| 基于IDA和纤维模型的高墩大跨连续刚构桥梁地震反应分析 |
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| 引用本文： | 谷音,卓卫东. 基于IDA和纤维模型的高墩大跨连续刚构桥梁地震反应分析[J]. 华中科技大学学报(城市科学版), 2011, 28(3) |
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| 作者姓名： | 谷音 卓卫东 |
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| 作者单位： | 福州大学土木工程学院,福建福州,350002 |
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| 基金项目： | 福建省自然科学基金(2010J01287) |
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| 摘 要： | 基于纤维模型的有限元方法,建立了典型高墩大跨连续刚构桥的非线性数值分析模型.采用动力增量分析法,即IDA方法对结构进行了非线性动力时程分析,分别探讨了在纵桥向和横桥向地震作用下高墩连续刚构桥梁结构的破坏规律、最大位移和最大曲率的关系,高阶振型效应对高墩大跨连续刚构桥墩身内力和变形的影响及位移和曲率沿墩高变化的规律.
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| 关 键 词： | 高墩大跨连续刚构桥 IDA方法 损伤指标 纤维模型 |
Study on Seismic Vulnerability of Long-span Continuous Rigid Frame Bridge with High Pier |
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| GU Yin,ZHUO Wei-dong. Study on Seismic Vulnerability of Long-span Continuous Rigid Frame Bridge with High Pier[J]. Journal of Huazhong University of Science and Technology, 2011, 28(3) |
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| Authors: | GU Yin ZHUO Wei-dong |
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| Affiliation: | GU Yin,ZHUO Wei-dong(School of Civil Engineering,Fuzhou University,Fuzhou 350002,China) |
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| Abstract: | Based on the fiber model,the typical nonlinear numerical analysis model of long-span continuous rigid frame bridge with high pier is presented.IDA method is adopted for the nonlinear dynamic history analysis for the structure.The failur e law and the relationship between maximum displacement and maximum curvature of the element are discussed under earthquake in longitudinal and transversal dire ction respectively.The internal force and deformation of piers,affecting by th e high order vibration,and the disp... |
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| Keywords: | long-span continuous rigid frame bridge with high pier IDA method damage index fiber model |
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