岛形滨河场地超高层建筑地基稳定性及地震效应分析  

Analysis on the foundation stability and earthquake effect of super high-rise building on the island riverside site

作　　者：张新善[1] 杨琦[1] 许嵘[1] 韦伟[1] 

机构地区：[1]中国建筑西北设计研究院有限公司,西安710018

出　　处：《建筑结构》2016年第24期56-60,65,共6页Building Structure

摘　　要：岛形滨河场地属于抗震不利地段,且地基中存在液化砂土层。针对该场地上某超高层建筑结构设计,分析了场地土层分布及土性特点。通过定量计算,从概念上评估了建筑地基的稳定性,同时对比分析了岛形突出场地地震作用增大系数在规范与安评报告间的差别。设计给出建筑地基基础以及上部结构的抗液化措施,比较了淤泥质场地的两种地基处理方法。The island riverside site belongs to the seismic unfavorable site,and there is liquefied sandy soil in its ground.According to the structural design of a super high-rise building on the site,the distribution and characteristics of the soil on the site were studied.Through quantitative calculation,the stability of the building foundation was evaluated conceptually,and the difference of the amplification coefficient of seismic action of the island prominent site between the code and the safety evaluation report was compared comparatively.The anti-liquefaction measures of building foundation and upper structure were provided,and two foundation treatment methods of silt ground were also compared.

关 键 词：超高层建筑 岛形滨河场地 地基处理 砂土液化 地震效应 

分 类 号：TU318[建筑科学—结构工程]