Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Shape memory alloy reinforced wood structure beam column bolt joint and manufacturing method thereof

A memory alloy and bolt joint technology, which is used in building construction, building maintenance, construction, etc., can solve the problem that the bending bearing capacity and deformation capacity are not fully utilized, the irreversible deformation cannot be reduced, and the self-resetting effect cannot be achieved. and other problems, to achieve good self-reset function, improve self-reset performance, and inhibit transverse cracking damage.

Pending Publication Date: 2019-07-09
SHANGHAI RES INST OF BUILDING SCI CO LTD
View PDF0 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Under the combined action of bending moment and shear force, bolted steel filled plate joints are prone to wood cross-grain splitting damage, and the direction of wood cross-grain in the joint area will undergo obvious unrecoverable deformation
This makes the flexural bearing capacity and deformation capacity of such joints not fully utilized, and also weakens the performance of the member under normal use
Commonly used reinforcement effects (such as self-tapping screw reinforcement method and carbon fiber cloth reinforcement method) cannot reduce the influence of unrecoverable deformation in the transverse direction of wood, and cannot achieve self-resetting effect

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Shape memory alloy reinforced wood structure beam column bolt joint and manufacturing method thereof
  • Shape memory alloy reinforced wood structure beam column bolt joint and manufacturing method thereof
  • Shape memory alloy reinforced wood structure beam column bolt joint and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0023] see Figure 1-Figure 3 , a beam-column bolt joint of a wood structure reinforced by a shape memory alloy, comprising two wood members, a wood member 1 and a wood member 2 2, the wood members are in the shape of a rectangle, and their length direction is the direction of wood grain; The reinforced part of wooden member 1 is located at the end, and the reinforced part of wooden member 2 is located at the abdomen; the reinforced part is: at least one steel filler plate groove parallel to the length direction is opened in the middle of the wooden member in the thickness direction, and the wooden member and the The corresponding position of the steel filler plate 3 is pre-drilled some bolt holes in the thickness direction, the steel filler plate 3 is inserted into the groove of the steel filler plate, and each bolt 4 is inserted into the resp...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a shape memory alloy reinforced wood structure beam column bolt joint. Wood components are rectangular, and the length direction of the wood components is the wood grain texture direction; a reinforcing part of a first wood component is located at an end, and a reinforcing part of a second wood component is located at an abdomen position. The reinforcing parts are formed through the following operation: at least one steel filling plate groove parallel to the length direction is formed in the middle of each wood components in the thickness direction, a plurality of boltholes are pre-drilled in the corresponding positions of the wood components and steel filling plates in the thickness direction, the steel filling plates are inserted into the steel filling plate grooves, and all bolts are inserted into the corresponding bolt holes; a plurality of bar holes are pre-drilled in the wood components in the height direction of the sections, the positions of the bar holes do not interfere with the bolt holes, and all memory alloy bars are inserted into the corresponding bar holes; and the first wood component and the second wood component are vertically connected through the respective reinforcing parts. According to the invention, the wood cross grain splitting damage of a bolt joint area is effectively prevented, the development of unrecoverable deformation in the wood cross grain direction of the joint area can be remarkably reduced, and the self-resetting performance of the joint is improved.

Description

technical field [0001] The invention relates to a beam-column bolt joint of a wood structure in modern wood structure reinforcement and transformation, in particular to a beam-column bolt joint of a wood structure reinforced by a shape memory alloy. Background technique [0002] With my country's vigorous promotion of green buildings and prefabricated buildings, modern wood structures have ushered in new opportunities for development. This type of structure has many advantages such as comfortable and livable, excellent seismic performance and high degree of assembly, so it has attracted much attention. Bolted steel fill plate joint is one of the commonly used member connection forms in modern wood structures, which has many advantages such as beautiful appearance, simple manufacture and convenient installation. [0003] Under the joint action of bending moment and shear force, the bolted steel filled plate joints are prone to wood cross-grain splitting damage, and the direc...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/26E04B1/58E04G23/02
CPCE04B1/26E04B1/2604E04G23/0218E04G2023/0248
Inventor 王明谦王卓琳冷予冰陈玲珠陈溪许清风
Owner SHANGHAI RES INST OF BUILDING SCI CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products