PERENCANAAN STRUKTUR ATAS JEMBATAN BETON BERTULANG DENGAN MENGGUNAKAN BEBAN GEMPA SNI 1726-2019 DIKOTA BALIKPAPAN

Abstract

A bridge is a land transportation infrastructure that can be passed by vehicles or pedestrians to
cross difficult terrain such as rivers, lakes, highways, railways, and so on. This bridge
construction project is a very important work in the transportation flow of the people of West
Balikpapan District in particular. This certainly affects the economic growth of the local
community. This activity can run well if the existing infrastructure is also in good condition. In
planning the upper structure of this bridge, an analysis was carried out on the strength of the
upper structure of the reinforced concrete bridge against loads based on SNI 1725-2016
concerning loading for bridges, and earthquake loads in accordance with SNI 1726-2019 which
regulates earthquake resistance planning procedures for building and non-building structures.
After calculations and evaluations were carried out on the backrest pile planning, 4Ø8 bending
reinforcement was used and sliding reinforcement was used Ø8 - 100 mm. In the planning of the
bridge floor cantilever plate, with an arm length of 85 cm and a plate thickness of 20 cm, D13 -
100 mm reinforcement is used. in the inner plate planning (Inner Slab) headed x-direction
bending reinforcement used D29 - 150 mm. Y-direction bending reinforcement is used D29 -
150 mm. In girder planning, girder height (h) 80 cm, width (b) 40 cm, T-Girder wingspan (beff)
2300 mm, effective height T-Girder 650 mm. Bending reinforcement is used 10D32 with
compressive reinforcement is used 3D32. Shear reinforcement D12-150 mm. Plus shrinkage
reinforcement to strengthen the structure, 3D12 is used. On the planning of the diaphragm,
dimensions are planned 40 x 40 cm, 6D16 bending reinforcement is used. Given D12-150 mm
sliding reinforcement as a fastener.