Structural Behavior of Prestressed Concrete Bridge Girder with Epoxy Joint
Structural Behavior of Prestressed Concrete Bridge Girder with Epoxy Joint
Author(s): Assylkhan Jalairov, Dauren Kumar, Khaini-Kamal Kassymkanova, Zeynep Sarsembekova, Gulzhan Nuruldaeva, Gulnar JangulovaSubject(s): Architecture, Transport / Logistics
Published by: Žilinská univerzita v Žilině
Keywords: composite bridge beam; outer or end segment; middle segment; tests; stiffness; crack resistance; strength;
Summary/Abstract: The study object is a prototype of a composite bridge prestressed concrete beam with a length of 42.0 m for road bridge desks for perception of impact from motor vehicles in the form of A14, NK-120 and NK-180 loads. The experimental deflection of the beam in the midspan had a value equal to f exp = 62.4 mm at a load of 2Pк = 436 kN, which was 75.2% of the control deflection value. Based on the test results, the girder block joints with "tooth" and "notch" device are found to be imperfect. The experimental load of 2PMAX = 822.7 kN was achieved during the tests, which exceeded the control load equal to 2Pк = 744 kN when checking the strength of the composite beam and the control load equal to 2Pк = 790 kN when checking the strength of No. 1 and No. 2 joints.
Journal: Komunikácie - vedecké listy Žilinskej univerzity v Žiline
- Issue Year: 24/2022
- Issue No: 2
- Page Range: 59-71
- Page Count: 13
- Language: English