ASESMEN KONDISI STRUKTUR GEDUNG BULOG DIVISI REGIONAL JAYAPURA PROVINSI PAPUA PASCA KEBAKARAN

The structural condition assessment of the post-fire building of National Logistics Agency, Jayapura Regional Division, Papua Province was done to obtain how the temperature distribution pattern was toward the structural performances of: a) inter story drift; b) shear stress of the column structure bases; and c) the bending stress and shear stress of beams. The buildings National Logistics Agency located on Jalan Ahmad Yani, Jayapura Municipality were on fire for approximately three hours on March 15th, 2012. This incident damaged the components of the main building, namely: columns, beams, and floors. The components were made of concrete and reinforcing steel with various dimensions and strengths as well as stresses. Due to the increase in temperature, a different degradation of strength and stress on each of the main components was possibly present. As a result, some doubt was cast on the use of the post-fire building. The objective of this research is to investigate: (1) the temperature distribution toward the structure of the building; (2) the effect of fire temperature on the structural condition of the building; and (3) the structural performance of the building. The primary and secondary data of research were collected for the observation of temperature distribution pattern toward structure of the building, structural condition of the post-fire building, and structural performance due to the fire. The phases of analysis included: (a) field study, (b) data imputation, (c) data analysis, (d) result of analysis; (e) evaluation; and (f) recommendation. The evaluation of structural performance was done based on the primary data with the existing condition, and the result of structural analysis was then compared with that of the secondary data by using the computer program of ETABS v.9.6.0. The evaluation on the structural performance of the existing was done by two methods of analysis, namely: (a) analysis of inter-story drift and shear stress of the column structure bases; and analysis of bending stress and shear stress of the beams by using Indonesian National Standard 03-1726-2002. Based on the result of analysis with ETABS, calculation was done on the strength of beam structural section of the second floor and the ring beams of the third floor. The result of research shows that the structural condition of beams of the second floor and the ring beams of the third floor have the remaining concrete stress average of 67 percent. The result of the temperature distribution pattern and the effect of temperature of 3000C during the fire on the structure of the building of National Logistics Agency, Jayapura Regional Division, Papua Province indicate that the strength of the beam structural section of the structure of the building is not safe for the bending stress and shear stress. Keywords: Observation of temperature distribution pattern, non-destructive test (hammer test), modeling with ETABS v.9.6.0 and evaluation of structural performanc