Flexural Behavior of Prestressed Concrete Composite Tee-beamsU.S. National Bureau of Standards, 1970 - 12 pages Prestressed Tee-beams constructed by the split-beam method were tested to failure in flexure to study the behavior and ultimate strength of these beams and to compare their flexural characteristics with those of prestressed beams of conventional construction. Results showed that composite split-beams behaved similarly to the monolithically constructed beams on the basis of flexural response and ultimate load. |
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Page 3
... was placed between standard chuck type strand grips and the anchoring column at the end opposite to the jacking end to reflect the prestressing force in the strands . Stirrups were fabricated from mild steel No. 3 reinforcing bars. 3.
... was placed between standard chuck type strand grips and the anchoring column at the end opposite to the jacking end to reflect the prestressing force in the strands . Stirrups were fabricated from mild steel No. 3 reinforcing bars. 3.
Page 4
... types of steel were used as prestressing tendons . The stress - strain curves for the steels are shown in figure 5. For the post - tensioned beams , high strength heat - treated , stress - relieved bars were used . Tensile tests of ...
... types of steel were used as prestressing tendons . The stress - strain curves for the steels are shown in figure 5. For the post - tensioned beams , high strength heat - treated , stress - relieved bars were used . Tensile tests of ...
Page 8
... types and sizes of tendons . SB - 3 RU - 2 SU - 12 ( c ) FIGURE 9. Typical crack patterns for beams : ( a ) Post - tensioned unbonded without stirrups ; ( b ) post - tensioned unbonded with 8 10. stirrups ; ( c ) pretensioned bonded ...
... types and sizes of tendons . SB - 3 RU - 2 SU - 12 ( c ) FIGURE 9. Typical crack patterns for beams : ( a ) Post - tensioned unbonded without stirrups ; ( b ) post - tensioned unbonded with 8 10. stirrups ; ( c ) pretensioned bonded ...
Page 9
... types of failures were of secondary con- cern in this study . In general , the beams in this inves- tigation failed in tension . Two beams , RU - 1 and RU - 2 , failed prematurely and their results are not used for comparisons in the ...
... types of failures were of secondary con- cern in this study . In general , the beams in this inves- tigation failed in tension . Two beams , RU - 1 and RU - 2 , failed prematurely and their results are not used for comparisons in the ...
Page 10
... type of steel used for the post - tensioned beams , the tendon size for the split - beam is found to be 0.30 sq in . This is a reduction of approximately 20 percent below the size for the monolithic beam . An analysis of the principal ...
... type of steel used for the post - tensioned beams , the tendon size for the split - beam is found to be 0.30 sq in . This is a reduction of approximately 20 percent below the size for the monolithic beam . An analysis of the principal ...
Common terms and phrases
25 cents 680 Tension APPLIED LOAD Applied Technology automatic data processing beams of conventional beams with bonded Behavior of Prestressed bottom fiber Building Science Series Bureau of Standards Cement and Concrete composite construction composite split-beams Composite stirrups 12"c/c compression zone compressive element compressive strength compressive stress Concrete Composite Tee-Beams Concrete Properties concrete strengths construction joint conventional composite beam crack patterns cross section curves DEPARTMENT OF COMMERCE dynamometer flange Flexural Behavior in-kips index Asfsyd Institute for Applied Interrelations Between Cement load response Load-deflection relationship measured ultimate moments monolithic beam National Bureau neutral axis overall performance Pfsu Portland Cement post-tensioned beams post-tensioned unbonded prestress parameters prestressed beams Prestressed Concrete Composite prestressing force prestressing steel prestressing tendon pretensioned beams ratio reinforced concrete strength of concrete stress block stress conditions stress-strain Stress-strain curves TENDON LOCATION tensile element Tensile tests tensioned beams U.S. DEPARTMENT U.S. Government Printing ultimate load ultimate strength yield strength