Dissertation > Excellent graduate degree dissertation topics show

Research on the Seismic Performance of Steel Structure with Buckling Restrained Brace

Author: HuShuJun
Tutor: XuQiGong
School: South China University of Technology
Course: Disaster Prevention and Reduction Engineering and Protective Engineering
Keywords: Buckling restrained braces Seismic performance Damp Nonlinear static analysis Performance points
CLC: TU391
Type: Master's thesis
Year: 2011
Downloads: 96
Quote: 0
Read: Download Dissertation

Abstract


Have good ductility and energy dissipation capacity in the seismic design of the framework structure of pure frame structure, but the structure is softer, the smaller the lateral stiffness; common support frame stiffness in the elastic stage, but the ductility and energy dissipation capacity in earthquake and wind loads, support for compression easy buckling structural loss of carrying capacity and destruction. Buckling-Restrained support (BRB) to overcome the shortcomings of traditional support, but not buckling under axial compression and tension effects yield good hysteretic behavior. Through research and analysis of buckling restrained braces framework structure, not only to enhance the stiffness of the frame, but also to improve the ductility of the framework for a good, supporting the first yield under rare earthquake, to protect the main structure is not destroyed, and improve the overall seismic performance of the structure. Theoretical analysis of the seismic performance of buckling restrained braced steel frame advantage Firstly buckling restrained braces basic theory and its method of equivalent stiffness and damping of the elastic and elastic-plastic state, according to China's steel specification combined with American steel The structural specification proposes a supporting beam-column joints connected calculated. According to the specification of requirements between the lateral stiffness of each floor, required to identify each floor buckling restrained braces sectional size of a buckling restrained support section estimation method in steel frame. Secondly, process analysis using the Midas software, ordinary braced steel frames and buckling restrained braced steel frame. Take three for analysis model seismic waves, in multi earthquake and rare earthquake displacement angle between two steel frame base shear, top floor displacement layer and the underlying support axial force compared draw buckling restrained braced steel frame the efficiency. Then analyzed by five different support arrangement to support seismic performance, to draw reasonable supporting arranged to improve the lateral displacement of the lateral stiffness of the structure and control structure in the form of. General support, buckling restrained braces and mixed support in the amount of steel framework to achieve the same performance and base shear contrast, and change with the change of seismic intensity, came to the conclusion the mixed support arrangement seismic performance and economic benefits. Finally, two steel frames nonlinear static (Pushover analysis). General support and buckling restrained performance support in a state of compression, according FEMA356 define the state of the two supporting tension and compression plastic hinge; buckling restrained braces rare earthquake energy absorbed into the structural damping increases structural damping ratio, buckling restrained braces in the seismic performance. The comparison of the two structures in the performance of the multi earthquake and rare earthquake, according to the framework of the two steels performance point at the plastic hinge of the hinge order to determine whether the expected designed to.

Related Dissertations

  1. Common TCM syndrome and serum homocysteine ??and diastolic function relationships of the newly diagnosed patients with type 2 diabetes,R259
  2. Mechanical Property Analysis on Concrete Short Columns with Strengthened Style Hoop,TU375.1
  3. Finite Element Analysis of Seismic Performance of Rc Beams Composite Strengthened with CFRP and Steel Plate,TU352.11
  4. Lancang steel pipe reinforced with concrete arch bridge seismic performance analysis,U442.55
  5. The dwarf tower cable-stayed bridge seismic response analysis and mitigation and isolation,U442.55
  6. Seismic Performance Analysis of the Concrete Curved Girder Bridge Based on Analytical Method of PUSH-OVER,U442.55
  7. Static and Dynamical Characteristic Analysis and Experimental Investigation on Large Span Half-through CFST Arch Bridges,U441.3
  8. Study on Seismic Performance Analysis of the Long-Span Structure for Coal-Conveyer Gallery,U442.55
  9. Based on Response Spectrum Finite Element Analysis of Dynamic Characteristics and Seismic Response for Cable-stayed Bridge,U441.3
  10. Clinical Study on Treatment of Nonliquefaction of Semen Which is Damp Heat with Blood Stasis Syndrome by Shengjingcuhuatang,R256.56
  11. The Research of the Influence of Du-Moxibustion Across Ginger and Garlic to ESR and CRP in Treating as with Cold-damp Blocking Syndrome,R246
  12. Xiaokuiling Yuyang square ( enema ) treatment of ulcerative colitis damp clinical study,R259
  13. Yinchen Wuling Powder’s Increasing Herbal Medicine Through Colon Dialysis to Treat Chronic for Hepatitis B Syndrome of Dampness-heat Stagnating in Spleen Clinical Observation,R259
  14. Damping properties of ceramic matrix composites research,TB332
  15. Finite Element Analysis of RC Frame Structure of Special-shaped Column with Short-leg Shear Wall,TU375.4
  16. The Experimental Research of Shaking Table on Earthquake Simulation of the Suspended Mass System Structure,TU317
  17. Larry C steel roof of the seismic performance of,TU392.5
  18. Anti-Seismic Researches on A New Type of Light Guage Steel Framed Residences,TU352.11
  19. A Method of Seismic Performance Assessment for the Frame-core Tube Structure Based on Damage Factors of Components,TU352.11
  20. Experimental Research on Seismic Behavior of Frame Column with Construction Joint,TU352.11
  21. Senior eccentrically braced steel frame structure seismic performance analysis,TU973.31

CLC: > Industrial Technology > Building Science > Building structure > Metal structures > Steel
© 2012 www.DissertationTopic.Net  Mobile