墙体弹性模量对不均匀沉降和墙面应力的影响

Effects of Wall Elastic Modulus on Uneven Settlement and Wall Stress

该文依托岳阳某工程已出现基础不均匀沉降“病态”的底部框架砌体结构,结合半无限体弹性地基模型的相对沉降计算式,通过墙体弹性模量变化下的数值模拟,推断出墙体弹性模量对基础不均匀沉降和墙面最大应力的影响规律。研究结果表明,同时增大一二层墙体弹性模量与仅增大第一层墙体弹性模量相比,柱底沉降量减小更加明显,墙面最大应力所受影响更小。

Based on the "sick" bottom frame masonry structure of uneven foundation settlement of a Yueyang project,and combined with the relative settlement calculation formula of the semi-infinite elastic foundation model, this paper conducted numerical simulation under the change of wall elastic modulus to deduce the influence law of wall elastic modulus on the foundation uneven settlement and the wall maximum stress. The results showed that when the elastic modulus of the first and second floor walls are increased at the same time, compared with the situation where only the elastic modulus of the first floor wall is increased, the settlement of the column bottom is reduced more obviously, and the maximum stress on the wall surface is less affected.