CN109208785B - Assembled superposed structure system - Google Patents

Abstract

The invention discloses a prefabricated composite structure system, which includes vertical connecting members and horizontal connecting members. Both the vertical connecting members and the horizontal members include prefabricated shear walls and prefabricated floor slabs. The upper and lower end faces and the left and right end faces of the prefabricated shear wall are four There are four shear wall connection end faces. The front, rear, left and right end faces of the prefabricated floor slabs are four floor slab connection end faces. The precast shear walls include hollow precast stacked concrete shear walls and solid precast concrete shear walls. The floor slab connection end faces, shear Several anchoring steel bars are provided on the connection end faces of the force walls, and the anchoring steel bars are annular anchoring steel bars or/and bent anchoring steel bars. The invention designs a variety of prefabricated shear walls to match two different prefabricated floor slabs to form an assembled composite structural system with various matching methods. It has ingenious structural design, high strength, simple process and high construction efficiency.

Description

Prefabricated composite structure system

Technical field

The present invention relates to the technical field of prefabricated building construction, and in particular to the prefabricated composite structure system.

Background technique

Prefabricated shear wall structure is a type of prefabricated concrete structure, which is defined as a prefabricated concrete structure in which the main stress-bearing components shear walls, beams, and slabs are partially or entirely composed of prefabricated concrete components. When the traditional prefabricated structure is connected vertically, a ring buckle system is used to connect the upper and lower walls. After the upper and lower walls are in place, horizontal steel bars need to be inserted. The horizontal steel bars will be blocked every time they pass through a certain distance, requiring workers to perform time-consuming and laborious work. Manual adjustment makes installation very difficult and construction efficiency low; in addition, when traditional prefabricated structures are connected vertically and horizontally, the construction joints are exposed to the outside, seriously affecting the waterproofing performance, integrity and structural strength.

Contents of the invention

In view of the shortcomings in the above background technology, the present invention proposes a prefabricated composite structure system and an installation method thereof, which solves the problems of complex structure, high construction difficulty, lack of flexibility in assembly methods, lack of integrity and poor waterproof performance of existing prefabricated shear walls. technical issues.

The technical solution of the present invention is realized as follows: the assembled composite structural system includes vertical connecting members and horizontal connecting members. Both the vertical connecting members and the horizontal members include prefabricated shear walls and prefabricated floor slabs. The upper and lower parts of the prefabricated shear walls The end faces and left and right end faces are four shear wall connection end faces, and the front and rear left and right end faces of the prefabricated floor slabs are four floor slab connection end faces. The prefabricated shear walls include hollow prefabricated laminated concrete shear walls and solid precast concrete shear walls. The floor plate connection end face and the shear wall connection end face are both provided with several anchoring steel bars, and the anchoring steel bars are annular anchoring steel bars or/and bent anchoring steel bars.

Furthermore, the circular anchoring steel bars and bent anchoring steel bars are full-length steel bars that pass vertically through the thin shear wall or prefabricated floor slab, and the circular anchoring steel bars and bent anchoring steel bars are full-length steel bars with the ends exposed in the concrete. , setting full-length steel bars can not only save processes and steel bar materials, but also enhance structural strength.

Further, the prefabricated floor slabs are provided with truss bars, and the truss bars are divided into two types, one is a truss bar of equal height, and the other is a truss bar of equal height at intervals.

Furthermore, the bending angle of the end of the bent anchoring steel bar is 135°. The special angle setting of 135° can cooperate with each other more reliably and facilitate the fixation of horizontal steel bars.

The hollow prefabricated composite concrete shear wall includes two pages of symmetrically arranged thin shear walls. The two pages of thin shear walls are connected by truss steel bars. The thin shear walls can not only meet the strength requirements of splicing, but also facilitate the installation of thin shear walls. Concrete poured inside.

The four floor connection end faces of the prefabricated floor slabs are each provided with several annular anchoring steel bars or are provided with several bent anchoring steel bars. The bent anchoring steel bars are provided to facilitate the insertion of horizontal steel bars and vertical steel bars during vertical and horizontal connections. Straight steel bars and circular anchoring steel bars can not only save the process and steel bar materials, but also enhance the structural strength.

