| 单跨混凝土曲线梁桥地震反应简化计算方法 |
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| 引用本文： | 孙颖,谷音,卓卫东.单跨混凝土曲线梁桥地震反应简化计算方法[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： | 孙颖 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,350108 |
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| 基金项目： | 福州大学科研启动基金(0460-022374); 福建省高等学校新世纪优秀人才支持计划(TW2006-28) |
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| 摘 要： | 曲线梁桥兼具建筑美学以及能很好地适应地形、地物限制条件的优点,在国内外城市高架桥梁、立交工程及高等级公路中得到了广泛应用.然而,历次破坏性地震中,曲线梁桥屡有出现严重震害甚至垮塌的现象,表明其抗震设计问题迄今未得到很好的解决.本文以公路单跨混凝土曲线梁桥为研究对象,建立基准有限元模型,通过参数分析,系统研究了曲率半径、跨宽比、跨高比和跨径等主要设计参数对单跨曲线梁桥地震反应的影响规律,进而给出单跨曲线梁桥可采用“以直代曲”方法进行地震反应简化计算的条件,并提出适用于不规则单跨曲线梁桥地震反应的简化计算方法.
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| 关 键 词： | 曲线梁桥 地震反应 参数分析 简化计算方法 |
Simplified Calculation Method of Seismic Response for Single-span Concrete Curved Girder Bridges |
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| SUN Ying,GU Yin,ZHUO Wei-dong.Simplified Calculation Method of Seismic Response for Single-span Concrete Curved Girder Bridges[J].Journal of Huazhong University of Science and Technology,2011,28(3). |
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| Authors: | SUN Ying GU Yin ZHUO Wei-dong |
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| Affiliation: | SUN Ying,GU Yin,ZHUO Wei-dong(School of Civil Engineering,Fuzhou University,Fuzhou 350108,China) |
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| Abstract: | The curved girder bridges are used widely in city viaducts,interchanges and hig h-grade highway in China and abroad for its structural advantages and architect ural aesthetics.However,severe damage even collapses of curved girder bridges were often occurred during the past damage earthquakes.This implies that the pr oblem of seismic design of curved girder bridges has not been solved perfectly. In this paper,the finite element model of a typical single-span concrete curve d girder bridge is built for numeri... |
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| Keywords: | curved girder bridges seismic response par ameter analysis simplified calculation method |
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