Computational Technology Resources - CCP

Keywords: pressure loads, shock factor, shock spectrum, dynamic amplification.

Summary

This paper shows a method to calculate a tunnel specific shock spectrum in order to account for the dynamic amplification effects of impulsive loads due to train entrance and train passing through a tunnel. In this study the calculation of the shock spectrum for two different railway tunnels in Austria is presented. In addition a method for fatigue design of structures in tunnels is presented. To calculate the shock spectrum of the simulation results of the aerodynamic loading due to a train passing, TSI design trains were considered. The Duhamel envelop integral was solved for arbitrary loading and varying the natural frequency of the analysed structure in the tunnel over the range of interest. The method presented for the calculation of tunnel specific shock spectrums can be applied to any arbitrary time history of pressure loads that results from simulations of train passing. By use of the method presented, the dynamic amplification due to the high impulsive pressure loads during train entrance and crossing is correctly considered and the design loads are evaluated in the correct way.

purchase the full-text of this paper (price £22)

go to the previous paper
go to the next paper
return to the table of contents
return to the book description
purchase this book (price £85 +P&P)

	Computational & Technology Resources an online resource for computational, engineering & technology publications
	not logged in - login
Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 110 PROCEEDINGS OF THE THIRD INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE Edited by: J. Pombo Paper 57 Dynamic Response of Structures in Tunnels due to Aerodynamic Loading M. Reiterer¹ and H. Kari² ¹REVOTEC zt gmbh, Vienna, Austria ²2Austrian Federal Railways, Vienna, Austria doi:10.4203/ccp.110.57 purchase the full-text of this paper Full Bibliographic Reference for this paper M. Reiterer, H. Kari, "Dynamic Response of Structures in Tunnels due to Aerodynamic Loading", in J. Pombo, (Editor), "Proceedings of the Third International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 57, 2016. doi:10.4203/ccp.110.57 Keywords: pressure loads, shock factor, shock spectrum, dynamic amplification. Summary This paper shows a method to calculate a tunnel specific shock spectrum in order to account for the dynamic amplification effects of impulsive loads due to train entrance and train passing through a tunnel. In this study the calculation of the shock spectrum for two different railway tunnels in Austria is presented. In addition a method for fatigue design of structures in tunnels is presented. To calculate the shock spectrum of the simulation results of the aerodynamic loading due to a train passing, TSI design trains were considered. The Duhamel envelop integral was solved for arbitrary loading and varying the natural frequency of the analysed structure in the tunnel over the range of interest. The method presented for the calculation of tunnel specific shock spectrums can be applied to any arbitrary time history of pressure loads that results from simulations of train passing. By use of the method presented, the dynamic amplification due to the high impulsive pressure loads during train entrance and crossing is correctly considered and the design loads are evaluated in the correct way. purchase the full-text of this paper (price £22) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £85 +P&P)
Back to top	©Civil-Comp Limited 2023 - terms & conditions