RE-DESIGN OF THE UPPER STRUCTURE OF BARENG BRIDGE USING STEEL ARCH TYPE IN BARENG VILLAGE (SAWAHAN DISTRICT, NGANJUK REGENCY)
DOI:
https://doi.org/10.26740/rekats.v14n02.p--Keywords:
Modification, Steel Arch Bridge, Pot Bearing, Through ArchAbstract
Bareng Bridge in Bareng Village, Sawahan District, Nganjuk Regency was originally designed using a
Warren truss steel frame. The design modification replaces it with a steel arch frame type Through Arch, consisting
of a single span of 40 meters in length and 7.5 meters in width, including 1-meter-wide sidewalks on each side. The
central pillar is removed to enhance structural efficiency and aesthetics. The planning includes vehicle deck
structure, main steel frame, connections, wind bracing, and bearing pad design, adhering to the latest standards
such as RRSNI T-03-2005, SNI 1725:2016, and SNI 2847:2019. Structural analysis using SAP2000 software reveals
technical specifications such as a 20 cm-thick vehicle deck slab, 5 cm asphalt layer, and concrete strength of f’c 40
MPa. The steel structure consists of wind bracing WF 200x200x8x12, Main Girder WF 350x350x12x19, hangers
WF 400x300x10x16, and an arch CHS 16” with 20 mm thickness. Connections use BJ 37 with a thickness of 20 mm,
and bearings utilize the Pot Bearing type. The new design aims to provide greater strength, efficiency, and
aesthetics, making it a model of modern, sturdy, and monumental bridge construction.
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