自密实混凝土-钢管组合结构风电塔架模型静力试验

A new type of self-compacting concrete filled steel tubular tower structure model was designed to study the deformation law of model.It product the theoretical basis for the real large composite structure of the tower.Taking the small model as the test object,an economical and reasonable structural design scheme is obtained through the optimization design of the concrete-filled steel tube composite structure and the strength,stiffness and stability of the scale model are analyzed.The inner and outer cone of the model is made of 1.0 mm thick steel plate,and self-compacting concrete is poured into the interlayer.The test suggests that the strain on the top of the specimen increases under horizontal force,and varies sharply on the tensile side at the bottom and the tensile strain is far greater than the compressive stain.When the load is greater than the most unfavorable condition 3.345 kN,the structure does not yield and meet the requirements of code JBT10300-2001.The scheme can be used for the production of large composite structure towers.