Fabricated anti-seismic wall

Abstract

According to the specific implementation mode, a prefabricated anti-seismic wall produced in a factory and a vertical post-pouring section poured in a construction site jointly form the prefabricated anti-seismic wall, and notches are formed in the bottom, adjacent to the vertical post-pouring section, of the prefabricated anti-seismic wall and the bottom of an edge component of the prefabricated anti-seismic wall. The upper-layer prefabricated anti-seismic wall stress vertical bars and the lower-layer prefabricated anti-seismic wall stress vertical bars are connected near the notches, edge member main stress vertical bars are arranged on the outer sides, close to the prefabricated anti-seismic wall edge members, of the prefabricated anti-seismic wall edge members, edge member erecting vertical bars are arranged on the inner sides of the prefabricated anti-seismic wall edge members, and pouring of post-pouring concrete in the notches is achieved through vertical post-pouring sections and edge member vertical holes. The implementation mode has the advantages that the prefabricated anti-seismic wall steel bars are directly connected through steel bar sleeve grouting connection, the stress performance is good, and on-site connection of the hollow superposed shear wall is simple, meanwhile, bin sealing operation is not needed, pressure grouting and post-pouring concrete pouring are concentrated, the number of vertical holes is greatly reduced, and the post-pouring concrete vibrating efficiency is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of construction, relates to an assembled concrete structure, and particularly relates to an assembled earthquake-resistant wall. Background Art

[0002] Prefabricated buildings are an important tool for realizing intelligent construction and the transformation and upgrading of the construction industry. At present, residential buildings mainly use prefabricated integral seismic wall structures. Prefabricated integral seismic walls are composed of prefabricated seismic walls and adjacent vertical post-cast sections. Prefabricated seismic walls use steel sleeve grouting to connect prefabricated seismic walls or hollow composite seismic walls. However, the above method usually has the following technical problems:

[0003] First, the construction site of the prefabricated seismic wall connected by steel sleeve grouting needs to be sealed and pressure grouting, which requires a lot of manual work, and the grouting quality control is difficult and difficult to visually inspect;

[0004] Second, the vertical reinforcement overlap area of ​​the edge components of the hollow composite shear wall with vertical holes is densely reinforced, requiring a large amount of steel. The post-cast concrete in the vertical holes is vibrated hole by hole, requiring a large amount of vibration, resulting in low efficiency in pouring the post-cast concrete.

[0005] Third, the hollow composite shear wall with continuous cavity only relies on steel bars to tie the precast concrete on both sides. The mold is prone to expansion during the pouring of the post-concrete, and it cannot be used for exterior walls with complex shapes such as bay windows. Utility Model Content

[0006] In order to overcome the shortcomings of the above-mentioned prior art, the utility model proposes an assembled seismic wall, which has the advantages of good stress-bearing performance of direct connection of prefabricated seismic wall steel bars through steel sleeve grouting connection and simple on-site connection of hollow composite shear wall, avoiding one or more problems of the prior art, such as large workload of on-site sealing operation, great difficulty in quality control of pressure grouting, dense steel bars and large amount of steel used in the vertical reinforcement overlap area of ​​edge components, large workload of vertical hole vibration, and easy expansion of mold when pouring post-poured concrete in continuous cavity.

[0007] Some embodiments of the utility model provide an assembled seismic wall, comprising a prefabricated seismic wall produced in a factory and a vertical post-cast section cast on a construction site, wherein a gap is reserved at the bottom of the prefabricated seismic wall adjacent to the vertical post-cast section and at the bottom of the edge component of the prefabricated seismic wall; when the gap is located at the edge component of the prefabricated seismic wall, the gap width is 0 to 5 cm larger than the width of the edge component of the prefabricated seismic wall, a double row of edge component main force-bearing vertical bars are arranged near the outer side of the edge component of the prefabricated seismic wall, a double row of edge component erection vertical bars are arranged on the inner side of the edge component of the prefabricated seismic wall, the edge component main force-bearing vertical bars, the edge component erection vertical bars and the edge component hoops The reinforcement cage of the edge component is composed of reinforcement bars, and the main load-bearing vertical reinforcements of the edge components of the upper and lower prefabricated seismic walls are connected in the notch of the upper prefabricated seismic wall; when the edge component of the prefabricated seismic wall is directly connected to the prefabricated seismic wall body, vertical holes of the edge component are arranged between the vertical reinforcements of the edge component of the prefabricated seismic wall, the vertical holes of the edge component penetrate along the height direction of the prefabricated seismic wall, and the bottoms of the vertical holes of the edge component are connected with the corresponding notches; when the notch is located in the prefabricated seismic wall body, the width of the notch is 20 to 50 cm, the vertical reinforcements of the upper and lower prefabricated seismic walls are overlapped and connected in the notch, and the top of the notch is 30 to 60 mm higher than the upper end of the vertical reinforcements of the lower prefabricated seismic wall body.

