Composite beam composed of steel and precast concrete (modularized hybrid system). Part IV: Application for multi‐residential housing

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Abstract

Abstract Multi‐residential bearing wall apartments have been constructed to meet the needs of the population growth in metropolitan Korea since 1980. It is extremely difficult to remodel wall‐type multi‐residential apartments due to the nature of the bearing walls. Residents also experience noise and vibrations generated between floors. It is necessary to introduce a frame structure that enables easy remodelling for the realization of long life of apartment. This paper introduces an efficient, multi‐residential modularized hybrid system (MHS). The material quantities, material cost and amount of CO 2 emission for the MHS are compared to that of bearing wall structures (linear rectangular shape and tower shape) and flat slab structures. A multi‐residential apartment with an MHS composite girder ensures architectural plan flexibility and easy remodelling, while the floor heights are maintained at the same floor height as in bearing wall structures. The material cost of MHS multi‐residential housing can be reduced by reducing the amount of concrete and reinforcement steels required for the slabs and walls. The MHS also reduces CO 2 emission in accordance with the reduction of construction materials. Dry‐type construction can be environment friendly by reducing human resources, temporary materials and waste. Copyright © 2009 John Wiley & Sons, Ltd.

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