Wind-induced fatigue loading of tubular steel lighting columns

被引：16

作者：

Robertson, AP

Hoxey, RP

Short, JL

Burgess, LR

Smith, BW

Ko, RHY

机构：

[1] Silsoe Res Inst, Silsoe MK45 4HS, Beds, England

[2] Flint & Neill Partnership, London SW1H 9BP, England

[3] Highways Agcy, London SE1 OTE, England

来源：

WIND AND STRUCTURES | 2001年 / 4卷 / 02期

关键词：

wind loading; fatigue; drag; lighting columns; street lights; lamp-posts;

D O I：

10.12989/was.2001.4.2.163

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Two 12 m high tubular steel lighting columns have been instrumented to determine the wind-induced fatigue loading experienced by such columns. Each column supported a single luminaire mounted on a 0.5 m long bracket. One column was planted in soil, and the other bolted through a welded baseplate to a substantial concrete base. The columns were strain gauged just above the shoulder weld which connected the main shaft to the larger base tube. Forced vibration tests were undertaken to determine the natural frequencies and damping of the columns. Extensive recordings were made of response to winds with speeds from 4 m/s to 17 m/s. Selected records were analysed to obtain stress cycle counts and fatigue lives. Mean drag coefficients were also derived from the strain data to investigate experimentally the effect of Reynolds Number.

引用

页码：163 / 176

页数：14