(1 广西大学土木建筑工程学院，南宁 530004； 2 西安建筑科技大学土木工程学院，西安 710055)

［摘要］进行了4个配T形钢桁架和槽形钢桁架的空腹式配钢十字形SRC异形柱试件的低周反复加载试验，试验的变化参数有荷载加载方向、截面配钢方式、轴压比和剪跨比。通过试验揭示了空腹式配钢的十字形SRC异形柱的受力机理和破坏形态，获取了其滞回性能、开裂荷载及极限承载力，并分析了其破坏特点。在试验基础上，分析推导了其开裂荷载、极限承载能力的计算方法和计算公式，计算值与试验值吻合较好。

［关键词］型钢混凝土(SRC)；十字形柱；受力性能；强度计算

Mechanical behavior and strength calculation of steel reinforced concrete cross-shaped columns

Chen Zongping1, Xue Jianyang2, Zhao Hongtie2(1 College of Civil Engineering and Architecture, Guangxi University, Nanning 530004,China;

2 School of Civil Engineering, Xi’n University of Architecture and Technology, Xi’an 710055,China)

Abstract:In order to reveal the mechanical behavior of the steel reinforced concrete cross-shaped column, 4 specimens were designed for low cyclic reversed loading test, and the steel layout fashion included T-shaped steel truss and channel steel truss. Experimental parameters were loading direction, steel layout fashion, axial compressive ratio and shear span ratio. The failure patterns,mechanical behaviors, bearing