Dissertation > Excellent graduate degree dissertation topics show

Influence of Longitudinal Reinforcement Ratio on Shear Behavior of Simply Supported Beams with Web Reinforcement When Shear-Span Ratio is 1.5

Author: Frederick Raymond Bruce
Tutor: ZhangChuan
School: Chongqing University
Course: Structural Engineering
Keywords: Reinforced concrete simply supported beams with web reinforcements shear span ratio longitudinal reinforcement ratio shear span segment pure bending segment flexure cracks shear cracks flexure-shear cracks
CLC: TU755.3
Type: Master's thesis
Year: 2005
Downloads: 67
Quote: 0
Read: Download Dissertation

Abstract


Previous researches carried out by numerous scholars have suggested that the longitudinal steel ratio has influence on the shear strength resistance of the reinforced concrete members. A majority of previous studies on the effect of longitudinal reinforcement ratio on shear behavior of reinforced concrete members concerned about beams without web reinforcements and ultimate capacity, few gave detailed recording of development of cracking and failure process of RC beams with web reinforcements.This paper is a part of series of experimental study. Four simply supported beams with web reinforcements and different amount of longitudinal reinforcement were tested under static two-point symmetrical concentrated loading, with the shear-span ratio being kept around 1.5. The overall development process of cracking under shear and the effect of longitudinal reinforcement ratio on cracking, failure modes, strain distribution of reinforcements and ultimate capacity of RC beams with web reinforcements were investigated. The results of this experiment and a previous one done by Wang Wei were combined and compared with shearing resistance strength value predicted by The Chinese Code GB50010-2002 and the shearing strength value predicted by Response2000.At first, development of various cracks was carefully recorded and strains on both the longitudinal reinforcements and the stirrups were measured in detail, together with deflections of the beam. Furthermore, correlation between the measured strain profiles of the reinforcement and the observed cracking development of each specimen was pursued. Principal factors contributing to the cracking pattern and failure mode were figured out as a result Secondly, comparison of the tested results unveiled effect of various longitudinal reinforcement ratios on development of cracking, final failure mode, and ultimate capacity. Primary conclusions were thus drawn. Performance of beams under moment and shear may be different from that under pure moment or pure shear. Consequently, the shear-bending interaction relationships of specimens were investigated in this paper.The experiments showed that different amount of longitudinal reinforcement had a significant impact on formation of different cracks. In the specimen with the web reinforcement, the flexure crack first appears at the mid span in the pure bending segment. Along with load growth, flexure-shear inclined crack or the web shear

Related Dissertations

  1. Mechanic Analysis of Bridge Reinforcement with Mesh and Steel Fiber Reinforced Concrete and Construction Technology,U445.72
  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 > Construction > The project and the type of work > Concrete and reinforced concrete works > Reinforcement works
© 2012 www.DissertationTopic.Net  Mobile