High-Strength Steel Bars in Reinforced Concrete Walls: Influence of Mechanical Properties of Steel on Deformation Capacity

High-Strength Steel Bars in Reinforced Concrete Walls: Influence of Mechanical Properties of Steel on Deformation Capacity

A study of the effects of uniform elongation and ft/fy on the deformation capacity of unsymmetrical walls has been identified by members of ATC 115 as a high-priority item. Results from this study will provide a basis for defining acceptable mechanical properties in specifications of high-strength steel reinforcing bars. Because of their geometry, tests of flanged walls are critical for evaluating the reinforcement strain capacity needed to ensure that earthquake-resistant structures have acceptable drift capacity. The primary aim of this study is to determine the minimum uniform elongation required of high-strength reinforcing bars used in seismic applications. The study will also examine whether ft/fy impacts the required minimum uniform elongation by altering the spread of plasticity in the vicinity of the wall-yielding region.

• Grant Details

  Project

  High-Strength Steel Bars in Reinforced Concrete Walls: Influence of Mechanical Properties of Steel on Deformation Capacity

  Grantee

  University of Kansas

  Category

  Concrete

  Subcategory

  High-Strength Rebar

  Grant #

  06-14

  Award Amount

  $112,000

  Grant Period

  December 2014 - December 2016

  Grant Status

  Complete

  Principal Investigators

  Andres Lepage, Ph.D.

  Industry Champions

  Ramon Gilsanz - Gilsanz Murray Steficek, Dave Fields - MKA, Dominic Kelly - SGH, Conrad Paulson - WJE

  CPF Allies

  American Concrete Institute Foundation (ACIF), Concrete Reinforcing Steel Institute (CRSI)

• Resources / Downloads

  • High-Strength Steel Bars in Earthquake Resistant T-Shaped Concrete Walls, 2018

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