空間結構受溫度作用的數值分析
甘明，梁晶，葛昕
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（北京市建筑設計研究院，北京 100045）［摘要］空間結構的溫度影響是不可避免的，討論了不均勻溫度場的計算方法，并估計了使用均勻溫度場產生的熱變形和熱應力誤差，提出了溫度作用的取值方法，回顧了大空間建筑溫度分布的研究發(fā)展過程，歸納出微分方程數值解、能量平衡分析簡易分析、實驗等三類研究方法，介紹了使用CFD方法計算兩個工程的不均勻溫度場的結果。［關鍵詞］空間結構； 溫度作用； 數值分析Numerical analysis on the temperature action in spatial steel structuresGan 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作者簡介：甘明，博士，教授級高工，Email：ganming1@vip.sina.com。參考文獻［1］GB50009—2001建筑結構荷載規(guī)范［S］.［2］劉善維，劉毅軒，錢若軍.網架結構設計手冊［M］.北京：煤炭工業(yè)出版社，1983.［3］樊小卿. 溫度作用與結構設計［J］. 建筑結構學報， 1999(2)：43-50.［4］馬人樂，孫德發(fā)，姚偉銘.黑龍江電視塔設計中的溫度效應研究［J］.上海力學，1999(4).［5］李國強, 韓林海, 樓國彪, 等. 鋼結構及鋼-混凝土組合結構抗火設計［J］.北京: 中國建筑工業(yè)出版社, 2006.
