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[I-110] A Study on the Rotational Rigidity of Road Sign Bases Considering Bending Rigidity

*Ayano Ishibashi¹, Masayuki Saeki¹, Shogo Morichika¹, Shingo Matsui², Akihiko Narita³ (1. Tokyo University of Science, 2. SEIWA Electric MFG Co., Ltd., 3. NEXCO-EAST Engineering Co., Ltd.)

Keywords:

Road Sign,natural frequency,Rotational rigidity