钢管混凝土边框内藏钢板组合剪力墙正截面受弯性能分析
|
摘要
提出了钢管混凝土边框内藏钢板的组合剪力墙,进行了模型抗震性能试验,表明其抗震性能良好。为进一步分析该组合剪力墙的受力特点,基于试验研究,引入了平截面假定,提出了正截面受弯承载力简化计算模型,给出了用条带法计算受弯承载力的公式并编制了计算程序。计算分析了钢管壁厚、内藏钢板厚度、混凝土强度等级对剪力墙受弯承载力的影响,计算结果与实测值符合较好。研究表明:增大钢管壁厚,剪力墙抗弯承载力明显提高;增大内藏钢板厚度,剪力墙承载力提高,但比增大钢管壁厚提高的效率低;混凝土强度等级提高,剪力墙抗弯承载力有一定的提高,但提高幅度随着边框钢管壁厚增大而减小;钢管壁厚、内藏钢板厚度、墙体截面厚度、混凝土强度应合理匹配,以充分发挥该组合剪力墙的抗震效能。
A composite shear wall with concrete filled steel tube(CFST) boundary columns and embedded steel plates was proposed.The test shows it has good seismic behavior.In order to investigate its stress characteristic,the plane cross-section assumption was introduced based on the test study.The simplified calculation model for the normal section flexural load-bearing capacity was put forward.The formulae of stripe method were given and the corresponding calculation program was complied.The effect of the thickness of steel tube,thickness of the embedded steel plate and the concrete strength on the flexural load-bearing capacity was discussed.The calculated results are in good agreement with the test results.Results show that: the flexural load-bearing capacity is improved greatly with the increasing of the thickness of steel tube;the load-bearing capacity is improved with the increasing of the thickness of steel plate,but it has lower efficiency than increasing the thickness of steel tube;the flexural load-bearing capacity is improved marginally with the increasing of concrete strength,but the increasing amplitude decreases with the increasing of steel tube thickness;the parameters,such as the thickness of steel tube,thickness of embedded steel plate,the thickness of wall and concrete strength,should be set optimally so as to give full play to the seismic efficiency of composite shear wall.
A composite shear wall with concrete filled steel tube(CFST) boundary columns and embedded steel plates was proposed.The test shows it has good seismic behavior.In order to investigate its stress characteristic,the plane cross-section assumption was introduced based on the test study.The simplified calculation model for the normal section flexural load-bearing capacity was put forward.The formulae of stripe method were given and the corresponding calculation program was complied.The effect of the thickness of steel tube,thickness of the embedded steel plate and the concrete strength on the flexural load-bearing capacity was discussed.The calculated results are in good agreement with the test results.Results show that: the flexural load-bearing capacity is improved greatly with the increasing of the thickness of steel tube;the load-bearing capacity is improved with the increasing of the thickness of steel plate,but it has lower efficiency than increasing the thickness of steel tube;the flexural load-bearing capacity is improved marginally with the increasing of concrete strength,but the increasing amplitude decreases with the increasing of steel tube thickness;the parameters,such as the thickness of steel tube,thickness of embedded steel plate,the thickness of wall and concrete strength,should be set optimally so as to give full play to the seismic efficiency of composite shear wall.
引文
[1]吕西林,董宇光,丁子文.截面中部配置型钢的混凝土剪力墙抗震性能研究[J].地震工程与工程振动,2006,26(6):101-107.LU Xilin,DONG Yuguang,DING Ziwen.Study on seismic behavior of steel reinforced concrete wall[J].Earthquake Engineering and EngineeringVibration,2006,26(6):101-107.
[2]聂建国,樊健生,黄远,等.钢板剪力墙的试验研究[J].建筑结构学报,2010,31(9):1-8.NIE Jianguo,FAN Jiansheng,HUANG Yuan,et al.Experimental research on steel plate shear wall[J].Journal of Building Structures,2010,31(9):1-8.
[3]曹万林,王敏,王绍合,等.矩形钢管混凝土边框组合剪力墙及筒体结构抗震研究[J].工程力学,2008,25(S1):58-70.CAO Wanlin,WANG Min,WANG Shaohe,et al.Aseismic research of composite shear wall and core walls with rectangular concrete filled steeltube columns[J].Engineering Mechanics,2008,25(S1):58-70.
