In the recent remodeling construction for old apartment, it is general to extend the parking space for the increased cars for residents. This paper reviews the extension methods of parking space and presents the problems that must be solved for the construction. In this paper, three extension cases of parking space in the remodeling projects were reviewed. As a result, the demand for the extension needs to be analyzed for the various cases and the technologies for the best-fitted construction should be suggested based on the demand.

The purpose of this study is to evaluate the seismic performance of RC frame building which was retrofitted by wing walls. At fitst, the seismic performance evaluation was performed on the deteriorated RC frame building by using capacity spectrum method. And the efficiency of the retrofit by using wing walls was checked from the evaluation of its seismic capacity for various layout. As a results, it was found that the wing wall increased the stiffness and strength of the building.

In this paper, the seismic performance of RC frame with deterioration of structural capacity was evaluated by using capacity spectrum method. And the efficiency of retrofit by using infilled masonry was checked from the evaluation of its seismic capacity for various layout. As a results, it was found that the masonry infill wall increased the stiffness and strength, but reduced ductility.