2009 Fiscal Year Final Research Report

Mechanical properties of large-scale timber member adjacent steel joint under repeated load

Research Project

Project/Area Number	19560482
Research Category	Grant-in-Aid for Scientific Research (C)
Allocation Type	Single-year Grants
Section	一般
Research Field	Structural engineering/Earthquake engineering/Maintenance management engineering
Research Institution	University of Miyazaki
Principal Investigator	IMAI Fujio University of Miyazaki, 工学部, 教授 (00038077)
Co-Investigator(Kenkyū-buntansha)	NAKAZAWA Takao 宮崎大学, 工学部, 教授 (70041027)
Project Period (FY)	2007 – 2009
Keywords	木橋 / ボルト接合 / 鋼ジョイント / 樹脂充填 / 引張耐荷力 / 応力性状
Research Abstract	In this study, the mechanical properties of bolted connections in the large section timber were investigated. The effects of resin filled up into bolt-hole clearances on the load- capacity of bolted connections under static cyclic tensile loading was investigated in the experiment and finite element analysis using "contact element" was performed to clarify the stress property of a large section. As a result of experimental investigation, it was cleared that filling up resin into bolt-hole clearances leads to a decrease in the number of bolts under the same design condition. It was also indicated from the results of finite element analysis that "contact element" is able to be applied to the analysis of bolted connection.