- 摘 要
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李春祥
(同濟(jì)大學(xué)建筑工程系上海 200092)[提要] 以設(shè)置四道外伸臂超高層結(jié)構(gòu)為例，探討了帶外伸臂超高層建筑結(jié)構(gòu)的水平位移計算問題。導(dǎo)出了求解外伸臂約束彎矩的矩陣方程，在此基礎(chǔ)上推導(dǎo)了求解頂點水平位移的計算公式，同時探討了外伸臂抗彎剛度的計算問題。最后給出了算例，說明外伸臂的有效性和計算方法對工程設(shè)計的實用性。
[關(guān)鍵詞] 超高層結(jié)構(gòu) 外伸臂 水平位移 位移指標(biāo)Directed against the actual engineering design, a four-outrigger highrise structure will be used to demonstrate the calculation of the lateral deflection. The matrix equation is derived to solve the outrigger restraining moments. On the equation, the formula of the top lateral deflection is derived. At the same time, the calculation of the bending rigid of the outriggers is studied. Eventually a numerical example is given to demonstrate its effectivity of outriggers in reducing the top lateral deflection and practicability of the calculation in the design.
Keywords: highrise structure; outrigger;lateral deflection; drift index
