PENINGKATAN KAPASITAS JEMBATAN TIPE RANGKA BAJA BERDASARKAN TINJAUAN KONDISI EKSISTING (Studi Kasus pada Jembatan Kuala Samboja Balikpapan – Handil II di Kecamatan Samboja) --

ABSTRACT
Kuala Samboja Bridge is one of the bridges located in Samboja District, Kutai
Kartanegara Regency, which is a link between Balikpapan and Handil II in Samboja
District. According to information from the public and observations in the field, the
condition of the Kuala Samboja Bridge with class C type is often passed by vehicles
that rest beyond its capacity and also the condition of the abutments that are
damaged, such as cracks and partially damaged winds under the bridge. Following
up on this in this study, it is necessary to analyze the bridge using the SAP2000
program with the loading used according to the regulations of SNI 1725:2016. After
analyzing, there are diagonal trusses that have a ratio value > 1, so it is necessary
to strengthen the bridge by adding a double angled profile of 100 x 200 x 100 and
an elbow profile of 130 x 130 x 12. With the addition of profiles, the stress ratio
value on the diagonal truss is reduced by 51 ,60% - 91,99%.
Keyword : Steel Frame Bridge, Bridge Reinforcement, Additional of Steel Profile.