FRP-rebar-bamboo laminated wood combined box girder

Abstract

The invention provides an FRP-rebar-bamboo laminated wood combined box girder, which comprises a top flange (1), a bottom flange (2), side webs (3), a middle web (4), rebar (5) and FRP (6), wherein the side webs (3) are arranged at two sides of the top flange (1) and the bottom flange (2), and used for bearing shearing strength; the middle web (4) is in mortise joint with the top flange (1) and the bottom flange (2) and is bounded by an adhesive, and is used for bearing shearing strength; the top flange (1) is located at the upper part of the box girder, and is used for bearing pressure stress; the bottom flange (2) is located at the lower part of the box girder, and is used for bearing tensile stress; the rebar (5) is wrapped in the bottom flange (2), the FRP (6) is pasted at the bottom of the bottom flange (2), and the rebar (5) and the FRP (6) are used for bearing tensile stress. An anticorrosive coating is sprayed on the surface of the box girder, and is used for bearing the function of moistureproofing and corrosion prevention. The FRP-rebar-bamboo laminated wood combined box girder solves the difficult problems that the original bamboo beam is low in bearing capacity, small in rigidity and difficult in material selection, and can be applied to flexural members in a bamboo structural building.

Description

technical field [0001] The invention relates to a FRP-steel bar-bamboo glulam composite box girder component, especially a composite beam component of bamboo and other materials, belonging to the field of civil and architectural structures. Background technique [0002] In order to reduce the dependence on clay, steel and cement, energy-saving, environmentally friendly and renewable green building materials are increasingly favored by people. my country has extremely rich bamboo resources. Compared with wood, bamboo has the advantages of high strength, fast growth, easy processing and good toughness. It can replace ordinary broad-leaved wood and coniferous wood. It is also in line with the theme of developing and utilizing agricultural and forestry biomass resources determined by "Made in China 2025". [0003] Original bamboo structure buildings have the characteristics of good seismic performance and small load on the environment, and are widely used in western my country. ...

AI Technical Summary

Problems solved by technology

[0005] The object to be solved by the present invention is to overcome the shortcomings of the existing original bamboo beams such as low bearing capacity, poor ductility and poor deformation performance, and to provide a FRP-steel bar-bamboo integration with good mechanical properties, low cost, simple structure, energy saving and environmental protection Wood composite box girders are used to replace the original bamboo beams, and can be used as floor beams and roof beams in bamboo structure buildings and bamboo-wood composite structures

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