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Environmental problems caused by energy consumption are a global and growing problem. Building energy consumption is the main energy consumption, but there is no model or application system that can effectively quantify and standardize the energy consumption calculations. By taking the physical and chemical carbon footprint of buildings as the research object, this paper establishes a total building carbon footprint calculation model based on different stages of carbon footprint sources. Accord-ing to the source of carbon footprint in different stages, the total model and sub model of building carbon footprint calculation are established. In order to realize the rapid quantitative calculation of build-ing carbon footprint, we develop a system frame-work, database and (Building Information Model-ing) BIM interface. This model shows that the car-bon footprint concentration of the frame structure is 417.68 kgCO2eq/M² and that of the frame-cut struc-Mre is 50332 kgCO2eq/m², i.e. the carbon footprint concentration of the frame-cut structure is 20.5% higher than that of the frame structure. Comparing the carbon footprint concentrations of different ma-terials can reduce total carbon emissions in the pro-duction of building materials and allows the devel-opment of new material production processes or ma-terials to reduce the carbon concentration in the building phase. [ABSTRACT FROM AUTHOR]

In this paper, to conduct an in-depth study on the green construction of coastal prefabricated assembly buildings, we use BIM technology application in which we can realize the fine production of prefabricated assembly buildings and improve the quality of finished products. In addition, BIM technology makes the design efficiency improved from the whole design whole life cycle. Again, the application of BIM technology to prefabricated assembly building design can optimize collaborative design, component deepening, schematic design, and pre-planning. Designers can use BIM modeling software to build a model and import it into environmental simulation software so that designers can analyze the environment of the model in the pre-design stage. BIM model can also be used for inter-professional collision checking and visual collaboration. We have taken measures in five areas: conservation, material and material resources utilization, water and water resources utilization, energy conservation and energy utilization, and land and land resources conservation. A series of management systems including pre-planning, process implementation, performance evaluation, and application promotion has been established and research results have been obtained. The project has passed the evaluation of "the fifth batch of national green construction demonstration projects" and has achieved good social and economic benefits. It is proved that the research results of green construction management of this project have reference significance for the green construction management of other construction projects. [ABSTRACT FROM AUTHOR]

The application of BIM technology in the design of green and ecological public environment buildings is an inevitable choice. Through the application principles of BIM green ecological public environment building design, detailed research on the practical application of BIM technology is carried out, with the purpose of making better use of the value of BIM technology in the energy-saving design of green buildings, improving the design level of green ecological public environment buildings, and achieving the energy-saving result. In this paper, through the application of BIM simulation analysis software, we design the natural lighting, natural ventilation, spatial pattern, and compare the performance before and after design. The research results show that after the design by using the BIM technology, the annual load of heating, ventilation and air conditioning was reduced from 34280KWh/year to 26350KWh/year, a reduction of more than 23%. The air velocity increased from 0.4m/s to 0.9m/s and carbon emissions have been reduced from 5621kg/year to 4651kg/year. [ABSTRACT FROM AUTHOR]

The main goal of green building is to address the issue of how energy savings can improve water efficiency, increase application capacity, and ensure that the region's built and natural environments develop together. The indoor and outdoor environmental performance of green building is the research object of this paper, and the feasibility and rationality of the application of BIM technology in the green building environmental performance evaluation system is discussed. Green building indoor and outdoor wind, sound and indoor light environment green indicators are established, BIM technology is used to carry out parametric modeling through data conversion. 3D models within the relevant simulation tools to carry out a variety of performance tests, the use of BIM technology to carry out the assessment of specific aspects and methods are summarized. Based on the proposed evaluation process, the environmental performance of the project, including outdoor wind environment, outdoor acoustic environment, indoor natural ventilation and indoor natural lighting is analyzed and evaluated based on the project case. The results are of great significance to the establishment and improvement of the green building environmental performance evaluation system. [ABSTRACT FROM AUTHOR]

With the rapid development of infrastructure construction, the requirements from public about the efficiency and quality of construction are increased as well. Building information modeling technology, as one of the most advanced information management method, is widely applied in engineering projects during the whole life cycle. The information generated by BIM system is in high quality, and those information or data could be managed effectively and reasonably by BIM technology. Meanwhile, the BIM system is a dynamic information sharing platform which could be updated by all participants. However, the application of BIM technology should combined with four main stages during the whole life cycle of the engineering project to achieve the delicacy management. [ABSTRACT FROM AUTHOR]

With the rapid development of information technology, the traditional building information model technology (B1M technology) has been applied in different life cycles of maintenance, construction and design, and can bring considerable benefits. B1M technology, mainly based on computer technology, including building a three-dimensional model of building information used for collective design and construction, can effectively solve the problems existing in the design of traditional design drawings, and realize statistics, monitoring and virtual demonstration of materials and the integrated design of indoor parameterization, and effectively reduces the risk of errors and increases the efficiency of design. [ABSTRACT FROM AUTHOR]