Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
An experimental investigation of properties of Q345 steel pipe at elevated temperatures
https://orcid.org/0000-0003-0884-1384
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.
Highlights To generate the thermal and mechanical properties of Q345 steel pipe at elevated temperatures using two test methods. To compare the material properties tested using both the steady-state and the transient-state tests. To propose the models of thermal and mechanical properties of Q345 steel pipe at elevated temperatures.
An experimental investigation of properties of Q345 steel pipe at elevated temperatures
https://orcid.org/0000-0003-0884-1384
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.
Highlights To generate the thermal and mechanical properties of Q345 steel pipe at elevated temperatures using two test methods. To compare the material properties tested using both the steady-state and the transient-state tests. To propose the models of thermal and mechanical properties of Q345 steel pipe at elevated temperatures.
An experimental investigation of properties of Q345 steel pipe at elevated temperatures
https://orcid.org/0000-0003-0884-1384
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.
Highlights To generate the thermal and mechanical properties of Q345 steel pipe at elevated temperatures using two test methods. To compare the material properties tested using both the steady-state and the transient-state tests. To propose the models of thermal and mechanical properties of Q345 steel pipe at elevated temperatures.
An experimental investigation of properties of Q345 steel pipe at elevated temperatures
Yuan, Guanglin (Autor:in) / Shu, Qianjin (Autor:in) / Huang, Zhaohui (Autor:in) / Li, Qing (Autor:in)
Journal of Constructional Steel Research ; 118 ; 41-48
28.10.2015
8 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
An experimental investigation of properties of Q345 steel pipe at elevated temperatures
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Dynamic mechanical behaviour of Q345 steel at elevated temperatures: experimental study
| British Library Online Contents | 2010