配圆钢管钢骨混凝土柱轴压承载力计算及径厚比分析  

CALCULATION OF AXIAL COMPRESSION CAPACITY FOR SRC COLUMNS WITH CIRCLE STEEL TUBE AND ANALYSIS OF RADIUS-THICKNESS RATIO

作　　者：杜德润[1] 王修信[1] 李爱群[1] 陈丽华[1] 殷宝才[1] 

机构地区：[1]东南大学土木工程学院,南京210096

出　　处：《工业建筑》2005年第4期91-94,共4页Industrial Construction

摘　　要：通过考虑外围混凝土和箍筋对钢管以及核心混凝土的约束作用 ,根据钢管屈服推导出钢管与核心混凝土的实际受压极限强度 ,并建立配圆钢管钢骨混凝土柱轴压承载力计算公式 ,其计算值与试验结果吻合良好。在此基础上分析了钢管径厚比与承载力之间的关系 ,提出一些有用的建议 。The actual ultimate strength of steel tube and core concrete is given according to steel tube yielded, with a view of restriction of outer concrete and hoop bar on steel tube and core concrete. The calculation formula of axial compression capacity for SRC columns with circle steel tube is established. The calculation results agree well with the test results. On the basis of this, the relation between the ratio of radius-thickness and strength is also analyzed. Some advice is proposed for design.

关 键 词：钢骨混凝土柱 径厚比 圆钢管 承载力计算 核心混凝土 外围混凝土 轴压承载力 约束作用 极限强度 计算公式 试验结果 设计参考 计算值 箍筋 受压 基础 

分 类 号：TU398.9[建筑科学—结构工程]