STUDI ALTERNATIF STRUKTUR ATAS JEMBATAN DENGAN BALOK GIRDER PRATEGANG TIPE I

Studi Kasus : Jembatan Langgaliru Kecamatan Umbu Ratunggay Kabupaten Sumba Tengah

Abstract

Concomitant the times and considering the increasing flow of traffic that will through the Langgaliru Bridge, it is important to plan an alternative structure for the Langgaliru Bridge using prestressed girder beams. Post-Tensioning method in which compressive force is induced into the concrete structure using high strength steel tendons that are embedded in ducts inside the concrete. Tendons stressed after the concrete has been cast and cured until the required compressive strength of the concrete. The number of tendons used is 3 pieces, each tendon consisting of 15 strands. The shear reinforcement used is D 19 - 250, the shear connector used is D 19 - 700, the vertical direction of the explosive break return used is D 10 - 550, the horizontal direction of the clot breaking reinforcement used is D 10 - 550, the vertical direction of the block fracture reinforcement used is D 36 - 60, the horizontal direction of the clot breaking reinforcement used is D 36 – 240.