钢管混凝土拱桥试验模型相似理论研究

英文篇名：Similarity Theory of Vibration Tests of Concrete-filled Steel Tubular Arch Bridge
中文刊名：工程抗震与加固改造
英文刊名：Earthquake Resistant Engineering and Retrofitting
作者：郭月哲 ; 童申家
英文作者：Guo Yue-zhe ; Tong Shen-jia(Xi′an University of Architecture & Technology ; Xi′an 710055 ; China)
中文关键词：钢管混凝土拱桥 ; 相似理论 ; 截面转换公式 ; 基本频率 ; 模态分析
英文关键词：concrete-filled steel tubular arch bridge ; similarity theory ; transformation formula ; fundamental frequency ; modal analysis
出版日期：2011-06-05
机构：西安建筑科技大学土木工程学院;
年：2011
期：03
出版单位：工程抗震与加固改造

摘要

以某99m跨度钢管混凝土拱桥1/30试验模型的制作为例,探讨了以单一模型材料模拟原型结构中拱肋组合材料的截面转换公式,适用的相似系数体系及模型设计相似系数的取定。并依据相似系数,采用有限元软件建模、对比分析了试验模型、原型结构的基本振动频率和模态,验证了模型设计过程中截面转换公式的可行性和相似系数的正确性,为后期开展钢管混凝土拱桥抗震性能试验提供理论依据。
With an 1/30 model of a bridge which span is 99 meters as an example,the paper proposed the formula which can transfer the composite material into single,and advanced similarity theory study on Concrete-filled Steel Tubular Arch Bridge.At last,the finite element software is used to analysis the modal of prototype and model,and the feasibility of similarity theory is verified by comparing the data.It provides references for futhre study and test.

引文

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