A double girder floor structure

Abstract

The invention discloses a double beam floor structure. The double beam floor structure comprises supporting units. Every two adjacent supporting units are connected through two parallel longitudinal beams or two parallel cross beams to form a square-hole netty structure with the supporting units as nodes and the longitudinal beams and the cross beams as links. Each supporting unit comprises a groined beam, a rood beam and a supporting column, wherein the rood beam is arranged in the center of the groined beam and is connected with the cross points of the groined beam, and the supporting column is fixedly connected with the center of the rood beam. According to the double beam floor structure, the square-hole netty structure is formed through the supporting units, the longitudinal beams and the cross beams. Compared with traditional beam-slab type floor structures, primary beams and secondary beams are not distinguished in the netty structure any more, and force transfer between the beams, between the beams and floorslabs, as well as between the beams and the supporting columns is more uniform, the condition that part of the beams are not stressed uniformly and accordingly waste is caused is avoided, and the double beam floor structure has the advantages that the load-bearing effect is good, the height of the beams is decreased, and the cost is reduced.

Description

technical field [0001] The invention relates to the field of building structures, more specifically, to a supporting structure system of a floor, which is a double-beam floor structure. Background technique [0002] Currently, the structural systems used in the construction of floors mainly include ordinary beam-slab structures, beamless floor structures and hollow beamless floor structures. [0003] Ordinary beam-slab structures require main beams and more secondary beams on the main beams, so the beam heights of ordinary beam-slab structures are relatively high, and the required storey height is very high. [0004] Because there are no beams in the beamless floor structure, the load on the slab surface is directly transmitted from the slab to the column. It has the advantages of simple structure, simple force transmission path, high clearance utilization rate, and beautiful appearance. It is conducive to ventilation, easy to arrange pipelines and construction. However, th...

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Problems solved by technology

[0004] Because there are no beams in the beamless floor structure, the load on the slab surface is directly transmitted from the slab to the column. It has the advantages of simple structure, simple force transmission path, high clearance utilization rate, and beautiful appearance. It is conducive to ventilation, easy to arrange pipelines and construction. However, the beamless floor structure requires thicker slabs and higher strength concrete and steel bars. From the perspective of structural performance, the ductility of the beamless slab is poor, and the failure of the slab at the column cap or column top is a brittle shock. cut damage

[0005] The beamless hollow floor structure is an improved version of the beamless floor structure. Although it overcomes some shortcomings of the beamless floor structure, it still needs to process steel bars at the construction site, bind the steel bars, and then pour concrete on site to complete the beam and floor. Formwork and full scaffolding are required for pouring concrete, and the main components cannot be manufactured in a standardized manner in a factory

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