Study on axial compression mechanical behavior of cold-formed thin-walled C-shaped steel composite wall sheathed with straw board on both sides

Xiu-hua, Zhang; Zhang, Enyuan; Li, Chaoran

doi:10.1016/j.istruc.2021.06.071

Cited by 17 publications

(9 citation statements)

References 23 publications

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“…Previous studies on traditional CFS wall under compression mainly concentrated on the impact of fastener and sheathing to the wall stud, and considered the effect of sheathing on elastic stability of the stud in distortional, local, and global buckling modes [29][30][31]. Regarding the LEM-infilled CFS wall, the deformation of the wall stud was mainly affected by the warping of filling materials.…”

Section: Test Resultsmentioning

confidence: 99%

Mechanical behavior analysis of LEM-infilled cold-formed steel walls

Wang¹,

Wang²,

Guo³

2022

Sustain. Struct.

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The sustainable development of the engineering structures mainly depends on the environmental- friendly to structural components. This requires the development of sustainable and new materials and structures that would be a worthy alternative for the available. This paper proposed a novel type of cold-formed steel (CFS) shear wall which filling light EPS mortars (LEM) into the space of CFS framing. LEM-infilled CFS walls carry forward the merits of traditional CFS wall, for example lightweight, easy installation, superior earthquake resistance and efficient energy saving. Moreover, employing recycled desulfurization gypsum and EPS in the structural materials reduce environmental pollution. However, the behavior of LEM-infilled CFS wall is not fully explored yet, which results in the low understanding and application of the material around the world. Based on this background, a review of mechanical response tests will contribute to a better awareness. In this paper, three types of mechanical behaviours are discussed including axial compressive behaviour, out-of-plane flexural behaviour, and cyclic behaviour. The previous researches on the mechanical performance of LEM-infilled CFS walls were reviewed. And the typical failure patterns and general results were described and discussed. This work will provide an excellent reference to current practice and future exploration.

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Section: Test Resultsmentioning

confidence: 99%

Mechanical behavior analysis of LEM-infilled cold-formed steel walls

Wang¹,

Wang²,

Guo³

2022

Sustain. Struct.

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“…Therefore, the stress-strain curve (including compression and tensile properties) suggested in GB50010-2010 [25] was used to simulate the foam concrete, as shown in Figure 10b. The ideal elastoplastic model was adopted to simplify the constitutive of calcium silicate plates [17,22], as shown in Figure 10c. The material properties of the steel and concrete are discussed in Section 2.2.…”

Section: Methodsmentioning

confidence: 99%

Experimental and Numerical Study on Axial Compression Cold-Formed Steel Composite Wall under Concentrated Loads

Fang

Qian

et al. 2023

Buildings

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This paper presents the experimental and numerical studies in the investigation of the concentrated compressive behaviors of cold-formed steel-foam concrete composite wall. The failure modes, load–displacement curves, and load–strain curves of the specimens were obtained from the experiments. The infilled specimen failed due to distortional buckling of the end stud and cracking of the concrete near the corner of the wall. The strength of the high strength cold-formed steel was not being fully utilized. A finite element model was established by ABAQUS software and validated by the test results to investigate the effect of the concrete strength, steel strength, the spacing between stud openings, and the thickness of the concrete protective layer on the behaviors of the composite wall. The results indicate that the improvement of concrete strength has the most obvious effect on the bearing capacity of the composite wall, while the changes in steel strength, concrete cover thickness, and hole spacing have limited effects.

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“…Scholars have carried out preliminary research and exploration on multiple types and different combinations of composite walls. Research has shown that composite walls have good deformation or energy dissipation capabilities and other excellent performance characteristics [1][2][3][4][5]. In addition, the research field of the impact resistance of composite walls is gradually attracting more attention.…”

Section: Introductionmentioning

confidence: 99%

“…According to the Hertz contact theory, it is assumed that the falling sandbag satisfies the Von Mises yield criterion [17]. The calculation formula for the stress of the yield pressure in the plastic area of the collision contact surface is as shown in Equation (5).…”

mentioning

confidence: 99%

Analytical Research on the Impact Test of Light Steel Keel and Lightweight Concrete of Composite Wall

2022

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In order to study the impact resistance of light steel keel and lightweight concrete of composite walls (LSKLCW) under low-velocity impact, four composite wall specimens were designed to conduct dynamic simulation impact tests, and the failure mode, time-history curves of strain and displacement were analyzed and studied using test equipment and a loading system. The results show that the failure characteristics of the composite wall sample were elastic–plastic. Moreover, the vertical displacement and strain at the most unfavorable collision point were linearly related to the impingement height. Furthermore, the capacity of the composite wall (such as crack resistance, elastic–plastic deformation and energy dissipation) was affected by the concrete strength and the arrangement of the light steel netting. In addition, the impact resistance of the wall was significantly improved when the concrete strength was enhanced and the light steel netting was installed. Lastly, the test results were fitted and verified through the impact force calculation model of the composite wall, and then the accuracy of the test model was analyzed. The certain experimental basis and theoretical analysis basis for the impact resistance research of the composite wall can be provided by these research results.

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Study on axial compression mechanical behavior of cold-formed thin-walled C-shaped steel composite wall sheathed with straw board on both sides

Cited by 17 publications

References 23 publications

Mechanical behavior analysis of LEM-infilled cold-formed steel walls

Mechanical behavior analysis of LEM-infilled cold-formed steel walls

Experimental and Numerical Study on Axial Compression Cold-Formed Steel Composite Wall under Concentrated Loads

Analytical Research on the Impact Test of Light Steel Keel and Lightweight Concrete of Composite Wall

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