Superimposed shear wall module structure system with mutually lapped single truss steel bars and construction method

Abstract

The invention discloses a superposed shear wall module structure system with mutually lapped single truss steel bars and a construction method, the superposed shear wall module structure system comprises a plurality of module units, superposed shear walls of all the module units are spliced and connected in the horizontal and vertical directions, each superposed shear wall is composed of two oppositely-arranged prefabricated leaf plates and concrete poured between the two prefabricated leaf plates, and the prefabricated leaf plates are connected with the concrete. Horizontally-distributed steel bars and single truss steel bars are pre-buried in the prefabricated leaf plate, the upper edge of the superimposed shear wall is connected with the prefabricated beam, a bottom bar of the prefabricated beam is anchored into an edge component formed by the end of the superimposed shear wall, and the two single truss steel bars of the superimposed shear wall are not in lap joint within the anchoring range of the bottom bar of the beam and are provided with closed stirrups. And the two single truss steel bars of the laminated shear wall below the beam height range are mutually overlapped and are not provided with closed stirrups. Original scattered module units are combined into an overall stress component, the leaf plates participate in structural stress, the structural integrity and safety are improved, rapid assembly can be achieved, the construction efficiency is improved, the weight is reduced, and the building use space is increased.

Description

Technical Field

[0001] This invention belongs to the field of modular construction, and particularly relates to a composite shear wall modular structure system in which single-piece truss steel bars overlap each other, and also relates to a construction method for the structural system. Background Technology

[0002] With the continuous advancement of urbanization and rural development, traditional construction methods suffer from problems such as large construction workload and high resource consumption. Modular buildings, as a highly industrialized building form, use prefabricated standardized volume units with room dimensions. These units are typically manufactured in factories and then transported to the site for assembly, offering significant advantages such as fast construction speed, controllable quality, and environmental friendliness.

[0003] However, existing modular building technologies are still mainly applied to low- and mid-rise buildings, with limited application in high-rise, especially high-rise residential projects. Residential unit types generally exhibit high diversity and inconsistent module specifications, leading to complex inter-module connection technologies and low standardization, which in turn affects structural integrity and construction efficiency. Furthermore, residential buildings have high clearance requirements; if prefabricated structural modules are used, their cross-sectional dimensions are easily limited, and the modules' large volume and weight place high demands on transportation and hoisting equipment, significantly increasing construction costs and hindering the widespread adoption of modular buildings.

[0004] In particular, in concrete modular building systems, non-load-bearing shell components are currently widely used, such as thin-shell panels used as formwork that do not participate in structural load-bearing. This leads to increased wall thickness, occupies interior space, and results in a large amount of on-site rebar tying and concrete pouring work, resulting in low construction efficiency. Although some patent applications have been filed to improve the construction system, existing modular structures still generally suffer from problems such as complex connection nodes, insufficient overall stiffness, and cumbersome construction procedures. In addition, on-site splicing of beam top and bottom reinforcement with wall reinforcement is difficult and has poor positioning accuracy, affecting the overall structural integrity and seismic performance.

[0005] Therefore, how to reduce on-site work, improve construction efficiency, and increase usable building space while ensuring structural safety and integrity has become a technical bottleneck that urgently needs to be overcome in this field. Summary of the Invention

[0006] The first objective of this invention is to provide a composite shear wall modular structure system with interlocking single truss steel bars that can improve structural integrity and safety, enable rapid assembly, increase construction efficiency, reduce weight, and increase usable building space.

