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（保定泰爾通信設(shè)備抗震研究所， 保定 071000）

［摘要］利用SAP2000對(duì)四座通信塔進(jìn)行數(shù)值計(jì)算，將數(shù)值計(jì)算結(jié)果與實(shí)測(cè)數(shù)據(jù)進(jìn)行對(duì)比，并對(duì)影響振型頻率的相關(guān)因素進(jìn)行研究。結(jié)果顯示，數(shù)值計(jì)算結(jié)果和實(shí)測(cè)結(jié)果在振型方面吻合較好，在頻率方面，數(shù)值計(jì)算與實(shí)測(cè)數(shù)據(jù)在一彎最為接近。此外，數(shù)據(jù)表明，斜撐剛度主要影響結(jié)構(gòu)扭轉(zhuǎn)振型頻率，主桿剛度則對(duì)結(jié)構(gòu)彎曲振型頻率影響較大。

［關(guān)鍵詞］通信塔； 數(shù)值計(jì)算； 實(shí)測(cè)數(shù)據(jù)； 振型； 頻率； 敏感性分析

中圖分類號(hào)： TU391 文獻(xiàn)標(biāo)識(shí)碼： A文章編號(hào)：  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

作者簡(jiǎn)介：張輝明，碩士，Email：zhanghuiming@caict.ac.cn。