[0008] In some embodiments, the main load-bearing vertical reinforcement of the edge components of the upper and lower prefabricated seismic resistant walls are connected through an overflow pipe, which is made of a seamless steel pipe. The overflow pipe is connected to the main load-bearing vertical reinforcement of the edge components of the lower prefabricated seismic resistant wall by buckling or threaded engagement, and the overflow pipe is connected to the main load-bearing vertical reinforcement of the edge components of the upper prefabricated seismic resistant wall by the bonding effect of high-strength cement-based slurry.

[0009] Specifically, the height of the notch on one side adjacent to the vertical post-casting section or the vertical hole of the edge member is 2 to 10 cm greater than the height on the other side, and a slurry outlet is provided at the top of the notch on the side away from the vertical post-casting section or the vertical hole of the edge member. The slurry outlet is located on the prefabricated seismic wall, and the slurry outlet is connected to the notch.

[0010] Optionally, the lower end of the overflow pipe is located within the floor height range between the upper and lower prefabricated seismic walls, and the distance that the upper end of the overflow pipe protrudes from the top surface of the floor is not less than 2 cm.

[0011] In some embodiments, the cross section of the vertical hole of the edge member is elliptical, the length of the minor axis of the ellipse is 9-11 cm, the length of the major axis of the ellipse is 12-16 cm, and the direction of the minor axis of the ellipse is parallel to the thickness direction of the prefabricated seismic wall.

[0012] Specifically, the diameter of the edge member vertical reinforcement is 8mm or 10mm. Within the concrete range of the precast seismic wall, the edge member vertical reinforcement is located outside the corresponding edge member vertical hole. The edge member vertical reinforcement around the vertical hole of the edge member of the lower precast seismic wall is bent within the range of the top of the lower precast seismic wall and the floor height, and extends into the corresponding vertical hole of the edge member of the upper precast seismic wall to be overlapped and connected with the edge member vertical reinforcement of the upper precast seismic wall.

[0013] In particular, the total area of ​​the main load-bearing vertical reinforcement of the edge member and the vertical reinforcement of the overlapped edge member is designed and determined according to the bending bearing capacity requirements of the seismic wall.

[0014] In some embodiments, when the gap is adjacent to the vertical post-cast section and the gap is located within the range of the prefabricated seismic wall edge component, the width of the prefabricated seismic wall edge component is 20 to 32 cm, and the center distance between the main load-bearing vertical reinforcement of the prefabricated seismic wall edge component and the adjacent vertical post-cast section vertical reinforcement is not more than 30 cm.

[0015] In some embodiments, the edge member of the prefabricated seismic wall is directly connected to the wall body of the prefabricated seismic wall, and when the dimension of the concrete between the notch on one side of the vertical post-cast section and the vertical hole of the edge member along the width direction of the prefabricated seismic wall is greater than 40 cm, vertical holes in the wall body are arranged between the notch on one side of the vertical post-cast section and the vertical holes of the edge member, the vertical holes in the wall body are connected along the height direction of the prefabricated seismic wall, and the center distance between adjacent vertical holes in the wall body is 30 to 40 cm.

[0016] Optionally, the cross-section of the vertical hole in the wall is an ellipse, the length of the short axis of the ellipse is 9 to 11 cm, the length of the long axis of the ellipse is 14 to 21 cm, the direction of the short axis of the ellipse is parallel to the thickness direction of the prefabricated seismic wall, vertical wall reinforcements are arranged outside the vertical hole in the wall, the vertical wall reinforcements of the lower prefabricated seismic wall are bent within the range of the top of the lower prefabricated seismic wall and the floor height, and extend into the corresponding vertical hole in the wall of the upper prefabricated seismic wall and overlap and connect with the vertical wall reinforcements of the upper prefabricated seismic wall.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] (1) The horizontal joints of the prefabricated seismic wall of the utility model are filled with post-cast concrete, which avoids the complicated sealing operation of the existing steel sleeve grouting connection prefabricated seismic wall. The horizontal joints are easy to construct at the construction site and the quality control is simple.

