2009 Fiscal Year Final Research Report

Estimation of road roughness near expansion joints

Research Project

Project/Area Number	19760312
Research Category	Grant-in-Aid for Young Scientists (B)
Allocation Type	Single-year Grants
Research Field	Structural engineering/Earthquake engineering/Maintenance management engineering
Research Institution	Kanazawa University
Principal Investigator	FUKADA Saiji Kanazawa University, 環境デザイン学系, 准教授 (10313686)
Project Period (FY)	2007 – 2009
Keywords	伸縮継手 / 路面凹凸 / 車両ばね振動
Research Abstract	The suspension spring vibration of a truck is generated by the road roughness at the expansion joints, when the truck run a highway bridge. Moreover, the spring vibration of a truck and bridge vibration transmits to the houses around the bridge. In this study, in order to reduce these vibrations, the relation of the road roughness round the expansion joints and the suspension spring vibration of a truck were investigated. Also, this study proposed a new evaluation method for detecting the road roughness with the long wavelength affecting trucks. The validity of the method was verified for the various roughnesses which had caused the vibration problem.

(2 results)