Design Analysis of a Typical Steel Frame of a High-Rise Industrial Building After an Accident

International Multi-Conference on Industrial Engineering and Modern technologies

Mkrtychev, O.V.^1 ; Sidorov, D.S.^1

Research Laboratory Reliability and Earthquake Engineering, Institute of Fundamental Education, Moscow State University of Civil Engineering, Yaroslavskoe shosse, 26, Moscow

129337, Russia^1

关键词: Explicit and implicit schemes;    Load-bearing capacity;    Load-bearing elements;    Loadbearing structure;    Progressive collapse;    Stress strain behaviours;    Structural monitoring;    Structural non-linearities;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/463/2/022080/pdf
DOI  :  10.1088/1757-899X/463/2/022080

来源: IOP

【 摘 要 】

The article considers the high-rise industrial building with typical design solutions, which was severely damaged as a result of an emergency (fire).The main objective of the work is to perform a design analysis of the steel frame of the building, determine the stress-strain behaviour and assess the load-bearing capacity of the elements considered at all stages of the structural behaviour. Calculations were made taking into account the stress history, the contact between the model elements, and also taking into account geometric, physical and structural nonlinearities. The structural behaviour analysis was made with explicit and implicit schemes of forth integration of the equation of motion. The article presents a numerical solution of the problem for calculating the combined power and temperature effects for the model frame of the high-rise industrial building in accordance with the thermal behavior of "real" fire and gives assessment of stability of the initial structural layout to the progressive collapse. Based on the results of the analysis, conclusions were drawn and recommendations were given to increase the stability of load-bearing structures of such buildings to a chain, progressive collapse. The results of calculated analysis were used in the design phase of the project to strengthen the load-bearing elements, as part of support of construction and installation work to reconstruct the frame, as well as during structural monitoring.