Structural Strengthening and Reinforcement using Grid Composites

This book provides a comprehensive introduction to the theoretical foundations, key technologies, and engineering applications of fiber‑reinforced polymer (FRP) grids for strengthening and reinforcing concrete structures. Currently, many existing reinforced concrete structures have experienced performance deterioration, creating an urgent need for effective strengthening solutions. Owing to their high strength‑to‑weight ratio, excellent durability, and ease of construction, FRP grids have emerged as a promising material for structural strengthening. Drawing upon experimental investigations, theoretical analyses, and numerical simulations, this book systematically presents the interfacial behavior, flexural performance, shear performance, seismic performance, and design methods of FRP grid‑strengthened structures. In addition, it introduces the use of FRP grids as reinforcing materials in new concrete structures. Covering applications in bridges, tunnels, buildings, and underwater constructions, this book is a valuable resource for engineers, researchers,
and graduate students in civil, structural, and materials engineering, as well as professionals involved in structural design, manufacturing, and rehabilitation.

Key Features

• Provides a detailed exploration of FRP grids, including constituent materials, manufacturing processes, mechanical properties, and structural behavior.

• Features comprehensive discussions on bond characteristics, debonding mechanisms, and stress transfer at the grid–concrete interface, supported by experimental, analytical, and numerical investigations to enhance the understanding of failure modes and interfacial behavior.

• Covers a wide range of applications, including flexural, shear, and seismic strengthening, spalling resistance, and the use of FRP grids as reinforcement for new structures, offering practical solutions for both retrofitting and new construction projects.