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Detecting equipment and detecting method for metal ceiling system strength

A detection equipment, metal technology, applied in elastic testing, testing of machine/structural components, using stable tension/pressure to test the strength of materials, etc., can solve problems such as system vibration, damage, deformation, etc., to achieve more detection methods Scientific and complete, reliable test results

Active Publication Date: 2009-07-29
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] Embodiment one is to carry out static load and dynamic load test to the C300 specification strip of a certain manufacturer, the specific method steps are as follows:

[0075] (1) Install and debug the sample.

[0076] Install the sample template 18 on the keel 17, install the keel 17 on the mounting frame on the upper part of the testing equipment sample vehicle 1 according to the installation method provided by the manufacturer, and push the sample vehicle 1 so that the sample template 18 is located at the working position of the testing equipment. Fix the mounting frame on the upper part of the test port 211 of system 2; use the hand wheel 13 on the mounting frame to lower the sample plate 18, make the sample sample plate 18 stick to the elastic sealing strip 212 of the test port 211, and ensure that the system under test is not deformed ; Select three measuring points according to the actual shape of the suspended ceiling, and install a displacement sensor 23 on each...

Embodiment 2

[0084] Embodiment 2 is to carry out static load and dynamic load tests on a 600×800 square plate of a certain manufacturer. Concrete method step is with embodiment one, and its test result sees Figure 8 ~ Figure 11 .

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

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

Embodiment 3

[0087] The third embodiment is to carry out the dynamic load failure test on the 600×600 square plate of a certain manufacturer, the specific method is the same as the first embodiment, and the wind pressure is applied until the sample model is damaged.

[0088] The test results show that when the test sample 600×600 square plate is under the dynamic wind pressure load of 16m / s, the ceiling plate has already fallen off from the keel, 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 detection method and detection equipment for the strength of a metal ceiling system, in particular to a detection method and detection equipment for the strength of a metal suspension ceiling system under static pressure load and wind pressure dynamic load. The detection equipment includes a sample vehicle, a working system and an operation control system. By simulating the actual environment of the metal ceiling during its service, the system strength of the metal ceiling can be detected and characterized, because this method can truly reflect the performance of the metal ceiling. The actual environment makes the detection method more scientific and complete, and the detection results are more credible, which will be implemented as an industry detection standard.

Description

technical field [0001] The invention relates to a detection method and detection equipment for the strength of a metal ceiling system, in particular to a detection method and detection equipment for the strength of a metal suspension ceiling system under static pressure load and wind pressure dynamic load. Background technique [0002] At present, the detection of the strength of the metal ceiling system in domestic and foreign standards is usually to load a 1m square rigid plate on the installed metal ceiling, and then load 160N weights evenly on it, so that the metal ceiling is subjected to a uniform 160N / m 2 The load is measured by a micrometer, and then the load is removed, 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 materials under static pressure loads, and even with static pressure loads, it is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/12G01M19/00G01M5/00G01M99/00
Inventor 蒋荃张祖民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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