高層建筑混凝土結(jié)構(gòu)的穩(wěn)定設(shè)計
徐培福 肖從真
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徐培福 肖從真
(中國建筑科學研究院 北京 100013)[提要] 高層建筑混凝土結(jié)構(gòu)在豎向荷重及風或地震作用下,其結(jié)構(gòu)穩(wěn)定己成為設(shè)計中需要考慮的問題。結(jié)合高層規(guī)程(JGJ3 - 91)的修訂,分析在風和地震作用下,影響高層建筑混凝土結(jié)構(gòu)的臨界荷載的主要參數(shù)抗側(cè)剛度與重力荷載比,提出了控制及驗算結(jié)構(gòu)穩(wěn)定的設(shè)計建議。可供工程設(shè)計時參考。
[關(guān)鍵詞] 高層建筑結(jié)構(gòu) 結(jié)構(gòu)穩(wěn)定 混凝土結(jié)構(gòu)The stability of tall building under vertical load and lateral load such as wind load and seismic load has to be considered in design. The main factors, the ratio of lateral rigidity to gravity, that affect the stability of tall building concrete structures have been studied, and some suggestions for design are provided.
Keywords: concrete; tall building; structural stability;critical loads; rigidity; gravity