Flexural behaviour of notched steel beams strengthened with a prestressed CFRP plate subjected to fatigue damage and wetting/drying cycles

2022 ◽  
Vol 250 ◽  
pp. 113430
Author(s):  
Junhui Li ◽  
Miaochang Zhu ◽  
Jun Deng
Keyword(s):  
Fatigue Damage ◽  
Steel Beams ◽  
Flexural Behaviour ◽  
Cfrp Plate

Experimental study of notched steel beams strengthened with a CFRP plate subjected to overloading fatigue and wetting/drying cycles

2019 ◽  
Vol 209 ◽  
pp. 634-643 ◽  
Author(s):  
Junhui Li ◽  
Jun Deng ◽  
Yi Wang ◽  
Jianji Guan ◽  
Hengzhong Zheng
Keyword(s):  
Experimental Study ◽  
Steel Beams ◽  
Cfrp Plate

Experimental and Theoretical Investigation on Flexural Behavior of Corroded Steel Beams Strengthened by CFRP Plate

2020 ◽  
Vol 24 (7) ◽  
pp. 2160-2172
Author(s):  
Zong-Xing Zhang ◽  
Shan-Hua Xu ◽  
Lin Mu ◽  
Sheng-Yuan Peng
Keyword(s):  
Theoretical Investigation ◽  
Flexural Behavior ◽  
Steel Beams ◽  
Cfrp Plate

Flexural behaviour of axially and rotationally restrained cold-formed steel beams subjected to fire

2016 ◽  
Vol 98 ◽  
pp. 39-47 ◽  
Author(s):  
Luís Laím ◽  
João Paulo C. Rodrigues ◽  
Hélder D. Craveiro
Keyword(s):  
Steel Beams ◽  
Flexural Behaviour ◽  
Cold Formed Steel

Failure Modes of CFRP Flexural Strengthened Steel I-Beams

2011 ◽  
Vol 471-472 ◽  
pp. 590-595 ◽  
Author(s):  
Kambiz Narmashiri ◽  
Mohd Zamin Jumaat ◽  
Nor Hafizah Ramli Sulong
Keyword(s):  
Failure Modes ◽  
Steel Structures ◽  
Fiber Reinforced Polymer ◽  
Bending Test ◽  
Steel Beams ◽  
Numerical Studies ◽  
Reinforced Polymer ◽  
Cfrp Plate ◽  
Critical Regions ◽  
Incremental Loading

This paper presents the experimental and numerical studies on the flexural strengthened steel I-beams by using Carbon Fiber Reinforced Polymer (CFRP) strips. Nowadays, strengthening existing steel structures by using CFRP has been widely interested. One of the common usages of CFRP to strengthen steel beams is the flexural upgrading. In this case, CFRP strips are pasted on the tensile flange to improve flexural behaviors. The problems that are frequently reported for CFRP strengthened steel beams are the debonding, delaminating (peeling), and splitting. Identification these failure modes are essential to provide an appropriate level of safety for strengthened steel beams. To investigate the CFRP failure modes, four strengthened steel I-beams were chosen. The CFRP plates with different thicknesses in single and double (splice) layers were used. Both experimental test (four-points bending test) and numerical simulation (full 3D simulation with ANSYS) were employed. The incremental loading was applied until failure while deformations in the critical regions were recorded. The results reveal that for the CFRP flexural strengthened steel beams the following failure modes occurred: (a) debonding at the CFRP plate tips, (b) debonding below point loads, (c) delaminating at the ends of CFRP plate, and (d) splitting below point loads. The sequence of failure modes depended on the specifications of CFRP plate. Some recommendations are provided to overcome/retard these failures.

Flexural Behaviour of Cold-Formed Steel Beams

2013 ◽  
pp. 133-138
Author(s):  
Luís Laím ◽  
João Paulo C. Rodrigues ◽  
Luís S. Silva
Keyword(s):  
Steel Beams ◽  
Flexural Behaviour ◽  
Cold Formed Steel

Finite element analysis of interfacial stresses in steel beams strengthened with a bonded hygrothermal aged CFRP plate

2011 ◽  
Vol 21 (2) ◽  
pp. 193-207
Author(s):  
Mohammed Ameur ◽  
Tahar Hassaine Daouadji ◽  
Boussad Abbes ◽  
Abdeouahed Tounsi ◽  
Adda Bedia El Abbes
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Steel Beams ◽  
Element Analysis ◽  
Interfacial Stresses ◽  
Cfrp Plate
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