CN111734010A - Assembly type double-limb shear wall with inner arch type connecting beams and assembly method - Google Patents
Assembly type double-limb shear wall with inner arch type connecting beams and assembly method Download PDFInfo
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- CN111734010A CN111734010A CN202010486873.3A CN202010486873A CN111734010A CN 111734010 A CN111734010 A CN 111734010A CN 202010486873 A CN202010486873 A CN 202010486873A CN 111734010 A CN111734010 A CN 111734010A
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- 238000000034 method Methods 0.000 title claims description 8
- 238000003466 welding Methods 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 71
- 239000010959 steel Substances 0.000 claims description 71
- 230000008878 coupling Effects 0.000 claims description 33
- 238000010168 coupling process Methods 0.000 claims description 33
- 238000005859 coupling reaction Methods 0.000 claims description 33
- 238000010276 construction Methods 0.000 abstract description 7
- 238000009434 installation Methods 0.000 abstract description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 12
- 238000005452 bending Methods 0.000 description 4
- 238000003475 lamination Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000009417 prefabrication 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
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
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- Engineering & Computer Science (AREA)
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Abstract
The utility model provides an assembly type double-limb shear wall of in-band arch formula is roof beam even which characterized in that: the double-column shear wall comprises a first shear wall unit, a second shear wall unit, an inner arch type connecting beam, a superposed layer, a vertical connecting member and a horizontal connecting member, wherein the first shear wall unit and the second shear wall unit are correspondingly connected up and down through the vertical connecting member; the connecting components between the shear wall units can be prefabricated in a component processing factory, and compared with the traditional cast-in-place building structure construction method, the cast-in-place building structure construction method has the advantages that the field welding and installation are convenient, the operation time is saved, the field labor force is reduced, and the assembly efficiency is improved.
Description
Technical Field
The invention relates to the technical field of constructional engineering, in particular to an assembly type double-limb shear wall with an inner arch type coupling beam and an assembly method.
Technical Field
In a prefabricated assembled concrete shear wall structure, almost all horizontal force is borne by a shear wall, and a connected shear wall is often adopted because a large-area opening is usually formed in the shear wall. The coupling effect of the connecting beam can help the coupled shear wall to resist the total overturning moment and delay the concentrated damage of the bottom of the wall under the combined action of high axial pressure and bending moment. How to ensure the reliable connection between the prefabricated concrete shear wall and the connecting beam, the structure has better integrity and ductility, and the key is that the interlaminar shear force can be effectively transferred, and the bearing capacity and the lateral stiffness of the structure are improved.
The span-height ratio of the connecting beam is small, the rigidity of the wall body is high, the connecting beam is determined to be easy to shear and damage, when the connecting beam is sheared and damaged, the bearing capacity is lost immediately, the wall limb is changed into a single cantilever wall, the lateral rigidity of the wall limb is reduced, the deformation is increased, the increased deformation increases the bending moment, and finally the structure can collapse; when the coupling beam is bent and damaged, a plastic hinge is formed at the beam end, the structural rigidity is reduced, the deformation is increased, a large amount of seismic energy can be absorbed, meanwhile, the plastic hinge can still continuously transmit bending moment and shearing force, a certain constraint effect is exerted on the wall limbs, and the sufficient rigidity and strength of the coupling wall are kept. When the earthquake-proof design is carried out, the shear failure of the connecting beam is to be avoided, and the ductility of the connecting beam is an important index influencing the failure form of the connecting beam.
Disclosure of Invention
In order to solve the problems of poor ductility performance of a connecting beam, complex assembly process and the like in the conventional assembled double-limb shear wall structure, the invention provides the assembled double-limb shear wall with the internal arch connecting beam, the ductility of the connecting beam and the energy consumption capability of the structure are improved through simple structural design, and meanwhile, the structural form has the advantages of simple and easy component processing, simple assembly process, time saving, high efficiency and the like, and has wider applicability.
