多棱插接式钢管塔风振反应时程分析
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摘要
多棱插接式钢管塔具有制作安装方便、占地面积小等独特优势,正在得到越来越多的应用。但这种结构属于风敏感结构,风振特性是设计必须考虑的关键因素。钢管塔结构为空间薄壁壳体结构,其结构分析设计尤其是风振反应分析与传统的杆系塔架结构有很大的不同。本文用有限元计算得到结构的自振频率和振型,利用振型向量和模拟得到的风荷载向量,通过将动力方程转化为状态空间方程并结合MATLAB程序进行结构的风振时程反应分析,得到了一些有益的结论。
Multi-rhombus plug-in steel tube tower has the prominent virtues of ease of construction,less bulk and has been widely used as the primary pole styles for a long time.But the sensitivity to wind and wind-induced character of this kind of structures are the key factors to be considered in design.Steel tube tower is a kind of spatial thin-walled shell structures,its wind-induced vibration responses are quite different from traditional tower.FEM is used to calculate the mode shape and frequency in this paper,on the base of mode shape vector and wind load vector,the dynamic equation is translated into state space equation to study the wind-induced response,some conclusions are also given in this paper.
Multi-rhombus plug-in steel tube tower has the prominent virtues of ease of construction,less bulk and has been widely used as the primary pole styles for a long time.But the sensitivity to wind and wind-induced character of this kind of structures are the key factors to be considered in design.Steel tube tower is a kind of spatial thin-walled shell structures,its wind-induced vibration responses are quite different from traditional tower.FEM is used to calculate the mode shape and frequency in this paper,on the base of mode shape vector and wind load vector,the dynamic equation is translated into state space equation to study the wind-induced response,some conclusions are also given in this paper.
引文
[1]董军,邓洪洲,杨荣.大直径钢管塔风振时程分析及风振控制研究[J].江汉石油学院学报.1998,20(1):105~109
[2]《高耸结构设计规范》GBJ135-90.北京:中国建筑工业出版社,1990
[3]《架空送电线路钢管杆设计技术规定》DL/T5130-2001.北京:中国电力出版社,2001
[4]《输电线路钢管杆制造技术条件》DL/T646-1998.北京:中国电力出版社,1998
[5]李积旭.影响钢管塔插接深度因素的浅析[J].电力建设.2000,5:33-35
[6]Design of Steel Transmission Pole Structures[J].Journal of the Struc-ture Division,Proceedings of the American Society of Civil Engineer-ing,Vol.100,No.ST12,December,1974
[7]赵海峰,蒋迪.ANSYS8.0工程结构实例分析[M].北京:中国铁道出版社,2004
[8]郝文化.ANSYS土木工程应用实例[M].北京:中国水利水电出版社,2005
[9]徐赵东,郭迎庆.MATLAB语言在建筑抗震工程中的应用[M].北京:科学出版社,2004
[10]王沫然编著.MATLAB6.0与科学计算[M].北京:电子工业出版社,2001
[11]张平等著.MATLAB基础与应用简明教程[M].北京:北京航空航天大学出版社,2001
[12]李宏男,贾影,李晓光等.利用TLD减小高柔结构多振型地震反应的研究[J].地震工程与工程振动.2000,20(2):122~128
[13]徐赵东,郭迎庆,周云等.被动控制结构的SIMULINK动态仿真分析[J].工程抗震.2000,12(4):18~22
[2]《高耸结构设计规范》GBJ135-90.北京:中国建筑工业出版社,1990
[3]《架空送电线路钢管杆设计技术规定》DL/T5130-2001.北京:中国电力出版社,2001
[4]《输电线路钢管杆制造技术条件》DL/T646-1998.北京:中国电力出版社,1998
[5]李积旭.影响钢管塔插接深度因素的浅析[J].电力建设.2000,5:33-35
[6]Design of Steel Transmission Pole Structures[J].Journal of the Struc-ture Division,Proceedings of the American Society of Civil Engineer-ing,Vol.100,No.ST12,December,1974
[7]赵海峰,蒋迪.ANSYS8.0工程结构实例分析[M].北京:中国铁道出版社,2004
[8]郝文化.ANSYS土木工程应用实例[M].北京:中国水利水电出版社,2005
[9]徐赵东,郭迎庆.MATLAB语言在建筑抗震工程中的应用[M].北京:科学出版社,2004
[10]王沫然编著.MATLAB6.0与科学计算[M].北京:电子工业出版社,2001
[11]张平等著.MATLAB基础与应用简明教程[M].北京:北京航空航天大学出版社,2001
[12]李宏男,贾影,李晓光等.利用TLD减小高柔结构多振型地震反应的研究[J].地震工程与工程振动.2000,20(2):122~128
[13]徐赵东,郭迎庆,周云等.被动控制结构的SIMULINK动态仿真分析[J].工程抗震.2000,12(4):18~22
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