ANALISIS KAPASITAS JEMBATAN RANGKA BAJA AUSTRIA TIPE DENGAN MENGGUNAKAN SOFWARE MIDAS CIVIL (Studi Kasus Jembatan Pintu Air Sepuluh)

Abstract

Pintu Air Sepuluh Bridge is one of the austrian steel truss bridge type. Conditions are increasingly crowded traffic growth, traffic jam on the bridge,and the excessive load passing through the bridge is feared to affect the condition of bridge.This research modeling bridge with MIDAS civil softwere. Ideal modeling carried out in accordance with the standard conditions of bridge. Whilethe actual modeling adapted to existing conditions available based on the data the tests were performed. Ideal modeling was conducted to determinethe percentage of the value of the average damage to the structure of bridge. In modeling the actual loading is given in accordance with standardloading SNIT-02-2005 to obtain the maximum deflection value and rods force (stress), that occurs as compared to the maximum deflection licenseand rods elements quality.The results showed that the bridge has suffered structural damage relative (Dreflatif) by 18%. Value of the maximum deflection due to loadcombinations SNI T-02-2005 of 38.29 mm and 68.92 mm serviceability conditions on the ultimate conditions are still below the maximumvalue permits L/800 deflection by 75 mm while for rods force (stress), to the largest diagonal at 162 MPa still below the allowable of stell stress299.42 MPa. From these results it can be concluded that the condition of the existing truss structure pintu air sepuluh bridge is still meets toaccept loading the standard SNI T-02-2005.