Post-Tensioned Cast-in-Place Concrete Walls for Seismic Resistance

Post-Tensioned Cast-in-Place Concrete Walls for Seismic Resistance

The purpose of the research project is to attain test data to confirm and codify a design protocol for a new type of cast-in-place concrete shear wall system that incorporates vertical post-tensioned tendons. The primary research product will be a complete Design Guide ready to be employed on actual commercial building construction projects in all seismic zones. The defining feature of the hybrid wall system is the rocking/flexural response and self-centering capability provided by un-bonded vertical post-tensioned tendons coupled with the energy dissipation provided by the reinforcing bars. The new system has the potential to significantly reduce the cost of building seismically safe concrete structures using currently available construction methods and materials. Structural engineers will employ the final work product to design buildings for the ultimate benefit of the general public.

• Grant Details

  Project

  Post-Tensioned Cast-in-Place Concrete Walls for Seismic Resistance

  Grantee

  Lehigh University

  Category

  Concrete

  Subcategory

  Miscellaneous

  Grant #

  03-10

  Award Amount

  $387,000

  Grant Period

  December 2010 - January 2013

  Grant Status

  Complete

  Principal Investigators

  Professors Steve Pessiki & Richard Sause

  Industry Champions

  Steven Tipping, Principal, Tipping Mar + Associates, Berkeley, CA

• Resources / Downloads

  • Analytical Lateral Load Response of Unbonded Post-tensioned Cast-in-Place Concrete Special Structural Walls with Bonded or Debonded Longitudinal Mild Steel Reinforcement, 2013
  • Compression Behavior, Strength, and Ductility of Confined Concrete After Inelastic Tensile Cyclic Loading, 2013
  • Experimental Laboratory Procedures for the Construction and Testing of Seismic Resistant Unbonded Post-Tensioned Special Reinforced Concrete Walls, 2013
  • Experimental Testing of Cast-In-Place Seismic Resistant Unbonded Post-Tensioned Special Reinforced Concrete Walls, 2014

• Related Research

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  • 06-17 FEMA P695 Study - "Enhanced Ductility" RC Coupled Wall Systems
  • 06-16 Seismic and Wind Behavior and Design of Coupled CF-CPSW Core Walls for Steel Buildings
  • 02-16 Low-Cycle Fatigue Criteria for the Seismic Design of Concrete Structures with High Strength Reinforcing Steel
  • 02-14 Linking Concrete Tensile Performance and Seismic Response of Fiber Reinforced Concrete Coupling Beam
  • 01-16 Update To Performance-Based Seismic Design Guidelines for Tall Buildings
  • 07-11 Effect of Shear Stud Layout on the Seismic Behavior of Slab-Column Connections
  • 02-11 Precast Concrete Cladding Subsystems - Detailing for Regions of High Seismicity
  • 02-10 Beam Hoop Reinforcement for Large Beams in Special Moment Resisting Frames
  • 03-09 Performance-Based Seismic Design of Concrete Walls
  • 03-08 Hybrid Precast Wall Systems for Seismic Regions
  • 08-07 Development and Design of Untopped Precast Concrete Diaphragm Systems for High Seismic Zones (Extension)
  • 03-07 Guidelines to Performance-Based Seismic Design of Tall Buildings
  • 11-06 Design Procedure for Thin Shear Walls in High Seismic Zones
  • 02-06 Development and Design of Untopped Precast Concrete Diaphragm Systems for High Seismic Zones