高海拔地区大体积混凝土温度应力仿真分析研究  

Study of thermal stress simulation analysis on mass concrete in high altitude area

作　　者：朱康[1] 楚段段[1] 周宏毅[1] 孙凡[1] 

机构地区：[1]青海大学水利电力学院,青海西宁810016

出　　处：《青海大学学报（自然科学版）》2015年第3期19-23,共5页Journal of Qinghai University(Natural Science)

摘　　要：为更好地研究实际工程中坝体裂缝情况、防止裂缝的产生,本文根据热传导理论,对高海拔地区大体积混凝土的温度应力进行有限元仿真计算,结果表明:裸露的混凝土表面极易产生拉应力,从而导致混凝土容易出现表面裂缝,影响坝体安全。这与实际工程中坝体裂缝出现的部位稳合,对工程设计及施工中防止裂缝的产生、保障坝体安全具有重要意义。To study the crack on the dam and prevent the crack at high altitude area , based on the theory of heat conduction , a simulation of temperature stress in mass concrete was taken using the fi-nite element .The bare concrete surface forms tensile stress easily , which leads to the cracks on the concrete＇s surface and influence the safety of dam .The simulated results match the facts well .The results have great importance in engineering design and construction in preventing the formation of cracks and protecting the safety of the dam .

关 键 词：大体积混凝土 温度应力 高海拔地区 

分 类 号：TU12[建筑科学—建筑理论]