Dissertation > Excellent graduate degree dissertation topics show

The Seismic Response Analysis and Earthquake-reduction Design Research on the Single Tower Cable-stayed Bridge

Author: ZhuWeiWei
Tutor: YangJiXin
School: Wuhan University of Technology
Course: Roads and bridges to cross the river engineering
Keywords: Single-tower cable-stayed bridge Elastic cord device Viscous dampers Time history analysis Shock absorber design Parameter Sensitivity Analysis
CLC: U442.55
Type: Master's thesis
Year: 2011
Downloads: 57
Quote: 0
Read: Download Dissertation

Abstract


Large span cable-stayed bridge is usually is the hub of transportation engineering , investment , and have a significant impact on the national economy ; damage in the earthquake , causing huge economic losses and serious impact to the earthquake relief work and reconstruction of the affected areas . How to improve the seismic capacity of the bridge is an important research topic in bridge engineering , is the pursuit of one of the objectives of the seismic design . Therefore, take reasonable and effective damping design of large span cable-stayed bridge to ensure its security in the earthquake , has very important social and economic significance . Damping design of the cable-stayed bridge , the dominant ideology in the earthquake , the internal forces and displacements of the cable-stayed bridge is as small as possible , but usually these two aspects are often mutually contradictory , to make the internal force the reaction often have to pay a larger displacement as the price, and vice versa . In this paper, the research background to the the Yingtan letter River Bridge , through large finite element program MIDAS / Civil were established without damping measures , the use of horizontal cables damping and viscous dampers for a total of three computational model of the bridge and dynamic characteristics analysis compared the three models under the structure of the vibration characteristics of the dynamic characteristics of the elastic cable with viscous damper . By earthquake analysis , analysis of the effect of elastic cable device with viscous dampers , to discuss the impact of the damping effect of the change of the design parameters of the elastic cable with viscous damper , and came to the reasonableness of the elastic cord elastic stiffness , viscous damper a reasonable damping coefficient C damping exponent α . The analysis shows that , simply choose reasonable parameters , both elastic the cable damping or viscous dampers can control the longitudinal displacement of the main bridge in the earthquake , and the main bridge internal force response while reducing . The last comparative analysis to determine the bridge 's optimal damping program is viscous dampers . This program is to improve the seismic capacity and durability of the cable-stayed bridge , in line with the thinking of the shock absorber design . Available for other types of bridge seismic analysis and damping design reference .

Related Dissertations

  1. Based on Nonliner Finite Element Analysis of the Infilled Wall Frame Structure,TU323.5
  2. Multi-storey Steel Structure Design Method Based on Optimum Lateral Stiffness Distribution,TU973.13
  3. Study on Yield Mechanism of Reinforced Concrete Frame Structure’s Strong Column-Weak Beam under Rare Earthquake Action,TU275
  4. Span steel arch structure seismic performance of,TU352.11
  5. Floating system under the bridge vibration control vehicle braking force,U441.3
  6. The dwarf tower cable-stayed bridge seismic response analysis and mitigation and isolation,U442.55
  7. Large-span steel box basket handle arch bridge dynamic characteristics of the high-speed rail and earthquake response analysis,U442.55
  8. 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
  9. Study on Response and Shock Absorption Measures for Long-Span Bridge under the Long-Period Ground Motion,U442.55
  10. The Analysis about Pounding of Simple Beam Bridge When Seismic Response,U441.3
  11. Analysis and Research on Windproof of Continuous Rigid-frame Bridge,U441.3
  12. Study on Seismic Performance Analysis of the Long-Span Structure for Coal-Conveyer Gallery,U442.55
  13. The Application Research of High-level Steel Frame-support Structure System in High-intensity Area,TU973.13
  14. The Elastic-plastic Earthquake Response Analysis of Out-of-code High-rise Structure with Shear Wall,TU973.2
  15. The Analysis of the Structure Stability of Zhonghui Plaza Mansion,TU311.2
  16. The Wind Performance Research of the Large Span Beam String Structure,TU399
  17. Exterior insulation and finish systems earthquake analysis,TU761.12
  18. Seismic Design Seismic Response input wave selection and virtual space realization,TU352.11
  19. Research on "Strong Column Weak Beam" Yield Mechanism Factors of Reiforced Concrete Frame Structure,TU375.4
  20. Study on Influence of Uneven Settlement of Ground Surface in Rc Frames Structure,TU375.4
  21. Anti-Seismic Researches on A New Type of Light Guage Steel Framed Residences,TU352.11

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