As we all know that Taiwan is an island surrounded by oceans. Around the island are many international commercial harbors, domestic fishery harbors and harbors for industrial purposes. However, these harbors are facing safety challenges from the strong wind induced waves during monsoon seasons and typhoon due to tropical depressions. The material degradation, fatigue induced from vibrations and the forced deformation of the whole structural system can not usually be observed until serious damages are realized. It is too late to do the fixing job or to replace the damaged components for the harbor while spending multi-million dollars on rebuilding the damaged facilities is the left choice. If we may find the gradual damages of the harbor in advance and establish a procedure to do the minor fixing or correcting works then during the hash environmental situations the serious damages may be prevented and lots of money can be saved also.
There are many ways to do a routine inspection on the structures. However, for the structures in the harbor usually it is not quite easy to do this due to the fact that most structures are under the water. Therefore how to find the efficient and economic methods to investigate the harbor damages corresponding to various material constructions and based on the examination results to establish an alert system and to grade the damage-state will be important. The investigation methods may generally be divided into a general method and method of more detailed. The general methods usually need more experiences but less equipment. However, for the more detailed examination, more advanced equipment and scheme are required. After the inspection how to coordinate the raw data and find the relationship between the data and the damage-state of the structure will be one of the tasks.
It is the purpose of this project to find efficient means for the inspection and set up a standard procedure to inspect the harbor structures routinely. In terms of the method, timing, schedule, frequency and appropriateness the evaluation standard for the structural damage is suggested and based on the evaluated results the damage grade is defined quantitatively for the harbor structures. Thus the harbor bureau may effectively manage the harbor structure and maintain the operational safety for the harbor.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0917101-085323 |
| Date | 17 September 2001 |
| Creators | Yu, Tzong-Hong |
| Contributors | Hsien-Hua Lee, Yang-Yih Chen, Chin-Tong Cheng |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | Cholon |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0917101-085323 |
| Rights | withheld, Copyright information available at source archive |
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