CN206599882U - Embedded individual layer steel plate concrete combined shear wall - Google Patents

Abstract

The utility model relates to an embedded single-layer steel plate-concrete combined shear wall, which relates to the technical field of building construction. Aiming at the problem that the quality of existing composite shear walls is difficult to guarantee. It includes several sections of shear steel plates that are connected; steel mesh enclosed outside the shear steel plates; and a concrete layer covering the shear steel plates and steel mesh; the steel mesh includes side steel mesh on both sides of the shear steel plates One and the side vertical steel mesh two, the side vertical steel mesh one and the shear steel plate are integrally prefabricated, and the prefabricated side vertical steel mesh two is fixedly connected with the shear steel plate.

Description

Embedded single-layer steel plate-concrete composite shear wall

technical field

The utility model relates to the technical field of building construction, in particular to an embedded single-layer steel plate-concrete composite shear wall.

Background technique

At present, the number of super high-rise buildings at home and abroad is increasing, and the complex super high-rise buildings with a height of more than 300m have higher and higher requirements for the mechanical performance of the structural system and components. The steel plate-concrete composite shear wall is composed of inner-filled steel plates and reinforced concrete slabs, which are connected by studs. It can give full play to the advantages of steel and concrete, and maintain high ductility while improving the bearing capacity of components. , can effectively reduce the cross-sectional area of the wall and save construction space, so it is increasingly favored by owners and designers. There are three main types of steel plate-concrete composite shear walls, namely single-sided steel plate-concrete composite shear walls, double-sided steel plate-concrete composite shear walls, and embedded single-layer steel plate-concrete composite shear walls. Among them, the embedded single-layer steel plate-concrete composite shear wall has excellent seismic performance and fire protection performance at the same time, so it can be widely used in engineering.

As shown in Figure 1, the construction process of the existing embedded single-layer steel plate-concrete composite shear wall is as follows: first, the shear steel plate 1 is hoisted, fixed and connected, and then the steel bars 2 on both sides, the end steel bars and the Tie the bars, and finally seal the mold and pour the concrete 3. The construction process has the following defects: manual binding of steel bars one by one on site, heavy workload, high labor intensity, low construction efficiency, and long construction period; moreover, a large number of steel bars need to be piled up on the construction site, the formwork has a large stacking load, high safety risks, and civilized The construction level is low.

The embedded single-layer steel plate-concrete composite shear wall made by the above construction process is prone to deformation during hoisting and welding due to the small out-of-plane stiffness of the shear steel plate; in addition, the reinforcement mesh is densely arranged and complicated, making it difficult to bind on site Large, resulting in poor installation accuracy and difficult to guarantee the quality of the project.

Contents of the invention

For the existing embedded single-layer steel plate-concrete composite shear wall, the shear steel plate is easy to deform, the installation accuracy of the steel mesh is poor, and the project quality is difficult to guarantee. The purpose of this utility model is to provide an embedded single-layer steel plate-concrete composite shear wall. The shear steel plate and the side-standing steel mesh on one side are prefabricated as a whole and then hoisted, which improves the processing accuracy and connection accuracy of the steel bars. , not only guarantee the quality of the project, but also improve the construction efficiency.

The technical scheme adopted by the utility model to solve its technical problems is: a single-layer steel plate-concrete composite shear wall is embedded, which includes several sections of shear steel plates connected; A steel mesh fixed to the shear steel plate; and a concrete layer covering the shear steel plate and the steel mesh; 2. Wherein, the first lateral steel mesh is integrally prefabricated with the shear steel plate, and the prefabricated second vertical steel mesh is fixedly connected to the shear steel plate.

Preferably, several steel bar positioning brackets are fixed vertically on the shear steel plate, and one of the side standing steel meshes is fixed to the steel bar positioning brackets.

Preferably, the steel bar positioning bracket is composed of a vertical bar and at least two "ten" shaped positioning frames fixed on the vertical bar, wherein, one positioning frame is fixed to the shear steel plate, and the other positioning frame It is fixedly connected with the side-standing steel mesh.

Preferably, it also includes several oblique reinforcing ribs, one end of the oblique reinforcing ribs is fixed on the reinforcing bar positioning bracket, and the other end of the oblique reinforcing ribs is fixed on the shear steel plate.

