| 钢筋锈蚀对再生混凝土梁柱节点抗震性能的影响 |
| |
| 引用本文： | 耿欧,赵园园,陈辞.钢筋锈蚀对再生混凝土梁柱节点抗震性能的影响[J].彭城职业大学学报,2014(1):12-19. |
| |
| 作者姓名： | 耿欧 赵园园 陈辞 |
| |
| 作者单位： | [1]中国矿业大学江苏省土木工程环境灾变与结构可靠性重点实验室,江苏徐州221116 [2]中国矿业大学力学与建筑工程学院,江苏徐州221116 [3]中国建材国际工程集团有限公司深圳分公司,广东深圳518054 |
| |
| 基金项目： | 国家自然科学基金项目（50808173） |
| |
| 摘 要： | 为研究钢筋锈蚀后再生混凝土框架节点的破坏特征和抗震性能，对钢筋未锈蚀、锈蚀而保护层未开裂、平均锈胀裂缝宽度为0．2mm及平均锈胀裂缝宽度为0．4mm四种情况下的再生混凝土及普通混凝土框架边节点，进行了低周反复荷载对比试验；观察节点的受力过程及破坏形态，分析试件的荷载一位移滞回曲线、承载能力、强度和刚度退化、延性以及耗能能力等力学特性．结果表明：相同锈蚀程度下，再生混凝土节点的强度比普通混凝土节点小，再生混凝土节点的刚度退化比普通混凝土节点严重，再生混凝土节点表现出更好的延性，再生混凝土耗能较普通混凝土耗能弱；随着钢筋锈蚀程度的增加，再生混凝土与普通混凝土节点的强度降低，刚度减小，延性减小，耗能能力降低．
|
| 关 键 词： | 再生混凝土 钢筋锈蚀 抗震性能 框架节点 |
The Effect of Reinforcement Corrosion on the Seismic Performance of Recycled Concrete Frame Joints |
| |
| GENG Ou,ZHAO Yuan-yuan,CHEN Ci.The Effect of Reinforcement Corrosion on the Seismic Performance of Recycled Concrete Frame Joints[J].Journal of Pengcheng Vocational University,2014(1):12-19. |
| |
| Authors: | GENG Ou ZHAO Yuan-yuan CHEN Ci |
| |
| Institution: | 1. a. Key Laboratory of Environmental Impact and Structural Safety in Engineering, b. School of Mechanics ＆ Civil Engineering, China University of Mining ＆ Technology, Xuzhou 221116, China 2. China Triumph International Engineering Group Co. ,Ltd Shenzhen Branch, Shenzhen 518054, China) |
| |
| Abstract: | In order to investigate the failure modes and seismic behavior of recycled concrete frame joints after reinforcement corrosion, 8 specimens were tested under reversed cyclic loading. The failure process and patterns were obtained. The failure characteristics, mechanical behavior such as the load-dis- placement hysteretic loops,load carrying capacity, degradation of strength and rigidity, ductility and energy dissipation of the joints were analyzed. It is shown that the strength and the energy dissipation of recycled concrete joints were lower than that of the original concrete joints with the same degree of corrosion,and rigidity degradation of recycled concrete joints were worse than that of the original concrete, but the ductili- ty of recycled concrete joints were better than that of the original concrete joints. Also, strength,rigidity, ductility and energy dissipation of recycled concrete joints and original concrete joints were reduced as the degree of corrosion increased. |
| |
| Keywords: | recycled concrete reinforcement corrosion seismic behavior frame joint |
| 本文献已被 维普 等数据库收录！ |
|
