Dynamic measurements on stay cables of cable-stayed bridges using an interferometry laser system

被引：48

作者：

Cunha, A ^{[1
]}

Caetano, E ^{[1
]}

机构：

[1] Univ Porto, Dept Civil Engn, P-4100 Porto, Portugal

来源：

EXPERIMENTAL TECHNIQUES | 1999年 / 23卷 / 03期

关键词：

D O I：

10.1111/j.1747-1567.1999.tb01570.x

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Dynamic measurements on stay cables of cable-stayed bridges are currently performed during construction and when the bridge is already in operation. This is generally done using conventional accelerometers, which entails rather hard and tedious test protocols. Interferometric laser system is a new measurement system that enables systematic and accurate dynamic measurements on stay cables in a simple and comfortable way. The system enables measurements without direct contact with the vibrating surface of the cables and provides measurements of high level of accuracy, particularly in terms of identification of natural frequencies and cable tensions.

引用

页码：38 / 43

页数：6