ABSTRACT

This chapter explores how to integrate structural health monitoring (SHM) technology with the life-cycle management (LCM) of civil structures. It introduces the concept of SHM-based LCM of civil structures. SHM technology is based on a comprehensive sensory system and a sophisticated data processing system implemented with advanced information technology and supported by cultivated computer algorithms. In a successful SHM-based LCM system, knowledge of the status of the bridge structure is required for the managers to make optimal decisions on inspection, maintenance or repair schedules with the aim of ensuring its serviceability and safety. The degree of multi-scale modelling of the bridge should be considered in conjunction with the critical areas identified and the computational demands of the stress analysis method. The multi-scale finite element model of a bridge should be based not only on modal data but also on stress data to ensure confidence in both global and local simulated responses.