NURANITA, BADRIANA and DESMALIANA, ERMA and GESA, KENNY (2020) Evaluasi Perencanaan Jembatan Kereta Api Rangka Baja Double Track Tipe Welded Through Truss Bentang 50 meter. Reka Racana, 6 (3). pp. 132-142. ISSN 2477-2569

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Abstract

This study analyzed the performance design about the uper structure of typical railway bridge for the 50 m WTT (Welded Through Truss) steel frame railway bridge with double track. Planning criteria refer to Attachment to the Minister of Transportation Regulation No. 60 of 2012 for Technical Requirements for Railroad. The results are evaluated in terms of stress ratio and deflection. The analysis result show that the 50 m WTT (Welded Through Truss) steel frame railway bridge has several diagonal bars that produce a stress ratio > 1, so it is necessary to add the thickness of the cross sectional profile or also to add a stiffener to the bridge structure. However the actual deflection value in the middle of the span of 46.651 mm still meets the requirements because it is less than the allowable deflection of 50 mm. Keywords: railway bridge, welded through truss, PM 60 of 2012, stress ratio and deflection

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