Unlock instant, AI-driven research and patent intelligence for your innovation.

U-shaped frame for deflection test of bending test of wood structure beam

A technology of bending test and wooden structure, which is applied in the direction of mechanical solid deformation measurement, etc., can solve the problems that the size, specification, structure, material, and deflection test of the deflection device are not specified in detail, and achieve uniform distribution of measuring points, simple structure, The effect of easy operation

Inactive Publication Date: 2012-07-11
TIANJIN UNIV
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Although the standard stipulates that the U-shaped device is used to measure the deflection, it does not specifically specify the size, specification, structure, and material of the deflection device, and there is no finalized product on the market, which makes it inconvenient to test the deflection in the wood structure experiment.

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
  • U-shaped frame for deflection test of bending test of wood structure beam
  • U-shaped frame for deflection test of bending test of wood structure beam

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The U-frame used for measuring the deflection in the bending test of the wooden structure beam of the present invention is made of a light metal section bar by adopting a conventional production preparation process.

[0020] The present invention can adopt aluminum alloy, iron alloy, copper alloy, also can adopt angle aluminum, angle steel, angle iron or section bar with suitable cross-section shape as manufacturing material, in order to arrange dial indicator in the middle position of U-shaped frame conveniently.

[0021] see figure 1 , the present invention is provided with a concave trapezoidal structure along the middle position of the length direction of the U-shaped frame, and a positioning hole is respectively arranged at both ends of the U-shaped frame, and the aperture of the positioning hole is 1 mm to 20 mm, and the positioning hole reaches the U-shaped frame. The distance from the end is L1, the distance from the positioning hole to the first turning point o...

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 discloses a U-shaped frame for a deflection test of a bending test of a wood structural beam. The U-shaped frame is characterized in that a downward-concave trapezoid structure is arranged at the middle along the length direction of the U-shaped frame; two positioning holes are formed in two ends of the U-shaped frame; and the total length of the U-shaped frame is 300-12000mm. The U-shaped frame has the advantages of simple structure, convenience for operation, uniformity and standard in distribution of measuring points and accuracy and stability in data determination; and the U-shaped frame is made of light metal section and the aims of simplifying operation procedures of the test and realizing convenience, quickness, standard and accuracy are achieved.

Description

technical field [0001] The invention relates to a test device of a wooden structure, in particular to a U-shaped frame used for testing the deflection of a wooden structure beam in a bending test. Background technique [0002] In "Standards for Test Methods of Wooden Structures" GB / T50329-2002, the deflection test device for bending test of wooden structure beams is stipulated as follows: [0003] 4.3.4 The device for testing deflection shall meet the following conditions: [0004] 1 When the test beam deflects under load, a U-shaped deflection test device can be used. The U-shaped device should meet the requirements of light weight and sufficient rigidity, and can be made of light metal (such as aluminum). The two ends of the U-shaped device should be nailed to the neutral axis of the beam, and a dial indicator is installed in the center of the device to measure the deflection of the neutral axis of the beam. [0005] 2 When the span of the beam is very large, the deflec...

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): G01B5/30
Inventor 刘劲松阎春霞李志国张磊
Owner TIANJIN UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com