[4]曹万林,张文江,张建伟,等.钢管混凝土边框内藏钢板组合剪力墙抗震研究[J].土木工程管理学报,2011,28(3):219-225.CAO Wanlin,ZHANG Wenjiang,ZHANG Jianwei,et al.Seismic Research and Application on Embedded Steel Plate Concrete Shear Wall withConcrete Filled Steel Tube Columns[J].Journal of Civil Engineering and Management,2011,28(3):219-225.
[5]廖飞宇,陶忠.带不同类型边框柱的剪力墙力学性能试验[J].工业建筑,2007,37(12):31-34,118.LIAO Yu,TAO Zhong.Experiments on behavior of RC shear walls framed with different kinds of columns[J].Industrial Construction,2007,37(12):31-34,118.
[6]钱稼茹,江枣,纪晓东.高轴压比钢管混凝土剪力墙抗震性能试验研究[J].建筑结构学报,2010,31(7):40-48.QIAN Jiaru,JIANG Zao,JI Xiaodong.Experimental study on seismic behavior of steel tube-reinforced concrete composite shear walls with highaxial compressive load ratio[J].Journal of Building Structures,2010,31(7):40-48.
[7]Astaneh-Asl A,Zhao Q H.Cyclic behavior of steel shear wall systems[C]//Annual Stability Conference.Seattle:Structural Stability ResearchCouncil,Bethlehem,PA,18015-3191,United States.2002,21-36.
[8]陈国栋,郭彦林.十字加劲钢板剪力墙的抗剪极限承载力[J].建筑结构学报,2004(1):71-78.CHEN Guodong,GUO Yanlin.Ultimate shear-carrying capacity of steel plate shear wall with cross stiffeners[J].Journal of Building Structures,2004,25(1):71-78.
[9]过镇海.钢筋混凝土原理[M].北京:清华大学出版社,1999:16-21.GuoZhenhai.Theory of steel reinforced concrete[M].Beijing:Tsinghua University Press,1999:16-21.
[2]聂建国,樊健生,黄远,等.钢板剪力墙的试验研究[J].建筑结构学报,2010,31(9):1-8.NIE Jianguo,FAN Jiansheng,HUANG Yuan,et al.Experimental research on steel plate shear wall[J].Journal of Building Structures,2010,31(9):1-8.
[3]曹万林,王敏,王绍合,等.矩形钢管混凝土边框组合剪力墙及筒体结构抗震研究[J].工程力学,2008,25(S1):58-70.CAO Wanlin,WANG Min,WANG Shaohe,et al.Aseismic research of composite shear wall and core walls with rectangular concrete filled steeltube columns[J].Engineering Mechanics,2008,25(S1):58-70.
[4]曹万林,张文江,张建伟,等.钢管混凝土边框内藏钢板组合剪力墙抗震研究[J].土木工程管理学报,2011,28(3):219-225.CAO Wanlin,ZHANG Wenjiang,ZHANG Jianwei,et al.Seismic Research and Application on Embedded Steel Plate Concrete Shear Wall withConcrete Filled Steel Tube Columns[J].Journal of Civil Engineering and Management,2011,28(3):219-225.
[5]廖飞宇,陶忠.带不同类型边框柱的剪力墙力学性能试验[J].工业建筑,2007,37(12):31-34,118.LIAO Yu,TAO Zhong.Experiments on behavior of RC shear walls framed with different kinds of columns[J].Industrial Construction,2007,37(12):31-34,118.
[6]钱稼茹,江枣,纪晓东.高轴压比钢管混凝土剪力墙抗震性能试验研究[J].建筑结构学报,2010,31(7):40-48.QIAN Jiaru,JIANG Zao,JI Xiaodong.Experimental study on seismic behavior of steel tube-reinforced concrete composite shear walls with highaxial compressive load ratio[J].Journal of Building Structures,2010,31(7):40-48.
[7]Astaneh-Asl A,Zhao Q H.Cyclic behavior of steel shear wall systems[C]//Annual Stability Conference.Seattle:Structural Stability ResearchCouncil,Bethlehem,PA,18015-3191,United States.2002,21-36.
[8]陈国栋,郭彦林.十字加劲钢板剪力墙的抗剪极限承载力[J].建筑结构学报,2004(1):71-78.CHEN Guodong,GUO Yanlin.Ultimate shear-carrying capacity of steel plate shear wall with cross stiffeners[J].Journal of Building Structures,2004,25(1):71-78.
[9]过镇海.钢筋混凝土原理[M].北京:清华大学出版社,1999:16-21.GuoZhenhai.Theory of steel reinforced concrete[M].Beijing:Tsinghua University Press,1999:16-21.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心