STMIK Indonesia Building

February 22, 2018

2009.

STMIK Indonesia provides classes and training in computer related occupations such as information technology and computerized accounting. STMIK is housed in a 4 story building in Padang that was constructed in 1998.

Figrure 1. STMIK Indonesia.

The primary structural system consists of concrete moment frames with brick masonry infill. The interior non-structural partitions consist of brick masonry infill with small concrete “practical” columns at the window and door openings. The floors are formed with concrete slabs and we understand from discussions with people at the building that the foundation includes concrete piles. Outside of a few hairline cracks there was no noticeable damage to the primary concrete frames. However, the brick masonry infill on the bottom two floors was extensively damaged, forcing the closure of the building.

Figure 2 . First Floor Lobby.

On the upper two floors, however, the brick infill walls remained mostly intact with only a few minor shear cracks. This evidence, combined with the lack of damage to the concrete moment frames, suggests that the infill walls provided lateral support for the building until they were too damaged to do so.

Figure 3. 4th Floor corridor, directly above the 1st floor corridor with the failed infill walls.

There was some minor settlement at the foundation around the front entry. We were told that the building is supported by a pile foundation but that the entry slabs are not tied into the pile system, which may explain the settlement issues. It did not appear that the settlement posed a hazard to the building.

Figure 4. Minor settlement at the entry.

The main issue with this building is how the brick infill acted as a structural element even though it was likely not designed to do so. While the main structure was relatively undamaged the damage to the “non-structural” walls caused the building to be shut down.


	Figure 5. The brick masonry infill on the bottom two floors was extensively damaged.		Figure 6. The infill walls provided lateral support for the building until they were too damaged to do so.



	Figure 7. The brick infills acted as a structural element even though it was likely not designed to do so.		Figure 8. The damage to the non-structural walls caused the building to be shut down.