Fatigue Performance of High-Strength Reinforcing Steel

AbstractAn evaluation of concrete reinforcing bar fatigue provisions of AASHTO LRFD Bridge Design Specifications as they pertain to the use of high-strength reinforcing steel is presented. Two large-scale proof tests and a review of available published data demonstrate that presently accepted values for the fatigue or endurance limit for reinforcing steel are applicable, and likely conservative, when applied to higher-strength bars. A minor revision to the AASHTO specification is proposed to eliminate the fatigue penalty resulting from the use of higher-strength reinforcing steel. Finally, it is shown that fatigue considerations will rarely affect the design of typical reinforced-concrete members having a specified yield strength, fy≤690  MPa.

[1]  K. Harries,et al.  Deterioration of FRP-to-Concrete Bond under Failure Loading , 2006 .

[2]  Barrington deV. Batchelor,et al.  AN INVESTIGATION OF THE FATIGUE STRENGTH OF DECK SLABS OF COMPOSITE STEEL/CONCRETE BRIDGES , 1978 .

[3]  George C. Lee,et al.  Mechanical and low-cycle fatigue behavior of stainless reinforcing steel for earthquake engineering applications , 2010 .

[4]  D. Moss.  BENDING FATIGUE OF HIGH-YIELD REINFORCING BARS IN CONCRETE , 1982 .

[5]  Bahram M. Shahrooz,et al.  Design of Concrete Structures Using High-Strength Steel Reinforcement , 2011 .

[6]  Hajime Okamura,et al.  FUNDAMENTAL STUDY ON FATIGUE BEHAVIOUR OF REINFORCED CONCRETE BEAMS USING HIGH STRENGTH DEFORMED BARS , 1965 .

[7]  James G. MacGregor,et al.  Fatigue Strength of Hot Rolled Deformed Reinforcing Bars , 1971 .

[8]  Jay A. Puckett,et al.  Design of Highway Bridges: An LRFD Approach , 2013 .

[9]  Amir Soltani,et al.  BOND AND SERVICEABILITY CHARACTERIZATION OF CONCRETE REINFORCED WITH HIGH STRENGTH STEEL , 2011 .

[10]  E Hognestad,et al.  High strength bars as concrete reinforcement, part 6: fatigue tests , 1964 .

[11]  N H Burns,et al.  Behaviour of Ontario type bridge decks on steel girders , 1988 .

[12]  D S Moss.  AXIAL FATIGUE OF HIGH YIELD REINFORCING BARS IN AIR , 1980 .

[13]  G P Mallett,et al.  Fatigue of reinforced concrete , 1991 .

[14]  Jay A. Puckett,et al.  Design of Highway Bridges , 2006 .

[15]  L. L. Dodd,et al.  Variables Affecting Cyclic Behavior of Reinforcing Steel , 1994 .

[16]  J M Hanson,et al.  Design of Reinforced Concrete for Fatigue , 1978 .

[17]  J M Hanson,et al.  FATIGUE STRENGTH OF HIGH-YIELD REINFORCING BARS , 1971 .

[18]  A. Neville.  Properties of Concrete , 1968 .