Dissertation > Excellent graduate degree dissertation topics show

Performance-Based Fire-Resistant Design Method for Long-span Steel Structure

Author: GuoSheng
Tutor: ZhaoJinCheng；ShiJianYong
School: Shanghai Jiaotong University
Course: Structural Engineering
Keywords: long-span building fire performance-based fire-resistant design fire scenarios design fire temperature field single layer spherical reticulated shell nonlinear analysis
CLC: TU352.5
Type: Master's thesis
Year: 2012
Downloads: 112
Quote: 0
Read: Download Dissertation

Abstract


Long-span buildings are widely used because of their vast internal space, magnificent and beautiful architectural configuration. But the structure of long-span buildings is complicated with heavy fire load, and fire in the buildings spreads fast and is difficult to be put out. Also, the fire-resistance property of steel is poor. These reasons are prone to cause severe losses to human lives and assets. At present, the recipe-like fire-resistant design method based on the modern codes is mainly used in fire-resistant research of structure, but it has biggish limitation in practical structure fire-resistant design because it’s short of scientific nature, effectiveness and economical efficiency. Performance-based fire-resistant design method combines targets of fire safety, fire damage and design, and is appropriate for the buildings which exceed the request of modern codes. Therefore, it is of vital importance in theory and engineering practice to further conduct research of performance-based fire-resistant design method for long-span steel structure.With combining theoretical analysis and numerical simulation, performance-based fire-resistant design method for long-span steel structure is discussed systematically in this paper. The main research work covered in this paper includes the followings:(1) Research of large-space buildings’fire scenarios design methods. With introducing event tree model of fire scenario based on probability and characteristics of large-space building fire, design method of large-space buildings’fire scenarios is summarized. Fire scenarios of actual project case are designed by FDS.(2) Analysis of large-space buildings’fire temperature field. With the method based on field model, various kinds of influencing factors which affect large-space buildings’fire temperature field are analyzed by FDS. Then temperature of steel structural members is calculated based on the change law.(3) Parameters analysis of reticulated shell structure’s stability bearing capacity in fire. A nonlinear analysis of single layer spherical reticulated shell structure is carried out by ANSYS. The influencing parameters of structure’s stability bearing capacity are discussed. The change law of bearing capacity is summarized.(4) Parameters analysis of reticulated shell structure’s critical temperature and fire endurance in fire. Through following and analyzing the failure path of structural members with the structural members’elastic-plastic failure criterion, the change law of critical temperature and fire endurance is confirmed. Influencing factors of fire-resistant property are summarized.

Related Dissertations

  1. Analysis and Study of Abutment Stability in Concrete High Arch Dam by Three-Dimensional Nonlinear Finite Element Method,TV642.4
  2. Reinforced Concrete Beam Flexural Capacity Theory in High Temperature,TU375
  3. The Aseismatic Performance Analysis of a Frame,TU352.11
  4. The Research on Anchor Plile Installment and Load-bearing Capacity of Workover Rig,TE923
  5. Study on Deepwater Riser Vibration Characteristic,TE952
  6. Stability Behavior of Large Tapered Steel Tanks Under Differential Settlement,TE972
  7. Behaviour Study of Shear Connector in Prestressed Concrete Box Girder with Corrugated Steel Webs,U448.213
  8. A Study of Pre-stress Strengthening T-shape Beam Carrying Capability Based on Model Test,U441
  9. Study on Anti-seismic Behavior of Main Machine Hall in Conventional Island Based on Pbsd,TU352.11
  10. The CFST column - flange weaken steel beam bulkhead through node performance study,TU398.9
  11. Nonlinear Analysis on Seismic Behavior of Reinforced Concrete Structure with Special-Shaped Columns,TU375.4
  12. Experimental Research and Theory Analysis on Seismic Behavior of Multi-Storey Reinforced Concrete Frame Structure with Masonry Filler Wall,TU352.11
  13. The Mechanical Performance of SRC Columns during the Whole Period of Standard Fire,TU398.9
  14. Theoretical Study on Mechanics Performance and Design of Energy-saving Block and Invisible Multi-ribbed Frame Wall,TU364
  15. Research and Model Test of Shear Connector in Prestressed Concrete Box Girder with Corrugated Steel Webs,U446.1
  16. Stability Analysis of Prestressed Concrete Continuous Rigid Frame Bridge with Tall Pier and Large Span,U441
  17. Assessment of Progressive Collapse Potential of Multi-storey Reinforced Concrete Frames,TU375.4
  18. Influence of the Local and Global Interactive Buckling on the Ultimate Capacity of Cold-formed C Steel Member Subjected to Axial Compression,TU392.1
  19. Research of Linear and Nonlinear Methods of Heart Rate Variability for Assessment of Automatic Nervous System during General Anesthesia,R614
  20. Finite Element Analysis of the Cross-type Joint of Steel Frame Structure Based on the Panel Zone Model,TU391
  21. The Checking Study on Shear Design of Column of the Structure in Two-way Earthquake,TU311.3

CLC: > Industrial Technology > Building Science > Building structure > Special Structure > Anti - shock structure,disaster prevention structures > The structure of the fire ( fire resistance )
© 2012 www.DissertationTopic.Net  Mobile