[0007] The first objective of this invention is achieved through the following technical measures: a modular shear wall structure system with overlapping single-piece truss reinforcement, comprising multiple modular units, wherein the composite shear walls of each modular unit are assembled and connected horizontally and vertically, the composite shear wall comprising an upper modular composite shear wall and a lower modular composite shear wall, characterized in that the composite shear wall is composed of two precast leaf plates arranged opposite each other and post-cast concrete poured into the cavity between the two precast leaf plates, wherein the precast leaf plates The composite shear wall is pre-embedded with horizontally distributed reinforcing bars and single-piece truss reinforcing bars. The upper edge of the composite shear wall is connected to a precast beam. The bottom reinforcement of the precast beam is anchored into the edge member formed by the end of the composite shear wall. Within the anchorage range of the bottom reinforcement of the beam, the two single-piece truss reinforcing bars in the composite shear wall do not overlap each other and are provided with closed stirrups. However, in the composite shear wall below the beam height range, the two single-piece truss reinforcing bars overlap each other and are not provided with closed stirrups. A thickened area is provided on the inner surface of each precast leaf plate of the composite shear wall.

[0008] This invention forms a composite shear wall by overlapping single truss reinforcement bars between adjacent composite shear wall module leaf plates and pouring concrete into the cavity. This combines the originally dispersed modular units into a whole load-bearing component, effectively avoiding the problem of weak joints in traditional modular buildings. Moreover, the leaf plates participate in structural stress, solving the problems of increased wall thickness, occupation of indoor space, and large amount of on-site reinforcement binding and concrete pouring work, as well as low construction efficiency caused by using thin-shell plates as formwork without participating in structural stress in the prior art. In addition, this invention prefabricates shear walls, floor slabs (top / bottom slabs), structural beams, and partition walls into complete modular units in the factory, achieving a high degree of standardization and industrialized production. On-site work only requires hoisting, splicing, and partial cavity pouring, which greatly reduces the amount of on-site formwork, reinforcement binding, and concrete pouring work, resulting in fast construction speed and significantly shortened construction period.

[0009] In this invention, longitudinal connecting steel bars are provided in the edge member area where the edge member is set at the end of the composite shear wall. The longitudinal connecting steel bars extend into the upper and lower modular composite shear walls to vertically connect the module units. When the module units are horizontally connected, the edge member set in the edge member area consists of U-shaped stirrups, additional stirrups and longitudinal connecting steel bars, while vertical U-shaped steel bars are set in the non-edge member area to vertically connect the module units.

[0010] The single-piece truss reinforcement of the present invention consists of an upper chord, a lower chord, and web members. The upper chord and the lower chord both extend vertically. The lower chord is embedded in the precast blade and connected to horizontally distributed reinforcement bars. One side of the web member is connected to the lower chord, and the other side is connected to the upper chord located outside the precast blade.

[0011] The thickened area described in this invention is a plate stiffening rib, which extends vertically and is arranged in parallel horizontally, and a rough surface is provided on the inner surface of the precast blade.

[0012] The precast beam described in this invention is a precast double beam or a single beam.

[0013] The composite shear wall of the present invention is a T-shaped shear wall. The edge member area at the junction of the longitudinal and transverse wall limbs of the T-shaped shear wall is provided with an edge member composed of U-shaped stirrups, additional stirrups and longitudinal connecting steel bars.

[0014] The composite shear wall of the present invention is an L-shaped shear wall. An edge member composed of U-shaped stirrups, additional stirrups and longitudinal connecting steel bars is provided in the edge member area at the junction of the longitudinal wall limb and the transverse wall limb of the L-shaped shear wall.

[0015] The second objective of this invention is to provide a construction method for the above-mentioned composite shear wall module structure system in which the single-piece truss steel bars overlap each other.

[0016] The second objective of this invention is achieved through the following technical measures: a construction method for a composite shear wall module structure system with overlapping single-piece truss reinforcement bars, characterized by comprising the following steps:

[0017] S1. Prefabricate each module unit in the factory, including prefabricating two prefabricated leaf plates of standardized single-piece truss steel composite shear wall in the factory, and processing the thickened area and end plate; the module units arranged at the edge of the structure are prefabricated to form composite shear walls as side walls.

