Study On Outdoor Regional Environment Based On The Demands Of Green Buildings

In recent years,the concept of green building has gradually gained popularity,and people are increasingly aware of the importance of building ecological buildings and sustainable buildings.Green building refers to buildings that can save energy,reduce pollution,and create healthy,efficient,coordinated symbiosis with nature throughout the life of the building.The outdoor environment of buildings has a direct impact on the human body.Therefore,it is especially important to create a comfortable,healthy,safe and pleasant outdoor living environment.The construction of the outdoor environment of buildings should be as beneficial as possible to avoid disadvantages.Provide a more pleasant space environment to enhance user satisfaction.Based on the requirements of green buildings,this study comprehensively analyzes and studies the outdoor wind environment,acoustic environment,light environment,thermal environment and user comfort of residential buildings.The main work of this paper is as follows:Study the wind speed and wind pressure difference under the dominant wind direction angle of the building,judge the quality of the wind environment according to its size;use the size of the sound level to judge the advantages and disadvantages of the outdoor acoustic environment,and explore the distribution law of the acoustic environment in the outdoor area;Analyze the occlusion function between buildings under the influence of outdoor light;comprehensive analysis of the outdoor thermal environment based on the calculated thermal parameters.The field was measured and the results were statistically analyzed.The distribution of wind speed,noise,illumination,temperature and humidity in the outdoor area at different time periods were obtained.The influencing factors of the outdoor environment were analyzed to understand the current status of the outdoor environment of the residential building and summarize according to the characteristics.A questionnaire survey was conducted on outdoor thermal comfort.Very few residents indicated that they were unacceptable.Most of the households had good subjective satisfaction,indicating that the outdoor thermal environment in the area is suitable for outdoor activities.The numerical calculation value is compared with the measured value.There is a certain difference between the two,but the maximum relative error does not exceed 15%.The numerical simulation has a good agreement with the actual measurement,which indicates that the method is scientific and feasible.The numerical simulation of the outdoor environment is carried out,and the distribution of the outdoor environment under different working conditions is obtained,analyzed and summarized.The influencing factors of the outdoorenvironment are studied,and the impact on the human body is evaluated.The improvement strategies is proposed based on the final result.The results show that the simulation results of outdoor wind environment,acoustic environment and light environment basically meet the requirements of relevant standards,and appropriate improvement measures can be made to provide more comfortable outdoor environment for residents;and the heat island intensity of outdoor thermal environment is higher.Relevant improvement measures should be taken,and as long as the overall construction plan remains unchanged,trees can be planted as much as possible,sunshades can be built for outdoor sites,and greening and water area can be expanded to improve the outdoor thermal environment and improve the comfort and satisfaction of residents.The quality of the outdoor environment of residential buildings plays an important role in the energy consumption of buildings and the quality of the living environment of users.Therefore,this paper conducts preliminary research on the outdoor environment based on the demand of green buildings,and proposes relevant influencing factors and improvement measures to provide ideas and references for research on improving building energy efficiency and increasing human comfort.