引張軟化曲線と引抜だぼモデルによる新旧コンクリート界面の強度と靱性の関係についての考察

概要

論文の詳細を見る
This study discusses the relationship between strength and ductility of vertical placing joints of concrete specimens, each of which has one of 5 differently treated surfaces. The main feature of this study is that the authors employed both tension softening diagram (TSD) and pull-out dowel model for discussion. The conclusions are as follows. 1. Relationship between tensile strengths of specimens with joint and no-joint is a linear one reflecting the fractured area on the surface of the joint. These strengths would be considered the sum of those by matrix and dowels in dowel model. 2. The strong interface would be modeled to have longer dowels that cause the longer critical crack width in TSD, which leads to larger fracture energy, and vice versa. 3. The dowel model proposed in this study can describe some important aspects in achieved TSDs of specimens with joint.
社団法人日本建築学会の論文
2009-03-30