[0018] S2. In the edge member area set at the construction site, within the anchorage range of the bottom reinforcement of the beam, an edge member consisting of closed stirrups and several longitudinal connecting bars is tied, and a section of longitudinal connecting bars is reserved at the top for lapping with the longitudinal connecting bars in the upper module unit.

[0019] S3. Transport each module unit to the construction site, hoist horizontally adjacent module units, so that the two single truss steel bars in the shear wall of the two module units below the beam height overlap each other, while the single truss steel bars in the prefabricated part of the shear wall of the two module units do not overlap each other within the anchorage range of the bottom reinforcement of the beam, so that the module unit is installed in place, and the non-overlapping single truss steel bars are made to transfer force through the closed stirrup composed of U-shaped stirrups and additional stirrups.

[0020] S4. When the same layer of module units is installed, vertical U-shaped steel bars are longitudinally anchored into the cavity between the two prefabricated leaf plates of the stacked shear wall of the two module units in the non-edge component area, and the vertical U-shaped steel bars are extended upward for connection with the stacked shear wall of the upper module unit.

[0021] S5. Concrete is poured into the cavity between the two precast blades of the adjacent module unit so that the precast blades of the two module units are connected with the concrete to form a composite shear wall.

[0022] S6. After the lower-level module unit is installed, pour concrete on the overlapping layer of the top plate of the module unit.

[0023] S7. After the cast-in-place layer of the top slab of the module unit reaches the required strength, lay a sound insulation pad or grout layer on top of the top slab, and then install the upper module unit.

[0024] S8. Repeat steps S2 to S7 until the construction of the entire structural system is completed.

[0025] Compared with the prior art, the present invention has the following significant technical effects:

[0026] (1) The present invention combines the originally discrete modular units into a whole load-bearing component by overlapping adjacent modular leaf plates and pouring concrete in the cavity, which effectively avoids the problem of weak nodes in traditional modular buildings.

[0027] (2) The leaf plate of the present invention participates in the structural stress, which solves the problem that using thin shell plate as a template without participating in the structural stress leads to an increase in wall thickness, occupies indoor space, and causes a large amount of on-site steel reinforcement binding and concrete pouring work, resulting in low construction efficiency.

[0028] (3) The present invention prefabricates shear walls, floor slabs (top slab / bottom slab), structural beams and partition walls into complete modular units in the factory, realizing a high degree of standardization and industrialized production. On-site, only hoisting, splicing and partial cavity pouring are required, which greatly reduces the amount of work of on-site formwork, steel bar binding and concrete pouring, resulting in fast construction speed and significantly shortened construction period.

[0029] (4) This invention targets different types of shear walls (straight, L-shaped, T-shaped), and forms strong node areas by setting closed stirrups (U-shaped stirrups and additional stirrups) and longitudinal connecting steel bars in the edge member area. This ensures that vertical and horizontal forces are reliably and effectively transmitted between module units, between upper and lower layers, and between wall limbs in different directions, and the mechanical properties are equivalent to those of cast-in-place structures.

[0030] (5) In view of the thinness of the precast blade, the present invention makes local thickening treatment at key parts (such as the connection with the floor slab and the hoisting point). This design significantly improves the rigidity and stability of the blade during demolding, transportation and hoisting, and prevents damage. At the same time, it enhances the connection strength and anchoring performance with the floor slab and other components, and ensures safety during the construction process and the use stage.

[0031] (6) The present invention provides a rough surface on the inner surface of the blade, which greatly enhances the bond strength and shear resistance between the precast concrete and the post-cast concrete, prevents the interface between the two from slipping, and ensures that they can share the load, thereby guaranteeing the overall mechanical performance of the composite shear wall.

[0032] (7) The present invention can flexibly adopt various shear wall forms such as straight line, L-shape, and T-shape, which can adapt to the complex building plan layout requirements, meet the diverse requirements of modern building design, and break through the limitations of the single form of traditional modular building structure.

