### Features of monolithic beam floor operation under load

Pages 50-57

The article deals with a monolithic floor in the form of a solid slab with intercolumn beams arranged in two directions, with cell dimensions 5,7×8,0 m. The article presents a constructive solution: floor slab having a thickness (h) 200 mm is based on contour beam cross-section with the dimensions of 300×500 (b×h) mm. The reinforcement of structural elements of a slab is shown.The results of simplified floor slab calculation in the elastic stage and by limit equilibrium method are presented. The simplification of the floor calculation due to the separate calculation of beams (the main supporting structure of the floor) and slabs, supported by a system of beams, is offered. It is considered that slabs are firmly fastened on four sides with no displacement of supports.Also the results of computer calculation of monolithic beam floors are presented, which take into account the operation of structural elements of the floor. In the process of computer calculation of monolithic beam floor the slab was modeled by plate members and floor beams — by axial elements.The author gives a comparative analysis of the results of simplified calculations and computer calculations of a monolithic beam floor made on the basis of the final stress distribution in the slab. Special features of a monolithic beam slab under the load depend on the parameters of stiffness of contour floor beams.

DOI: 10.22227/1997-0935.2013.11.50-57

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