Dissertation > Excellent graduate degree dissertation topics show

External steel - concrete composite experimental and theoretical study of truss work performance

Author: GuYunLong
Tutor: WangHaiBo
School: Central South University
Course: Civil Engineering
Keywords: steel-concrete composite truss joint monotonous mechanical behavior experiments the contrastive analysis parametric analysis
CLC: TU311.3
Type: Master's thesis
Year: 2011
Downloads: 31
Quote: 0
Read: Download Dissertation

Abstract


Steel-concrete composite truss structure is a new structure applied in recent years. Its joint is the most important component and it is also the stress and load transfer centre of the truss. The performance of the joint direct determines the practicability and reliability of the whole truss structure. The joint structure in this thesis belongs to the circumscribed steel-concrete composite truss joint, which links the reinforced concrete chord member with steel web members by the gusset. This joint enables the truss structure to work through supporting the horizontal shear and transferring the trust of the chord member to the web member. The major content and findings of this thesis are listed as follows:(1) Two groups of experiments have been carried on to test the monotonous mechanical behavior of the circumscribed steel-concrete composite truss joint model with 1/3 scale. With the strain gauge and displacement measurement equipment on the sample, the experiments have yielded the stress strain of each parts and the load-displacement curve of the sample. Besides, the deformation situation, fracture strike and destruction forms of the joint have been obtained from the observation during these experiments. With these acquired data, a simple mechanical analysis of the samples is finished. It was concluded that the samples show an obvious sign before damage and have good ductility with the maximum bearing capacity of 260 T to 300T.(2) Based on the experiments above, the thesis also has made a nonlinear analysis with the FEA program ABAQUS. Through the finite element analysis of the steel-concrete composite truss joint, the load-displacement curve, deformation pattern and stress map can be acquired. By comparing the analysis conclusion with the experiments results, it turns out that they are accordant with each other.(3) In order to research each parameter’s effect on the joint, a paramedic analysis with the FEA program has been carried out on the basis of the previous studies. This analysis tries to test the effect of four parameters which are the concrete intensity, the diameter of the PBL connecting key, the gusset plate thickness and the steel strength. According to the analysis, it is found that the steel strength has a great influence on the sample’s maximum bearing capacity while the other three have little impact. As for other performance indicators of the joint components, for instance the maximum stress of the gusset, maximum stress of the steel support and other, they vary monotonically with the change of the parameters.

Related Dissertations

  1. Research of Calculation Method on Self-anchored Suspencion and Cable-stayed Bridge with Three Towers,U448.25
  2. Flexural Strength and Ductility of Hybrid Girders Fabricated from High Performance Steel,U448.36
  3. Fire Performance and Design Method of Partial Encaed Concrete (PEC) Columns,TU398.9
  4. Analysis on the Mechanical Behavior of Steel Plate-Concrete Composite Beam,TU398.9
  5. Static Stability Analysis of Long-span Hybrid Girde Cable-Stayed Bridge,U441
  6. Experimental Study on Seismic Behavior of Abnormal Reinforced Concrete Frame Interior Joint with Abrupt Beam Section,TU398.9
  7. The Mechanical Behavior of Gusset Plate to Chs X-joints and the Bending Performance of X-type Tubular Joints,TU391
  8. The Stability Analysis for the Lift-basket Concrete Filled Steel Tubular (CFST) Arch Bridge,U448.22
  9. Negative Transfer of Mother Tongue on Non-English Majors’ Writing,H319
  10. Error Analysis of Students’ English Writing in Vocational College,H319
  11. A Contrastive Analysis of Distributional Characteristics of Anaphora in Chinese and English Discourses,H146
  12. An Investigation on Chinese Students’ Learning of English Transferred Negation at Zhumadian No.1 Senior Middle School,G633.41
  13. Float in France laying of submarine pipelines Key Issues,TE973
  14. An Error Analysis of Students’ Using English Passives in Vocational College English Learning,H319
  15. A Contrastive Analysis of Basketball Coaches’ Current Situation in Municipal Sports School of Three Northeast Provinces,G841
  16. A Contrastive Analysis of English and Chinese Talk Show from the Perspective of Burke’s Theory of New Rhetoric,G222.2
  17. Appraisal Theory-Based Contrastive Analysis of Public Service Advertising and Commercial Advertising,H315
  18. Seismic Responses Analysis of Long-span Hybrid Girder Single Tower Cable-stayed Bridge and Study on the Seismic Measure,U448.27
  19. Span continuous rigid frame bridge static simulation and design parameters impact analysis,U448.23
  20. Parametric Analysis on Compressive Load Capacity of Stiffened Welded Hollow Spherical Joints,TU391
  21. A Reactive Optimization Model Considering Load Uncertainty,TM714

CLC: > Industrial Technology > Building Science > Building structure > Structure theory to calculate > Structural Mechanics > Structural Dynamics
© 2012 www.DissertationTopic.Net  Mobile