REINFORCEMENT METHOD OF MASONRY STRUCTURE, REINFORCEMENT STRUCTURE, ROUGHENING DEVICE AND ROUGHENING METHOD USING THE SAME

To provide a reinforcement method of a masonry structure that can form a shear key on a hole wall around a fixing portion with a simple operation, a reinforcement structure, a roughening device and a roughening method using the same.SOLUTION: There is provided a method of reinforcing an existing masonry structure 10 formed by stacking masonry materials 12, including the steps of: drilling a vertical hole 16 from a top 18 of the masonry structure 10 to the lower portion of the masonry structure 10 or the inside of the foundation thereof; forming a roughening portion 26 on a hole wall 24 at least below the vertical hole 16; joining a fixing portion 22 to the lower portion of the rod-shaped material 20 that functions as a tensioning material or a reinforcing material and then inserting the rod-shaped member 20 into the vertical hole 16 and placing the fixing portion 22 at the same level as or below the roughening portion 26; and filling the vertical hole 16 at the position of at least the roughening portion 26 with a solidifying material 28 and burying the fixing portion 22.SELECTED DRAWING: Figure 1 【課題】簡易な作業で定着部の周囲の孔壁にシアキーを形成することができる組積造構造物の補強方法、補強構造、目荒し装置およびこれを用いた目荒し方法を提供する。【解決手段】組積材１２を積み上げてなる既設の組積造構造物１０を補強する方法であって、組積造構造物１０の頂部１８から組積造構造物１０の下部またはその基礎の内部にかけて、鉛直孔１６を穿孔するステップと、鉛直孔１６の少なくとも下部の孔壁２４に目荒し部２６を形成するステップと、緊張材または補強材として機能する棒状材２０の下部に定着部２２を接合した後、この棒状材２０を鉛直孔１６に挿通配置するとともに定着部２２を目荒し部２６と同じかそれよりも下側に配置するステップと、少なくとも目荒し部２６の位置の鉛直孔１６に固化材２８を充填して定着部２２を埋設するステップとを備えるようにする。【選択図】図１