Monolithic truss steel bar overlapping composite shear wall module structural system and construction method

Abstract

The application discloses a single-piece truss steel bar interlapped laminated shear wall module structure system and a construction method, which comprises a plurality of module units, laminated shear walls of the module units are assembled and connected in the horizontal and vertical directions, the laminated shear wall is composed of two oppositely arranged prefabricated leaf plates and concrete poured between the two prefabricated leaf plates, horizontal distribution steel bars and single-piece truss steel bars are pre-embedded in the prefabricated leaf plates, a prefabricated beam is connected to the laminated shear wall, the bottom reinforcement of the prefabricated beam is anchored into an edge component formed by the end part of the laminated shear wall, the two single-piece truss steel bars of the laminated shear wall do not interlap and are provided with closed stirrups in the anchoring range of the beam bottom reinforcement, and the two single-piece truss steel bars of the laminated shear wall interlap and are not provided with closed stirrups below the range of the beam height. The application combines originally dispersed module units into a whole force component, and the leaf plate participates in the structural force, so that the structural integrity and safety are improved, the module units can be quickly assembled, the construction efficiency is improved, the weight is reduced, and the building use space is increased.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of modular construction, and particularly relates to a single-ply truss steel bar interlapped composite shear wall module structure system, and a construction method of the structure system. BACKGROUND

[0002] With the continuous advancement of urbanization and ruralization, the traditional construction method has problems of large construction operation amount and high resource consumption. As a highly industrialized form of construction, modular construction adopts prefabricated room-scale standardized volume units, which are usually produced in factories and then transported to the site for assembly, and has significant advantages such as fast construction speed, controllable quality, and environmental friendliness.

[0003] However, the existing modular construction technology is still mainly applied to low-rise buildings, and its application in high-rise buildings, especially high-rise residential projects, is relatively limited. The residential house type generally has high diversity and non-uniform module specifications, which leads to complex inter-module connection technology and low standardization, thereby affecting the structural integrity and construction efficiency. In addition, residential buildings have high headroom requirements. If the overall prefabricated structural module is used, its cross-sectional size is easily limited, and the module volume and self-weight are large, which puts high requirements on transportation and hoisting equipment, not only significantly increasing the construction cost, but also to some extent restricting the promotion of modular construction.

[0004] In particular, in the concrete modular construction system, non-load-bearing shell components are currently used, such as thin shell plates used as formwork without participating in structural stress, which leads to an increase in wall thickness, occupies indoor use space, and causes large on-site steel bar binding and concrete pouring operation amount, resulting in low construction efficiency. Although some patent applications have been made to improve the construction system, the existing modular structure still generally has problems such as complex connection nodes, insufficient overall stiffness, and complicated construction procedures. In addition, the beam surface reinforcement, beam bottom reinforcement, and wall steel bar are difficult to interlock on site, and the positioning accuracy is poor, which affects the structural integrity and seismic performance.

[0005] Therefore, how to reduce the on-site operation amount, improve the construction efficiency, and increase the building use space while ensuring the structural safety and integrity has become a technical bottleneck that needs to be broken through in this field. SUMMARY

[0006] The first object of the present application is to provide a single-ply truss steel bar interlapped composite shear wall module structure system that can improve the structural integrity and safety, be quickly assembled, improve the construction efficiency, reduce the weight, and increase the building use space.

[0007] The first object of the present application is achieved by the following technical measures: a single truss steel interlaced composite shear wall module structure system, comprising a plurality of module units, the composite shear walls of each module unit are assembled and connected in horizontal and vertical directions, the composite shear wall comprises an upper layer of modular composite shear wall and a lower layer of modular composite shear wall, characterized in that the composite shear wall is composed of two oppositely arranged prefabricated leaf plates and post-cast concrete poured in the cavity between the two prefabricated leaf plates, horizontal distribution steel and single truss steel are pre-embedded in the prefabricated leaf plate, the upper edge of the composite shear wall is connected with a prefabricated beam, the beam bottom steel of the prefabricated beam is anchored into the edge member formed by the end part of the composite shear wall, the two single truss steels in the composite shear wall do not interlace each other and are provided with closed stirrups within the anchoring range of the beam bottom steel, while the two single truss steels interlace each other and are not provided with closed stirrups in the composite shear wall below the beam height range; a thickened area integrally prefabricated with each prefabricated leaf plate of the composite shear wall is arranged on the inner surface of the prefabricated leaf plate.

