| 钢筋混凝土框架柱增设剪力墙加固抗震性能分析 |
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| 引用本文： | 田芃,时旭东,张天申,王元清,张延年,杨光. 钢筋混凝土框架柱增设剪力墙加固抗震性能分析[J]. 四川建筑科学研究, 2014, 0(2): 74-78 |
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| 作者姓名： | 田芃 时旭东 张天申 王元清 张延年 杨光 |
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| 作者单位： | 沈阳建筑大学土木工程学院;清华大学土木工程安全与耐久教育部重点实验室;清华大学结构工程检测中心; |
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| 基金项目： | “十一五”国家科技支撑计划重大项目课题(2006BAJ03A02) |
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| 摘 要： | 为了研究轴压比、剪力墙厚度及长度对增设剪力墙加固的钢筋混凝土框架柱在单调荷载作用下抗震性能的影响,在考虑加固柱的二次受力特性的前提下,采用数值模拟的方法分析加固柱的P-△曲线和刚度退化曲线.结果表明：随着轴压比的增大,加固柱抗侧承载力增加,刚度、延性降低;剪力墙厚度及长度的增大使加固柱的承载力得到了提高,但高轴压比下,通过增加剪力墙厚度及长度加固钢筋混凝土框架柱会使加固后柱的延性降低,刚度退化程度加大.
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| 关 键 词： | 加固 增设剪力墙 有限元分析 P-△曲线 刚度退化 |
Seismic behavior analysis of RC frame columns reinforced by additional RC shear wall |
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| TIAN Peng,SHI Xudong,ZHANG Tianshen,WANG Yuanqing,ZHANG Yannian,YANG Guang. Seismic behavior analysis of RC frame columns reinforced by additional RC shear wall[J]. Building Science Research of Sichuan, 2014, 0(2): 74-78 |
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| Authors: | TIAN Peng SHI Xudong ZHANG Tianshen WANG Yuanqing ZHANG Yannian YANG Guang |
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| Affiliation: | 1. College of Civil Engineering,Shenyang Jianzhu University,Shenyang 110168,China; 2. Key Laboratory of Civil Engineering Safety and Durability of China Education Ministry, Tsinghua University,Beijing 100084,China; 3. Detecting Center of Structure Engineering of Tsinghua University,Beijing 100084,China) |
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| Abstract: | in order to analyze the influence of axial compression ratio,thickness of shear wall and length of additional shear wall on the seismic behavior of reinforced RC frame columns strengthening by additional shear wall, which the columns were under monotonous load. Based on the premise of considering the secondary mechanical characteristics of reinforced columns,the method of numerical simulation was adopted to do analysis of P - △ curve of reinforced columns and curve of stiffness degradation. The results indicated that the load-carrying capacity of reinforced columns increased with the increase of axial compression ratio,while stiffness and ductility decreased. The bearing capacity of reinforced columns were also improved with the increase of thickness arid length of shear wall, but strengthening RC frame columns by increasing the thickness and length of shear wall raider high axial compression ratio reduced the ductility of the specimen and degree of stiffness degradation increased. |
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| Keywords: | strengthen add shear wall finite element analysis P - △ curve ductility decrease |
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