[0019] (2) The main load-bearing vertical reinforcement of the edge member of the prefabricated seismic wall of the utility model is connected by a grouting pipe, which has the advantage of large allowable deviation of the existing steel sleeve grouting connection, and at the same time does not require pressure grouting, and the connection quality can be visually inspected.

[0020] (3) The utility model uses the vertical post-cast section adjacent to the precast seismic wall to fill the horizontal joints of the precast seismic wall. Compared with the existing hollow composite shear wall with vertical holes, the utility model can greatly reduce the number of vertical holes that need to be vibrated during the post-cast concrete pouring process. The post-cast concrete pouring efficiency is high, and the vertical holes have little effect on the pre-embedded pull holes and the like of the vertical post-cast section template.

[0021] (4) The prefabricated seismic wall of the utility model relies on concrete to realize the connection of prefabricated concrete on both sides of the vertical hole. Compared with the existing hollow composite shear wall with continuous cavity, it is not easy to expand the mold during the pouring of post-cast concrete, and it is suitable for exterior walls with complex shapes such as bay windows. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of some embodiments of the assembled seismic wall in the utility model.

[0024] Figure 2 for Figure 1 Cross-sectional view of section AA.

[0025] Figure 3 for Figure 1 Schematic diagram of the three-dimensional structure of the prefabricated seismic wall.

[0026] Figure 4 yes Figure 1 A partial enlarged view of B.

[0027] Figure 5 yes Figure 1 A partial enlarged view of C in the middle.

[0028] Figure 6 yes Figure 1 A partial enlarged view of D in the middle.

[0029] Figure 7 It is a schematic diagram of the local structure around the vertical holes in the wall body of some embodiments of the assembled seismic-resistant wall in the utility model.

[0030] In the figure: 1-prefabricated seismic wall; 11-edge member; 12-wall; 13-vertical hole of edge member; 14-vertical hole of wall; 15-main force-bearing vertical reinforcement of edge member; 16-vertical reinforcement of frame of edge member; 17-hoop reinforcement of edge member; 18-vertical reinforcement of wall; 19-slurry outlet; 2-vertical post-casting section; 21-horizontal connecting steel bar; 22-vertical post-casting section vertical reinforcement; 3-gap; 4-floor slab; 5-lower prefabricated seismic wall; 6-upper prefabricated seismic wall; 7-overflow pipe; 8-insulation board; 9-outer leaf wall. DETAILED DESCRIPTION

[0031] Embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as being limited to the embodiments described herein. On the contrary, the embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not intended to limit the scope of protection of the present invention.

[0032] Unless otherwise specified, the technical and scientific terms used in this document have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs; other experimental methods and technical means not specifically specified in this application refer to experimental methods and technical means commonly used by ordinary technicians in this field.

[0033] The utility model provides an assembled seismic wall, which has the advantages of good stress-bearing performance of direct connection of prefabricated seismic wall steel bars through steel sleeve grouting connection and simple on-site connection of hollow composite shear wall, and avoids the shortcomings of the prior art such as large workload of on-site sealing operation, great difficulty in quality control of pressure grouting, dense steel bars and large amount of steel used in the vertical reinforcement overlap area of ​​edge components, large workload of vertical hole vibration, and easy expansion of the mold when pouring post-poured concrete in continuous cavity.

[0034] refer to Figure 1 to Figure 3The utility model comprises a prefabricated seismic wall 1 produced in a factory and a vertical post-cast section 2 cast on the construction site, and the two are connected by edge member stirrups 17 or horizontal connecting steel bars 21, wherein a notch 3 is reserved at the bottom adjacent to the prefabricated seismic wall 1 and the vertical post-cast section 2 and at the bottom of the edge member 11 of the prefabricated seismic wall 1; when the notch 3 is located at the edge member 11 of the prefabricated seismic wall 1, the width of the notch 3 is 0 to 5 cm larger than the width of the edge member 11 of the prefabricated seismic wall 1, a double row of edge member main force-bearing vertical bars 15 are arranged near the outer side of the edge member 11 of the prefabricated seismic wall 1, and a double row of edge member erection vertical bars 16 are arranged on the inner side of the edge member 11 of the prefabricated seismic wall 1, and the edge member main force-bearing vertical bars 15 and the edge member erection vertical bars 16 are arranged at the inner side of the edge member 11 of the prefabricated seismic wall 1. The component stirrups 17 form an edge component steel cage, and the main force-bearing vertical reinforcements 15 of the edge components of the upper and lower prefabricated seismic walls are connected in the notch 3 of the upper prefabricated seismic wall 6; when the edge component 11 of the prefabricated seismic wall 1 is directly connected to the wall body 12 of the prefabricated seismic wall 1, the edge component vertical holes 13 are arranged between the vertical reinforcements 16 of the edge component of the prefabricated seismic wall 1, the edge component vertical holes 13 are penetrated along the height direction of the prefabricated seismic wall 1, and the bottom of the edge component vertical holes 13 is connected with the corresponding notch 3; when the notch 3 is located in the wall body 12 of the prefabricated seismic wall 1, the width n of the notch 3 is 20 to 50 cm, the wall body vertical reinforcements 18 of the upper and lower prefabricated seismic walls are overlapped and connected in the notch 3, and the top of the notch 3 is 30 to 60 mm higher than the upper end of the wall body vertical reinforcement 18 of the lower prefabricated seismic wall 5.