Preferably, the horizontal welds between adjacent shear steel plates in each section are connected by single-sided groove welding.

Preferably, the positions of the horizontal joints of the first side-standing steel mesh, the second side-standing steel mesh and the shear steel plate are staggered.

Preferably, the side-standing steel mesh 1, the side-standing steel mesh 2 and the reserved steel mesh are connected by a steel bar sleeve, and the side-standing steel mesh 1, the side-standing steel mesh 2 and the shear The connection between the force plates is connected by spot welding.

Preferably, a number of horizontal stirrups are tied to the joint area of the side-standing reinforcement mesh 1, the side-standing reinforcement mesh 2 and the reserved reinforcement mesh, and the side-standing reinforcement mesh 1 and the side-standing reinforcement mesh 2 It is also connected with the shear steel plate through several tie bars.

The effect of the utility model is that: the single-layer steel plate-concrete composite shear wall embedded in the utility model, the shear steel plate and the side-standing steel mesh on one side are prefabricated and processed by the factory as a whole, and are located on the other side of the shear steel plate The second side-standing steel mesh is also prefabricated by the factory. The two are hoisted to the construction site and then assembled into an embedded single-layer steel plate-concrete composite shear wall. Since the above components are all prefabricated by the factory, the shear steel plate and the side The vertical steel mesh is prefabricated as a whole and then hoisted, which can avoid the deformation of the shear steel plate during the hoisting process; moreover, the prefabricated processing reduces the workload of on-site steel bar binding, greatly improves the processing accuracy and connection accuracy of the steel bar, thus ensuring engineering quality.

Description of drawings

Fig. 1 is the structural representation of the existing embedded single-layer steel plate-concrete composite shear wall;

Fig. 2 is a structural schematic diagram of installing a reinforcing bar positioning bracket on a shear steel plate according to an embodiment of the present invention;

Fig. 3 is a structural schematic diagram of a steel bar positioning bracket according to an embodiment of the present invention;

Fig. 4 is a structural schematic diagram of installing a reinforcing bar limiting plate on a shear steel plate according to an embodiment of the present invention;

Fig. 5 is a structural schematic diagram of a steel bar limiting plate according to an embodiment of the present invention;

Fig. 6 is a structural schematic diagram of setting vertical steel bars on a shear steel plate according to an embodiment of the present invention;

Fig. 7 is a structural schematic diagram of setting transverse steel bars on a shear steel plate according to an embodiment of the present invention;

Fig. 8 is a schematic diagram of the structure after the steel bar limiting plate is removed in an embodiment of the utility model;

Fig. 9 is a schematic structural view of a prefabricated shear steel plate and a side-standing steel mesh 1 in an embodiment of the present invention;

10 to 12 are schematic diagrams of each step in the construction method of an embedded single-layer steel plate-concrete composite shear wall according to an embodiment of the present invention.

detailed description

The embedded single-layer steel plate-concrete composite shear wall proposed by the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. According to the following description and claims, the advantages and features of the utility model will be more clear. It should be noted that all the drawings are in very simplified form and use inaccurate scales, which are only used to facilitate and clearly illustrate the purpose of the embodiment of the present utility model.

In conjunction with Fig. 9, the embedded single-layer steel plate-concrete composite shear wall 100 of the present utility model is illustrated. Reinforcing mesh; and the concrete layer (not shown in the figure) that covers shearing steel plate 10 and reinforcing mesh; Above-mentioned reinforcing mesh comprises the side erecting reinforcement mesh one 21 and the side erecting reinforcement mesh two 22 that are positioned at the shearing force steel plate 10 both sides, Wherein, the side standing steel mesh 1 21 is integrally prefabricated with the shear steel plate 10 , and similarly, the side standing steel mesh 2 22 prefabricated by the factory is fixedly connected with the shear steel plate 10 . The embedded single-layer steel plate-concrete composite shear wall 100, the shear steel plate 10 and the side vertical steel mesh 1 21 on one side are prefabricated by the factory as a whole, and the side vertical steel mesh 2 on the other side of the shear steel plate 10 22 is also prefabricated by the factory, and the two are hoisted to the construction site and then assembled into an embedded single-layer steel plate-concrete composite shear wall 100. 1-21 is hoisted after overall prefabrication, which can avoid deformation of the shear steel plate 10 during hoisting; moreover, the prefabrication process reduces the workload of on-site steel bar binding, greatly improves the processing accuracy and connection accuracy of the steel bar, thereby ensuring Engineering Quality.

