STRUCTURAL BEHAVIOR OF PRESTRESSED CONCRETE BRIDGE GIRDER WITH EPOXY JOINT
Jalairov A. Kumar D. Kassymkanova K.-K. Sarsembekova Z. Nuruldaeva G. Jangulova G.
2021University of Žilina
Communications - Scientific Letters of the University of Žilina
2021#24Issue 2D59 - D71 pp.
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 fexp = 62.4 mm at a load of 2Pκ = 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 2Pκ = 744 kN when checking the strength of the composite beam and the control load equal to 2Pκ = 790 kN when checking the strength of No. 1 and No. 2 joints.
Composite bridge beam , Crack resistance , Middle segment , Outer or end segment , Stiffness , Strength , Tests
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Department of Transport Construction Bridges and Tunnels, Kazakh University of Way Transport, Almaty, Kazakhstan
Department of Cartography and Geoinformatics, Al-Farabi Kazakh National University, Almaty, Kazakhstan
Satbayev University, Almaty, Kazakhstan
Institute of Architecture and Construction, Satbayev University, Almaty, Kazakhstan
Department of Transport Construction Bridges and Tunnels
Department of Cartography and Geoinformatics
Satbayev University
Institute of Architecture and Construction
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