[0035] In the description of the present invention, it should be noted that the terms "upper floor" and "lower floor" are the actual positional relationship between the upper and lower floors in an actual building, and the terms "height direction", "width direction", "thickness direction", "upper end" and "lower end" are based on the orientation or positional relationship of the prefabricated seismic wall of the present invention when it is used. The above terms all restrict the orientation and structure of the prefabricated seismic wall of the present invention.

[0036] refer to Figure 1 to Figure 7 , showing the structural schematic diagrams of some embodiments of the utility model assembled earthquake-resistant wall. Figure 1 , Figure 2 As shown, the assembled seismic wall comprises a prefabricated seismic wall 1 produced in a factory and a vertical post-cast section 2 cast on the construction site. The prefabricated seismic wall 1 and the vertical post-cast section 2 are connected as a whole by steel bars and post-cast concrete to jointly resist external forces. Figure 1 , Figure 3 The bottom of the prefabricated seismic wall 1 adjacent to the vertical post-casting section 2 and the bottom of the edge member 11 of the prefabricated seismic wall 1 are both reserved with a notch 3, in which the vertical reinforcement of the lower prefabricated seismic wall 5 and the vertical reinforcement of the upper prefabricated seismic wall 6 are connected, and the floor slab 4 is between the lower prefabricated seismic wall 5 and the upper prefabricated seismic wall 6. It should be noted that Figure 1 to Figure 3The prefabricated earthquake-resistant wall shown is applied to the exterior wall of the building. The exterior side of the prefabricated earthquake-resistant wall is provided with an insulation board 8 and an exterior leaf wall 9. The insulation board 8 and the exterior leaf wall 9 can be used as an exterior formwork for pouring post-cast concrete in the gap 3.

[0037] refer to Figure 1 to Figure 4 , when the notch 3 is adjacent to the vertical post-casting section 2 and the notch 3 is within the range of the precast seismic wall edge member 11, the width m of the precast seismic wall edge member 11 is 20 to 32 cm, a double row of edge member main force-bearing vertical bars 15 are arranged near the outer side of the precast seismic wall edge member 11, and a double row of edge member erecting vertical bars 16 are arranged on the inner side of the precast seismic wall edge member 11, and the edge member main force-bearing vertical bars 15, the edge member erecting vertical bars 16 and the edge member stirrups 17 together form an edge member reinforcement cage; The main force-bearing vertical reinforcement 15 of the edge components of the upper and lower prefabricated seismic walls are connected in the notch 3 of the upper prefabricated seismic wall 6. The connection method is selected according to the construction process. In this embodiment, the overflow pipe 7 is used for connection; the vertical reinforcement 16 of the edge components of the upper and lower prefabricated seismic walls are not connected and do not participate in the structural force calculation. The center distance between the main force-bearing vertical reinforcement 15 of the edge components of the prefabricated seismic wall and the adjacent vertical post-casting section vertical reinforcement 22 is controlled to be no more than 30 cm, meeting the current industry standard "Technical Code for Concrete Structures of High-rise Buildings" JGJ 3-2010 for the structural requirements of the force-bearing vertical reinforcement of the edge components. It should be noted that "the outer side of the edge component of the prefabricated seismic wall" refers to the side of the edge component that is subjected to greater force under the action of the earthquake force, which is the side of the edge component away from the vertical post-casting section.

