基于变参数模型的箱涵结构地震反应研究  

Research on Seismic Response of Box Culvert Structures Based on Variable Parameter Models

作　　者：徐军 XU Jun(Tengzhou Water Conservancy Construction and Installation Engineering Department,Zaozhuang 277599,Shandong,China)

机构地区：[1]滕州市水利建筑安装工程处,山东枣庄277599

出　　处：《水利科技与经济》2024年第5期83-88,共6页Water Conservancy Science and Technology and Economy

摘　　要：针对水利工程交通桥箱涵结构的抗震性能分析问题,选取淠河西岸水系综合治理(二期)工程(第2批)施工3标中的箱涵为研究对象,对其交通桥箱涵结构进行分析,构建有限元模型,设置变参数模型,分析细部结构对箱涵结构地震反应的影响。结果显示,加密顶板配筋以及合理设置腋角尺寸增加区间,可促进箱涵结构获得更大的单调加载受力,改善其抗震性能。当水平位移为8.79mm时,试验体2的水平荷载为108.78kN,比变参数模型3大8.57 kN。研究结果可为箱涵结构抗震设计优化提供参考与借鉴。Facing the problem of seismic performance analysis of box culvert structure of traffic bridge in water conservancy project,this paper selects the box culvert in the third bid of the comprehensive management of water system in the west bank of Pihe river(Phase II)project(the second batch),analyzes its box culvert structure,constructs a finite element model,sets up a variable parameter model,and analyzes the influence of detailed structure on the seismic response of box culvert structure.The results show that the reinforcement of the top plate and the reasonable setting of the increase interval of axillary angle size will promote the box culvert structure to obtain greater monotonic loading force and improve its seismic performance.When the horizontal displacement is 8.79mm,the horizontal load of test body 2 is 108.78kN,which is 8.57 kN larger than that of variable parameter model 3.The research method will promote the optimization of seismic design of box culvert structure.

关 键 词：变参数模型 箱涵结构 地震反应 抗震性能 交通桥 

分 类 号：TV544[水利工程—水利水电工程]