中文摘要：

人口的高密度聚集是亚洲城市的重要特征，且中心区存在着规模、等级及形态的较大差异，但是在城市中心区空间形态丰富复杂和类型多样化的现象背后，其核心空间结构却表现出一定的组织逻辑和形态规律，可以凝结提炼出相应的空间原型。通过对亚洲200个典型城市中心区空间结构的定量分析与梳理，揭示其非均衡性、自适应性、演替性和自组织性等特征，并凝结城市中心区在演替过程中形成的四种空间结构的原型范式——单核结构、圈核结构、轴核结构和极核结构原型，以及在不同空间形态下衍生出的各种亚结构原型。在此基础上，剖析城市中心区空间结构原型演替过程中的内在机制，形成阶梯状的演替过程、垂直脉的演替模式、螺旋式的演替趋势，以上构成了亚洲城市中心区演化升级的基本框架。旨在全面解释中心区的结构原型与演替规律性。

英文摘要：

High population density and aggregation is a key character of Asian cit- ies but cities vary in terms of scale, rank and forms of central districts. However, despite the differences, the nuclear structure of central districts demonstrates cer- tain spatial logic and a few spatial prototypes can be summarized. Based on quan- titative analysis of 200 central districts in Asia, this paper reveals the following spatial features： non-equilibrium, self-adaptability, succession and self-organization. Four kinds of prototypical patterns of spatial structure can also be summarized： monocentric structure, circle-core structure, axis-core structure and agglomeration- core structure and several sub-structure prototypes are also evident. In addition, the paper further analyzes the succession mechanisms of different spatial structure prototypes and suggests three evolvement processes, namely the ladder-pattern pro- cess, the vertical-venation process and the spiral-pattern process.