矩形钢管高性能混凝土偏压构件承载力试验研究
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摘要
随着高性能混凝土在实际工程中的不断推广应用,钢管高性能混凝土的力学性能也已引起工程界的广泛关注。以长细比和偏心率为变化参数,共进行了6个矩形钢管高性能混凝土偏心受压构件的试验研究。结果表明,钢管高性能混凝土试件在加载过程中表现出一定的脆性。利用纤维模型法计算了试验构件的极限承载力。最后,利用已有规程中规定的构件承载力计算公式验算了试验结果,二者基本吻合。
With the ever-increasing application of high-performance concrete in civil engineering,the demand for research of steel tubular columns filled with high-performance concrete is increasing nowadays.It was aimed at investigating the performance of eccentrically-loaded rectangular steel tubular columns filled with high-performance concrete.Six specimens were tested.The main variables explored in this test program included the slenderness ratio and the load eccentricity.Slightly brittleness was observed during the test,especially in the declining stage.Fiber model was used to calculate the bearing capacity of the specimens.The strengths of the specimens were verified using formulae recommended by current design code.The calculated results were basically agreed with the test results.
With the ever-increasing application of high-performance concrete in civil engineering,the demand for research of steel tubular columns filled with high-performance concrete is increasing nowadays.It was aimed at investigating the performance of eccentrically-loaded rectangular steel tubular columns filled with high-performance concrete.Six specimens were tested.The main variables explored in this test program included the slenderness ratio and the load eccentricity.Slightly brittleness was observed during the test,especially in the declining stage.Fiber model was used to calculate the bearing capacity of the specimens.The strengths of the specimens were verified using formulae recommended by current design code.The calculated results were basically agreed with the test results.
引文
1蔡绍怀.现代钢管混凝土结构.北京:人民交通出版社,2002
2钟善桐.钢管混凝土结构.北京:清华大学出版社,2003
3韩林海.钢管混凝土结构———理论与实践.北京:科学出版社,2004
4 Bradford M A.Design Strength of Slender Concrete-Filled Rectan-gular Steel Tubes.ACI Structural Journal,1996,93(2):229~235
5 Shakir-Khalil H,Zeghiche J.Experimental Behavior of ConcreteFilled Rolled Rectangular Hollow-Section Columns.The StructuralEngineer,1989,67(19):346~353
6 Shakir-Khalil H,Mouli M.Further Tests on Concrete-Filled Rect-angular Hollow-Section Columns.The Structural Engineer,1990,68(20):405~413
7杨有福,韩林海.矩形钢管混凝土构件抗弯力学性能的试验研究.地震工程与工程震动,2001,21(3):41~48
8韩林海,杨有福.矩形钢管混凝土轴心受压构件强度承载力的试验研究.土木工程学报,2001,34(4):22~31
9 DBJ 13-51-2003钢管混凝土结构技术规程
10陶忠,韩林海,黄宏.方中空夹层钢管混凝土偏心受压柱力学性能的研究.土木工程学报,2003,36(2):33~40
11余志武,丁发兴.混凝土受压力学性能统一计算方法.建筑结构学报,2003,24(4):41~46
12中国土木工程学会高强混凝土委员会.高强混凝土结构设计与施工指南.北京:中国建筑工业出版社,1995
2钟善桐.钢管混凝土结构.北京:清华大学出版社,2003
3韩林海.钢管混凝土结构———理论与实践.北京:科学出版社,2004
4 Bradford M A.Design Strength of Slender Concrete-Filled Rectan-gular Steel Tubes.ACI Structural Journal,1996,93(2):229~235
5 Shakir-Khalil H,Zeghiche J.Experimental Behavior of ConcreteFilled Rolled Rectangular Hollow-Section Columns.The StructuralEngineer,1989,67(19):346~353
6 Shakir-Khalil H,Mouli M.Further Tests on Concrete-Filled Rect-angular Hollow-Section Columns.The Structural Engineer,1990,68(20):405~413
7杨有福,韩林海.矩形钢管混凝土构件抗弯力学性能的试验研究.地震工程与工程震动,2001,21(3):41~48
8韩林海,杨有福.矩形钢管混凝土轴心受压构件强度承载力的试验研究.土木工程学报,2001,34(4):22~31
9 DBJ 13-51-2003钢管混凝土结构技术规程
10陶忠,韩林海,黄宏.方中空夹层钢管混凝土偏心受压柱力学性能的研究.土木工程学报,2003,36(2):33~40
11余志武,丁发兴.混凝土受压力学性能统一计算方法.建筑结构学报,2003,24(4):41~46
12中国土木工程学会高强混凝土委员会.高强混凝土结构设计与施工指南.北京:中国建筑工业出版社,1995
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