ANALISIS PERBANDINGAN PERKUATAN BAJA IWF DAN STEEL JACKETING PASAR TRADISIONAL Br. LEBIH TERHADAP BIAYA KONSTRUKSI

Abstract

Reinforcing the building structure is done when a building is unable to support the existing load or damage occurs. This is what happened to the Traditional Market building of Br. Adat Lebih Beten Kelod, where the building failed due to the 2018 Palu earthquake which caused damage to the roof cantilever beam and required IWF Steel reinforcement as a solution.

In this study, an alternative reinforcement in the form of Steel Jacketing was compared to the existing IWF Steel reinforcement in terms of construction cost. Both reinforcements were analysed for deflection and deviation allowance limits using the structural application of SAP2000 v.22.
With the research carried out, the results of the cost budget plan for the Steel Jacketing reinforcement method were obtained at Rp. 758,097,472.30 and the cost budget plan for the IWF Steel reinforcement method at Rp. 633,779,376.50 using local cost prices, with each price obtained a cost difference of Rp. 124,318,095.80 with a price deviation of 16.4%. From the results of the cost calculation of the two reinforcements, it can be concluded that Steel Jacekting reinforcement costs more than Steel IWF reinforcement.