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Identification of pre-operation stresses and deformation of steel beams-ribsof composite floors Выявление доэксплуатационных напряжений и деформации стальных балок-ребер сталежелезобетонного перекрытия
Steel rib-reinforced beams are frequently used in the reconstruction of architectural monuments as a replacement for timber slabs. Insufficient amount of information about the stress-strain state of composite steel and concrete slabs limits their use in the domestic construction practice. The author describes the composition and geometric parameters of the structural solution. The author provides illustrations representing the reinforcement slab and anchors needed to track the behavior of composite concrete floors, the photographs featuring the voltage sensors attached to the shelves and the wall of a steel beam, the instrument used to measure the relative strain in the bottom of the beam. The technique employed by the author is used to track the dynamics of strains in the fiber discs, steel beams, and development of deflections. The author also describes the nature of stress on the top of the beam section. The experimental research has confirmed the assumption that the concrete setting time influences the stress-strain state of the steel beams as the basic elements of composite load-bearing floors. The author also provides the findings of the pilot studies.
Приведены результаты экспериментальных исследований сталежелезобетонного перекрытия в период возведения. Выявлены закономерности развития напряжений по высоте сечения стальных балок, играющих роль ребер сталежелезобетонного перекрытия. Получены данные о характере изменения напряжений и прогибов в стальной балке в период твердения бетона железобетонной полки перекрытия.
Identification of pre-operation stresses and deformation of steel beams-ribsof composite floors Выявление доэксплуатационных напряжений и деформации стальных балок-ребер сталежелезобетонного перекрытия
Steel rib-reinforced beams are frequently used in the reconstruction of architectural monuments as a replacement for timber slabs. Insufficient amount of information about the stress-strain state of composite steel and concrete slabs limits their use in the domestic construction practice. The author describes the composition and geometric parameters of the structural solution. The author provides illustrations representing the reinforcement slab and anchors needed to track the behavior of composite concrete floors, the photographs featuring the voltage sensors attached to the shelves and the wall of a steel beam, the instrument used to measure the relative strain in the bottom of the beam. The technique employed by the author is used to track the dynamics of strains in the fiber discs, steel beams, and development of deflections. The author also describes the nature of stress on the top of the beam section. The experimental research has confirmed the assumption that the concrete setting time influences the stress-strain state of the steel beams as the basic elements of composite load-bearing floors. The author also provides the findings of the pilot studies.
Приведены результаты экспериментальных исследований сталежелезобетонного перекрытия в период возведения. Выявлены закономерности развития напряжений по высоте сечения стальных балок, играющих роль ребер сталежелезобетонного перекрытия. Получены данные о характере изменения напряжений и прогибов в стальной балке в период твердения бетона железобетонной полки перекрытия.
Identification of pre-operation stresses and deformation of steel beams-ribsof composite floors Выявление доэксплуатационных напряжений и деформации стальных балок-ребер сталежелезобетонного перекрытия
Zamaliev Farit Sakhapovich (author)
2013
Article (Journal)
Electronic Resource
Unknown
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