（北京金风科创风电设备有限公司， 北京 100176）

［摘要］以天润夏县二期49-5MW风电场工程1-5MW风电机组45m预制混凝土塔架为背景，研究预制混凝土塔架水平缝连接节点受力性能，通过ANSYS建模，分析了包含灌浆套筒、灌浆料及钢垫板等构造在内的水平缝连接节点的受力情况。研究表明：预制混凝土塔架结构水平截面没有出现拉应力，最大压应力为23-0MPa，出现在数值模型塔顶混凝土部位；钢材质预埋件的最大压应力为13-2MPa，远小于钢材的屈服强度，因此预埋件不会出现屈曲破坏现象；预制混凝土塔架结构最大变形为0-101mm，属于小变形范围；预制混凝土塔架单节塔筒部位及塔筒水平缝连接部位的应力变化及变形均满足协调性条件。

［关键词］风力发电； 预制混凝土塔架； 水平缝连接节点； 灌浆套筒； 灌浆料

中图分类号：TU279-7+44,TU375文献标识码：A文章编号：1002-848X(2016)14-0016-05

Research on mechanical behaviors of horizontal joint connection of prefabricated concrete towers

Song Huan, Cong Ou, Hao Huageng, Xu Yong

(Beijing Goldwind Science & Creation Windpower Equipment Co.,  Ltd.,  Beijing 100176, China)

Abstract:In order to study the mechanical behaviors of horizontal joint connection of prefabricated concrete towers, 45m prefabricated concrete towers of 1-5MW wind turbine generator system(WTGS) in Tianrun Xiaxian second-phrase 49-5MW wind power station project was taken as the background. ANSYS was used to establish finite element model and mechanical behaviors of horizontal joint connection were analyzed including grouting sleeve, grouting material and steel plate. Study shows that, there is no tensile stress in the horizontal sections of prefabricated concrete towers structure, and the maximum compressive stress is 23-0MPa which appears in the concrete of the top part of prefabricated concrete towers in the FEM. The maximum compressive stress of steel embedded parts is 13-2MPa which is far less than the yield strength of steel, so embedded parts do not appear buckling failure phenomenon. The maximum deformation of prefabricated concrete towers is 0-101mm which belongs to small deformation range. The stress change and deformation of single tower part and the horizontal joint connection part satisfy compatibility condition.

Keywords:wind power generation; prefabricated concrete towers; horizontal joint connection; grouting sleeve; grouting material

*国家高技术研究发展计划（863计划）课题实施方案（SS2012AA053203）。

作者简介：宋欢，硕士，工程师，Email：songhuan@goldwind.com.cn。