（保定泰尔通信设备抗震研究所， 保定 071000）

［摘要］利用SAP2000对四座通信塔进行数值计算，将数值计算结果与实测数据进行对比，并对影响振型频率的相关因素进行研究。结果显示，数值计算结果和实测结果在振型方面吻合较好，在频率方面，数值计算与实测数据在一弯最为接近。此外，数据表明，斜撑刚度主要影响结构扭转振型频率，主杆刚度则对结构弯曲振型频率影响较大。

［关键词］通信塔； 数值计算； 实测数据； 振型； 频率； 敏感性分析

中图分类号： TU391 文献标识码： A文章编号：  1002-848X(2016)S1-0619-04

Research on sensitivity analysis of mode and frequency of communication steel tower

Zhang Huiming, Li Xiaoliang, Zhang Xuezhong, Gao Yongqiang

(Baoding TTL Anti-seismic Research Institute of Telecommunication Equipment, Baoding 071000, China)

Abstract： Numerical simulation was carried out on four communication steel tower by using SAP2000 software, the numerical results were compared with measured data and related factors that affect modal stiffness were studied. The result shows that the numerical results are in good agreement with measured data in terms of vibration type and first bending frequency. Meanwhile data show that bracing stiffness mainly affects the torsional frequency of the structure and the main rod stiffness has a greater influence on the bending frequency of structure. 

Keywords： communication steel tower； numerical simulation； measured data； mode； frequency； sensitivity analysis

作者简介：张辉明，硕士，Email：zhanghuiming@caict.ac.cn。