预应力矩形钢管混凝土梁力学性能研究

英文篇名：RESEARCH ON MECHANICAL BEHAVIORS OF PRESTRESSED CONCRETE-FILLED RECTANGULAR STEEL PIPE BEAM
中文刊名：工业建筑
英文刊名：Industrial Construction
作者：马星 ; 徐祝岭
英文作者：Ma Xing(Department of Engineering Mechanics and Technology ; Tongji University\ Shanghai\ 200092) Xu Zhuling(CPLA Navy East Sea Project Design Institute\ Shanghai\ 200083)
中文关键词：预应力矩形钢管混凝土 ; 极限弯曲强度 ; 挠度
英文关键词：prestressed concrete\|filled steel rectangular pipe\ ultimate bending strength\ deflection
出版日期：2003-01-20
机构：同济大学工程力学与技术系,海军东海工程设计院上海200092 ,上海200083
年：2003
期：01
出版单位：工业建筑

摘要

研究预应力矩形钢管混凝土梁极限承载力实用计算公式及有限元计算方法 ,并对混凝土强度等级、含钢率、预应力等参数进行分析。计算结果表明 ,矩形钢管混凝土梁受拉区配筋可以大幅度提高构件极限承载力 ,同时施加预应力可以有效减小构件挠度
A practical formula for ultimate bearing capacity of the prestressed concrete\|filled rectangular steel pipe beam is deduced and the finite element method is studied in this paper.Parameters including concrete grade,steel ratio,prestress are analyzed.Calculation results show that placing steel bar in the tensile area will improve the ultimate bearing capacity of the concrete\|filled rectangular steel pipe beam, and meanwhile prestressing will effectively reduce its deflection.

引文

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