深基坑中钢立柱竖向位移对内支撑构件轴力的影响  

Influence of Vertical Displacement of Steel Column on Axial Force of Internal Brace in Deep Foundation Pit

作　　者：彭修宁[1] 陈云杰 Peng Xiuning;Chen Yunjie(School of Civil and Architectural Engineering,Guangxi University,Nanning,Guangxi 530004)

机构地区：[1]广西大学土木建筑工程学院,广西南宁530004

出　　处：《江西建材》2022年第3期157-158,共2页Jiangxi Building Materials

摘　　要：文中以某开发区的工程实例为背景,探讨了深基坑中钢立柱竖向位移对内支撑构件轴力的影响规律。结果表明:在立柱底部放置钢筋混凝土大直径灌注桩,将灌注桩作为基础并深入场地土类型为软质岩石的中风化粉砂岩层16m,测量立柱的标高数值发现,柱子几乎没有明显的沉降和上浮,当柱子发生位移时,内支撑构件没有形状改变,力学性能没有受到明显影响,基坑和基础工程的施工安全可以得到保证。This paper takes an engineering example of a development zone as the research background, The influence of vertical displacement of steel column in deep foundation pit on axial force of internal support member was discussed. The results show that large diameter cast-inplace pile foundation is set under the column. The pile enters the medium-weathered silty sand strata of 16m. Column subsidence and floating value is almost zero. The internal support member does not undergo obvious additional deformation due to column displacement. It ensures the performance of internal support components and achieves safe supporting effect.

关 键 词：工程实例 深基坑 钢立柱 竖向位移 

分 类 号：TU753[建筑科学—建筑技术科学]