Connecting structure of shear wall and laminated slab

Abstract

The utility model discloses a connecting structure of a shear wall and a laminated slab. The connecting structure comprises the shear wall, the laminated slab and a first connecting rib, the shear wall is provided with angle steel, the connecting face of the angle steel is used for being connected and matched with the shear wall, and the bearing face of the angle steel is used for connecting and bearing laminated slabs. The side face of the shear wall is provided with anti-shear grooves located above the angle steel, opposite to the end face of the laminated slab and arranged at intervals. A steel sleeve is arranged in the shear wall, and the end opening of the steel sleeve is communicated with the bottom of the anti-shear groove; one end of the first connecting rib can be arranged in the steel sleeve in a penetrating mode, and the first connecting rib extends outwards and is located on the bottom plate of the laminated slab. According to the technical scheme, after the laminated slab and the shear wall are installed, one end of the first connecting rib is inserted into the steel sleeve, the other end of the first connecting rib is located on the laminated slab, and then concrete pouring is utilized to enable the laminated slab and the first connecting rib to be solidified into a whole, so that the construction speed is increased, and the engineering quality is improved; and the situation that connecting ribs reserved by a traditional shear wall hinder assembly of the shear wall and the laminated slab is avoided.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated building technology, and in particular to a connection structure between a shear wall and a composite slab. Background Technology

[0002] In the field of prefabricated buildings, shear walls and composite slabs are used. Shear walls often need to be connected and assembled with composite slabs. In actual use, shear walls are reserved with connecting bars to cooperate with composite slabs. However, during the assembly process, the connecting bars will hinder the alignment and assembly of shear walls and composite slabs. This not only affects the construction speed but also reduces the quality of the project. Utility Model Content

[0003] In view of this, the present invention provides a connection structure between a shear wall and a composite slab, which avoids the influence of traditional connecting bars on the placement of the composite slab after hoisting, thereby improving construction speed and project quality.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A connection structure between a shear wall and a composite slab includes: a shear wall, a composite slab, and a first connecting bar;

[0006] The shear wall is provided with angle steel, the connecting surface of the angle steel is used to connect and cooperate with the shear wall, and the bearing surface of the angle steel is used to connect and support the composite plate;

[0007] The shear wall has shear grooves on its side, located above the angle steel, and the shear grooves are opposite to and spaced apart from the end face of the composite plate.

[0008] The shear wall is provided with a steel sleeve, and the end of the steel sleeve is connected to the bottom of the shear groove; one end of the first connecting bar can be inserted into the steel sleeve, and the other end of the first connecting bar extends outward and is located on the bottom plate of the composite slab.

[0009] Preferably, the shear wall is further provided with a second connecting bar, the second connecting bar having a bent end extending away from the shear wall, so that the second connecting bar has a bent state and a horizontal state;

[0010] In the bent state, the second connecting bar is bent upwards at an angle to the joint surface; in the horizontal state, the second connecting bar is perpendicular to the joint surface; wherein, the second connecting bar is disposed above the shear groove, and the joint surface is the joint plane between the shear wall and the composite slab.

[0011] Preferably, the second connecting bar includes a first segment, a second segment, and a third segment connected in sequence, wherein the second segment is disposed through the shear wall and the penetration direction is the thickness direction of the shear wall;

[0012] In the bent state, the first segment can be bent upward relative to the second segment, and the third segment can be bent upward relative to the second segment; in the horizontal state, the first segment is perpendicular to the first mating surface, and the third segment is perpendicular to the second mating surface.

[0013] The composite slabs are arranged symmetrically about the shear wall, the first joint surface is the joint plane between the shear wall and the composite slab on one side, and the second joint surface is the joint plane between the shear wall and the composite slab on the other side.

[0014] Preferably, the steel sleeve is installed through the shear wall, and the penetration direction is the thickness direction of the shear wall;

[0015] The first connecting rib, which is inserted through the steel sleeve, extends outward at both ends. One end of the first connecting rib extends outward above the bottom plate of one side of the composite plate, and the other end of the first connecting rib extends outward above the bottom plate of the other side of the composite plate.

[0016] Preferably, the prestressing tendons of the composite slab are inserted into the steel sleeve.

[0017] Preferably, the shear wall is provided with positioning bars, which are used to position the second connecting bar at a certain position.

[0018] Preferably, the shear wall has shear grooves on its opposite sides.

[0019] Preferably, angle steel is provided on the opposite sides of the shear wall.

[0020] Preferably, the connecting surface of the angle steel is welded to the outer side of the flange plate of the shear wall.

[0021] Preferably, there are multiple angle steels, and the multiple angle steels are arranged along the length of the shear wall.

