A Feasibility Study of Green Frame(GF) for the Implementation of Low-carbon Emissions & Long-life Housing

Abstract

The bearing wall apartments which occupy the majority of multi-residential apartment buildings built in Korea, are known for having limited architectural plan flexibility, posing challenges in terms of maintenance and remodeling. The economic losses and environmental issues resulting from the reconstruction of bearing wall apartments are now accumulating to the extent that they are becoming a national concern. Multi-residential apartment buildings, which are now the dominant form of residence in Korea, must accommodate diverse customer needs and changes in life style. A new concept of Rahmen structure with architectural flexibility is Green Frame. GF multi-residence housing is expected to reduce construction costs and shorten the construction schedule by overcoming the shortcomings of conventional bearing wall apartments. This goal is consistent with the national policies that target the reduction of resource and energy consumption. In addition, GF will be established as a core contributor to achieving a reduction in CO 2 emissions, which will enable the sustainable growth of domestic construction industry, and address the low-carbon green growth drive implemented by the government.

Development of a Steel-Guide Connection Method for Composite Precast Concrete Components

“…Green Frame is a column-beam structure formed by connecting a composite precast concrete (CPC) beam with a steel connection on the column side (Lim et al 2012). Numerous studies have shown Green Frame, which couples the economic efficiency of concrete with the constructability of steel, to be structurally stable environmentally friendly, and to reduce the embodied CO 2 by approximately 20~30% when compared to existing structural systems (Hong et al 2009(Hong et al , 2010a(Hong et al , 2010b.…”

In-situ Production Analysis of Composite Precast Concrete Members of Green Frame

“…Maintenance and remodeling are difficult for bearing wall type apartment buildings, which represent 50 % of residences in Korea, due to partitioning by the bearing wall [1]. This has frequently led to the unnecessary reconstruction of apartment buildings, which not only wastes expense and labor, but also can result in socially disruptive events, like a sudden rise of real estate prices [2]. To solve this problem, the government has implemented an incentive system that increases the volume and height limit by 20 % if the apartment applies a rahmen structure, which enables easy remodeling and deformation without structural damage.…”

An Analysis of the CO2 Reduction Effect of a Column-Beam Structure Using Composite Precast Concrete Members

“…Many countries have increased efforts to reduce greenhouse gases. Such efforts have led to the construction of green buildings throughout the world [2][3][4][5]. In Korea, an energy performance score calculated based on the ''Housing Performance Rating System'' is regarded as an unexpected expense when considering apartment sales [6].…”

“…Since the bearing wall structure lacks unit changeability, a significant amount of dismantling or reinforcing of structures must be performed when a building requires renovation due to deterioration and a change in lifestyle [2]. As a result, most residents would prefer rebuilding to renovation.…”

“…The domestic construction industry has been constructing buildings with bearing wall structures to apartment buildings for the past 30 years [1]. Since the bearing wall structure lacks unit changeability, a significant amount of dismantling or reinforcing of structures must be performed when a building requires renovation due to deterioration and a change in lifestyle [2]. As a result, most residents would prefer rebuilding to renovation.…”