Intermittently stiffened cold-formed steel GFRP composite lightweight built-up beams: Experimental investigation and performance assessment

Dar, M. Adil; Narayanan, Subramanian; Ghowsi, Ahmad Fayeq; Anbarasu, M.; Hajirasouliha, Iman; Haris, Sheikh; Dar, A.R.

doi:10.1016/j.tws.2023.110630

Cited by 9 publications

(4 citation statements)

References 40 publications

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“…Particularly, GFRP boards have outperformed wood boards in enhancing sectional compactness. Furthermore, GFRP planks have substantially increased the flexural capacity of traditional CFS built-up beams [44].…”

Section: The Influence Of Sheathing and Benefits In Cfs Constructionmentioning

confidence: 99%

Investigating the Factors Influencing the Strength of Cold-Formed Steel (CFS) Sections

Hussein,

Hussein

2024

Buildings

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The utilization of cold-formed steel (CFS) sections in construction has become widespread due to their favorable attributes, including their lightweight properties, high strength, recyclability, and ease of assembly. To ensure their continued safe and efficient utilization, this review provides a comprehensive investigation into the factors influencing the strength of CFS members. This analysis encompasses design codes, prediction methodologies, material properties, and various structural configurations. This review uncovers discrepancies among existing design codes, particularly noting conservative predictions in AISI and AS/NZS standards for composite and built-up sections. Additionally, the effectiveness of prediction methods such as the direct strength method and effective width method varies based on specific structural configurations and loading conditions. Furthermore, this review delves into recent advancements aimed at enhancing fire resistance, connection design, and the composite behavior of CFS structures. The influence of factors such as eccentricity, sheathing materials, and bolt spacing on structural performance is also examined. This study underscores the crucial role of accurate prediction methods and robust design standards in ensuring the structural integrity and safety of CFS constructions. Through a comparative analysis, it is revealed that AISI and AS/NZS standards exhibit conservatism in predicting nominal buckling loads compared to experimental data. Conversely, a non-linear finite element analysis demonstrates a strong correlation with laboratory tests, offering a more accurate prediction of nominal buckling capacity. Overall, this review offers comprehensive insights aimed at optimizing CFS structural design practices. By identifying key areas for future research and development, this work contributes to the ongoing advancement of safe and efficient CFS construction applications.

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Section: The Influence Of Sheathing and Benefits In Cfs Constructionmentioning

confidence: 99%

Investigating the Factors Influencing the Strength of Cold-Formed Steel (CFS) Sections

Hussein,

Hussein

2024

Buildings

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“…A similar work was further extended to exural-strengthening of un-symmetrical built-up channel sections [34,35]. Studies [36][37][38] on use of FRP boards for strengthening of CFS composite built-up columns and beams were also available which reported signi cant enhancement in the structural performance (both axial capacity and stiffness) in comparison to bare steel specimens.…”

Section: Introductionmentioning

confidence: 99%

CFRP strengthening of web perforated CFS lipped channel short columns: An experimental study

Vivek,

Baskar,

Asha

2024

Structures

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“…The SCS sandwich beam has recently been explored as a floating ice load-resistant wall for the outer shell of Arctic coastal constructions. sights into their behavior and performance characteristics [44]. Spot welding is a viable and efficient method for joining cold-formed steel components in built-up beams [45].…”

Section: Introductionmentioning

confidence: 99%

Behaviour of Steel-Concrete-Steel Sandwich Beams with Novel Enhanced C-Channels

Ayyadurai,

Shanmugam,

Ravindran

2023

Buildings

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As the load increases, most composite beams generally experience failure in both shear and flexural behavior. This outcome highlights the critical challenges of achieving sufficient strength and structural integrity in such beams. The proposed study has used the cold-formed behavior of an Enhanced C-channel (EC) shear connectors and Light Weight Concrete (LWC) to examine the new Steel-Lightweight Concrete-Steel sandwich Beams (SLCSB). The ECs have provided significant shear resistance at the faceplate-LWC interfacial interface and the tension separation resistance for faceplates (cold form steel) from the LWC core. Cold Form Steel (CFS) is the most often used substitute because of its high productivity and practicality in the field. Four different composite beams are examined in the proposed research with different ECs spacing. The beams’ top and bottom face plates are covered using CFS (1.6 mm). In addition to that, two different types of shear connectors are used. Two unique longitudinal spacing of 100 mm and 150 mm are also used for one with lipped ECs and without lipped ECs. Importantly, self-tapping screws are used to secure ECs in place between the top and bottom of the face plates. The effectiveness of the composite beams with various shear connector spacing subjected to a two-point load test is assessed through a series of experiments.

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Intermittently stiffened cold-formed steel GFRP composite lightweight built-up beams: Experimental investigation and performance assessment

Cited by 9 publications

References 40 publications

Investigating the Factors Influencing the Strength of Cold-Formed Steel (CFS) Sections

Investigating the Factors Influencing the Strength of Cold-Formed Steel (CFS) Sections

CFRP strengthening of web perforated CFS lipped channel short columns: An experimental study

Behaviour of Steel-Concrete-Steel Sandwich Beams with Novel Enhanced C-Channels

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