[0022] As can be seen from the above technical solution, the connection structure between the shear wall and the composite slab provided by this utility model utilizes the cooperation of the first connecting bar and the steel sleeve. After the composite slab and the shear wall are installed, one end of the first connecting bar is inserted into the steel sleeve, and the other end is located on the composite slab. Then, concrete is poured to solidify the composite slab and the first connecting bar into one piece. This improves the construction speed, improves the project quality, and avoids the traditional shear wall pre-reserved connecting bars hindering the assembly of the shear wall and the composite slab.

[0023] This connection structure also utilizes the bendable design of the second connecting bar to further avoid the traditional shear wall pre-reserved connecting bars hindering the assembly of the shear wall and composite slab. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a cross-sectional view of a shear wall;

[0026] Figure 2 A cross-sectional view from one perspective, showing the combination of shear walls and composite slabs;

[0027] Figure 3 A cross-sectional view from another perspective to complement the shear wall and composite slab;

[0028] Figure 4 Complete cross-sectional view of the connection between this shear wall and composite slab.

[0029] The meanings of the various reference numerals in the figure are as follows:

[0030] 1 is a shear wall, 2 is the inner steel web of the shear wall, 3 is a shear groove, 4 is a steel sleeve, 5 is the second connecting bar, 6 is the positioning bar, 7 is the angle steel, 8 is the first connecting bar, 9 is the composite slab, 10 is the prestressed tendon, 11 is the truss bar, 12 is the composite slab steel pipe, and 13 is the top reinforcing bar of the slab. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] The connection structure between the shear wall and the composite slab provided in this embodiment of the utility model includes: a shear wall 1, a composite slab 9, and a first connecting bar 8;

[0033] Shear wall 1 and composite slab 9. Shear wall 1 is equipped with angle steel 7. The connecting surface of angle steel 7 is used for connection and mating with shear wall 1, and the bearing surface of angle steel 7 is used for connecting and bearing composite slab 9. Figure 1 As shown;

[0034] Shear wall 1 has shear grooves 3 on its side, located above angle steel 7. These grooves are positioned opposite and spaced apart from the end faces of the composite slab 9. Later, concrete is used to fill the gap between the shear grooves 3 and the end faces of the composite slab 9, thus enhancing the shear resistance of both shear wall 1 and composite slab 9. Figure 1 As shown;

[0035] The shear wall 1 is provided with a steel sleeve 4, and the end of the steel sleeve 4 is connected to the bottom of the shear groove 3; one end of the first connecting bar 8 can be inserted into the steel sleeve 4, and the other end of the first connecting bar 8 extends outward and is located on the bottom plate of the composite slab 9; it can be understood that before the composite slab 9 and the shear wall 1 are installed, the first connecting bar 8 is not inserted into the steel sleeve 4, and after the composite slab 9 and the shear wall are installed, the first connecting bar 8 is inserted into the steel sleeve 4.

[0036] In actual construction, after the composite slab 9 and shear wall 1 are installed, one end of the first connecting bar 8 is inserted into the steel sleeve 4, and the other end of the first connecting bar 8 is positioned on top of the composite slab 9. Then, concrete is poured to solidify the composite slab 9 and the first connecting bar 8 into one piece. This improves construction speed and project quality, and avoids the traditional method of using pre-reserved connecting bars in shear walls to hinder the assembly of the shear wall and composite slab.

[0037] In an optional embodiment, the shear wall 1 is further provided with a second connecting bar 5, the second connecting bar 5 having a bent end extending away from the shear wall 1, so that the second connecting bar 5 has a bent state and a horizontal state.

[0038] In the bent state, the second connecting rib 5 bends upwards and forms an angle with the mating surface, such as... Figure 2 As shown, in the horizontal state, the second connecting rib 5 is perpendicular to the mating surface, as... Figure 4 As shown; wherein, the second connecting bar 5 is disposed on the shear groove 3, and the mating surface is the mating plane between the shear wall 1 and the composite slab 9.

[0039] In the actual construction process, before the composite slab 9 and shear wall 1 are installed (e.g., in the factory or on the construction site), the second connecting bar 5 is bent upwards and in a bent state, such as... Figure 2 As shown, to avoid the bent end of the second connecting bar 5 being located within the shear groove 3, thus hindering the installation of the composite slab 9 and the shear wall 1; after the composite slab 9 and the shear wall 1 are installed, when laying the top reinforcing steel bar 13 of the composite slab, the second connecting bar 5 is bent downwards so that the plane containing the second connecting bar 5 is parallel to the horizontal plane, as shown. Figure 4 As shown, concrete is then poured to solidify the second connecting bar 5 and the composite slab 9 into one piece; this increases the on-site assembly speed, reduces on-site construction time, and further improves the quality of the project.

