Study on the Influence of Connection Type on Seismic Performance of Precast Concrete Wall
In order to compare and analyze the mechanical properties of precast concrete walls under different connection conditions,four kinds of concrete shear walls were designed in this paper,and the static loading tests were carried out on them,and the failure modes,dissipation ca-pacity and deformation characteristics of the four kinds of concrete shear walls were compared and analyzed.The results show that the crack width of precast concrete wall is relatively narrow but the number of cracks is more than that of cast-in-place concrete wall.The top yield dis-placement of cast-in-place concrete shear wall is 9.6 mm,the top limit displacement is 82.3 mm,and the displacement ductility coefficient is 8.5.The top yield displacement of precast concrete shear wall connected with vertical reinforcement by stirrup is 5.4 mm,the top limit dis-placement is 52.3 mm,and the displacement ductility coefficient is 9.6.The precast concrete shear wall connected with vertical reinforcement by stirrup has narrower cracks,more cracks,the largest deformation resistance,better ductility and stronger dissipation ability.
Prefabricated building engineeringConcrete wallStatic testSeismic technologyMechanical property
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