Dry and wet mixed connection method of fabricated shear wall

Abstract

The invention discloses a fabricated shear wall dry-wet mixed connection method. The left ends and the right ends of upper-layer prefabricated wall plates and lower-layer prefabricated wall plates areconnected in a positioned mode through nuts, and then cast-in-place shearing force key structures are formed in the middles of the upper-layer prefabricated wall plates and the lower-layer prefabricated wall plates. According to the fabricated shear wall dry-wet mixed connection method, four steel bar connectors are arranged at the two ends of each upper-layer wall plate correspondingly, groovesare formed in the bottoms of the upper-layer prefabricated wall plates, concrete is poured into the grooves to form the shearing force key structures, connecting steel bars anchored on the lower-layerprefabricated wall plates are locked on the steel bar connectors, and thus the connecting structures of the upper-layer prefabricated wall plates and the lower-layer prefabricated wall plates are convenient to construct and reliable in performance; and the advantages of dry-type connection and wet-type connection are combined, the problems that as for an existing connecting mode, on-site construction is difficult, and the quality is not prone to being ensured are solved effectively, the construction process can be simplified, the assembling quality is improved, the mechanical performance of ashear wall after assembling is improved, and the purpose of reducing cost is achieved.

Description

technical field [0001] The invention relates to a connection method of a prefabricated shear wall, in particular to a dry-wet hybrid connection method of a prefabricated shear wall. Background technique [0002] Shear wall structure is an important component of high-rise buildings. It has high bearing capacity and stiffness against lateral movement, can effectively resist horizontal shear force, and has good seismic performance. In recent years, my country's construction industrialization and housing industrialization have accelerated, and the prefabricated shear wall structure has gradually attracted attention and been widely used. It has the advantages of less on-site wet work, convenient construction, less impact on the surrounding environment, and less investment in transportation resources and labor resources. , has a very broad application prospect in multi-storey and high-rise residential buildings in my country. Due to the large horizontal shear force and horizontal ...

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Problems solved by technology

When the sleeve grouting connection method is used, the grouting effect is not good because the grouting needs to be done in a closed space, and the quality inspection is difficult, and the quality of the grouting is difficult to guarantee, and the steel sleeve needs to use high-strength steel, the processing process is complicated, and the cost Too high, high construction accuracy requirements, not suitable for steel bars with thinner cross-sections

The welded connection of steel bars has problems such as heavy welding workload on site and difficulty in guaranteeing welding quality.

The indirect lap joint grout-anchor connection has problems such as the difficulty of on-site construction and the difficulty in ensuring the quality of the reserved holes. Therefore, the prefabrication rate of the inner wall in the prefabricated structure is low, and the cast-in-place structure needs to be installed before reaching the preset strength after hoisting. temporary support

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