钢管再生混凝土拱桥结构抗震性能仿真试验研究  

On Seismic Responses and Seismic Performance of Recycled Concrete- filled Steel Tube Arch Bridge

作　　者：翁光远[1] 张丽萍[1] 魏锋[1] 王占锋[1] 刘洋[1] 

机构地区：[1]陕西交通职业技术学院公路工程系,陕西西安710018

出　　处：《陕西交通职业技术学院学报》2013年第2期1-5,41,共6页Journal of Shaanxi College of Communication Technology

基　　金：榆林市科技计划产学研合作项目校地合作（项目编号：社会发展类21）

摘　　要：用再生骨料混凝土作为钢管混凝土结构的填充材料，形成钢管再生混凝土结构，研究钢管再生混凝土拱桥拱肋的抗震性能。以某单跨中承式拱桥为工程背景，建立了计算模型结构，分析了模型结构的动力特性，计算了拱肋结构不同截面的弯矩响应峰值和轴力响应峰值，同时研究得出了不同再生骨料替代率的钢管再生混凝土结构5个屈服阶段的抗震评估曲线，通过比较模拟计算所得出的内力响应峰值和抗震评估曲线的关系，得出了拱肋结构的抗震性能。计算结果表明，钢管再生混凝土应用于拱肋结构有着较好的抗震性能，不同替代率的再生骨料对钢管混凝土拱桥结构拱肋抗震性能影响程度较小。Recycled aggregate concrete is filled in steel tube structure to form recycled concrete- filled steel tube structure, in the paper the recycled concrete - filled steel tube arch rib seismic performance is studied. With a single span half- through arch bridge as project background, the calculation model structure is firstly established,and then it~ dynamic characteristics is analyzed, the bending moment response peak and shaft force response peak of the arch rib structure different sections are calculated, at the same time, the seismic evaluation curves of different regeneration aggregate replacement ratio recycled concrete- filled structure steel five yield phases are researched, by comparing the relationship between the internal force response peak and the seismic evaluation curves, the arch rib structure seismic performance is concluded The calculation results shows that the recycled concrete applied to steel arch rib structure has good seismic performance, which has little influence that steel tube arch rib filled by recycled aggregate concrete with different substitution rate.

关 键 词：钢管再生混凝土 桥梁结构 抗震性能 分析 

分 类 号：U448.58[建筑科学—桥梁与隧道工程]