Bending resistance of foam concrete beams reinforced with composite fittings

Автор: Slavcheva Galina Stanislavovna, Kotova Kristina Sergeevna

Журнал: Строительство уникальных зданий и сооружений @unistroy

Статья в выпуске: 5 (90), 2020 года.

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The possibility of using glass composite fittings in bent elements made of foam concrete to determine the rational practical foam concrete application and options for their reinforcement in building structurehas paper considered.Singlebeams,made of cement foam concreteandreinforced with various reinforcement framesof glass composite fittings, were investigated as flexuralelements.Beams reinforced with welded framesare accepted asbasecomparison.The beam tests were carried out according toregulatory requirements with registration of load values and deformations and deflections during the test.Beam deflections were measured until the beam carryingcapacity was exhausted.As a result, the ultimate load values and deflections of foam concretebeamswere determined. According to the test results,the nature ofthe destructionofbeams reinforced by various reinforcement framesand diagramsof deflection dependency on the bending moments are presented.It has been established thatthevalues of beams deflections reinforced with glass composite fittingsare 8.5%higher than the valuesof beamsdeflectionsreinforced with welded frames.However, the deflection values of beams with standard framework from glass composite fittings do not exceed the maximum permissible deflection value of 9,75 mm.Therefore,the glass composite fittingscan be adopted to reinforce the foam concrete flexuralelements.

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Foam concrete, beams, composite fittings, joint work, deflection, bending resistance

Короткий адрес: https://sciup.org/143172546

IDR: 143172546   |   DOI: 10.18720/CUBS.90.6

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