桅杆结构风振系数研究

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振动与冲击 ›› 2016, Vol. 35 ›› Issue (22) : 48-53.

论文

桅杆结构风振系数研究

邓洪洲1 ，徐海江1，马星2

作者信息 +

Research on wind-vibration coefficient of guyed masts

Deng Hong-zhou1，Xu Hai-jiang1，Ma Xing2

Author information +

文章历史 +

摘要

基于随机风振理论，推导了桅杆结构杆身和纤绳风振系数计算公式；结合高耸结构设计规范的修订，分析了原规范杆身风振系数计算公式存在的问题；基于新荷载规范的改动，给出了杆身风振系数计算方法，更新了纤绳风振系数计算参数表格；通过算例分析发现，杆身振型可按无风状态计算且计算杆身风振系数时可只考虑前四阶振型的贡献；时程分析结果表明，杆身各段取四点计算风振系数的方法精度较好，计算简便；由于新荷载规范提高了脉动风荷载的峰值因子和湍流度，纤绳风振系数增大约20%。

Abstract

The calculation formulae of wind vibration coefficient of masts and cables were deduced on the basis of random vibration theory. The problems in the code for design of high-rising structures were analyzed in combination with its revision. New formula was proposed and the parameter`s table was re-established on the basis of changes in the new load code for design of building structures. Analysis of examples showed that no-wind state could be used in obtaining modes of masts and first four modes were needed to be taken into account. Time-domain analysis proved that the method of using four points in each section was precise and convenient to use. Due to the increase of peak factor and turbulence intensity, wind vibration coefficient of cables increased by approximately twenty percent.

导出引用

邓洪洲1,徐海江1，马星2. 桅杆结构风振系数研究[J]. 振动与冲击, 2016, 35(22): 48-53

Deng Hong-zhou1，Xu Hai-jiang1，Ma Xing2. Research on wind-vibration coefficient of guyed masts[J]. Journal of Vibration and Shock, 2016, 35(22): 48-53

参考文献

[1] 王肇民.桅杆结构[M].北京:科学出版社,2001.
Wang Zhao-min. Guyed maststructure[M]. Beijing: Science Press, 2001.
[2] 王肇民,程勇凌.桅杆结构动力特性研究[J].建筑结构学报,1993, 14(5):2-10.
Wang Zhao-min, Cheng Yong-ling. Research on dynamic characteristics of guyed mast structure[J]. Journal of Building Structures,1993, 14(5):2-10.
[3] 王仲刚,邓洪洲,王肇民.桅杆风振试验研究[J].工程力学,2003, 20(5):42-47.
Wang Zhong-gang, Deng Hong-zhou, Wang Zhao-min. Experimental study of the dynamic behavior of guyed mast in wind tunnel[J]. Engineering Mechanics,2003, 20(5):42-47.
[4] 王肇民,何艳丽,马星, 等.桅杆结构风洞试验研究[J].建筑结构学报,2000, 21(6):55-61.
Wang Zhao-min, He Yan-li, Ma Xing, et cl. Research on wind tunnel experiment of guyed masts[J]. Journal of Building Structures,2000, 21(6):55-61.
[5] 邓洪洲,徐建波,黄健,等. 桅杆结构动力特性及风振响应实测[J]. 同济大学学报(自然科学版),2004,32(10):1289-1294.
Deng Hong-zhou, Xu Jian-bo, Huang Jian, et cl. Full scale measurements of dynamic behavior and wind-induced response of guyed masts[J]. Journal of TongjiUniversity(Natural Science),2004,32(10):1289-1294.
[6] Materazzi A L, Venanzi I. A simplified approach for the wind response analysis of cable-stayed masts[J]. Journal of Wind Engineering and Industrial Aerodynamics, 2007,95:1272-1288.
[7] GBJ135-90.高耸结构设计规范[S].北京:中国建筑工业出版社,1991.
GBJ135-90.Code for Design of High-rising Structures[S].Beijing: China Architecture & Building Press, 1991.
[8] GB50135-2006.高耸结构设计规范[S].北京:中国计划出版社,2007.
GB50135-2006.Code for Design of High-rising Structures[S].Beijing: China Planning Press, 2007.
[9] 马星,颜明忠,沈之容.桅杆结构风振系数简化计算[J].特种结构,2002, 19(3):54-56.
Ma Xing, Yan Ming-zhong, Shen Zhi-rong. Simplified windvibration coefficient of guyed mast structure[J]. Special Structures,2002, 19(3):54-56.
[10] GB50009-2012.建筑结构荷载规范[S].北京:中国建筑工业出版社,2012.
GB50009-2012. Load Code for the Design of Building Structures[S]. Beijing: China Architecture & Building Press, 2012.
[11] 王肇民,程勇凌.桅式结构的风振系数研究[J].同济大学学报(自然科学版),1994, 22(2):178-183.
Wang Zhao-min, Cheng Yong-ling. Research on wind vibration coefficient of guyed mast structures[J]. Journal of TongjiUniversity(Natural Science),1994, 22(2):178-183.