SRC柱-钢梁组合框架“强柱弱梁”破坏机制研究
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摘要
结合SRC框架振动台试验和Pushover分析结果,针对实际SRC柱-钢梁组合框架不易出现"强柱弱梁"破坏机制的问题进行了研究.从抗震规范对于钢筋混凝土框架和钢框架"强柱弱梁"机制控制的不协调和钢梁与SRC柱在抗震特性本身的差异两方面,论证了组合框架"强柱弱梁"破坏机制的实现在规范方面存在基础上的缺陷以及内力调整方面存在的不足,提出了钢梁-SRC柱组合框架"强柱弱梁"的实现宜按照极限承载力进行调整并以钢筋混凝土一级框架相应的内力调整系数进行设计的建议,指出了对SRC构件进行有限元模拟时需注意的问题.
Based on the result of shaking table test and Pushover analysis of SRC frame,the problem that strong column-weak beam failure mechanism is difficult to realize in practical composite frame is studied from two aspects: the regulations incoordination on strong column-weak beam between reinforced concrete frame and steel frame and the seismic properties difference between steel beam and SRC column,basic defect and deficiency of norm provision on internal force adjustment is demonstrated.Suggestions about internal force adjustment coefficient for strong column-weak beam realization of composite frame and the imulation of SRC members are proposed.
Based on the result of shaking table test and Pushover analysis of SRC frame,the problem that strong column-weak beam failure mechanism is difficult to realize in practical composite frame is studied from two aspects: the regulations incoordination on strong column-weak beam between reinforced concrete frame and steel frame and the seismic properties difference between steel beam and SRC column,basic defect and deficiency of norm provision on internal force adjustment is demonstrated.Suggestions about internal force adjustment coefficient for strong column-weak beam realization of composite frame and the imulation of SRC members are proposed.
引文
[1]中华人民共和国建设部.GB 50011—2001建筑抗震规范[S].北京:中国建筑工业出版社,2001.
[2]徐培福,薛彦涛,肖从真,等.高层型钢混凝土框筒混合结构抗震性能试验研究[J].建筑结构,2005,35(5):3-8.
[3]永春.刚度比与高宽比对SRC框架-RC筒体混合结构抗震性能影响的Push-over法分析[D].西安:西安建筑科技大学土木工程学院,2007.
[4]楚留声,白国良.型钢混凝土框架Pushover分析[J].地震工程与工程震动,2009,29(2):51-56.
[5]薛建阳,赵鸿铁.型钢混凝土框架模型的弹塑性地震反应分析[J].建筑结构学报,2000,21(4):28-33.
[6]马永欣,郑山锁.结构实验[M].北京:科学出版社,2001:208-233.
[7]薛建阳,赵鸿铁.型钢钢筋混凝土框架振动台试验及弹塑性动力分析[J].土木工程学报,2000,33(2):29-34.
[8]王元清,王锁军,吴杰,等.组合节点刚度对组合框架的抗震性能影响分析[J].郑州大学学报:工学版,2006,27(2):20-24.
[9]陈绍蕃.钢结构设计原理[M].北京:科学出版社,2003.
[10]楚留声.高烈度区型钢混凝土框架-钢筋混凝土筒体混合结构体系抗震性能研究[D].西安:西安建筑科技大学土木工程学院,2008.
[2]徐培福,薛彦涛,肖从真,等.高层型钢混凝土框筒混合结构抗震性能试验研究[J].建筑结构,2005,35(5):3-8.
[3]永春.刚度比与高宽比对SRC框架-RC筒体混合结构抗震性能影响的Push-over法分析[D].西安:西安建筑科技大学土木工程学院,2007.
[4]楚留声,白国良.型钢混凝土框架Pushover分析[J].地震工程与工程震动,2009,29(2):51-56.
[5]薛建阳,赵鸿铁.型钢混凝土框架模型的弹塑性地震反应分析[J].建筑结构学报,2000,21(4):28-33.
[6]马永欣,郑山锁.结构实验[M].北京:科学出版社,2001:208-233.
[7]薛建阳,赵鸿铁.型钢钢筋混凝土框架振动台试验及弹塑性动力分析[J].土木工程学报,2000,33(2):29-34.
[8]王元清,王锁军,吴杰,等.组合节点刚度对组合框架的抗震性能影响分析[J].郑州大学学报:工学版,2006,27(2):20-24.
[9]陈绍蕃.钢结构设计原理[M].北京:科学出版社,2003.
[10]楚留声.高烈度区型钢混凝土框架-钢筋混凝土筒体混合结构体系抗震性能研究[D].西安:西安建筑科技大学土木工程学院,2008.
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