Cost and CO2 Analysis of Composite Precast Concrete Columns

Green Frame is developed not only to reduce costs and construction duration and improve safety and constructability, but also to enhance environmental-friendliness resulting from reduction of CO2 emission. Green Frame is a column-beam system composed of the Green Column and Green Beam, which are the composite precast concrete members. There are 5 types of Green Columns with different cost required and CO2 emission. The importance of cost and CO2 emission varies depending on the characteristics of a given project. Thus, this research is intended to perform cost and CO2 analysis in order to help engineers select the most appropriate Green Column type. As a result, it is drawn out that a specific type is not superior in all aspects. If a wide range of performances including productivity, constructability, construction safety and construction period are analyzed in the future, it will be likely to suggest a meaningful guideline to engineers in selecting a suitable Green Column for Green Frame.