Please use this identifier to cite or link to this item:
|Title:||An experimental investigation of properties of Q345 steel pipe at elevated temperatures|
|Keywords:||Q345 steel pipe;High temperature;Steady-state test;Transient-state test;Mechanical properties;Fire resistant design|
|Citation:||Journal of Constructional Steel Research, 118, pp. 41 - 48, (2016)|
|Abstract:||This paper presents the results of an extensive experimental investigation of the thermal and mechanical properties of Q345 steel pipe at elevated temperatures using both the steady-state and transient-state test methods. Under these two test conditions, the thermal expansion coefficient, yield strength and elastic modulus of the specimens at different temperatures were measured. The tested results indicate that both the yield strength and elastic modulus decrease gradually with increasing temperature. However, at the same temperature, both the yield strength and elastic modulus tested using the steady-state test are higher than those tested using the transient-state test. Hence, it is less safe to use the material properties tested using the steady-state test for fire resistance design of the steel structure. Based on the transient-state test results, the models of the mechanical properties of Q345 steel pipe at elevated temperatures were proposed. These models can be used for the design and analysis of Q345 steel pipe structures under fire conditions.|
|Appears in Collections:||Dept of Mechanical Aerospace and Civil Engineering Research Papers|
Items in BURA are protected by copyright, with all rights reserved, unless otherwise indicated.