分离式布桩-整体式承台桩筏基础若干问题探析  

Analysis of several problems about the one-mat foundation with separated pile arrangement

作　　者：白若冰 BAI Ruobing(Xiamen Hordor Architecture&Engineering Design Group Co.LTD,Xiamen 361009)

机构地区：[1]厦门合立道工程设计集团股份有限公司,福建厦门361009

出　　处：《福建建筑》2023年第4期80-83,共4页Fujian Architecture & Construction

摘　　要：从概念设计、桩刚度取值和冲切验算三个方面,对分离式布桩-整体式承台桩筏基础存在隐患进行探讨分析。通过调查部分项目的实测数据,并结合算例进行对比分析,证实了基础安全度较难保证。为此,提出承台冲切验算时,必须考虑双向不平衡弯矩影响的原因,并进行验证。This article discusses several potential problems of the one-mat foundation with separated pile arrangement from three perspectives--conceptual design,pile stiffness and punching calculation.With the investigation in some project’s testing datas and the comparative analysis through calculation example,the safety risks of this foundation is confirmed.The reason why the bi-directional unbalanced bending moment needs to be considered in punching calculation is also given and verified in this article.

关 键 词：分离式布桩 整体式承台 桩筏基础 概念设计 桩刚度取值 冲切验算 双向不平衡弯矩 

分 类 号：TU473[建筑科学—结构工程]