作　　者： (朱逸川）; (朱杰江）; (楼世雄）;

机构地区： 上海大学土木工程系,上海200072

出　　处： 《结构工程师》 2017年第4期16-20,共5页

摘　　要： 传统地下室设计方法中,未考虑地下室外墙在顶底板弹性约束下的受力性能。通过SAP2000软件对不同埋深和顶底板厚度的地下室外墙整体建模计算,研究了顶底板弹性约束对外墙受力性能的影响。数值分析结果表明,顶板的厚度、顶板所承受的竖向荷载对外墙弯矩影响显著;底板的厚度以及持力土层的基床系数也对外墙弯矩有一定影响。为方便实际应用,拟合出了外墙弯矩的简易计算公式。 In traditional design method of underground basement wall, the elastic constraint of top floor and base plate is neglected. In order to study the structural behavior of exterior wall under the joint action of top floor and base plate, models with different buried depths and thicknesses of top floor are built in SAP2000. Calculation results show that the thickness of plat floor and the vertical load on top floor have a significant influence on the moment of exterior wall, while the thickness of the base plate and the soil coefficient of subgrade reaction also have certain influence. For the convenience of practical application, a simple calculation formula of the external wall moment is fitted by numerical analysis.

关 键 词： 地下室 外墙 弹性约束