- 摘 要
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陳志華 郭 云 李 陽 （天津大學(xué)建筑工程學(xué)院 300072）
[提要] 以跨度35.4m，矢高4.6m的天津保稅區(qū)商務(wù)中心弦支穹頂屋蓋為例，進(jìn)行了預(yù)應(yīng)力的設(shè)定分析。采
用ANSYS程序進(jìn)行了結(jié)構(gòu)的模態(tài)分析和地震響應(yīng)分析，得到了弦支穹頂結(jié)構(gòu)體系的動力性能結(jié)果，并將弦支穹頂?shù)膭恿π阅芘c相應(yīng)的單層網(wǎng)殼做了分析比較。對兩種激勵作用下的弦支穹頂實物進(jìn)行了頻率動力性能的實驗研究，驗證了理論分析結(jié)果的合理性。
[關(guān)鍵詞] 弦支穹頂 預(yù)應(yīng)力設(shè)定 頻率 模態(tài)分析 地震響應(yīng)分析Taking a suspendome with span of 35.4m and rise of 4.6m as the example,the modal analysis and seismic analysis of the structure are carried out using the ANSYS software.The dynamic features of the suspendome are obtained and compared with those of a single-layer dome with the same span and rise. Experimental study of a real project is also carried out under two kinds of excitations to find out the frequency features of suspendome structures.
Keywords: suspendome; prestress; frequency; modal analysis; seismic analysis參 考 文 獻(xiàn)
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