FRP sheet connecting structure of prefabricated concrete beam and slab system and method

Abstract

The invention provides an FRP sheet connecting structure of a prefabricated concrete beam and slab system and a method. Peripheral side surfaces of full-thickness prefabricated slabs are adjacent to side surfaces of floor beams; an about 20 mm wide adjusting seam is formed between each prefabricated slab and each floor beam and between the prefabricated slabs and is filled with high-strength micro-expansion mortar; planar FRP sheets for anti-bending connection are attached to the top surfaces of joints of the prefabricated slabs and the floor beams and the top surfaces and the bottom surfacesof joints of the prefabricated slabs; folding surface type FRP sheets for anti-shear connection are also attached to the joints of the prefabricated slabs and the floor beams and the joints of the prefabricated slabs; and the fiber direction of the FRP sheets is perpendicular to the longitudinal direction of the joints. The problems that side forms of prefabricated parts are complicated due to thefact that ribs extend out of the periphery of existing platy prefabricated parts, the production efficiency is low, transportation and hoisting operation are difficult and the like are solved; and the problem that substantial wet operation on the scene due to stacking pouring of existing prefabricated slabs and the problem of too large thickness of the slabs are solved.

Description

technical field [0001] The invention relates to an FRP sheet connection structure and method of a prefabricated concrete beam-slab system, which belongs to construction engineering technology. Background technique [0002] In recent years, with the continuous improvement of people's requirements for living conditions and living environment, the construction industry has developed rapidly. However, the development of the construction industry has caused serious resource consumption and environmental pollution, forcing people to seek a new way out of the construction industry. At present, the industrialization of buildings characterized by prefabricated buildings is one of the key ways to achieve low-carbon and sustainable development in the construction industry. [0003] In prefabricated buildings, the connection mode between structural components has a crucial influence on the efficiency of prefabricated and assembled construction and the mechanical properties of service. ...

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Problems solved by technology

[0005] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a FRP sheet connection structure and method of precast concrete beam-slab system, which solves the low production efficiency caused by the multi-sided reinforcement of the prefabricated floor in the existing floor splicing method , Difficulties in stacking, transportation and hoisting operations, and the large wet workload caused by on-site superimposed pouring and other low construction efficiency

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