| 摘要 |
PROBLEM TO BE SOLVED: To simply and accurately measure an installation position of a foundation material to be constructed newly by eliminating variation in measurement accuracy due to ability differences of workers in a steel tower reconstruction.SOLUTION: A measuring jig 1 includes: a jig body 2; and a fitting part 3 disposed at a center of the jig body 2 and fitted so as to be horizontal to an outer-circumference top part of a main leg material 20 as a foundation material to be constructed newly. The fitting part 3 is fitted to the main leg material 20 such that a center of the jig body 2 is located at the outer-circumference top part of the main leg material 20. The measuring jig measures a distance from a main-point pile P to both ends 2a and 2b of the jig body 2 of the measuring jig 1 by a transit or the like and measures an angle θbetween the main-point pile P and both ends 2a and 2b of the jig body 2 to specify an installation position of the main leg material 20 to be constructed newly. This configuration can eliminate variation in measuring accuracy due to ability differences of workers so as to easily and accurately measure the installation position of the foundation material to be newly constructed.SELECTED DRAWING: Figure 1 |
