CN112267570A - Prefabricated section steel concrete column and sandwich concrete composite plate node and construction method - Google Patents
Prefabricated section steel concrete column and sandwich concrete composite plate node and construction method Download PDFInfo
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- CN112267570A CN112267570A CN202011253131.2A CN202011253131A CN112267570A CN 112267570 A CN112267570 A CN 112267570A CN 202011253131 A CN202011253131 A CN 202011253131A CN 112267570 A CN112267570 A CN 112267570A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 443
- 239000010959 steel Substances 0.000 title claims abstract description 443
- 239000004567 concrete Substances 0.000 title claims abstract description 239
- 239000002131 composite material Substances 0.000 title claims abstract description 142
- 238000010276 construction Methods 0.000 title claims abstract description 23
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 66
- 238000004519 manufacturing process Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000003466 welding Methods 0.000 claims description 28
- 238000013461 design Methods 0.000 claims description 21
- 238000009415 formwork Methods 0.000 claims description 21
- 238000004873 anchoring Methods 0.000 claims description 13
- 230000000149 penetrating effect Effects 0.000 claims description 11
- 238000012545 processing Methods 0.000 claims description 9
- 230000002787 reinforcement Effects 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 3
- 230000002708 enhancing effect Effects 0.000 claims description 3
- 238000003754 machining Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 description 10
- 230000008901 benefit Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007850 degeneration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
- E04B1/4114—Elements with sockets
- E04B1/4142—Elements with sockets with transverse hook- or loop-receiving parts
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
- E04B1/4157—Longitudinally-externally threaded elements extending from the concrete or masonry, e.g. anchoring bolt with embedded head
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Abstract
A prefabricated section steel concrete column and sandwich concrete composite slab node and a construction method thereof, wherein the node comprises a prefabricated section steel concrete column and a sandwich concrete composite slab, and further comprises an annular steel plate sleeve, an upper outer ring plate, a lower outer ring plate and a through bolt when an outer ring plate and a through bolt are adopted in a matching connection mode; the method comprises the following steps: manufacturing prefabricated steel reinforced concrete columns and sandwich concrete composite plates; installing a prefabricated steel reinforced concrete column; installing a sandwich concrete composite slab; when the outer ring plate and the through bolt are matched and connected, the sandwich concrete composite plate is assembled and fixed with the prefabricated section steel concrete column through the upper outer ring plate, the lower outer ring plate and the through bolt; when the overhanging combined board and the steel cover board are matched and connected, the sandwich concrete combined board is assembled and fixed through the top steel cover board, the bottom steel cover board and the high-strength bolt.
Description
Technical Field
The invention belongs to the technical field of building engineering, and particularly relates to a prefabricated section steel concrete column and sandwich concrete composite slab node and a construction method.
Background
The column plate structure is a house structure of a bearing system consisting of columns and floor slabs, is a special case of a frame structure, and generally mainly comprises reinforced concrete materials. Because there is not the roof beam under the indoor floor of slab-column structure, the electromechanical pipeline of being convenient for arranges, can reduce the building floor height, has advantages such as the space is unobstructed succinct, plane arrangement is nimble. The column plate structure is suitable for halls of multi-storey factory buildings, warehouses and public buildings, and can also be used for office buildings, houses and the like.
At present, the construction process of the column plate structure is mainly based on-site wet operation, but cast-in-place construction not only causes the problems of serious environmental pollution, noise pollution and the like, but also mostly manually operates on a construction site, so that the labor efficiency is low and the construction period is long. With the development of economy, the demand of people on the quality of life and the quality of housing can not be met by a cast-in-place construction method, the resource consumption and the influence on the environment caused by the traditional construction mode are changed by the assembly type structure, and the cast-in-place construction method has outstanding advantages in the aspects of construction, quality and the like. The assembled structure is produced in a factory through standardized production, so that the field cast-in-place operation is greatly reduced, and the labor productivity is obviously improved. The assembly type building error reaches millimeter level, the components are produced in a factory, and the quality is greatly improved. The concrete columns and concrete slabs and steel columns and concrete slabs which are commonly used in building structures need to have the characteristics of good anti-seismic performance, good ductility, strong bearing capacity, quick construction and the like. Therefore, it is necessary to develop a reasonable column plate connection technology.
The prefabricated section steel concrete column is a column structure with steel bars and concrete poured on the periphery of section steel, can be reasonably provided with more steel materials under the condition of the same section size, and has the advantages of strong degeneration capability, good anti-seismic performance and the like.
The sandwich concrete composite board is a novel composite board formed by connecting two steel plates and internal concrete thereof through a shear connector, and has the advantages of high bearing capacity, high rigidity, good ductility, fatigue resistance and the like.
Therefore, the plate column structure of the prefabricated section steel concrete column and sandwich concrete composite plate can fully utilize respective structural characteristics, and further improve the lateral force resistance rigidity and the seismic performance of the plate column structure. However, it is critical to connect the prefabricated steel reinforced concrete column and the sandwich concrete composite slab in which manner.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the prefabricated section steel concrete column and sandwich concrete composite plate node and the construction method, which can take the construction efficiency and the economic benefit into consideration while ensuring the stable connection of the prefabricated section steel concrete column and the sandwich concrete composite plate, avoid the problems of heavy concrete floor slab, low strength and high steel structure cost, reduce the self weight of the structure, and improve the integrity, the stability and the earthquake resistance of the plate column structure.