[0033] (8) The modular building system of the present invention can be applied to high-rise modular buildings such as dormitories, residences or buildings with low degree of standardization of floor plan, and has a wide range of application scenarios. Attached Figure Description

[0034] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0035] Figure 1 This is a planar schematic diagram of the same layer module unit of the present invention;

[0036] Figure 2 yes Figure 1 A plan view of a T-shaped shear wall;

[0037] Figure 3 It is along Figure 2 Schematic diagram of the cross section of line AA in the middle;

[0038] Figure 4 It is along Figure 2 Schematic diagram of the cross section of the middle BB line;

[0039] Figure 5 It is along Figure 2 Schematic diagram of the cross section of the CC line;

[0040] Figure 6 yes Figure 1 A plan view of the linear shear wall between adjacent modules;

[0041] Figure 7 yes Figure 1 A plan view of the L-shaped shear wall between adjacent modules;

[0042] Figure 8 yes Figure 1 A plan view of the L-shaped shear wall in the middle and side modules.

[0043] In the diagram: 1-Composite shear wall, 2-Post-cast concrete, 3-Precast leaf slab, 4-Horizontal distributed reinforcement, 5-Top chord, 6-Bottom chord, 7-Web member, 8-U-shaped stirrup, 9-Additional stirrup, 10-T-shaped shear wall, 11-Beam bottom reinforcement, 12-Upper modular composite shear wall, 13-Lower modular composite shear wall, 14-Module top slab, 15-Module bottom slab, 16-Grouting layer, 17-Longitudinal connecting reinforcement, 18-Thickened zone, 19-Line shear wall between adjacent modules, 20-Line shear wall of the edge module, 21-L-shaped shear wall between adjacent modules, 22-L-shaped shear wall of the edge module, 23-Vertical U-shaped reinforcement. Detailed Implementation

[0044] like Figures 1-5 As shown, the present invention discloses a composite shear wall modular structure system with interlocking single-piece truss steel bars, comprising multiple modular units, wherein the composite shear wall 1 of each modular unit is assembled and connected in the horizontal and vertical directions; the composite shear wall 1 includes an upper modular composite shear wall 12 and a lower modular composite shear wall 13, a module top plate 14, a module bottom plate 15, and a grouting layer 16 (or a sound insulation pad layer). Each composite shear wall 1 consists of two precast leaf slabs 3 arranged opposite each other and post-cast concrete 2 poured into the cavity between the two precast leaf slabs 3. Horizontally distributed reinforcing bars 4 and single-piece truss reinforcing bars are pre-embedded within the precast leaf slabs 3. A precast beam connects to the upper edge of the composite shear wall 1. The precast beam can be a precast double beam or a single beam. The bottom reinforcement 11 of the precast beam is anchored into the edge members formed at the ends of the composite shear wall 1. Within the anchorage range of the bottom reinforcement 11, the two single-piece truss reinforcing bars in the composite shear wall 1 do not overlap and are provided with closed stirrups to form a confinement area, reliably transferring the force between adjacent module units. Below the beam height, the two single-piece truss reinforcing bars in the composite shear wall 1 overlap and are not provided with closed stirrups. A thickened area 18, precast integrally with the precast leaf slab 3, is provided on the inner surface of each precast leaf slab 3 of the composite shear wall 1.

[0045] In this article, "lap splicing" refers to two single truss steel bars lapping together without any connection between them.

[0046] This invention addresses the issue of the relatively thin precast leaf slab 3 by locally thickening key areas (such as the connection with the floor slab and hoisting points). Specifically, each precast leaf slab 3 of the composite shear wall 1 has an integrally precast thickened area 18 on its inner surface. The thickened area 18 serves as a stiffening rib, extending vertically and arranged horizontally in parallel. This design significantly improves the rigidity and stability of the precast leaf slab 3 during demolding, transportation, and hoisting, preventing damage. Simultaneously, it enhances the connection strength and anchoring performance with components such as the floor slab, ensuring safety during construction and use. Furthermore, the roughened inner surface of the precast leaf slab 3 of the composite shear wall 1 greatly enhances the bond strength and shear resistance between the precast concrete and the post-cast concrete 2, preventing interface slippage and ensuring they can share the load, thereby guaranteeing the overall mechanical performance of the composite shear wall 1.

