Title: Finite Element Analysis and Experimental Study on Dynamic Characteristics of Prefabricated Steel Truss Bridge
Abstract: Natural frequencies and mode shapes,the invariable modal parameters reflecting the whole properties of a structure,are great significance for structural design validation,dynamics model constitution and bridge condition assessment. In this paper,a 3-dimension finite element model for a prefabricated steel truss bridge is established in detail and model analysis is carried out with ANSYS. The dynamic characteristics of the bridge are calculated by use of subspace iteration method. In order to validate the simulation results,the modal test method based on environment excitation is used,and the modal test of the prefabricated steel truss bridge is completed by configuring the test equipment sensors and analytic software. The result shows that calculation and testing well coincident and hence proves the reliability of this methodology. All of these provide reference for dynamic analysis of similar equipment.
Publication Year: 2014
Publication Date: 2014-01-01
Language: en
Type: article
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