In order to achieve the purpose, the invention adopts the following technical scheme: a prefabricated section steel concrete column and sandwich concrete composite plate node adopts a mode that an outer ring plate is matched and connected with a through bolt, and comprises a prefabricated section steel concrete column, a sandwich concrete composite plate, an annular steel plate sleeve, an upper outer ring plate, a lower outer ring plate and a through bolt; a prefabricated section steel concrete column preformed hole is formed in the middle of the sandwich concrete composite plate, and the prefabricated section steel concrete column is arranged in the prefabricated section steel concrete column preformed hole in a penetrating mode; the annular steel plate sleeve is fixedly arranged on the prefabricated section steel concrete column at the position of the preformed hole of the prefabricated section steel concrete column; the upper outer ring plate is positioned on the upper surface of the sandwich concrete composite plate and is distributed along the circumferential direction of the prefabricated section steel concrete column, and the inner end of the upper outer ring plate is fixedly connected to the circumferential steel plate sleeve in a welding mode; the lower outer ring plate is positioned on the lower surface of the sandwich concrete composite plate and is distributed along the circumferential direction of the prefabricated section steel concrete column, and the inner end of the lower outer ring plate is fixedly connected to the circumferential steel plate sleeve in a welding mode; a plurality of reserved bolt holes are correspondingly distributed on the upper outer ring plate, the sandwich concrete combined plate and the lower outer ring plate, a through bolt is installed in each reserved bolt hole, and the upper outer ring plate, the sandwich concrete combined plate and the lower outer ring plate are fixedly connected through the through bolts.
The construction method of the prefabricated section steel concrete column and sandwich concrete composite slab node comprises the following steps:
the method comprises the following steps: manufacturing a prefabricated steel reinforced concrete column, a sandwich concrete composite plate, an upper outer ring plate and a lower outer ring plate;
firstly, when a prefabricated section steel concrete column is manufactured, firstly, selecting inner section steel according to design requirements, binding a reinforcement framework at the same time, wherein the inner section steel is I-shaped steel or cross-shaped steel, welding stiffening steel plates between flanges on two sides of the middle part of a web plate of the I-shaped steel when the I-shaped steel is adopted, ensuring that the stiffening steel plates are parallel to the web plate of the I-shaped steel, facilitating the welding and fixing of anchoring steel bars, then welding the anchoring steel bars inside annular steel plate sleeves, arranging the annular steel plate sleeves welded with the anchoring steel bars at set positions, then directly welding the anchoring steel bars onto the inner section steel or the stiffening steel plates, completing the fixing of the annular steel plate sleeves, then completing a formwork support, and finally integrally pouring the prefabricated section steel concrete column until concrete is cured and formed;
secondly, when the sandwich concrete composite slab is manufactured, firstly, two steel plates are selected according to design requirements, the two steel plates are distributed as a top steel plate and a bottom steel plate of the sandwich concrete composite slab, prefabricated section steel concrete column reserved holes are processed in the middles of the top steel plate and the bottom steel plate, then, a specified number of reserved bolt holes are processed in set positions on the top steel plate and the bottom steel plate, then, a formwork is completed, reserved bolt hole forming molds are arranged in the formwork, and finally, concrete is poured in the formwork until the concrete is solidified and formed;
thirdly, when the upper outer ring plate and the lower outer ring plate are manufactured, selecting steel plates as the upper outer ring plate and the lower outer ring plate according to the design size, and then machining the preset number of bolt holes at the set positions on the upper outer ring plate and the lower outer ring plate;
step two: mounting and positioning the manufactured prefabricated steel reinforced concrete column to a specified position;
step three: welding and fixing the manufactured lower outer ring plate to a specified position on the annular steel plate sleeve;
step four: hoisting the manufactured sandwich concrete composite plate to the position above the top of the prefabricated steel reinforced concrete column, enabling a prefabricated steel reinforced concrete column preformed hole in the middle of the sandwich concrete composite plate to be opposite to the top of the prefabricated steel reinforced concrete column, then controlling the sandwich concrete composite plate to descend, enabling the prefabricated steel reinforced concrete column to penetrate through the prefabricated steel reinforced concrete column preformed hole in the middle of the sandwich concrete composite plate until the sandwich concrete composite plate accurately falls on the lower outer ring plate, and simultaneously ensuring that the sandwich concrete composite plate is aligned with a preformed bolt hole in the lower outer ring plate;
step five: the manufactured upper outer ring plate is horizontally placed on the upper surface of the sandwich concrete composite plate and located at a specified position on the prefabricated section steel concrete column, the upper outer ring plate is ensured to be aligned with a reserved bolt hole on the sandwich concrete composite plate, and then the upper outer ring plate and the annular steel plate sleeve are welded together;
step six: and penetrating a through bolt into each reserved bolt hole and screwing a nut until the assembly is finished.
