Landscape Design Of Bridge-portal Space In Nan’an District Of Chongqing

Chongqing,as a typical representative of mountain cities,has its unique natural conditions and complex topography,which shapes its urban spatial form different from that of plain areas,making it varied in spatial organization and spatial experience.At the same time,as the famous "bridge capital" in southwest China,"bridges" has become a distinctive city feature of Chongqing,and the bridge-culture has also become an integral part of Chongqing culture.Therefore,the study on the bridge-end portal space in Chongqing,a mountainous city,will become a topic worthy of attention for its increasingly prominent role in changing the understanding of the portal space in traditional design concepts and exploring the future role of mountainous city construction in improving the urban spatial structure and the image of urban features,regaining the ecological view of nature,improving the quality of urban space,enriching the experience of urban space,and inheriting the culture with local characteristics.For a long time,the construction department,management department and design organization of many cities in China have not paid enough attention to the bridge-end portal area of the city.They still hold the inherent concept that the bridge-end portal is only a window for a city to display its image,culture and development concept.They have failed to form a good promotion effect on the ecological environment,functional space and landscape experience of the city,and even caused many adverse environmental and social problems.At the same time,the urban open space formed by the bridge-end portal lacks reasonable positioning,high-quality design and effective management,which often makes it a "supplement" after road planning and architectural design,and has not been integrated into the urban open space system for overall consideration.Therefore,the article will focus on the theme of landscape design of bridge-end portal space in Nan ’an District of Chongqing City,and make a comparative analysis of the relevant research status at home and abroad.By using the methods of literature research,field research and case analysis,and taking the logic thought of "problemoriented strategy" as the leading factor,the article will summarize and sort out the main characteristics and common current problems of bridge-end portal space in Chongqing City,take seven typical bridge-end portal spaces in Nan ’an District of Chongqing City as the research objects,analyze various constituent elements of landscape design for each bridgehead portal space in Nan ’an District of Chongqing City,and try to formulate design countermeasures for landscape construction of bridge-end portal space in mountainous cities in Nan ’an District of Chongqing City.Examining its applicability in the landscape construction of bridge-end portals in mountain cities;Finally,six corresponding landscape construction strategies are proposed to provide practical theoretical guidance and solutions for follow-up research.The paper is divided into four parts,which are discussed according to the clues of putting forward problems,analyzing problems,solving problems and summarizing prospects.The first part is the first chapter of the thesis.This part gives an overview of the reason why the thesis was selected and the purpose and significance of the research.Clear the research object and define the related concepts.At the same time,the research methods and framework are elaborated.The second part is the analysis of problems,which is the second chapter of the thesis.Research and analyze relevant theories,refine theoretical basis,summarize landscape features of bridgehead portals and analyze common problems.The landscape characteristics part mainly traces back the development process of bridge-end portal landscape and clarifies the research status of its theory and practice,which can be summarized into six aspects: systematicness,identification,dynamics,ecology,culture and complexity.At the same time,based on the six characteristics,the main problems in Chongqing bridgehead portal landscape design are: lack of response to the urban spatial structure;Lack of modeling of typical portal landmarks;Lack of dynamic landscape sequence construction;Lack of consideration of urban ecological environment;Lack of expression of local characteristic culture;Lack of coordination of complex spatial conditions.The third part is to solve the problem which is composed of the third and fourth chapters of the article.It includes the case analysis of bridge-end portal landscape in Nan’an District of Chongqing and the related excellent case analysis at home and abroad.The case study of bridge-end portal landscape in Nan ’an District of Chongqing City is mainly aimed at seven bridge-end portal landscape in Nan ’an District of Chongqing City,they are the south portal of Cuntan Yangtze River Bridge;South portal of shibanpo Yangtze river bridge;East portal of East Watergate Yangtze River Bridge;East portal of Chaotianmen Yangtze River Bridge;The East portal of Dafosi Yangtze River Bridge;The South portal of Caiyuanba Yangtze River Bridge;Investigation and analysis of the east bridge-end of Egongyan Yangtze River Bridge.This paper makes a case analysis on the conditions,surrounding environment and landscape features of the bridgehead portal,sorts out and summarizes the problems in the design,and at the same time draws on the excellent practical experience at home and abroad to provide theoretical and practical support for the later design strategy.The fourth part is to summarise and prospect strategies which are in the fifth and sixth chapters of the thesis.This part is mainly based on the previous research,and puts forward targeted strategies for the existing six problems of bridge-end portal area in Nan’an District of Chongqing City.The design strategies are divided into six levels: city structure,city image,landscape sequence,ecological environment,cultural vitality and spatial integration.The design strategy of city structure includes reasonable connection of city system and construction of portal system.The design strategy of city image includes the optimization of portal image and the strengthening of environmental characteristics.The design strategy of landscape sequence includes two aspects——the sequence and scale.The design strategy of ecological environment includes the improvement of river ecological environment and the improvement of surrounding environment quality through greening.The design strategy of cultural vitality can be divided into cultural introduction of the unique landscape interest of mountain city Chongqing and remodeling of cultural sites around bridge-end portal.Finally,the design strategy of spatial integration includes the coordination of different industries and types of work and the coordination of spatial elements around the bridge-end portal.The last part mainly summarizes the main points mentioned above,and also makes a prospect for the following development of the research.