Journal ArticleDOI
High-temperature material degradation of Q345 cold-formed steel during full-range compartment fires
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TLDR
In this article, steady-state experiments on Q345 cold-formed steel (CFS) during the rising and falling temperature periods are presented, and the results show that the material properties of CFS decrease as the load testing temperature increases.About:
This article is published in Journal of Constructional Steel Research.The article was published on 2020-12-01. It has received 10 citations till now.read more
Citations
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Journal ArticleDOI
Numerical Investigation of the Fire Behavior of Storage Rack Systems Protected by Intumescent Coating
TL;DR: In this article , the behavior of beam-to-column connections in storage rack systems exposed to high temperatures was investigated using a finite element strategy, and the results were then compared to the Eurocode 3 Part 1.2 with a satisfactory agreement.
Journal ArticleDOI
Intelligent Discrimination Method Based on Digital Twins for Analyzing Sensitivity of Mechanical Parameters of Prestressed Cables
TL;DR: The application of DTs and D–S evidence theory to the sensitivity determination of cable mechanical parameters under temperature fully verified that the proposed intelligent method can effectively evaluate the safety performance of the actual structure.
Journal ArticleDOI
Effects of gear structural parameters on unsteady-state temperature field of large transmission ratio gear and tooth root thermal stress
TL;DR: In this article , a new broken-line section model was proposed to calculate the tooth root stress, and a stress permeability factor was introduced to identify the width of the broken line, which can systematically analyze the effect of structural parameters on the dynamic strength of gear transmission mechanisms under actual working conditions.
Journal ArticleDOI
Reformative Effects of Intumescent Coating on the Structural Characteristics of Cold-Formed Steel
TL;DR: In this article , axial tensile, thermal conductivity, and hardness tests have been performed on S235 cold-formed steel specimens that were exposed to increasing temperature periods, and the mechanical behavior of coated and uncoated specimens was investigated over the modulus of elasticity, yield strength/strain values for all temperatures.
Journal ArticleDOI
Experimental study on mechanical properties of Q690D high strength steel during the cooling stage of fire
TL;DR: In this article , the mechanical properties of high strength steel at the cooling stage were experimentally studied and were compared with those at the heating stage, which showed that the differences in mechanical properties between the cooling and heating stages are relatively small when the ultimate heating temperature (Tu) is within 400 °C, while the differences enlarge as Tu further increases, especially after Tu exceeds 800 °C.
References
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Description of Stress-Strain Curves by Three Parameters
Walter Ramberg,William R Osgood +1 more
TL;DR: In this paper, a simple formula is suggested for describing the stress-strain curve in terms of three parameters; namely, Young's modulus and two secant yield strengths.
Journal ArticleDOI
Experimental investigation of cold-formed steel material at elevated temperatures
TL;DR: In this paper, a unified equation for yield strength, elastic modulus, ultimate strength and ultimate strain of cold-formed carbon steel at elevated temperatures is proposed, and a full strain range expression up to the ultimate tensile strain is also proposed.
Journal ArticleDOI
Mechanical properties of cold-formed steels at elevated temperatures
TL;DR: In this paper, an experimental study was undertaken to investigate the elevated temperature mechanical properties of two low and high strength steels with two thicknesses that are commonly used in Australia, and the results were compared with the currently available reduction factors for yield strength and elastic modulus, and stress strain curves.
Journal ArticleDOI
An experimental study of loaded full-scale cold-formed thin-walled steel structural panels under fire conditions
Min Feng,Yu-Chun Wang +1 more
TL;DR: In this article, the results of eight tests on loaded full-scale cold-formed thin-walled steel structural panels, two tests at ambient temperature and six exposed to the standard fire condition on one side, were presented.
Journal ArticleDOI
Mechanical properties of ultra-high strength (Grade 1200) steel tubes under cooling phase of a fire: An experimental investigation
TL;DR: In this paper, the effect of simulated fire temperatures on the residual strength of steel was investigated and a recommendation has been made for separating studies of the simulated fire temperature into two classes (low and high temperature), depending on whether a critical maximum temperature (which depends on alloy composition) is exceeded.
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