On the influence of modeling the increase of loads from the building frame in the analysis of stress-strain state of the of the foundation base

21st International Scientific Conference on Advanced in Civil Engineering "Construction - The Formation of Living Environment"

土木建筑工程

Chunyuk, Dmitriy^1 ; Rasskazova, Daria^1

Moscow State University of Civil Engineering, Yaroslavskoye Shosse 26, Moscow

129337, Russia^1

关键词: Building frames;    Construction model;    Construction of buildings;    Elastic half space;    Foundation soils;    Foundation systems;    Numerical experiments;    Stress strain state;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/365/4/042038/pdf
DOI  :  10.1088/1757-899X/365/4/042038

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

Design of bases and foundations is a complex task dependent on many different factors. Currently gained particular importance to the problem of the influence on the change of stress-strain state of the base of the foundation, increasing the load in the process of construction of buildings or structures. In this work, we performed a series of numerical experiments and the analysis of stress-strain state of the foundation soil, depending on the stress distribution at the base of the foundation. The basis set of single-layer elastic half-space with a limited depth of compressible strata. The calculations were performed using the PLAXIS 3D software package. The obtained data allowed to evaluate the selected parameters and note some features of the base-foundation system. The results of the series of calculations performed are analyzed by identifying the features in the distribution and the values of the parameters, depending on the characteristic features of the calculated cases, and are expressed by the following: the difference between phased and instant downloads, the main parameters influenced by the experiment, the influence of the construction modeling method on the magnitude and localization of the extremums of the functions of the parameters considered. As a result of the study, conclusions were drawn about the effect of the loading method on the stress-strain state of the base and recommendations were given on its modeling.