Research On Optimization Of Large-space Architecture Design In Hot-summer And Cold-winter Areas From Low Carbon Perspective

Global warming crisis caused by greenhouse gas emissions is becoming a challenge for all mankind.Greenhouse gases produced by construction industry account for a large proportion of global greenhouse gases.Therefore,low-carbon construction is an important guarantee for the sustainable development of human civilization.Because of its large volume,large flow of people and complex thermal environment,large-space buildings are the most carbon emission intensive building types in the construction industry.Buildings in hot-summer and cold-winter areas need to meet the thermal comfort requirements of winter and summer at the same time,so the carbon emissions of buildings in the use stage are higher,and there is a large space for carbon saving.Therefore,from the perspective of low carbon,the design strategy of large-space building is an important part of low carbon building.From the point of view of architectural design,this paper summarizes the following two aspects that should be paid attention to in the design of large-space and low-carbon buildings in hot-summer and cold-winter areas: 1.Rational use of natural lighting and natural ventilation to reduce the carbon emission value in the operation period;2.Rational selection of building materials to reduce the carbon emission value in the operation period and in the building material production and transportation period.Taking the renovation project of the Qiangong Building of Southeast University as an example,this paper explores the role of design optimization in reducing carbon emissions,qualitatively analyses the selection of building main structural materials,and quantitatively studies the relationship between the optimization of lighting,ventilation and envelope materials and the reduction of building carbon emissions.In view of the large space in the project,the angle selection of roof skylight is studied from the perspective of lighting optimization,the size and location of elevation openings,natural ventilation path,mechanical ventilation mixing natural ventilation strategy are studied from the perspective of ventilation optimization,and the material selection of enclosure structure is studied from the perspective of material optimization.