In order to achieve the purpose, the invention provides an assembly type double-limb shear wall with an inner arch connecting beam, which is characterized in that: including first shear force wall unit, second shear force wall unit, interior hunch formula even roof beam, superimposed sheet, vertical connecting elements and horizontally connect the component, first shear force wall unit corresponds from top to bottom with second shear force wall unit and passes through vertical connecting elements connects, links the roof beam through horizontally connect component and interior hunch formula between the first shear force wall unit of two limbs and is connected, leaves the clearance between first shear force wall unit and the second shear force wall unit, has poured into the concrete in the clearance and forms the superimposed sheet.
The vertical connecting component comprises upper I-shaped steel, lower I-shaped steel and a middle steel plate, and the lower I-shaped steel is arranged on two sides of the first shear wall unit and extends out of the top of the first shear wall unit; the upper I-shaped steel is arranged on two sides of the second shear wall unit and extends out of the bottom of the second shear wall unit, and the steel plate is welded to the top of the lower I-shaped steel.
The horizontal connecting component comprises a transverse steel plate and a connecting sleeve, the transverse steel plate and the connecting sleeve are arranged on two sides of the inner arch type connecting beam, the transverse steel plate is welded with I-shaped steel in the first shear wall unit, and the connecting sleeve is connected with horizontal steel bars in the first shear wall unit.
The first shear wall unit is two L-shaped wall limbs, the second shear wall unit is two rectangular wall limbs, and concrete is poured into gaps among the L-shaped wall limbs, the rectangular wall limbs and the inner arch type connecting beams to form a laminated layer formed by the lower two supporting legs and the upper panel.
The I-shaped steel in the first shear wall unit and the I-shaped steel in the second shear wall unit are vertically arranged and are positioned on the same vertical axis.
The bottom of the inner arch type coupling beam is in an inwards concave arc shape, and horizontal steel bars and stirrups are arranged inside the coupling beam.
The laminated layer comprises two lower supporting legs and an upper panel and is composed of concrete poured in a gap formed by the first shear wall unit, the second shear wall unit and the inner arch type connecting beam.
An assembly method of an assembly type double-limb shear wall with an inner arch connecting beam comprises the following steps:
firstly, prefabricating a vertical connecting component and a horizontal connecting component;
secondly, placing the vertical connecting members in the first shear wall unit and the second shear wall unit for pouring to form a first shear wall unit with the vertical connecting members and a second shear wall unit with the vertical connecting members; placing the horizontal connecting members at two ends of the inner arch type coupling beam for pouring to form the inner arch type coupling beam with the horizontal connecting members;
thirdly, arranging two wall limbs of the first shear wall unit at intervals along the horizontal direction, wherein the interval space is smaller than the span of the inner arch type connecting beam, and arranging the inner arch type connecting beam between the two wall limbs of the first shear wall unit; two wall limbs of the second shear wall unit correspond to two wall limbs of the first shear wall unit up and down, and the top steel plate of the I-shaped steel in the second shear wall unit is welded with the top steel plate of the I-shaped steel in the first shear wall unit; welding a transverse steel plate in the inner arch type coupling beam with the I-shaped steel in the first shear wall unit, and connecting a transverse steel bar in the first shear wall unit with the inner arch type coupling beam through a connecting sleeve;
and fourthly, pouring concrete into gaps formed among the first shear wall units, the second shear wall units and the inner arch type connecting beams to form a laminated layer.
