Steel residual deformation tester

NegotiableUpdate on 05/06

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Nature of the Manufacturer: Producers

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Overview

The residual deformation tester for steel bars is used to mechanically connect two steel bars through a cylindrical sleeve. In the uniaxial tensile test, when the deformation performance level of the joint is level one, it is required that the residual deformation u0 ≤ 0.10mm (steel bar diameter d ≤ 32mm) and u0 ≤ 0.14mm (steel bar diameter d>; 32mm）。

Product Details

Steel residual deformation testerSteel residual deformation detector Steel residual deformation tester

1、 Product Introduction

Steel residual deformation testerWhen the deformation performance level of the joint between two steel bars mechanically connected by a cylindrical sleeve is level one in uniaxial tensile testing, residual deformation is requiredu0≤0.10mm(Steel bar diameter)d≤Φ32mm)andu0≤0.14mm(Steel bar diameter)d>Φ32mm）. The residual deformation measured in actual work is generally0.030mmroom0.080mmBetween them, the residual deformation is very small. The residual deformation tester for steel bars can only obtain accurate data by measuring with double-sided extensometers. Only by using elastic connections (such as springs and rubber bands) between the double-sided extensometer and the steel reinforcement can the measured data be reliable. Multiple experiments have shown that although mechanical rigid connections are convenient to connect, the measurement data has a large error, which is greater than1%Poor repeatability, unreliable data, and cannot pass metrological verification. meet the standardJGJ107-2010The technical specifications for mechanical connection of steel bars stipulate the requirements.