柱下兩樁承臺(tái)的設(shè)計(jì)方法
唐海燕1，張海濤2
- 摘 要
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（1 西南大學(xué)工程技術(shù)學(xué)院， 重慶 400715； 2 重慶市工業(yè)學(xué)校， 重慶 400060）［摘要］承臺(tái)在樁基中起承上啟下的作用，是保證力沿傳力路徑有效傳遞的重要組成部分。因此，對(duì)樁基承臺(tái)的受力機(jī)理及其承載力問題的研究具有重要的理論意義和工程意義。目前，關(guān)于兩樁承臺(tái)的設(shè)計(jì)，設(shè)計(jì)人員尚未達(dá)成共識(shí)。以重慶市巴南區(qū)某辦公樓為例，根據(jù)柱下兩樁承臺(tái)的受力特點(diǎn)，介紹了柱下兩樁承臺(tái)的承載力設(shè)計(jì)方法和步驟，提出柱下兩樁承臺(tái)宜按深受彎構(gòu)件設(shè)計(jì)，為設(shè)計(jì)、施工人員熟練掌握樁基承臺(tái)計(jì)算方法提供參考。［關(guān)鍵詞］辦公樓; 樁基; 兩樁承臺(tái); 深梁中圖分類號(hào)：TU473.1+2 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1002-848X(2013)22-0077-03Design method of two-pile cap under the columnTang Haiyan1, Zhang Haitao2（1 College of Engineering and Technology, Southwest University, Chongqing 400715, China; 2 Chongqing Industrial School, Chongqing 400060, China）Abstract: Piles cap is an important load-transferring part of pile foundations. It possesses important theoretic and engineering value to make a thorough research on the mechanic performance of piles cap. At present, designers have not reached a consensus about the design of two-pile cap. Taking the office building of Banan District in Chongqing as an example, acoording to the mechanical characteristics of two-pile cap under column, the design method and process are introduced . It suggests that two-pile cap under column should be designed as deep flexural members, which provides reference for designers or constructers to obtain a skilled calculation method.Keywords: office building; pile foundation; two-pile cap; deep beam作者簡(jiǎn)介：唐海燕，碩士，高級(jí)工程師，Email:tangtang1300@21cn.com。參考文獻(xiàn)［1］ACI 318-02 Building code requirements for structural concrete and commentary［S］. USA：American Concrete Institute, 2002.［2］JGJ 94—2008 建筑樁基技術(shù)規(guī)范［S］. 北京：中國建筑工業(yè)出版社，2008.［3］GB 50010—2010 混凝土結(jié)構(gòu)設(shè)計(jì)規(guī)范［S］. 北京：中國建筑工業(yè)出版社，2011.［4］過超,龔維明,盧波,等. 兩樁厚承臺(tái)的承載力設(shè)計(jì)［J］.建筑科學(xué)與工程學(xué)報(bào)，2008, 25(3):87-91.［5］李平先,丁自強(qiáng),郭進(jìn)軍. 鋼筋混凝土短梁受剪承載力的計(jì)算方法［J］.建筑結(jié)構(gòu),2002,32(12)：39-41.
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