One way is that the four shear wall connection end faces of the hollow precast composite concrete shear wall or the solid precast concrete shear wall are all provided with several bending anchoring steel bars, and all are provided with bending anchoring steel bars to facilitate vertical installation. Horizontal steel bars or vertical steel bars are interspersed when connecting directly or horizontally.

One way is to set the four shear wall connection end faces of the hollow precast composite concrete shear wall or the solid precast concrete shear wall to several annular anchoring steel bars, all of which are provided with annular anchoring steel bars, which can save processes and steel bars. The materials used can also enhance the structural strength.

One way is that the upper end surface of the hollow precast stacked concrete shear wall or solid precast concrete shear wall is set with a number of annular anchoring steel bars, and the lower end surface of the hollow precast stacked concrete shear wall or solid precast concrete shear wall is The end face is set as several bent anchoring steel bars or several ring-shaped anchoring steel bars.

One way is that the lower end surface of the hollow precast stacked concrete shear wall or solid precast concrete shear wall is set with a number of annular anchoring steel bars, and the upper end surface of the hollow precast stacked concrete shear wall or solid precast concrete shear wall is The end face is set as several bent anchoring steel bars or several ring-shaped anchoring steel bars.

The present invention designs a variety of prefabricated shear walls to match two different prefabricated floor slabs to form a prefabricated composite structural system, which can be arbitrarily matched according to actual needs. It has ingenious structural design, high strength, simple process and high construction efficiency. When using hollow prefabricated composite concrete shear walls, they are not only easy to hoist and easy to splice and install, but also prefabricated assembly and wet operations are carried out at the same time, fully ensuring integrity and structural strength. Moreover, the construction joints are located inside the thin shear wall, which simplifies the construction process and effectively improves the waterproofing capacity of the structure. This prefabricated ring-bar buckle superimposed structure makes full use of the prefabricated wall itself as a formwork. After the concrete of the hollow part of the prefabricated wall on the same floor is poured, it can form a whole, effectively improving the integrity and seismic performance of the structure, and integrating The construction joints between floors are left at a specified height (10~20cm from the top of the prefabricated thin shear wall 1-1), which can greatly improve the waterproof performance of the structure itself. The use of solid precast concrete shear walls can reduce wet work processes while meeting the needs of vertical and horizontal connections. Setting up circular anchoring steel bars can not only save processes or steel bar materials, but also enhance structural strength. Bend anchoring steel bars are provided to facilitate the insertion of horizontal steel bars or vertical steel bars when making vertical connections or horizontal connections.

Description of drawings

Figure 1 is a schematic diagram of a hollow precast composite concrete shear wall using all circular anchoring steel bars;

Figure 2 is a schematic diagram of the hollow precast composite concrete shear wall using all bent anchoring steel bars;

Figure 3 is a schematic diagram of a hollow precast composite concrete shear wall in the form of an upper ring and a lower bend;

Figure 4 is a schematic diagram of a hollow precast composite concrete shear wall in the form of an upper bend and a lower ring;

Figure 5 is a schematic diagram of a solid precast concrete shear wall using all ring-anchored steel bars;

Figure 6 is a schematic diagram of a solid precast concrete shear wall using all bent anchoring steel bars;

Figure 7 is a schematic diagram of a solid precast concrete shear wall using an upper ring and a lower bend;

Figure 8 is a schematic diagram of a solid precast concrete shear wall in the form of an upper bend and a lower ring;

Figure 9 is a schematic diagram of all precast floor slabs using circular anchoring steel bars;

Figure 10 is a schematic diagram of all precast floor slabs using bent anchoring steel bars;

Figure 11 is a schematic diagram of two types of truss reinforcement in precast floor slabs.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without exerting creative efforts fall within the scope of protection of the present invention.

