基于BIM的绿色建筑全生命周期环境影响 评价与标杆树立研究

基于工程项目的全生命周期评价视角，建立绿色建筑的多维信息模型，将建筑对环境的影响进行量化，明确绿色建筑技术的选择对项目碳排放削减的效果，并采用标杆管理法树立优秀标杆项目。以长沙市某小学教学楼设计方案为例，建立模型并进行计算，根据计算结果分析建设项目全生命周期各阶段采取不同绿色技术手段对建筑物碳排放效果的影响；采用相同的方法，得到其他参评项目全生命周期各阶段及整个生命周期的碳排放削减量、个性优势权重，据此评选出各个绿色建筑参评项目的个体标杆和群体标杆。

Research on Environmental Impact and Establishment of Benchmarking of Green Building Based on BIM

Based on the life cycle assessment perspective of the project, this paper establishes the Multidimensional Information Model of the green building, quantifies the environmental Impact of buildings, defines the effect of the choice of the green building technology on the carbon emission reduction of the project and adopts a benchmarking project to establish benchmarking projects. Taking the design scheme of a primary school teaching building in Changsha as an example, the model is established and calculated. Based on the calculation results, the effects of different green technologies on building carbon emissions in different stages of the whole life cycle of construction projects are analyzed. Using the same method, the carbon emission reduction and individual advantage weights of other projects in different stages of the whole life cycle are obtained to select the individual benchmarking and group benchmarking for each green building project.