典型金属结构太阳辐射非均匀温度作用计算方法  

CALCULATION METHOD OF SOLAR RADIATION NON-UNIFORM THERMAL LOAD FOR TYPICAL METAL STRUCTURE

作　　者：刘红波[1,2] 樊泽源 张智升 

机构地区：[1]天津大学滨海土木工程结构与安全教育部重点实验室,天津300072 [2]天津大学建筑工程学院,天津300072

出　　处：《工业建筑》2016年第11期19-24,58,共7页Industrial Construction

基　　金：国家自然科学基金项目(51208355)

摘　　要：大跨度金属结构的太阳辐射非均匀温度作用常常成为结构的控制荷载之一,但GB 50009—2012《建筑结构荷载规范》中并没有给出系统详细的计算方法。针对典型金属结构,基于稳态传导平衡理论,提出了太阳短波辐射体型系数和环境长波辐射体型系数概念及其计算式,建立金属结构太阳辐射非均匀温度作用的简化计算方法,通过算例分析与数值模拟结果对比,验证了所提计算方法的合理性和可靠性。The non-uniform temperature caused by solar radiation is usually one of the dominating load of large-span metal structure,but a systematic and detailed calculation method has not been given in Load Code for the Design of Building Structure（ GB 50009—2012）. Based on the steady-state conduction equilibrium theory and aimed at typical metal structures,it was presented the concept and formula of solar shortwave radiation shape factor and ambient longwave radiation shape factor, thus creating a simplified calculation method for solar radiation non-uniform temperature effect of metal structures. The comparison between analysis of examples and numerical simulation results verified the rationality and reliability of this method,providing a simple and feasible method for the analysis and design of large-span structure under solar radiation non-uniform temperature effect.

关 键 词：金属结构 太阳辐射 非均匀温度作用 太阳短波辐射体型系数 环境长波辐射体型系数 

分 类 号：TU39[建筑科学—结构工程]