Embodiment 1, a prefabricated composite structural system, including vertical connecting members and horizontal connecting members. Both the vertical connecting members and the horizontal members include prefabricated shear walls and prefabricated floor slabs. The upper and lower end faces and left and right end faces of the prefabricated shear wall are four There are two shear wall connection end faces, and the front, rear, left and right end faces of the prefabricated floor slab are four floor slab connection end faces. The precast shear walls include two categories, one is the hollow precast laminated concrete shear wall 1, and the other is the solid precast concrete shear wall 4. The floor connecting end faces and the shear wall connecting end faces are provided with several anchoring steel bars. The anchoring steel bars include two types, one is annular anchoring steel bars 2-2, and the other is a folded anchoring steel bar 2-1. 1 The bending angle of the end of the bending anchoring steel bar 2-1 is 135°.

The circular anchoring steel bars 2-2 and the bent anchoring steel bars 2-1 are full-length steel bars 2 that pass vertically through the prefabricated shear wall or prefabricated floor slab 3, and the circular anchoring steel bars 2-2 and the bent anchoring steel bars 2-1 is the end of the full-length steel bar 2 exposed in the concrete. The setting of the full-length steel bar 2 can not only reduce the manufacturing process, but also ensure the structural strength.

The prefabricated floor slab 3 is provided with truss bars. As shown in Figure 11, the truss bars are equal-height truss bars 3-1 or spaced equal-height truss bars 3-2. Two types of truss bars can be provided to meet construction uses with different strength requirements. .

The hollow prefabricated composite concrete shear wall 1 includes two pages of symmetrically arranged thin shear walls 1-1. The two pages of thin shear walls 1-1 are connected by truss steel bars 2-3. When the upper and lower pages are hollow prefabricated After the superimposed concrete shear walls 1 are butt-jointed and installed, concrete can be poured between the two thin shear walls 1-1. The thin shear wall 1-1 can be used as a formwork and is integrated with the poured concrete. It can not only ensure the structural strength, but also control the position of the connecting joints to ensure good waterproof and seismic performance.

Further, as shown in Figure 10, the floor connection end faces of the prefabricated floor slabs 3 are provided with several bent anchoring steel bars 2-1; as shown in Figure 9, the floor connection end faces of the prefabricated floor slabs 3 are provided with several 2-2 circular anchoring steel bars. The four shear wall connection end faces of the hollow precast composite concrete shear wall 1 are also provided with several bent anchoring steel bars 2-1, as shown in Figure 2; the four shear wall connection end faces of the solid precast concrete shear wall 4 The connection end faces of each shear wall are also set as annular anchoring steel bars 2-2, as shown in Figure 1.

Regardless of whether the precast shear wall is a hollow precast composite concrete shear wall 1 or a solid precast concrete shear wall 4, it can be matched by the annular anchoring steel bars 2-2 or the bent anchoring steel bars 2-1 on its upper and lower end surfaces. When making a vertical connection, the matching annular anchoring steel bars 2-2 are reinforced by horizontal steel bars, and when making a horizontal connection, the matching ring-shaped anchoring steel bars 2-2 are reinforced by vertical steel bars. The precast floor slab 3 is vertically connected to the precast shear wall through the bending anchoring steel bars 2-1 or annular anchoring steel bars 2-2 on the connecting end. The bending anchoring steel bars on the precast floor slab 3 can be connected to the bending anchorage on the precast shear wall. The steel bars can also be matched with the annular anchoring steel bars on the precast shear wall. The annular anchoring steel bars on the precast floor slab 3 can be matched with the bending anchoring steel bars on the precast shear wall. They can also be matched with the ring anchored steel bars on the precast shear wall. Anchor steel bars match.

Embodiment 2, prefabricated composite structural system, as shown in Figure 3, the upper end surface of the hollow precast composite concrete shear wall 1 is provided with a number of annular anchoring steel bars 2-2, the hollow precast composite shear wall The lower end face of the wall 1 is set with several bent anchoring steel bars 2-1; as shown in Figure 7, the upper end face of the solid precast concrete shear wall 4 is set with several annular anchoring steel bars 2-2. The lower end face of the shear wall 4 is provided with several bent anchoring steel bars 2-1.

Other structures of this embodiment are the same as Embodiment 1.

Embodiment 3, prefabricated composite structural system, as shown in Figure 4, the upper end surface of the hollow precast composite concrete shear wall 1 is set with a number of bent anchoring steel bars 2-1, and the hollow precast composite shear wall The lower end face of the force wall 1 is set with several annular anchoring steel bars 2-2; as shown in Figure 8, the upper end face of the solid precast concrete shear wall 4 is set with several bent anchoring steel bars 2-1. The lower end face of the concrete shear wall 4 is provided with several annular anchoring steel bars 2-2.

