Chien-Tai Yang
Research Subjects
Research Interests
Chien-Tai Yang has a total of 2 co-authors. Here are the top co-authors by number of shared publications:
- Anoosh Shamsabadi
Senior Bridge Engineer, Office of Earthquake Engineering, California Dept. of Transportation, 1801 30th St., Sacramento, CA 95816
1 shared publication - Hubert Law
Earth Mechanics, Inc., 17800 Newhope Street, Suite B, Fountain Valley, CA 92708
1 shared publication
Latest Publications
- 14 May 2008
- Published by American Society of Civil Engineers (ASCE)
- p. 1-10
Seismic Analyses for the Fourth Bore of Caldecott Tunnel
This paper presents a brief summary of seismic analyses for Caldecott Tunnel Improvement Project. It includes seismic hazard analysis, wave scattering analyses to evaluate soil structure interaction (SSI) for the proposed 4th bore, and development of seismic coefficient for slope stability design. Probabilistic Seismic Hazard Analysis (PSHA) was used to establish the rock motion criteria; 1,500-year and 300-year return periods were adopted for the Safety Evaluation Earthquake (SEE) and Functional Evaluation Earthquake (FEE), respectively. The wave scattering analyses were performed using the spectrum-compatible time histories to account for localized geologic features including site specific topography and soil properties specific to the current project. The analyses enable evaluation of the degree of ground distortion that contributes to racking and ovaling of the tunnel liner. Seismic coefficients for several critical slopes near portals were also derived considering the concept of wave propagation within the slope mass.
- 14 May 2008
- Published by American Society of Civil Engineers (ASCE)
- p. 1-10
Seismic Analyses for the Fourth Bore of Caldecott Tunnel
This paper presents a brief summary of seismic analyses for Caldecott Tunnel Improvement Project. It includes seismic hazard analysis, wave scattering analyses to evaluate soil structure interaction (SSI) for the proposed 4th bore, and development of seismic coefficient for slope stability design. Probabilistic Seismic Hazard Analysis (PSHA) was used to establish the rock motion criteria; 1,500-year and 300-year return periods were adopted for the Safety Evaluation Earthquake (SEE) and Functional Evaluation Earthquake (FEE), respectively. The wave scattering analyses were performed using the spectrum-compatible time histories to account for localized geologic features including site specific topography and soil properties specific to the current project. The analyses enable evaluation of the degree of ground distortion that contributes to racking and ovaling of the tunnel liner. Seismic coefficients for several critical slopes near portals were also derived considering the concept of wave propagation within the slope mass.