A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
TENSIONING FORCE ESTIMATION METHOD FOR EXISTING ANCHOR
PROBLEM TO BE SOLVED: To provide a highly efficient method for estimating tensioning force of an existing anchor.SOLUTION: A reference anchor 30 is mounted with a load, and struck for generating a reference elastic wave, thus obtaining a dominant frequency and propagation speed of a reflected wave. Then, a correlation equation between the dominant frequency and the load, as well as a correlation equation between the dominant frequency and the propagation speed, are developed. On the other hand, an existing anchor 10 is struck for generating an elastic wave for estimation, thus obtaining the propagation speed of the reflected wave. The propagation speed is substituted into the correlation equation between the dominant frequency and the propagation speed, and the dominant frequency for estimation obtained is substituted into the correlation equation between the dominant frequency and the load. The load for estimation obtained is assumed as tensioning force of the existing anchor 10.SELECTED DRAWING: Figure 1
【課題】作業効率に優れる既設アンカーの緊張力を推定する方法とする。【解決手段】基準用アンカー３０に荷重を載荷し、打撃して基準用弾性波を発生させ、反射波の卓越周波数及び伝播速度を取得する。そして、卓越周波数と荷重との相関関係式、卓越周波数と伝播速度との相関関係式を作成する。他方、既設アンカー１０を打撃して推定用弾性波を発生させ、反射波の伝播速度を取得する。この伝播速度を卓越周波数と伝播速度との相関関係式に代入し、得られた推定用卓越周波数を卓越周波数と荷重との相関関係式に代入する。得られた推定用荷重を既設アンカー１０の緊張力と推定する。【選択図】図１
TENSIONING FORCE ESTIMATION METHOD FOR EXISTING ANCHOR
PROBLEM TO BE SOLVED: To provide a highly efficient method for estimating tensioning force of an existing anchor.SOLUTION: A reference anchor 30 is mounted with a load, and struck for generating a reference elastic wave, thus obtaining a dominant frequency and propagation speed of a reflected wave. Then, a correlation equation between the dominant frequency and the load, as well as a correlation equation between the dominant frequency and the propagation speed, are developed. On the other hand, an existing anchor 10 is struck for generating an elastic wave for estimation, thus obtaining the propagation speed of the reflected wave. The propagation speed is substituted into the correlation equation between the dominant frequency and the propagation speed, and the dominant frequency for estimation obtained is substituted into the correlation equation between the dominant frequency and the load. The load for estimation obtained is assumed as tensioning force of the existing anchor 10.SELECTED DRAWING: Figure 1
【課題】作業効率に優れる既設アンカーの緊張力を推定する方法とする。【解決手段】基準用アンカー３０に荷重を載荷し、打撃して基準用弾性波を発生させ、反射波の卓越周波数及び伝播速度を取得する。そして、卓越周波数と荷重との相関関係式、卓越周波数と伝播速度との相関関係式を作成する。他方、既設アンカー１０を打撃して推定用弾性波を発生させ、反射波の伝播速度を取得する。この伝播速度を卓越周波数と伝播速度との相関関係式に代入し、得られた推定用卓越周波数を卓越周波数と荷重との相関関係式に代入する。得られた推定用荷重を既設アンカー１０の緊張力と推定する。【選択図】図１
TENSIONING FORCE ESTIMATION METHOD FOR EXISTING ANCHOR
既設アンカーの緊張力推定方法
FUKUI KENZO (author) / TAKEMASA MANABU (author) / YAMAGUCHI KUNIHARU (author) / SAKAMOTO HIROYUKI (author) / SUZUKI KEIICHI (author) / MIKAMI SOJI (author) / MORI KENJI (author) / YOKOTA KOICHI (author) / BEPPU MASAAKI (author)
2018-03-22
Patent
Electronic Resource
Japanese
ESTIMATION METHOD OF TENSIONING FORCE OF TENDON IN GROUND ANCHOR
| European Patent Office | 2019
Multi-wire-harness anchor cable equal-force tensioning equipment and equal-force tensioning method
| European Patent Office | 2024
Pulling and pressing combined existing anchor cable compensation tensioning equipment
| European Patent Office | 2024
TENSIONING FORCE VARIATION DISPLAY DEVICE OF GROUND ANCHOR
| European Patent Office | 2016