混凝土箱涵施工工艺及结构受力分析  

Concrete Box Culvert Construction Technology and Structural Force Analysis

作　　者：刘大杨 LIU Dayang(The First Construction Company of CCCC Second Harbor Engineering Co.,Ltd.,Wuhan 430056,Hubei,China)

机构地区：[1]中交二航局第一工程有限公司,湖北武汉430056

出　　处：《工程技术研究》2025年第3期17-19,共3页Engineering and Technological Research

摘　　要：文章依托鄂州航空物流产业园政府和社会资本合作项目,系统介绍了钢筋混凝土箱涵从基础换填到土体回填的各工序,通过有限元软件建立三维箱涵模型,分析了交通循环荷载作用下的箱涵动力响应及受力特征,并评估了箱涵结构的安全性。研究结果表明,随着循环荷载的反复,箱涵逐渐从弹性状态转为屈服状态,滞回环面积逐渐增大,残余变形逐渐增大;骨架曲线说明箱涵并未发生明显的损伤,箱涵各位置的主应力均小于箱涵的抗拉和抗压强度。Based on the cooperation project between the government and social capital of Ezhou Aviation Logistics Industrial Park,this paper systematically introduces the various procedures of reinforced concrete box culvert from foundation replacement to soil backfill,establishes a threedimensional box culvert model by finite element software,analyzes the dynamic response and force characteristics of box culvert under the action of traffic cyclic loading,and evaluates the safety of box culvert structure.The results show that with the repeated cyclic loading,the box culvert gradually changes from the elastic state to the yield state,the hysteresis loop area gradually increases,and the residual deformation gradually increases;the skeleton curve shows that there is no obvious damage to the box culvert,and the principal stress at each position of the box culvert is less than the tensile and compressive strength of the box culvert.

关 键 词：混凝土箱涵 有限元分析 结构受力 

分 类 号：U449.82[建筑科学—桥梁与隧道工程]