A prefabricated section steel concrete column and sandwich concrete composite slab node adopts a mode that an overhanging composite slab is matched and connected with a steel cover plate, and comprises a prefabricated section steel concrete column, a sandwich concrete composite slab, an overhanging composite slab, a top steel cover plate, a bottom steel cover plate and a high-strength bolt; a prefabricated section steel concrete column preformed hole is formed in the middle of the sandwich concrete composite plate, and the prefabricated section steel concrete column is arranged in the prefabricated section steel concrete column preformed hole in a penetrating mode; the overhanging combined plate is positioned on the prefabricated section steel concrete column at the position of the preformed hole of the prefabricated section steel concrete column, and the overhanging combined plate and the prefabricated section steel concrete column adopt an integrated prefabricated structure; the top steel cover plate is positioned on the upper surface of a joint of the overhanging combined plate and the sandwich concrete combined plate, and the bottom steel cover plate is positioned on the lower surface of the joint of the overhanging combined plate and the sandwich concrete combined plate; the high-strength bolts are distributed on the upper surface and the lower surface of the overhanging combined plate and the sandwich concrete combined plate at the two sides of the joint; the high-strength bolt adopts a pre-embedded fixing form, and a screw rod of the high-strength bolt is vertically exposed; reserved bolt holes are formed in positions, corresponding to the high-strength bolts, of the top steel cover plate and the bottom steel cover plate, the high-strength bolts penetrate through the reserved bolt holes, and the top steel cover plate and the bottom steel cover plate are fixedly connected with the overhanging composite board and the sandwich concrete composite board through the high-strength bolts.
The construction method of the prefabricated section steel concrete column and sandwich concrete composite slab node comprises the following steps:
the method comprises the following steps: manufacturing a prefabricated steel reinforced concrete column, a sandwich concrete composite plate, a top steel cover plate and a bottom steel cover plate;
firstly, when the prefabricated section steel concrete column is manufactured, firstly, selecting inner section steel according to design requirements, wherein the inner section steel is I-shaped steel or cross-shaped steel; selecting a top steel plate and a bottom steel plate in the overhanging combined plate according to design requirements, processing reserved holes for the inner steel to pass through in the middle of the top steel plate and the bottom steel plate, processing steel reinforcement framework longitudinal reinforcement passing holes and reserved bolt holes in set positions on the top steel plate and the bottom steel plate, welding embedded parts for enhancing the bonding effect between the embedded parts and concrete on the inner surfaces of the top steel plate and the bottom steel plate, assembling high-strength bolts into the reserved bolt holes in the top steel plate and the bottom steel plate according to requirements, and welding and fixing the processed top steel plate and the processed bottom steel plate at the set positions of the inner steel; then selecting longitudinal bars in the column body, enabling the longitudinal bars to penetrate through the longitudinal bar frame longitudinal bar penetrating holes in the top steel plate and the bottom steel plate, and then binding stirrups to form a steel bar frame; completing a formwork, and finally integrally pouring the prefabricated section steel concrete column and the overhanging composite board until the concrete is cured and formed;
secondly, when the sandwich concrete composite slab is manufactured, firstly, two steel plates are selected according to design requirements, the two steel plates are distributed as a top steel plate and a bottom steel plate of the sandwich concrete composite slab, prefabricated section steel concrete column reserved holes are machined in the middles of the top steel plate and the bottom steel plate, then, a specified number of reserved bolt holes are machined in set positions on the top steel plate and the bottom steel plate, then, high-strength bolts are assembled into the reserved bolt holes in the top steel plate and the bottom steel plate according to the requirements, then, formwork supporting is completed, and finally, concrete is poured in the formwork until the concrete is solidified and formed;
thirdly, manufacturing a top steel cover plate and a bottom steel cover plate, selecting steel plates as the top steel cover plate and the bottom steel cover plate according to the design size, and then processing the preset bolt holes with the specified quantity at the set positions on the top steel cover plate and the bottom steel cover plate;
step two: mounting and positioning the manufactured prefabricated steel reinforced concrete column to a specified position;
step three: hoisting the manufactured sandwich concrete composite board to the position above the top of the prefabricated steel reinforced concrete column, enabling a prefabricated steel reinforced concrete column preformed hole in the middle of the sandwich concrete composite board to be opposite to the top of the prefabricated steel reinforced concrete column, then controlling the sandwich concrete composite board to descend, enabling the prefabricated steel reinforced concrete column to penetrate through the prefabricated steel reinforced concrete column preformed hole in the middle of the sandwich concrete composite board until an overhanging composite board on the prefabricated steel reinforced concrete column accurately enters a preformed hole of the sandwich concrete composite board, and simultaneously ensuring that the sandwich concrete composite board is flush with the upper surface and the lower surface of the overhanging composite board;
step four: arranging a top steel cover plate at a set position on the upper surfaces of the sandwich concrete composite plate and the overhanging composite plate, ensuring that the exposed end of the high-strength bolt accurately passes through a reserved bolt hole on the top steel cover plate, and then screwing a nut; and meanwhile, the bottom steel cover plate is arranged at the set positions of the lower surfaces of the sandwich concrete composite plate and the overhanging composite plate, the exposed end of the high-strength bolt accurately penetrates through the reserved bolt hole in the bottom steel cover plate, and then the nut is screwed until the assembly is finished.
