Textbook
Structural Health Monitoring of Civil Infrastructure Systems
While interest in structural health monitoring (SHM) has increased as related to both research and implementation, its basis and motivation can be traced to the very earliest endeavors of mankind to conceptualize, construct, worry about deterioration, and then attempt to repair (or otherwise prolong the life) of a structure. This is largely in response to the fact that over time all structures deteriorate and it is essential that the owner/operator has a good idea as to the extent of deterioration, its effect of remaining service-life and capacity, and has sufficient information to make a well-informed decision regarding optimality of repair. Thus it represents an attempt at deriving knowledge about the actual condition of a structure, or system, with the aim of not just knowing that its performance may have deteriorated, but rather to be able to assess remaining performance levels and life. This ability will, at some point in the near future, enable those associated with the operation of civil infrastructure systems to handle both the growing inventory of deteriorating and deficient systems and the need for the development of design methods that inherently prescribe risk to a system based on usage and hence differentiate between systems based on frequency of use and type of operating environment. Further such a system would enable decisions related to resource allocation to be made on a real time basis rather than years ahead thereby allowing for maintenance plans to be based on actual state of a structure and need rather than a time-based schedule. This would allow for real-time resource allocation thereby enabling a more optimal approach to maintenance and replacement of structural inventory.
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