GB/T 3409.2-2016 in English
VALIDInstrument for dam monitoring-Rebar strain meter-Part 2:Vibrating wire rebar strain meter
- Issued on:2016-06-14
- Implemented on:2017-01-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$204.00
《GB/T 3409.2-2016大坝监测仪器 钢筋计 第2部分：振弦式钢筋计》由332（水利部）归口，主管部门为水利部。
Introduction
GB/T 3409.2-2016 Overview of the Vibrating Wire Rebar Meter Standard
The vibrating wire rebar meter is a key instrument used to measure the stress of steel bars in concrete structures. It is widely used in monitoring water conservancy projects such as dams and bridges. This standard specifies its composition, specifications, technical requirements and test methods in detail.
Comparison of standard frameworks
| Dimensions | Old version of the standard | New version of the standard | Improvement focus |
|---|---|---|---|
| Definition of vibrating wire rebar meter | Unclear | Added detailed term explanation | Term standardization |
| Technical requirements | Some indicators are missing | Fully cover performance parameters | Improved indicator system |
| Test methods | Improper operation | Detailed test steps | Enhanced operability |
Professional term analysis
Vibrating Wire Rebar Meter:A sensor that measures the stress of steel bars by using the change in the natural frequency of steel strings.
Resolution:The minimum stress change value that the instrument can detect within the full range.
For example, in a water conservancy project, if a bridge component is subjected to dynamic loads, the structural safety can be evaluated in real time by monitoring the frequency change of its
Technical requirements and test methods
Appearance:Each component is firmly connected, and there is no obvious damage on the surface.
Working environment:-20℃ to 60℃, with clear water pressure resistance.
Basic performance: includes key indicators such as resolution (≤0.2% FS) and hysteresis (≤1.0% FS).
Implementation suggestions
- Choose a standard
vibrating wire rebar meter to ensure that the performance meets the standard. - Strictly calibrate and test according to the test method.
- Strengthen equipment maintenance, especially for applications in harsh environments.
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