The invention has the beneficial effects that:
according to the prefabricated section steel concrete column and sandwich concrete composite slab node and the construction method, stable connection of the prefabricated section steel concrete column and the sandwich concrete composite slab is guaranteed, meanwhile, construction efficiency and economic benefits can be considered, the problems of heaviness, low strength and high steel structure cost of a concrete floor slab are solved, the self weight of the structure is reduced, and the integrity, stability and earthquake resistance of the slab-column structure are improved.
Drawings
FIG. 1 is a schematic structural diagram of a prefabricated steel reinforced concrete column and sandwich concrete composite slab node (adopting a mode of matching and connecting an outer ring plate and a through bolt) according to the invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a sectional view taken along line B-B in FIG. 1 (the inner steel is an I-shaped steel);
FIG. 4 is a sectional view taken along line B-B in FIG. 1 (the inner steel is a cross-shaped steel);
FIG. 5 is a schematic structural diagram of a prefabricated steel reinforced concrete column and sandwich concrete composite slab node (adopting an overhanging composite slab and steel cover plate matching connection mode) according to the present invention;
FIG. 6 is a cross-sectional view taken along line C-C of FIG. 5;
FIG. 7 is a sectional view taken along line D-D in FIG. 5 (the inner steel is an I-shaped steel);
FIG. 8 is a cross-sectional view taken along line D-D in FIG. 5 (the inner steel is a cross-shaped steel);
FIG. 9 is a schematic structural view of a prefabricated steel reinforced concrete column (provided with an overhanging composition board) of the present invention;
FIG. 10 is a cross-sectional view taken along line E-E of FIG. 9;
FIG. 11 is a sectional view taken along line F-F in FIG. 9 (the inner steel is an I-shaped steel);
FIG. 12 is a sectional view taken along line F-F in FIG. 9 (the inner steel is a cross-shaped steel);
FIG. 13 is a sectional view taken along line G-G in FIG. 9 (the inner steel is an I-shaped steel);
FIG. 14 is a sectional view taken along line G-G in FIG. 9 (the inner steel is a cross-shaped steel);
in the figure, 1-prefabricated section steel concrete column, 2-sandwich concrete composite slab, 3-through bolt, 4-high strength bolt, 5-concrete, 6-internal steel, 7-anchoring steel bar, 8-circumferential steel plate sleeve, 9-reserved bolt hole, 10-upper outer ring plate, 11-lower outer ring plate, 12-top steel plate, 13-bottom steel plate, 14-overhanging composite slab, 15-top steel cover plate and 16-bottom steel cover plate.
Detailed Description
The invention is described in further detail below with reference to the figures and the specific embodiments.
As shown in fig. 1 to 4, a prefabricated steel reinforced concrete column and sandwich concrete composite slab node adopts a mode of matching and connecting an outer ring plate and a through bolt, and comprises a prefabricated steel reinforced concrete column 1, a sandwich concrete composite slab 2, a circumferential steel plate sleeve 8, an upper outer ring plate 10, a lower outer ring plate 11 and a through bolt 3; a prefabricated section steel concrete column preformed hole is formed in the middle of the sandwich concrete composite plate 2, and the prefabricated section steel concrete column 1 is arranged in the prefabricated section steel concrete column preformed hole in a penetrating mode; the annular steel plate sleeve 8 is fixedly arranged on the prefabricated section steel concrete column 1 at the position of the preformed hole of the prefabricated section steel concrete column; the upper outer annular plate 10 is positioned on the upper surface of the sandwich concrete composite plate 2 and is distributed along the circumferential direction of the prefabricated section steel concrete column 1, and the inner end of the upper outer annular plate 10 is fixedly connected to the annular steel plate sleeve 8 in a welding mode; the lower outer annular plate 11 is positioned on the lower surface of the sandwich concrete composite plate 2 and is distributed along the circumferential direction of the prefabricated section steel concrete column 1, and the inner end of the lower outer annular plate 11 is fixedly connected to the circumferential steel plate sleeve 8 in a welding mode; a plurality of reserved bolt holes 9 are correspondingly distributed in the upper outer ring plate 10, the sandwich concrete combined plate 2 and the lower outer ring plate 11, a through bolt 3 is installed in each reserved bolt hole 9, and the upper outer ring plate 10, the sandwich concrete combined plate 2 and the lower outer ring plate 11 are fixedly connected through the through bolts 3.