[0038] like Figure 4 As shown, the overflow pipe 7 is made of seamless steel pipe, and the overflow pipe 7 is connected to the main load-bearing vertical reinforcement 15 of the edge member of the lower prefabricated seismic wall 5 by buckling or threaded engagement, and the overflow pipe 7 is connected to the main load-bearing vertical reinforcement 15 of the edge member of the upper prefabricated seismic wall 6 by the bonding effect of high-strength cement-based slurry; the lower end of the overflow pipe 7 is located within the height range of the floor slab 4 between the upper and lower prefabricated seismic walls, and the distance that the upper end of the overflow pipe 7 protrudes from the top surface of the floor slab 4 is not less than 2 cm. While avoiding covering the overflow pipe 7 during the pouring of the concrete of the floor slab 4, the height of the gap 3 can be reduced, and the weakening of the periphery of the opening of the prefabricated seismic wall by the gap 3 is reduced, which is more suitable for the building exterior wall with a smaller height of the concrete part below the opening. In some embodiments, when the height of the concrete part below the opening is relatively large, the overflow pipe is completely set within the gap range to meet the construction requirements. Figure 4The opening of the middle overflow pipe 7 faces upward, and the mixed high-strength cement-based slurry is directly poured into the overflow pipe 7. During the installation of the upper prefabricated seismic wall 6, the main load-bearing vertical reinforcement 15 of the edge components is naturally inserted into the overflow pipe 7. After the high-strength cement-based slurry solidifies and reaches the design strength, the equal-strength connection of the main load-bearing vertical reinforcement 15 of the edge components of the upper and lower prefabricated seismic walls is achieved, avoiding the complicated sealing operation and post-pressure grouting operation of the existing steel sleeve grouting connection, without the need for special pressure grouting equipment, and the grouting quality can be visually inspected, and the quality is easy to control. In some embodiments, the length of the main load-bearing vertical reinforcement 15 of the edge components of the upper prefabricated seismic wall 6 inserted into the overflow pipe 7 is 8 to 10 times the diameter of the main load-bearing vertical reinforcement 15 of the edge components.

[0039] Generally speaking, the outer diameter of the overflow pipe 7 is 3 to 4 cm larger than the main load-bearing vertical reinforcement 15 of the connected edge member. Figure 4 As shown, the width of the notch 3 is 0 to 5 cm larger than the width of the prefabricated seismic wall edge component 11, that is, the notch 3 extends outward by 0 to 5 cm on the basis of the outer side of the prefabricated seismic wall edge component 11 to avoid interfering with the alignment installation of the overflow pipe 7 and the main load-bearing vertical reinforcement 15 of the edge component of the upper prefabricated seismic wall 6.

[0040] refer to Figure 1 to Figure 3 , Figure 5 When the prefabricated seismic wall edge member 11 is directly connected to the prefabricated seismic wall body 12, a notch 3 is reserved at the bottom of the prefabricated seismic wall edge member 11. The width of the notch 3 is 0 to 5 cm larger than the width of the prefabricated seismic wall edge member 11. A row of double-row edge member main force-bearing vertical bars 15 are arranged near the outer side of the prefabricated seismic wall edge member 11. Two rows of double-row edge member frame vertical bars 16 are arranged inside the prefabricated seismic wall edge member 11. The edge member main force-bearing vertical bars 15, the edge member frame vertical bars 16 and the edge member stirrups 17 are composed of The edge component reinforcement cage is formed; the edge component vertical hole 13 is set between the vertical reinforcement 16 of the two rows of edge components of the prefabricated seismic wall, the edge component vertical hole 13 is penetrated along the height direction of the prefabricated seismic wall, and the bottom of the edge component vertical hole 13 is connected with the corresponding notch 3, so that the post-poured concrete of the notch 3 can be poured from the top of the prefabricated seismic wall through the edge component vertical hole 13 on the construction site, avoiding the complicated sealing warehouse and pressure grouting operations of the prior art; the main force-bearing vertical reinforcement 15 of the edge components of the upper and lower prefabricated seismic walls are connected by overflow pipes 7 in the notch 3 of the upper prefabricated seismic wall 6. It should be noted that "the outer side of the edge component of the prefabricated seismic wall" refers to the side of the edge component that is subjected to greater force under the action of the earthquake force, which is the side of the edge component away from the wall body here.

