| 摘要 |
<P>PROBLEM TO BE SOLVED: To safely and conveniently perform construction by clamping an opposite bolt of a channel shape joint metal in which a shape steel joint is formed in a C shape, and to easily check a clamping torque, in a heavy construction joint of a heavy construction structure. <P>SOLUTION: The joint checking method in a joint metal of a heavy construction structure includes: a step of screwing a bolt 4 from the outside on at least one side of inner opposition surfaces 3, 3' of a steel material insertion channel 2 formed on a joint body 1 through the one side inner opposition surface 3 towards the other side inner opposite surface 3'; a step of disposing a receiving implement 6 opposite to the tip 5 of the bolt 4 on a common center line c on the other side inner opposite surface 3'; a step of concave-setting a female screw 9 which shares the center line c on a head part 8 of the bolt 4; and a step of screwing a male screw 4' to the female screw 9; wherein a bending washer 10 is interposed between the head part 8 and a head part 7 of the male screw 4', it is checked, by visual observation, that the bending washer 10 gets to a flat plate shape by clamping the male screw 9 and, thereby, the clamping state of insertion steel materials 11, 11 in a channel is checked. <P>COPYRIGHT: (C)2012,JPO&INPIT |
