高桩码头结构地震响应分析
详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文
摘要
为了研究强震区高桩码头结构在地震动作用下结构的安全性,采用快速拉格朗日时域有限差分法进行地震时程分析,并利用FLAC3D软件进行某高桩码头数值模拟。结果表明:双向地震动作用下,码头结构产生的水平、竖直残余位移较小;平台纵梁正应力及横梁正应力幅值波动较大,但均在材料的允许强度范围之内;桩体轴力幅值变化较大,但均小于其承载力。从码头结构刚度、强度角度分析,码头结构安全可靠。
In order to research the safety reliability of high-pile wharf in highly seismic region,fast Lagrangian analysis of continua was used for seismic time history analysis and the FLAC3D software was adopted for numerical calculation.The result indicates that the high-pile wharf generates small residual horizontal and vertical displacement;the normal stress amplitude of platform's longitudinal beam and transverse beam waves up and down,but the extreme values are all within the range of allowable strength;and the axial forces of PHC piles also have a great change but all are smaller than the bearing capacity of the PHC piles.In the sight of the stiffness and intensity of the high-pile wharf,it is safe and reliable.
引文
[1]刘晓,唐小微,栾茂田.地基液化导致沉箱码头破坏及地基加固方法的非线性数值分析[J].防灾减灾工程学报,2009,29(5):518-523.
    [2]齐翔.高桩码头静动力计算和分析[D].大连:大连理工大学,2008.
    [3]刘晓.沉箱码头地震破坏及地基加固的非线性数值分析[D].大连:大连理工大学,2009.
    [4]李悦,宋波.高桩码头震害分析及减震措施[J].水道港口,2006,27(2):101-104.
    [5]郑国栋,李校兵.不同方法对某桥梁抗震分析的影响比较[J].公路,2010(3):60-65.
    [6]陈厚群.坝址地震动输入机制探讨[J].水利学报,2006,37(12):1 417-1 423.
    [7]JTJ 267—1998港口工程混凝土结构设计规范[S].
    [8]JTJ 225—1998水运工程抗震设计规范[S].
    [9]IncItasca Consulting Group.Fast language analysis ofcontinua in 3 dimensions version 4.0,user′s manual[M].Minneapolis,Minnesota:Itasca Consulting Group Inc,2009.
    [10]陈育民,徐鼎平.FLAC/FLAC3D基础与工程实例[M].北京:中国水利水电出版社,2008.
    [11]彭文斌.FLAC3D实用教程[M].北京:机械工业出版社,2008.

版权所有:© 2023 中国地质图书馆 中国地质调查局地学文献中心