Dissertation > Excellent graduate degree dissertation topics show

The Collision Simulation Analysis on Bridges in Mountainous Areas Combined with the Site Conditions

Author: LiMaoSen
Tutor: ShenAiGuo
School: Southwest Jiaotong University
Course: Bridge and Tunnel Engineering
Keywords: Earthquake action Site environment Time-history analysis Girder bridge Crash simulation Scaling effect
CLC: U442.55
Type: Master's thesis
Year: 2013
Downloads: 14
Quote: 0
Read: Download Dissertation

Abstract


With the demands of economic development and transportation, more and more bridges are located in different mountainous terrain. And all previous earthquakes make us know that because of the influence of the mountainous terrain conditions or the special site environment, the bridges in mountainous areas always suffered more from seismic damage than that in plain areas. Bridges in mountainous areas mainly are beam bridges which usually suffer collision damages under seismic excitation. Therefore, it is necessary to make a study on the collision response of bridges in mountainous areas combined with the site conditions.With reasonable calculation parameters, three-dimensional finite approaches and finite element software---midas FEA and midas civil, and by setting up a joint model of terrain and bridge based on the four kinds of common terrain in mountainous areas:basin-shaped concave terrain, piedmont diluvial terrain, wavy terrain and deep valley terrain, this paper, with time history analysis, calculated the surface point acceleration response of the terrain model and the collision response of bridge structures under seismic excitation with considering the impact of site environmental and without considering the impact of site environment.The results of the calculation indicate:the site environment has remarkable influence on the seismic response of the structures. Different site environment differ greatly on the seismic response of the surface points. And with considering the impact of site environment, the collision response is stronger than that without considering the impact of site environment, which means that the site environment has the effect of amplification on the collision response of bridges and the extent of amplification is related to the peak and shape of the acceleration time-history curve of the surface point. Meanwhile different types of bridges are different from each other in collision response. The collision force of simply supported girder bridges is limited, but with more frequency of collision. The collision force of continuous girder bridges is bigger, and the collision is more complicated. Though with limited times of collision, the collision force of rigid frame bridges is very high.

Related Dissertations

  1. Study on Seismic Behavior of Prestressed Concrete Continuous Rigid Frame Bridge with High-Pier and Large-Span,U442.55
  2. Pangang Xichang Vanadium steel new base regional crustal stability assessment,P542
  3. The Analysis about Pounding of Simple Beam Bridge When Seismic Response,U441.3
  4. Stents Cast-in-situ Prestressed Concrete Continuous Box Girder Bridge Construction Control Technology,U445.4
  5. Analysis of Vehicle-Bridge Coupling Vibration of Wide Continuous Box-Girder Bridge,U441.3
  6. Study on Mechanical Performance of Curved Box-girder with Corrugated Steel Webs,U448.213
  7. The Influence Analysis of the Design Parameters of Large-span High Piers Bend Continuous Rigid-framed in the Natural Oscillation and Earthquake Response,U441.3
  8. Experimental Investigation and Study on the Bridges Strengthened Using Steel Plate and Concrete Composite Strengthening Technique,U445.72
  9. Large-span steel box basket handle arch bridge dynamic characteristics of the high-speed rail and earthquake response analysis,U442.55
  10. The dwarf tower cable-stayed bridge seismic response analysis and mitigation and isolation,U442.55
  11. Railway span continuous beam bridge pier design parameters on the performance analysis of the structure of the lateral vibration,U441.3
  12. Thin Walled High-Pier Construction Phase Response Analysis of Wind Loads,U441.2
  13. Study of the Highway Collapse Type and Formation Mechanism under Strong Earthquake,P642.21
  14. Experimental Research on Deformation Characteristics of Unsaturated Loess,TU411
  15. The New SMA Complex Damper and Study on Seismic Behavior of Bottom Frame Brick Structure Based on SMA Damper,TU352.11
  16. Analysis on Thermic Crack of Thermal Insulated Composed Wall,TU311.3
  17. The Survey and Research of Residential Housings Seismic Performance,TU352.11
  18. Transfer Story of Beam and Transfer Story of Truss Design Comparative Analysis,TU323.4
  19. Nonlinear Analysis of High-Rise Steel-Concrete Composite Structure,TU398.9
  20. Study on Base Isolated Structure Considering Soil-Structure Dynamic Interaction,TU352.12
  21. Study on Wind-Induced Respones and Comfort of a Super-High Building,TU973.2

CLC: > Transportation > Road transport > Bridges and Culverts > Investigation, design and calculation > Bridge Design > Damage Analysis and Seismic Design
© 2012 www.DissertationTopic.Net  Mobile