Research On The Impact Of Prefabricated Technology On Carbon Emissions In Construction Stage

The increasing global warming has brought huge low-carbon challenges to countries around the world,and the construction industry is facing increasing pressure to reduce carbon emissions.In recent years,the development of construction industrialization has accelerated,and the application of prefabricated technology is an important change.The effect of prefabricated technology on the carbon emissions of buildings has become an research issue in exploring the low-carbon path and prospects of the construction industry.Based on the background of building industrialization,this paper uses quantitative methods to analyze the impact of prefabricated technology on the carbon emissions of residential buildings in three stages from a perspective of project.Firstly,whether the application of prefabrication technology on the carbon emissions of residential buildings is clarified.In this paper,the carbon footprint of the whole life cycle of the construction projects is re-described,and the carbon emission characteristics of the prefabricated buildings with cast-in-place buildings are compared.Secondly,the changes of the carbon emissions of prefabricated buildings under the scenario with different prefabricated levels are explored.In this article,various prefabricated scenarios are set and the carbon emissions of prefabricated buildings at each prefabricated level are further simulated based on the full life cycle theory.Then,the changing characteristics of the carbon emissions in the different scenarios are analyzed.Finally,the impact of cognitive and coordination capabilities about prefabricated technology of companies in the supply chain during the construction stage on carbon emissions under the prefabrication level determined.In this study,the concept of technical proximity based on proximity theory is introduced to establish a model of the relationship between the technological proximity of enterprises and carbon emissions during the construction stage and the impact between them is quantitatively analyzed.The application of prefabricated technology,the level of prefabricated technology application,and under the determined technical level,the impact of the supply chain companies’ technological cognition and coordination ability on the carbon emissions of the building stage are comprehensively analyzed.The results show that the application of prefabricated technology can reduce building carbon emissions to a certain extent,which has a positive impact on the low-carbon development of the construction industry.However,in the case of technical constraints,an appropriate level of prefabrication brings better low-carbon effects.Under the determined prefabrication level,the improvement of technical cognition and coordination among supply chain enterprises is conducive to promoting the reduction of building carbon emissions.This research further expands the application of full life cycle theory and proximity theory in the field of building low-carbon management,and provides project-level data support and theoretical basis for exploring low-carbon construction paths in the context of new industrialization.