[0041] In some embodiments, see Figure 5The cross section of the edge member vertical hole 13 is an ellipse, the length of the minor axis of the ellipse is 9 to 11 cm, the length of the major axis of the ellipse is 12 to 16 cm, and the direction of the minor axis of the ellipse is parallel to the thickness direction of the precast seismic wall; the diameter of the edge member vertical reinforcement 16 is 8 mm or 10 mm, and the edge member vertical reinforcement 16 is located outside the corresponding edge member vertical hole 13 within the concrete range of the precast seismic wall, and the edge member vertical reinforcement 16 around the edge member vertical hole 13 of the lower precast seismic wall 5 is bent within the height range of the top of the lower precast seismic wall 5 and the floor slab 4, and extends into the corresponding edge member vertical hole 13 of the upper precast seismic wall 6 and is overlapped and connected with the edge member vertical reinforcement 16 of the upper precast seismic wall 6. The post-cast concrete in the edge member vertical hole 13 realizes overlap force transmission by virtue of the bonding effect of concrete and steel bars. At this time, the edge member vertical reinforcement 16 participates in the structural force calculation, and the overlap length meets the current national standard "Technical Standard for Prefabricated Concrete Buildings" GB / T 51231-2016, the bending angle of the steel bars meets the requirements of the current national standard "Code for Design of Concrete Structures" GB 50010-2010; the main load-bearing vertical bars 15 of the edge members and the vertical bars 1 of the lap-connected edge members are all involved in the structural force calculation. The total area of ​​the main load-bearing vertical bars 15 of the edge members and the vertical bars 1 of the lap-connected edge members are designed and determined according to the bending bearing capacity of the seismic wall. For the design method, please refer to the current national standard "Code for Design of Concrete Structures" GB 50010-2010 and the current industry standard "Technical Code for Concrete Structures of High-rise Buildings" JGJ 3-2010.

[0042] refer to Figure 1 to Figure 3 , Figure 6 When the notch 3 is located in the prefabricated seismic wall body 12, the notch 3 is set at the bottom adjacent to the prefabricated seismic wall body 12 and the vertical post-casting section 2, the width of the notch 3 is 20-50 cm, the vertical wall reinforcement 18 of the lower prefabricated seismic wall 5 passes through the floor slab 4 and extends into the notch of the upper prefabricated seismic wall 6, the lower end of the vertical wall reinforcement 18 of the upper prefabricated seismic wall 6 extends into the notch of the upper prefabricated seismic wall 6, the vertical wall reinforcement 18 of the upper and lower prefabricated seismic walls are overlapped and connected in the notch 3 of the upper prefabricated seismic wall 6, and the overlap length meets the requirements of the current national standard "Technical Standard for Prefabricated Concrete Buildings" GB / T 51231-2016, the top of the notch 3 is 30-60 mm higher than the upper end of the vertical wall reinforcement 18 of the lower prefabricated seismic wall 5 to meet the installation requirements, and the post-cast concrete in the notch 3 is poured through the vertical post-casting section 2, and the overlap force transmission is realized by means of the bonding effect of concrete and steel bars.

[0043] refer to Figures 4 to 6The height of the notch 3 on one side adjacent to the vertical post-casting section 2 or the vertical hole 13 of the edge member is 2 to 10 cm greater than that on the other side, and a slope is formed at the bottom of the corresponding prefabricated seismic wall, which is convenient for smoothly discharging air and avoiding air pockets during pouring the post-casting concrete in the notch 3, thereby improving the compactness of the post-casting concrete; a slurry outlet 19 is provided at the top of the notch 3 away from the vertical post-casting section 2 or the vertical hole 13 of the edge member, and the slurry outlet 19 is located on the prefabricated seismic wall, and the slurry outlet 19 is connected with the notch 3, further ensuring smooth discharge of air during pouring the post-casting concrete in the notch 3. In some embodiments, the slurry outlet 19 is formed by a pre-buried plastic pipe during the production process of the prefabricated seismic wall, and the inner diameter of the plastic pipe is 1 to 2 cm. After the steel bar connection and binding are completed in the gap 3 at the construction site, a formwork is set up to close both sides of the gap 3. The insulation board 8 and the outer leaf wall 9 can be used as the outer formwork for pouring the post-cast concrete in the gap 3. The post-cast concrete is poured from the top of the prefabricated seismic wall through the vertical post-cast section 2 or the vertical hole 13 of the edge member to fill the gap 3 with post-cast concrete, thereby avoiding the complicated sealing operation of the existing steel sleeve grouting connection of the prefabricated seismic wall. The horizontal joint construction at the construction site is simple and the quality control is simple. At the same time, the number of vertical holes is reduced with the help of the vertical post-cast section, the pouring site of the post-cast concrete is more concentrated, and the pouring efficiency is high.

