Abstract
One of the key issues in structural and geotechnical engineering is that most parts of buildings are usually analysed separately and then the outputs are used in foundation designs. In this process, some effects are neglected. In this study, the soil–structure interaction (SSI) in foundations of concrete buildings was evaluated using the direct finite element method (DFEM). 3D models were developed and used to analyse concrete buildings with different stories constructed on soft soil. Foundation settlement, deformation of foundation, soil pressure diagram, and weight of reinforcement in the foundation were considered as the main parameters. Deformation of the foundation was analysed using the finite element method considering the effect of combined loadings (combinations of dead load, live load, and earthquake load). It is shown that by changing values of subgrade reaction modulus (Ks) in foundation design, the effects of SSI on tall buildings can be considered automatically. The results also show that the soil–structure interaction can cause changes in the pattern of foundation settlement, foundation deformation, and the weight of reinforcement used in foundation design. Furthermore, dishing deformation in foundation appeared in terms of SSI effects. An equation is provided to simplify considering SSI effects in foundation design. This method is practical for civil (especially structural) engineers, and they can conveniently consider these effects in foundation design without using DFEM.
Subject
Building and Construction,Civil and Structural Engineering,Architecture
Reference44 articles.
1. Seismic Soil-Structure Interaction in Buildings. II: Empirical Findings
2. Soil-structure interaction effects on tall buildings with mat foundation;Iqbal;SESOC J.,2014
3. Buildings Collapse and Socio-Economic Development of People in the Federal Capital Territory, Abuja, Nigeria;Hassan;Int. J. Econ. Dev. Res. Investig.,2016
4. Elastic Analysis of Soil-Foundation Interaction;Selvadurai,2013
5. Dynamic response of flexible strip-foundations by boundary and finite elements
Cited by
6 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献