Dissertation > Excellent graduate degree dissertation topics show

Experimental Study on Seismic Behavior of Steel Plate Reinforced Concrete Coupling Beams

Author: ZhangGang
Tutor: ZhaoZuoZhou
School: Tsinghua University
Course: Civil Engineering
Keywords: Seismic design Steel plate reinforced coupling beam Shear resisting capacity
CLC: TU398.9
Type: Master's thesis
Year: 2005
Downloads: 158
Quote: 2
Read: Download Dissertation

Abstract


As an important energy dissipation component in coupled shear wall structuresand the structure system composed by coupled shear walls, the strength, ductility andenergy dissipation capacity of the coupling beams have significant influence on theperformance of the whole structure system under earthquake excitation. In order toimprove the seismic performance, especially to enhance the shear resisting capacity ofreinforced concrete coupling beams, a new type of coupling beam, named steel platereinforced concrete coupling beams (SPRCCB), embedding one or several steel platesalone the beam span, was investigated in this study.In this paper, 6 specimens, 4 with a span-depth ratio of 1.5 and 2 with aspan-depth ratio of 2.5, were tested under cyclic loads. The test results show that theSPRCCB possess higher strength, better ductility and energy dissipation capacity thanthe conventionally reinforced coupling beams. Steel plate can prevent the beam fromflexural sliding failure. Flexural failure, flexural shear failure and shear failure are thethree types of possible failure modes of SPRCCBs. Test results show that beforeyielding of the longitudinal bars, the beam wall interface remains as a plane, but afterthat, such conclusion was not always true. As the appearance of flexural shear crack,the zero strain point of longitudes gradually moves towards compression zone,causing tension-lag in the beam span. Based on the test results, analysis was carriedout on the bending moment, shear force and axial tension of steel plate and the shearforce in stirrups of each specimen under different displacement level. Based on theanalysis results, a modified formula was put forward to calculate the shear strength ofSPRCCB. The results also suggest that in order to achieve the advantage of steel platereinforcement, the plate should be fully anchored in wall piers and that the two linesof deformed bars welded on both sides of steel plate is effective in anchoring plates insurrounding concrete.The paper also includes the non-linear finite element analysis (FEA) of two testspecimens, with span-depth ratio of 1.5 and 2.5 respectively, using MSC.MARC. TheFEA results, which agree with the test results, show that the shear resistingmechanism of the beam with span-depth ratio of 1.5 and 2.5 are different: arch actionis significant in beams with smaller span-depth ratio. The paper also investigates theinfluencing factors of the shear strength of SPRCCB including the steel platereinforcement ratio, thickness, depth and the depth-thickness ratio of the steel plate.From the results of the parameter study, the following conclusions can be drawn: theshear strength of SPRCCB increases with the steel plate reinforcement ratio;theincrease of thickness and depth of the steel plate will elevate the shear strength ofSPRCCB and the increase of strength will be more obvious when the depth of thesteel plate is larger. To two SPRCCBs with same ratio of steel plate reinforcement, theshear strength of the one with larger depth-thickness ratio will be larger. Based on theanalysis results, some design suggestions are proposed.

Related Dissertations

  1. Multi-storey Steel Structure Design Method Based on Optimum Lateral Stiffness Distribution,TU973.13
  2. The high-speed railway bridge performance - based seismic design method,U442.55
  3. Comparative Research of Wind Load, Seismic Action, Load and Effect Combination between European and Chinese Codes and Development of European Version SATWE,TU312.1
  4. Research on High-rise Frame-shear Wall’s Performance-based Seismic,TU398.2
  5. Inelastic Dynamic Analysis of Single-span Reinforced Concrete Multi-storey Main Building,TU313
  6. Study Structure Design of a Windmill-shaped Planar Tall Building,TU973.3
  7. Study and Application of a New Type SMA Damper on the Performance Based Seismic Design,TU352.11
  8. Research on the Earthquake Spectra for Site Class Ⅱ,P315.9
  9. Research on Horizontal Seismic Action of Buildings Structure Considering Soil-Structure Interaction,TU435
  10. Research on Prestressed Concrete Structure Design of Harbin West Railway Station,TU378.4
  11. Nonlinear Analysis on Seismic Behavior of Reinforced Concrete Structure with Special-Shaped Columns,TU375.4
  12. The Seismic Behaviour Factor of Single Sway Rod Eccentrically Braced Steel Frame,TU391
  13. The Energy Dissipation Principles and Seismic Design Method of Steel Beam’s High-strength Bolted Splice in Steel Frames,TU391
  14. Sectional Analysis and Seismic Damage Performance Design for FRP-retrofitted Reinforced Concrete Columns,TU375
  15. Performance-based Seismic Design of Eccentrically Braced Steel Frame Using YPS,TU391
  16. Investigations of the Hysteresis Performance of the Steel Frames Infilled with Composite Panels,TU391
  17. High-speed rail span steel truss girder cable-stayed bridge seismic response analysis of research and damping,U441.3
  18. Study on Theory & Technology of Bio-Slope Engineering for Wenchuan Earthquake Area,U417.1
  19. Evaluation of Characteristic Parameters of Earthquake Records and the Influence on the Seismic Design,TU352.11
  20. Seismic Analysis of the Radioactive Waste Geological Repository Structure,TU352.11
  21. Study on the Mechanical Behaviors of Semi-rigid T-stub Beam-to-column Connection Under Cyclic Load,TU391

CLC: > Industrial Technology > Building Science > Building structure > Composite structure > Other composite structures
© 2012 www.DissertationTopic.Net  Mobile