標題: | Evaluation of dynamic vehicle load on bridge decks |
作者: | Lin, JH Weng, CC 土木工程學系 Department of Civil Engineering |
關鍵字: | dynamic vehicle load;bridge;pavement roughness;DLC |
公開日期: | 1-九月-2004 |
摘要: | Developed herein is a spectral approach for evaluating the dynamic vehicle load due to the passage of a vehicle moving at constant speed along a rough bridge surface. Based on the approach, a simple closed-form solution for predicting the variation of dynamic vehicle load on a bridge deck is derived. Numerical examples of the application of the solution to a simply-supported bridge are presented. Four different classes of pavement roughness (including: very good, good, average, and poor pavements) and three different vehicle speeds (speeds of 60, 100, and 140 km/h) are used in numerical analysis. The Dynamic Load Coefficient (DLC), a parameter used to characterize the magnitude of dynamic vehicle load, is estimated. The effects of vehicle speed and pavement roughness on the variation of dynamic vehicle load are investigated. It is concluded that if the effect of engine motion on vehicle vibration is disregarded, both the DLC and standard deviation of dynamic vehicle load are proportional to the square root of the pavement roughness coefficient S(no) for a specified vehicle speed. |
URI: | http://hdl.handle.net/11536/26411 |
ISSN: | 0253-3839 |
期刊: | JOURNAL OF THE CHINESE INSTITUTE OF ENGINEERS |
Volume: | 27 |
Issue: | 5 |
起始頁: | 695 |
結束頁: | 705 |
顯示於類別: | 期刊論文 |