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Structural Engineering and Mechanics Volume 48, Number 6, December25 2013 , pages 791-807 DOI: https://doi.org/10.12989/sem.2013.48.6.791 |
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Preliminary design and structural responses of typical hybrid wind tower made of ultra high performance cementitious composites |
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Xiangguo Wu, Jing Yang and Issa B. Mpalla
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| Abstract | ||
| Ultra High Performance Cementitious Composites with compressive strength 200MPa (UHPCC-200) is proposed for the structural design of super high hybrid wind turbine tower to gain durability, ductility and high strength design objectives. The minimal wall thickness is analyzed using basic bending and compression theory and is modified by a toque influence coefficient. Two cases of wall thickness combination of middle and bottom segment including varied ratio and constant ratio are considered within typical wall thickness dimension. Using nonlinear finite element analysis, the effects of wall thickness combinations with varied and constant ratio and prestress on the structural stress and lateral displacement are calculated and analyzed. The design limitation of the segmental wall thickness combinations is recommended. | ||
| Key Words | ||
| hybrid tower; simulation; geometrical parameter; post tension; ultra high performance cementitious composites | ||
| Address | ||
| Xiangguo Wu, Issa B. Mpalla : Key Lab of Structures Dynamic Behavior and Control (Harbin Institute of Technology), Ministry of Education, Heilongjiang, Harbin, 150090, China; School of Civil Engineering, Harbin Institute of Technology, Heilongjiang, Harbin 150090, China Jing Yang : School of Architecture Engineering, Harbin Engineering University, Harbin 150001, China | ||