Lateral load behaviour of a rectangular precast shear wall involving vertical bolted connections

Abstract

This article is concerned about precast reinforced concrete shear walls and the methods of assembling shear wall panels to form a reliable load transfer system. An assembling method is proposed using dry connection through an H-shaped steel connector (H-connector) and high-strength bolts. A preliminary design, including the H-connector design and bolt design, has been carried out based on the force analysis on the vertical connection in the wall assembly. On the basis of the finite element analysis verified by an experimental study, the preliminary design has been confirmed and a monolithic coefficient ( ζ) has been used to evaluate the cooperative working performance of the two parallel shear walls. Then this article continues to carry out a finite element parametric study on the mechanical behaviour of the precast reinforced concrete shear walls with varying parameters, which includes the bolt specification, the frictional coefficient on the contact surface within the bolted connection and the thickness of the H-connector flange. The lateral load bearing capacity, lateral stiffness and cooperative working performance of the wall assemblies involving these varying parameters have been broadly analysed.

An analytical model for the rotational behavior of concrete segmental joints with gaskets

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Shake Table Tests of a Novel Low-rise Bolt-Assembled Precast Concrete Sandwich Wall Panel Structure

“…A precast shear wall system utilizing high-strength bolts and H-shaped steel frames was proposed [27], in which the steel frames covered the entire horizontal and vertical joints to connect the adjoining panels. Subsequent experimental and analytical studies [28][29][30][31][32] showed that the integrated bolted connectors were capable of providing sufficient strength to effectively join the adjacent panels together. This wall system exhibited satisfactory seismic performance matching with the cast-in-situ concrete structure [33].…”

Experimental study on seismic performance of shear wall with precast concrete hollow molds

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