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Mechanical behavior of precast building concrete walls with different connection technologies for seismic areas
Author(s) -
YuanYuan Peng,
YuHang Wang,
JiaRu Qian
Publication year - 2020
Publication title -
structural concrete
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.912
H-Index - 34
eISSN - 1751-7648
pISSN - 1464-4177
DOI - 10.1002/suco.201900171
Subject(s) - precast concrete , shear wall , stirrup , structural engineering , geotechnical engineering , shear (geology) , dissipation , materials science , engineering , composite material , physics , thermodynamics
In order to study the seismic behavior of precast concrete walls with different connection types for vertical reinforcements, the quasi‐static test on five concrete shear walls, including precast shear walls and cast‐in‐place shear wall was carried out. Test results showed that the failure mode of precast concrete walls was nearly the same as that of the cast‐in‐place concrete shear wall: in boundary elements at bottom of the shear wall, the vertical reinforcements yielded under tension, and the concrete was crushed under compression. The stress of vertical reinforcements could be effectively transferred by the sleeve‐mortar splicing. The specimen with hoop stirrup splicing had in‐plane rigid slide between the precast region and the cast‐in‐place region, whose ultimate drift ratio and energy dissipation capacity were lowest. The ultimate drift ratio of all specimens was larger than 1%. Based on results and analysis, recommendations for practical design for precast shear wall structures were proposed.