Study On Intensity Control Of Urban Construction Land Based On Urban Sky Visual Field

On the vast sky,natural landscape scenery overlooking the natural pursuit of mankind."Heaven and Man","Mountain King revealed" reflects the integration of human,urban,landscape landscape,Daofa natural needs.Since the modern industrial revolution,with the development of land economy and the emergence of high-rise buildings,the urban space environment has experienced some recession,resulting in a narrow field of vision,urban heat island effect intensified and low quality urban living environment,The visual sense of "depression" and the "sense of closeness" in the city.Research shows that the openness of the sky can improve the urban space quality,strengthen the physical environment balance and enhance the psychological feelings of residents.China is a large population,high-intensity land use in line with the basic law of urban development in China,but the city open demand can not be ignored.How to keep the city gathered in a compact form of function and make the public to try to get a comfortable visual experience is one of the important problems facing urban planning,so the sky visibility,line of sight openness and other visual openness needs increasingly attention.At present,the intensity control of domestic urban construction land is mainly determined by the key factors such as building height,floor area rate and so on,which are influenced by urban image and style.However,these indicators are often based on the economic interests of experience or plots.Of the scientific basis,especially for landscape rich landscape of the city even more hasty and inadequate.Therefore,based on the urban sky viewable area and the rich mountainous area in the city,this paper uses the three-dimensional model of urban terrain and the spatial analysis technology in GIS,from the macro,meso and micro levels to the landscape corridor,The building height and the volume rate are analyzed,and the quantitative relationship between the visible area of the city sky and the building height and the plot volume rate is explored.Not only to increase the domestic scholars on GIS and3 D analysis of the application of technology awareness,but also for urban construction land intensity control to provide "other mountain stone" use.Based on the above research background and ideas,the paper first elaborates the existing research foundation and the research framework of the paper.Secondly,it re-cognizes the visible field of the city sky and solves the core problem of "what is the sky visual field",Environmental science,urban planning and architecture and other disciplines to elaborate its concept connotation,and from the improvement ofspace environment quality,to strengthen the physical environment balance,enhance the psychological feelings of residents in three aspects of its role,and from the 3D modeling,mathematical analysis,fish Eye lens shooting,GPS signal estimation to explore the measurement method.Then,based on the urban terrain data,the three-dimensional model of terrain is constructed,and the six landscape corridors of the city are explored from the macroscopic aspect.The spatial control technology is used to establish the height control And then the statistical model between the visible area and the volume ratio of the sky is constructed,and the inverse index between the two is determined.Function relation model,and the volume ratio interval of each land is obtained.The second core issue in this paper is also the most critical issue,namely,"Quantitative relationship between sky visible and building height,floor area ratio".Finally,the results of the study are applied to the urban area of Bay,and the construction height,volume and plot volume rate of the existing urban area are analyzed.The conclusion is as follows:(1)The overall building height is suitable for the main corridor(2)Most of the plot area in the urban area is moderate,and the floor area ratio of the surrounding area of Lingxiu Lake is too high.At the same time for the above shortcomings to propose solutions,such as high-rise buildings can be transformed through the roof and the mountain similar to the shape,but also can increase the building of the three-dimensional green building so that the building and the mountain coupled together to build a mountain background;The high rate of land through the building arrangement,building volume and architectural space shape control to achieve the "mountain view revealed" effect.In conclusion,this study is based on the visible view of the sky,and uses GIS-3D technology and 3D visualization model to determine the viewing corridor,the building height and the volume rate from the macroscopic,meso and micro levels.Effective basis...