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The Application Research of High-level Steel Braced-Frame Structure System in High-intensity Area

Author: CuiHuiHui
Tutor: TaoZhong
School: Kunming University of Science and Technology
Course: Structural Engineering
Keywords: steel braced frame structure complex High-rise structure structure lectotype seismic response analysis SAP2000 and ETABS structural analysis and design software
CLC: TU973.13
Type: Master's thesis
Year: 2008
Downloads: 33
Quote: 1
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As one of basic structure of high-rise building system, braced frame system is being used more and more widely in high-rise steel structures and steel-concrete composite structure. As a main anti-lateral force of the braced frame system, the form of support layout has a huge impact on the force of entire structure. This is not only related to the structural characteristics and the basic force of the structure, but also has a bearing on the structure of the seismic performance and safety, in the earthquake zone. In high-intensity areas, research the layout of the support in the braced frame system to structure Impact and seismic behavior of the structure for the system’s application in the earthquake zone is of great significance.First we choose five different support layout——support cross two and four stories lay on side and inter-side, and cross-tenth support, and conduct modal analysis, spectral analysis of the role of the earthquake and flexible time history analysis on these five different models. We can get their respective advantages by contrast the basic dynamic characteristics and the earthquake response. Then select two type structures of the this program to conduct the elastic-plastic time analysis, and contrast to their component’s yield mechanism and elastic-plastic deformation performance under case of rare earthquake.According to the engineering requirement, lectotype program of high-rise steel structure in high earthquake intensity areas is researched, different division method of frame supported system is indicated. Selection methods of earthquake waves during frequently occurred and seldom occurred plastoelastic historical analysis is also researched. The influence of different selection on the earthquake waves to the elastic and plastoelastic historical analysis, proper waves are chose for the practical engineering. Finally, elastic historical analysis in frequently occurred earthquake and plastoelastic historical analysis in frequently occurred earthquake to the backup plan is preceded, the result offered a technical support to optimization the practical engineering and finding the weak spot of structure, it makes a great engineering value.

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CLC: > Industrial Technology > Building Science > High-rise buildings > Tall Building Structures > Structure type with the system > Steel
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