The construction method of the prefabricated section steel concrete column and sandwich concrete composite slab node comprises the following steps:
the method comprises the following steps: manufacturing a prefabricated steel reinforced concrete column 1, a sandwich concrete composite plate 2, an upper outer ring plate 10 and a lower outer ring plate 11;
firstly, when a prefabricated steel reinforced concrete column 1 is manufactured, firstly, selecting inner section steel 6 according to design requirements, binding a steel reinforcement framework, wherein the inner section steel 6 is I-shaped steel or cross-shaped steel, welding stiffening steel plates between flanges on two sides of the middle part of a web plate of the I-shaped steel when the I-shaped steel is adopted, ensuring that the stiffening steel plates are parallel to the web plate of the I-shaped steel, facilitating the welding and fixing of anchoring steel bars, then welding the anchoring steel bars 7 inside a circumferential steel plate sleeve 8, arranging the circumferential steel plate sleeve 8 welded with the anchoring steel bars 7 at a set position, then directly welding the anchoring steel bars 7 on the inner section steel 6 or the stiffening steel plates, completing the fixing of the circumferential steel plate sleeve 8, then completing a formwork supporting, and finally integrally pouring the prefabricated steel reinforced concrete column 1 until concrete 5 is cured and formed;
secondly, when the sandwich concrete composite plate 2 is manufactured, firstly, two steel plates are selected according to design requirements, the two steel plates are distributed as a top steel plate 12 and a bottom steel plate 13 of the sandwich concrete composite plate 2, prefabricated section steel concrete column preformed holes are processed in the middle of the top steel plate 12 and the bottom steel plate 13, then, a specified number of reserved bolt holes 9 are processed in set positions on the top steel plate 12 and the bottom steel plate 13, then, a formwork is completed, a forming die for the reserved bolt holes 9 is arranged in the formwork, and finally, concrete 5 is poured in the formwork until the concrete 5 is cured and formed;
thirdly, when the upper outer ring plate 10 and the lower outer ring plate 11 are manufactured, steel plates are selected as the upper outer ring plate 10 and the lower outer ring plate 11 according to the design size, and then the preset bolt holes 9 with the specified number are machined in the set positions on the upper outer ring plate 10 and the lower outer ring plate 11;
step two: mounting and positioning the manufactured prefabricated steel reinforced concrete column 1 to a specified position;
step three: welding and fixing the manufactured lower outer ring plate 11 to a specified position on the annular steel plate sleeve 8;
step four: hoisting the manufactured sandwich concrete composite slab 2 to be above the top of the prefabricated steel reinforced concrete column 1, enabling a prefabricated steel reinforced concrete column preformed hole in the middle of the sandwich concrete composite slab 2 to be opposite to the top of the prefabricated steel reinforced concrete column 1, then controlling the sandwich concrete composite slab 2 to descend, enabling the prefabricated steel reinforced concrete column 1 to penetrate through the prefabricated steel reinforced concrete column preformed hole in the middle of the sandwich concrete composite slab 2 until the sandwich concrete composite slab 2 accurately falls on the lower outer ring slab 11, and simultaneously ensuring that the sandwich concrete composite slab 2 is aligned with a preformed bolt hole 9 in the lower outer ring slab 11;
step five: flatly placing the manufactured upper outer ring plate 10 on the upper surface of the sandwich concrete composite plate 2 and at a specified position on the prefabricated section steel concrete column 1, ensuring that the upper outer ring plate 10 is aligned with a reserved bolt hole 9 on the sandwich concrete composite plate 2, and then welding the upper outer ring plate 10 and the annular steel plate sleeve 8 together;
step six: the through bolt 3 is inserted into each of the reserved bolt holes 9 and the nut is tightened until the assembly is completed.
As shown in fig. 5 to 14, a prefabricated steel reinforced concrete column and sandwich concrete composite slab node adopts a matching connection mode of an overhanging composite slab and a steel cover plate, and comprises a prefabricated steel reinforced concrete column 1, a sandwich concrete composite slab 2, an overhanging composite slab 14, a top steel cover plate 15, a bottom steel cover plate 16 and a high-strength bolt 4; a prefabricated section steel concrete column preformed hole is formed in the middle of the sandwich concrete composite plate 2, and the prefabricated section steel concrete column 1 is arranged in the prefabricated section steel concrete column preformed hole in a penetrating mode; the overhanging composition board 14 is positioned on the prefabricated steel reinforced concrete column 1 at the position of the preformed hole of the prefabricated steel reinforced concrete column, and the overhanging composition board 14 and the prefabricated steel reinforced concrete column 1 adopt an integrated prefabricated structure; the top steel cover plate 15 is positioned on the upper surface of the joint of the overhanging composition board 14 and the sandwich concrete composition board 2, and the bottom steel cover plate 16 is positioned on the lower surface of the joint of the overhanging composition board 14 and the sandwich concrete composition board 2; the high-strength bolts 4 are distributed on the upper and lower surfaces of the overhanging composition board 14 and the sandwich concrete composition board 2 at two sides of the joint; the high-strength bolt 4 adopts a pre-embedded fixing form, and a screw rod of the high-strength bolt 4 is vertically exposed; reserved bolt holes 9 are formed in positions, corresponding to the high-strength bolts 4, of the top steel cover plate 15 and the bottom steel cover plate 16, the high-strength bolts 4 penetrate through the reserved bolt holes 9, and the top steel cover plate 15 and the bottom steel cover plate 16 are fixedly connected with the overhanging composite plate 14 and the sandwich concrete composite plate 2 through the high-strength bolts 4.
