Research On The Generation Method Of Multi-objective Optimization Design Of "three-dimensional Green Building" Based On Green Performance Orientation

As the three-dimensional greening technology is gradually applied to various construction around the world,and from the low-rise and multi-storey buildings to the(super)high-rise buildings,the development of the “three-dimensional green building” has become an important part of eco-city design.The three-dimensional greening of buildings can reduce the pressure of urban green space shortage and bring green economic benefits while improving the comfort of human settlements.However,the current impact on the green performance brought about by “three-dimensional green building” is often lack of objective evaluation basis,and further effective quantitative evaluation methods are needed to accurately predict and optimize the performance of “three-dimensional green building”.At the same time,“three-dimensional green building” has many design elements and many types of optimizable green performance targets.Conventional engineering simulation methods are difficult to meet the technical requirements for solving complex optimization problems,and new technology paths and methods need to be sought for research.Therefore,this paper chooses the green performance of the building as the basis for optimization,and research on the multi-objective optimization design generation method of “three-dimensional green building” based on green performance orientation.Firstly,the research on the multi-element design problem of "three-dimensional green building" is carried out,and the three-dimensional greening components are selected as the most important design objects.The analysis of the green performance of the pool,shrub green pool,grass wall and rattan frame verified the performance difference and optimization necessity,and provide three-dimensional greening component selection reference scheme with the orientation suitability analysis.Secondly,the research on the multi-performance target problem of “three-dimensional green building” is carried out.Based on several common green building evaluation standards in China,the performance evaluation of different standards is emphasized,and the indicators of different standards are compared.On the basis of this,the common evaluation methods and technical tools of various performances are analyzed,which provides a preliminary feasibility reference for the selection of performance objectives.Furthermore,the study combines the multi-element and multi-objective two-side optimization requirements of “three-dimensional green building”,analyzes the limitations of conventional research methods,and proposes the research necessity of multi-objective optimization design methods.The research discusses the theoretical basis and technical tools of multi-objective optimization design method,proposes the complete process,and evaluates the feasibility of combining various performance and multi-objective optimization design methods.And provides a theoretical basis and technical reference.Subsequently,the research carried out multi-objective optimization experimental design on the simple type "three-dimensional green building",and analyzed the characteristics of the method and the appropriate target under the condition of timeliness.The research selects the single vertical greening component as the experimental object,and takes the lighting,solar radiation heat and vision as the optimization target,and discusses the related program construction,parameter setting and generation data.The results show that the experiment produces a series of simple “three-dimensional green building” schemes with excellent green performance under lower time cost.Finally,this paper extends the research type of “three-dimensional green building” from simple to composite,and changes the focus of the optimization method from timeliness to accuracy,and analyzes the characteristics of optimization methods and the appropriate targets under the condition of accuracy.The research selected "vertical forest building" as the representation of the composite "three-dimensional green building",takes the energy consumption,thermal comfort,daylighting and three-dimensional greening as the optimization objectives.The results show that compared with the simple "three-dimensional green building" experiment,the composite "three-dimensional green building" experiment has generated a certain solution cost while increasing the accuracy of the result data.In summary,the research based on the green performance-oriented multi-objective optimization design generation method of “three-dimensional green building” not only shows the feasibility of combining multi-objective optimization design method with “three-dimensional green building”.And whether it is the simple or composite type "three-dimensional green building" optimization design method proposed in this paper,it can automatically find a variety of solution with better green performance under various constraints and different performance target requirements.