FRP-Strengthened Metallic Structures

By Xiao-Ling Zhao

© 2013 – CRC Press

289 pages | 137 B/W Illus.

Purchasing Options:
Hardback: 9780415468213
pub: 2013-09-13
US Dollars$167.95

About the Book

Repairing or strengthening failing metallic structures traditionally involves using bulky and heavy external steel plates that often pose their own problems. The plates are generally prone to corrosion and overall fatigue. Fiber-reinforced polymer (FRP), a composite material made of a polymer matrix reinforced with fibers, offers a great alternative for strengthening metallic structures, especially steel structures such as bridges, buildings, offshore platforms, pipelines, and crane structures.

FRP-Strengthened Metallic Structures explores the behaviour and design of these structures, from basic concepts to design recommendations. It covers bond behaviour between FRP and steel, and describes improvement of fatigue performance, bending, compression, and bearing forces, strengthening of compression and steel tubular members, strengthening for enhanced fatigue and seismic performance, and strengthening against web crippling of steel sections. It also provides examples of performance improvement by FRP strengthening.

• Summarizes worldwide research on the FRP strengthening of metallic structures

• Contains several topics not generally covered in existing texts

• Presents comprehensive, topical references throughout the book

The book outlines the applications, existing design guidance, and special characteristics of FRP composites within the context of their use in structural strengthening. While the major focus is on steel structures, it also describes others, such as aluminium structures. This book is suitable for structural engineers, researchers, and university students interested in the FRP strengthening technique.

Xiao-Ling Zhao is chair of structural engineering at Monash University, Australia, and is author of Concrete-Filled Tubular Members and Connections, also published by Taylor & Francis.

Table of Contents


Applications of FRP in strengthening metallic structures

Improved performance due to FRP strengthening

Current knowledge on FRP strengthening of metallic structures

Layout of the book


FRP composites and metals


Fibre-reinforced polymer


Cast/wrought iron, steel, and aluminium

Future work


Behaviour of bond between FRP and metal


Testing methods

Failure modes

Bond–slip model

Effect of temperature on bond strength

Effect of cyclic loading on bond strength

Effect of impact loading on bond strength

Durability of bond between FRP and metal

Future work


Flexural strengthening of steel and steel-concrete

composite beams with FRP laminates


Failure modes

Flexural capacity of FRP-plated steel/composite sections

Lateral buckling

Debonding failures

Other issues

Design recommendation

Design example

Conclusions and future research needs


Strengthening of compression members


Methods of strengthening

Structural behaviour

Failure modes

Capacity of FRP-strengthened steel sections

Capacity of CFRP-strengthened steel members

Plastic mechanism analysis of CFRP-strengthened SHS under large axial deformation

Design examples

Future work


Strengthening of web crippling of beams subject to end bearing forces


Cold-formed steel rectangular hollow sections

Aluminium rectangular hollow sections

LiteSteel beams

Open sections

Design Examples

Future work


Enhancement of fatigue performance


Methods of strengthening

Improvement in fatigue performance

Fatigue crack propagation

Prediction of fatigue life for CCT (Centre-Cracked Tensile) steel plates strengthened by multiple layers of CFRP sheet

Stress intensity factor for CCT steel plates strengthened by CFRP

Future work


About the Author

Prof. Xiao-Ling Zhao obtained his BE and ME from Shanghai JiaoTong University, China, both his PhD and Doctor of Engineering from The University of Sydney, while his MBA (Executive) was jointly awarded by The University of Sydney and University of New South Wales. He was appointed as chair of structural engineering at Monash University in 2001. Prof. Zhao has received fellowships from The Royal Academy of Engineering UK, Swiss National Science Foundation, Humboldt Foundation, Japan Society for Promotion of Science and Chinese "1000-talent" program. He chairs the International Institute of FRP for Construction working group on FRP Strengthened Metallic Structures.

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