Fireproof structure of penetration part in section of building and its construction method

摘要

PROBLEM TO BE SOLVED: To provide a construction method for a fire resistive construction of a penetration part, which enables a filler, infilled into a through-hole, to be easily checked by visual recognition.SOLUTION: In a construction method for a fire resistive construction of a penetration part in a division body of a building having a through-hole 2 subjected to insertion of piping or a cable 8, a transparent instrument 16 is arranged between an outer surface 9 of the piping or the cable 8 and an inner surface 2 of a wall 1 for dividing and forming the through-hole 2.SELECTED DRAWING: Figure 2