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鄒 宇 王元清 陳 宏 石永久 肖建春
（清華大學(xué)土木工程系 北京 100084）[提要] 復(fù)雜支承條件下空間網(wǎng)架的靜動力結(jié)構(gòu)分析是網(wǎng)架分析中比較困難的一類問題。使用通用有限元分析軟件對作者參與的深圳市民中心空間網(wǎng)架設(shè)計原方案進(jìn)行了靜動力結(jié)構(gòu)分析，并對原設(shè)計方案進(jìn)行了結(jié)構(gòu)優(yōu)化與調(diào)整。優(yōu)化調(diào)整后的結(jié)構(gòu)較原方案更有效地利用了材料的承載能力和結(jié)構(gòu)剛度的整體性，從而既提高了結(jié)構(gòu)的承載力和剛度，又降低了鋼材的使用量。文中所給出的分析方法可供同類工程參考。
[關(guān)鍵詞] 網(wǎng)架 復(fù)雜支承 靜力分析 模態(tài)分析Static and dynamic structural analysis of spatial latticed grids with complicated supporting conditions is very difficult in the analysis of latticed grids. FEA software was applied to make the static and dynamic structural analysis of the schedule of spatial latticed grids in the Shenzhen Civil Center. Structural optimization is carried out for the original design scheme.The loading capacity of materials and integrity of the structural rigidity are more efficiently explored through optimization, so the loading capacity and rigidity are enhanced and consumption of steel is reduced. Analysis also shows the strong function of FEA software on the analysis of spatial latticecl grids.
Keywords: latticed grids; complicated support; static structural analysis; mode analysis
