Assembled building structure system
Technical field:
the invention relates to the field of building structure design, in particular to an assembled building structure system.
The background technology is as follows:
in recent years, with the increasing national policy support for modernization of the building industry, the fabricated building market is rapidly developing. Three basic structural systems of reinforced concrete shear wall structures, steel structures (including light steel structures and heavy steel structures), wood structures and the like appear.
Currently, the three basic structural systems have respective defects: the wood structure is limited by materials and fireproof performance, so that the wood structure is only applied to a small range in the aspect of landscape house construction of cities and scenic spots; the reinforced concrete shear wall structure is suitable for building small high-rise buildings below 40 floors; the heavy steel structure is suitable for large-scale super high-rise building, and the light steel structure can be used for low-rise villa construction, but because the structure is complicated, the construction difficulty is big, can't realize industrial production, and spreading value is not big.
The market is in urgent need of an assembled structural building system suitable for the construction of new rural residences or low-rise commercial villas below 4 floors.
The invention comprises the following steps:
in order to overcome the defects of the prior art, the invention aims to provide an assembled building structure system which is suitable for building houses below 4 floors and solves the industrialization problem of small-scale low-rise buildings.
The technical scheme of the invention is as follows:
the assembled building structure system comprises a foundation, a wall body and floor boards, and is characterized in that the foundation is formed by pouring reinforced concrete on a construction site;
the wall body is prefabricated and formed in a factory by adopting a steel frame structure, and adjacent wall bodies are connected by adopting angle iron connecting plates at L-shaped, T-shaped and cross-shaped connecting nodes;
the lowest wall body is connected with the foundation, and a floor plate is connected between the upper wall body and the lower wall body and at the top of the uppermost wall body;
the floor plate is in a composite floor plate form, 30% -40% of the lower part in the thickness direction is poured in a factory, and 70% -60% of the upper part is cast in situ in a construction site.
The assembled building structure system is characterized in that: the foundation and the wall body, the upper wall body and the lower wall body are connected in a composite connection mode of the grouting sleeve and the threaded sleeve, namely the threaded sleeve is arranged at the upper part of the foundation or the lower wall body, and the grouting sleeve is arranged at the position corresponding to the threaded sleeve at the lower part of the wall body or the upper wall body arranged on the foundation;
when in construction, the threaded end of the threaded rod connecting piece is screwed into the threaded sleeve of the foundation or the lower wall body, one end of the unprocessed thread is inserted into the grouting sleeve of the upper wall body, and high-strength grouting cement is poured from the grouting opening until solidification is achieved after the position of the wall body is corrected.
The assembled building structure system is characterized in that the foundation is a reinforced concrete foundation and comprises foundation ribs and threaded sleeves, wherein the foundation ribs are distributed in concrete, the foundation ribs are transversely arranged in parallel in multiple layers and are longitudinally arranged at intervals in the concrete, and each foundation rib is welded and connected with multiple layers of foundation ribs.
The assembled building structure system is characterized in that: the wall body comprises a steel frame formed by welding square pipes, left and right side frames of the steel frame are used as main supports, and auxiliary supports are arranged in the middle of the upper and lower side frames;
wall gluten is arranged between the opposite surfaces of the upper side frame and the lower side frame of each side frame of the steel frame, the wall gluten is a reinforcing mesh, and the steel frame and the wall gluten are integrally cast into a concrete wall;
the wall body is equipped with screw sleeve in last frame, and the lower frame is equipped with the grout sleeve.
The assembled building structure system is characterized in that: the screw sleeve and the grouting sleeve of the wall body are welded with the steel frame square pipe and are connected with the steel bar net in the wall body in a binding mode.
The assembled building structure system is characterized in that: the wall body thread sleeve and the wall body grouting sleeve are symmetrically distributed on two sides of the auxiliary support.
The assembled building structure system is characterized in that: connecting blocks are arranged in the main support and auxiliary support square tubes of the wall steel frame, angle iron connecting plate grooves are reserved in the wall when pouring is carried out on a production line, and connecting bolts sequentially penetrate through the angle iron connecting plates and the main support and auxiliary support square tubes of the wall steel frame and extend into the connecting blocks when in site construction, so that the adjacent horizontal and longitudinal walls are connected together, and cement pouring cast-in-place blocks are carried out in the reserved angle iron connecting plate grooves to seal the angle iron connecting plates; waterproof inserts are also arranged between the end faces of the adjacent walls at the connecting nodes.
The assembled building structure system is characterized in that: the floor board adopts a composite floor board form, the metal skeleton of the floor board is corrugated, the lower 40% of the floor board in the thickness direction of the floor board is poured in a factory, and the upper 60% of the floor board is cast in situ on a construction site.
The beneficial effects of the invention are as follows:
1. the invention organically combines the steel structure and the concrete structure, has simple structure and convenient installation, and the prefabrication rate can reach more than 85 percent;
2. the steel structural component is integrally poured into the wall body, fireproof and rust-proof treatment is not needed, and later maintenance is not needed, so that the production and use costs are effectively reduced;
3. the cast-in-place waterproof insert at the joint of the outer wall body effectively prevents the leakage of the outer wall body, does not need to worry about aging problems compared with the use of waterproof adhesive tapes, and can realize the same service life as a building;
4. the invention adopts modularized design, is convenient for using the mould to organize large-scale industrialized production on a production line, has high mould utilization rate, high production efficiency and low construction cost;
5. the foundation is connected with the wall body or the upper and lower layers of the wall body in a combined connection mode of a threaded sleeve and a grouting sleeve, and the threaded sleeve is welded on a steel frame and can be used as a lifting hole; the method is convenient for site operation and can ensure the integrity in the height direction;
6. the roof adopts the laminated floor structure, has good integrity and can effectively prevent interlayer leakage.
