武漢體育中心體育館主體結(jié)構(gòu)溫差效應分析與控制
張達生，袁強，婁澤方，宗靜，袁晨
- 摘 要
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張達生，袁強，婁澤方，宗靜，袁晨（中信建筑設計研究總院有限公司，武漢 430014）［摘要］武漢體育中心體育館主體結(jié)構(gòu)為復雜超長結(jié)構(gòu)，其溫差效應不容忽視。采用ANSYS有限元軟件進行計算分析，得到了該結(jié)構(gòu)由于溫差產(chǎn)生的變形和內(nèi)力的分布規(guī)律，并通過采用側(cè)向約束剛度較小的框架結(jié)構(gòu)、控制主體結(jié)構(gòu)閉合時的環(huán)境溫度等設計措施減小溫度應力的影響。結(jié)構(gòu)現(xiàn)已投入使用5年多，經(jīng)歷了多個溫差周期，沒有出現(xiàn)明顯的溫度裂縫，說明達到了設計要求。［關鍵詞］超長混凝土結(jié)構(gòu)；溫差；收縮；徐變；剛度折減中圖分類號：TU398文獻標識碼：A文章編號：1002-848X(2012)09-0014-06Analysis and control of temperature difference effects on main structure of gymnasium in Wuhan Sports CenterZhang Dasheng, Yuan Qiang, Lou Zefang, Zong Jing, Yuan Chen(CITIC General Institute of Architectural Design and Research Co., Ltd., Wuhan 430014, China)Abstract: The main structure of gymnasium in Wuhan Sports Center is a complex over-long concrete structure, and the temperature difference effects on it can not be ignored during structure design. The temperature difference effects on the structure were analyzed by using ANSYS, and the distribution of the deformation and internal force were obtained. Based on the results, reasonable practical measures, such as using frame structure system with smaller restraint stiffness and controlling ambient temperature of structure closure, were taken to reduce the temperature stress. The structure have served for five years now and experienced many temperature difference periods without significant temperature crack. It shows that the structure has met the design requirements.Keywords: over-long concrete structure; temperature difference; shrinkage; creep; stiffness reduction作者簡介：張達生，教授級高級工程師，一級注冊結(jié)構(gòu)工程師，Email:zzhangdasheng@163.com。參考文獻［1］GB 50010—2002 混凝土結(jié)構(gòu)設計規(guī)范［S］.北京：中國建筑工業(yè)出版社,2002.［2］樊小卿.溫度作用與結(jié)構(gòu)設計［J］.建筑結(jié)構(gòu)學報,1999,20（2）：43-50.［3］中國氣象科學數(shù)據(jù)共享服務網(wǎng)［DB/OL］. http://cdc.cma.gov.cn/.［4］BAZANT Z P，BAWEJA S. Creep and shrinkage prediction model for analysis and design of concrete structures-model B3，RILEM recommendation［J］.Material and Structures，1995（28）：357-365.［5］周履，陳永春.收縮徐變［M］.北京：中國鐵道出版社，1994：328-332.［6］王鐵夢. 工程結(jié)構(gòu)裂縫控制［M］.北京：中國建筑工業(yè)出版社,1997.［7］龔洛書，惠滿印，楊蓓.砼收縮與徐變的實用數(shù)學表達式［J］.建筑結(jié)構(gòu)學報，1988,9(5):37-42.［8］GB 50009—2001 建筑結(jié)構(gòu)荷載規(guī)范［S］.北京：中國建筑工業(yè)出版社，2001.
