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(香港華藝設(shè)計顧問(深圳)有限公司，深圳 518031）
[摘要] 帶地下室高層結(jié)構(gòu)的計算中，為簡化常取帶2~3跨地下室模型，并取其計算結(jié)果設(shè)計上部塔樓。此時，地下室頂板要滿足規(guī)范關(guān)于嵌固端的要求。本文通過分析論證：當(dāng)上部塔樓和地下室均建入模型準(zhǔn)確計算時，地下室?guī)煽缂铀闹芡翉椈傻哪Ｐ秃偷叵率胰拷ㄈ肽Ｐ图铀闹芡翉椈傻哪Ｐ?，兩者的計算結(jié)果在上部無明顯區(qū)別，均真實地模擬了結(jié)構(gòu)的力學(xué)特性。此時，與結(jié)構(gòu)力學(xué)行為的嵌固端不同，地下室頂板嵌固端為名義嵌固端，僅用于確定加強(qiáng)區(qū)配筋構(gòu)造及設(shè)定抗震等級。
[關(guān)鍵詞]高層結(jié)構(gòu)； 地下室；嵌固端；計算模型；剛度比
中圖分類號：TU31 文獻(xiàn)標(biāo)識碼：A 文章編號：1002-848X（2013）S1-1306-03
作者簡介：劉俊，教授級高級工程師，華藝設(shè)計公司總工程師，Email: Szliujun888@126.com。
Study on the tall building partial fixing
Liu Jun,Xu Jinping,Yan Lijun,Zhang Hao
(Hong Kong Hua Yi Design Consultants(S.Z.)Ltd., Shenzhen 518031,
Abstract: When analyzing the tall building, we always use the model which has two-span or three-span frame basement to calculate the building and use the calculation to design the building. In this case, the condition of partial fixing should accord with the technical specification for concrete structures of tall building (JGJ3-2010). When the model includes the basement, we demonstrate the model which includes the two-span frame basement which has the soil spring is the same in calculation result with the model which includes all basement which has the soil spring. Two modes have simulated the real structure mechanical properties as same. In this case, the partial fixing is the name partial fixing, which only serves for the constructional reinforcement, and it is different from the mechanical partial fixing。
Keywords: tall building; basement; partial fixing; calculation model; stiffness ratio
