L形缀板式方钢管混凝土组合柱轴压性能试验研究  

EXPERIMENTAL STUDY ON AXIAL COMPRESSION PERFORMANCE OF CONCRETE FILLED STEEL TUBULAR COMPOSITE COLUMN WITH L-SHAPED SPLIT-PLATE

作　　者：苏振东 杨晓明[1] 布雪静 SU Zhendong;YANG Xiaoming;BU Xuejing(College of Civil Engineering,Qingdao University of Technology,Shandong Qingdao 266033,China)

机构地区：[1]青岛理工大学土木工程学院,山东青岛266033

出　　处：《低温建筑技术》2020年第1期65-67,71,共4页Low Temperature Architecture Technology

摘　　要：在L形方钢管混凝土组合异形柱基础上,设计L形缀板式方钢管混凝土组合柱,对L形方钢管混凝土组合柱进行轴压荷载试验,研究在轴压荷载作用下缀板对L形钢管混凝土组合柱承载力和破坏形态的影响。由试验结果可知,焊接缀板有效地提升了L形钢管混凝土组合柱的整体性和轴压承载力,且当缀板面积超过60%后承载力提升不明显,综合比较缀板面积为60%时构件性价比最高。研究成果为后期L形缀板式钢管混凝土组合柱的压弯和抗震等性能研究提供了基础。On the foundation of L-shaped square concrete-filled steel tube composite special-shaped column,an L-shaped basting square concrete filled steel tube composite column,the axial load test was carried out on the L-shaped battened square concrete-filled steel tube composite column is designed,the influence of the battening plate on the bearing capacity and failure mode of l-shaped concrete-filled steel tube composite columns under axial loading is studied.According to the test results,the welded bailing plate effectively improves the integrity and axial bearing capacity of L-shaped concrete-filled steel tube composite column,and the bearing capacity is not significantly improved after the bailing plate area exceeds 60%,while the component is the most cost-effective when the bailing plate area is 60%.The results provide a basis for the research on the bending and seismic behavior of L-shaped composite concrete filled steel tube columns.

关 键 词：L形组合柱 缀板式 方钢管混凝土 轴压试验 

分 类 号：TU398.9[建筑科学—结构工程]