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Method and device for simply and conveniently detecting strength of building steel

A technology of strength and construction, applied in the field of detection, can solve the problems of steel not being detected in time, delaying the construction period, etc., and achieve the effect of improving detection efficiency and construction efficiency

Inactive Publication Date: 2016-05-18
GUIZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] In places such as construction sites, a large amount of steel materials such as various steel bars, steel plates and section steels are usually used, and these steel materials usually have to be tested for their mechanical properties before they can be used, but because there are no ready-made experimental testing equipment on the construction site , so the on-site steel to be inspected cannot be detected in time, resulting in a delay in the construction period

Method used

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  • Method and device for simply and conveniently detecting strength of building steel

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Embodiment Construction

[0012] Embodiment of the present invention: a simple method for detecting the strength of building steel, the detection of the critical index is carried out on the standard sample with known strength qualified, the standard sample is placed horizontally and horizontally, the two ends are fixed, and the load is applied from the middle to determine The standard deflection ΔH produced when the standard sample just reaches the plastic deformation 0 and the corresponding standard load P 0 ; Place the sample to be tested horizontally and horizontally, and fix both ends, and use a wire rope to hang a standard weight in the middle of the sample to be tested. The load of the standard weight is the standard load P 0 ; Observe the deformation of the sample to be tested: 1) If the sample to be tested is under the standard load P 0 No plastic deformation occurs, and the measured deflection ΔH is not greater than ΔH 0 , indicating that the strength of the sample to be tested is qualified;...

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Abstract

The invention discloses a method and a device for simply and conveniently detecting strength of building steel. The method comprises steps as follows: a standard sample with qualified known strength is subjected to critical index detection on the detection device provided by the invention, and standard deflection and standard load are determined; a to-be-detected sample is detected with the same method according to the standard load, and whether the strength of the to-be-detected sample is qualified can be rapidly judged through observation of the deformation condition of the to-be-detected sample and a relationship of to-be-detected deflection and the standard deflection. According to the mode, conclusion determination can be realized without quantization of a detection result, the detection efficiency and the constriction efficiency of the steel in the site are greatly improved, and the detection method is fast, effective, economic and applicable.

Description

technical field [0001] The invention relates to the technical field of detection, in particular to a method for simply detecting the strength of building steel. Background technique [0002] In construction sites and other places, a large amount of steel materials such as various steel bars, steel plates and section steels are usually used, and these steel materials usually have to be tested for their mechanical properties before they can be used, but because there are no ready-made experimental testing equipment on the construction site , so the on-site steel to be inspected cannot be detected in time, resulting in a delay in the construction period. [0003] The strength of construction steel refers to the ability of the material to resist fracture under the action of external force. The strength of construction steel is an important index that must be measured in use. Contents of the invention [0004] The purpose of the present invention is to provide a method for eas...

Claims

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Application Information

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IPC IPC(8): G01N3/14
CPCG01N3/14
Inventor 孙捷张攀黄碧芳先衍朱绍严袁春
Owner GUIZHOU UNIV
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