城市剩余空间的更新设计探索——以立交桥下空间为例
Exploration of the Renovation Design of Urban Surplus Space—Taking Underpass Space as an Example

伴随着城市化进程步入存量更新阶段、城市居民生活质量的提高和对高品质人居环境诉求的提升，城市发展中产生大量失落消极的城市剩余空间，如桥下空间、老旧社区的小微空间等。在“城市更新行动”的背景下，如何存量更新设计城市剩余空间、实现城市空间精细化治理成为了亟待解决的任务。本文以“城市更新”为背景，以“立交桥下空间”为对象，首先，明确城市剩余空间基本概念与类型；其次，阐述桥下空间更新设计对城市剩余空间的重要性，最后结合国内立交桥下空间的优秀实践案例，总结概括桥下空间的更新设计策略，并进一步系统提出城市剩余空间的综合更新途径。立交桥下空间作为城市中典型的剩余空间，对其更新设计不仅能够提升城市中剩余空间的利用率，还缓解城市用地紧张以及高质量空间治理。
As the urbanization process enters the stage of stock renovation, the quality of urban residents’ lives improves, and their demand for high-quality living environments increases, a large amount of lost and negative urban surplus spaces are generated in urban development, such as spaces under bridges and small micro spaces in old communities. Under the background of “Urban Renewal Action”, how to renovate and design the urban surplus spaces and achieve fine-grained governance of urban spaces has become an urgent task. Based on the background of “urban renewal”, this paper takes the “underpass space” as the object, firstly, clarifies the basic concepts and types of urban surplus spaces; secondly, expounds the importance of underpass space renovation and design for urban surplus spaces; finally, combining domestic excellent practice cases of underpass space renovation, the paper summarizes and summarizes the renovation design strategies of underpass space, and further systematically proposes the comprehensive renovation approach of urban surplus spaces. Underpass space is a typical surplus space in the city, its renovation and design not only can improve the utilization rate of urban surplus spaces, but also alleviate the land shortage and high-quality governance of urban spaces.