Analysis And Optimization Of Summer Thermal Environment In Street Space Of Historical Blocks

The historical block is a carrier of urban historical memory.With the improvement of people's living standards and the awareness of cultural relics protection,the protection of traditional neighborhoods in cities has also received more and more attention.The establishment of historical blocks in various places is the most intuitive performance.The research work in most of the historical blocks is focused on the protection of traditional features,but lacks attention to the perception of microclimates in historical blocks.There are a large number of urban aboriginal life in the historical block.As a window of the city,there will be a large number of tourists coming here.To create a good micro-climate environment and to improve the thermal comfort inside the neighborhood,which is conducive to adjusting the regional climate and improving the experience.The sense of experience inside the block makes it better to be a city card,driving the overall development of the city.Therefore,this paper chooses Furongjie--Bahuazhou Historical and Cultural Block in Jinan City as the research object,combined with the renovation of historical blocks,through the field investigation,on-site measurement and software simulation,etc.,from the perspective of summer street space thermal environment optimization for the renovation of historical blocks.The paper divided into the following main contents:1.At the theoretical level,the research methods and evaluation methods of thermal environment research in general urban blocks are introduced.Through literature review,the research work on thermal environment and microclimate in historical blocks in China are summarized,and the development of research in this field is analyzed.The difference between the thermal environment optimization of historical blocks and the optimization of thermal environment in general urban blocks is proposed.And proposed the research technology routebased on the research content of this paper.2.Through the on-the-spot investigation and literature research,the status quo of the Furongjie--Bahuazhou historical and cultural block in Jinan was analyzed.The analysis covers the development history,block structure,street size of the historical block,and various types of influence on the thermal environment.Based on the statistical analysis of the basic spatial data of the street space in the historical block,the topological relationship of the street space is found,and the typical street space model of the historical block is established.3.Based on the previous research,the thermal environment measurement of the historical block is carried out.From the three aspects of the influence of plants and water bodies on the summer street space thermal environment and the influence of solar radiation on the street interface materials,and the effects of different underlying surface factors on the thermal environment were analyzed.4.Using the microclimate simulation software ENVI-met to simulate the summer thermal environment of a typical street space model in a historical block and a series of summer thermal environment optimization measures,using a series of methods such as chart display,parameter comparison,linear regression,etc.The simulation results are analyzed,and the optimal design strategies of summer thermal environment in the street spaces of historical blocks with different spaces and different indicators are proposed.This paper analyzes and screens the summer thermal environment optimization measures of street spaces in historical blocks through the combination of on-site measurement and software simulation,so that the conclusions can be used as the basis of the design in the renovation of the historical block,and also hope for other the optimization study of summer thermal environment in historical blocks has certain guiding significance.