建筑桩基的有效应力地震反应分析:Ⅰ——计算方法
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摘要
根据地震作用、上部结构、桩基的特点 ,建立了建筑桩基地震反应分析的计算模型 ,考虑了桩 -土 -上部结构的动力相互作用。然后将饱和土体视为由固、液二相组成的两相介质 ,基于 Biot动力固结方程 ,提出一种建筑桩基地震反应的有效应力动力分析方法 ,并给出了具体计算步骤
According to the character of earthquake effect, superstructure and pile foundations, the research model of the earthquake response of building pile foundations is established. The model can consider the dynamic pile\|soil\|structure interaction. Based on Biot dynamic consolidation equation, which describes the two\|phase porous media system dynamic interaction, the effective stress dynamic analysis with the model is recommended to predict the earthquake response of pile foundations. The calculation procedure is also reported in detail.
According to the character of earthquake effect, superstructure and pile foundations, the research model of the earthquake response of building pile foundations is established. The model can consider the dynamic pile\|soil\|structure interaction. Based on Biot dynamic consolidation equation, which describes the two\|phase porous media system dynamic interaction, the effective stress dynamic analysis with the model is recommended to predict the earthquake response of pile foundations. The calculation procedure is also reported in detail.
引文
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[2 ] Badoni D.,Makris N.Nonlinear response of singlepiles under lateral inertial and seismic loads[J].Soil Dynam ics and Earthquake Engineering,1996 ,15 (1) :2 9- 43.
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[4] El Naggar M.H.,Novak M.Nonlinear analysis fordynamic lateral pile response[J]. Soil Dynamicsand Earthquake Engineering,1996 ,15 :2 33- 2 44 .
[5 ] 赵振东 ,傅铁铭 ,土岐宪三 .桩头侧向集中荷载作用下桩 -土系统的非线性动力性能分析 [J].地震工程与工程振动 ,1997,17(3) :10 0 - 10 9.
[6 ] 方鄂华 .多层及高层建筑结构设计 [M].北京 :地震出版社 ,1992 .
[7] Desai C.S.,Johnson L.D.,Hargett C.M.Analy-sis of pile- supported gravity lock[J].Journal ofthe Geotechnical Engineering Division,ASCE,1974,10 0 (GT9) :10 0 9- 10 2 9.
[8] 徐志英 .土 -地下结构动力相互作用的有效应力法[J].水利学报 ,1993,(10 ) :5 9- 6 3.
[9] Zienkiewicz O.C.,Shiomi T.Dynamic behaviourof saturated porous media:the generalized Biotformulation and its numerical solution[J].Interna-tional Journal for numerical and analytical methodsin geomechanics.1984,8(1) :71- 96 .
[10 ] 朱百里 ,沈珠江等 .计算土力学 [M].上海 :上海科学技术出版社 ,1990 .4- 10 .
[11] 黄雨 ,陈竹昌 .振动孔隙水压力对桩竖向承载力的影响 [J].工程勘察 ,1999,(5 ) :10 - 16 .
[12 ] 黄雨 ,舒翔 ,王军等 .桩 -土 -结构地震反应分析的计算方法研究 [A].枫林学苑——同济大学博士论文集 [C].上海 :上海科学技术文献出版社 ,1999.2 0 8-2 12
[2 ] Badoni D.,Makris N.Nonlinear response of singlepiles under lateral inertial and seismic loads[J].Soil Dynam ics and Earthquake Engineering,1996 ,15 (1) :2 9- 43.
[3] Davis T.G.,Sen R.,Banerjee P.K.Dynamic be-haviour of pile groups in inhomogeneous soil[J].J.Geotech Engng,1985 ,111(12 ) :136 5 - 1379.
[4] El Naggar M.H.,Novak M.Nonlinear analysis fordynamic lateral pile response[J]. Soil Dynamicsand Earthquake Engineering,1996 ,15 :2 33- 2 44 .
[5 ] 赵振东 ,傅铁铭 ,土岐宪三 .桩头侧向集中荷载作用下桩 -土系统的非线性动力性能分析 [J].地震工程与工程振动 ,1997,17(3) :10 0 - 10 9.
[6 ] 方鄂华 .多层及高层建筑结构设计 [M].北京 :地震出版社 ,1992 .
[7] Desai C.S.,Johnson L.D.,Hargett C.M.Analy-sis of pile- supported gravity lock[J].Journal ofthe Geotechnical Engineering Division,ASCE,1974,10 0 (GT9) :10 0 9- 10 2 9.
[8] 徐志英 .土 -地下结构动力相互作用的有效应力法[J].水利学报 ,1993,(10 ) :5 9- 6 3.
[9] Zienkiewicz O.C.,Shiomi T.Dynamic behaviourof saturated porous media:the generalized Biotformulation and its numerical solution[J].Interna-tional Journal for numerical and analytical methodsin geomechanics.1984,8(1) :71- 96 .
[10 ] 朱百里 ,沈珠江等 .计算土力学 [M].上海 :上海科学技术出版社 ,1990 .4- 10 .
[11] 黄雨 ,陈竹昌 .振动孔隙水压力对桩竖向承载力的影响 [J].工程勘察 ,1999,(5 ) :10 - 16 .
[12 ] 黄雨 ,舒翔 ,王军等 .桩 -土 -结构地震反应分析的计算方法研究 [A].枫林学苑——同济大学博士论文集 [C].上海 :上海科学技术文献出版社 ,1999.2 0 8-2 12
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