[0040] To optimize the above technical solution, a first connecting rib 8 is inserted into the steel sleeve 4 and fixed by injecting high-strength grout. It should be noted that there are multiple steel sleeves 4, and the spacing of the steel sleeves 4 is set according to the needs of the first connecting rib 8. It should also be noted that the first connecting rib 8 and the second connecting rib 5 are both connecting reinforcing bars.

[0041] Further optimization of the above technical solutions, such as Figure 2 As shown, the second connecting bar 5 includes a first segment, a second segment, and a third segment connected in sequence. The second segment is disposed through the shear wall 1, and the penetration direction is the thickness direction of the shear wall 1.

[0042] In the bent state, the first segment can be bent upward relative to the second segment (the first segment is the bending end), and the third segment can be bent upward relative to the second segment (the third segment is the bending end); in the horizontal state, the first segment is perpendicular to the first mating surface, and the third segment is perpendicular to the second mating surface.

[0043] Among them, the composite slab 9 is arranged symmetrically about the shear wall 1, the first joint surface is the joint plane between the shear wall 1 and the composite slab 9 on one side, and the second joint surface is the joint plane between the shear wall 1 and the composite slab 9 on the other side.

[0044] In the above technical solution, the composite slabs 9 located on both sides of the shear wall 1 can be fixed by the through-type setting of the second connecting bar 5, which improves efficiency and saves materials; at the same time, it can ensure the force balance on both sides of the shear wall 1 and improve the quality of the project.

[0045] To further optimize the above technical solution, the steel sleeve 4 is installed through the shear wall 1, and the penetration direction is the thickness direction of the shear wall 1.

[0046] The first connecting rib 8, which passes through the steel sleeve 4, extends outward at both ends. One end of the first connecting rib 8 extends outward onto one side of the composite plate 9, and the other end extends outward onto the other side of the composite plate 9. Figure 2 As shown.

[0047] In the above technical solution, by utilizing the through-hole setting of the steel sleeve 4, the composite slabs 9 located on both sides of the shear wall 1 can be fixed through a first connecting bar 8, which improves efficiency and saves materials.

[0048] In one of the alternative technical solutions, such as Figure 2 As shown, in order to improve the stability of the shear wall 1 and the composite slab 9 after installation, the prestressing tendons 10 of the composite slab 9 are inserted into the steel sleeve 4.

[0049] In one of the alternative technical solutions, such as Figure 2As shown, in order to avoid deviation in the installation position of the second connecting bar 5, a positioning bar 6 is provided in the shear wall 1. The positioning bar 6 is used to position the second connecting bar 5 at a certain position. Specifically, the extension direction of the positioning bar 6 is perpendicular to the extension direction of the second connecting bar 5.

[0050] In one of the alternative technical solutions, such as Figure 2 As shown, in order to improve work efficiency and the stability of the connection structure, shear grooves 3 are opened on the opposite sides of the shear wall 1 to enhance the shear resistance of the connection between the two sides of the shear wall 1 and the composite plate 9.

[0051] In one of the alternative technical solutions, such as Figure 2 As shown, in order to improve the stability of the installation of the composite slabs 9 on both sides, angle steel 7 is provided on the opposite sides of the shear wall 1. The installation of angle steel 7 eliminates the need for the traditional end support at the end of the shear wall 1, thus improving the installation speed.

[0052] In one alternative technical solution, the connecting surface of the angle steel 7 is welded to the outer side of the flange plate of the shear wall 1 to improve the strength of the angle steel 7 and the shear wall 1; specifically, the angle steel 7 is cast together when the shear wall 1 is prefabricated in the factory.

[0053] In one alternative technical solution, there are multiple angle steels 7, which are arranged along the length of the shear wall 1 to facilitate the installation of multiple composite slabs 9.

[0054] The technical features mentioned above, those to be mentioned below, and those shown individually in the accompanying drawings can be combined arbitrarily, provided that the combined technical features are not contradictory. All feasible combinations of features are the technical content explicitly described herein. Any one of the multiple sub-features contained in the same statement can be applied independently, without necessarily being applied together with other sub-features.

[0055] The following is a further description of this solution with reference to specific embodiments:

[0056] In one technical solution, the shear wall 1 is preferably a PEC shear wall, which is composed of a steel frame and concrete filled in the steel frame. The composite slab 9 is a prestressed concrete steel pipe truss composite slab, and the composite slab 9 is composed of a steel pipe truss and a prestressed concrete composite slab.

