TY - GEN
T1 - Preventive Fatigue Strengthening of Steel Structures with Bonded CFRP—Efficiency Demonstration on a Real Bridge
AU - Benzarti, Karim
AU - Chataigner, Sylvain
AU - Wahbeh, Mazen
AU - Boundouki, Rami
AU - Martin, Elena
AU - Sopena, Luis
AU - Zalbide, Maria
AU - Garcia-Sanchez, David
AU - Birtel, Veit
AU - Lehmann, Frank
AU - Gemignani, Gianluca
N1 - Publisher Copyright:
© 2023, Canadian Society for Civil Engineering.
PY - 2023
Y1 - 2023
N2 - An important objective of sustainable development applied to bridge infrastructure is to develop and deploy effective strengthening solutions, with a view to increasing the service life of existing structures. Steel bridges are prone to fatigue and their remaining service life can be evaluated after careful diagnosis of induced structural damages. However, it is generally difficult to assess the extend of damage caused by fatigue at an early stage before crack initiation. Besides, old structures are particularly vulnerable to fatigue as old steels exhibit a rather brittle behavior, but most design codes did not take into account fatigue effects before the 1970s. To address these issues, an assessment method and a preventive strengthening solution based on the use of adhesively bonded UHM (Ultra-High Modulus) CFRP (Carbon Fiber Reinforced Polymer) plates were developed and applied to an existing bridge for validation (Jarama bridge owned by the Community of Madrid in Spain). Strain measurement collected during load tests was analyzed to verify that the reinforcement works according to theoretical expectations, and different parameters were studied such as the influence of low traffic during CFRP installation. In the end, this field demonstration provided clear evidence of the efficiency of the developed solution.
AB - An important objective of sustainable development applied to bridge infrastructure is to develop and deploy effective strengthening solutions, with a view to increasing the service life of existing structures. Steel bridges are prone to fatigue and their remaining service life can be evaluated after careful diagnosis of induced structural damages. However, it is generally difficult to assess the extend of damage caused by fatigue at an early stage before crack initiation. Besides, old structures are particularly vulnerable to fatigue as old steels exhibit a rather brittle behavior, but most design codes did not take into account fatigue effects before the 1970s. To address these issues, an assessment method and a preventive strengthening solution based on the use of adhesively bonded UHM (Ultra-High Modulus) CFRP (Carbon Fiber Reinforced Polymer) plates were developed and applied to an existing bridge for validation (Jarama bridge owned by the Community of Madrid in Spain). Strain measurement collected during load tests was analyzed to verify that the reinforcement works according to theoretical expectations, and different parameters were studied such as the influence of low traffic during CFRP installation. In the end, this field demonstration provided clear evidence of the efficiency of the developed solution.
UR - http://www.scopus.com/inward/record.url?scp=85140487169&partnerID=8YFLogxK
U2 - 10.1007/978-3-031-09632-7_53
DO - 10.1007/978-3-031-09632-7_53
M3 - Conference contribution
AN - SCOPUS:85140487169
SN - 9783031096310
T3 - Lecture Notes in Civil Engineering
SP - 459
EP - 467
BT - 8th International Conference on Advanced Composite Materials in Bridges and Structures - Volume 1
A2 - Benmokrane, Brahim
A2 - Mohamed, Khaled
A2 - Farghaly, Ahmed
A2 - Mohamed, Hamdy
PB - Springer Science and Business Media Deutschland GmbH
T2 - 8th International Conference on Advanced Composite Materials in Bridges and Structures, ACMBS 2021
Y2 - 5 August 2021 through 7 August 2021
ER -
