Research On The Design Of Riverside Viaduct Attached Space In Jialing River Section Of Chongqing Main Urban District

With the deepening of urbanization in China,the traditional plane transportation has been unable to meet the increasing demand of traffic expansion,then the viaduct is produced.Although the construction of viaduct alleviates the urban traffic pressure,it also brings a series of urban problems,such as the destruction of the original street image,the split of urban texture,the aggravation of noise and pollution.At the same time,the attached space of viaduct appears in the city as a by-product of viaduct construction.This part of the space is the link between the areas which are split by the viaduct.The reasonable design of it can effectively improve the relationship between viaduct and the city.However,at the beginning of viaduct planning and design,most of the attached space of viaduct was ignored,which had not been given clear functions,special planning and management.It has become a negative space and gray area of supervision in the city,resulting in space wasting and many social problems.As a mountainous riverside city,Chongqing has built a large number of riverside viaducts to develop urban traffic in recent years,forming a large area of "cement forest" in the riverside area,seriously damaging the overall landscape effect of the city.At the same time,the high standard flood control requirements and complex terrain make the huge drop between the riverside road surface and the water surface,which cut off the connection between the city and the water environment,making it difficult for people to reach the near water area.In addition,the encroachment of Viaduct on the river bank also has an impact on the ecological environment of the waterfront area.Therefore,the reasonable planning and design of the attached space of the riverside viaduct is of great significance in beautifying the riverside coastline,stitching up the landscape vein between the city and the river,and repairing the damaged riverside ecosystem.This paper takes the riverside viaduct attached space in Jialing river section of Chongqing main urban district as the research object.Based on the relevant theoretical research and case study,and through a detailed investigation and analysis of the space status,this paper summarizes the existing typical problems,and puts forward the targeted design principles and strategies,then guide the practice with the theory,and selects the representative road sections for the specific design plan transformation.First of all,this paper analyzes the environment of riverside viaduct attached space in Jialing river section of Chongqing main urban district,including the composition of the space,the limiting factors and the potential of its utilization.At the same time,the representative excellent practice cases are selected for research and analysis,providing practical reference for this paper.Then on the basis of the general analysis of the research object,the investigation and research are carried out on the road section from three aspects,including the current status of form space,function space and ecological space,so as to form a comprehensive understanding of the riverside viaduct attached space in Jialing river section of Chongqing main urban district and summarize the different status quo problems of different aspects,so as to provide a starting point for the later research.Then,according to the characteristics and existing problems of the space,the design principles of the auxiliary space of the riverside viaduct attached space in Jialing river section of Chongqing main urban district are put forward,including the five principles of integrity,safety,ecology,functionality and humanization,and the corresponding design strategies are put forward from the three aspects of form space,function space and ecological space.Finally,based on the three aspects of form,function and ecology,three representative sections are selected,and the summarized design strategy is applied to specific practice of the three sections.