Structural Performance of Thin-Walled Twisted Box-Section Structure
Abstract
:1. Introduction
2. Dome Model
3. Finite Element Analysis of the Twisted Box-Section Model
3.1. Finite Element Model
3.2. Numerical Results
3.3. Comparison of Experimental and Numerical Results
4. Parametric Analysis
4.1. Thickness of Longitudinal Stiffening Rib, Tls
- Deformation
- 2.
- Stress
- 3.
- Failure mode
- 4.
- Strain and ultimate capacity
4.2. Thickness of Diaphragm, Td
- Deformation
- 2.
- Plastic strain and ultimate capacity
4.3. Thickness of Web Tw
- Deformation
- 2.
- Failure mode
- 3.
- Plastic strain and ultimate capacity
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Structure | Height (mm) | Arch Curvature (mm−1) | Central Angle (Corresponds to Arch Curvature) | Thin-Walled Twisted Box Section Dimension (mm) | Material |
---|---|---|---|---|---|
Ring beam | - | 1.043 × 10−4 | 360° | 1000 × 1000 × 16 | Q235 |
First arch layer | 1500 | 1.675 × 10−4 | 120° | 1000 × 1000 × 16 | |
Second arch layer | 3200 | 1.163 × 10−4 | 130° | 1000 × 1000 × 16 | |
Third arch layer | 3200 | 1.965 × 10−4 | 150° | 1000 × 1000 × 16 | |
Fourth arch layer | 13,600 | 1.623 × 10−4 | 170° | 1000 × 1000 × 20 |
Loading Point | Load Magnitude, P (kN) |
---|---|
1 | 11.25 |
2 | 11.25 |
3 | 11.25 |
4 | 42.8 |
5 | 42.8 |
6 | 4 |
7 | 4 |
8 | 128.7 |
9 | 128.7 |
10 | 34.51 |
11 | 34.51 |
12 | 62.33 |
13 | 62.33 |
Component | Location | Maximal Plastic Strain |
---|---|---|
Web | Node zone | 1.6 × 10−2 |
Middle and lower part of the lower arch | 4.9 × 10−3 | |
Longitudinal stiffening rib | Node zone | 4.0 × 10−3 |
Middle and lower part of the lower arch | 3.5 × 10−3 | |
Diaphragm | Node zone | 4.46 × 10−3 |
Middle and lower part of the lower arch | 2.25 × 10−3 | |
Web | Node zone | 1.6 × 10−2 |
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Wang, S.; Wang, Z.; Ping, C.; Wang, X.; Wu, H.; Feng, J.; Cai, J. Structural Performance of Thin-Walled Twisted Box-Section Structure. Buildings 2022, 12, 12. https://doi.org/10.3390/buildings12010012
Wang S, Wang Z, Ping C, Wang X, Wu H, Feng J, Cai J. Structural Performance of Thin-Walled Twisted Box-Section Structure. Buildings. 2022; 12(1):12. https://doi.org/10.3390/buildings12010012
Chicago/Turabian StyleWang, Shijun, Zan Wang, Chang Ping, Xing Wang, Huiying Wu, Jian Feng, and Jianguo Cai. 2022. "Structural Performance of Thin-Walled Twisted Box-Section Structure" Buildings 12, no. 1: 12. https://doi.org/10.3390/buildings12010012