Factors Causing Cost Increases In Building Structural Work In Medan

Abstract

Swelling cost (cost overrun) is common problems happen in project construction, especially in work structure absorbing building portion cost biggest. Inaccuracy planning, change design, as well as fluctuations material prices become frequent factors cause cost current exceed Plan Budget Cost (RAB). Research This aim For identify and analyze factors reason swelling costs on the job structure buildings in Medan City. Research methods used is approach descriptive quantitative with studies cases in three project building multilevel. Data collected through studies RAB documents and realization fees, interviews with party projects, as well as observation field analysis done with count deviation costs and grouping factor reason based on level its influence. Research result show that the average deviation cost work structure reach more from 10% of cost plan. The dominant factor that causes swelling cost is inaccuracy volume calculation, changes design during implementation, fluctuation low material prices productivity power work, and lack of coordination between party project. Internal factors such as error estimates and changes design give influence the biggest, while factor external enlarge impact deviation cost. Study This expected can become material evaluation for contractors and planners For increase accuracy planning costs and control project structure buildings in the future.