钢筋混凝土高墩抗震性能评价指标
发布时间：2018-08-07 18:22
【摘要】：基于性能的抗震设计是结构抗震设计规范的主要发展方向,其中结构抗震性能水准的定义及其性能指标的选择和量化对结构抗震性能评价至关重要。根据钢筋混凝土高墩的地震反应特性,确定采用曲率延性系数作为性能参数,并给出桥墩在地震作用下曲率延性系数对应各性能水准的量化值。分别以位移延性系数、位移角限值以及曲率延性系数作为性能评价指标,采用增量动力分析法对桥墩进行抗震性能研究,分析结果表明:对于钢筋混凝土高墩而言,曲率延性指标更为合理可靠,尤其是在强震作用下能够更准确反映墩柱的内部破坏情况。
[Abstract]:Performance-based seismic design is the main development direction of seismic design code for structures. The definition of seismic performance level of structures and the selection and quantification of performance indexes are very important for seismic performance evaluation of structures. According to the seismic response characteristics of reinforced concrete high pier, the curvature ductility coefficient is determined as the performance parameter, and the quantitative value of curvature ductility coefficient corresponding to each performance level under seismic action of bridge pier is given. Taking displacement ductility coefficient, displacement angle limit value and curvature ductility coefficient as performance evaluation indexes, the seismic behavior of pier is studied by incremental dynamic analysis method. The results show that: for reinforced concrete high pier, The curvature ductility index is more reasonable and reliable, especially under strong earthquake.
【作者单位】： 重庆大学土木工程学院;重庆大学山地城镇建设与新技术教育部重点实验室;
【基金】：重庆市自然科学基金资助项目(CSTC,2011BB6072) 国家自然科学基金资助项目(50908245) 中央高校基本科研业务费资助项目(CDJZR 12205528)
【分类号】：U442.55
[Abstract]:Performance-based seismic design is the main development direction of seismic design code for structures. The definition of seismic performance level of structures and the selection and quantification of performance indexes are very important for seismic performance evaluation of structures. According to the seismic response characteristics of reinforced concrete high pier, the curvature ductility coefficient is determined as the performance parameter, and the quantitative value of curvature ductility coefficient corresponding to each performance level under seismic action of bridge pier is given. Taking displacement ductility coefficient, displacement angle limit value and curvature ductility coefficient as performance evaluation indexes, the seismic behavior of pier is studied by incremental dynamic analysis method. The results show that: for reinforced concrete high pier, The curvature ductility index is more reasonable and reliable, especially under strong earthquake.
【作者单位】： 重庆大学土木工程学院;重庆大学山地城镇建设与新技术教育部重点实验室;
【基金】：重庆市自然科学基金资助项目(CSTC,2011BB6072) 国家自然科学基金资助项目(50908245) 中央高校基本科研业务费资助项目(CDJZR 12205528)
【分类号】：U442.55
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相关博士学位论文 前1条
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【共引文献】
相关博士学位论文 前10条
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