Modelling of the spatial structure of longwall buildings with large-scale quasi finite elements and applying the method in the interaction issues with subsoil – with regard to their implementation in stages
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Bialystok University of Technology, Faculty of Civil Engineering And Environmental Sciences, Wiejska 45E, 15-351 Bialystok
Vilnius Gediminas Technical University, Civil Engineering Faculty, Vilnius, Lithuania
Submission date: 2021-05-19
Final revision date: 2021-06-21
Acceptance date: 2021-06-21
Publication date: 2021-12-30
Archives of Civil Engineering 2021;67(4):527-541
The paper presents the original concept of description and analysis of buildings (wall and floor structures), corresponding to the natural components of construction, quasi finite elements (QWSFS). This concept constitutes one of the component of the developed, interactive model of deep foundation buildings. The presented modelling method enables a significant reduction of the number of unknowns, which in the case of interaction building – subsoil, gives a possibility of including the factual geometry and building development stiffness into the FEM model. Therefore the true representation of static operation of the objects can be analysed. The paper gives basic assumptions to the construction of the QWSF-superelements as well as the results of numerical tests conducted. The potential of using the developed modelling concept in the analysis of the structural elements and deep foundation problems, in a three-dimensional system: subsoil – new building – potential neighbouring building development (at each stage of erection of investment, using a structural statics stage analysis) was presented.
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