Article(electronic)January 3, 2001

Experiments with Externally Prestressed Continuous Composite Girders

In: Acta polytechnica: journal of advanced engineering, Volume 41, Issue 3

Safan, M.; Kohoutková, A.

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Abstract

Steel-concrete composite girders have attractive potentials when applied in bridge construction. The serviceability performance of continuous composite girders is becoming more and more a deterministic parameter in the design of this type of structures. An effective method for improving this performance is to apply prestressing to control or completely eliminate concrete deck cracking caused by static and time dependent actions. Little literature has been found addressing the experimental analysis of continuous girders prestressed by means of external deviated tendons. The current research aims to investigate the behavior of a double-span steel composite beam externally prestressed by means of continuous tendons in terms of cracking characteristics, load deflection response, and load carrying capacity. The efficiency of prestressing is evaluated by comparing the results to those of a non-prestressed beam with similar cross sections and spans.

Publisher

Czech Technical University in Prague - Central Library

ISSN: 1805-2363

DOI

10.14311/240

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