（北京市建筑设计研究院，北京 100045）

［摘要］空间结构的温度影响是不可避免的，讨论了不均匀温度场的计算方法，并估计了使用均匀温度场产生的热变形和热应力误差，提出了温度作用的取值方法，回顾了大空间建筑温度分布的研究发展过程，归纳出微分方程数值解、能量平衡分析简易分析、实验等三类研究方法，介绍了使用CFD方法计算两个工程的不均匀温度场的结果。

［关键词］空间结构； 温度作用； 数值分析

Numerical analysis on the temperature action in spatial steel structures

Gan Ming, Liang Jing, Ge Xin(Beijing Institute of Architectural Design, Beijing 100045, China)

Abstract:The problem that the temperature affects on the spatial structure is unavoidable. The rules of temperature distribution and the computing methods of the temperature loads are discussed, the development of research in temperature are reviewed.The distribution of temperature in large space buildings and the research methods of the numerical solution of the differential equations are presented. The simplified model of energy balance analyses and experiments are also surveyed the practical computing methods of the thermal deformation and the temperature stress. The possible temperature cases which may occur are given. Two projects are given as the fundamental model to finish the temperature effects analysis by using the CFD method.

Keywords: spatial structure; temperature action

作者简介：甘明，博士，教授级高工，Email：ganming1@vip.sina.com。

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