- 摘 要
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(廣東省建筑設(shè)計研究院，廣州510010)
［提要］廣東省博物館新館采用新穎的大跨度懸掛結(jié)構(gòu)體系，結(jié)合該結(jié)構(gòu)的特殊性，采用國內(nèi)外幾個大型的有限元程序MIDAS/GEN,ETABS,PMSAP等進行整體計算，各項計算參數(shù)以及計算模式都進行了仔細分析后再行選用。除普通的計算模式外，還對施工加載、溫度效應(yīng)、預(yù)應(yīng)力、阻尼器等作用進行了分析，另外還針對施工過程進行了詳細的計算分析。彈塑性分析方面采用ABAQUS進行計算，對上部的空間鋼桁架及其節(jié)點進行了ANSYS分析。從計算結(jié)果來看，結(jié)構(gòu)抗震性能良好，主要控制指標(biāo)均滿足規(guī)范要求，具有足夠的安全性。多個分析方法的結(jié)合，確保工程做到“安全、經(jīng)濟、合理”。
［關(guān)鍵詞］大跨度懸掛結(jié)構(gòu)；整體計算；計算模式；彈塑性分析；節(jié)點分析
Structural Analysis of Guangdong Province Museum/Li Na, Wang Hualin, Xiang Qian, Chen Xing (The Architectural Design and Research Institute of Guangdong Province, Guangzhou 510010, China)
Abstract: The novel long span suspension structure system is adopted in Guangdong Province Museum. Considering the particularity in structure, the integral analysis is performed with several large-scale FEM software from home and aboard, e.g. MIDAS/GEN, ETABS, PMSAP etc. Each computation parameter and pattern is carefully analyzed before selection. Besides ordinary computation pattern, construction loading, temperature effect, pre-stressed, dampers are all involved, moreover construction stage loading simulation is carried. The elasto-plastic analysis is finished with ABAQUS, the upside spatial steel truss and the node analysis is computed with ANSYS. Seeing from the calculation result, aseismic performance of is well, and the primary control target satisfies the standard request. The structure has enough safety. Integral computation methods guarantee the solution to be safe, economical and reasonable.
Keywords: long span suspension structure; integral analysis; analysis pattern; elasto-plastic analysis; node analysis
