Civil Infrastructure Load Models for Structural Health Monitoring
Physical Monitoring Principles
Modeling of Load and Damage Mechanisms in SHM
Published Online: 15 SEP 2009
Copyright © 2009 John Wiley & Sons, Ltd. All rights reserved.
Encyclopedia of Structural Health Monitoring
How to Cite
Peil, U. 2009. Civil Infrastructure Load Models for Structural Health Monitoring. Encyclopedia of Structural Health Monitoring. .
- Published Online: 15 SEP 2009
Load models play an important role in structural health monitoring (SHM). On the one hand, loads and load models are needed for system identification, which is the first step in obtaining a measure of structural health. Different possible loading procedures and their models are discussed in relation to the planned identification outcomes. On the other hand, the characteristics of realistic loads acting on a structure must be known to allow a precise lifetime prediction. In this article, only traffic and wind load models are discussed. Unexpected loads such as earthquakes, blasts, etc., cannot be predicted very accurately; thus, a lifetime assessment is not feasible. A similar situation exists with wind-induced vibrations, e.g., due to vortex shedding, galloping, flutter, etc. These vibrations are usually always dangerous for a structure and may cause fatigue or other types of damage; thus, wind-induced vibrations must be prevented rather than predicted.
- load model;
- weak point;
- inherent damage;
- force controlled;
- deflection controlled;
- electrodynamic exciter;
- unbalanced masses;
- wind effects;