Green building design based on BIM and value engineering

LEED is widely used to guide green building design and evaluation. However, since in most cases, the construction cost is not the main evaluation content, the building energy saving is often accompanied by the cost increase, so the owner's willingness to participate spontaneously is not high. This paper takes residential buildings as an example, and uses BIM simulation technology combined with value engineering to analyze the relationship between cost and energy saving in the architectural design process. Based on the establishment of the REVIT model, Ecotect is used to simulate the energy consumption. By comparing the energy-saving performance of different schemes, the LEED score is calculated to determine the most cost-effective design. The study found that in the design stage, BIM tools combined with value engineering can better optimize the design and find a balance point that meets the requirements of green building evaluation and owner.