Bridge Pier Design "El-Centro matched" PBSD Design |
Characteristics |
Single bridge pier, circular section, modelled as a simple SDOF
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Site |
San Jose, CA Hazard scaled to match the El Centro 1940 NS component spectrum at moderate/long periods |
Perf. Objectives |
1. PoE of system ducitlity > 2 is 10%/50yrs at 60% confidence.
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The bridge pier and its single-degree-of-freedom idealization
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Case study files
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- YFSapp results (initial design)
YFS_BridgePierExample_Section13.5.3.xls
(1.0MB)
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Design 1: 4-story RC MRF Code-like Design |
Characteristics |
4-story RC moment-resistant frame
Perimeter frame
4 moment-resistant bays in each side |
Site |
San Jose, CA |
Perf. Objectives |
1. System ductility = 3.6 for 2/50 hazard level
2. Interstory drift = 2% for 10/50 hazard level
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Elevation and plan of the 4-story building
Static pushover curve of the final design
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Case study files
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- Opensees & Matlab source files
Examples123_MatlabOpenSeesFiles.zip
(17.9MB)
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Design 4: 12-story RC Coupled Shear Wall Code-like Design |
Characteristics |
12-story RC coupled shear wall
Perimeter system
one set of coupled walls per side |
Site |
San Jose, CA |
Perf. Objectives |
1. System ductility = 3.3 at 10%/50yrs hazard level
2. IDR = 2% at 10%/50yrs hazard level
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Elevation and plan of the 12-story building
Wall and coupling beam cross-sections
Static pushover curve of the final design
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Case study files
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- Opensees & Matlab source files
DesignExample4.zip
(900kB)
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Design 5: 7-story cantilever wall Simplified PBSD Design |
Characteristics |
7-story RC cantilever wall
Perimeter system
2 walls per side |
Site |
San Jose, CA |
Perf. Objectives |
1. PoE of IDR>2% is 10%/50yrs at 70% confidence.
2. PoE of base pl. hinge rotation exceeding capacity is 10%/50yrs at 85% confidence.
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Elevation and plan of the 7-story building
Wall cross-section
Static pushover curve of the final design
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Case study files
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- Opensees & Matlab source files
Example5_MatlabOpenSeesFiles.zip
(8.6?B)
- YFSapp results (initial design for PoE @ 70% confidence)
Example5_MethodB_YFS_7storyWall_CF70%_Section19.11.6.xls
(1.1MB)
- YFSapp results (initial design for PoE @ 85% confidence)
Example5_MethodB_YFS_7storyWall_CF85%_Section19.11.6.xls
(1.1MB)
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Design 6: 4-story Unbonded Post-Tensioned RC Wall Informed PBSD Design |
Characteristics |
4-story unbonded post-tensioned RC wall
Perimeter system
one wall in each side |
Site |
San Jose, CA |
Perf. Objectives |
1. PoE of gap opening at wall base > 2cm is 50%/50yrs at 50% confidence.
2. PoE of IDR > 0.7% is 50%/50yrs at 50% confidence.
3. PoE of confined concrete crushing is 1%/50yrs at 90% confidence.
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Elevation and plan of the 4-story building
UPT wall cross-section and static pushover curve of the final design
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Case study files
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- Opensees & Matlab source files
DesignExample2.zip
(900kB)
- YFS-Tapp results (initial design for PoE @ 90% confidence)
Example6_MethodC_YFS-T_4storyUPTWall_CF90%_Section19.12.6.xls
(0.9MB)
- YFS-TNEapp results (initial design for PoE @ 50% confidence)
Example6_MethodC_YFS-TNE_4storyUPTWall_CF50%_Section19.12.6.xls
(0.8MB)
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Records & Tools |
Miscellaneous useful tools and records employed in the above design examples
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- FEMA P695 far field record set
FEMA-P695-FFset.zip
(7.8MB)
- FEMA P-58 Fragility Curve Fit tool
FragilityCurveFitTool.xlsx
(0.02MB)
- Sizing RC sections for biaxial loading (ACI)
aci.flexure.xls
(0.5MB)
- YFSapp (A): Constant yield displacement basis, Pinching hysteresis, Hazard from site PSHA
YFSapp.xls
(0.9MB)
- YFSapp (B): Constant yield displacement basis, Pinching hysteresis, Hazard extrapolated from site design spectrum
YFSapp_DesignSpectrum.xls
(1.1MB)
- YFS-Tapp (A): Constant period basis, Pinching hysteresis, Hazard from site PSHA
YFS-Tapp.xls
(0.9MB)
- YFS-Tapp (B): Constant period basis, Pinching hysteresis, Hazard extrapolated from site design spectrum
YFS-Tapp_DesignSpectrum.xls
(1.1MB)
- YFS-TNEapp (A): Constant period basis, Nonlinear Elastic hysteresis, Hazard from site PSHA
YFS-TNEapp.xls
(0.8MB)
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