STUDI ALTERNATIF PERENCANAAN STRUKTUR ATAS BOX GIRDER PRATEGANG

Studi Kasus : Jembatan Cincin Lama Penghubung Lamongan Dan Tuban

Abstract

The Cincin Lama Bridge that connects Tuban-Lamongan is a former railroad bridge from the Dutch colonial era and has not been operating since the 1980s. Currently, the cincin bridge is used as an alternative route to cross the Bengawan Solo river. The bridge with a length of 200 meters and a width of 9 meters is divided into five segments (spans) each with a length of 40 meters per segment. The one that collapsed yesterday was the third segment in the middle of the river. Therefore, the design of the new Cincin Lama Bridge was designed using a prestressed concrete structure with a segmental box girder section so as to produce a structure that is stronger to withstand the load. In the box girder structure, the number of components to form two lanes is less than steel components, so that during its implementation it can reduce disturbances during the distribution or erection of components.