令和元年度土木学会全国大会第74回年次学術講演会
2019年9月3日〜9月5日香川大学 幸町キャンパス、レクザムホール（香川県県民ホール）、JRホテルクレメント高松
令和元年度土木学会全国大会第74回年次学術講演会
2019年9月3日〜9月5日香川大学 幸町キャンパス、レクザムホール（香川県県民ホール）、JRホテルクレメント高松
[I-04]NUMERICAL ANALYSIS ON NATURAL VIBRATION CHARACTERISTICS OF 5-SPAN CONTINUOUS PC RIGID-FRAME BOX GIRDER BRIDGE
*Vu Thanh1、Komuro Masato1、Kishi Norimitsu1、Kawase Ryoji2(1. Muroran Institute of Technology、2. Koken Engineering Co.Ltd.)
This paper presents an investigation of the natural vibration characteristics of an actual five-span continuous PC rigid-frame box girder bridge. A numerical analysis method was conducted on the 3D finite element model of the bridge by using ABAQUS software to obtain dynamic characteristics. To investigate the damage level of the bridge, the results obtained from the analysis were compared to the experimental results, and concluding as follow: 1) The natural vibration frequencies and modes from the ambient vibration test were almost similar to the numerical analysis results, and 2) The natural vibration frequencies and modes of the undamaged bridge before the start of the operation were verified.