Dissertation > Excellent graduate degree dissertation topics show

The Stage Analysis of Force and Research on Construction Control for Large-cantilevered Prestressed Pier Caps

Author: YinHeng
Tutor: HuangPingMing
School: Chang'an University
Course: Architecture and Civil Engineering
Keywords: prestressed concrete large-cantilevered pier cap finite element analysis FiberBragg Grating construction control
CLC: U445.4
Type: Master's thesis
Year: 2013
Downloads: 8
Quote: 0
Read: Download Dissertation

Abstract


In recent years,with the continuous development of city construction and traffic volumeincrease sharply,we need the more and the more wide roads to meet citizens’ traveldemand.However, extend road restricted by the side of road building,only through expansionthe viaduct can solve the contradiction space.In the process of the construction of the viaductbridge deck more and more wide,under the premise of not only ensure it has enough traffic onthe bridge widith,but ensure that the bridge has a large space and good line of sight,theconcept of large-cantilevered pier cap arise at the historic moment. Projects related to thelarge-cantilevered prestressed pier caps have never been implemented before in our country.We have less experience about the construction of it.The research in this field need to carryout. Settling the practical problems including structural analysis, design, construction andoperation, giving useful advice on the future application of large-cantilevered pier caps. Aimto improve the overall technical level about the large-cantilevered prestressed pier caps on thestructural analysis, design, construction and operation.Mechanical characteristics, failure patterns and numerical methods of the pier caps havebeen studied respectively. Through analyzing the differences of using3D solid finite elementsand3D beam elements in stress analysis, this paper suggests that3D solid finite elementmodel be used in studying certain structural zones, like the column-cap joints and streamlinedtransition zones of column cross-section. Meanwhile, the non-linear elastic-plastic materialmodel has been proved applicable to the analysis, different anti-cracking methods have beencomparably studied and precisely analyzed the stress conditions of the cap beam on differentconstruction stages. The stress distribution of the beam and variation of stress in constructionhave been mastered in theory, the strength characteristic of large-cantilever pier beam alsobeen studied. The FBG sensorsis has been used in the beams in construction to obey stressdistribution in every construction stages. Furthermore, this paper compares the theoreticalresults with the measured data, proving that it is an effective way to build3D solid FEMmodels with coupled prestressed reinforcement elements, in the analysis of this type of piercaps. Additionally, the use of FBG sensorsis recommended in construction control as aneffective way to enhance stress and strain monitoring in the construction and operation processes.Ideas and proposals from this thesis have been successfully applied to thislarge-cantilever pier beam, solving certain practical problems. The research findings helpimproving levels of finite element analysis, structural design, construction control andoperational management of large-cantilevered pier caps, furthermore providing references forthe implementation of similar projects.

Related Dissertations

  1. Research on the Mainframe System of Powder Mixed EDM and the Craft Experiment,TG661
  2. EDM Electrode Wear Mechanism and Control Research,TG661
  3. Finite Element Analysis and Structure Optimal Design for Combined Seal at Normal Temperature and Low Temperature,TH136
  4. Study on the Design and Biomechanical Behaviors of Individualized Artificial Knee Joint,R318.1
  5. Design of Testing Equipment for Electronic Products,TN06
  6. Multi-pin Internal Fixation of Calcaneal Fractures in Finite Element Analysis,R687.3
  7. Airborne radar antenna pedestal rapid design systems research and development,TN959.73
  8. Sham hose drum drive means and hydraulic system of the structure,TE973
  9. Study of the Tunnelling Laneway Drilling and Anchor Rope Installation Device,TD353
  10. Study on Mechanical Property of Plug-pin Steel Tube Scaffold Platform,U673.3
  11. Virtual Prototype Realizing and Performance Research of Longitudinal Roadheader,TD421.5
  12. Research on Optimum Design of Plantary Gear Transmission Mechanism for Cutterbar,TH132.41
  13. The Structure Analysis and Optimization of Casey Green Laser Emission Dishes Support Bracket,TH743
  14. The Influence of Frame Structure Local Column Failure on Overall Performance,TU375.4
  15. Study of the Full Hydraulic Track Movable Power Station,TM624
  16. A strong dynamic load mechanical holder dynamics simulation and finite element analysis,TJ03
  17. TVM subway ticket design and analysis of the transmission device,U293.22
  18. The magnetorheological damper mechanical properties and Gun Recoil,TB535.1
  19. Nonlinear Structural Dynamics Analysis and Optimization Design on Naval Gun Driver,TJ391
  20. Analysis on Unloading of Large Span Steel Structures and Research on Its Mechanical Analysis,TU391
  21. Analysis on Static-dynamic and Fatigue Characteristics of Metallurgical Overhead Traveling Crane,TH215

CLC: > Transportation > Road transport > Bridges and Culverts > Bridge Construction > Construction Technology
© 2012 www.DissertationTopic.Net  Mobile