Detecting equipment and detecting method for metal ceiling system strength

A testing equipment, metal technology, applied in elastic testing, testing of machine/structural components, testing material strength using stable tension/pressure, etc., can solve problems such as system vibration, damage, deformation, etc. More scientific and complete results in letter and detection methods

Active Publication Date: 2007-08-22
CHINA TEST & CERTIFICATION INT GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

From the above analysis, it can be seen that the metal ceiling is not subjected to the pressure from the top to the bottom of the heavy object during use, but when the environment has a wind speed parallel to the plane of the metal ceiling, a certain negative pressure will be formed under this plane. At the same time, when the wind speed is high, the entire system will vibrate, causing it to deform or even be destroyed

Method used

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  • Detecting equipment and detecting method for metal ceiling system strength
  • Detecting equipment and detecting method for metal ceiling system strength
  • Detecting equipment and detecting method for metal ceiling system strength

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] The first embodiment is to carry out static load and dynamic load test on a C300 specification strip of a certain manufacturer. The specific method steps are as follows:

[0075] (1) Install and debug samples.

[0076] Install the sample sample plate 18 on the keel 17, according to the installation method provided by the manufacturer, install the keel 17 on the mounting frame on the upper part of the testing equipment sample car 1, and push the sample car 1 so that the sample sample plate 18 is in the work of the testing equipment Fix the mounting frame on the upper part of the test port 211 of the system 2; use the handwheel 13 on the mounting frame to lower the sample plate 18 so that the sample plate 18 is attached to the elastic sealing strip 212 of the test port 211 and ensure that the system under test is not deformed ; According to the actual shape of the suspended ceiling, select three measuring points, install a displacement sensor 23 on each measuring point; close...

Embodiment 2

[0084] The second embodiment is to conduct static load and dynamic load test on a square board with a size of 600×800 from a certain manufacturer. The specific method steps are the same as in Example 1, and the test results are shown in Figures 8-11.

[0085] Static load test results: show that the elastic deformation of the test sample 600×800 square plate under the static wind pressure load of 160Pa is 3.5mm (see Figure 8), ≤10mm; the plastic deformation value when the static wind pressure load is 160Pa is 0.55 mm (see Figure 9), ≤2mm, indicating that the product meets the static wind pressure load quality standards of the old similar products;

[0086] Dynamic load test result: The elastic deformation of the test sample 600×800 square plate under the dynamic wind pressure load of 16m / s is 6.8mm (see Figure 10), ≤10mm; the plastic deformation under the dynamic wind pressure load of 16m / s The variable is 0.45mm (see Figure 11), ≤2mm, indicating that the product meets the new qual...

Embodiment 3

[0087] The third embodiment is a dynamic load failure test on a square plate with a size of 600×600 from a certain manufacturer. The specific method is the same as that of the first embodiment. The wind pressure is applied until the sample plate is damaged.

[0088] The test results show that the test sample 600×600 square plate has the phenomenon that the ceiling plate has fallen off the keel when the dynamic wind pressure load is 16m / s, indicating that the product does not meet the new quality of the static wind pressure load of similar products Standard (coming soon).

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Abstract

The invention relates to a test method and device of metal ceiling system intensity, which is especially applied under static pressure load and wind pressure dynamic load. The test device is composed of a sample car, a working system and an operation controlling system. Realize test and characterization of metal ceiling system intensity by simulating practical environment of its enlistment. This method can reflect practical environment of metal ceiling really, which guarantees more scientific and perfect test method and more credible test result. It will be extended as a professional testing criterion.

Description

Technical field [0001] The invention relates to a method and equipment for detecting the strength of a metal ceiling system, in particular to a method and equipment for detecting the strength of a metal ceiling system under static pressure load and wind pressure dynamic load. Background technique [0002] At present, in the domestic and foreign standards, the test of the strength of the metal ceiling system is usually to load a 1m square rigid plate on the installed metal ceiling, and then load a 160N weight uniformly on it, so that the metal ceiling is subjected to a uniformly distributed 160N / m 2 Use a centimeter to measure the elastic deformation, then remove the load, and the residual deformation after 60s is regarded as the plastic deformation. This method is far from simulating the real environment and practical application. It can only reflect the deformation and failure form of the material under static pressure load, and it is difficult to achieve uniform load even if i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/12G01M19/00G01M5/00G01M99/00
Inventor 蒋荃张祖明刘婷婷徐晓鹏刘玉军朱生高刘翼
Owner CHINA TEST & CERTIFICATION INT GRP CO LTD
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