The invention has the advantages that: the double-column shear wall unit is connected through the inner arch type connecting beam with the arc-shaped bottom, so that the bending rigidity of the connecting beam is weakened to a certain extent, the ductility of the connecting beam is improved, the shearing bearing capacity of the end part of the connecting beam is not lost, the improvement of the seismic performance of the double-column shear wall structure is facilitated, and materials can be saved. The connecting components between the shear wall units can be prefabricated in a component processing factory, and compared with the traditional cast-in-place building structure construction method, the cast-in-place building structure construction method has the advantages that the field welding and installation are convenient, the operation time is saved, the field labor force is reduced, and the assembly efficiency is improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a first shear wall unit of the present invention;
FIG. 3 is a schematic view of a second shear wall unit of the present invention;
FIG. 4 is a schematic view of the vertical connecting member of the present invention;
FIG. 5 is a schematic view of the horizontal connecting member of the present invention;
FIG. 6 is a schematic view of an inverted arch corbel of the present invention;
figure 7 is a schematic view of a laminate layer of the present invention.
The reference numbers illustrate:
1. a first shear wall unit; 11. a first shear wall unit left wall limb; 111. horizontal reinforcing steel bars; 112. vertical reinforcing steel bars; 12. a first shear wall unit right wall limb; 121. horizontal reinforcing steel bars; 122. vertical reinforcing steel bars; 2. a second shear wall unit; 21. a second shear wall unit left wall limb; 211. horizontal reinforcing steel bars; 212. vertical reinforcing steel bars; 22. a second shear wall unit right wall limb; 221. horizontal reinforcing steel bars; 222. vertical reinforcing steel bars; 3. an inner arch type coupling beam; 31. horizontal reinforcing steel bars; 32. hooping; 4. a lamination layer; 41. a lower lamination layer; 42. an upper lamination layer; 5. a vertical connecting member; 51. lower I-shaped steel; 52. upper I-shaped steel; 53. a horizontal steel plate; 6. a horizontal connecting member; 61. a transverse steel plate; 62. a connecting sleeve; 63. and connecting the reinforcing steel bars.
Detailed Description
As shown in fig. 1, the invention provides an assembly type double-limb shear wall with an inner arch connecting beam, which comprises a first shear wall unit 1, a second shear wall unit 2, an inner arch connecting beam 3, a laminated layer 4, a vertical connecting member 5 and a horizontal connecting member 6.
As shown in fig. 1 to 3, the first shear wall unit 1 is an L-shaped wall limb, and is composed of a first shear wall unit left wall limb 11 and a first shear wall unit right wall limb 12, the first shear wall unit left wall limb 11 and the first shear wall unit right wall limb 12 are placed at intervals along the horizontal direction, the interval length is smaller than the span of the inner arch connecting beam 3, and horizontal reinforcing bars 111, 121 and vertical reinforcing bars 112, 122 are arranged inside; the second shear wall unit 2 is a rectangular wall limb and consists of a second shear wall unit left wall limb 21 and a second shear wall unit right wall limb 22, the second shear wall unit left wall limb 21 and the second shear wall unit right wall limb 22 are arranged at intervals along the horizontal direction, are positioned on the same vertical axis with the first shear wall unit left wall limb 11 and the first shear wall unit right wall limb 12, and are internally provided with horizontal reinforcing steel bars 211 and 221 and vertical reinforcing steel bars 212 and 222; the first shear wall unit 1 and the second shear wall unit 2 are connected through a vertical connecting member 5.
As shown in fig. 2 to 4, the vertical connecting member comprises an upper i-shaped steel 52, a lower i-shaped steel 51 and a middle horizontal steel plate 53, wherein the lower i-shaped steel 51 is arranged on both sides of the left and right limbs 11 and 12 of the first shear wall unit and extends out of the tops of the left and right limbs of the first shear wall unit; the upper I-shaped steel 52 is arranged on two sides of the left and right limbs 21 and 22 of the second shear wall unit and extends out of the bottoms of the left and right limbs of the second shear wall unit. The upper and lower i- sections 52, 51 are secured together by a horizontal steel plate 53.
