轴压比对T形截面构件延性的影响  

Effect of axial compression ratio to ductility of T-shaped components

作　　者：孔祥娅 申冬建 孔祥松[2] 

机构地区：[1]河北省建筑设计研究院有限责任公司,河北保定071001 [2]中国矿业大学力建学院,北京100083

出　　处：《四川建筑科学研究》2010年第1期26-28,46,共4页Sichuan Building Science

摘　　要：采用数值积分法编制了对T形截面构件的延性非线性分析程序,通过对两种截面配筋形式的等肢T形截面构件在不同轴压比下的M—φ曲线进行的计算、分析,得出轴压比对T形截面的屈服曲率的影响较小,对极限曲率的影响较大;对等肢T形截面,荷载角为90°和180°时,延性较差,增加肢端纵筋或设置边缘构件,可以改善构件的截面延性。By numerical integration method for the preparation of the T-shaped components ductility nonlinear analysis process ,through reinforcement of the two sections of the form, such as T-shaped components in different axial compression ratio under the M-φ curve was calculated, analysis, obtained that the impact of axial compression ratio to the T-shaped yield curvature is smaller than the ultimate curvature,to the T-shaped components,the ductility is bad when load angle of 90 ° and 180 °, increase acromegaly longitudinal reinforcement or the provision of edge components ,the component＇s section can be improved ductility.

关 键 词：T形截面构件 轴压比 数值积分法 M-Φ曲线 

分 类 号：TU375.3[建筑科学—结构工程]