基于分形理论的城市滨江地带风貌控制——以重庆市两江四岸地带为例

Style Control of Urban Waterfront Based on Fractal Theory:A Case Study on the Two Rivers and Four Zones of Chongqing

滨江区域是反映城市风貌的重要地带,具有二维视觉关系的"界面"是风貌认知与控制的重要对象。以重庆两江四岸地带为例,借鉴建筑类型学的分类思想,以视域密度法计算"界面片段"景观密度值,建立界面类型体系;运用分形几何学的量化手段,通过"维数"认知界面规律;并同时指出界面控制的对象是形态关系,控制要素包括形态关系的控制要点、形态轮廓的维数和界面组成部分的明度三部分。以此为基础,对重庆两江四岸地带风貌控制提出了一些有效的方法和建议。

The waterfront area is important for the presentation of city style.The ＂interface＂ with a two-dimensional visual relationship is a significant agent to show and control the style.Through the case of the two rivers and four zones in Chongqing,this article draws on the classification of architectural typology,calculates the landscape density values of ＂interface clips＂ through the visual density method in order to establish the system of interface type;and applies the quantitative means of fractal geometry to understand the interface law.It also points out that the control agent of interface is the relationship of forms rather than some specific combination,and the control elements includes control points of the relationship of forms,dimensions of the shape contour and the brightness of interface components.Finally,it puts forward some applicable methods and recommendations of style control for the two rivers and four zones in Chongqing.