Behaviour of Cold Formed Steel Built-Up Channel Columns Strengthened Using CFRP

Naganathan, Sivakumar; Chakravarthy, H. G. Nahushananda; Anuar, N. A.; Kalavagunta, Sreedhar; Mustapha, Kamal Nasharuddin

doi:10.1007/s13296-019-00293-5

Cited by 9 publications

(3 citation statements)

References 29 publications

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“…In addition, there is a considerable reduction in the strain at the ultimate load point. The provision of interior or exterior lip also increased the ultimate load to buckling by 15…”

Section: Strain At the Local Buckling Zonementioning

confidence: 99%

“…Closed cross-sections perform better when compared to open cross-sections. Naganathan et al, 2020, conducted an experimental investigation on CFS columns wrapped with carbon fibre reinforced polymer and observed that wrapping strengthened and delayed the local buckling that occurred in the CFS column [15]. Dar, 2021, reinforced the CFS column using glass fiber reinforced polymer planks and it was experimentally observed that reinforcement improved the axial load capacity and delayed the local buckling [16].…”

Section: Introduction *mentioning

confidence: 99%

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Effect of Lateral Load on Local Buckling of Latex Wrapped Cold Formed Steel Columns

NARASIMHAN

Henderson

2023

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This paper reports the experimental investigation conducted on unwrapped and latex wrapped cold-formed steel column. Various column cross-sections are subjected to repeated lateral loading till failure. All the columns were observed to fail in local buckling. The column cross-section dimension, provision of interior and exterior lip, and the latex wrapping of the columns influenced the lateral load to failure. Increasing the web length of a column section from 100 to 200 mm increased the load-carrying capacity of the column by 70 to 100 %. The local buckling was initiated in the flange portion of the column. The column section with no lip and interior lip exhibited inward buckling of the flange. The column with exterior lip exhibited outward buckling. The provision of lip and latex wrapping did not influence the initial load-displacement behavior of the columns. However, it increased the load-carrying capacity of the sections. Energy absorption index and ductility factor were calculated and the effect of latex wrapping of the columns on these parameters was evident.

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“…In addition, there is a considerable reduction in the strain at the ultimate load point. The provision of interior or exterior lip also increased the ultimate load to buckling by 15…”

Section: Strain At the Local Buckling Zonementioning

confidence: 99%

Section: Introduction *mentioning

confidence: 99%

Effect of Lateral Load on Local Buckling of Latex Wrapped Cold Formed Steel Columns

NARASIMHAN

Henderson

2023

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“…Unfortunately, traditional methods using welded connections or mechanical fasteners can lead to a weakening of the cross-section of TWCFS elements. The research conducted in recent years has shown that a method of reinforcing TWCFS elements using CFRP composites [2][3][4][5] joined by bonded joints [6,7] can be very beneficial due to its simplicity and nondestructive nature.…”

Section: Introductionmentioning

confidence: 99%

Structural behavior of sigma‐type thin‐walled cold‐formed steel beams reinforced with CFRP textile

Rzeszut,

Dybizbański

2023

ce papers

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The purpose of the research presented in this article was to verify the advanced numerical model. The model was made in ABAQUS software using the finite element method (FEM). The verification consisted of comparing the force‐displacement relationship for the numerical model and results from full‐scale laboratory tests. The research conducted concerns the strengthening of thin‐walled cold‐formed steel sigma beams with CFRP mats. The originality of the proposed strengthening method lies in the fact that the mats are bonded across the cross‐section to form a segmental closed cross‐section. Full‐scale laboratory tests were conducted on three Σ200×70×2 beams subjected to four‐point bending. SikaWrap 230 C CFRP mats and SikaDur 330 adhesive were used to reinforce the beams. The mats were applied to the edge bends of the beams at a width of 300 mm. It was stated that the current numerical model, despite its high degree of sophistication, does not fully meet the conditions obtained in the laboratory.

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Analysis and Design Approaches of Cold-Formed Steel Members—A Review

Hema

Chakravarthy

2022

Lecture Notes in Civil Engineering

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Behaviour of Cold Formed Steel Built-Up Channel Columns Strengthened Using CFRP

Cited by 9 publications

References 29 publications

Effect of Lateral Load on Local Buckling of Latex Wrapped Cold Formed Steel Columns

Effect of Lateral Load on Local Buckling of Latex Wrapped Cold Formed Steel Columns

Structural behavior of sigma‐type thin‐walled cold‐formed steel beams reinforced with CFRP textile

Analysis and Design Approaches of Cold-Formed Steel Members—A Review

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