An efficient numerical procedure based on the cubic spline technique is developed to obtain the vertical displacements of the bridge deck using the slope values measured at selected points under the test loading. Most static load tests of bridges are performed to evaluate the stiffness characteristics of bridge structures or to check the accuracy of their computer models. From this standpoint, vertical displacements of the bridge under certain loads have a crucial importance. However, if the bridge is over a river, a lake, muddy ground, or a major highway, conventional displacement transducers cannot be used appropriately for this purpose. Furthermore, strong wind and the bridge’s height badly affect the accuracy of the transducers. Another way to obtain bridge deflection is to use an indirect method. Tiltmeters, which have been increasingly used for construction monitoring and structural testing of bridges, are suitable devices in terms of indirect deflection measurements because of their characteristics such as high sensitivity, easy installation, and small electrical drift. The testing and evaluation procedure developed was applied on a real bridge, and the results indicated that this method could be applied to obtain vertical displacements of bridges as an alternative to the use of conventional displacement transducers.


    Access

    Download

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Testing Bridges by Using Tiltmeter Measurements


    Additional title:

    Transportation Research Record: Journal of the Transportation Research Board


    Contributors:


    Publication date :

    2000-01-01




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



    Testing Bridges by Using Tiltmeter Measurements

    Sanli, Ahmet K. | Online Contents | 2000


    Testing Bridges by Using Tiltmeter Measurements

    Sanli, Ahmet K. | Online Contents | 2000


    A Simple Tiltmeter

    Dix, M. G. / Harrison, D. R. / Edwards, T. M. | NTRS | 1982


    LONG TERM STABILITY TESTING OF A GRAVITY SENSING TILTMETER

    PRESKITT, STANLEY / KERR, JAMES | AIAA | 1966


    Tiltmeter-based weighing device

    M. S. Soo Hoo / C. M. Percival | NTIS | 1992