CRACK CONTROL METHOD OF REINFORCED-CONCRETE WALL

摘要

PROBLEM TO BE SOLVED: To provide a crack control method of reinforced-concrete wall with which a cracks are concentrated to joint positions without using an induction member such as a hollow mortar pipe which causes reduction of structure durability at the joint position or a crack induction steel bar in which rusting caused by water infiltrated from the crack becomes a problem, and further, without increasing a joint depth of a rack induction joint.;SOLUTION: An unboned tendon 2 is buried in a horizontal direction into a reinforced-concrete wall 1 between crack induction joints (a) and (a), an opening 3 for tensioning the tendon is formed beforehand. After concrete is hardened, the tendon is tensioned by tensioning work in the opening, a prestress P in the horizontal direction is introduced to the reinforced-concrete wall between the crack induction joints, and the opening is filled with grout members 4 thereafter.;COPYRIGHT: (C)2012,JPO&INPIT