Please continue to refer to FIG. 9, the above-mentioned embedded single-layer steel plate-concrete composite shear wall 100 also includes a number of steel bar positioning brackets 23, and the steel bar positioning brackets 23 are vertically fixed to the shear steel plate 10, and the side-standing steel mesh-21 is positioned with the steel bar. The support 23 is fixedly connected, that is to say, the side-standing steel mesh-21 is connected as a whole with the shear steel plate 10 through the steel bar positioning bracket 23; The integrality of the side-standing steel mesh-21 connection can effectively prevent its relative deformation during processing, hoisting or connection, which will cause difficulties in docking.

As shown in Figures 2 and 3, the above-mentioned steel bar positioning bracket 23 is composed of a vertical bar 231 and at least two "ten"-shaped positioning frames 232 fixed on the vertical bar 231. In this embodiment, three vertical bars 231 are preferably arranged. The positioning frames 232, wherein, one positioning frame 232 is fixedly connected to the shear steel plate 10, and the other two positioning frames 232 are fixedly connected to the side-standing reinforcement mesh-21 provided with multi-layer steel bars. The "ten"-shaped positioning frame 232 has two welding points with each steel bar, which makes the connection more firm and makes the prefabricated structure more stable.

Furthermore, as shown in Figure 9, in order to ensure the stability of the supporting structure of the steel bar positioning bracket 23, the above-mentioned embedded single-layer steel plate-concrete composite shear wall 100 also includes a number of oblique reinforcing ribs 27, the oblique reinforcing ribs 27 One end is affixed to the steel bar positioning bracket 23 , and the other end is affixed to the shear steel plate 10 .

In this embodiment, the division of the shear steel plate 10 is determined comprehensively considering the hoisting capacity of the tower crane, the formwork equipment layout of the core tube construction steel platform, the horizontal and vertical construction sections of the structure, and the stress of the structure. Considering the horizontal and vertical connection modes between the shear steel plates 10 from the perspective of force and construction, the reserved holes of the shear steel plates 10 are designed to include concrete pouring and tamping flow holes, horizontal reinforcement pair piercing holes, formwork pair tension bolt holes, The stirrups are connected in a planar arrangement including sleeves, etc.; the horizontal welds between the adjacent shear steel plates 10 of each section are connected by single-sided groove welding, and the single-sided groove welding method can ensure that the bottom of the steel plate is welded through, ensuring The mechanical strength of the weld seam, and the opening direction of the groove of the shear steel plate 10 is on one side of the side-standing steel mesh 222, so as to facilitate on-site welding work.

Preferably, the positions of the horizontal joints of the side-standing steel mesh 1, the side-standing steel mesh 2 22 and the shear steel plate 10 are staggered, so that the welding points on both sides of the shear steel plate 10 are staggered, so that welding deformation can be reduced and the shear force can be guaranteed. The structural strength of the steel plate 10.

The above-mentioned side-standing reinforcement mesh 1 21 and side-standing reinforcement mesh 2 22 are equipped with at least 2 layers of reinforcement. In this embodiment, 2 to 6 layers of reinforcement are preferred to ensure the structural strength of the steel plate-concrete composite shear wall. The specific number of layers needs to be determined according to the actual situation. The embedded single-layer steel plate-concrete composite shear wall depends on the design requirements and is not limited here.