The construction method of the prefabricated section steel concrete column and sandwich concrete composite slab node comprises the following steps:
the method comprises the following steps: manufacturing a prefabricated steel reinforced concrete column 1, a sandwich concrete composite plate 2, a top steel cover plate 15 and a bottom steel cover plate 16;
firstly, when the prefabricated section steel concrete column 1 is manufactured, firstly, the inner section steel 6 is selected according to design requirements, the inner section steel 6 is I-shaped steel or cross-shaped steel, and when the I-shaped steel is adopted, stiffening steel plates can be welded between flanges on two sides of the middle part of a web plate of the I-shaped steel, so that the stiffening steel plates are parallel to the web plate of the I-shaped steel; selecting a top steel plate 12 and a bottom steel plate 13 in an overhanging composite plate 14 according to design requirements, processing reserved holes for the inner steel 6 to pass through in the middle of the top steel plate 12 and the bottom steel plate 13, processing steel reinforcement framework longitudinal reinforcement passing holes and reserved bolt holes 9 in set positions on the top steel plate 12 and the bottom steel plate 13, welding embedded parts for enhancing the bonding effect with concrete on the inner surfaces of the top steel plate 12 and the bottom steel plate 13, assembling high-strength bolts 4 into the reserved bolt holes 9 on the top steel plate 12 and the bottom steel plate 13 according to requirements, and welding and fixing the processed top steel plate 12 and the processed bottom steel plate 13 at the set positions of the inner steel 6; then selecting longitudinal bars in the column body, enabling the longitudinal bars to penetrate through the longitudinal bar framework longitudinal bar penetrating holes in the top steel plate 12 and the bottom steel plate 13, and then binding stirrups to form a steel bar framework; finishing a formwork, and finally integrally pouring the prefabricated steel reinforced concrete column 1 and the overhanging composition board 14 until the concrete 5 is cured and formed;
secondly, when the sandwich concrete composite slab 2 is manufactured, firstly, two steel plates are selected according to design requirements and distributed as a top steel plate 12 and a bottom steel plate 13 of the sandwich concrete composite slab 2, prefabricated section steel concrete column reserved holes are processed in the middle of the top steel plate 12 and the bottom steel plate 13, then, a specified number of reserved bolt holes 9 are processed in set positions on the top steel plate 12 and the bottom steel plate 13, then, high-strength bolts 4 are assembled into the reserved bolt holes 9 on the top steel plate 12 and the bottom steel plate 13 according to requirements, then, a formwork is completed, and finally, concrete 5 is poured into the formwork until the concrete 5 is solidified and formed;
thirdly, manufacturing a top steel cover plate 15 and a bottom steel cover plate 16, selecting steel plates as the top steel cover plate 15 and the bottom steel cover plate 16 according to the design size, and then processing the preset number of reserved bolt holes 9 at the set positions on the top steel cover plate 15 and the bottom steel cover plate 16;
step two: mounting and positioning the manufactured prefabricated steel reinforced concrete column 1 to a specified position;
step three: hoisting and lifting the manufactured sandwich concrete composite slab 2 to be above the top of the prefabricated steel reinforced concrete column 1, enabling a prefabricated steel reinforced concrete column preformed hole in the middle of the sandwich concrete composite slab 2 to be opposite to the top of the prefabricated steel reinforced concrete column 1, then controlling the sandwich concrete composite slab 2 to descend, enabling the prefabricated steel reinforced concrete column 1 to penetrate through the prefabricated steel reinforced concrete column preformed hole in the middle of the sandwich concrete composite slab 2 until the overhanging composite slab 14 on the prefabricated steel reinforced concrete column 1 accurately enters the preformed hole of the sandwich concrete composite slab, and simultaneously ensuring that the upper surface and the lower surface of the sandwich concrete composite slab 2 and the overhanging composite slab 14 are flush;
step four: the top steel cover plate 15 is placed at the upper surface set positions of the sandwich concrete composite plate 2 and the overhanging composite plate 14, the exposed end of the high-strength bolt 4 is ensured to accurately penetrate through the reserved bolt hole 9 on the top steel cover plate 15, and then the nut is screwed; meanwhile, the bottom steel cover plate 16 is placed at a set position on the lower surfaces of the sandwich concrete composite plate 2 and the overhanging composite plate 14, the exposed end of the high-strength bolt 4 is ensured to accurately pass through the reserved bolt hole 9 on the bottom steel cover plate 16, and then the nut is screwed until the assembly is finished.
The embodiments are not intended to limit the scope of the present invention, and all equivalent implementations or modifications without departing from the scope of the present invention are intended to be included in the scope of the present invention.
