Wood structure reinforcing process based on vacuum negative-pressure method

Abstract

A wood structure reinforcement process based on the vacuum negative pressure method is to apply sealant around the area of ​​the wood structure to be reinforced, then spread glass fiber cloth, polyester release cloth and diversion vinyl mesh cloth in sequence; then lay vacuum bags , set the resin injection port and exhaust port, turn on the vacuum pump to evacuate, when the vinyl resin in the resin container is full of the vacuum bag, let the internal resin fully infiltrate the fiber, after the vinyl resin is fully cured, tear off the polyester release cloth and complete reinforcement. The invention realizes the reinforcement of the wood structure with the fiber-reinforced composite material cloth through the flow and penetration of the vinyl resin. The fiber-reinforced composite material cloth for reinforcing the wood structure by this method can control the number of fiber layers according to the needs, and can better fit the reinforcement surface , suitable for the reinforcement of complex curved wood structures, the biggest advantage is that it can be integrally formed without glue dripping, its process is simple, easy to operate, no environmental pollution, low cost, and the interface mechanical properties of the reinforced wood structure are excellent.

Description

technical field

[0001] The invention relates to a wood structure reinforcement process, in particular to a wood structure reinforcement process based on a vacuum negative pressure method. Background technique

[0002] Wooden structures have the advantages of high strength, light weight, small bulk density, easy manufacture, energy saving, environmental protection, durability and good seismic performance. Although there are fewer new wooden structures in my country than other structures, there are still a certain proportion of wood structures or brick-wood structures. Old buildings, some of these structures have great historical preservation value and need to maintain their original historical appearance. Wooden structures need to be reinforced and repaired due to corrosion and insects, improper use and maintenance, or changes in use. Traditional reinforcement methods for wooden components include methods such as adding constraints, increasing cross-sections, adding tie rods, ...

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