Abstract
This paper presents the optimization process of intelligent design for truss structure of large temporary grandstands. The vertical dynamic magnification coefficient is obtained based on the data of human jumping load tests. The change rule of the structural strength and stiffness caused by different diagonal brace arrangements of two dimensional grandstand truss structure is analyzed comparatively by using ABAQUS. The influence of diagonal brace arrangement on temporary grandstand structural safety performance is summed up. Safety principles of diagonal brace arrangement are suggested, which make braces more efficient. Through the analysis of structural nonlinear stability, the rule that initial defects influence on structural stability is approximately to linear is achieved. When the defect amplitude is 26mm, ultimate bearing capacity is decreased by 30.3%. The results of the study have important theoretical and practical significance for the automatic design and construction of large temporary structure.
| Original language | English |
|---|---|
| Pages (from-to) | 685-690 |
| Number of pages | 6 |
| Journal | Yingyong Lixue Xuebao/Chinese Journal of Applied Mechanics |
| Volume | 31 |
| Issue number | 5 |
| DOIs | |
| State | Published - 15 Oct 2014 |
| Externally published | Yes |
Keywords
- Initial imperfection
- Large temporary grandstand
- Structural buckling
- Truss structure optimization design
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