The construction process of the single-layer steel plate-concrete composite shear wall embedded in the utility model is illustrated below in conjunction with Fig. 10 to Fig. 12:

1. As shown in Figure 10, hoist the prefabricated shear steel plate 10 and the side-standing reinforcement mesh 121, connect the joints of the side-standing reinforcement mesh 1 21 and the reserved reinforcement mesh 31 and connect them with a reinforcement sleeve, and at the same time, temporarily Fixing the shear steel plate 10 and the reserved shear steel plate 30 to prevent the shear steel plate 10 from being deformed during hoisting, and then connecting the shear steel plate 10 and the reserved shear steel plate 30 horizontally;

2. As shown in Figure 11 and Figure 12, hoist the prefabricated side-standing reinforcement mesh 2 22 and set it on the other side of the shear steel plate 10, and make the side-standing reinforcement mesh 2 22 respectively connect with the reserved reinforcement mesh 31 and The shear steel plates 10 are connected to each other, thereby forming a fixedly connected shear steel plate 10 and a steel mesh;

3. As shown in FIG. 12 , the mold is sealed outside the shear steel plate 10 and the reinforcement mesh and the concrete layer 40 is poured to obtain an embedded single-layer steel plate-concrete composite shear wall 100 .

Firstly, through integral prefabrication of the shear steel plate 10 and the side vertical steel mesh 1 21 located on one side, hoisting and transporting to the site for installation and fixing, and then hoisting and transporting the integrally prefabricated side vertical steel mesh 2 22 to the shear steel plate The other side of 10 is installed and fixed, so as to form the shear steel plate 10 and the steel mesh that are fixedly connected as one. This construction method simplifies the connection process between the shear steel plate 10 and the steel mesh, and obviously reduces the workload of on-site steel bar binding. It greatly improves the connection accuracy of steel bars, improves the efficiency of on-site construction, and shortens the construction period; moreover, this construction method avoids the disorderly stacking of formwork and steel bars on site, and improves the level of safe and civilized construction on site.

In the first step above, two adjacent sections of shear steel plates 10 are connected by single-sided groove welding. This welding method can ensure the penetration of the bottom of the steel plates and ensure the mechanical strength of the weld.

In order to strengthen the overall rigidity of the shear steel plate 10 and the reinforcement mesh, during the forming process, the side-standing reinforcement mesh 1 21, the side-standing reinforcement mesh 2 22 and the reserved reinforcement mesh 31 are connected by a reinforcement sleeve, and the side-standing reinforcement mesh 1 21. The connection between the side-standing reinforcement mesh 2 22 and the shear steel plate 10 adopts spot welding.

Above-mentioned step 2 also comprises, at the joint area of side vertical steel bar one 21, side vertical steel bar two 22 and reserved steel bar 31, binds some horizontal stirrups, strengthens the stable connection of steel bar and reserved steel bar 31; The first vertical steel mesh 21 , the second vertical steel mesh 22 and the shear steel plate 10 are also connected by a number of tie bars to enhance the integrity of the connection between the side vertical steel mesh 21 , 22 and the shear steel plate 10 .

More preferably, the joints of the above-mentioned side-standing steel mesh one 21, side-standing steel mesh two 22 and the shear steel plate 10 are staggered, so that the welding spots on both sides of the shear steel plate 10 are staggered, which can reduce welding deformation and ensure that the shear steel plate 10 structural strength.

In the above-mentioned step one, the prefabrication steps of the shear steel plate 10 and the side-standing steel mesh-21 are as follows:

a, as shown in Figure 2, make the shear steel plate 10 stand sideways or lie flat on the horizontal plane and fix it temporarily, and vertically fix several rows of steel bar positioning brackets 23 along the length direction of the shear steel plate 10; The width direction of force steel plate 10 is provided with some reinforcing bar limiting plates 24;

b. As shown in Figure 6, several layers of vertical reinforcing bars 25 are arranged along the length direction of the shear steel plate 10, and the vertical reinforcing bars 25 are affixed to the reinforcing bar positioning bracket 23, and the vertical reinforcing bars 25 run through the reinforcing bar limiting plate 24, such as As shown in Fig. 7, several layers of transverse reinforcing bars 26 are arranged along the width direction of the shear steel plate 10;

c. As shown in FIG. 8 , after the above-mentioned vertical steel bar 25 and horizontal steel bar 26 are fixedly connected, the steel bar limiting plate 24 is removed.

First, fix the reinforcing bar positioning bracket 23 and the reinforcing bar limiting plate 24 on the side-standing shear steel plate 10, then install the vertical reinforcing bar 25 and the transverse reinforcing bar 26 according to the positioning of the reinforcing bar positioning bracket 23 and the reinforcing bar limiting plate 24, which not only ensures The installation accuracy of the steel mesh improves the construction efficiency, and the shear steel plate is prefabricated with 10 sides vertically, the construction occupies a small area, and the operation is convenient and quick.

