Title: Assessing the carrying capacity of the Antonio Dovalí Jaime bridge, by using static and dynamic load tests

Author(s): O. Ortiz1, A. Patron, E. Reyes, V. Robles, ME Ruiz-Sandoval, C. Cremona

Publication: IMCYC

Volume: 2

Issue: 1

Appears on pages(s): 31-43

Keywords: Structural assessment, instrumentation, static testing, dynamic testing, analytical models

DOI:

Date: 7/1/2010

Abstract:
The Antonio Dovalí Jaime bridge is an important cable stayed bridge, located in the southeast of the Mexican Republic. The bridge has a total length of 1, 170 m and the main span is 288 m. It was open to traffic in 1984, and was the first cable-stayed bridge in Mexico. In order to assess the current state of the bridge an extensive program of non destructive tests was carried out; the field tests included measurements of stresses, a complete geometric survey of deformed configurations due to vehicle loads, and different series of ambient vibration measurements. The main results of the tests were: load-deformation relationships and dynamic properties (modal shapes, damping and frequencies) of first vibration modes. The results were employed to validate and improve a 3D finite element model of the bridge. The results obtained from FEM calculations were used to assess the actual state of the bridge.