教師資料查詢 | 類別: 期刊論文 | 教師: 林炳宏 LIN, PING HOUNG (瀏覽個人網頁)

標題:Impact formulas for vehicles moving over simple and continous beams
學年84
學期1
出版(發表)日期1995/11/01
作品名稱Impact formulas for vehicles moving over simple and continous beams
作品名稱(其他語言)
著者Yang, Y. B.; Liao, S. S.; 林炳宏; Lin, B. H.
單位淡江大學建築技術系
出版者
著錄名稱、卷期、頁數Journal of structural engineering121(11), pp.1644-1650
摘要In this paper, a new set of impact formulas are developed for simple and continuous beams subjected to moving vehicle loads. By modeling a vehicle as sprung masses and a bridge structure by beam elements, a parametric study is performed for various simple and continuous beams traversed by five-axle trucks. Central to this study is the adoption of a nondimensional speed parameter s , which is defined as the ratio of the driving frequency of the vehicle, as represented by πv/L, with v denoting the velocity of the vehicle and L the characteristic length of the beam, to the fundamental frequency ω of the beam. From the numerical study, it is concluded that the impact factors for the deflections, bending moments, and shear forces at the midpoints of simple beams are linearly proportional to the speed parameter, and that these formulas can be multiplied by certain modification factors to yield results for continuous beams and support shears. Other parameters studied herein include the vehicle/bridge frequency ratio, damping of the bridge, and road surface roughness.
關鍵字
語言英文
ISSN
期刊性質國內
收錄於
產學合作
通訊作者
審稿制度
國別中華民國
公開徵稿
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