| 混凝土楼板对钢框架梁柱节点抗震性能影响的试验研究 | |
| 石永久 ; 苏迪 ; 王元清 ; Shi Yongjiu ; Su Di ; Wang Yuanqing | |
| 2010-07-19 ; 2010-07-19 | |
| 关键词 | 框架节点 楼板组合作用 循环荷载试验 抗震性能 joints of frame composite effect cyclic loading experiment seismic performance TU398.9 |
| 其他题名 | An experimental study on the seismic performance of beam-column joints in steel frames with the effect of concrete slabs considered |
| 中文摘要 | 为了研究节点区混凝土楼板对钢框架梁柱节点抗震性能的影响,完成了4个不同构造形式的节点试件在低周循环荷载下的破坏试验,分析了节点构造与混凝土楼板配筋率等因素对节点承载力、转动刚度、极限转动能力、耗能能力、延性和极限破坏状态的影响。对节点破坏模式和滞回曲线的分析表明,保证焊接质量是避免节点脆性破坏的重要措施。采用长焊接孔的节点,使钢梁发生了局部屈曲破坏,既可减少局部应力集中,又可提高节点的延性,提高配筋率可以显著增强节点的抗弯承载力。另外,混凝土楼板的存在使节点在构造上存在不对称性,应该在节点设计中给予考虑。; The effect of concrete slabs on the seismic performance of beam-column joints of steel frames is examined through a series of cyclic loading experiments.Four beam-column joints with floor slabs were tested.The influences of joint details and reinforcement ratios on the load-carrying property,such as rotational stiffness and capacity,energy dissipation capacity,ductility and ultimate failure modes,were thoroughly assessed.From the experimental results,it is found that welding quality is the most important factor for joint ductility.The beam-column joints constructed with proper details and high reinforcement ratios exhibit excellent performance in both bending resistance and energy dissipation under cyclic loads.For those joints with long access holes failed by local buckling,the local stress concentration is reduced while the ductility is improved.Resistance and stiffness of joints increase with the increasing of slab reinforcement.It is found that the unsymmetrical profile of joints due to the existence of concrete slabs should be considered in joint design.; 国家自然科学基金(20578083) |
| 语种 | 中文 ; 中文 |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/75081]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | 石永久,苏迪,王元清,等. 混凝土楼板对钢框架梁柱节点抗震性能影响的试验研究[J],2010, 2010. |
| APA | 石永久,苏迪,王元清,Shi Yongjiu,Su Di,&Wang Yuanqing.(2010).混凝土楼板对钢框架梁柱节点抗震性能影响的试验研究.. |
| MLA | 石永久,et al."混凝土楼板对钢框架梁柱节点抗震性能影响的试验研究".(2010). |
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