| 摘要 |
PROBLEM TO BE SOLVED: To provide a temporary joint method for a column during jack system which is capable of improving the safety of demolition work, of easily corresponding with the column to be jointed, of reducing construction cost. SOLUTION: Angles 6 are installed with anchor bolts 5 on four surfaces of a foundation column 3. Next, at the upper portion of the angles 6, a pair of channel-shaped jointing steel members 4 are jointed with bolts 8 so as to form a steel pipe column, and the joint member 4 is arranged by straddling the vicinity of the column 2 and the foundation column 3. An opening at the lower portion of a pair of jointing steel member 4 which becomes a form of steel pipe column is closed at the upper surface of the angle 6, and an opening at its upper part is covered with a form 9. Within this closed space, mortar grout 12 is filled from a grunt filling hole 11 at the lower portion of the joint steel member 4 and hardened. After hardening of the grout, when the jointing steel member 4 jointed by the bolts is removed, the space between the bottom end of the column 2 and the foundation column 3 is connected with the mortar grout 12. |
