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ISO International Organization for Standardization
Document #: ISO 18649:2004 
Title: Mechanical vibration -- Evaluation of measurement results from dynamic tests and investigations on bridges 
Scope: ISO 18649:2004 provides methodology for the evaluation of results from dynamic tests and investigations on bridges and viaducts. It complements the procedure for conducting the tests as given in ISO 14963 and considers -- the objectives of the dynamic tests, -- the techniques for data analysis and system identification, -- the modelling of the bridge, and -- evaluation of the measured data. The dynamic tests considered in ISO 18649:2004 do not replace static tests. ISO 18649:2004 gives guidance on the assessment of measurements carried out over the life cycle of the bridge. The stages of the life cycle that are considered are -- during construction and prior to commissioning, -- during commissioning trials, -- during specified periods throughout the life of the bridge, and -- immediately prior to decommissioning the bridge. ISO 18649:2004 is applicable to road, rail and pedestrian bridges and viaducts (both during construction and operation) and also to other works, provided that they justify its application. The application of this International Standard to special structures (cable-stayed or suspension bridges) requires specific tests that take into account the particular characteristics of the work. 
Keywords:  
Committee: ISO TC 108 SC 2 - Measurement and evaluation of mechanical vibration and shock as applied to machine 
SDO Approval Date: 7/2/2004 
ANSI Approval Date:  
Date File Updated in Database Jul 21 2014 4:42PM 
Document Access: ANSI ESS
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