架空梁式圆管横向结构内力计算的弹性理论解析法  

An elastic theory based analytical method for calculation of internal force of transverse structure of beam-supported circular pipes

作　　者：蔡勇斌 蔡勇平 蔡晓鸿 CAI Yongbin;CAI Yongping;CAI Xiaohong(Ji'an Municipal Water Conservancy Bureau)

机构地区：[1]吉安市水利局,江西吉安343000 [2]吉安市水利水电规划设计院,江西吉安343000

出　　处：《大坝与安全》2022年第2期18-22,共5页Dam & Safety

摘　　要：采用弹性力学圆弧曲梁计算模式,建立了架空梁式圆管受自重、均匀内水压力和满管水重荷载作用,并考虑圆截面剪力作用下的弹性圆弧曲梁控制微分方程,给出了架空梁式圆管横向结构内力与变位的弹性理论精确解计算式。Based on the calculation model for circular curved beam in elasticity mechanics,the govern⁃ing differential equation of elastic circular curved beam under the effect of dead weight,uniform internal water pressure,full tube water load and shearing force on circular section is established,and the exact formula of elastic theoretical solution for internal force and displacement of transverse structure of over⁃head beam-supported circular pipe is given.

关 键 词：架空圆管 圆弧曲梁 内力 精确解 

分 类 号：TV672[水利工程—水利水电工程]