The energy efficient expansion remodeling construction method of bearing wall apartment buildings with pre-cast composite structural systems

Abstract

The remodeling construction method of wall type apartment buildings utilizing conventional Rahmen structural system has some drawback of compatibility of the beam depth between existing bearing wall apartment buildings and conventional Rahmen structural system. The pre-cast composite structural systems presented in this study are capable of providing the identical floor depth with conventional apartment buildings. Connecting steels between the existing structures and new frames are developed and presented. This paper also presents the energy efficiencies and related merits of the remodeling construction method of wall type apartment buildings. This work finally demonstrates that the use of pre-cast composite structural systems for the expansion of conventional wall type apartment buildings would reduce the overall amount of energy input compared to utilizing the wall structural system for remodeling.The energy consumptions of remodeling construction method with pre-cast composite structural systems were reduced by approximately 45% in comparison with conventional wall type expansion, demonstrating opportunity for the healthy expansion of existing apartment spaces in environmentally friendly and sustainable ways.