[0008] The present application interlaces the single truss steels between the adjacent composite shear wall module leaf plates and pours concrete in the cavity to form a composite shear wall, which combines the originally dispersed module units into a whole force bearing member, effectively avoiding the problem of weak traditional modular building nodes, and the leaf plate participates in the structural stress, solving the problems of increased wall thickness, occupied indoor space, and large amount of on-site steel binding and concrete pouring operation, low construction efficiency caused by the use of thin shell plate as a formwork without participating in the structural stress in the prior art; in addition, the present application prefabricates the shear wall, floor (top plate / bottom plate), structural beam and partition wall into complete module units in the factory, realizes high standardization and industrialized production, and only needs to be hoisted, spliced and partially poured in the cavity on site, greatly reducing the amount of formwork, steel binding and concrete pouring on site, fast construction speed and significantly shortened construction period.

[0009] The edge member region of the edge member provided at the end of the composite shear wall is provided with longitudinal connecting steel, which respectively extends into the upper layer of modular composite shear wall and the lower layer of modular composite shear wall to vertically connect the module units; the edge member provided in the edge member region during horizontal connection of the module units is composed of U-shaped stirrup, additional stirrup and longitudinal connecting steel, and vertical U-shaped steel is provided in the non-edge member region to vertically connect the module units.

[0010] The single truss steel of the present application is composed of upper chord, lower chord and web, the upper chord and the lower chord both extend in vertical direction, the lower chord is pre-embedded in the prefabricated leaf plate and connected with horizontal distribution steel, one side of the web is connected with the lower chord, and the other side is connected with the upper chord outside the prefabricated leaf plate.

[0011] The thickening area is a plate stiffening rib, which extends along the vertical direction and is arranged in parallel along the horizontal direction, and a rough surface is arranged on the inner surface of the prefabricated leaf plate.

[0012] The prefabricated beam is a prefabricated double beam or a single beam.

[0013] The superimposed shear wall is a T-shaped shear wall, and an edge component composed of a U-shaped stirrup, an additional stirrup and a longitudinal connecting steel bar is arranged in an edge component area at the intersection of a longitudinal wall limb and a transverse wall limb of the T-shaped shear wall.

[0014] The superimposed shear wall is a L-shaped shear wall, and an edge component composed of a U-shaped stirrup, an additional stirrup and a longitudinal connecting steel bar is arranged in an edge component area at the intersection of a longitudinal wall limb and a transverse wall limb of the L-shaped shear wall.

[0015] The second object of the present application is to provide a construction method of the superimposed shear wall module structure system with the single-piece truss steel bars overlapping each other.

[0016] The second object of the present application is achieved by the following technical measures: the construction method of the superimposed shear wall module structure system with the single-piece truss steel bars overlapping each other, characterized by comprising the following steps:

[0017] S1, prefabricating each module unit in a factory, including prefabricating two prefabricated leaf plates of the standardized single-piece truss steel superimposed shear wall in the factory, and processing the thickening area and the end plate; the module unit arranged at the edge of the structure is prefabricated as a superimposed shear wall serving as an edge wall;

[0018] S2, binding the edge component composed of the closed stirrup and the longitudinal connecting steel bars in the anchoring range of the beam bottom bar in the edge component area set at the construction site, and reserving a section of the longitudinal connecting steel bar at the upper part for overlapping with the longitudinal connecting steel bars in the superimposed shear wall of the upper module unit;

[0019] S3, transporting each module unit to the construction site, hoisting the horizontally adjacent module units, so that the two single-piece truss steel bars in the superimposed shear walls of the two module units overlap each other below the beam height range, while the single-piece truss steel bars in the prefabricated parts of the superimposed shear walls of the two module units do not overlap each other in the anchoring range of the beam bottom bar, so that the module units are installed in place, and the single-piece truss steel bars not overlapping each other realize force transmission through the closed stirrup composed of the U-shaped stirrup and the additional stirrup;

[0020] S4, when the module units of the same layer are installed, vertically anchoring the vertical U-shaped steel bars in the cavity between the two prefabricated leaf plates of the superimposed shear walls of the two module units in the non-edge component area, and extending the vertical U-shaped steel bars upward by a length for connecting with the superimposed shear wall of the upper module unit;

[0021] S5, pouring concrete in the cavity between the two prefabricated leaf plates of adjacent module units to make the prefabricated leaf plates of the two module units and the concrete be pulled together to form a composite shear wall;

[0022] S6, pouring concrete on the composite layer of the top plate of the module unit after the installation of the lower module unit is completed;

[0023] S7, laying a soundproof cushion layer or a sitting slurry layer above the top plate after the cast-in-place layer of the top plate reaches the strength, and then installing the upper module unit;

[0024] S8, repeating steps S2-S7 until the construction of the entire structural system is completed.

