宋亚程 韩冬青 庞志宇 宋哲昊 董亦楠

SONG Yacheng, HAN Dongqing, PANG Zhiyu, SONG Zhehao, DONG Yinan

居住型历史地段的城市更新具有小尺度、渐进式的特点。面对形态结构难以识别、空间再生难以决策的问题，本研究运用空间构型的方法对街道网络结构及其与地块面域之间的结构进行整合性认知。首先，本文基于深度、连接性和低连接率 3 个指标的聚类划分了街道网络的构型等级，在此基础上，结合地块与街道的结构关系得到了地块面域的构型等级。其次，将该方法运用于南京荷花塘和钓鱼台地段中，形态结构的特征得到了量化呈现。最后，针对上位规划落实、商业开发选址、社区设施提升、历史资源利用等 4 个方面的实践问题提出研判和建议。该方法不仅可以为居住型历史地段的形态认识和更新设计提供科学依据，还在先期启动决策、多角色参与互动、动态连续管控等技术工具研发方面具有进一步运用的潜力。

The urban renewal of residential historical districts has the characteristics of small scale and progressive. Facing the problems that morphological structure is difficult to identify and space regeneration is difficult to decide, this paper applies the method of spatial configuration to build an integrated cognition of the street network structure and its structure with the plot area. Firstly, based on the clustering of three indicators of depth, connectivity and low connection rate, the configuration level of the street network is divided. On this basis, the configuration level of the plot area is obtained by combining the structural relationship between the plot and the street. Secondly, this method is applied to the Hehuatang and Diaoyutai areas in Nanjing, and the characteristics of morphological structure are quantitatively presented. Finally, it makes judgments and suggestions on the practical problems of upper planning implementation, commercial development site selection, community facilities improvement, and historical resource utilization, and it provides planning implementation suggestions for pre-development and guides the selection and distribution of building types. This method can not only provide a scientific basis for the morphological understanding and renewal design of residential historical areas, but also has the potential to be further applied to development of technical tools such as early decision-making, multi-role participation and interaction, and dynamic continuous control.?

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