Dissertation > Excellent graduate degree dissertation topics show

The Study on the Earthquake Response of Parallel Composite Isolation System

Author: PeiJunJie
Tutor: YangShuBiao
School: Hebei University of Engineering
Course: Structural Engineering
Keywords: Composite isolation Shaking table test The finite element analysis Structure characteristics Site category
CLC: TU352.12
Type: Master's thesis
Year: 2011
Downloads: 38
Quote: 2
Read: Download Dissertation

Abstract


The composite isolation system is composed of laminated rubber isolation bearings and friction-sliding isolation bearings according to a certain proportion. In the earthquake, the laminated rubber isolation bearings can extend the structural natural periods and provide reset force. Friction-sliding isolation bearings can provide friction to absorb the earthquake energy. The composite isolation system makes the complementary strengths of two traditional bearings.In this paper ,we firstly carried out the shaking table test of the composite isolation structure model,obtained some useful results, then simulated the test by SAP2000 finite element software. By Setting the software parameters,the software analysis and experimental results are as close as possible. It verifies the correctness of modeling methods and parameter settings of software. And because of the limitations of shaking table tests, we made the model of actual composite isolation structure by applying the same modeling methods and parameters settings.In the establishment of model with SAP2000, in order to consider the impact of structural characteristics to isolation layer, different layer structures were established. In the time-history analysis with the software, we considered the impact of different site classification on isolation layer by different characteristics of seismic waves, researched a reasonable range of the friction pressure by adjusting the arrangement of the isolation layer, analyzed the performance of isolation layer through the observation of composite isolation structure displacement, basal shear ,and concluded reasonable decorate plan of the composite isolation structure which is insensitive to structural characteristics and site classification.With six floors frame structure as an example, we established the traditional anti-seismic structure model, pure rubber isolation structure model and composite base-isolated structure model with SAP2000 , and made the time-history analysis. The analysis indicates that the earthquake response of the isolation layer and the upper structure of composite isolation structure is significantly lower .The composite base-isolated structure has significant effect of seismic resistance and seismic isolation.To sum up, the composite base-isolated structure with reasonable arrangement isolation layer, has good isolation and shock absorption effect, and is not sensitive to the influence of external factors, and has certain advantages compared to pure rubber isolation structure.

Related Dissertations

  1. Research on the Mainframe System of Powder Mixed EDM and the Craft Experiment,TG661
  2. EDM Electrode Wear Mechanism and Control Research,TG661
  3. Finite Element Analysis and Structure Optimal Design for Combined Seal at Normal Temperature and Low Temperature,TH136
  4. Study on the Design and Biomechanical Behaviors of Individualized Artificial Knee Joint,R318.1
  5. Design of Testing Equipment for Electronic Products,TN06
  6. Multi-pin Internal Fixation of Calcaneal Fractures in Finite Element Analysis,R687.3
  7. Airborne radar antenna pedestal rapid design systems research and development,TN959.73
  8. Sham hose drum drive means and hydraulic system of the structure,TE973
  9. The magnetorheological damper mechanical properties and Gun Recoil,TB535.1
  10. Nonlinear Structural Dynamics Analysis and Optimization Design on Naval Gun Driver,TJ391
  11. Design and Analysis of Automatic Steel Pipes Butt Tool,U673.38
  12. Analysis on Unloading of Large Span Steel Structures and Research on Its Mechanical Analysis,TU391
  13. Study on Virtual Simulation Technology of Safety Valves Based on SolidWorks,TH134
  14. Optimized Design of New Style Mast of ZJ50L Drill Rig,TE923
  15. The Structure Design and Finite Element Analysis for the Light Hydraulic Support with Auxiliary Beam,TD355.4
  16. Analysis on Static-dynamic and Fatigue Characteristics of Metallurgical Overhead Traveling Crane,TH215
  17. Research of Deep Excavation Construction Process for Nearby Subway Section Action,TU753
  18. Shaking Table Test Study on the Seismic Performance of the 1/2 Model of the Energy–saving Block & Invisible Multi-ribbed Frame Structure,TU352.11
  19. Assessment of Shenyang 2nd Ring Road Over-line Continuous Beam Bridge Safety Based on the Test,U447
  20. Simulation of the Clinching Process Using FEA Method with Steel and Aluminum Alloy Sheets for Automotive Sunroof Frame,U463.83
  21. Dynamic Designanalysis and Optimization of Gantry Crane Girder Truss,TH213.5

CLC: > Industrial Technology > Building Science > Building structure > Special Structure > Anti - shock structure,disaster prevention structures > Shock, isolation, and explosion-proof structure > Isolated structure
© 2012 www.DissertationTopic.Net  Mobile