Laminated wood prestressed sleeve bolt joint and construction method thereof

A bolt joint and prestressing technology, which is applied in construction, building material processing, building construction, etc., can solve the problems of large section weakening, circular casing wedge effect, wood splitting along the grain, etc., and achieve the integrity of the column section , Delay wood splitting, delay the effect of splitting

Active Publication Date: 2021-08-31
TONGJI UNIV ARCHITECTURAL DESIGN INST GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this invention also has some problems in practice. For example, the design of the circular casing can improve the initial stiffness of the joint to a certain extent, but the circular casing will still produce a wedging effect, causing wood to split along the grain, etc. Brittle failure; grooves in the wooden column weaken the section greatly, and the structural form of the joint is not in line with the characteristics of the beam-column joint, which is dominated by bending moment and supplemented by shear resistance, etc.

Method used

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  • Laminated wood prestressed sleeve bolt joint and construction method thereof
  • Laminated wood prestressed sleeve bolt joint and construction method thereof
  • Laminated wood prestressed sleeve bolt joint and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A glulam prestressed casing bolt joint based on planted studs, including a wooden column 1 made of laminated glulam, a wooden beam 2 made of laminated glulam, an inner circle and an outer square casing 3, and a T-shaped steel splint 4. High-strength bolts 5, gaskets 6, nuts 7 and chemical slurry anchor bolts 8, T-shaped steel splints 4 and wooden columns 1 are connected by the stud planting method. The T-shaped steel splint 4 is connected to both sides of the wooden column 1 through the chemical slurry anchor bolt 8. The wooden column 1 is provided with a second bolt reserved hole 11 corresponding to the chemical slurry anchor bolt 8, so that the chemical slurry anchor bolt 8 passes through the T-shaped steel. The third bolt reserved hole 421 and the second bolt reserved hole 11 on the wing plate 42 of the splint 4 penetrate into the wooden column 1 and tightened. The T-shaped steel splint 4 and the wooden beam 2 are connected by an inner circle outer square casing 3 an...

Embodiment 2

[0042] A glued wood prestressed casing bolt joint based on planted studs. The wooden beam 2 is prefabricated in the factory and cuts a groove 22 and drills a quadrilateral hole 21 according to the wood processing method. The depth of the groove 22 is deeper than that of the T-shaped steel splint 4 web 41 Length is slightly longer. The inner circle outer square casing 3 is made by casting in the factory, and it should be closely combined with the quadrilateral hole 21. The side length of the casing is smaller than the hole side length, but the error is less than 0.5mm. During specific installation, the plywood glulam beam 2 is encased in the T-shaped steel splint 4 from top to bottom, and then the inner circle and the outer square casing 3 are coated with structural glue and pressed into the quadrilateral hole 21. After the structural glue has a certain strength, the The high-strength bolt 5 penetrates the inner circle outer square casing 3 and passes through the first bolt res...

Embodiment 3

[0045] A glued wood prestressed casing bolt joint based on planted studs. A bolt end receiving groove 23 is provided at the end of the connection side between the wooden beam 2 and the T-shaped steel splint 4 to ensure that the T-shaped steel splint 4 and the wooden beam 2 are connected. The end of the beam 2 can be close to the wing plate 42 of the T-shaped steel splint 4, further improving the connection strength and stability of the wooden beam 2 and the T-shaped steel splint 4, and the rest of the structure is the same as in Embodiment 1.

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PUM

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Abstract

The invention relates to a laminated wood prestressed sleeve bolt joint. The laminated wood prestressed sleeve bolt joint comprises a wooden column (1), a wooden beam (2), a sleeve (3) with a round inner part and a square outer part, a T-shaped steel clamping plate (4) and a bolt, the T-shaped steel clamping plate (4) comprises a web (41) and a wing plate (42) which are perpendicular to each other, the wing plate (42) is fixed on the side wall of the wooden column (1) through the bolt, the wooden beam (2) is connected with the web (41) through the bolt and the sleeve (3) with the round inner part and the square outer part, and the bolt is sleeved with the sleeve (3) with the round inner part and the square outer part. Compared with the prior art, the laminated wood prestressed sleeve bolt joint has the advantages of high initial rigidity, strength and ductility, convenience and effectiveness in construction, high industrialization degree and the like.

Description

technical field [0001] The invention relates to the technical field of construction engineering, in particular to a glued wood prestressed casing bolt joint and a construction method thereof. Background technique [0002] In recent years, wood structure buildings have become more and more popular due to their light weight, high strength, good processing performance, beautiful appearance and renewable properties. The mortise and tenon joints of traditional beam-column wood structures have problems such as complicated fabrication, slow construction speed, low degree of mechanization, relatively large weakening of component sections, and easy brittle failure. In order to improve the strength of joints and the degree of industrialization, steel filler bolt group connections are increasingly used in the connection of beam-column wood structures. In this joint, steel filler plates are usually placed in the slots of wooden beams and wooden columns, and Pass the bolts through the b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/26E04B1/58E04C3/12E04C3/36E04G21/00
CPCE04B1/2604E04C3/12E04C3/36E04G21/00E04B2001/2676E04B2001/2652
Inventor 马人乐何敏娟肖升辉李征
Owner TONGJI UNIV ARCHITECTURAL DESIGN INST GRP CO LTD
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