Online Resources
M. Aschheim, E. Hernandez-Montes, D. Vamvatsikos
Design of Reinforced Concrete Buildings for Seismic performance: Practical, deterministic and probabilistic approaches
Book Cover

  1. Ch13 Example 0: Simple bridge pier design
  2. Ch19 Example 1: 4-story RC MRF [Code-like Design]
  3. Ch19 Example 2: 4-story RC MRF [Simplified PBSD]
  4. Ch19 Example 3: 4-story RC MRF [Informed PBSD]
  5. Ch19 Example 4: 12-story RC Coupled Shear Wall [Code-like Design]
  6. Ch19 Example 5: 7-story RC Cantilever Shear Wall [Simplified PBSD]
  7. Ch19 Example 6: 8-story Unbonded Post-Tensioned RC Wall [Informed PBSD]
  8. Records & Tools

Bridge Pier Design — "El-Centro matched" PBSD Design
Characteristics Single bridge pier, circular section, modelled as a simple SDOF
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.

The bridge pier and its single-degree-of-freedom idealization

Case study files

  1. YFSapp results (initial design)
    YFS_BridgePierExample_Section13.5.3.xls (1.0MB)
Design 1: 4-story RC MRF — Code-like Design
Characteristics 4-story RC moment-resistant frame
Perimeter frame
5 bays in each side, 3 moment-resistant
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

Elevation and plan of the 4-story building

Static pushover curve of the final design

Case study files

  1. Opensees source files
    DesignExample1.zip (900kB)

 

Design 2: 4-story RC MRF — Simplified PBSD Design
Characteristics 4-story RC moment-resistant frame
Perimeter frame
5 bays in each side, 3 moment-resistant
Site San Jose, CA
Perf. Objectives 1. PoE of IDR>2% is 10%/50yrs at 68% confidence.

Elevation and plan of the 4-story building

Static pushover curve of the final design

Case study files

  1. Opensees & Matlab source files
    DesignExample2.zip (900kB)
  2. YFSapp results (initial design)
    Example2_MethodB_YFS_4storyMRF_CF68%_Section19.8.5.xls (1.15MB)
  3. YFSapp results (reassessment)
    Example2_MethodB_YFS_4storyMRF_CF68%_Section19.8.8.xls (1.15MB)

 

Design 3: 4-story RC MRF — Informed PBSD Design
Characteristics 4-story RC moment-resistant frame
Perimeter frame
5 bays in each side, 3 moment-resistant
Site San Jose, CA
Perf. Objectives 1. PoE of IDR>2% is 10%/50yr at 70% confidence.
2. PoE of system ductility > 1.5 is 50%/50yrs at 70% confidence.
3. PoE of collapse is 1%/50yrs at 90% confidence

Elevation and plan of the 4-story building

Static pushover curve of the final design

Case study files

  1. Opensees & Matlab source files
    DesignExample3.zip (900kB)
  2. YFSapp results (initial design for PoE @ 70% confidence)
    Example3_MethodC_YFS_4storyMRF_CF70%_Section19.9.5.xls (0.9MB)
  3. YFSapp results (initial design for PoE @ 90% confidence)
    Example3_MethodC_YFS_4storyMRF_CF90%_Section19.9.5.xls (0.9MB)
  4. YFSapp results (reassessment for PoE @ 70% confidence)
    Example3_MethodC_YFS_4storyMRF_CF70%_Section19.9.9.xls (0.9MB)
  5. YFSapp results (reassessment for PoE @ 90% confidence)
    Example3_MethodC_YFS_4storyMRF_CF90%_Section19.9.9.xls (0.9MB)

 

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

Elevation and plan of the 12-story building

Wall and coupling beam cross-sections

Static pushover curve of the final design

Case study files

  1. Opensees & Matlab source files
    DesignExample4.zip (900kB)

 

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.

Elevation and plan of the 7-story building

Wall cross-section

Static pushover curve of the final design

Case study files

  1. Opensees & Matlab source files
    Example5_MatlabOpenSeesFiles.zip (8.6?B)
  2. YFSapp results (initial design for PoE @ 70% confidence)
    Example5_MethodB_YFS_7storyWall_CF70%_Section19.11.6.xls (1.1MB)
  3. YFSapp results (initial design for PoE @ 85% confidence)
    Example5_MethodB_YFS_7storyWall_CF85%_Section19.11.6.xls (1.1MB)

 

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.

Elevation and plan of the 4-story building

UPT wall cross-section and static pushover curve of the final design

Case study files

  1. Opensees & Matlab source files
    DesignExample2.zip (900kB)
  2. YFS-Tapp results (initial design for PoE @ 90% confidence)
    Example6_MethodC_YFS-T_4storyUPTWall_CF90%_Section19.12.6.xls (0.9MB)
  3. YFS-TNEapp results (initial design for PoE @ 50% confidence)
    Example6_MethodC_YFS-TNE_4storyUPTWall_CF50%_Section19.12.6.xls (0.8MB)

 

Records & Tools

Miscellaneous useful tools and records employed in the above design examples

  1. FEMA P695 far field record set
    FEMA-P695-FFset.zip (7.8MB)
  2. FEMA P-58 Fragility Curve Fit tool
    FragilityCurveFitTool.xlsx (0.02MB)
  3. Sizing RC sections for biaxial loading (ACI)
    aci.flexure.xls (0.5MB)
  4. YFSapp (A): Constant yield displacement basis, Pinching hysteresis, Hazard from site PSHA
    YFSapp.xls (0.9MB)
  5. YFSapp (B): Constant yield displacement basis, Pinching hysteresis, Hazard extrapolated from site design spectrum
    YFSapp_DesignSpectrum.xls (1.1MB)
  6. YFS-Tapp (A): Constant period basis, Pinching hysteresis, Hazard from site PSHA
    YFS-Tapp.xls (0.9MB)
  7. YFS-Tapp (B): Constant period basis, Pinching hysteresis, Hazard extrapolated from site design spectrum
    YFS-Tapp_DesignSpectrum.xls (1.1MB)
  8. YFS-TNEapp (A): Constant period basis, Nonlinear Elastic hysteresis, Hazard from site PSHA
    YFS-TNEapp.xls (0.8MB)
Image Copyright © CRC Press