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張鳳文 劉錫良
(天津大學建筑工程學院 300072)[提要] 大跨度拱形結(jié)構(gòu)基礎(chǔ)常需設(shè)置傾斜基礎(chǔ)底面,基礎(chǔ)不僅產(chǎn)生豎向沉降而且還會發(fā)生水平方向位移?;A(chǔ)的位移對上部結(jié)構(gòu)的內(nèi)力產(chǎn)生很大影響,因此,正確評估基礎(chǔ)位移量以及準確分析它與上部結(jié)構(gòu)內(nèi)力的相互影響是設(shè)計工作中一個非常重要的問題。作者針對上述問題進行了分析,并提出了解決辦法和應(yīng)注意的問題。
[關(guān)鍵詞] 天然地基 拱形結(jié)構(gòu) 抗推壓基礎(chǔ)There is not only horizontal displacement but also vertical settlement in the foundation of iong span arch structure. Displacement of foundation has great effect on the internal force of the superstructure. It is virtually important to affirm the displacement of foundation and precisely analyse its effect on the internal force of superstructure.Aiming at these problems, the methods of resolution are put forward.
Keywords: natural subgrade; arch structure; foundation; inclined force