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钢筋残余变形测试仪

满足标准:JGJ107-2010《钢筋机械连接技术规程》(2010.10.01实施)
标定仪器:GWB-200B高精度引伸计标定器(量程0~25mm,分辨率0.0002mm)  钢铁研究总院制造

  • 型号:CBC4320

  • 产品参数
  • 型号:CBC4320


 

钢筋残余变形测试仪产品简介:

■国家标准JGJ107-2010《钢筋机械连接技术规程》规定,通过圆柱套筒机械连接的两根钢筋,在单向拉伸试验中,接头的变形性能等级是一级时要求:残余变形u0≤0.10mm(钢筋直径d≤Φ32mm)和u0≤0.14mm(钢筋直径d>Φ32mm)。实际工作中测量到的残余变形一般在0.030mm至0.080mm之间。残余变形量很小。

■钢筋残余变形测试仪只有采用双侧引伸计测量得到的数据才是A准确的;

■双侧引伸计和钢筋之间只有采用弹性连接(例如:弹簧和皮筋套),这样测量得到的数据才是A可靠的。多次实验证明:采用机械式刚性连接虽然连接方便,但是测量的数据误差大,大于1%,重复性差,数据A靠,不能通过计量检定。

First, the steel residual deformation tester product introduction:
■ National Standard JGJ107-2010 "Technical Regulations for Reinforcing Steel Connections" stipulates that two steel bars mechanically connected by a cylindrical sleeve, in the uniaxial tensile test, the deformation performance level of the joint is one level: residual deformation u0 ≤ 0.10 Mm (rebar diameter d ≤ Φ32mm) and u0 ≤ 0.14mm (rebar diameter d > Φ32mm). The residual deformation measured in actual work is generally between 0.030 mm and 0.080 mm. The amount of residual deformation is small.
■Rebar residual deformation tester is only accurate when the data measured by the double-sided extensometer is used;
■ Only the elastic connection between the double-sided extensometer and the steel bar (for example, spring and rubber sleeve) is such that the measured data is A reliable. Many experiments have proved that although the mechanical rigid connection is convenient, the measured data error is large, more than 1%, the repeatability is poor, the data A depends, and the measurement cannot be passed.

 

钢筋残余变形测试仪主要指标

■满足标准:JGJ107-2010《钢筋机械连接技术规程》(2010.10.01实施)

■标定仪器:GWB-200B高精度引伸计标定器(量程0~25mm,分辨率0.0002mm)  钢铁研究总院制造

■测量钢筋直径(mm):φ5~φ40

■测量分辨值(mm):0.001

■精度等级:1级

■数显表显示含义:

    均值:表示PV1和PV2两路的平均值

    PV1 :表示A路引伸计变形测量值

    PV2 :表示第二路引伸计变形测量值

Second, the main indicators of the residual deformation tester
■Meet the standard: JGJ107-2010 "Technical Regulations for Reinforcing Steel Connections" (implementation of 2010.10.01)
■ Calibration instrument: GWB-200B high precision extensometer calibrator (range 0 ~ 25mm, resolution 0.0002mm) Steel Research Institute manufacturing
■Measure the diameter of the steel bar (mm): φ5 to φ40
■Measurement resolution (mm): 0.001
■Accuracy level: Level 1
■Digital display shows the meaning:
     Mean: Indicates the average of both PV1 and PV2
     PV1 : indicates the deformation measurement value of the A path extensometer
     PV2: indicates the second extensometer deformation measurement value

 

钢筋残余变形测试仪主要特点

■钢筋机械连接残余变形测试仪由两只高精度可变标距引伸计,灵敏度保持一致,组成双侧引伸计,直接测量试样的两侧平均变形量,测量结果准确;

■两只引伸计测量标距可调,范围50~260mm,量程5mm或10mm;

■四位三排两输入高精度数显表,电路部分采用24位A/D高精度IC芯片设计,实时显示两只引伸计的真实变形量,数值稳定可靠;

■数显表设置简单,带有密码锁设定功能,避免误操作改动设定值;

■双侧引伸计和钢筋之间采用弹性连接(例如:弹簧和皮筋套),试样夹持方便,使用寿命长;

■本仪器由专业人员根据实际情况精心设计,结构合理,非常适合于建筑质检部门检测使用。

Third, the main characteristics of the steel residual deformation tester
■Reinforcement mechanical connection residual deformation tester consists of two high-precision variable gauge extensometers with the same sensitivity, forming a double-sided extensometer, directly measuring the average deformation of both sides of the sample, and the measurement results are accurate;
■ Two extensometers can measure the gauge length, ranging from 50 to 260mm, with a range of 5mm or 10mm;
■ Four-position three-row two-input high-precision digital display, the circuit part is designed with 24-bit A/D high-precision IC chip, real-time display of the true deformation of two extensometers, the value is stable and reliable;
■The digital display is easy to set up with the password lock setting function to avoid misuse and change the set value;
■The elastic connection between the double-sided extensometer and the steel bar (for example: spring and rubber sleeve), the sample is convenient to clamp and the service life is long;
■ This instrument is designed by professionals according to the actual situation, and the structure is reasonable, which is very suitable for the inspection and use of the building quality inspection department.

 

钢筋残余变形测试仪主要配置

■可变标距引伸计    两只;

■高精度数显表      一台;

■常用工具附件      一套;

■使用说明书        一份;

■仪器包装箱        一个(340×230×110mm)。

Fourth, the main configuration of the residual deformation tester
■Variable gauge length extensometer two;
■High-precision digital display
■A set of commonly used tools
■Instructions for use; one copy;
■ Instrument packaging box One (340 × 230 × 110mm).


钢筋残余变形测试仪

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