A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Composite Strengthening of a Bridge
Carbon fiber-reinforced polymer (CFRP) composites offer many benefits for bridge repair, including high strength and modulus, light weight, convenient and rapid implementation, corrosion resistance, minimal interruption to service, reduced labor for installation and maintenance, negligible relaxation under load, and favorable life-cycle costs. Thus, CFRP composites have been widely employed for strengthening for over two decades. CFRP sheets and laminates may be externally bonded (EB) to a concrete substrate, or CFRP strips/rods can be near-surface-mounted (NSM) by inserting and adhesively bonding them into grooves precut into a concrete member. NSM systems have advantages over EB systems, including enhanced bond made possible by the increased contact area and improved durability due to locating the repair material inside the concrete. Also, a number of beam tests have been conducted in the laboratory to examine the load-carrying capacity, fatigue resistance, and ductility of post-tensioned NSM CFRP reinforcement.
Composite Strengthening of a Bridge
Carbon fiber-reinforced polymer (CFRP) composites offer many benefits for bridge repair, including high strength and modulus, light weight, convenient and rapid implementation, corrosion resistance, minimal interruption to service, reduced labor for installation and maintenance, negligible relaxation under load, and favorable life-cycle costs. Thus, CFRP composites have been widely employed for strengthening for over two decades. CFRP sheets and laminates may be externally bonded (EB) to a concrete substrate, or CFRP strips/rods can be near-surface-mounted (NSM) by inserting and adhesively bonding them into grooves precut into a concrete member. NSM systems have advantages over EB systems, including enhanced bond made possible by the increased contact area and improved durability due to locating the repair material inside the concrete. Also, a number of beam tests have been conducted in the laboratory to examine the load-carrying capacity, fatigue resistance, and ductility of post-tensioned NSM CFRP reinforcement.
Composite Strengthening of a Bridge
Woo-tai Jung (author) / Moon-seoung Keum / Jong-sup Park / Jae-yoon Kang / Young-hwan Park / Wonseok Chung / Yail J Kim
2017
Article (Journal)
English
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