[0047] The single-piece truss reinforcement consists of an upper chord 5, a lower chord 6, and web members 7. Both the upper chord 5 and the lower chord 6 extend vertically. The lower chord 6 is pre-embedded in the precast blade 3 and welded to the horizontally distributed reinforcement 4. The web members 7 are integrally made corrugated reinforcements that extend vertically. One side of the web members 7 is welded to the lower chord 6, and the other side is welded to the upper chord 5 located outside the precast blade 3, so that both precast blades 3 participate in the overall structural stress.

[0048] In the edge member area where the edge member is set at the end of the composite shear wall 1, longitudinal connecting steel bars 17 are provided. The longitudinal connecting steel bars 17 extend into the upper modular composite shear wall 12 and the lower modular composite shear wall 13 respectively to vertically connect the module units. When the module units are horizontally connected, the edge member set in the edge member area consists of U-shaped stirrups 8, additional stirrups 9 and longitudinal connecting steel bars 17, while vertical U-shaped steel bars 23 are set in the non-edge member area to vertically connect the module units.

[0049] The composite shear wall of the present invention can take various forms, such as straight shear wall, L-shaped shear wall and T-shaped shear wall, depending on the needs of the plan layout.

[0050] The composite shear wall is a T-shaped shear wall 10. At the junction of the longitudinal and transverse wall segments of the T-shaped shear wall 10, edge members consisting of U-shaped stirrups 8, additional stirrups 9, and longitudinal connecting bars 17 are provided. The U-shaped stirrups 8 and additional stirrups 9 form closed stirrups, reliably connecting adjacent module units into a whole. When the longitudinal wall segment of the T-shaped shear wall 10 is long, edge members are provided at the ends of the longitudinal wall segments. The bottom reinforcement 11 of the structural beams should extend into and be anchored within this edge member, and the stirrups in the joint area bear the force transmission function. At such edge members, single truss reinforcements do not cross the wall centerline or overlap each other; instead, stress transmission is achieved through stirrups.

[0051] like Figure 1 and Figure 6As shown, the composite shear wall between horizontally adjacent composite shear wall modules includes a straight shear wall (a straight shear wall 19 between adjacent modules), with edge members provided at the ends and / or middle positions of the straight shear wall.

[0052] When the composite shear wall module is a side module, the composite shear wall serving as the side wall in the side module is a straight shear wall (the straight shear wall 20 of the side module). The straight shear wall is prefabricated in the factory and has edge members at the ends and / or middle positions of the straight shear wall.

[0053] like Figure 1 , Figure 7 and Figure 8 As shown, the composite shear wall between horizontally adjacent composite shear wall modules includes an L-shaped shear wall (L-shaped shear wall 21 between adjacent modules), which is formed by orthogonally connecting wall segments in two directions at the corner. Edge members are provided in the corner node area of ​​this L-shaped shear wall. The module units of the wall segments in the two directions are connected by mutually perpendicularly anchored U-shaped stirrups, additional stirrups, and longitudinal connecting steel bars to ensure the strength and stiffness of the corner node. The longitudinal connecting steel bars are also used to realize the vertical force transfer between the upper and lower module units. Meanwhile, the truss steel bars of the leaf plates on both sides of the wall body overlap and concrete is poured into the central cavity to form the load-bearing body.

[0054] When the composite shear wall module is a side module, the composite shear wall serving as the side wall in the side module is an L-shaped shear wall (L-shaped shear wall 22 of the side module), and edge members are provided in the corner node area of ​​the L-shaped shear wall.

[0055] The above edge components are all composed of U-shaped stirrups, additional stirrups, and several longitudinal connecting bars. The longitudinal connecting bars are used to realize the connection of steel bars and the transmission of force between the upper and lower module units.

