Dissertation > Excellent graduate degree dissertation topics show

Durability Evaluation of Concrete Bridge Considering the Time Effect

Author: ZhengXueZhong
Tutor: XuYue
School: Chang'an University
Course: Bridge and Tunnel Engineering
Keywords: durability assessment durability prediction time-varied factors uncertain analytic hierarchy methord
CLC: U448.33
Type: Master's thesis
Year: 2009
Downloads: 71
Quote: 0
Read: Download Dissertation

Abstract


Many concrete bridges have different degrees of durability problem for the effects of loads and bad environment.For the golas of reducing or avioding the serious consequences from deteriorating of durability ,a evaluation method for bridge’s durability is need.This method need to find out the durability situation of concrete bridges timely and will not cost much to monitor the bridges.The main contents in this paper are as follow:(1)The factors that effecting the durability of concrete bridge are studied andsummarized,and then a three-layer evaluation model for durability of concrete bridge is builded base on the fuzzy evalution theory.(2)The durability evaluation and prediction are combined by introducing the time variate to the indicator layer of the evaluation model,so durability can also bo preidicted in the evaluation model. The values of these durability factors at different times are calucated using their own time-varied predict model,and the factors are evaluated according to their own membership degree function.If any factor can not be predicted or has not been predicted yet,it’s durability evaluation vectors at different times is assessed by combined the bridge maintenance standard and it’s servce life statistics data.(3)The evaluation vectors of indicutor layer at different times are taken as input data of the evaluation model,so the durability evaluation vectors of the whole bridge at different times are got. Uncertain judgement matric ,group judgement theory ,set-value stastical theory are introduced to the calculation of weight values of durability factors. Asymmetric approach degree method is also introduced in this paper to detemined the durability grades at different times of the bridge .(4)A bridge is calculated using the methord in this paper.Durability grades of this bridge at different times are calculated and compared to the result of practical detection and evaluation,which indicates that the time-consided evaluation methord in this paper is feasible.

Related Dissertations

  1. Study of Durability Basing on Exposure Test and Time-Varying Reliability for RC Structure,TU375
  2. Durability Assessment and Service Life Prediction of Concrete Structure under Fuzziness and Randomness,TU375
  3. Research of Promoting Concrete Bridge Durability,U448.33
  4. Durability Study of Reinforced Concrete Bridge under Chloride Ion Environment,U448.34
  5. Research on Durability Assessment and Concidence Check of Typical Aircraft Structures,V214
  6. Dynamic and Holistic Assessment of Durability for Existing Reinforced Concrete Bridge Structure,U448.34
  7. Durability Status Research for Existing Concrete Structure in Chongqing,TU375
  8. The Research on Durability Assessment Method and Strategy of Maintenance and Strengthening Schemes of In-Service Bridge,U445.72
  9. Durability Assessment and Estimate of Existing Reinforced Concrete Bridges,U448.34
  10. Durability Evaluation Analysis of Concrete Structures Based on Unascertainty,TU375
  11. Reliability Based Durability of concrete bridge across the sea,U448.34
  12. Study on the Mechanical Property of Corroded Anchorage Structure and Its Durability Evaluation,TU476
  13. Research on Durability and CFRP Sheets Strengthen Steel Reinforced Concrete Beams,TU398.9
  14. Probability-based durability design and assessment of concrete structures,TU375
  15. Study on the Durability Analysis and Evaluation System for River Shield Tunnel,U451
  16. Study on Durability of High Performance Reinforced Concrete Structure,TU375.1
  17. Buckling Property of Corroded Steel Rebar and Its Influences on Reinforced Concrete Column Sectional Strength,TU375
  18. Fundamental Research on Durability Assessment and Quality Control of Concrete Structure,TU375
  19. The Research on Durability Assessment Method of Corroded Reinforced Concrete Structural Members,TU375
  20. Research of Promoting Concrete Bridge Durability,U448.33
  21. Research on Reliability Evaluation and Remaining Service Life Forecast of Existing Concrete Bridge,U448.33

CLC: > Transportation > Road transport > Bridges and Culverts > All kinds of bridges > Bridges: the material points > Concrete bridge
© 2012 www.DissertationTopic.Net  Mobile