高層建筑結(jié)構(gòu)基于整體穩(wěn)定的周期上限研究
張小勇，周立浪，扶長生
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（上海長福工程結(jié)構(gòu)設(shè)計事務(wù)所， 上海 200031）
［摘要］隨著高層建筑結(jié)構(gòu)高度的增加，結(jié)構(gòu)的整體穩(wěn)定逐步成為其設(shè)計的主導(dǎo)因素之一。在論述了P-Δ效應(yīng)與屈曲因子、屈曲因子與剛重比和屈曲因子與周期之間的關(guān)系，及國內(nèi)22棟超高層建筑結(jié)構(gòu)統(tǒng)計數(shù)據(jù)的基礎(chǔ)上，提出了高層建筑結(jié)構(gòu)基于整體穩(wěn)定的周期上限公式，為結(jié)構(gòu)在方案或初步設(shè)計階段，控制和驗算其整體穩(wěn)定提供了更為便捷可靠的方法。［關(guān)鍵詞］高層建筑結(jié)構(gòu); 整體穩(wěn)定; P-Δ效應(yīng); 屈曲因子; 周期上限中圖分類號：TU318.2 文獻(xiàn)標(biāo)識碼：A 文章編號：1002848X(2015)14-0030-05
Period upper limit study of high-rise building structures based on the overall stabilityZhang Xiaoyong, Zhou Lilang, Fu Changsheng(Shanghai ChinaFu Structural Design Inc., Shanghai 200031, China)Abstract:With the increase of the height of the high-rise building structures, the overall stability of structure has gradually become one of the dominant factors in its design. The relationship between the P-Δ effect and the buckling factor, the buckling factor and the ratio of stiffness to weight, and the buckling factor and the period were discussed. Based on the statistical data of 22 high-rise building structures in domestic, the period upper limit of high-rise building structures was proposed. It provide a more reliable and convenient method for controlling and checking the overall stability of structure in the scheme or preliminary design phase.Keywords: high-rise building structure; overall stability; P-Δ effect; buckling factor; period upper limit
作者簡介：張小勇，碩士，一級注冊結(jié)構(gòu)工程師，Email:zxyjlx1983@126.com。
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