D0I:10.13374.issn1001-053x.2013.07.019 第35卷第7期 北京科技大学学报 Vol.35 No.7 2013年7月 Journal of University of Science and Technology Beijing Jul.2013 在役风电塔结构的最不利风一震组合作用响应分析 陈阳)，宋波)☒，韦伟2)，周治2) 1)北京科技大学土木与环境工程学院，北京1000832)中国因电集团公司南方分公司，广州510623 ②☒通信作者，E-mail:songbo@ces.ustb.edu.cn 摘要因风电塔整体结构不沿轴向对称，为明确该结构的受力特性和保证结构安全，采用国外及国内两种数值计算方 法对塔筒结构进行了研究，分析风荷载作用下、地震动作用下和风-地震组合作用下的塔体结构的受力差异.在此基础上 对塔筒结构进行风-地震组合作用下的不同地震动输入方向的动力响应分析进行研究.结果指出了该状态下对塔筒结构 最不利的地震动输入方向以及该作用条件下塔筒结构的薄弱位置为塔筒开口位置. 关键词风电：塔：地震波：风应力：动力响应 分类号TU33+3 Dynamic response analysis on the structure of wind power towers under the most unfavorable wind-earthquake combination action CHEN Yang),SONG Bo)☒，WEI Wei2),ZHOU Zhi2) 1)School of Civil and Environmental Engineering,University of Science and Technology Beijing,Beijing 100083,China 2)Guodian Corporation South Branch China,Guangzhou 510623,China Corresponding author,E-mail:songboaces.ustb.edu.cn ABSTRACT With the increasing of wind power generation facilities,structure safety is particularly important in the service of wind power towers.Wind power towers are a typical top-heavy structure which is similar to a kind of thin-wall cylindrical structure.The supporting structure of a wind power tower is forced under the pressure of the upper engine room,rotor and blades,the side of the tower is thrust by ocean wind,and when earthquakes happen the tower undergoes the horizontal and vertical seismic action.Since the whole structure of the tower is asymmetric,in order to clarify the mechanical characteristics and ensure the structure safety,the tower structure was studied by foreign and domestic numerical calculation methods.The differences in force of the tower structure were analyzed under wind load only,earthquake load only and the wind-earthquake load combination case.Then the dynamic responses of the tower structure were performed under the combined action of wind and earthquake load with different earthquake input directions.The results pointed out the earthquake input direction which is most disadvantageous to the tower structure and the weak position of the tower structure is door opening location under this condition. KEY WORDS wind power:towers:seismic waves:wind stress:dynamic response 随着风力发电设施不断增多，保障在役风电塔 计算中需要考虑荷载情况的差异性，而且国内外在 结构安全变得尤为重要.风电塔是典型“头重脚轻” 该领域的标准规范也不一样.例如日本的《风电塔 的薄壁高耸悬臂结构，其支撑结构的主要破坏形式 支撑结构设计指南·同解说》口中描述了塔筒结构 是弯曲变形和基础脱离破坏.目前对这些破坏形式 每段所承受的剪切力需要考虑塔体总质量的影响， 的研究还不多，这不仅是由于在该结构理论和数值 而国内的GB50135一2006《高耸结构设计规范》☒ 收稿日期：2012-04-11 基金项目：因家自然科学基金资助项目(51178045)：广东省教育部产学研结合资助项目(2011B090400588)第 35 卷 第 7 期 北 京 科 技 大 学 学 报 Vol. 35 No. 7 2013 年 7 月 Journal of University of Science and Technology Beijing Jul. 2013 在役风电塔结构的最不利风--震组合作用响应分析 陈 阳1)，宋 波1) ，韦 伟2)，周 治2) 1) 北京科技大学土木与环境工程学院，北京 100083 2) 中国国电集团公司南方分公司，广州 510623 通信作者，E-mail: songbo@ces.ustb.edu.cn 摘 要 因风电塔整体结构不沿轴向对称，为明确该结构的受力特性和保证结构安全，采用国外及国内两种数值计算方 法对塔筒结构进行了研究，分析风荷载作用下、地震动作用下和风–地震组合作用下的塔体结构的受力差异. 在此基础上 对塔筒结构进行风–地震组合作用下的不同地震动输入方向的动力响应分析进行研究. 结果指出了该状态下对塔筒结构 最不利的地震动输入方向以及该作用条件下塔筒结构的薄弱位置为塔筒开口位置. 关键词 风电；塔；地震波；风应力；动力响应 分类号 TU33+3 Dynamic response analysis on the structure of wind power towers under the most unfavorable wind-earthquake combination action CHEN Yang 1), SONG Bo 1) , WEI Wei 2), ZHOU Zhi 2) 1) School of Civil and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China 2) Guodian Corporation South Branch China, Guangzhou 510623, China Corresponding author, E-mail: songbo@ces.ustb.edu.cn ABSTRACT With the increasing of wind power generation facilities, structure safety is particularly important in the service of wind power towers. Wind power towers are a typical top-heavy structure which is similar to a kind of thin-wall cylindrical structure. The supporting structure of a wind power tower is forced under the pressure of the upper engine room, rotor and blades, the side of the tower is thrust by ocean wind, and when earthquakes happen the tower undergoes the horizontal and vertical seismic action. Since the whole structure of the tower is asymmetric, in order to clarify the mechanical characteristics and ensure the structure safety, the tower structure was studied by foreign and domestic numerical calculation methods. The differences in force of the tower structure were analyzed under wind load only, earthquake load only and the wind-earthquake load combination case. Then the dynamic responses of the tower structure were performed under the combined action of wind and earthquake load with different earthquake input directions. The results pointed out the earthquake input direction which is most disadvantageous to the tower structure and the weak position of the tower structure is door opening location under this condition. KEY WORDS wind power; towers; seismic waves; wind stress; dynamic response 随着风力发电设施不断增多，保障在役风电塔 结构安全变得尤为重要. 风电塔是典型 “头重脚轻” 的薄壁高耸悬臂结构，其支撑结构的主要破坏形式 是弯曲变形和基础脱离破坏. 目前对这些破坏形式 的研究还不多，这不仅是由于在该结构理论和数值 计算中需要考虑荷载情况的差异性，而且国内外在 该领域的标准规范也不一样. 例如日本的《风电塔 支撑结构设计指南 · 同解说》[1] 中描述了塔筒结构 每段所承受的剪切力需要考虑塔体总质量的影响， 而国内的 GB 50135—2006《高耸结构设计规范》[2] 收稿日期：2012–04–11 基金项目：国家自然科学基金资助项目 (51178045)；广东省教育部产学研结合资助项目 (2011B090400588) DOI:10.13374/j.issn1001-053x.2013.07.019