884aa四虎影成人精品,99久久国产综合精品女图图等你,97在线观看永久免费视频,久久精品国产精品亚洲38,ⅵdeodesetv性欧美

（1 河北工業(yè)大學(xué)土木工程學(xué)院， 天津 300401； 2 河北省土木工程技術(shù)研究中心， 天津 300401；3 河北工業(yè)大學(xué)城市學(xué)院土木工程系， 天津 300130）

［摘要］強(qiáng)震作用下的樁基礎(chǔ)動(dòng)力響應(yīng)特性一直是巖土工程抗震領(lǐng)域研究的熱點(diǎn)問(wèn)題?；谝夯林袠痘駝?dòng)臺(tái)試驗(yàn)和Biot固結(jié)理論中的up形式公式，采用有限元軟件OpenSees PL 建立三維有限元模型，并進(jìn)行數(shù)值模擬分析，將數(shù)值模擬結(jié)果與試驗(yàn)結(jié)果進(jìn)行對(duì)比。結(jié)果表明：在正弦波輸入下，干砂試驗(yàn)單樁臺(tái)面、承臺(tái)加速度和位移時(shí)程與模擬臺(tái)面、承臺(tái)加速度和位移時(shí)程從形式和數(shù)值大小上均相差不大；液化砂土試驗(yàn)單樁承臺(tái)加速度幅值和位移與模擬承臺(tái)加速度幅值和位移略有差別，但試驗(yàn)臺(tái)面加速度和位移幅值與模擬臺(tái)面加速度和位移幅值比較接近。El Centro地震波輸入下也可以得到相近結(jié)論。

［關(guān)鍵詞］OpenSees PL； 振動(dòng)臺(tái)試驗(yàn)； 液化土； 三維有限元模型； 數(shù)值模擬分析

中圖分類(lèi)號(hào)：TU473      文獻(xiàn)標(biāo)識(shí)碼：A      文章編號(hào)：1002-848X(2015)08-0085-06

Numerical simulation study on lateral dynamic response of pile foundation

in liquefied soil based on OpenSees PL

Li Yurun1,2， Sun Weimin1， Liang Yan3

 (1 College of Civil Engineering, Hebei University of Technology, Tianjin 300401, China;

2 Civil Engineering Technology Research Center of Hebei Province, Tianjin 300401, China;

3 Department of Civil Engineering, Hebei University of Technology City College, Tianjin 300130, China)

Abstract:Characteristic of dynamic response of pile foundation under strong earthquake is a hot issue of geotechnical earthquake engineering field. Based on the shaking table test of pile foundation in liquefied soil and up  formula in Biot consolidation theory, finite element software OpenSees PL was used to establish 3D finite element model to carry out numerical simulation analysis. The results of numerical simulation and experiment  were compared. The results show that for test and simulation of dry sand, acceleration and displacement timehistory curves of cushion cap and cap surface of single pile are similar in form and magnitude with sine wave input. For test and simulation of liquefied sand, acceleration and displacement of cushion cap of single pile have little difference in amplitude, but acceleration and displacement of cap surface of single pile are similar in amplitude. The similar conclusions can be concluded under the input of El Centro seismic wave.

Keywords:OpenSees PL; shaking table test; liquefied soil; 3D finite element model; numerical simulation analysis

*國(guó)家自然科學(xué)基金資助項(xiàng)目（51008110），河北省自然科學(xué)基金資助項(xiàng)目（E2013202118），中國(guó)博士后科學(xué)基金資助項(xiàng)目（2014M561169），河北省住房和城鄉(xiāng)建設(shè)廳項(xiàng)目（2014231）。

作者簡(jiǎn)介：李雨潤(rùn)，博士，副教授，Email:iemlyr7888@163.com。

                                參考文獻(xiàn)

［1］唐亮.液化場(chǎng)地樁土動(dòng)力相互作用py曲線(xiàn)模型研究［D］.哈爾濱：哈爾濱工業(yè)大學(xué)，2010.

［2］李雨潤(rùn)，張中樂(lè)，梁艷，等. 分層液化土中樁基側(cè)向動(dòng)力反應(yīng)機(jī)理的試驗(yàn)研究［J］.防災(zāi)減災(zāi)工程學(xué)報(bào),2014,34(1)：40\|45.

［3］李雨潤(rùn)，羅祥，張中樂(lè)，等.兩種飽和土中樁基側(cè)向動(dòng)力響應(yīng)特性試驗(yàn)研究［J］.建筑結(jié)構(gòu),2013,43(23):99104.

［4］廖紅建,王鐵行，謝永利.巖土工程數(shù)值分析［M］.北京：機(jī)械工業(yè)出版社，2006.

［5］燕斌,王志強(qiáng),王君杰.樁土相互作用研究領(lǐng)域的Winkler地基梁模型簡(jiǎn)述［J］.建筑結(jié)構(gòu)2011,41（S1）:13641368.

［6］CHAN，ELGAMAL A. Nonlinear modeling of largrscale groundfoundationstructure seismic response［J］.Journal of Earthquake Technology, 2007,44(2):325339.

［7］ZIENKIEWICZ O C, SHIOMI T. Dynamic behaviour of saturated porous media; the generalized Biot formulation and its numerical solution ［J］. International Journal for Numerical and Analytical Methods in Geomechanics,1984，8:

71\|96.

［8］PROVOST J H. A simple plasticity theory for frictional cohesionless soils［J］.Dynamics and Earthquake Engineering，1985,4(1):9\|17.