A study on seismic capacity of overhead transportation systems in a high-tech fab

George C. Yao, W. J. Chou, J. C. Wang, W. J. Lin, C. L. Tsai

Research output: Contribution to conferencePaper

Abstract

This study investigates the seismic capacity of the OHS (Overhead System), a transport equipment system in the cleanroom of high-tech factories. By using full-scale static cyclic loading tests, the fracture strength and failure modes at different stages of lateral displacement could be observed. The retrofit program proposed for the OHS not only reduced the problem of the loosened connection points, but also efficiently increased system strength to the designed bracing strength. Structural analysis software SAP2000 was used to build a simulated numerical model, and nonlinear static pushover analysis was performed. We then compared the analysis results to those of the full-scale experiment to understand the internal force distribution. Finally, the computer model analysis quantified system retrofit proposals - effectively enhancing system strength with the least number of members added.

Original languageEnglish
DOIs
Publication statusPublished - 2014 Jan 1
Event10th U.S. National Conference on Earthquake Engineering: Frontiers of Earthquake Engineering, NCEE 2014 - Anchorage, United States
Duration: 2014 Jul 212014 Jul 25

Other

Other10th U.S. National Conference on Earthquake Engineering: Frontiers of Earthquake Engineering, NCEE 2014
CountryUnited States
CityAnchorage
Period14-07-2114-07-25

Fingerprint

transportation system
Static analysis
Structural analysis
Failure modes
Industrial plants
Fracture toughness
Numerical models
loading test
cyclic loading
structural analysis
systems analysis
Experiments
software
experiment
analysis
distribution
programme

All Science Journal Classification (ASJC) codes

  • Geotechnical Engineering and Engineering Geology

Cite this

Yao, G. C., Chou, W. J., Wang, J. C., Lin, W. J., & Tsai, C. L. (2014). A study on seismic capacity of overhead transportation systems in a high-tech fab. Paper presented at 10th U.S. National Conference on Earthquake Engineering: Frontiers of Earthquake Engineering, NCEE 2014, Anchorage, United States. https://doi.org/10.4231/D3J09W510
Yao, George C. ; Chou, W. J. ; Wang, J. C. ; Lin, W. J. ; Tsai, C. L. / A study on seismic capacity of overhead transportation systems in a high-tech fab. Paper presented at 10th U.S. National Conference on Earthquake Engineering: Frontiers of Earthquake Engineering, NCEE 2014, Anchorage, United States.
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Yao, GC, Chou, WJ, Wang, JC, Lin, WJ & Tsai, CL 2014, 'A study on seismic capacity of overhead transportation systems in a high-tech fab' Paper presented at 10th U.S. National Conference on Earthquake Engineering: Frontiers of Earthquake Engineering, NCEE 2014, Anchorage, United States, 14-07-21 - 14-07-25, . https://doi.org/10.4231/D3J09W510

A study on seismic capacity of overhead transportation systems in a high-tech fab. / Yao, George C.; Chou, W. J.; Wang, J. C.; Lin, W. J.; Tsai, C. L.

2014. Paper presented at 10th U.S. National Conference on Earthquake Engineering: Frontiers of Earthquake Engineering, NCEE 2014, Anchorage, United States.

Research output: Contribution to conferencePaper

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AB - This study investigates the seismic capacity of the OHS (Overhead System), a transport equipment system in the cleanroom of high-tech factories. By using full-scale static cyclic loading tests, the fracture strength and failure modes at different stages of lateral displacement could be observed. The retrofit program proposed for the OHS not only reduced the problem of the loosened connection points, but also efficiently increased system strength to the designed bracing strength. Structural analysis software SAP2000 was used to build a simulated numerical model, and nonlinear static pushover analysis was performed. We then compared the analysis results to those of the full-scale experiment to understand the internal force distribution. Finally, the computer model analysis quantified system retrofit proposals - effectively enhancing system strength with the least number of members added.

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Yao GC, Chou WJ, Wang JC, Lin WJ, Tsai CL. A study on seismic capacity of overhead transportation systems in a high-tech fab. 2014. Paper presented at 10th U.S. National Conference on Earthquake Engineering: Frontiers of Earthquake Engineering, NCEE 2014, Anchorage, United States. https://doi.org/10.4231/D3J09W510