Seismic Performance of a Novel Precast Shear Wall with Mixed Wet and Dry Steel Plate–Bolt Connections: A Finite Element Study

Qiang Du, Zhaoxi Ma, Yiyun Zhu (), Geng Chen and Yue Zhao
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Qiang Du: School of Civil Engineering and Architecture, Xi’an University of Technology, Xi’an 710048, China
Zhaoxi Ma: School of Civil Engineering and Architecture, Xi’an University of Technology, Xi’an 710048, China
Yiyun Zhu: School of Civil Engineering and Architecture, Xi’an University of Technology, Xi’an 710048, China
Geng Chen: School of Civil Engineering and Architecture, Xi’an University of Technology, Xi’an 710048, China
Yue Zhao: School of Civil Engineering and Architecture, Xi’an University of Technology, Xi’an 710048, China

Mathematics, 2025, vol. 13, issue 7, 1-22

Abstract: This paper proposes a hybrid steel plate–bolt dry and wet jointing method, where the dry jointing part is a steel plate–bolt connector joint and the wet jointing part is a cast-in-place concrete. The novel precast concrete shear wall (PCW) combines the advantages of both dry and wet connections. A steel plate–bolt dry–wet hybrid connection shear wall model was developed using the finite element method, and a low circumferential reciprocating load was applied to the PCW. By analyzing the force and deformation characteristics of the wall, the results showed that the failure mode of novel PCWs was bending-shear failure. Compared to the concrete wall (CW), the yield load, peak load, and ductile displacement coefficient were 6.55%, 7.56%, and 21.49% higher, respectively, demonstrating excellent seismic performance. By extending the wall parameters, it was found that the increased strength of the novel PCW concrete slightly improved the load-bearing capacity, and the ductility coefficient was greatly reduced. As the axial compression ratio increased from 0.3 to 0.4, the wall ductility decreased by 22.85%. Increasing the reinforcement rate of edge-concealed columns resulted in a severe reduction in ultimate displacement and ductility. By extending the connector parameters, it was found that there was an increased number of steel joints, a severe reduction in ductility, enlarged distribution spacing, weld hole plugging and bolt yielding, reduced anchorage performance, and weakening of the steel plate section, which reduced the load-bearing capacity and initial stiffness of the wall, with little effect on ductility.

Keywords: precast concrete shear wall (PCW); connector parameters; steel plate–bolt dry–wet hybrid connection; finite element analysis; seismic performance (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2025
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