Application:
YYU-5/80-260mm special extensometer for steel bar joints is designed in accordance with the technical requirements of "JGJ 107 2010 Technical Specifications for Technical Connection of Steel Bars". It is a two-way average extensometer specially used to test the residual deformation of steel bar joints. Adjust according to the steel bar diameter requirement.
It fully complies with the technical requirements of "JGJ 107 2010 Technical Regulations for Reinforcement Connection".
Parameter:
Deformation measurement gauge length: L1=L+4d
In the formula:
L1——deformation measurement gauge length;
L — length of mechanical joint;
One technical index:
1 gauge length: