超宽混凝土斜拉桥静动载试验研究

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英文篇名：Study of Static and Dynamic Load Tests of Very Wide Concrete Cable-stayed Bridge 作者：柳静 英文作者：LIU Jing;China Railway Bridge Science Research Institute Ltd.;State Key Laboratory for Health and Safety of Bridge Structure; 关键词：超宽箱梁 ; 主梁挠度 ; 动力特性 英文关键词：very wide concrete bridge;;main girder deflection;;dynamic characteristics 中文刊名：SKQB 英文刊名：Transportation Science & Technology 机构：中铁大桥科学研究院有限公司;桥梁结构健康与安全国家重点实验室; 出版日期：2017-12-15 出版单位：交通科技 年：2017 期：No.285 语种：中文; 页：SKQB201706010 页数：4 CN：06 ISSN：42-1611/U 分类号：40-43

摘要

为了解超宽混凝土斜拉桥的承载能力,以武汉西四环汉江特大桥主桥静动载试验为例,测试并分析了主梁挠度、主塔偏位及动力特性等参数,并结合超宽混凝土斜拉桥的特点对桥梁偏载系数和横梁受力情况进行了测试分析。试验结果表明,结构处于弹性工作状态,桥梁实际强度、刚度和承载能力满足设计及规范要求。
        To examine the load bearing capacity of the very wide concrete cable-stayed bridge,the static and dynamic load tests of the main bridge of Hanjiang river bridge on the West Fourth Ring road in Wuhan were taken as examples.The main girder deflection,pylon offsetting and dynamic properties of the bridge were tested and analyzed.In accordance with the properties of the very wide concrete cable-stayed bridge,the eccentric load coefficient of the bridge and the load bearing condition of the cross beam were tested and analyzed as well.The results of the tests demonstrate that the bridge is in elastic working condition,and the strength,rigidity and load bearing capacity meet the requirements of the design specification and related codes.

引文

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