Additional strength construction method null top and bottom direction around the punch station after the construction, of the single arrangement of bar

摘要

PROBLEM TO BE SOLVED: To provide a reinforcing method capable of making the reinforcement enabling bending strength and shear strength equal to, or more than, a foundation without having any penetrating hole or exceeded to produce even if an opening is afterwards made in a single arrangement RC foundation to keep a space for letting piping and wiring pass in the opening.;SOLUTION: The penetrating hole 2 is perforated in the single arrangement existing RC foundation 1 for the low-rise housing reinforced by a main bar 6 extended in the longitudinal direction while locating in one vertical plane at an interval in the vertical direction and a vertical bar 7 placed at an interval in the longitudinal direction for connecting the main bar. An opening circumference of the penetrating hole 2 is surrounded by an additional reinforcing bar 4 inclined at 45 degrees to the horizontal, a polymer cement mortar 5 is applied to a foundation rise surface 3 so that the reinforcing bar can not be exposed. Construction work can be very easily finished within a short period of time, and cost reduction of work can be promoted.;COPYRIGHT: (C)2006,JPO&NCIPI