| 摘要 |
PROBLEM TO BE SOLVED: To provide a tensile load recording device capable of measuring the tensile load of an anchor even if any hydraulic jack is used without using an expensive load cell to record the same. SOLUTION: The tensile load recording device 1 includes a hydraulic sensor 20 used when tensile loading endurance is tested by applying force to the anchor 50 subjected to post execution in a pulling-out direction by the piston 15 of a hydraulic jack 3 driven by a hydraulic pump 2 and measuring the hydraulic P of the hydraulic pump 2 to output an electric signal, a piston data recording unit 21 for preliminarily recording the pressure receiving area S of hydraulic in the piston 15 of the hydraulic jack 3, a tensile load calculation unit 22 for calculating the tensile load of the anchor 50 on the basis of the measured hydraulic P of the hydraulic sensor 20 and the pressure receiving area S recorded on a piston data recording unit 21, a display unit 26 for displaying the tensile load calculated by the tensile load calculation unit 22 and a printer 27 for recording the tensile load. COPYRIGHT: (C)2011,JPO&INPIT
|
