Prefabricated assembly type double-steel pipe concrete shear wall and assembly method thereof

Abstract

The invention discloses a prefabricated assembly type double-steel pipe concrete shear wall and an assembly method thereof. The double-steel pipe concrete shear wall comprises outer steel pipes buried in the concrete wall and a steel bar net buried inside the concrete wall and formed by interweaving of knot pulling steel bars, vertically-distributed steel bars and horizontally-distributed steel bars; the upper and lower ends of the outer steel pipes partially extend out of the upper portion and the lower portion of the concrete wall; inner steel pipes are sleeved with the outer steel pipes; the inner steel pipes are filled with high-strength concrete columns; and the parts, extending out of the concrete wall, of the outer steel pipes and the inner steel pipes are radially penetrated through and fixed through transverse bolts to prevent axial and circumferential relative motion between the parts, extending out of the concrete wall, of the outer steel pipes and the inner steel pipes. The double-steel pipe concrete shear wall has the advantages of being quick and reliable in vertical connection, simple in construction technology, high in horizontal shear resistance bearing capacity, good in integrity, high in out-plane stability, good in seismic performance and short in construction period, and most components can be subjected to standardized production.

Description

technical field [0001] The invention relates to the technical field of prefabricated assembled concrete structures in structural engineering, in particular to a prefabricated assembled double steel pipe concrete shear wall and an assembly method thereof. Background technique [0002] Joint connection technology is the key technology to ensure the integrity and seismic performance of prefabricated concrete structures. The horizontal joints of traditional prefabricated prefabricated shear walls or prefabricated prefabricated concrete-filled steel tube shear walls are mainly connected by sleeve grouting or grout-anchor lap joints of vertical steel bars. The control is difficult, the construction period is long, and the cost is high. The advantages of the prefabricated shear wall structure cannot be fully utilized, and the height of the building is greatly limited; The bending resistance of the embedded concrete-filled steel tube columns is volatilized, the structural integrity...

AI Technical Summary

Problems solved by technology

The horizontal joints of traditional prefabricated prefabricated shear walls or prefabricated prefabricated concrete-filled steel tube shear walls are mainly connected by sleeve grouting or grout-anchor lap joints of vertical steel bars. The control is difficult, the construction period is long, and the cost is high. The advantages of the prefabricated shear wall structure cannot be fully utilized, and the building height is greatly limited; Volatilization of the bending resistance of concrete-filled steel tube embedded columns, the structural integrity is not strong, and the stability of out-of-plane eccentricity is not high, which seriously reduces the seismic performance of fabricated steel tube concrete shear walls

[0003] At present, relevant research has been carried out on the prefabricated steel pipe concrete frame shear wall and its vertical steel connection method in China, but there is no technical method that can fundamentally change the integrity and out-of-plane stability of the prefabricated assembly. Seismic Performance of Prefabricated Concrete-filled Steel Tube Frame Shear Wall Structure Constrained by Horizontal Joint Connection Technology

Images