报告摘要：

The growing demand for sustainable and resilient infrastructure has driven the development of natural fiber-reinforced polymers (NFRP) as eco-friendly alternatives for concrete strengthening and structural rehabilitation. This lecture explores recent advancements in NFRP composites, focusing on their mechanical properties, durability, and structural applications. Research findings on NFRP confinement efficiency for strengthening pre-damaged concrete structures will be presented, with an emphasis on fiber selection, resin optimization, and hybrid reinforcement strategies. The discussion will cover strength enhancement, modeling, cost-effectiveness, and environmental impact, highlighting the potential of NFRP in enhancing concrete resilience and promoting sustainability.

Beyond material advancements, the lecture will examine structural health monitoring (SHM) techniques for bridges. It will discuss research on failure mechanisms in posttensioned bridge girders with dapped-end and ledge connections, where nonlinear finite-element analysis was used to identify the causes of diagonal and horizontal cracking. Based on these findings, effective rehabilitation strategies will be proposed. Additionally, the lecture will highlight advancements in FEM modeling that incorporate extreme loading and environmental effects, such as prestressing loss and corrosion, to better predict long-term bridge performance and durability. These studies provide valuable insights into structural performance evaluation, failure prevention, and the sustainability of bridge infrastructure.

报告人简介：

Dr. Tidarut Jirawattanasomkul is an Associate Professor in Civil Engineering at Chulalongkorn University, Thailand, with a Ph.D. from Hokkaido University. Her expertise focuses on structural engineering, rehabilitation, and bridge design, with an emphasis on sustainable materials like natural fiber-reinforced polymers (NFRP) and bioresin-based composites for concrete strengthening. She has published extensively on NFRP confinement of pre-damaged concrete, including its application in strengthening bridge structures against deterioration and extreme loading conditions. Her research explores advanced composite materials for bridge deck reinforcement, and innovative repair strategies for aging infrastructure. She has also investigated the use of fiber-reinforced polymers (FRP) in retrofitting and load-bearing enhancement of bridges, contributing to safer and more resilient bridge systems. Her work integrates eco-friendly materials with practical bridge engineering applications, ensuring durability, cost-effectiveness, and sustainability in infrastructure rehabilitation and structural health monitoring.