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Experiment and Analysis of Structural Natural Modal Parameters of Fengjie Changjiang River Bridge

Zhang Qiu-ling

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Abstract

The main bridge of Fengjie Changjiang River Bridge is a cable-stayed bridge with double pylons and double cable planes and with a main span 460 m.In this paper,the principal contents and methods for experiment of the structural natural modal parameters of the Bridge are presented.On the basis of theoretic calculation,the natural vibration frequency and vibration modes of the Bridge are compared and analyzed.The results of the experiment indicate that the dynamic performance of the Bridge can satisfy its design requirements.

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What this paper is about

The main bridge of Fengjie Changjiang River Bridge is a cable-stayed bridge with double pylons and double cable planes and with a main span 460 m.In this paper,the principal contents and methods for experiment of the structural natural modal parameters of the Bridge are presented.On the basis of theoretic calculation,the natural vibration frequency and vibration modes of the Bridge are compared and analyzed.The results of the experiment indicate that the dynamic performance of the Bridge can satisfy its design requirements.

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Available abstract

The main bridge of Fengjie Changjiang River Bridge is a cable-stayed bridge with double pylons and double cable planes and with a main span 460 m.In this paper,the principal contents and methods for experiment of the structural natural modal parameters of the Bridge are presented.On the basis of theoretic calculation,the natural vibration frequency and vibration modes of the Bridge are compared and analyzed.The results of the experiment indicate that the dynamic performance of the Bridge can satisfy its design requirements.

Key concepts: Bridge (graph theory), Vibration, Structural engineering, Modal, Span (engineering), Natural frequency, Engineering, Modal analysis

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