DYNAMIC BEHAVIOUR OF CABLE-STAYED BRIDGES UNDER MOVING LOADING . DEVELOPMENTS IN STRUCTURAL ENGINEERING. PROCEEDINGS OF THE FORTH RAIL BRIDGE CENTENARY CONFERENCE, HERIOT-WATT UNIVERSITY, ENDINBURGH, SCOTLAND, AUGUST 21-23, 1990. VOLUMES 1 AND 2

In this paper the dynamic effects of a moving load on the structure of a cable-stayed bridge are analyzed. The bridge structure is mathematically modelled with two types of finite elements: bar and beam elements. Special bar elements are used to model the cables. Beam elements are used to model the bridge superstructure and the towers. The model for the vehicle is a mass in contact with the structure-spring and damper-suspended mass. The motion equations of the system formed by the mathematical model of the structure and the vehicle model are derived through standard methods of structural dynamics. These equations are nonlinear, due to cable behavior and the moving load, and are solved by an iterative step-by-step integration method based on a cubic interpolation of the inertia forces. Their solution provides time histories of displacements and internal forces in the structure. Impact coefficients are determined by comparing the maximum dynamic responses with the static ones. Example of a typical structure of a cable-stayed bridge under moving load is presented. (Author/TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0419152407
• Corporate Authors:

  Spon (E and FN) Limited

  11 New Fetter Lane
  London EC4P 4EE,   England 
• Authors:
  • Venancio-filho, F
  • El DEBS, A
• Publication Date: 1990

Language

• English

Media Info

• Features: References;
• Pagination: p. 334-345
• Serial:
  • Publication of: Spon, E&FN
  • Publisher: Spon (E and FN) Limited

Subject/Index Terms

• TRT Terms: Bridges; Cable stayed bridges; Conferences; History; Loads; Mathematical models; Structural analysis; Structural mechanics
• Uncontrolled Terms: Loading; Structural behavior
• Old TRIS Terms: Bridge dynamics
• Subject Areas: Bridges and other structures; Highways; History;

Filing Info

• Accession Number: 00609501
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• ISBN: 0-419-15240-7
• Files: ITRD, TRIS
• Created Date: Jun 30 1991 12:00AM