[0056] A construction method for a composite shear wall modular structure system with overlapping single-piece truss reinforcement bars, comprising the following steps:

[0057] S1. Prefabricate each module unit in the factory. The module unit is a hexahedral structure prefabricated in the factory. It consists of a module top plate 14, a module bottom plate 15, a composite shear wall 1, structural beams and partition walls. The composite shear wall 1 is made by prefabricating two prefabricated leaf plates 3 of a standardized single-piece truss steel composite shear wall in the factory, and processing the thickened area 18 and end plates. When the module unit is arranged at the edge of the structure, the two prefabricated leaf plates 3 can be overlapped and then concrete poured to form a whole, that is, the composite shear wall as the side wall is prefabricated in the factory.

[0058] S2. In the edge component area set at the construction site, within the anchorage range of the bottom reinforcement of the beam, the edge component is bound with closed stirrups and several longitudinal connecting steel bars 17, and a section of longitudinal connecting steel bars 17 is reserved at the top for lapping with the longitudinal connecting steel bars 17 in the upper module unit.

[0059] S3. Transport each module unit to the construction site, hoist horizontally adjacent module units, so that the two single truss steel bars in the shear wall 1 of the two module units below the beam height overlap each other, so that the precast leaf plate 3 participates in the structural force, while the single truss steel bars of the shear wall 1 of the two module units do not overlap each other within the anchorage range of the bottom reinforcement of the beam, so that the module unit is installed in place, and the force is transmitted by the closed stirrup composed of U-shaped stirrup 8 and additional stirrup 9;

[0060] S4. When the same layer of module units is installed, vertical U-shaped steel bars 23 are longitudinally anchored into the cavity between the two prefabricated leaf plates 3 of the stacked shear wall 1 of the two module units in the non-edge component area, and the vertical U-shaped steel bars 23 are extended upward for connection with the stacked shear wall 1 of the upper module unit.

[0061] S5. Concrete is poured into the cavity between the two precast blades 3 of the adjacent module unit so that the precast blades 3 of the two module units are connected with the concrete to form a composite shear wall 1; at the same time, concrete is poured at the edge members.

[0062] S6. After the lower-level module units are installed, concrete is poured on the overlapping layer of the top plate of the module units to make the structure a whole and improve the integrity and rigidity of the structure.

[0063] S7. After the cast-in-place layer of the top slab of the module unit reaches the required strength, a sound insulation layer or a grouting layer 16 shall be laid on top of the top slab, and the strength grade of the grouting layer in the beam-slab joint area shall not be lower than the concrete strength grade of the composite shear wall; then the upper module unit shall be installed.

[0064] S8. Repeat steps S2 to S7 until the construction of the entire structural system is completed.

[0065] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A modular shear wall structure system with overlapping single-piece truss reinforcement, comprising multiple modular units, wherein the composite shear walls of each modular unit are assembled and connected horizontally and vertically; the composite shear wall comprises an upper modular composite shear wall and a lower modular composite shear wall, characterized in that: The composite shear wall consists of two precast leaf slabs arranged opposite each other and post-cast concrete poured into the cavity between the two precast leaf slabs. Horizontally distributed reinforcing bars and single-piece truss reinforcing bars are pre-embedded in the precast leaf slabs. The upper edge of the composite shear wall is connected to a precast beam. The bottom reinforcement of the precast beam is anchored into the edge member formed by the end of the composite shear wall. Within the anchorage range of the bottom reinforcement of the beam, the two single-piece truss reinforcing bars in the composite shear wall do not overlap and are provided with closed stirrups. However, in the composite shear wall below the beam height range, the two single-piece truss reinforcing bars overlap and are not provided with closed stirrups. A thickened area is provided on the inner surface of each precast leaf slab of the composite shear wall, which is precast integrally with it.

