Assembled monolithic two-sided overlapped shear wall structure and construction technology thereof

Abstract

The invention discloses an assembled monolithic two-sided overlapped shear wall structure. The assembled monolithic two-sided overlapped shear wall structure comprises a first overlapped template, a second overlapped template and cast concrete, wherein the first overlapped template comprises a first concrete body, a first rebar net framework and multiple first truss bars; the second overlapped template comprises a second concrete body, a second rebar net framework and multiple second truss bars; the cast concrete is arranged between the first concrete body and the second concrete body, and isintegrated with the first concrete body and the second concrete body; the first truss bars are arranged at the portion beyond the first concrete body, the second truss bars are arranged at the portionbeyond the second concrete body, and the first truss bars and the second truss bars are overlapped and spaced. The assembled monolithic two-sided overlapped shear wall structure is maintained and formed at a time, the energy consumption is low, locating bolts are reusable, reserved holes are easy to process, two-sided overlapped template plane production is conducted, vertical pairing is conducted, the standardization degree is higher, bars are produced from sides and peripheries, connection of the bars with surrounding components is facilitated, and the applicable range is larger.

Description

technical field [0001] The invention belongs to the field of assembled buildings, and in particular relates to an assembled integral double-sided laminated shear wall structure and a construction process thereof. Background technique [0002] Prefabricated buildings are produced by factories and assembled into buildings on site. Double-sided laminated shear walls, commonly known as double-skin walls, are formed by connecting the inner wall and the outer wall through truss reinforcement or other methods, and the middle cavity is used for pouring concrete on site. The inner and outer leaf walls are not only the formwork of the shear wall structure building but also the force-bearing member of the wall. Usually, the thickness of the inner and outer leaf wall panels is about 60mm, and the cavity is about 100-300mm. Combined double-sided laminated shear wall, the inner and outer leaf walls are closely connected by truss steel bars or bolts, and can form a whole with the cavity c...

AI Technical Summary

Problems solved by technology

The existing production process is usually flat mold production, flipping and pairing, secondary vibration, secondary curing, and no ribs on the side of the board

[0003] However, the equipment of the existing process is complicated, occupies a lot of land, takes up a lot of space, requires a lot of investment, and is difficult to maintain; flat production, 180-degree flipping and pair forming, the truss bars of the first formwork need to be solidified before the concrete of the second formwork is not condensed and solidified. It is inserted into the second truss bar in the front, but it is difficult to control the insertion depth of the steel bar in actual operation, which makes it difficult to guarantee the appearance and quality of the product; the alignment accuracy of the inner and outer wall panels is poor, and the edge and corner accuracy is not easy to guarantee; When the outer leaf board is buckled (the mold table needs to be rotated 180 degrees), the middle part of the board is easy to demould, causing the middle of the board to be sunken, and it is difficult to find, resulting in product defects and difficult to repair, and warping of the wall surface after completion; The concrete on the bottom wall panel must be poured before it can be assembled, and it is easy to set initially, and the reinforcement mesh cannot be implemented, resulting in the failure of the assembly, resulting in waste of concrete; after the assembly is completed, secondary vibration is required, and the reinforcement mesh and embedded parts are easily dislocated; The two-page wall panels are paired and formed, which needs to be maintained again, resulting in a secondary waste of energy; the concrete of the bottom wall panels must first be put into the mold before being turned over and docked, and then vibrated. At this time, the top wall panels have been covered. Whether the thickness is uniform or not can not be found, leaving serious quality hidden dangers; after the two-page wallboard is closed and vibrated twice, the inner side of the bottom wallboard cannot be made into a rough surface according to the specification requirements, which seriously affects the quality of concrete bonding and causes the finished product Poor mechanical performance; violates the national standard "Technical Standards for Prefabricated Concrete Buildings" (GB / T51231-2016); non-combined walls are difficult to achieve flip alignment, and only hard connections of double-page wall panels can be formed; walls are pre-embedded Parts (water, electricity, etc. interfaces) are difficult to handle, and there is no room for operation; defective products are difficult to remedy, and the two-page wallboard has been poured into one, and if there is a defect, it can only be scrapped

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