Remodeling-compatible multi-residential modularized hybrid system(MHS) to reduce the use of construction resources

This paper introduces a frame structure, an efficient, multi-residential Modularized Hybrid System (MHS) that enables easy remodelling to extend apartments' service life. It is extremely difficult to remodel multi-residential bearing wall apartments constructed to meet the needs of the population growing in the metropolitan Korea since 1980, due to the nature of the bearing walls. The conventional bearing-wall apartment design is remodellingincompatible. This study presents composite beams that provide an advantage over other composites in that these beams allow for a reduction in the height of the structural system. The bottom steel flange, encased in concrete, provides the stiffness and strength necessary to reduce lateral buckling of the beam. The need for formwork and for fire spraying during construction can be eliminated by the use of pre-cast concrete.