FASTENER, CONSTRUCTION METHOD OF ATTACHING ATTACHMENT TO CONCRETE BASE MATERIAL, AND FASTENING PORTION STRUCTURE

PROBLEM TO BE SOLVED: To provide a technique of filling the whole interior of a communicating through-hole with a filler, facilitating inhibition of the ingress of air bubbles into the filler, and ensuring workability in nut tightening work in execution of attachment construction work of fastening/attaching an attachment to a concrete base material with a bolt put through the through-hole in which a base material through-hole penetrating the concrete base material communicates with a bolt through-hole penetrating the attachment. SOLUTION: The attachment construction work includes a fastening process of fastening/fixing a cap 2 to a tall concrete column 1 using a fastener 10 having a bolt 11 with an injection hole 11c for filler injection, a nut 12, and a pair of washers 13 having a vent slot 13a formed therein, and a filler injection process of injecting a filler 5 into a communicating through-hole 4 through the injection hole 11c of the bolt 11, the filler injection process being executed following the fastening process. The attachment construction work is carried out to provide a fastening portion structure. COPYRIGHT: (C)2011,JPO&INPIT