削切法:一种街坊空间的城市设计方法

空间问题是城乡规划学科的核心问题之一。近年来,在规划实践快速增加和学科外延快速拓展的同时,对空间本体的研究,尤其是对空间设计方法的研究进展相对缓慢。本文基于国际典型城市街坊的空间形态比较研究,从空间的特征属性入手,阐述影响城市街坊空间形态的内在机制,依托自上而下的空间逻辑提出空间削切设计法,兼顾了土地经济性和空间功能美学需求,进而建构城市街坊空间设计的具体步骤:守边、退角、掏中、划场、定高、分裙,将其推进到可操作的层面。在此基础上,通过实践案例详细解析空间削切法在城市设计中的理性特征和应变方式。

CUTTING METHOD: A NEW METHOD FOR THE URBAN DESIGN OF BLOCK SPACE

Spatial problem has been one of the core issues in the field of urban planning. In recent years, in contrast to the rapid increase of planning practice and fast expansion of the discipline, the progress of research on spatial ontology, especially spatial design method is relatively slow. Based on the comparative study on spatial form of typical urban block, this paper begins with the characteristics of the space, and expounds the inner mechanism that influences the spatial form of urban block. Then it puts forward the space cutting design method based on the spatial logic from top to bottom, taking into account both the land economy and the aesthetic requirements for public space, and constructs the specific steps of urban block space design: keeping border, corner concession, excavating center, dividing site, setting height, and annex design. Finally, it advances to the operational level. On this basis, the rational characteristic and the strain mode of the spatial cutting method applied in urban design are analyzed throughout the practice case.