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The Method of Strengthening Wood Frame Mortise and Tenon Joints with Steel Brackets

A steel bracket and wood frame technology, applied in the field of construction science, can solve the problems that the anti-seismic performance of wooden structures cannot be improved and the historical style is maintained, hindering the surrounding wooden components of the nodes, and affecting the use of structures during the maintenance period, so as to improve the anti-seismic performance and deformation The effect of high capacity, low cost and convenient construction

Active Publication Date: 2016-04-06
SHANGHAI RESEARCH INSTITUTE OF BUILDING SCIENCES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reinforcement methods of mortise and tenon joints include: horizontal and vertical wood reinforcement methods, carbon fiber cloth reinforcement methods, tinplate reinforcement methods, etc., but these traditional reinforcement methods have the disadvantages of affecting the use of the structure during the maintenance period, destroying the effect of the facade, and hindering the surrounding wooden components of the joints. , it is impossible to achieve the comprehensive effect of improving the seismic performance of wooden structures and maintaining historical features

Method used

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  • The Method of Strengthening Wood Frame Mortise and Tenon Joints with Steel Brackets
  • The Method of Strengthening Wood Frame Mortise and Tenon Joints with Steel Brackets

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0021] The existing wooden frame with mortise and tenon joints has a floor height of 2600mm and a span of 3600mm; the cross section of the wooden column is circular, the diameter and height are 200mm, the cross section of the wooden beam is rectangular, and the width and height are 100mm and 200mm respectively. Wooden columns and wooden beams are connected by dovetail tenon. The length of dovetail tenon is 50mm, the width of tenon head is 50mm, and the width of tenon tail is 40mm. A constant vertical load is applied to the top of the wooden column, and the vertical load of a single wooden column is taken as 20kN. Then a horizontal reciprocating load is applied by the MTS actuator at a loading rate of 0.3mm / s. After the maximum load appears, as the deformation increases, the failure load and its corresponding deformation take the corresponding load and corresponding deformation when the load drops to 85% of the maximum load. If the tenon is pulled out of the wooden frame, the ...

Embodiment 2

[0027] Now there is another wooden frame with mortise and tenon joints, the floor height is 2600mm, and the span is 5000mm; the cross section of the wooden column is circular, the diameter and height are 250mm, the cross section of the wooden beam is rectangular, and the width and height are 150mm and 250mm respectively. Wooden columns and wooden beams are connected by dovetail tenon. The length of dovetail tenon is 80mm, the width of tenon head is 80mm, and the width of tenon tail is 50mm. A constant vertical load is applied to the top of the wooden column, and the vertical load of a single wooden column is taken as 30kN. Then a horizontal reciprocating load is applied by the MTS actuator at a loading rate of 0.4 mm / s. After the maximum load appears, as the deformation increases, the failure load and its corresponding deformation take the corresponding load and corresponding deformation when the load drops to 85% of the maximum load. If the tenon is pulled out of the wooden ...

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Abstract

Disclosed is a method for reinforcing mortise and tenon joints of a wood frame through a steel support. The method comprises steel support machining and steel support mounting, the steel support is arranged on the mortise and tenon joints, the aims of improving the bending rigidity of the mortise and tenon joints and limiting openings of mortise openings are achieved, and therefore the vibration resisting performance and deformability of the wood frame with the mortise and tenon joints are obviously improved, and subsequent use requirements are met. The whole structure can be achieved only by simply improving an existing structure, the manufacturing cost is low, and construction is easy.

Description

technical field [0001] The invention belongs to the field of building science and technology, and in particular relates to a method for reinforcing wooden frame mortise and tenon joints with steel brackets, which is used for maintenance, reinforcement and transformation of wooden buildings. Background technique [0002] The use of wood to build houses is an important form of traditional architecture in my country. Many historical wooden structures have a history of hundreds of years. They are an important part of Chinese civilization and contain rich historical and cultural connotations, such as the Forbidden City, Guizhou Miao wooden buildings, etc. They are all wooden building complexes, but due to the relatively long history of construction and the characteristics of wood itself, many wooden structures are in urgent need of repair or reinforcement. Most of the historical wooden structures are wooden frame structures with mortise and tenon joints. Long-term use of wood is e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04G23/02E04B1/58
Inventor 许清风王卓琳刘琼
Owner SHANGHAI RESEARCH INSTITUTE OF BUILDING SCIENCES CO LTD