Anti-Seismic Behavior of Welded Box Section Column Considering Welding Residual Stress at High Temperature

Autor: Yadi Fu, Xueyu Dai, Huidi Zhang, Yimin Wang
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Archives of Metallurgy and Materials, Vol vol. 68, Iss No 1, Pp 5-13 (2023)
Druh dokumentu: article
ISSN: 2300-1909
DOI: 10.24425/amm.2023.141465
Popis: To study the anti-seismic performance of steel structure under high temperature, the finite element analysis software ABAQUS was used to study the seismic performance of Q235 steel welded box section column at service stage under normal temperature and high temperature fire. The effects of welding residual stress, slenderness ratio, width thickness ratio and axial load level on the hysteretic behavior of columns were analyzed and the stable bearing capacity and hysteretic performance of the column under high temperature were investigated. The results show that the maximum bearing capacity of the column decreases with the increase of the residual stress peak value. With the increase of temperature, a decrease in the maximum bearing capacity of columns under constant axial force and horizontal cyclic load and an increase in the ductility occur.
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