基于ANSYS分析的高压输电塔结构动力特性研究
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摘要
建立了某高压输电塔结构的梁—杆混合空间模型,应用ANSYS软件进行了该高压输电塔结构梁—杆混合空间模型的模态分析,利用子空间迭代法计算了该模型的前10阶自振周期、频率及振型,结果表明高压输电塔结构的梁—杆混合空间模型更接近于结构的实际受力状态,计算所得结构基本自振周期与现行建筑结构荷载规范经验公式及电力部门经验公式吻合较好。
The paper establishes the beam-rod mixed space model of some high-voltage transmission tower structure,adopts ANSYS software to undertake the model analysis of the beam-rod mixed space model of the high-voltage transmission tower structure,applies the subspace iteration method to calculate the former 10 model self-vibration period,frequency and vibration type of the model,and proves by the result that the highvoltage transmission tower structure's beam-rod mixed space model is close to the factual stressed status of the structure,and the calculated structural basic self-vibration period is consistent with the loading experience formula of current architectural structures and power departments.
The paper establishes the beam-rod mixed space model of some high-voltage transmission tower structure,adopts ANSYS software to undertake the model analysis of the beam-rod mixed space model of the high-voltage transmission tower structure,applies the subspace iteration method to calculate the former 10 model self-vibration period,frequency and vibration type of the model,and proves by the result that the highvoltage transmission tower structure's beam-rod mixed space model is close to the factual stressed status of the structure,and the calculated structural basic self-vibration period is consistent with the loading experience formula of current architectural structures and power departments.
引文
[1]Zou Lianghao,Liang Shuguo.Investigation of 3-D dynamic wind loads on lattice towers[J].Wind and Structures,2008,11(4):323-340.
[2]梁枢果,邹良浩,赵林,等.格构式塔架动力风荷载解析模型[J].同济大学学报(自然科学版),2008,36(2):166-171.
[3]梁枢果,朱继华,王力争.大跨越输电塔—线体系动力特性分析[J].地震工程与工程振动,2003,23(6):63-69.
[4]邓洪洲,朱松晔,陈晓明,等.大跨越输电塔线体系气弹模型风洞试验[J].同济大学学报(自然科学版),2003,31(2):132-137.
[5]楼文娟,孙炳楠,叶尹.高耸塔架横风向动力风效应[J].土木工程学报,1999,32(6):67-71.
[6]梁枢果,邹良浩,韩银全,等.输电塔—线体系完全气弹模型风洞试验研究[J].土木工程学报,2010,43(5):70-78.
[7]梁波,徐建良.架空输电铁塔动力风响应的数值模拟[J].同济大学学报(自然科学版),2002,30(5):583-587.
[8]刘群,杨进春,周粼波.高压架空输电线路钢结构塔架与导线风致耦合振动现象研究[J].中国电力,1997,30(9):50-52.
[9]DL/T 5154-2002,架空送电线路杆塔结构设计技术规定[S].
[10]周新华.高压输电铁塔结构强度分析[D].保定:华北电力大学,2002.
[2]梁枢果,邹良浩,赵林,等.格构式塔架动力风荷载解析模型[J].同济大学学报(自然科学版),2008,36(2):166-171.
[3]梁枢果,朱继华,王力争.大跨越输电塔—线体系动力特性分析[J].地震工程与工程振动,2003,23(6):63-69.
[4]邓洪洲,朱松晔,陈晓明,等.大跨越输电塔线体系气弹模型风洞试验[J].同济大学学报(自然科学版),2003,31(2):132-137.
[5]楼文娟,孙炳楠,叶尹.高耸塔架横风向动力风效应[J].土木工程学报,1999,32(6):67-71.
[6]梁枢果,邹良浩,韩银全,等.输电塔—线体系完全气弹模型风洞试验研究[J].土木工程学报,2010,43(5):70-78.
[7]梁波,徐建良.架空输电铁塔动力风响应的数值模拟[J].同济大学学报(自然科学版),2002,30(5):583-587.
[8]刘群,杨进春,周粼波.高压架空输电线路钢结构塔架与导线风致耦合振动现象研究[J].中国电力,1997,30(9):50-52.
[9]DL/T 5154-2002,架空送电线路杆塔结构设计技术规定[S].
[10]周新华.高压输电铁塔结构强度分析[D].保定:华北电力大学,2002.
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