As shown in fig. 5 and 6, the inner arched coupling beam 3 is a superposed beam, the bottom of which is arc-shaped and arched towards the inside of the coupling beam; the inner arch type coupling beam 3 is internally provided with a horizontal steel bar 31 and a stirrup 32; the horizontal connecting member 6 is composed of a transverse steel plate 61 and a connecting sleeve 62; the transverse steel plates 61 are two trapezoidal steel plates and are respectively arranged at two ends of the inner arch type coupling beam 3, and the connecting sleeves 62 are arranged at two inner sides of the inner arch type coupling beam 3; the transverse steel plate 61 is welded with the I-shaped steel 51 at the lower part of the first shear wall unit, the connecting steel bars 63 are inserted into the connecting sleeves 62 to be fixedly connected, and the connecting steel bars and the horizontal steel bars in the first shear wall unit form a lap joint length meeting the construction requirement.
As shown in fig. 7, the laminated layer 4 includes two lower support legs and an upper panel, and is formed by concrete poured into the gaps between the first shear wall unit and the second shear wall unit, and the inner arched coupling beam.
The assembling method of the assembling type double-limb shear wall with the inner arch connecting beam comprises the following steps:
firstly, prefabricating a vertical connecting member 5 and a horizontal connecting member 6;
and secondly, placing the vertical connecting members 5 in the first shear wall unit 1 and the second shear wall unit 2 for pouring in a prefabrication factory to form the first shear wall unit 1 with the vertical connecting members 5 and the second shear wall unit 2 with the vertical connecting members 5, and placing the horizontal connecting members 6 at two ends of the inner arch type connecting beam 3 for pouring to form the inner arch type connecting beam 3 with the horizontal connecting members 6.
Thirdly, arranging two wall limbs of the first shear wall unit 1 at intervals along the horizontal direction on a construction site, wherein the interval space is smaller than the span of the inner arch type coupling beam 3; conveying the inner arch type coupling beam 3 between two wall limbs of the first shear wall unit 1; two wall limbs of the second shear wall unit 2 correspond to two wall limbs of the first shear wall unit 1 up and down, and the H-shaped steel 52 at the middle upper part of the second shear wall unit 2 is welded with the H-shaped steel 51 at the middle lower part of the first shear wall unit 1 through a horizontal steel plate 53; and welding a transverse steel plate 61 in the inner arch type coupling beam 3 with the lower I-shaped steel 51 in the first shear wall unit 1, inserting a connecting steel bar 63 into a connecting sleeve 62 for connection, and forming a lap joint length meeting the construction requirement with the horizontal steel bar in the left wall limb of the first shear wall unit and the horizontal steel bar in the right wall limb of the first shear wall unit.
And fourthly, after the first shear wall unit 1, the inner arch type coupling beam 3 and the second shear wall unit 2 are hoisted in place, concrete is poured on the position of the laminated layer 4, when pouring is carried out, firstly, templates are erected on the lower two supporting legs 41, concrete pouring is carried out, after the concrete of the lower two supporting legs 41 is initially set, templates are erected on the upper panel 42, concrete pouring is carried out, and the first shear wall unit 1, the second shear wall unit 2 and the inner arch type coupling beam 3 are connected into a whole.
Claims (8)
1. The utility model provides an assembly type double-limb shear wall of in-band arch formula is roof beam even which characterized in that: including first shear force wall unit, second shear force wall unit, interior hunch formula even roof beam, superimposed sheet, vertical connecting elements and horizontally connect the component, first shear force wall unit corresponds from top to bottom with second shear force wall unit and passes through vertical connecting elements connects, links the roof beam through horizontally connect component and interior hunch formula between the first shear force wall unit of two limbs and is connected, leaves the clearance between first shear force wall unit and the second shear force wall unit, has poured into the concrete in the clearance and forms the superimposed sheet.
2. The fabricated twin shear wall with an intrados coupling beam of claim 1, wherein: the vertical connecting component comprises upper I-shaped steel, lower I-shaped steel and a middle steel plate, and the lower I-shaped steel is arranged on two sides of the first shear wall unit and extends out of the top of the first shear wall unit; the upper I-shaped steel is arranged on two sides of the second shear wall unit and extends out of the bottom of the second shear wall unit, and the steel plate is welded to the top of the lower I-shaped steel.
