Analysis of Deformation of Main Beams on Gathering & Testing Satellite AX (GTX AX) in Muara Jawa Kutai Kartanegara

A lot of oil of below sea bed including in sub district Muara Jawa, East Kalimantan Province, caused variety platform. One of the platform is Gathering & Testing Satellite AX owned by TOTAL E&P Indonesie Company. The main deck beams of GTS AX are guide along supporting heavy load. The objective of this reasearch is to evaluate the strength of main beam though examination of the deflaction and stress for several steel qualities. This reasearch based on field survey of object observation and data collection (design result, structure technical) and literature review to support the collected data. This reasearch used computer application program by SAP2000 v.9 to obtain forces on beam. Deflection and bending stress calculated by formula. The results ware examined by permissible deflaction and bending stress. Maximum deflaction is -3.181 mm and bending stress is 69.058 N/mm2 for 100 N/mm2 quality steel. Small deflaction does not to guarantee the safety. For example is beam 34, although the deflection is small, however the bending stress was maximum, this can the beam to cause brittle fracture.