Through data collection, case study and field research, we focus on gray space of architecture based on green rainwater infrastructure. After introducing the concept, principle and composition of the green rainwater infrastructure and the basic connotation of the gray space, the wisdom of ancient Chinese buildings and communities in rainwater utilization are introduced. After the comparison of traditional gray space and the one based on rainwater utilization, three gray space models based on green rainwater technology facilities are summarized, such as separation-association based on the landscape function, half association based on purifying rainwater to drainage and complete association based on recycling rainwater. Finally, we explain and confirm three models through the rain and sewage separation system and purification system in the courtyard of Sidwell Friends School.%该文通过资料收集、案例分析与实际调研等方法重点研究了基于绿色雨水基础设施利用的建筑灰空间.在介绍了绿色雨水基础设施概念、原理与组成以及灰空间基本内涵后,引出中国古建筑及建筑群在雨水利用方面的智慧.继而对传统灰空间与基于雨水利用下的灰空间进行对比研究,归纳出基于绿色雨水技术设施的三种灰空间模式:基于景观作用的分离联系型、基于净化排流的半联系型以及基于循环利用的全联系型.最终通过赛威尔友谊中学雨污分流净化系统这一案例诠释并印证了三种模式.
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