AUTOMATIC MONITORING OF THE RIDDES BRIDGES USING ELECTRONIC INCLINOMETERS
AUTOMATIC MONITORING OF THE RIDDES BRIDGES USING ELECTRONIC INCLINOMETERS
复制标题
使用电子测斜仪自动监测 RIDDES 桥
DOI：
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
Jean
中科院分区：
文献类型：
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作者：
O. Burdet;Jean
本文提出了一种新颖的桥梁长期变形测量方法。使用高精度的电子倾斜仪可以有效地和成本效益的自动监测桥梁变形。该系统易于应用于承受强烈交通荷载的结构，并且能够在日常和季节性温度变化期间准确跟踪桥梁的运动。该系统已在瑞士西部的里德斯高架桥上运行了一年多，并提供了有关桥梁在使用条件下的行为的有价值的信息。测量的目的是为业主提供关于主跨可能向下趋势的准确信息。由于极端的温度变化，有时在一天内超过50毫米，经典的测量方法是不适用的，或者至少需要很长时间的观察。该系统能够在不到三年的测量时间内量化这一趋势。初步结果表明，以前对桥梁的干预主要是稳定了向下的挠度行为。
The paper presents an innovative method of measurement of long-term deformations of bridges. The use of high precision electronic inclinometers permits an efficient and cost-effective automatic monitoring of bridge deformations. The system is easily applicable to structures subjected to intense traffic loads and is able to follow accurately the movements of the bridge during daily and seasonal temperature variations. The system has been in operation in the Riddes viaduct in Western Switzerland for over a year, and has provided valuable information on the behavior of the bridge under service condition. The aim of the measurements is to provide the owner with accurate information on the on the possible downward tendency of the main span. Because of extreme temperature movements, which occasionally exceed 50 mm within a single day, classical methods of measurements are inapplicable, or would at least require a very long period of observation. The system has been able to quantify that tendency within less than tree years of measurement. Preliminary results indicate that previous interventions on the bridge have mainly stabilized the downward deflection behavior.