不同斜撑方式对格构式异形铁塔的影响  

Different Sway Modes' Influence to the Lattice Steel Tower

作　　者：林文泉[1] 朱尔玉[1] 

机构地区：[1]北京交通大学土木建筑工程学院,北京100044

出　　处：《北京交通大学学报》2005年第4期54-56,共3页JOURNAL OF BEIJING JIAOTONG UNIVERSITY

摘　　要：铁塔是一种典型的主要承受风荷载的高耸结构.为了保证铁塔在正常使用状态下不发生过大的变形,必须对铁塔进行风荷载作用下的结构分析,并设计出合理的结构形式.结合风洞模型实验,利用大型有限元计算程序,分析对比了格构式铁塔的不同斜撑方式对结构变形的影响,得出交叉斜撑方式能使铁塔圆弧段的变形更小.Steel tower is a typical highness structure, which mainly bears wind loading. In order to assure that there isn't oversize deformation in the normal state, it is necessary to analyze the structure loaded by wind and design the sound structure. The paper adopts finite element software with the experimental result of the wind tunnel to analyses the structure deformation by comparison the lattice steel tower's different sway modes. According to the result, the deformation of the tower is smaller in the × sway mode.

关 键 词：异形铁塔 斜撑 风荷载 变形 

分 类 号：TU391[建筑科学—结构工程]