Dissertation > Excellent graduate degree dissertation topics show

Engineering Research of Tensioned Membrane Structures

Author: XuQiGong
Tutor: HanDaJian
School: South China University of Technology
Course: Structural Engineering
Keywords: tensioned membrane structure force density method form finding static analysis cutting compensation membrane stresses
CLC: TU38
Type: PhD thesis
Year: 2003
Downloads: 294
Quote: 17
Read: Download Dissertation

Abstract


Tensioned membrane structure, as a current special structure, has been developed for more than sixty years since the 40’s of the 20th century and being widely applied to large space structures such as stadiums, gymnasiums, etc. In this work, the theoretical and engineering studies of tensioned membrane structures are conducted .The main subjects are summarized as follows:In theoretical study:1.Force density method of form-finding analysis is improved through introducing T-elements. In this method, the element-joint topological matrix including T-element is established and the equilibrium equations of both T-element joint and standard joint are unified. The overall form-finding formulas of force-density method are then deduced. Using these formulas and their computer program, membrane structure with cables, cable boundaries or fixed boundaries can be analyzed.2.Formulations for static analysis of membrane structure under external loading are given. In these formulations a cable-net model similar to that of form-finding analysis of force density method is used to simulate the continuous membrane structure. The equilibrium equations of static analysis of tensioned membrane structure and the stiffness matrix for Newton Method are deduced on the basis of the cable-net model.3.The formula of calculating the shrink compensation of a membrane structure is proposed. To determine the compensation value is the major part of cutting analysis and is one of main problems in the research field of membrane structure. Firstly the formula of modifying coordinates of flattened clothes is deduced. With two-step method, the double-curved surface is flattened and the initial stress is released. Then, the influence factors such as prestress, nonlinear behavior of membrane materials and creep on compensation value are studied. And also the coupling of compensation value and interior force of the loaded membrane structure is analyzed. From the engineering perspective, the formula of compensation value is proposed and established.4.Static analysis for formed membrane structure under external loadings. The pre-stress value of formed membrane structure based on cutting pattern could be different from the pre-stress value designed by form-finding, because of the

Related Dissertations

  1. Study on Springback of High-Strength Steel Stamping,TG386
  2. EDM Electrode Wear Mechanism and Control Research,TG661
  3. Design and Application of Scope Anti-Shake System,TH743
  4. Compensation Methods of Different Speech Coding for Speaker Recognition,TN912.34
  5. Study of Data Generation for MMW Radar IF Simulated Signal Source,TN955
  6. The Application of Fuzzy Control and Neural Network in Planar Double Inverted Pendulum,TP273.4
  7. Design and Implementation of Space Rendezvous and Docking Linear Movement Simulator Control System,TP273
  8. The Research of Ecological Compensation on the Restoration of Water Quantity in the Man-Made Seasonal Rivers,X143
  9. Resource Collection and Vegetative Propagation Technique Studies on Ilex Species,S184
  10. The Historical Investigate of Gu Tian Reservoir Region Migration,D632.4
  11. Ceramic Theramal Sterss Cleaving Technology Based on Laser,TQ174.62
  12. Nature Reserves in China Ecological Compensation System,X36
  13. Key Technologies of Modeling and Simulation in Virtual Surgery,TP391.41
  14. The Research of Credit Construction in the Problem of National Student Loan,G647.5
  15. Study on the Environmental Cost on the Basis of Environmental Systems Reproduction Theory,F406.72
  16. The Responsibility of Ecological Diversity,D922.68
  17. Research on Power Supply of Contactless Power Transfer System,TM46
  18. Root Resorption of Upper Centre Incisor with Compensation in Skeletal Class Ⅱ and Ⅲ Malocclusions,R783.5
  19. Short-Range Wireless Localization Algorithms for Internet of Things,TN929.5
  20. Industrial injury insurance claims and personal injury compensation Concurrence Study,D923;D922.182.3
  21. Qingdao Industrial Atmospheric Pollution Prevention System,X51

CLC: > Industrial Technology > Building Science > Building structure > Non-metallic structure
© 2012 www.DissertationTopic.Net  Mobile