储水构筑物对外包建筑基础的影响  

The Effect of Water Pool to the Structure Basement outside of It

作　　者：徐硕[1] 

机构地区：[1]上海市政工程设计研究总院(集团)有限公司,200092

出　　处：《特种结构》2014年第5期44-48,24,共6页Special Structures

摘　　要：本文以北方软土地区某工程为例,采用《建筑地基基础设计规范》(GB 50007-2011)关于大面积地面堆载计算方法,计算最不利工况下水池产生的附加荷载,对外包建筑框架柱基底沉降的影响;并利用有限元分析计算软件,分析基础不均匀沉降对外部建筑框架结构的内力影响。就本计算模型而言,水池的等效地面荷载将引起外包建筑基底的附加沉降;基础沉降对框架梁柱的弯矩设计值影响较大,并可以通过考虑弯矩项的影响一并考虑剪力及轴力对框架梁柱的影响。总体而言,由室内水池引起的外包建筑基础沉降,将引起原有结构内力的重新调整,且绝大多数影响是不利的。因而结构设计时,应该计算并考虑基础沉降对整体结构的不利影响。Taking one of the projects in northern area as an example, the settlement of the basement outside of the water pool caused by the large area load was analyzed, and effect of the water pool to the internal force of structure frame was illustrated, by using element analysis software according to the Code for Design of Building Foundation （GB 50007-2011）. This model illustrated that compared with the shear force and axial force of beams and columns, the effects of the moment design value of beams and columns caused by basement settlement is much more. So the harmful effect of the water pool to the internal force of structure frame should be calculated and considered in structural design.

关 键 词：水池 外保温建筑基础 附加荷载 基础沉降 框架内力 

分 类 号：TU433[建筑科学—岩土工程]