Abstract
Background: To study the flexural behaviors of the concrete shear walls with precast hollow slab, one cast in-situ reinforced concrete shear wall and two precast two-way hollow slab shear walls (PTHSWs) vertical joint were tested under low cyclic loading. Objective: The study showed that vertical joints of PTHSW are safe and reliable to ensure the effective connection between the assembly units. The ductility coefficient of shear wall is larger than 7, so this kind of shear wall has good ability of deformation especially under earthquake load. Results: The interface can effectively ensure the integral performance of PTHSWs and its effect on the flexural behaviors of PTHSWs could be ignored.
Highlights
Precast concrete shear wall structure is a monolithic structure which is assembled and connected in the construction site
NIST research project [4] researched vertical joints connected with bolts and welds under low cyclic loading, the results show that both the sliding friction energy dissipation bolt connection and the u-shaped plate bending energy dissipation bolt connection have a good performance, even the sliding friction bolt connection have a better performance in energy dissipation
precast two-way hollow slab shear walls (PTHSWs) structure is a new type of precast concrete shear wall structure
Summary
The study showed that vertical joints of PTHSW are safe and reliable to ensure the effective connection between the assembly units. The ductility coefficient of shear wall is larger than 7, so this kind of shear wall has good ability of deformation especially under earthquake load
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