[0057] In one technical solution, after the composite slab 9 is accurately positioned, the first connecting bar 8 is inserted into the pre-reserved steel sleeve 4 of the shear wall 1, and then high-strength grout is injected for fixation. Then, the composite layer reinforcement of the composite slab is laid, and the second connecting bar 5 is bent downwards to return to its horizontal position. Figure 2 and Figure 3After the assembly is completed as shown, vertical connecting steel bars are laid on the upper surface of the bottom plate of the composite slab 9. These vertical connecting steel bars need to pass through the truss bars 11 and the steel pipes 12 of the composite slab 9. Then, bidirectional top reinforcing steel bars 13 are laid. After the bidirectional top reinforcing steel bars 13 are laid (that is, the lap of the top reinforcing steel bars 13 of the composite slab 9 is completed), the composite layer concrete is poured to connect the composite floor slab and the shear wall 1 into a whole.

[0058] This utility model has the following beneficial effects:

[0059] I. The connection structure between the shear wall and the composite slab in this application only requires reserving a second connecting bar on the shear wall. This avoids to some extent the impact of reserving connecting bars at the top and bottom of the slab on the hoisting and positioning of the composite slab, improves the on-site assembly speed, reduces on-site construction time, and provides technical assurance for installation quality.

[0060] Second, the angle steel embedded at the connection between the shear wall and the composite slab serves as the end support of the floor slab, greatly improving construction speed and ensuring accurate positioning due to factory prefabrication. Furthermore, this embedded angle steel can also serve as a permanent support, reinforcing the end support of the composite slab.

[0061] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0062] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A connection structure between a shear wall and a composite slab, characterized in that, include: Shear wall (1), composite slab (9) and first connecting bar (8); The shear wall (1) is provided with angle steel (7), the connecting surface of the angle steel (7) is used to connect and cooperate with the shear wall (1), and the bearing surface of the angle steel (7) is used to connect and support the composite plate (9). The shear wall (1) has a shear groove (3) on the side above the angle steel (7), and the shear groove (3) is opposite to and spaced apart from the end face of the composite plate (9). The shear wall (1) is provided with a steel sleeve (4), and the port of the steel sleeve (4) is connected to the bottom of the shear groove (3); one end of the first connecting bar (8) can be inserted into the steel sleeve (4), and the other end of the first connecting bar (8) extends outward and is located on the bottom plate of the composite plate (9).

2. The connection structure between the shear wall and the composite slab according to claim 1, characterized in that, The shear wall (1) is also provided with a second connecting bar (5), which has a bent end extending away from the shear wall (1) so that the second connecting bar (5) has a bent state and a horizontal state. In the bent state, the second connecting bar (5) bends upward and is set at an angle to the joint surface. In the horizontal state, the second connecting bar (5) is perpendicular to the joint surface. The second connecting bar (5) is set on the shear groove (3), and the joint surface is the joint plane between the shear wall (1) and the composite plate (9).

3. The connection structure between the shear wall and the composite slab according to claim 2, characterized in that, The second connecting bar (5) includes a first segment, a second segment and a third segment connected in sequence. The second segment is disposed through the shear wall (1) and the penetration direction is the thickness direction of the shear wall (1). In the bent state, the first segment can be bent upward relative to the second segment, and the third segment can be bent upward relative to the second segment; in the horizontal state, the first segment is perpendicular to the first mating surface, and the third segment is perpendicular to the second mating surface. The composite plate (9) is arranged symmetrically about the shear wall (1), the first joint surface is the joint plane between the shear wall (1) and the composite plate (9) on one side, and the second joint surface is the joint plane between the shear wall (1) and the composite plate (9) on the other side.

4. The connection structure between the shear wall and the composite slab according to claim 3, characterized in that, The steel sleeve (4) is installed through the shear wall (1) and the penetration direction is the thickness direction of the shear wall (1); The first connecting rib (8) that passes through the steel sleeve (4) extends outward at both ends. One end of the first connecting rib (8) extends outward and is located on the bottom plate of the composite plate (9) on one side. The other end of the first connecting rib (8) extends outward and is located on the bottom plate of the composite plate (9) on the other side.

5. The connection structure between the shear wall and the composite slab according to claim 2, characterized in that, The prestressed tendons (10) of the composite slab (9) are inserted into the steel sleeve (4).

6. The connection structure between the shear wall and the composite slab according to claim 2, characterized in that, The shear wall (1) is provided with positioning bars (6), which are used to position the second connecting bar (5) at a certain position.

7. The connection structure between the shear wall and the composite slab according to claim 1, characterized in that, The shear wall (1) has shear grooves (3) on its opposite sides.

8. The connection structure between the shear wall and the composite slab according to claim 1, characterized in that, Angle steel (7) is provided on the opposite sides of the shear wall (1).

9. The connection structure between the shear wall and the composite slab according to claim 1, characterized in that, The connecting surface of the angle steel (7) is welded to the outer side of the flange plate of the shear wall (1).

10. The connection structure between the shear wall and the composite slab according to any one of claims 1-9, characterized in that, There are multiple angle steels (7), and the multiple angle steels (7) are arranged along the length of the shear wall (1).

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