Dissertation > Excellent graduate degree dissertation topics show

Response and Reliability of Reinforced Concrete Beam Subjected to the Explosions

Author: ZhangDaYu
Tutor: WangBinSheng；WangZhiWei
School: Harbin Engineering University
Course: Architecture and Civil Engineering
Keywords: Explosions Reinforced concrete Failure probability Equivalent SDOF system
CLC: TU375.1
Type: Master's thesis
Year: 2011
Downloads: 16
Quote: 0
Read: Download Dissertation

Abstract


It has been studied and discussed that the dynamic response and reliability of the reinforced concrete beam and slab are subjected to the explosive blasting load adopting the theoretical analysis and mathematical simulation method. The main work contents of this paper are as follows:(1) The approximate calculating method adopted in the reinforced concrete structural design to the protective structure is discussed. The reinforced concrete beam is considered as the single particle system, based on the ideal elastic-plastic theory, and motion equation is solved, then the elastic-plastic dynamic curve of the internal force and deformation of single freedom system is obtained; Finally based on the single particle spring-mass system, one simpler spring-mass analogy method is give, which provides the reference for the protective project design.(2) A new load generation method and simulation method of steel bar are proposed adopting the large FEM program LSDYNA. Three examples of reinforced concrete beam including flexural failure, brittle failure and direct shear failure under blast load are presented considering the effect of reinforcement. Part numerical results match reasonably well with experimental data.(3) Two loosely coupled SDOF systems are used to model the flexural and direct shear responses of simply supported reinforced concrete beams designed based on the actual code subjected to explosive loading. Incorporating the effects of random variations of the material strength, structure dimensions and blast loading properties, as well as the strain rate effect, failure probabilities of the two failure modes are analyzed adopting the FOSM method and the small sample number fitting method utilizing the valuable experimental formulation in the related literature. The reliability of the simply supported beam is analyzed subjected to the explosive loading with different amplitude and duration time.(4) Besides the influence of beam span lengths are investigated. A semi-analytical boundary has been derived to predict the failure mode of a slab in terms of its span length L, surface area A, and the peak reflected pressure and pressure loading duration based on the numerical simulation results.

Related Dissertations

  1. Stochastic Optimal Dispatch of Power System Considering Uncertain Line Failures under Extreme Weather Disaster,TM73
  2. Study on the Ductility of Reinforced Concrete Special-shaped Columns with Different Design Parameters,TU375.3
  3. Finite Element Analysis of Seismic Performance of Rc Beams Composite Strengthened with CFRP and Steel Plate,TU352.11
  4. Study on Yield Mechanism of Reinforced Concrete Frame Structure’s Strong Column-Weak Beam under Rare Earthquake Action,TU275
  5. Domestic and concrete highway bridge design method comparative analysis,U448.14
  6. Reinforced steel mechanical properties of concrete structures,TU398.9
  7. Domestic and international rail engineering design method comparison,U21
  8. Reinforced concrete structures interfacial debonding damage ultrasonic guided wave detection technology,TU375
  9. Reliability of the Shear Strengthening for RC T-beam Bridge with Bonded Steel Plates,U441
  10. Rapid Evaluation Methods and Analysis Program Development of the Bearing Capacity for Reinforced Concrete Girder Bridge,U441
  11. Study on the Test and Evaluation of the First Bridge in Bihu of Sanming District in Fujian Province,U446
  12. Test and Study on Anti-fracture Ability of Reinforced Filling Body in Dental Disease,R783
  13. The New Reinforcing Bar Net Reinforces the Research of Material,TU528
  14. Study on Techniques of Crack Control in Concrete Structures,TU755
  15. The Compressive Behavior of Reinforced Concrete Columns with GFRP a Nonliner Finite Element Analysis,TU375.1
  16. Dynamic Test and Modal Analysis of Prestressed Reinforced Concrete Truss Beam,TU378.6
  17. Experimental Research on the Influence of the Structural Behaviors of the RC-shear Walls with Different Reinforcement Ratio,TU398.2
  18. Experiment Study and Theoretical Analysis of SRC Columns under Fire Including Whole Process of Heating and Cooling,TU398.9
  19. Experimental Study on Seismic Behavior and Nonlinear Analysis of Flexiable Connection Infill Wall Frame Structure,TU352.11
  20. Reinforced concrete beams and reinforcement and restoration of fire Experimental and theoretical research,TU375.1
  21. Finite Element Analysis on Bonding Property of Reinforced Concrete,TU375

CLC: > Industrial Technology > Building Science > Building structure > Concrete structure,reinforced concrete structure > Reinforced concrete structures > Girder
© 2012 www.DissertationTopic.Net  Mobile