Principal Investigator

Dr. Tidarut Jirawattanasomkul
Kasetsart University (KU), Thailand

ASEAN Co-Investigator

-

Japanese Co-Investigator

Assoc. Prof. Dr. Yasuhiko SATO
Hokkaido University

Awarded year

2016

Program

Collaborative Research Program with Industry (CRI)

Field

Civil Engineering

Abstract

“This research aims to implement the innovative and upgrade schemes in Department of Highway (DOH)™s bridges using the Image Measurement System (IMS) and 3D FEM together with strengthening by FRPs. Throughout Thailand, a national highway network together with one thousand bridges consists of 12 key routes of the Asian Highway (AH) and connected with 17 countries, resulting in excessive traffic volumes to those bridges. Owing to such extensive network and large amount of bridges, a simple assessment based on a visual inspection has been implemented in order to reduce assessment time. This existing assessment in DOH is called Bridge Maintenance Management System (BMMS) based on AASHTO, in which deterioration due to increasing traffic and severe environments like cracks and corrosion are not taken into account. This has led to a lack of in-depth understanding in prediction of actual bridge performances, making them in potentially unsafe. To implement such innovative system properly, a pilot-scale bridge assessment were performed by selecting the DOH bridges with the most severe damage. The damage levels of bridges should be categorized based on deterioration types, such as corrosion due to chloride attack, scouring due to floods, fatigue loading and excessive loading. One of the typical damages found in Thailand is due to excessive loads together with severe environments and disasters. Using the innovative IMS/3D FEM, the actual bridge performance can be evaluated considering those deterioration factors, while reducing time and maintaining high accuracy. After obtaining the actual bridges™ conditions, the FRPs should be proposed with regard to design and criteria used in Thailand. This aspect would explore research opportunity for both partners (i.e. university and industry) to work in-depth on research in order to find operating strategies or mitigation measures. With field application of such technology available for operation under real operating conditions, the investigation on these practical aspects being important for technology developers such as universities and industries to accumulate scientific knowledge as well as technical experiences would be highly possible. At the end of this research, applicable maintenance strategies will be developed and budget allocation will be proposed.”

Project at glance