Claims (4)
1. The utility model provides a prefabricated shaped steel concrete column and sandwich concrete compoboard node which characterized in that: the outer ring plate and the through bolt are connected in a matching mode and comprise a prefabricated steel reinforced concrete column, a sandwich concrete composite plate, a circumferential steel plate sleeve, an upper outer ring plate, a lower outer ring plate and the through bolt; a prefabricated section steel concrete column preformed hole is formed in the middle of the sandwich concrete composite plate, and the prefabricated section steel concrete column is arranged in the prefabricated section steel concrete column preformed hole in a penetrating mode; the annular steel plate sleeve is fixedly arranged on the prefabricated section steel concrete column at the position of the preformed hole of the prefabricated section steel concrete column; the upper outer ring plate is positioned on the upper surface of the sandwich concrete composite plate and is distributed along the circumferential direction of the prefabricated section steel concrete column, and the inner end of the upper outer ring plate is fixedly connected to the circumferential steel plate sleeve in a welding mode; the lower outer ring plate is positioned on the lower surface of the sandwich concrete composite plate and is distributed along the circumferential direction of the prefabricated section steel concrete column, and the inner end of the lower outer ring plate is fixedly connected to the circumferential steel plate sleeve in a welding mode; a plurality of reserved bolt holes are correspondingly distributed on the upper outer ring plate, the sandwich concrete combined plate and the lower outer ring plate, a through bolt is installed in each reserved bolt hole, and the upper outer ring plate, the sandwich concrete combined plate and the lower outer ring plate are fixedly connected through the through bolts.
2. The construction method of the prefabricated steel reinforced concrete column and sandwich concrete composite slab joint as claimed in claim 1, characterized by comprising the steps of:
the method comprises the following steps: manufacturing a prefabricated steel reinforced concrete column, a sandwich concrete composite plate, an upper outer ring plate and a lower outer ring plate;
firstly, when a prefabricated section steel concrete column is manufactured, firstly, selecting inner section steel according to design requirements, binding a reinforcement framework at the same time, wherein the inner section steel is I-shaped steel or cross-shaped steel, welding stiffening steel plates between flanges on two sides of the middle part of a web plate of the I-shaped steel when the I-shaped steel is adopted, ensuring that the stiffening steel plates are parallel to the web plate of the I-shaped steel, facilitating the welding and fixing of anchoring steel bars, then welding the anchoring steel bars inside annular steel plate sleeves, arranging the annular steel plate sleeves welded with the anchoring steel bars at set positions, then directly welding the anchoring steel bars onto the inner section steel or the stiffening steel plates, completing the fixing of the annular steel plate sleeves, then completing a formwork support, and finally integrally pouring the prefabricated section steel concrete column until concrete is cured and formed;
secondly, when the sandwich concrete composite slab is manufactured, firstly, two steel plates are selected according to design requirements, the two steel plates are distributed as a top steel plate and a bottom steel plate of the sandwich concrete composite slab, prefabricated section steel concrete column reserved holes are processed in the middles of the top steel plate and the bottom steel plate, then, a specified number of reserved bolt holes are processed in set positions on the top steel plate and the bottom steel plate, then, a formwork is completed, reserved bolt hole forming molds are arranged in the formwork, and finally, concrete is poured in the formwork until the concrete is solidified and formed;
thirdly, when the upper outer ring plate and the lower outer ring plate are manufactured, selecting steel plates as the upper outer ring plate and the lower outer ring plate according to the design size, and then machining the preset number of bolt holes at the set positions on the upper outer ring plate and the lower outer ring plate;
step two: mounting and positioning the manufactured prefabricated steel reinforced concrete column to a specified position;
step three: welding and fixing the manufactured lower outer ring plate to a specified position on the annular steel plate sleeve;
step four: hoisting the manufactured sandwich concrete composite plate to the position above the top of the prefabricated steel reinforced concrete column, enabling a prefabricated steel reinforced concrete column preformed hole in the middle of the sandwich concrete composite plate to be opposite to the top of the prefabricated steel reinforced concrete column, then controlling the sandwich concrete composite plate to descend, enabling the prefabricated steel reinforced concrete column to penetrate through the prefabricated steel reinforced concrete column preformed hole in the middle of the sandwich concrete composite plate until the sandwich concrete composite plate accurately falls on the lower outer ring plate, and simultaneously ensuring that the sandwich concrete composite plate is aligned with a preformed bolt hole in the lower outer ring plate;
step five: the manufactured upper outer ring plate is horizontally placed on the upper surface of the sandwich concrete composite plate and located at a specified position on the prefabricated section steel concrete column, the upper outer ring plate is ensured to be aligned with a reserved bolt hole on the sandwich concrete composite plate, and then the upper outer ring plate and the annular steel plate sleeve are welded together;
step six: and penetrating a through bolt into each reserved bolt hole and screwing a nut until the assembly is finished.
