NEGATIVE MOMENT BEHAVIOR OF COMPOSITE BEAMS
COMPOSITE BEAM TESTS, WERE CONDUCTED TO: (1) INVESTIGATE THE EFFECT OF THE AMOUNT OF LONGITUDINAL STEEL IN THE SLAB OF A COMPOSITE BEAM WHEN SUBJECTED TO NEGATIVE BENDING MOMENT CONDITIONS, AND (2) DETERMINE WHETHER OR NOT IT IS POSSIBLE TO SIMULATE THE NEGATIVE MOMENT REGION OF CONTINUOUS COMPOSITE BEAMS BY USING SIMPLE BEAMS WHICH DUPLICATE THE SECTION PROPERTIES OF THE PROPOSED NEGATIVE MOMENT REGION. STATIC TESTS TO FAILURE WERE MADE ON 21 WF 62 BEAMS COMPOSITE WITH A 6 X 60 FT. REINFORCED CONCRETE SLAB. BASED ON THE TESTS DESCRIBED, THE FOLLOWING WAS CONCLUDED: (1) THE TENSILE CAPACITY OF THE LONGITUDINAL STEEL REINFORCEMENT OF THE SLAB SHOULD BE LARGER THAN THE TENSILE CAPACITY OF THE CONCRETE ALONE, (2) SIMPLE SPAN BEAMS LOADED UNDER NEGATIVE MOMENT CONDITIONS ARE SUITABLE TO STUDY THE NEGATIVE MOMENT REGION OF CONTINUOUS COMPOSITE BEAMS, AND (3) AN ACCURATE THEORY IS REQUIRED TO PREDICT THE STRESSES IN CONTINUOUS COMPOSITE BEAMS IN WHICH THERE ARE NO SHEAR CONNECTORS IN THE NEGATIVE MOMENT REGION. /AUTHOR/
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Corporate Authors:
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC United States 20590Lehigh University
Bethlehem, PA United States 18015Pennsylvania Department of Transportation
1215 Transportation and Safety Building
Harrisburg, PA United States 17120 -
Authors:
- GARCIA, I
- Daniels, J H
- Publication Date: 1971-6
Subject/Index Terms
- TRT Terms: Beams; Bending moments; Composite materials; Composite structures; Continuously reinforced concrete pavements; Design; Longitudinal reinforcement; Reinforced concrete bridges; Reinforcing steel; Static tests; Stresses
- Uncontrolled Terms: Composite beams; Design criteria
- Old TRIS Terms: Continuous reinforcement
- Subject Areas: Bridges and other structures; Design; Highways;
Filing Info
- Accession Number: 00207966
- Record Type: Publication
- Source Agency: Federal Highway Administration
- Report/Paper Numbers: 68-28
- Files: TRIS, USDOT, STATEDOT
- Created Date: Oct 19 1970 12:00AM