Numerical Modeling of Welding Temperature in Centrifuge Concrete-Filled Steel Tubular Columns

Abstract:

The objective of this study is to develop a finite element analysis model that simulates the temperature profile in concrete-filled steel tubular structures during welding procedure in which several metal plates are fixed on the outer surface of steel tube to increase the strength and stiffness of it. In the present model, the thermal property such as thermal conductivity of the steel phase is assumed to be functions of temperature variable. Spatial and temporal distributions of temperature are illustrated under extreme weld heating conditions to investigate the behaviors of the structure at every time step. Simulation results indicate that the maximum value of temperature on the interface of steel and concrete caused by the weld heat source doesn’t damage the mechanical properties of concrete and steel.

• Periodical: Advanced Materials Research (Volumes 243-249)
• Pages: 6022-6025
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.243-249.6022
• Online since: May 2011
• Authors: Hong Sheng Cai, Xing Pei Liang, Jin Feng Geng, Hui Wang
• Keywords: Centrifuge Concrete-Filled Steel Tubular, Finite Element, Thermal Analysis, Welding

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