Prestressed composite girders i: Experimental study for negative moment

Bilal M. Ayyub, Young G. Sohn, Hamid Saadatmanesh

Research output: Contribution to journalArticle

53 Scopus citations

Abstract

Limited experimental results were reported in the literature on the behavior of prestressed composite girders subjected to negative bending moment This paper examines experimentally the behavior of prestressed composite steelconcrete girders The steel beams were all welded plate girders Five composite specimens were tested to study the various aspects of prestressed composite girders including the effects of construction stages prestressing sequence tendon type and compactness of the plate girders on their structural performance Load versus midspan deflection strains in the concrete deck and steel girder and the force increase in the prestressing tendons due to the applied loads were measured and studied The test results showed that prestressing a composite girder in the negative moment region increases its stiffness by preventing the cracking of concrete under service loads; enlarges the elastic range; and increases the ultimate capacity due to the effective use of high-strength tendons

Original languageEnglish (US)
Pages (from-to)2743-2762
Number of pages20
JournalJournal of Structural Engineering (United States)
Volume118
Issue number10
DOIs
StatePublished - Oct 1992

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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