METHOD FOR FIXING REINFORCING-BAR TO CONCRETE STRUCTURE

PROBLEM TO BE SOLVED: To exhibit fixing force between an existing concrete and reinforcing-bars as designed by confirming that roughening treatment is surely performed.SOLUTION: A roughness state of the inner wall surface 70 of a drilled hole is confirmed by using the measuring device which includes: measuring means 20 mountable on a tip part of a core tube 160 of a drilling device 100 fixed to a concrete structure; transfer means for transferring the measuring means 20 along the longitudinal direction of the inner wall surface 70 of the drilled hole; transfer distance measuring means 41 for measuring a transfer distance of the measuring means 20; shape calculation means 42 for calculating an irregular shape of the inner wall surface 70 of the drilled hole by receiving measurement signals from the measuring means 20 and the transfer distance measuring means 41 and performing a predetermined arithmetic processing. When the roughness state is sufficiently treated, reinforcing-bars are inserted into the roughening-treated hole while a filler is injected thereinto. 【課題】 確実に目粗し処理が行われたことを確認することにより、既設コンクリートと補強鉄筋との定着力を設計通りに発揮させる。【解決手段】 コンクリート構造物に固定された削孔装置１００のコアチューブ１６０の先端部分に取り付け可能な測定手段２０と、測定手段２０を孔壁内面７０の長手方向に沿って移動させる移動手段と、測定手段２０の移動距離を計測する移動距離計測手段４１と、測定手段２０及び移動距離計測手段４１からの計測信号を受信して所定の演算処理を行うことにより孔壁内面７０の凹凸形状を求める形状演算手段４２等を備えた測定手段を用いて、孔内壁面の目粗し状態を確認する。目粗し状態が十分に行われている場合に、目粗し処理を行った孔内に充填材を注入するとともに、補強鉄筋を挿入する。【選択図】図１