3. The fabricated twin shear wall with an intrados coupling beam of claim 1, wherein: the horizontal connecting component comprises a transverse steel plate and a connecting sleeve, the transverse steel plate and the connecting sleeve are arranged on two sides of the inner arch type connecting beam, the transverse steel plate is welded with I-shaped steel in the first shear wall unit, and the connecting sleeve is connected with horizontal steel bars in the first shear wall unit.
4. The fabricated twin shear wall with an intrados coupling beam of claim 1, wherein: the first shear wall unit is two L-shaped wall limbs, the second shear wall unit is two rectangular wall limbs, and concrete is poured into gaps among the L-shaped wall limbs, the rectangular wall limbs and the inner arch type connecting beams to form a laminated layer formed by the lower two supporting legs and the upper panel.
5. The fabricated twin shear wall with an intrados coupling beam of claim 1, wherein: the I-shaped steel in the first shear wall unit and the I-shaped steel in the second shear wall unit are vertically arranged and are positioned on the same vertical axis.
6. The fabricated twin shear wall with an intrados coupling beam of claim 1, wherein: the bottom of the inner arch type coupling beam is in an inwards concave arc shape, and horizontal steel bars and stirrups are arranged inside the coupling beam.
7. The fabricated twin shear wall with an intrados coupling beam of claim 1, wherein: the laminated layer comprises two lower supporting legs and an upper panel and is composed of concrete poured in a gap formed by the first shear wall unit, the second shear wall unit and the inner arch type connecting beam.
8. An assembly method of an assembly type double-limb shear wall with an inner arch connecting beam comprises the following steps:
firstly, prefabricating a vertical connecting component and a horizontal connecting component;
secondly, placing the vertical connecting members in the first shear wall unit and the second shear wall unit for pouring to form a first shear wall unit with the vertical connecting members and a second shear wall unit with the vertical connecting members; placing the horizontal connecting members at two ends of the inner arch type coupling beam for pouring to form the inner arch type coupling beam with the horizontal connecting members;
thirdly, arranging two wall limbs of the first shear wall unit at intervals along the horizontal direction, wherein the interval space is smaller than the span of the inner arch type connecting beam, and arranging the inner arch type connecting beam between the two wall limbs of the first shear wall unit; two wall limbs of the second shear wall unit correspond to two wall limbs of the first shear wall unit up and down, and the top steel plate of the I-shaped steel in the second shear wall unit is welded with the top steel plate of the I-shaped steel in the first shear wall unit; welding a transverse steel plate in the inner arch type coupling beam with the I-shaped steel in the first shear wall unit, and connecting a transverse steel bar in the first shear wall unit with the inner arch type coupling beam through a connecting sleeve;
and fourthly, pouring concrete into gaps formed among the first shear wall units, the second shear wall units and the inner arch type connecting beams to form a laminated layer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010486873.3A CN111734010B (en) | 2020-06-02 | 2020-06-02 | Assembled double-limb shear wall with inner arch type connecting beam and assembling method |
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| CN202010486873.3A CN111734010B (en) | 2020-06-02 | 2020-06-02 | Assembled double-limb shear wall with inner arch type connecting beam and assembling method |
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Cited By (2)
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| CN112681530A (en) * | 2021-01-06 | 2021-04-20 | 三东筑工（德州）有限公司 | In-plane connecting structure of beam and shear wall and construction method |
| CN113323188A (en) * | 2021-04-26 | 2021-08-31 | 广东现代建筑设计与顾问有限公司 | Multi-layer outer-wrapped steel beam concrete combined coupling beam |
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| CN113323188A (en) * | 2021-04-26 | 2021-08-31 | 广东现代建筑设计与顾问有限公司 | Multi-layer outer-wrapped steel beam concrete combined coupling beam |
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| CN111734010B (en) | 2024-05-28 |
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