- 摘 要
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(深圳市建筑設(shè)計(jì)研究總院有限公司,深圳 518031)
[摘要]從低樁承臺(tái)、高樁承臺(tái)的概念理解入手,結(jié)合樁基抵抗地震水平力的機(jī)理,分析樁基在水平力作用下的側(cè)向變形及失穩(wěn)的原因,闡述由樁、土分擔(dān)水平力的核心問(wèn)題,提出建筑樁基抵抗水平力分體系的系統(tǒng)設(shè)計(jì)思路,提出由承臺(tái)或地下室的側(cè)面土層的土壓力及摩阻力承擔(dān),由斜樁的軸向力承擔(dān),由樁的抗剪及抗彎能力承擔(dān),由承臺(tái)、地下墻體、基樁協(xié)同工作和土的彈性抗力承擔(dān)四種分體系。
[關(guān)鍵詞]低樁承臺(tái);高樁承臺(tái);被動(dòng)土壓力;摩阻力;斜樁;復(fù)合地基;抵抗水平力分體系
Concept design for sub-system of resisting horizontal forces in pile foundation
Chen Xiaotang(Shenzhen General Institute of Architectural Design and Research Co., Ltd., Shenzhen 518031, China)
Abstract:Starting from the concept of understanding low capping piles and high capping piles, combined with the earthquake force pile resistance mechanism, it analyzes the reasons for lateral deformation and lateral instability of the pile under the lateral actions, introduces the core issue of piles, soil level of power-sharing, and proposes four sub-systems of resisting horizontal force,including the soil pressure of the side soil layer of the platform or basement and rubed resistance, the axle pressure of batter piles,shear and bending resistance ability of piles,born platform, underground wall, one and worked and undertaken with the elastic reactance strength of the land in coordination.
Keywords:low capping; high capping; passive earth pressure; frictional resistance; batter pile; composite foundation; sub-system of resisting horizontal force
作者簡(jiǎn)介:陳孝堂,高級(jí)工程師,一級(jí)注冊(cè)結(jié)構(gòu)工程師,注冊(cè)咨詢工程師(投資),Email:with666666@126.com。
參考文獻(xiàn)
[1]GB50007—2002建筑地基基礎(chǔ)設(shè)計(jì)規(guī)范[S].北京:中國(guó)建筑工業(yè)出版社,2002.
[2]JGJ94—2008建筑樁基技術(shù)規(guī)范[S].北京:中國(guó)建筑工業(yè)出版社,2008.
[3]GB50011—2001建筑抗震設(shè)計(jì)規(guī)范(2008年版)[S].北京:中國(guó)建筑工業(yè)出版社,2008.
[4]高立人,方鄂華,錢(qián)稼茹,等.高層建筑結(jié)構(gòu)概念設(shè)計(jì)[M].北京:中國(guó)計(jì)劃出版社,2005.
[5]建筑地基基礎(chǔ)設(shè)計(jì)規(guī)范理解與應(yīng)用[M].北京:中國(guó)建筑工業(yè)出版社,2004.
[6]謝征勛,鄒劍鋒.土力學(xué)與地基基礎(chǔ)[M].北京:中國(guó)水利水電出版社,知識(shí)產(chǎn)權(quán)出版社,2006.
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