- 摘 要
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(1 湖南大學土木工程學院鋼結構研究所， 長沙 410082；2 湖南城市學院土木工程學院， 益陽 413099)
［摘要］為研究不銹鋼芯板一字形剪力墻的抗震性能，完成了在不同軸壓比、不同面板厚度以及不同芯管排布下，四個不銹鋼芯板一字形剪力墻構件的擬靜力試驗，研究了構件在低周往復荷載作用下的變形特征和破壞模式，分析了構件在水平荷載作用下滯回曲線、骨架曲線、荷載特征值、延性系數(shù)、剛度退化、承載力退化以及耗能能力等抗震性能。試驗結果表明：不銹鋼芯板一字形剪力墻發(fā)生壓彎破壞，且破壞形態(tài)均表現(xiàn)為構件根部位置的側板與面板發(fā)生局部屈曲；面板厚度越大，承載力越高；當構件面板與側板厚度相同時，可以保證面板與側板能夠協(xié)同工作，有較好的延性以及耗能能力；作為墻體兩側面板的連接件，芯管排布對構件抗震性能影響不大；增大軸壓比會抑制面板的鼓曲，但會降低墻身的延性與耗能能力。
［關鍵詞］不銹鋼芯板一字形剪力墻；抗震性能；延性；耗能能力；試驗研究
中圖分類號：TU398-2，TU317-1 文獻標識碼：A文章編號：1002-848X(2021)18-0001-08
Experimental research on seismic behavior of the I-shaped shear wall of stainless steel core plate
SHU Xingping1, XIONG Zhiqi1, ZHANG Zaihua2
(1 Steel Structural Institute of Civil Engineering College, Hunan University, Changsha 410082， China；2 College of Civil Engineering, Hunan City University, Yiyang 413099， China)
Abstract: In order to research the seismic behavior of the I-shaped shear wall of stainless steel core plate, four specimens were conducted by quasi-static tests under different axial compression ratio, different panel thickness and different core tube arrangement, to study the deformation characteristics and failure mode under low cycle reciprocating load, and analysis the load-displacement curves, skeleton curves, load characteristic values, ductility coefficient, stiffness degradation, bearing capacity degradation and energy dissipation capacity. The test results show that the I-shaped shear wall of stainless steel core plates all fail in a compression-bending mode, and the failure location and mode are the local buckling of the side plate and the panel at the root position on both sides of the test piece. The thicker the panel of the I-shaped shear wall of stainless steel core plate is, the larger the bearing capacity is. When the thickness of the panel of the test piece is the same as the side plate, the cooperation between the panel and the side plate of the I-shaped shear wall of stainless steel core plates can be ensured in the same work and have better ductility and energy dissipation capacity. As the connection of the panels on both sides of the wall, the arrangement of the core tubes has little influence on the seismic performance of the components. Increasing the axial compression ratio will inhibit the buckling of the panel, but will reduce the ductility and energy dissipation capacity of the wall.
Keywords:I-shaped shear wall of stainless steel core plate； seismic behavior； ductility； energy dissipation capacity； experimental research
*國家自然科學基金項目（5177081911）。
作者簡介：舒興平，博士，教授，博士生導師，Email：hulget@163.com。