[0044] When the edge member 11 of the precast seismic wall is directly connected to the body 12 of the precast seismic wall, and the dimension of the concrete between the notch 3 on one side of the vertical post-cast section 2 and the vertical hole 13 of the edge member along the width direction of the precast seismic wall is greater than 40 cm, according to the spacing structural requirements of the vertical reinforcement of the seismic wall body in the current national standard "Code for Design of Concrete Structures" GB 50010-2010 and the current industry standard "Technical Code for Concrete Structures of High-rise Buildings" JGJ 3-2010, vertical reinforcement 18 of the wall body shall be arranged in the concrete between the notch 3 on one side of the vertical post-cast section 2 and the vertical hole 13 of the edge member. In order to realize the connection of the vertical reinforcement 18 of the wall body and the connection of the bottom of the precast seismic wall within the above range, reference shall be made to Figure 1 to Figure 3 , Figure 7A vertical hole 14 is provided between the notch on one side of the vertical post-casting section 2 and the vertical hole 13 of the edge member. The vertical hole 14 of the wall penetrates along the height direction of the prefabricated seismic wall, and the center distance between adjacent vertical holes 14 of the wall is controlled to be 30 to 40 cm. In some embodiments, the cross section of the vertical hole 14 of the wall is an ellipse, the length of the minor axis of the ellipse is 9 to 11 cm, the length of the major axis of the ellipse is 14 to 21 cm, the direction of the minor axis of the ellipse is parallel to the thickness direction of the prefabricated seismic wall, and a vertical wall reinforcement 18 is provided outside the vertical hole 14 of the wall. The lower prefabricated seismic wall 5 The vertical reinforcement 18 of the wall is bent within the height range of the top of the lower prefabricated seismic wall 5 and the floor 4, and extends into the corresponding vertical hole 14 of the wall of the upper prefabricated seismic wall 6 to overlap and connect with the vertical reinforcement 18 of the wall of the upper prefabricated seismic wall 6. The post-cast concrete in the vertical hole 14 of the wall realizes the overlap force transmission by virtue of the bonding effect between the concrete and the steel bar. The overlap length meets the requirements of the current national standard "Technical Standard for Prefabricated Concrete Buildings" GB / T51231-2016, and the bending angle of the steel bar meets the requirements of the current national standard "Specification for Design of Concrete Structures" GB 50010-2010. It can be seen that there are concrete ribs between the vertical holes of the edge components and the vertical holes of the wall of the utility model to connect the two sides of the prefabricated seismic wall. The mold is not easy to expand during the process of casting the post-cast concrete in the vertical holes of the edge components and the vertical holes of the wall. The prefabricated seismic wall can be formed in one time and is suitable for exterior walls with complex shapes such as bay windows.

[0045] In summary, in the utility model, by innovating the vertical reinforcement connection method and the post-cast concrete pouring path, the prefabricated seismic wall of the utility model has the advantages of good stress-bearing performance of the prefabricated seismic wall steel bar direct connection of the steel sleeve grouting connection and simple on-site connection of the hollow composite shear wall, while avoiding the shortcomings of the existing steel sleeve grouting connection, such as large sealing workload and difficult quality control of pressure grouting. Compared with the existing hollow composite shear wall, the post-cast concrete pouring is concentrated, the number of vertical holes is greatly reduced, and the post-cast concrete vibration efficiency is high.

[0046] The above description is only some preferred embodiments of the utility model and an explanation of the technical principles used. Those skilled in the art should understand that the disclosure scope involved in the embodiments of the utility model is not limited to the technical solutions formed by the specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above disclosed concept. For example, the above features are replaced with the technical features with similar functions disclosed in the embodiments of the utility model (but not limited to) to form a technical solution.

Claims

1. An assembled seismic wall, comprising a prefabricated seismic wall produced in a factory and a vertical post-cast section cast on the construction site, characterized in that: The bottom of the prefabricated seismic wall adjacent to the vertical post-casting section and the bottom of the edge components of the prefabricated seismic wall are both reserved with gaps; When the gap is located at the edge component of the prefabricated seismic wall, the gap width is 0 to 5 cm larger than the width of the edge component of the prefabricated seismic wall, a double row of edge component main force-bearing vertical reinforcement is arranged near the outer side of the edge component of the prefabricated seismic wall, and a double row of edge component erection vertical reinforcement is arranged on the inner side of the edge component of the prefabricated seismic wall. The edge component main force-bearing vertical reinforcement, the edge component erection vertical reinforcement and the edge component stirrups form an edge component steel cage, and the edge component main force-bearing vertical reinforcement of the upper and lower prefabricated seismic walls is connected in the gap of the upper prefabricated seismic wall; When the edge member of the prefabricated seismic wall is directly connected to the wall body of the prefabricated seismic wall, a vertical hole of the edge member is arranged between the vertical reinforcements of the edge member of the prefabricated seismic wall, the vertical hole of the edge member is penetrated along the height direction of the prefabricated seismic wall, and the bottom of the vertical hole of the edge member is connected to the corresponding notch; When the notch is located in the prefabricated seismic wall, the width of the notch is 20 to 50 cm, the vertical reinforcements of the upper and lower prefabricated seismic walls are overlapped and connected in the notch, and the top of the notch is 30 to 60 mm higher than the upper end of the vertical reinforcements of the lower prefabricated seismic wall.

