Abstract
Iwagurojima Bridge, which comes under the Honshu-Shikoku Bridge project, is a cable-stayed bridge with a main span of 420m. In this bridge, designed to be of a highway and railway combination type, fatigue behavior due to train load will pose an important problem. In order to prove the appropriateness of the fabrication procedure for this bridge, a specimen with dimensions almost equal to the transverse chord of stiffening truss, was trially fabricated. This specimen was then subjected to a static torsional loading test and a bending fatigue test. The objectives of these tests were to investigate the fatigue behavior of different weld joint details. These results reflected on the practical design and construction.
