Reinforcing method for wood structure decayed tenon-and-mortise joint

A wood structure, tenon and mortise technology, applied in building construction, construction, building maintenance and other directions, to achieve good reinforcement effect, good use effect, and improve the effect of stress state

Active Publication Date: 2021-07-16
SHAANXI ACAD OF ARCHITECTONICS
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the deformation process, the stress-strain curve is not linear, resulting in the dissipation of energy
There is currently a lack of a simple and effective method of strengthening decayed mortise and tenon joints based on the properties of shape memory alloys

Method used

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  • Reinforcing method for wood structure decayed tenon-and-mortise joint
  • Reinforcing method for wood structure decayed tenon-and-mortise joint
  • Reinforcing method for wood structure decayed tenon-and-mortise joint

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Embodiment Construction

[0035] Such as Figure 1 to Figure 5 As shown, a method for reinforcing decayed mortise and tenon joints of a wooden structure of the present invention comprises the following steps:

[0036] Step 1. Determine the length of the decayed mortise and tenon area of ​​the wooden structure;

[0037] In this embodiment, in step 1, the stress wave distribution of the decayed tenon and tenon area of ​​the wooden structure obtained by tapping or micro-drilling resistance instrument is measured by using the wood stress wave measuring instrument, and then the length of the decayed tenon and tenon area of ​​the wooden structure is determined.

[0038] Step 2, determine the equivalent cross-sectional area of ​​the shape memory alloy:

[0039] When the cross-sectional area of ​​wooden beam 2 is rectangular, the net section resistance moment of wooden beam 2 According to the formula 1.2W nw f nw =W ns f ns , to calculate the equivalent cross-sectional area of ​​the shape memory alloy ...

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Abstract

The invention discloses a reinforcing method for a wood structure decayed tenon-and-mortise joint. The reinforcing method comprises the steps that 1, the length of a wood structure decayed tenon-and-mortise area is determined; 2, the equivalent sectional area of shape memory alloys is determined; 3, the number of the shape memory alloys is determined, and the positions of the shape memory alloys are marked; 4, punching is carried out according to the positions of the shape memory alloys; 5, hole cleaning is carried out; 6, glue is injected into the hole; 7, the shape memory alloys are implanted into the hole after glue injection; and 8, curing maintenance is carried out. The shape memory alloys penetrate through the whole wood structure decayed tenon-and-mortise area to reinforce the wood structure decayed tenon-and-mortise joint, meanwhile, the wood structure decayed tenon-and-mortise joint adopts the shape memory alloys to bear the external force, after the external force is removed, deformation of the wood structure decayed tenon-and-mortise joint can be completely recovered, the stress state of the wood structure decayed tenon-and-mortise joint is improved, the reinforcing method is not affected by factors such as moisture, termites, worm damage, twisted lines and cracks, construction is easy, cost is low, the reinforcing effect is good, and the appearance of an original joint is not affected.

Description

technical field [0001] The invention belongs to the technical field of reinforcement of tenon-tenon joints, and in particular relates to a method for reinforcing decayed tenon-tenon joints of wooden structures. Background technique [0002] Due to the influence of moisture, termites, insects, twists, cracks and other factors, the mortise and tenon joints of wooden structures are decayed and aged to varying degrees, resulting in varying degrees of reduction in the bearing capacity of the joints. In recent years, shape memory alloys have been widely used because of their special mechanical properties: a large deformation occurs when the external force is applied, and the large deformation is completely recovered after the external force is removed. However, during the deformation process, the stress-strain curve is not linear, resulting in dissipated energy. There is currently a lack of a simple and effective method for strengthening decayed mortise and tenon joints based on ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G23/02
CPCE04G23/0218
Inventor 张风亮田鹏刚边兆伟胡晓锋毛冬旭易术春冯映雪贠作义史继创成浩刘岁强
Owner SHAANXI ACAD OF ARCHITECTONICS
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