【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。更多还原

【Abstract】 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.更多还原