四川建材
四川建材
사천건재
SICHUAN BUILDING MATERIALS
2015年
4期
37-39
,共3页
T形截面%短肢剪力墙%Matlab软件%轴压比%配筋率
T形截麵%短肢剪力牆%Matlab軟件%軸壓比%配觔率
T형절면%단지전력장%Matlab연건%축압비%배근솔
T - shaped cross section%short - leg shear wall%Matlab%axial compressive force%rebar ratio
运用Matlab软件计算了轴压比n = N/fc A,受压与受拉纵筋面积比 As′/As 不同时构件几种弯矩与曲率,分析了T形截面短肢剪力墙曲率延性的影响, 绘制了M-ψ曲线. 表明随轴压比 n 增大, 延性降低, 随纵筋面积比As′/As 增大, 延性提高, 表明合理控制轴压比 n, 适当提高受压与受拉纵筋面积比是改善其抗震性能的有效措施.
運用Matlab軟件計算瞭軸壓比n = N/fc A,受壓與受拉縱觔麵積比 As′/As 不同時構件幾種彎矩與麯率,分析瞭T形截麵短肢剪力牆麯率延性的影響, 繪製瞭M-ψ麯線. 錶明隨軸壓比 n 增大, 延性降低, 隨縱觔麵積比As′/As 增大, 延性提高, 錶明閤理控製軸壓比 n, 適噹提高受壓與受拉縱觔麵積比是改善其抗震性能的有效措施.
운용Matlab연건계산료축압비n = N/fc A,수압여수랍종근면적비 As′/As 불동시구건궤충만구여곡솔,분석료T형절면단지전력장곡솔연성적영향, 회제료M-ψ곡선. 표명수축압비 n 증대, 연성강저, 수종근면적비As′/As 증대, 연성제고, 표명합리공제축압비 n, 괄당제고수압여수랍종근면적비시개선기항진성능적유효조시.
Bending moment and Curvature were calculated in matlab for shear walls, and different ratio of axial compressive force n = N/fc bh and the rebar ratio As′/As of short shear walls with T-shaped cross section are analyzed in this paper, and drew M-ψcurves. The results indicate that with the increase of ratio of axial compressive force, the ductility decrease. And the increase of rebar ratio As′/As , the ductility improved. There-fore, by decreasing As and increasing As′/As , the earthquake re-sistance performance of the shear walls can be made better.