[0025] Compared with the prior art, the present application has the following remarkable technical effects:

[0026] (1) The present application combines the originally discrete module units into a whole force-bearing component by the mutual lapping of adjacent module leaf plates and pouring concrete in the cavity, effectively avoiding the problem of weak traditional modular building nodes.

[0027] (2) The leaf plate of the present application participates in structural force, solving the problem of using a thin shell plate as a formwork without participating in structural force, resulting in increased wall thickness, occupation of indoor use space, and large amount of on-site steel binding and concrete pouring operation, low construction efficiency.

[0028] (3) The present application pre-fabricates shear walls, floors (top / bottom plates), structural beams, and partition walls into complete module units in the factory, achieving high standardization and industrialized production, and only needs hoisting, splicing, and local cavity pouring at the site, greatly reducing the amount of on-site formwork, steel binding, and concrete pouring, fast construction speed, and significantly shortened construction period.

[0029] (4) The present application aims at different forms of shear walls (one-letter, L-shaped, T-shaped), forms a strong node area by setting closed stirrups (U-shaped stirrups and additional stirrups) and longitudinal connecting steel bars in the edge component area, ensuring reliable and effective transmission of vertical and horizontal forces between module units, between upper and lower layers, and between different direction wall limbs, and equivalent mechanical properties to cast-in-place structures.

[0030] (5) The present application aims at the characteristics of thin prefabricated leaf plate thickness, and locally thickens at key positions (such as the connection with the floor, the hoisting point), which significantly improves the stiffness and stability of the leaf plate in the demolding, transportation, and hoisting process, prevents damage; at the same time, enhances the connection strength and anchoring performance of the leaf plate with other components such as the floor, ensures the 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 splice" 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 within the precast leaf slabs. A precast beam connects to the upper edge of the composite shear wall. The bottom reinforcement bars of the precast beam are anchored into the edge members formed at the ends of the composite shear wall. Within the anchorage range of the bottom reinforcement bars, the two single-piece truss reinforcing bars in the composite shear wall do not overlap and are provided with closed stirrups. However, below the beam height, the two single-piece truss reinforcing bars overlap and are not provided with closed stirrups. A thickened area is integrally precast on the inner surface of each precast leaf slab of the composite shear wall. Longitudinal connecting reinforcing bars are provided in the edge member area where the edge members are located at the ends of the composite shear wall. The 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 members in the edge member area consist of U-shaped stirrups, additional stirrups, and longitudinal connecting steel bars, while the non-edge member area is provided with vertical U-shaped steel bars to vertically connect the module units. The single truss steel bars consist of an upper chord, a lower chord, and web members. The upper and lower chords extend vertically. The lower chord is embedded in the precast blade and connected to horizontally distributed steel 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. The thickened area is a plate stiffening rib. The plate stiffening rib extends vertically and is arranged in parallel in the horizontal direction, and a rough surface is provided on the inner surface of the precast blade.

2. The composite shear wall module structure system with lapped single-piece truss reinforcement according to claim 1, characterized in that: The precast beam can be a precast double beam or a single beam.

3. The composite shear wall module structure system with lapped single-piece truss reinforcement according to claim 2, characterized in that: The composite shear wall is a T-shaped shear wall. At the junction of the longitudinal and transverse wall segments of the T-shaped shear wall, edge members composed of U-shaped stirrups, additional stirrups, and longitudinal connecting steel bars are provided in the edge member area.

4. The composite shear wall module structure system with lapped single-piece truss reinforcement according to claim 2, 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 consisting of U-shaped stirrups, additional stirrups, and longitudinal connecting steel bars are provided in the edge member area.

5. A construction method for a composite shear wall module structure system with lapped single-piece truss reinforcement as described in claim 1, 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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