地下室基础设计及合理优化方法  

APPROACH FOR DESIGN AND REASONABLE OPTIMIZATION OF BASEMENT FOUNDATION

作　　者：陈晓东 邵剑文 肖志斌 CHEN Xiao-dong;SHAO Jian-wen;XIAO Zhi-bin(Architectural Design and Research Institute of Zhejiang University,310028,Hangzhou,China)

机构地区：[1]浙江大学建筑设计研究院有限公司,杭州310028

出　　处：《建筑技术》2025年第4期418-423,共6页Architecture Technology

摘　　要：本研究对不同抗浮底板方案进行内力分析、经济性对比,并通过简化公式合理确定无梁底板柱帽尺寸,指明无梁底板适用条件;通过造价目标函数分析找出不同桩型经济性指标核心参数Ra/V,利用复合桩基原理对承压工况下桩基进行合理优化,且不降低基础整体安全性;通过抗浮永久荷载分类研究,提出一种利用承压工况计算模型直接验算抗浮工况桩基础的实用设计方法,并给出抗浮验算荷载组合表达式。In this study,internal force analysis and economic comparison were conducted to different anti-floating base plate schemes,the dimensions of column caps for beamless base plates were calculated reasonably by simplified formulas,and the applicable conditions for beamless base plates were determined.By analyzing the cost objective function,the core parameter Ra/V among economic indicators for different pile types were identified.The pile foundation under stress was reasonably optimized according to the principle of composite pile foundations,without any decline in the overall safety of foundations.Through the classification of anti-floating permanent loads,a practical design approach was proposed for direct verification of anti-floating pile foundations with a stress calculation model.In addition,an expression of load combination for anti-floating verification was provided.

关 键 词：无梁底板 桩基优化 复合桩基 抗浮设计 

分 类 号：TU74[建筑科学—建筑技术科学]