Lateral trusses between I‐girders introducing torsional stiffness to a composite bridge in Guatemala

Abstract The ways of designing and building steel girder bridges with a composite concrete deck vary much between different parts the world. A bridge system twin I‐girders or concept multiple (more than two) girders can be used. design use details secondary systems also lot. In order to give horizontal stabilization distribute loads, bracing bracings are often Although not so common, used vertical loads main girders. To describe analyze possible impact from using lateral bracing, this paper describes curved in Guatemala City its challenges. new Bridge over Pinula River is designed as steel‐concrete on top has case study load distribution longitudinal was flanges along whole lower near supports. shows that eccentric improved by for some cases, it may beneficial length, like example bridge. due governing cases construction stages where these influenced torsional stiffness such way an unfavorable support reactions six at supports achieved.