The development of structure in the limasan- And joglo-style vernacular houses after the 2006 Yogyakarta earthquake

Abstract

After a great earthquake hit the Special Region of Yogyakarta, Indonesia, in the year of 2006, some of the owners of the limasan- and joglo-style vernacular houses rebuilt their houses according to the education they received about the principles of earthquake-resilient building. This study investigates the structural development on the 11 (eleven) houses located in the Kabupaten (district) of Bantul, which was among the areas most affected by the earthquake. The owners combined the existing wooden main structural frame withstanding the earthquake with the new reinforced concrete structural frame. The owners also conducted various structural enhancements perceived as increasing the safety against possible future earthquakes. Despite this perception of future safety, in reality some of the owners' practice were not in accordance with the principles of earthquake-resilient buildings. This study also revealed the practice of combining two naturally different systems: the flexible wooden structural frame and the rigid reinforced concrete structural frame.