Other structures of this embodiment are the same as Embodiment 1.

Everything that is not detailed in the present invention is common knowledge in the field.

The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the present invention. within the scope of protection.

Claims (1)

1. The utility model provides an assembled coincide structural system, includes vertical connecting element and horizontal connecting element, and vertical connecting element and horizontal member all include prefabricated shear wall and prefabricated floor, and the up-down terminal surface and the left and right sides terminal surface of prefabricated shear wall are four shear wall connection terminal surfaces, and the front and back of prefabricated floor is four floor connection terminal surfaces, its characterized in that: the precast shear wall comprises a hollow precast superposed concrete shear wall (1) and a solid precast concrete shear wall (4), wherein a plurality of anchoring steel bars are arranged on the connecting end face of the floor slab and the connecting end face of the shear wall, and the anchoring steel bars are annular anchoring steel bars (2-2) or/and bending anchoring steel bars (2-1);

the annular anchoring steel bars (2-2) and the bending anchoring steel bars (2-1) are all through-length steel bars (2) vertically penetrating through the precast shear wall or the precast floor slab (3), and the annular anchoring steel bars (2-2) and the bending anchoring steel bars (2-1) are the end parts of the through-length steel bars (2) exposed out of concrete;

truss ribs are arranged in the precast floor slabs (3), and the truss ribs are equal-height truss ribs (3-1) or interval equal-height truss ribs (3-2);

the bending angle of the end part of the bending anchoring steel bar (2-1) is 135 degrees;

the hollow precast superposed concrete shear wall (1) comprises two thin shear walls (1-1) which are symmetrically arranged, and the two thin shear walls (1-1) are connected through truss steel bars (2-3);

the floor slab connecting end face of the prefabricated floor slab (3) is provided with a plurality of bending anchor steel bars (2-1) or a plurality of annular anchor steel bars (2-2);

four shear wall connection end surfaces of the hollow precast superposed concrete shear wall (1) or the solid precast concrete shear wall (4) are respectively provided with a plurality of bending anchor steel bars (2-1); or the four shear wall connection end surfaces of the hollow precast superposed concrete shear wall (1) or the solid precast concrete shear wall (4) are respectively provided with a plurality of annular anchoring steel bars (2-2); or the upper end surfaces of the hollow precast laminated concrete shear wall (1) or the solid precast concrete shear wall (4) are respectively provided with a plurality of annular anchoring steel bars (2-2), and the lower end surfaces of the hollow precast laminated concrete shear wall (1) or the solid precast concrete shear wall (4) are respectively provided with a plurality of bending anchoring steel bars (2-1) or a plurality of annular anchoring steel bars (2-2); or the lower end surfaces of the hollow precast laminated concrete shear wall (1) or the solid precast concrete shear wall (4) are respectively provided with a plurality of annular anchoring steel bars (2-2), and the upper end surfaces of the hollow precast laminated concrete shear wall (1) or the solid precast concrete shear wall (4) are respectively provided with a plurality of bending anchoring steel bars (2-1) or a plurality of annular anchoring steel bars (2-2);

whether the precast shear wall is a hollow precast superposed concrete shear wall or a solid precast concrete shear wall, the precast shear wall is matched with the hollow precast superposed concrete shear wall through annular anchoring steel bars or bending anchoring steel bars on the upper end face and the lower end face of the precast shear wall; the annular anchoring steel bars matched with each other are reinforced through horizontal steel bars when vertical connection is carried out, and the annular anchoring steel bars matched with each other are reinforced through vertical steel bars when horizontal connection is carried out; the precast floor slab is vertically connected with the precast shear wall through bending anchor bars or annular anchor bars of the connecting end face, wherein the bending anchor bars on the precast floor slab are matched with the bending anchor bars on the precast shear wall or are matched with the annular anchor bars on the precast shear wall, and the annular anchor bars on the precast floor slab are matched with the bending anchor bars on the precast shear wall or are matched with the annular anchor bars on the precast shear wall.