PERENCANAAN PELAT LANTAI PADA PELEBARAN JEMBATAN AKSES MASUK DESA GRANTUNG PURBALINGGA

Abstract

Geographically, the Bodas River passes through Grantung village, so anyone entering the village must cross a bridge with a span length of 20 meters that is 1.5 to 2 meters wide. There is only one four-wheeled vehicle that can use the narrow road over the bridge. This condition has caused Grantung village to slow down its economic growth. Efforts were made to improve the standard of living of the people of Grantung village by developing the economic sector, namely the development of tourism and religious areas. To support this and improve the ease of access to and from Grantung village, it is necessary to widen the bridge. In this activity, Unsoed collaborated with the Grantung Village Head through the application of science and technology in making detailed engineering design (DED) bridges, namely planning the superstructure of the bridge consisting of railing and pedestrian space planning, floor slabs, and girders, while the substructure consists of planning pillars, abutments, and bridge foundations. This paper emphasizes the planning of railings and the bridge floor slab as the initial part of the bridge's superstructure planning. The new bridge has a road width of 5.5 meters, a pedestrian space of 2 x 0.75 meters, and a bridge railing height of 0.75 meters. The bridge floor plate has a thickness of 20 cm using reinforced concrete with a quality of f'c = 25 MPa or equivalent to K-300; a sidewalk has a thickness of 25 cm using concrete rebates with a quality of K-250; and railing support poles have column dimensions of 15 cm x 25 cm using reinforced concrete with a quality of K-250.