Mechanical behavior and fatigue failure analysis of standing seam aluminum alloy roof system under temperature effect

Wang, Mingming; Ou, Tong; Xin, Zhiyong; Wang, Dayang; Zhang, Yongshan

doi:10.1016/j.jobe.2021.103001

Cited by 6 publications

(3 citation statements)

References 15 publications

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“…The test method of the metal roof system has certain reliability, and the loading device and test content are described in detail. 2,3 Based on the above research, experimental studies were carried out on the temperature stress and displacement of the SSR and CWR systems. The SSR slab is subjected to long-term solar radiation, and the temperature difference under different climatic conditions can reach up to 80 C. 29 Considering the influence of varying temperature differences, loading rate, and holding temperature time on the temperature effect of the specimen, the loading diagram is shown in Figure 4.…”

Section: Test Schemementioning

confidence: 99%

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Experimental investigation on the thermal behavior of two typical stainless steel roof systems

Chong,

Xin,

Wang

et al. 2024

Structural Design Tall Build

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SummaryUnder long‐term exposure to solar radiation and temperature difference, metal roof systems produce a noticeable thermal behavior. The thermal behavior experiment of two typical metal roof systems in engineering was studied. The temperature stress and displacement of the two typical metal roof systems under different influencing factors are compared and analyzed. The results show that the thermal behavior of the stainless steel roof system is significant. The peak stress accounts for about 69.9% of the stainless steel yield strength, and the peak displacement accounts for 3/3500 of the slab span. The loading rate and temperature difference greatly influence the thermal behavior of the two typical roof systems. The maximum influence of temperature difference and loading rate on the thermal behavior is 77.8% and 67.3%, respectively. The holding temperature time has a minor influence on the thermal behavior of the two typical roof systems, and the maximum influence range is less than 7%. The research conclusions provide a valuable reference for the thermal design of metal roof systems.

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Section: Test Schemementioning

confidence: 99%

“…Under the action of temperature, the key nodes of the roof system are damaged, and the bearing capacity of the roof system is affected. 2 Therefore, it is significant to carry out the mechanical properties of metal roof systems under temperature to accurately evaluate the service life and bearing capacity of roof systems.…”

mentioning

confidence: 99%

Experimental investigation on the thermal behavior of two typical stainless steel roof systems

Chong,

Xin,

Wang

et al. 2024

Structural Design Tall Build

Self Cite

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“…In thick-walled corrugated tubes, bolting, welding, or riveting processes are generally used to reinforce the lock-seam [26,27]. In the application research of other products, due to the thin strip thickness, more attention is paid to the lockseam sealing performance, the overall axial performance of the concrete and the corrugated tubes or the detection of lock-seam defects [28][29][30]. So far, there is no literature report on the systematic research and analysis of the mechanical properties of the lock-seam.…”

Section: Introductionmentioning

confidence: 99%

Simulation and analysis of mechanical properties of cold-formed lock-seam of truss rods for on-orbit construction

Yang

Han²,

Liu³

et al. 2022

Eng. Res. Express

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In this paper, a new process of spiral cold forming of truss rods for on-orbit construction is proposed. The influence of the width of the lock-seam overlapping region, stirp thickness and lock-seam buckle structure types on the mechanical properties of the rods’ lock-seam was investigated by using a method combining of single tensile experiment and numerical simulation. The results show that for the flat buckle samples with the stirp thickness of 0.3mm, with the increase of the width of overlapping region of the lock-seam, the maximum occlusal force and maximum occlusal strength of the lock-seam are monotonically decreasing. Although the simulated maximum occlusal force is slightly higher than the actual maximum occlusal force, the simulation results show reasonable agreement with the experimental values. In the simulation, with the increase of the stirp thickness, the maximum occlusal force of the flat buckle has a linear increase, while the maximum occlusal strength increases slightly. Compared with the flat buckle type, when the lock-seam is designed as a pressed rib buckle type, the overall mechanical properties of the lock-seam are improved by 80%. It is more effective to improve the mechanical properties of the rods’ lock-seam by changing the buckle type.

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Experimental Study on Mechanical Properties of Continuous Welding Stainless Steel Roof System under Temperature Effect

Wang

Xin³

et al. 2021

KSCE J Civ Eng

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Stainless steel is used as a new generation of long-span metal roof systems with continuous welding technology, which exhibits many unknown behaviors during temperature action. This study focuses on the temperature effect of a continuous welded stainless steel roof (CWSSR) system and analyzes the stress distribution of plate rib (PR), plate surface (PS), and support (SU), and the horizontal and vertical displacement. Furthermore, the thermal action of the CWSSR system is comprehensively analyzed considering different loading rates, constant temperature time, and the cycle number. Research results show that the stress concentration and thermal expansion of the CWSSR system are obvious, and fatigue damage occurs under long-term temperature action. The responses of the CWSSR system are greatly influenced by the loading rate and the cycle number but are less influenced by the constant temperature time. Loading rate and the cycle number mainly affect the plate surface stress and vertical displacement. The plate surface stress and vertical displacement peak increased by 34.6% and 29.6% with the loading rate, and changed by 32.4% and 42.5% with the cycle number. Cyclic loading reduces support tensile capacity by 4.4%. The research results can provide reference for the design and application of temperature field resistance of the CWSSR system.

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Mechanical behavior and fatigue failure analysis of standing seam aluminum alloy roof system under temperature effect

Cited by 6 publications

References 15 publications

Experimental investigation on the thermal behavior of two typical stainless steel roof systems

Experimental investigation on the thermal behavior of two typical stainless steel roof systems

Simulation and analysis of mechanical properties of cold-formed lock-seam of truss rods for on-orbit construction

Experimental Study on Mechanical Properties of Continuous Welding Stainless Steel Roof System under Temperature Effect

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