| In this new century, wind power attracts more and more notice in the energyindustry of its cleanness and renewability. The installed capacity for individual windturbines has been growing, which correspond to higher wind turbine tower. Comparedto traditional steel tube or concrete structures, pre-stressed concrete-steel hybrid windturbine tower is upgraded to meet various design requirements without delayingconstruction process. In the absence of relevant research in China, a completely newwind turbine is designed with limited reference to foreign technical standard. In thispaper, a new method for load calculation was introduced and testified by model testand finite element analysis and is aimed to provide as a reference for futureimplementation of such wind turbine.The following aspects are mainly discussed.1ã€Based on a practical construction, a simplified calculation method for windtower loads and section optimization design is presented, which is applicable topractical design;2ã€Scaled pre-stressed concrete-steel hybrid wind turbine tower specimen based onprototype were fabricated and tested in Hunan University. The mechanical propertiesof prototype can be obtained through the experimental data of scaled specimen withanalysis of the overall and local stress performances, which also provided as guidancein design of wind turbine tower.3ã€Pre-stressed concrete-steel hybrid wind turbine tower was analyzed by finiteelement analysis software (ABAQUS) in order to simulate the performance of differentparts of the tower.4ã€The studies on the joint of the pre-stressed concrete-steel hybrid wind turbinetower are few throughout the world. In this article,9different types of joints wereanalyzed with assistance of the ABAQUS. The distribution and amplitude index of thetensile stress of concrete joints were used for evaluation so the optimal scheme can bechosen eventually.5ã€Further study was proposed for the improvement in wind turbine constructiontechnology. |
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