Earthquake Engineering Research Institute
Learning From Earthquakes

Mitsubishi car showroom

February 22, 2018

2009.

This Mitsubishi car showroom in Padang was built in 2006 and began operating in 2007.  The building is a reinforced concrete frame with masonry infill. 

Earthquakes in 2007 caused some minor cracks in the building, which were later patched over. It appears that the September 30, 2009 earthquake (M7.6) did not damage the concrete frame itself, but the nonstructural features (e.g. façade, infill) were unable to deflect with the frame and were therefore significantly damaged.  In particular, many of the infill walls failed in shear.  The showroom is closed because of the extensive damage to the nonstructural features.  Fortunately, the car showroom was closed during the time of the earthquake and therefore there were no casualties.  The building owner is planning to demolish and rebuild the structure since it is insured for earthquakes.  It is currently being guarded by one of the security guards since nine of the ten deposit boxes are still in the building.

 

Mitsubishi Motors building before and after the September 30, 2009 M7.6 earthquake.                                                                Nonstructural damage along front side of building
Figure 1. Mitsubishi Motors building before and after the earthquake.   Figure 2. Nonstructural damage along front side of building.
     
     
Damage along back of the Mitsubishi Motors building
Figure 3. Damage along back of the Mitsubishi Motors building.