The above-mentioned reinforcing bar limiting plate 24 is installed on the two ends and the middle part of the shear steel plate 10 in a welding manner. For the convenience of positioning and passing through the vertical reinforcing bar 25, several through holes 241 are offered on the reinforcing bar limiting plate 24; It has the function of accurately positioning and fixing the vertical steel bar 25, and strengthening the connection between the steel bar mesh and the shear steel plate 10. In this embodiment, the thickness of the steel bar limiting plate 24 is 4-10mm, and the number is 2-4 pieces. The specific thickness and quantity of the limiting plate 24 should be determined according to the overall rigidity when the shear steel plate 10 and the steel mesh are hoisted.

It should be pointed out that the above-mentioned embodiment is only an example, and is not limited thereto. The embedded single-layer steel plate-concrete composite shear wall is not only suitable for the construction of the in-line steel plate concrete composite shear wall, but also applicable In T-shaped and L-shaped steel plate concrete composite shear walls.

The above description is only a description of the preferred embodiments of the present utility model, not any limitation to the scope of the present utility model. Any changes and modifications made by those skilled in the field of the present utility model according to the above disclosed content all belong to the scope of the claims.

Claims (8)

1. a kind of embedded individual layer steel plate-concrete combined shear wall, it is characterised in that including；

Some sections of shearing steel plates being connected；

Enclose in the bar-mat reinforcement affixed outside the shearing steel plate and with the shearing steel plate；

And the concrete layer of the cladding shearing steel plate and the bar-mat reinforcement；

The bar-mat reinforcement includes the edge-on bar-mat reinforcement one and edge-on bar-mat reinforcement two for being located at the shearing steel plate both sides, wherein, it is described Edge-on bar-mat reinforcement one and the shearing integral prefabricated processing of steel plate, the edge-on bar-mat reinforcement two of prefabricated processing are consolidated with the shearing steel plate Connect.

2. embedded individual layer steel plate-concrete combined shear wall according to claim 1, it is characterised in that：The shearing steel Vertical affixed some reinforcement positioning supports on plate, the edge-on bar-mat reinforcement one and the reinforcement positioning support are affixed.

3. embedded individual layer steel plate-concrete combined shear wall according to claim 2, it is characterised in that：The reinforcing bar is determined Position support be made up of montant and at least two " ten " font locating racks being fixed on the montant, wherein, locating rack and The shearing steel plate is affixed, and another locating rack and the edge-on bar-mat reinforcement one are affixed.

4. embedded individual layer steel plate-concrete combined shear wall according to claim 2, it is characterised in that：Also include some Oblique reinforcement, one end of the oblique reinforcement is fixed on the reinforcement positioning support, the oblique reinforcement it is another End is fixed on the shearing steel plate.

5. the embedded individual layer steel plate-concrete combined shear wall according to any one of Claims 1-4, it is characterised in that：Respectively Side seam between the Duan Xianglin shearing steel plate is welded to connect using single groove.

6. the embedded individual layer steel plate-concrete combined shear wall according to any one of Claims 1-4, it is characterised in that：Institute Stagger the horizontal joint position for stating edge-on bar-mat reinforcement one, the edge-on bar-mat reinforcement two and the shearing steel plate.

7. the embedded individual layer steel plate-concrete combined shear wall according to any one of Claims 1-4, it is characterised in that：Institute State and straight screw sleeve connection, the edge-on reinforcing bar are used between edge-on bar-mat reinforcement one, the edge-on bar-mat reinforcement two and reserved steel bar net Connection between net one, the edge-on bar-mat reinforcement two and the shearing steel plate is connected using spot welding.

8. embedded individual layer steel plate-concrete combined shear wall according to claim 7, it is characterised in that：The edge-on steel Some horizontal hoops of joint area colligation of muscle net one, the edge-on bar-mat reinforcement two and the reserved steel bar net, and it is described edge-on Also connected between bar-mat reinforcement one, the edge-on bar-mat reinforcement two and the shearing steel plate by some tension ribs.