Experimental and Analytical Evaluations of Confinement Reinforcement in Pretensioned Concrete Beams

2011 ◽  
Vol 2251 (1) ◽  
pp. 59-67 ◽  
Author(s):  
Brandon E. Ross ◽  
H. R. (Trey) Hamilton ◽  
Gary R. Consolazio
Keyword(s):  
Concrete Beams ◽  
Pretensioned Concrete ◽  
Confinement Reinforcement

High-cycle fatigue tests of pretensioned concrete beams

PCI Journal ◽  
2022 ◽  
Vol 67 (1) ◽  
Author(s):  
Jörn Remitz ◽  
Martin Empelmann
Keyword(s):  
Fatigue Life ◽  
High Cycle Fatigue ◽  
Concrete Beams ◽  
Fatigue Behavior ◽  
Fatigue Tests ◽  
Design Methods ◽  
Test Results ◽  
Cycle Fatigue ◽  
Pretensioned Concrete ◽  
Current Design

Pretensioned concrete beams are widely used as bridge girders for simply supported bridges. Understanding the fatigue behavior of such beams is very important for design and construction to prevent fatigue failure. The fatigue behavior of pretensioned concrete beams is mainly influenced by the fatigue of the prestressing strands. The evaluation of previous test results from the literature indicated a reduced fatigue life in the long-life region compared with current design methods and specifications. Therefore, nine additional high-cycle fatigue tests were conducted on pretensioned concrete beams with strand stress ranges of about 100 MPa (14.5 ksi). The test results confirmed that current design methods and specifications overestimate the fatigue life of embedded strands in pretensioned concrete beams.

Prestress losses in pretensioned concrete beams cast with lightweight self-consolidating concrete

Structures ◽  
2015 ◽  
Vol 2 ◽  
pp. 50-57 ◽  
Author(s):  
Jared C. Bymaster ◽  
Canh N. Dang ◽  
Royce W. Floyd ◽  
W. Micah Hale
Keyword(s):  
Concrete Beams ◽  
Prestress Losses ◽  
Self Consolidating Concrete ◽  
Pretensioned Concrete

Flexural behaviour of pretensioned concrete beams with limited prestress

1973 ◽  
Vol 8 (2) ◽  
pp. 179-185 ◽  
Author(s):  
N. Krishna Raju ◽  
B.S. Basavarajaiah ◽  
U.C. Ahamed Kutty
Keyword(s):  
Concrete Beams ◽  
Flexural Behaviour ◽  
Pretensioned Concrete
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