Fabricated mixed shear wall system with concrete filled steel pipe connecting joints

Abstract

The invention discloses a fabricated mixed shear wall system with concrete filled steel pipe connecting joints. The fabricated mixed shear wall system with the concrete filled steel pipe connecting joints comprises a prefabricated wall unit structure, wherein steel assemblies formed by welding strip-shaped steel plates, ribbed plates, studs, lug plates and the like are embedded in the upper end and the lower end of the prefabricated wall unit structure, and the strip-shaped steel plates are welded to vertical steel bars and extend outwards to form plates; horizontal steel bars extend out and are annularly closed, and vertical steel bars are spot-welded at the end parts of the horizontal steel bars; prefabricated wall units are temporarily fixed through the lug plates, and upper and lower plate outlet ends are connected with left and right plate outlet ends at floors through groove welding seams; open stirrups are placed in the outlet sections of the horizontal steel bars of the adjacent prefabricated wall units to be in lap joint with or welded to the horizontal steel bars, and self-compacting concrete is poured on the peripheries of the prefabricated wall units to form a complete fabricated mixed shear wall system after the prefabricated wall units are installed. The fabricated mixed shear wall system with the concrete filled steel pipe connecting joints is excellent in stress performance, convenient to construct, economical and reasonable, breaks through some technical bottlenecks encountered in engineering application of current fabricated concrete shear walls, and has high market popularization value.

Description

technical field [0001] The invention relates to a prefabricated shear wall system of construction engineering and a construction method thereof, in particular to a prefabricated hybrid shear wall system with steel pipe concrete connection nodes. Background technique [0002] The prefabricated structure not only occupies a fundamental position in the prefabricated building integrated system, but also plays a "vanguard" leading role in realizing the goal of building industrialization. At present, the prefabricated structure system is mainly composed of prefabricated concrete structure and prefabricated steel structure. Among them, prefabricated concrete structure technology research and development investment is earlier, policy support is also more, and some progress has been made, but the quality, environmental protection, efficiency and cost are still far away. There is still a big gap in the control target. In terms of technical standards formulation, prefabricated concret...

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Problems solved by technology

[0005] The current assembled integral shear wall technology has problems such as complex connection nodes, difficult construction, and difficult detection of concealed projects, which will reduce the reliability of the shear wall connection in engineering practice; the improved assembled integral shear wall, although the construction difficulty is somewhat reduced, but the seismic performance of the shear wall is weaker than that of the cast-in-place shear wall

At present, some problems encountered in the design, construction and quality inspection of prefabricated shear walls restrict its promotion and application. Only by breaking through the current technical bottlenecks and developing high-performance and high-quality prefabricated shear walls can we get rid of the current market Dilemma, promote the development of prefabricated buildings and even the industrialization of buildings

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