搭扣拼装式渠基混凝土板结构冻胀破坏受力分析  

Mechanics Analysis on Frost Heave Damage of Concrete Slab Structure of Canal Foundation Assembled with Hasp

作　　者：徐赛军 高建强[1] 王珂 张梦鸽 陈洁雯 王刚 Xu Saijun;Gao Jianqiang;Wang Ke;Zhang Mengge;Chen Jiewen;Wang Gang(School of Civil Engineering,Lanzhou Jiaotong University,Lanzhou,Gansu 730070)

机构地区：[1]兰州交通大学土木工程学院,甘肃兰州730070

出　　处：《吉林水利》2022年第4期9-13,共5页Jilin Water Resources

基　　金：甘肃省科技计划资助项目(Grant No.21JR1RA237);兰州交通大学青年基金项目(Grant No.2019021)。

摘　　要：为了探讨预制“搭扣”拼装式渠基混凝土板的受力和破坏情况,本文基于传统对接法水渠混凝土板受力分析模型,通过合理假定与简化并运用力学基本原理提出了“搭扣”拼装式渠基混凝土板的力学模型,推导得出渠坡以及渠底衬砌板的最大弯矩计算公式,只要根据有关规范或试验确定最大冻胀力和最大冻结力,则混凝土预制板的内力即可求解。In order to explore the stress and failure of prefabricated“clasp”assembled canal foundation concrete slab,this paper is based on the stress analysis model of canal concrete slab by traditional docking method.Through reasonable assumption and simplification and using the basic principle of mechanics,the mechanical model of“clasp”assembled canal foundation concrete slab is put forward,and the formulas for calculating the maximum bending moment of canal slope and canal bottom lining slab are derived.As long as the maximum frost heaving force and the maximum freezing force are determined according to the relevant codes or tests,the internal force of the precast concrete slab can be solved.

关 键 词：搭扣拼装式 渠基混凝土板 冻胀 力学模型 

分 类 号：U45[建筑科学—桥梁与隧道工程]