2. The assembled seismic wall according to claim 1, characterized in that: The main load-bearing vertical reinforcements of the edge components of the upper and lower prefabricated seismic walls are connected through overflow pipes. The overflow pipes are made of seamless steel pipes. The overflow pipes are connected to the main load-bearing vertical reinforcements of the edge components of the lower prefabricated seismic wall by buckling or threaded engagement. The overflow pipes are connected to the main load-bearing vertical reinforcements of the edge components of the upper prefabricated seismic wall by the bonding effect of high-strength cement-based slurry.

3. The assembled earthquake-resistant wall according to claim 1, characterized in that: The height of the notch on one side adjacent to the vertical post-casting section or the vertical hole of the edge component is 2 to 10 cm greater than the height on the other side. A slurry outlet is arranged at the top of the notch away from the vertical post-casting section or the vertical hole of the edge component. The slurry outlet is located on the prefabricated seismic wall and is connected to the notch.

4. The assembled earthquake-resistant wall according to claim 2, characterized in that: The lower end of the overflow pipe is located within the floor height range between the upper and lower prefabricated seismic walls, and the distance that the upper end of the overflow pipe protrudes from the top surface of the floor is not less than 2 cm.

5. The assembled earthquake-resistant wall according to claim 1, characterized in that: The cross section of the vertical hole of the edge member is elliptical, the length of the minor axis of the ellipse is 9-11 cm, the length of the major axis of the ellipse is 12-16 cm, and the direction of the minor axis of the ellipse is parallel to the thickness direction of the prefabricated seismic wall.

6. The assembled earthquake-resistant wall according to claim 1, characterized in that: The diameter of the edge member vertical reinforcement is 8mm or 10mm. Within the concrete range of the precast seismic wall, the edge member vertical reinforcement is located outside the corresponding edge member vertical hole. The edge member vertical reinforcement around the vertical hole of the lower precast seismic wall edge member is bent within the range of the top of the lower precast seismic wall and the floor height, and extends into the corresponding vertical hole of the upper precast seismic wall edge member to overlap and connect with the upper precast seismic wall edge member vertical reinforcement.

7. The assembled earthquake-resistant wall according to claim 1, characterized in that: The total area of ​​the main load-bearing vertical reinforcement of the edge components and the vertical reinforcement of the lap-connected edge components is designed and determined according to the bending bearing capacity requirements of the seismic wall.

8. The assembled earthquake-resistant wall according to claim 1, characterized in that: When the gap is adjacent to the vertical post-cast section and the gap is located within the range of the prefabricated seismic wall edge component, the width of the prefabricated seismic wall edge component is 20 to 32 cm, and the center distance between the main load-bearing vertical reinforcement of the prefabricated seismic wall edge component and the adjacent vertical post-cast section vertical reinforcement is not more than 30 cm.

9. The assembled earthquake-resistant wall according to claim 1, characterized in that: When the edge component of the prefabricated seismic wall is directly connected to the wall body of the prefabricated seismic wall, and the dimension of the concrete between the notch on one side of the vertical post-cast section and the vertical hole of the edge component along the width direction of the prefabricated seismic wall is greater than 40 cm, vertical holes in the wall body are arranged between the notch on one side of the vertical post-cast section and the vertical hole of the edge component, the vertical holes in the wall body are connected along the height direction of the prefabricated seismic wall, and the center distance between adjacent vertical holes in the wall body is 30 to 40 cm.

10. The assembled earthquake-resistant wall according to claim 9, characterized in that: The cross-section of the vertical hole in the wall is an ellipse, the length of the short axis of the ellipse is 9 to 11 cm, the length of the long axis of the ellipse is 14 to 21 cm, the direction of the short axis of the ellipse is parallel to the thickness direction of the prefabricated seismic wall, vertical wall reinforcements are arranged outside the vertical hole in the wall, the vertical wall reinforcements of the lower prefabricated seismic wall are bent within the range of the top of the lower prefabricated seismic wall and the floor height, and extend into the corresponding vertical hole in the wall of the upper prefabricated seismic wall to be overlapped and connected with the vertical wall reinforcements of the upper prefabricated seismic wall.

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