2. The composite shear wall module structure system with lapped single-piece truss reinforcement according to claim 1, characterized in that: In the edge member area where the edge member is set at the end of the composite shear wall, longitudinal connecting steel bars are provided. The longitudinal connecting steel bars extend into the upper and lower modular composite shear walls to vertically connect the module units. When the module units are horizontally connected, the edge member set in the edge member area consists of U-shaped stirrups, additional stirrups and longitudinal connecting steel bars, while vertical U-shaped steel bars are set in the non-edge member area to vertically connect the module units.

3. The composite shear wall module structure system with lapped single-piece truss reinforcement according to claim 2, characterized in that: The single-piece truss reinforcement consists of an upper chord, a lower chord, and web members. Both the upper and lower chords extend vertically. The lower chord is embedded in the precast blade and connected to horizontally distributed reinforcement bars. One side of the web member is connected to the lower chord, and the other side is connected to the upper chord located outside the precast blade.

4. The composite shear wall module structure system with lapped single-piece truss reinforcement according to claim 3, characterized in that: The thickened area is a plate stiffening rib, which extends vertically and is arranged in parallel horizontally, and has a rough surface on the inner surface of the precast blade.

5. The composite shear wall module structure system with overlapping single-piece truss reinforcement bars as described in claim 4, characterized in that: The precast beam can be a precast double beam or a single beam.

6. The composite shear wall module structure system with lapped single-piece truss reinforcement according to claim 5, characterized in that: The composite shear wall is a T-shaped shear wall. The edge member area at the junction of the longitudinal wall limb and the transverse wall limb of the T-shaped shear wall is provided with an edge member composed of U-shaped stirrups, additional stirrups and longitudinal connecting steel bars.

7. The composite shear wall module structure system with lapped single-piece truss reinforcement according to claim 5, characterized in that: The composite shear wall is an L-shaped shear wall. At the junction of the longitudinal and transverse wall segments of the L-shaped shear wall, edge members composed of U-shaped stirrups, additional stirrups, and longitudinal connecting steel bars are provided in the edge member area.

8. A construction method for a composite shear wall module structure system with overlapping single-piece truss reinforcement bars as described in claim 2, characterized in that... Includes the following steps: S1. Prefabricate each module unit in the factory, including prefabricating two prefabricated leaf plates of standardized single-piece truss steel composite shear wall in the factory, and processing the thickened area and end plate; the module units arranged at the edge of the structure are prefabricated to form composite shear walls as side walls. S2. In the edge member area set at the construction site, within the anchorage range of the bottom reinforcement of the beam, an edge member consisting of closed stirrups and several longitudinal connecting bars is tied, and a section of longitudinal connecting bars is reserved at the top for lapping with the longitudinal connecting bars in the upper module unit. S3. Transport each module unit to the construction site, hoist horizontally adjacent module units, so that the two single truss steel bars in the shear wall of the two module units below the beam height overlap each other, while the single truss steel bars in the shear wall of the two module units do not overlap each other within the anchorage range of the bottom reinforcement of the beam, so that the module unit is installed in place, and the non-overlapping single truss steel bars are transferred through the closed stirrup composed of U-shaped stirrups and additional stirrups; S4. When the same layer of module units is installed, vertical U-shaped steel bars are longitudinally anchored into the cavity between the two prefabricated leaf plates of the stacked shear wall of the two module units in the non-edge component area, and the vertical U-shaped steel bars are extended upward for connection with the stacked shear wall of the upper module unit. S5. Concrete is poured into the cavity between the two precast blades of the adjacent module unit so that the precast blades of the two module units are connected with the concrete to form a composite shear wall. S6. After the lower-level module unit is installed, pour concrete on the overlapping layer of the top plate of the module unit. S7. After the cast-in-place layer of the top slab of the module unit reaches the required strength, lay a sound insulation pad or grout layer on top of the top slab, and then install the upper module unit. S8. Repeat steps S2 to S7 until the construction of the entire structural system is completed.

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