3. The utility model provides a prefabricated shaped steel concrete column and sandwich concrete compoboard node which characterized in that: prefabricating a steel reinforced concrete column, a sandwich concrete composite plate, an overhanging composite plate, a top steel cover plate, a bottom steel cover plate and a high-strength bolt in a mode of matching and connecting the overhanging composite plate and the steel cover plate; a prefabricated section steel concrete column preformed hole is formed in the middle of the sandwich concrete composite plate, and the prefabricated section steel concrete column is arranged in the prefabricated section steel concrete column preformed hole in a penetrating mode; the overhanging combined plate is positioned on the prefabricated section steel concrete column at the position of the preformed hole of the prefabricated section steel concrete column, and the overhanging combined plate and the prefabricated section steel concrete column adopt an integrated prefabricated structure; the top steel cover plate is positioned on the upper surface of a joint of the overhanging combined plate and the sandwich concrete combined plate, and the bottom steel cover plate is positioned on the lower surface of the joint of the overhanging combined plate and the sandwich concrete combined plate; the high-strength bolts are distributed on the upper surface and the lower surface of the overhanging combined plate and the sandwich concrete combined plate at the two sides of the joint; the high-strength bolt adopts a pre-embedded fixing form, and a screw rod of the high-strength bolt is vertically exposed; reserved bolt holes are formed in positions, corresponding to the high-strength bolts, of the top steel cover plate and the bottom steel cover plate, the high-strength bolts penetrate through the reserved bolt holes, and the top steel cover plate and the bottom steel cover plate are fixedly connected with the overhanging composite board and the sandwich concrete composite board through the high-strength bolts.
4. The construction method of the prefabricated steel reinforced concrete column and sandwich concrete composite slab joint as claimed in claim 3, characterized by comprising the steps of:
the method comprises the following steps: manufacturing a prefabricated steel reinforced concrete column, a sandwich concrete composite plate, a top steel cover plate and a bottom steel cover plate;
firstly, when the prefabricated section steel concrete column is manufactured, firstly, selecting inner section steel according to design requirements, wherein the inner section steel is I-shaped steel or cross-shaped steel; selecting a top steel plate and a bottom steel plate in the overhanging combined plate according to design requirements, processing reserved holes for the inner steel to pass through in the middle of the top steel plate and the bottom steel plate, processing steel reinforcement framework longitudinal reinforcement passing holes and reserved bolt holes in set positions on the top steel plate and the bottom steel plate, welding embedded parts for enhancing the bonding effect between the embedded parts and concrete on the inner surfaces of the top steel plate and the bottom steel plate, assembling high-strength bolts into the reserved bolt holes in the top steel plate and the bottom steel plate according to requirements, and welding and fixing the processed top steel plate and the processed bottom steel plate at the set positions of the inner steel; then selecting longitudinal bars in the column body, enabling the longitudinal bars to penetrate through the longitudinal bar frame longitudinal bar penetrating holes in the top steel plate and the bottom steel plate, and then binding stirrups to form a steel bar frame; completing a formwork, and finally integrally pouring the prefabricated section steel concrete column and the overhanging composite board until the concrete is cured and formed;
secondly, when the sandwich concrete composite slab is manufactured, firstly, two steel plates are selected according to design requirements, the two steel plates are distributed as a top steel plate and a bottom steel plate of the sandwich concrete composite slab, prefabricated section steel concrete column reserved holes are machined in the middles of the top steel plate and the bottom steel plate, then, a specified number of reserved bolt holes are machined in set positions on the top steel plate and the bottom steel plate, then, high-strength bolts are assembled into the reserved bolt holes in the top steel plate and the bottom steel plate according to the requirements, then, formwork supporting is completed, and finally, concrete is poured in the formwork until the concrete is solidified and formed;
thirdly, manufacturing a top steel cover plate and a bottom steel cover plate, selecting steel plates as the top steel cover plate and the bottom steel cover plate according to the design size, and then processing the preset bolt holes with the specified quantity at the set positions on the top steel cover plate and the bottom steel cover plate;
step two: mounting and positioning the manufactured prefabricated steel reinforced concrete column to a specified position;
step three: hoisting the manufactured sandwich concrete composite board to the position above the top of the prefabricated steel reinforced concrete column, enabling a prefabricated steel reinforced concrete column preformed hole in the middle of the sandwich concrete composite board to be opposite to the top of the prefabricated steel reinforced concrete column, then controlling the sandwich concrete composite board to descend, enabling the prefabricated steel reinforced concrete column to penetrate through the prefabricated steel reinforced concrete column preformed hole in the middle of the sandwich concrete composite board until an overhanging composite board on the prefabricated steel reinforced concrete column accurately enters a preformed hole of the sandwich concrete composite board, and simultaneously ensuring that the sandwich concrete composite board is flush with the upper surface and the lower surface of the overhanging composite board;
step four: arranging a top steel cover plate at a set position on the upper surfaces of the sandwich concrete composite plate and the overhanging composite plate, ensuring that the exposed end of the high-strength bolt accurately passes through a reserved bolt hole on the top steel cover plate, and then screwing a nut; and meanwhile, the bottom steel cover plate is arranged at the set positions of the lower surfaces of the sandwich concrete composite plate and the overhanging composite plate, the exposed end of the high-strength bolt accurately penetrates through the reserved bolt hole in the bottom steel cover plate, and then the nut is screwed until the assembly is finished.
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| CN202011253131.2A CN112267570A (en) | 2020-11-11 | 2020-11-11 | Prefabricated section steel concrete column and sandwich concrete composite plate node and construction method |
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| CN202011253131.2A CN112267570A (en) | 2020-11-11 | 2020-11-11 | Prefabricated section steel concrete column and sandwich concrete composite plate node and construction method |
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Application publication date: 20210126 |