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錢 鵬，王 建，周建龍
(現(xiàn)代設(shè)計集團華東建筑設(shè)計研究院有限公司，上海200002)[摘要] 以換流站閥廳為研究對象，研究閥廳結(jié)構(gòu)中懸掛的一組質(zhì)量較大的硅閥在地震作用下對閥廳結(jié)構(gòu)的影響。利用商業(yè)有限元軟件SAP2000，采用動力時程的分析方法，對硅閥與閥廳結(jié)構(gòu)之間相互作用的進行了模擬。通過對6組常用結(jié)構(gòu)類型的房屋進行分析和比較，發(fā)現(xiàn)多向地震激勵下硅閥會出現(xiàn)明顯的豎向地震響應(yīng)；為了便于設(shè)計，可取重力荷載代表值乘以一個動力系數(shù)作為等效荷載替代結(jié)構(gòu)整體的動力時程分析。
[關(guān)鍵詞] 閥廳；時程分析；動力系數(shù)；結(jié)構(gòu)設(shè)計Study of Dynamic Coefficient in Structure Design of Valve Hall of Converter Station
Qian Peng, Wang Jian, Zhou Jianlong
( East China Architectural Design & Research Institute Co. Ltd, Xian Dai Architectural Design Group, Shanghai 200002, China)Abstract: Valve hall structure of converter station is studied to find the effect of a large mass group of silicic valves to the hall structure under the earthquake action. Commercial FE software SAP2000 is used to simulate the interaction between the silicic valves and valve hall by the dynamic time history method. Six types of general structure are analyzed and compared, that silicic valve will have obvious seismic response in vertical direction. For the ease of design, an equivalent load that equals to the representative value of gravity load multiplied by a dynamic coefficient can be used to substitute the dynamic time history analysis of the whole structure.
Keywords: valve hall; time history analysis; dynamic coefficient; structure design
