Volume 10, Issue 5 (2nd conferences on earthquake engineering (Alborz Province) 2016)                   2016, 10(5): 145-165 | Back to browse issues page

XML Persian Abstract Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Nouri G, Tahmasebi M. On the Dynamic Behavior of Bridges Under Moving Loads . Journal of Engineering Geology 2016; 10 (5) :145-165
URL: http://jeg.khu.ac.ir/article-1-2599-en.html
Abstract:   (6479 Views)

Due to increasing speed and mass of trains and vehicles, the errors arising from utilizing moving force method to obtain dynamic response of bridges cannot be neglected. In this paper, dynamic response of bridges under moving loads is studied. The bridge is modeled as simply-supported Euler-Bernoulli beam. Since in modeling moving loads by moving force method, inertial forces are neglected, this method is valid for a limited range of influential parameters (speed and mass). By considering inertial forces between the moving load and supporting structure, moving mass method can be utilized to extract dynamic governing equations. Numerical results reveal that by increasing speed and mass of the moving load, midpoint dynamic deflection of bridge obtained by two distinct methods differ considerably.  For example, for mass ratio of 0.15 and speed ratio of 0.8, 11 percent difference is observed in midpoint dynamic deflection calculated by two aforementioned methods.

Full-Text [PDF 759 kb]   (4527 Downloads)    
Type of Study: Original Research | Subject: Geotecnic
Received: 2016/12/21 | Accepted: 2016/12/21 | Published: 2016/12/21

Add your comments about this article : Your username or Email:
CAPTCHA

Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

© 2024 CC BY-NC 4.0 | Journal of Engineering Geology

Designed & Developed by : Yektaweb