Tests of a Precast Post-tensioned Composite Bridge Girder Having Two Spans of 124 Feet PDF Download
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Author: A. I. Fadl
Publisher:
ISBN:
Category : Concrete beams
Languages : en
Pages : 184
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Book Description
Author: A. I. Fadl
Publisher:
ISBN:
Category : Concrete beams
Languages : en
Pages : 184
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Book Description
Author: William Leo Gamble
Publisher:
ISBN:
Category : Concrete bridges
Languages : en
Pages : 280
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Book Description
Tests of two prestressed concrete composite bridge girders which were continuous over two spans are reported. Both were I-section girders with cast-in-place decks, and had spans of about 37 ft (11 m), and were approximately 1/3 scale models of structures spanning 125 ft (38 m). Each girder was constructed from three segments which were joined end-to-end by cast-in-place concrete splices. Modell was post-tensioned after erection of the girders and casting of the deck and splice concrete. The two end segments, each supported on the final abutments and on temporary supports located about 1/3 of the span from the central pier, were pretensioned for their dead loads plus the deck concrete. The central segment, which was supported on the central pier of the structure plus the two temporary supports was precast reinforced concrete, plus a small amount of pre= tensioned reinforcement. Model 2 was externally similar, but was not post-tensioned. The segments were pretensioned for the final moments, and were joined by splicing reinforcing bars which extended into the splice region. Both structures were subjected to a series of loadings to the service load, design ultimate, and high over-load levels. Both had capacities which were significantly higher than the design ultimate values. The capacities were generally predictable on the basis of flexural strength calculations, and shear did not cause major problems. Joint details in Modell lead to difficulties in two tests, and this aspect of the design is discussed in detail.
Author: Edward G. Nawy
Publisher: CRC Press
ISBN: 9780849326660
Category : Technology & Engineering
Languages : en
Pages : 1256
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Book Description
This new handbook fills the need for in-depth coverage of concrete construction engineering and technology. It features discussions on what design engineers and contractors need to know about concrete materials and systems - one of the most versatile materials available. The Concrete Construction Engineering Handbook focuses on these important topics:
Author: National Cooperative Highway Research Program
Publisher: Transportation Research Board
ISBN:
Category : Roads
Languages : en
Pages : 29
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Author:
Publisher:
ISBN:
Category : Ridesharing
Languages : en
Pages : 976
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Author: William Leo Gamble
Publisher:
ISBN:
Category : Concrete bridges
Languages : en
Pages : 96
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Author:
Publisher:
ISBN:
Category : Electromagnetic waves
Languages : en
Pages : 890
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Author: United States. Department of Transportation
Publisher:
ISBN:
Category :
Languages : en
Pages : 504
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Author:
Publisher: Transportation Research Board National Research
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 56
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Author:
Publisher:
ISBN:
Category : Computer programming
Languages : en
Pages : 628
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Book Description