Description of the drawings:
fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic diagram of the connection of the foundation of the present invention to a wall (the lowest wall).
Fig. 3 is an enlarged view of a portion of fig. 2 in accordance with the present invention.
Fig. 4 is a schematic view of the steel frame structure of the wall body of the present invention.
Fig. 5 is a schematic view of a wall-surface reinforcement structure of the wall body of the present invention.
Fig. 6 is a schematic view of a wall structure according to the present invention.
Fig. 7 shows an interlayer connection structure of upper and lower wall bodies according to the present invention.
Fig. 8 is an enlarged view of a portion of fig. 7 in accordance with the present invention.
Fig. 9 is a schematic view of the floor board (without casting) structure of the present invention.
Fig. 10 is a schematic top view of a connection node of the present invention.
Fig. 11 is a partial enlarged view of the connection node "L" type a of the present invention.
Fig. 12 is a partial enlarged view of the connection node "T" type B1 of the present invention.
Fig. 13 is a partial enlarged view of the connection node "T" type B2 of the present invention.
Fig. 14 is a partial enlarged view of a "cross" type C connection node of the present invention.
The specific embodiment is as follows:
referring to the drawings:
the assembled building structure system comprises a foundation 1, a wall body 2 and floor boards 3, wherein the foundation 1 is formed by pouring reinforced concrete on a construction site;
the wall body 2 is prefabricated and formed in a factory by adopting a steel frame structure, and adjacent wall bodies are connected by adopting angle iron connecting plates 4 at connecting nodes of L-shaped A, T-shaped B (two B1 and B2) and C;
the lowermost wall body 2 is connected with the foundation 1, and floor boards 5 are connected between the upper wall body and the lower wall body and at the top of the uppermost wall body;
the floor plate 3 is in a laminated floor plate form, 30% -40% of the lower part in the thickness direction is poured in a factory, and 70% -60% of the upper part is cast in situ in a construction site.
The foundation 1 and the wall body (bottommost wall body) and the upper wall body and the lower wall body are connected in a composite connection mode of a grouting sleeve 5 and a threaded sleeve 6, namely the threaded sleeve 6 is arranged at the upper part of the foundation 1 or the lower wall body, and the grouting sleeve 5 is arranged at the position corresponding to the threaded sleeve at the lower part of the wall body or the upper wall body arranged on the foundation 1;
during construction, the threaded end of the threaded rod connecting piece 7 is screwed into the threaded sleeve 6 of the foundation or the lower wall body, one end of the unprocessed thread is inserted into the grouting sleeve 5 of the upper wall body, and high-strength grouting cement 8 is poured from the grouting opening until solidification is achieved after the position of the wall body is corrected.
The foundation 1 is a reinforced concrete foundation and comprises foundation ribs 1-2 and threaded sleeves 6 which are distributed in the concrete 1-1, wherein the foundation ribs 1-2 are transversely arranged in parallel in multiple layers in the concrete 1-1, and the threaded sleeves 6 are longitudinally arranged at intervals and are welded with the foundation ribs 1-2 in multiple layers.
The wall body 2 comprises a steel frame 2-1 formed by welding square pipes, the left side frame and the right side frame of the steel frame 2-1 are main supports 9, and auxiliary supports 10 are arranged in the middle of the upper side frame and the lower side frame;
wall ribs 2-2 are arranged on each side frame of the steel frame and between opposite surfaces of the upper frame and the lower frame, the wall ribs 2-2 are steel bar meshes, and the steel frame 2-1 and the wall ribs 2-2 are integrally cast into concrete 2-3 to form a wall;
the wall body 2 is provided with a thread sleeve 6 at the upper frame and a grouting sleeve 5 at the lower frame.
The screw sleeve 6 and the grouting sleeve 5 of the wall body 2 are welded with the steel frame square pipe and are connected with the steel bar net in the wall body 2 in a binding way.
The screw sleeve 7 and the grouting sleeve 8 of the wall body 2 are symmetrically distributed on two sides of the auxiliary support 7.
Connecting blocks 11 are arranged in the square tubes of the main support 9 and the auxiliary support 10 of the steel frame of the wall body 2, angle iron connecting plate grooves 12 are reserved in the wall body 2 when pouring is carried out on a production line, connecting bolts 13 sequentially penetrate through the angle iron connecting plates 4, the main support 9 and the auxiliary support 10 square tubes of the steel frame of the wall body 2 and extend into the connecting blocks 11 to connect the adjacent wall bodies transversely and longitudinally, and cement pouring cast-in-place blocks 16 are reserved in the angle iron connecting plate grooves 12 to seal the angle iron connecting plates 4; a waterproof insert 15 is also arranged between the end faces of the adjacent walls at the connecting node.
The main support 6 and the auxiliary support 7 are provided with wall connecting holes 14, and reserved connecting plate grooves 12 are arranged at the positions of the wall connecting holes 14.
The floor plate 3 is in a composite floor plate form, the metal skeleton 3-1 of the floor plate is corrugated, the lower 40% of the floor plate in the thickness direction of the floor plate is poured with concrete 3-2 in a factory, and the upper 60% of the floor plate is poured with concrete in situ at a construction site.