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陆上风电混塔结构HSC/UHPC方案受力性能对比分析
Comparison analysis of stress performance of HSC/UHPC scheme for onshore wind turbine hybrid towers structure
2024年第10期
混合塔架;高强混凝土(HSC);超高性能混凝土(UHPC);受弯承载力;疲劳损伤
Hybrid tower; High strength concrete(HSC); Ultra-high performance concrete(UHPC); Bending bearing capacity; Fatigue damage
2024年第10期
10.19761/j.1000-4637.2024.10.034.06
国家自然科学基金项目(51811540401、52178195)。
高 鑫1,2a,2b,吴香国2a,2b,3,*,朱宏兵1,于 凯1,李博洋2a,2b,*
1.华锐风电科技(集团)股份有限公司,北京 100872;2.哈尔滨工业大学 a.结构工程灾变与控制教育部重点实验室 b.土木工程智能防灾减灾工业和信息化部重点实验室,黑龙江 哈尔滨 150090; 3.福州大学 土木工程学院,福建 福州 350108

高 鑫1,2a,2b,吴香国2a,2b,3,*,朱宏兵1,于 凯1,李博洋2a,2b,*

高鑫,吴香国,朱宏兵,等.陆上风电混塔结构HSC/UHPC方案受力性能对比分析[J].混凝土与水泥制品,2024(10):34-39.

GAO X,WU X G,ZHU H B,et al.Comparison analysis of stress performance of HSC/UHPC scheme for onshore wind turbine hybrid towers structure[J].China Concrete and Cement Products,2024(10):34-39.

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摘   要:传统的高强混凝土(HSC)和超高性能混凝土(UHPC)均可作为大型陆上风电混塔的主要结构材料,为进一步了解两种结构材料对混塔性能的影响,提出了HSC结构和UHPC结构混塔方案,并对比分析了两种结构混塔的受力特性和固有频率。结果表明:HSC结构和UHPC结构混塔在ULS(承载力极限状态)下的受弯承载力相差不大,但在SLS(正常使用极限状态)下的主压应力和FLS(疲劳极限状态)下的疲劳累计损失相差较大;HSC结构混塔的固有频率较高,超出了主机限值规定,需要采取额外的控制措施,而UHPC结构混塔的固有频率满足限值要求。 Abstract: The traditional high strength concrete (HSC) and ultra-high performance concrete (UHPC) can both be used as the main structural materials of hybrid towers for large-scale onshore wind turbine. In order to further investigate the influence of the two structural materials on the performance of hybrid towers, the schemes for hybrid towers of HSC structure and UHPC structure were put forward, and the stress characteristics and intrinsic frequency of hybrid towers of the two structures was comparatively analyzed. The results show that, there is a small difference between the ultimate bending bearing capacity of HSC structure and UHPC structure hybrid towers under ULS(ultimate limit state), but there is a significant difference between the main compressive stress under SLS(serviceability limit state) and the fatigue cumulative loss under FLS(fatigue limit state). The natural frequency of the HSC structure hybrid tower is higher, which exceeds the host limit regulations and requires additional control measures, while the natural frequency of the hybrid tower of UHPC structure meets the limit requirements.
英文名 : Comparison analysis of stress performance of HSC/UHPC scheme for onshore wind turbine hybrid towers structure
刊期 : 2024年第10期
关键词 : 混合塔架;高强混凝土(HSC);超高性能混凝土(UHPC);受弯承载力;疲劳损伤
Key words : Hybrid tower; High strength concrete(HSC); Ultra-high performance concrete(UHPC); Bending bearing capacity; Fatigue damage
刊期 : 2024年第10期
DOI : 10.19761/j.1000-4637.2024.10.034.06
文章编号 :
基金项目 : 国家自然科学基金项目(51811540401、52178195)。
作者 : 高 鑫1,2a,2b,吴香国2a,2b,3,*,朱宏兵1,于 凯1,李博洋2a,2b,*
单位 : 1.华锐风电科技(集团)股份有限公司,北京 100872;2.哈尔滨工业大学 a.结构工程灾变与控制教育部重点实验室 b.土木工程智能防灾减灾工业和信息化部重点实验室,黑龙江 哈尔滨 150090; 3.福州大学 土木工程学院,福建 福州 350108

高 鑫1,2a,2b,吴香国2a,2b,3,*,朱宏兵1,于 凯1,李博洋2a,2b,*

高鑫,吴香国,朱宏兵,等.陆上风电混塔结构HSC/UHPC方案受力性能对比分析[J].混凝土与水泥制品,2024(10):34-39.

GAO X,WU X G,ZHU H B,et al.Comparison analysis of stress performance of HSC/UHPC scheme for onshore wind turbine hybrid towers structure[J].China Concrete and Cement Products,2024(10):34-39.

摘要
参数
结论
参考文献
引用本文

摘   要:传统的高强混凝土(HSC)和超高性能混凝土(UHPC)均可作为大型陆上风电混塔的主要结构材料,为进一步了解两种结构材料对混塔性能的影响,提出了HSC结构和UHPC结构混塔方案,并对比分析了两种结构混塔的受力特性和固有频率。结果表明:HSC结构和UHPC结构混塔在ULS(承载力极限状态)下的受弯承载力相差不大,但在SLS(正常使用极限状态)下的主压应力和FLS(疲劳极限状态)下的疲劳累计损失相差较大;HSC结构混塔的固有频率较高,超出了主机限值规定,需要采取额外的控制措施,而UHPC结构混塔的固有频率满足限值要求。

Abstract: The traditional high strength concrete (HSC) and ultra-high performance concrete (UHPC) can both be used as the main structural materials of hybrid towers for large-scale onshore wind turbine. In order to further investigate the influence of the two structural materials on the performance of hybrid towers, the schemes for hybrid towers of HSC structure and UHPC structure were put forward, and the stress characteristics and intrinsic frequency of hybrid towers of the two structures was comparatively analyzed. The results show that, there is a small difference between the ultimate bending bearing capacity of HSC structure and UHPC structure hybrid towers under ULS(ultimate limit state), but there is a significant difference between the main compressive stress under SLS(serviceability limit state) and the fatigue cumulative loss under FLS(fatigue limit state). The natural frequency of the HSC structure hybrid tower is higher, which exceeds the host limit regulations and requires additional control measures, while the natural frequency of the hybrid tower of UHPC structure meets the limit requirements.

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(1)HSC和UHPC结构混塔在ULS下的受弯承载力相差不大,但在SLS下的主压应力和FLS下的疲劳累计损失相差较大,其中,UHPC结构混塔的性能更加优异。
(2)HSC结构混塔的固有频率较高,超出主机限值规定,可考虑方案调整,或针对其截面过大的情况将底部塔筒混凝土强度等级提高,在某些情况下,也可通过配置阻尼器的方式解决;UHPC结构混塔的固有频率满足限值要求。

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高鑫,吴香国,朱宏兵,.陆上风电混塔结构HSC/UHPC方案受力性能对比分析[J].混凝土与水泥制品,2024(10):34-39.

GAO X,WU X G,ZHU H B,et al.Comparison analysis of stress performance of HSC/UHPC scheme for onshore wind turbine hybrid towers structure[J].China Concrete and Cement Products,2024(10):34-39.

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