Defining Structurally Acceptable Properties of High-Strength Steel Bars through Material and Column Testing

Defining Structurally Acceptable Properties of High-Strength Steel Bars through Material and Column Testing

The proposed study will explore critical material and structural behaviors at the boundaries of high-strength steel properties that can currently be achieved. Key steel properties that will be explored are: 1) the tensile-to-yield strength ratio (T/Y ratio), 2) the ultimate or uniform elongation, and 3) the low-cycle fatigue performance. Material and structural tests on concrete columns will be conducted to compare behaviors at the high and low ends of the steel properties in production. Such tests will provide much needed experimental evidence to define structurally acceptable properties for steel mills to target in production and the research community to use in structural testing.

• Grant Details

  Project

  Defining Structurally Acceptable Properties of High-Strength Steel Bars through Material and Column Testing

  Grantee

  The University of Texas at Austin

  Category

  Concrete

  Subcategory

  High-Strength Rebar

  Grant #

  05-14

  Award Amount

  $247,240

  Grant Period

  July 2014 - March 2016

  Grant Status

  Complete

  Principal Investigators

  Wassim M. Ghannoum, Ph.D.

  Industry Champions

  Mike Mota - CRSI, Ron Klemencic - MKA, Dominic Kelly - SGH, Andrew Taylor - KPFF, Loring Wyllie - Degenkolb

  CPF Allies

  American Concrete Institute Foundation (ACIF), Applied Technology Council (ATC), Concrete Reinforcing Steel Institute (CRSI)

• Resources / Downloads

  • Defining Structurally Acceptable Properties of High-Strength Steel Bars through Material and Column Testing: Part 1, Material Testing Report, 2015
  • Defining Structurally Acceptable Properties of High-Strength Steel Bars through Material and Column Testing: Part 2, Column Testing Report, 2016

• Related Research

  • 02-19 Normal- and High-Strength Continuously Wound Ties
  • 01-19 Foundation Mats with High Strength Steel Reinforcement
  • 05-18 Development of Large High-Strength Headed Reinforcing Bars
  • 03-17 Reinforced Concrete Coupling Beams with High-Strength Steel Bars
  • 02-17 Development and Splice Lengths for High-Strength Reinforcement
  • 03-16 Acceptable Elongations and Low-Cycle Fatigue Performance for High-Strength Reinforcing Bars
  • 02-16 Low-Cycle Fatigue Criteria for the Seismic Design of Concrete Structures with High Strength Reinforcing Steel
  • 01-15 Setting Bar-Bending Requirements for High-Strength Steel Bars
  • 06-14 High-Strength Steel Bars in Reinforced Concrete Walls: Influence of Mechanical Properties of Steel on Deformation Capacity
  • 04-14 Performance Characterization of Beams with High-Strength Reinforcement
  • 04-13 Assessment of Yield Stress Measurement Methods for Reinforcing Bars
  • 03-14 Development of Tentative Specification for High-Strength Steel Reinforcing Bar
  • 05-13 The Development Of A Roadmap On The Use Of High- Strength Reinforcement In Reinforced Concrete Design
  • 01-13 The Impact of High-Strength Reinforcing Steel on Current Design Practice
  • 08-11 Anchorage of High-Strength Reinforcing Bars