|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2011年09 期
| 標(biāo)題 |
| 公路簡支梁橋在車橋耦合作用下的沖擊系數(shù)研究(51 卷) |
| 英文標(biāo)題 |
| Study on impact coefficient for highway simple-supported beam bridge under car-bridge coupling interaction |
| 摘要 |
| 應(yīng)用d‘Alembert原理和有限元法分別建立了5個自由度的重載車輛和橋梁結(jié)構(gòu)的振動微分方程。以路面隨機不平順為激振源，利用有限元軟件Ansys及增編的命令流，進(jìn)行了車橋耦合系統(tǒng)動力響應(yīng)計算，分析了路面和車輛等有關(guān)參數(shù)對橋梁沖擊系數(shù)的影響。計算結(jié)果揭示了簡支梁橋沖擊系數(shù) |
| 作者 |
| 新聞作者:王貴春，章長玖，陳 淮 |
| 關(guān)鍵字 |
