考虑太阳辐射作用的砌体结构温度场  

Temperature field of masonry structure considering solar radiation

作　　者：金伟良[1] 叶甲淳[1] 邹道勤[1] 严家熺[1] 徐铨彪[1] 潘金龙[1] 

机构地区：[1]浙江大学土木工程系,浙江杭州310027

出　　处：《浙江大学学报（工学版）》2002年第5期577-581,共5页Journal of Zhejiang University：Engineering Science

基　　金：建设部科研项目;国家教育部骨干教师资助项目;杭州市墙改科研项目

摘　　要：为探讨砌体结构的温度裂缝机理 ,对砌体结构的温度场进行了研究 .由通用有限元软件 SAP AL OGOR的稳态温度场计算结果得出砌体结构的温度分布规律 ,提出了简化的计算方法 ,即对墙体和屋面分别按独立的一维问题进行计算 .推导了一维瞬态温度场的隐式差分公式 ,取消了时间步长和空间步长的相互约束 .编制了程序进行计算 ,所得墙体计算结果与实测资料相吻合 ,表明该计算方法是简洁可行的 ;同时 ,利用该方法可为砌体结构的温度应力计算提供可靠的温度参数 .The mechanism of temperature crack in masonry structure is not very clear, but is important for the research on the temperature field of masonry structure. The SAP ALGOR steady temperature field results yielded the masonry structure's temperature field distribution rule. Based on this, a simple method for temperature field calculation takes the wall and roof of the masonry structure as a one-dimensional temperature field. For application, a hidden differential formula for the one-dimensional unsteady temperature field was deduced, and the program for calculating it was designed. The calculated result fits well with the test data, so the method is usable. By this method, reliable temperature data can be gained for temperature stress calculation of masonry structure.

关 键 词：砌体结构 温度场 太阳辐射 温度裂缝 温度应力 温度分布规律 热传导过程 混凝土结构 

分 类 号：TU375.6[建筑科学—结构工程]