钢纤维对无粘结部分预应力高强混凝土扁梁柱板边节点抗震性能的影响
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摘要
通过2个无粘结部分预应力高强混凝土扁梁柱板边节点在低周反复荷载下的拟静力试验,研究了节点核心区钢纤维对扁梁柱板边节点的破坏形态、承载力、延性及耗能能力等抗震性能的影响。研究表明钢纤维能改善无粘结部分预应力高强混凝土扁梁柱板边节点的破坏形态,然而,由于节点在柱侧梁端产生塑性铰破坏,在节点核心区掺入钢纤维对延性、承载力和耗能能力提高不明显。
Quasi-static cyclic lateral load test results of two unbonded partially prestressed high-strength concrete exterior flat beam-column-slab subassemblages were presented.This paper emphasizes the effects of nodal region steel fiber on failure pattern,loading capability,ductility,energy dissipation.It can be seen that steel fiber can improve the failure pattern of unbonded partially prestressed high-strength concrete exterior flat beam-column-slab subassemblages,but don't have obvious improvement on loading capability,ductility and energy dissipation because the wide beam plastic-hinge failure is appeared at the side of the column.
Quasi-static cyclic lateral load test results of two unbonded partially prestressed high-strength concrete exterior flat beam-column-slab subassemblages were presented.This paper emphasizes the effects of nodal region steel fiber on failure pattern,loading capability,ductility,energy dissipation.It can be seen that steel fiber can improve the failure pattern of unbonded partially prestressed high-strength concrete exterior flat beam-column-slab subassemblages,but don't have obvious improvement on loading capability,ductility and energy dissipation because the wide beam plastic-hinge failure is appeared at the side of the column.
引文
[1]S.R.Mirghaderi,M.Dehghani Renani.The rigid seismic con-nection of continuous beams to column[J],Journal of ConstructionalSteel Research,Volume 64,Issue 12,December 2008,Pages 1516-1529.
[2]T.Shiratori,A.J.M.Leijten,K.Komatsu.The structural behav-iour of a pre-stressed column beam connection as an alternative tothe traditional timber joint system[J].Engineering Structures,Vol-ume 31,Issue 11,November 2009,Pages 2526-2533.
[3]代红军,季韬.钢管混凝土柱-钢筋混凝土环扁梁节点性能试验研究[J].地震工程与工程振动,2008(10):12-15.
[4]季韬.扁梁柱节点受力性能的研究[D].杭州:浙江大学土木工程系,1999.
[5]林廷伟.无粘结部分预应力高强混凝土扁梁柱板边节点抗震性能的研究[D].福州大学硕士学位论文,2005.
[6]蒋永生,陈忠范,周绪平,等.整浇梁板的框架节点抗震研究[J].建筑结构学报,1994(15)6:11-16.
[2]T.Shiratori,A.J.M.Leijten,K.Komatsu.The structural behav-iour of a pre-stressed column beam connection as an alternative tothe traditional timber joint system[J].Engineering Structures,Vol-ume 31,Issue 11,November 2009,Pages 2526-2533.
[3]代红军,季韬.钢管混凝土柱-钢筋混凝土环扁梁节点性能试验研究[J].地震工程与工程振动,2008(10):12-15.
[4]季韬.扁梁柱节点受力性能的研究[D].杭州:浙江大学土木工程系,1999.
[5]林廷伟.无粘结部分预应力高强混凝土扁梁柱板边节点抗震性能的研究[D].福州大学硕士学位论文,2005.
[6]蒋永生,陈忠范,周绪平,等.整浇梁板的框架节点抗震研究[J].建筑结构学报,1994(15)6:11-16.
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