Dissertation > Excellent graduate degree dissertation topics show

Analysis on the Optimal Ratio of the Height of Pylon and Span of Loy-pylon Cable-stayed Bridge

Author: ZuoChen
Tutor: LuoNa
School: Chang'an University
Course: Bridge and Tunnel Engineering
Keywords: Extradossed bridges Impact matrix Cable Force Optimization Tower span ratio
CLC: U448.27
Type: Master's thesis
Year: 2011
Downloads: 61
Quote: 0
Read: Download Dissertation

Abstract


Low tower cable-stayed bridge is developed on the basis of conventional cable-stayed bridge with a new bridge structure. Its structural characteristics between continuous girder bridge between conventional cable-stayed bridge, with the characteristics of hardness and softness. Extradossed bridges through the main beam flexural vertical loads, cable-stayed vertical force component assume the remaining vertical load. At the same time, the level of cable-stayed force component as external prestressing from the main beam stiffening role, so as to achieve the purpose of improvement in the main beam force performance. Compared to the other bridge type, a small number of domestic construction extradossed bridges, the study also there is a certain lack of its structural properties. Papers collected, summarized and analyzed the the dwarf tower cable-stayed research data at home and abroad, the impact matrix method of cable force optimization, tower height change of the main beam, cable, etc., select optimized function and optimal tower cross likened to a useful discussion. First, the article describes the development status and situation of the domestic and international low tower cable-stayed bridge. Low tower cable-stayed bridge is a novel bridge type has superior structural performance and good economic indicators in recent years in the rapid development momentum at home and abroad. But the lack of the dwarf tower cable-stayed construction experience and research work, further research needs to be done on its structural properties. Secondly, the introduction of the overall design of the low tower cable-stayed bridge, the span arrangement main beam cross-section form of cable arrangement of main Tabou set. And recalling the dwarf tower cable-stayed static analysis theory, such as the finite element method, the internal force calculation of live load and geometric nonlinearity. In addition, describe and compare various cable force optimization theory, and to build a real bridge model MADIS / Civil, with powerful computing capability of MATLAB software impact matrix method of real bridge cable force optimization. The cable will optimize value into the model, and the main beam of the moment, stress, displacement and cable force to conduct a comprehensive analysis. Finally, prepare a few reasonable high tower, respectively impact matrix method of cable force optimization, a detailed analysis of the impact of the tower height change of the main beam and cable force, and curve fitting using MATLAB software toolbox tower and beam bending The strain energy, the main pier top beam moment, cable cable amount fitted. Considering tower beam bending strain energy, pier top main girder bending moment, displacement, stress and cable cord amount to establish a reasonable objective function and solving the obtained optimal tower cross than the main beam and cable forces relative reasonable.

Related Dissertations

  1. Wide dwarf tower cable-stayed structure parameters analysis and wide box girder shear lag effect,U448.27
  2. The dwarf tower cable-stayed bridge seismic response analysis and mitigation and isolation,U442.55
  3. Research of Key Technique in Construction Control of P.C. Cable-stayed Bridge,TU455
  4. Research on Structural System and Parameters of Extradosed Cable-stayed Birdge,U448.27
  5. Research on Optimization in Construction Control of P.C. Cable-stayed Bridge,U445
  6. Research on Flatness On-Line Intelligent Control for the Wide Strip Steel Cold Mill,TG333
  7. Cold-rolled strip shape control matrix model,TG335.12
  8. Study on Calculation Method of Optimal Stayed-Buckle Cable Force for Reinforced Concrete Arch Bridge with Cantilever Cast Method,U445.466
  9. Study on Suspender Replacemet of X-Style Arch Bridge,U445.74
  10. Study on Optimization of Cable Tension of Completion State under Dead Load for Hybrid Cable-Stayed Bridge,U448.27
  11. Cable-stayed bridge ideals into bridge state with a reasonable construction of state,U448.27
  12. Research on Cable Replacement Theory and Technology of Cable-Stayed Bridge,U448.27
  13. Public and determine and adjust the cable tension,U448.27
  14. Cable Force Optimization for Cable-Stayed Bridge Based on Whole Process,U448.27
  15. Research on Analyzing Construction, Seismic Response and Optimization of Piers’ Stiffness for Low-Pylon Cable-Stayed Bridge Based on Plate Element,U448.27
  16. Technical Research on Construction Control of Changchun Light Railway Cable-Stayed Bridges Without Back-Stays,U445.4
  17. Construction Control of Partial Cable_Stayed Bridge,U445
  18. The Research on Structure Behavior of Long Span X-type CFST Arch Bridge during Construction Process,U448.22
  19. The Research of Six-Axis Stewart Force/torque Sensor,TP212.1
  20. Nonlinear Analysis of Long-Span Cable-Stayed Bridges under Dead Loads,U441.5

CLC: > Transportation > Road transport > Bridges and Culverts > All kinds of bridges > Bridge: Structure > Cable-stayed bridge
© 2012 www.DissertationTopic.Net  Mobile