Static and Dynamic Analysis in Design of Exoskeleton Structure

World Multidisciplinary Civil Engineering-Architecture-Urban Planning Symposium - WMCAUS

土木建筑工程

Ivánkova, Ol'Ga^1 ; Méri, Dávid^1 ; Vojteková, Eva^2

Slovak University of Technology, Faculty of Civil Engineering, Department of Structural Mechanics, Radlinského 11, Bratislava

810 05, Slovakia^1

Slovak University of Technology, Faculty of Architecture, Institute of Architectural and Engineering Structures, Nám. Slobody 19, Bratislava

812 45, Slovakia^2

关键词: Exoskeleton structure;    High rise building;    Horizontal displacements;    Load-bearing systems;    Loadbearing structure;    Numerical experiments;    Static and dynamic analysis;    Ultimate limit state;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/245/2/022047/pdf
DOI  :  10.1088/1757-899X/245/2/022047

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

This paper introduces a numerical experiment of creating the load bearing system of a high rise building. When designing the high-rise building, it is always an important task to find the right proportion between the height of the building and its perceptive width from the various angles of street view. Investigated high rise building in this article was designed according to these criteria. The load bearing structure of the analysed object consists of a reinforced core, plates and steel tubes of an exoskeleton. Eight models of the building were created using the spatial variant of FEM in Scia Engineer Software. Individual models varied in number and dimensions of diagrids in the exoskeleton. In the models, loadings due to the own weight, weight of external glass cladding, and due to the wind according to the Standard, have been considered. The building was loaded by wind load from all four main directions with respect to its shape. Wind load was calculated using the 3D wind generator, which is a part of the Scia Engineer Software. For each model the static analysis was performed. Its most important criterion was the maximum or minimum horizontal displacement (rotation) of the highest point of the building. This displacement was compared with the limit values of the displacement of the analysed high-rise building. By step-by-step adding diagrids and optimizing their dimensions the building model was obtained that complied with the criteria of the Limit Serviceability State. The last model building was assessed also for the Ultimate Limit State. This model was loaded also by seismic loads for comparison with the load due to the wind.