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Seismic Design for 1-15 Salt Lake City |
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| Title: |
Seismic Design for 1-15 Salt Lake City |
| Author(s): |
Robert B. Anderson, Saber M. Abdel-Ghaffar, and Yolanda Labia |
| Publication: |
Concrete International |
| Volume: |
23 |
| Issue: |
02 |
| Date: |
February 1, 2001 |
| ABSTRACT |
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The reconstruction of the I-15 corridor through the heart of Salt Lake City, Utah, is a massive $1.6 billion project encompassing 27 km (17 mi) of freeway. The project scope involves building 144 new bridges over four and a half years. To expedite completion of construction, the Utah Department of Transportation (UDOT) selected the design-build delivery process. The I-15 Reconstruction project represents one of the first attempts to implement a displacement-based seismic criteria for a major highway project. These comprehensive seismic criteria addressed modeling, analysis and design procedures. They also provided guidance regarding the selection of different materials and seismic strategies. The multi-faceted approach addressed all aspects of design including constructibility. This resulted in an optimum combination of code criteria and detailing recommendations that produced safe and reliable structures that could be built efficiently and economically.
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