生态复合墙结构桩筏基础优化设计分析
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摘要
为了研究生态复合墙结构在地基基础与结构相互作用时桩筏基础的优化设计方法,建立生态复合墙-剪力墙混合结构和纯剪力墙结构在相互作用条件下的数值计算模型,计算了结构及地基基础的内力及变形。结合计算结果,分析了相互作用对桩筏基础、地基的应力、应变等的分布规律的影响,并将两种结构计算结果对比分析,研究了筏板厚度、混凝土强度、桩长、桩径等因素的变化对上部结构、桩筏基础的应力、应变及桩顶反力、桩筏荷载分担比等的影响,为生态复合墙结构桩筏基础基于地基-基础-结构相互作用的优化设计提供了参考。
In order to study the optimum design method for pile-raft foundation of ecological composite wall structure based on interaction between structure,subsoil and foundation,a compute model of ecological composite wall structure and shear wall structure based on interaction was founded.The inner force and deformation of structure and foundation were calculated.In light of the result,the influence of interaction stress and strain of pile-raft foundation and soil was analyzed.And the calculation results of two types of structures were contrasted to research the effect of change of thickness,strength of concrete of raft,length,diameter of pile on stress,strain of structure and foundation,reacted force of pile top,the share proportion of load of pile and raft.Which can provide reference for optimum design method of pile-raft foundation of ecological composite wall structure based on interaction of subsoil,foundation and structure.
In order to study the optimum design method for pile-raft foundation of ecological composite wall structure based on interaction between structure,subsoil and foundation,a compute model of ecological composite wall structure and shear wall structure based on interaction was founded.The inner force and deformation of structure and foundation were calculated.In light of the result,the influence of interaction stress and strain of pile-raft foundation and soil was analyzed.And the calculation results of two types of structures were contrasted to research the effect of change of thickness,strength of concrete of raft,length,diameter of pile on stress,strain of structure and foundation,reacted force of pile top,the share proportion of load of pile and raft.Which can provide reference for optimum design method of pile-raft foundation of ecological composite wall structure based on interaction of subsoil,foundation and structure.
引文
[1]姚谦峰,黄炜,田洁,等.密肋复合墙体受力机理及抗震性能试验研究[J].建筑结构学报,2004,25(6):67-74.
[2]DBJ/T61-43-2006密肋壁板结构技术规程[S].
[3]王爱民.中高层密肋壁板结构密肋复合墙体受力性能及设计方法研究[D].西安:西安建筑科技大学,2006.
[4]宋亚新.考虑土-桩-结构相互作用的框剪结构弹塑性地震反应分析侧[D].上海:同济大学,1998.
[5]孟焕陵,沈蒲生.均布荷载及集中荷载作用下框-剪结构中剪力墙的合理数量[J].华中科技大学学报:城市科学版,2004,21(1):64-68.
[6]杜晓霞.上部结构-桩筏基础-地基共同作用的非线性数值模拟[D]南京:南京理工大学,2005.
[2]DBJ/T61-43-2006密肋壁板结构技术规程[S].
[3]王爱民.中高层密肋壁板结构密肋复合墙体受力性能及设计方法研究[D].西安:西安建筑科技大学,2006.
[4]宋亚新.考虑土-桩-结构相互作用的框剪结构弹塑性地震反应分析侧[D].上海:同济大学,1998.
[5]孟焕陵,沈蒲生.均布荷载及集中荷载作用下框-剪结构中剪力墙的合理数量[J].华中科技大学学报:城市科学版,2004,21(1):64-68.
[6]杜晓霞.上部结构-桩筏基础-地基共同作用的非线性数值模拟[D]南京:南京理工大学,2005.
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