摘要
日照是影响城市形态的重要因素,然而现行单一刚性的日照规范管控常导致城市形态单调,而高密度城市环境中地块之间普遍存在的日照遮挡也很突出。基于对“日照罩面”的控制机制解析,研究通过Grasshopper参数化编程技术,探索结合“日照罩面”技术的城市设计方法,针对中国不同气候区典型城市气候信息,剖析日照时间、地理位置、地块形状等要素对罩面的影响机理,量化分析日照罩面的适用条件、内部容量潜力,并探索将此技术运用到城市设计实践案例中,从“地块-街区-片区”多尺度、通过不同“日照罩面”的有机组合,实现整体形态有序、日照品质可控的空间格局。研究表明,基于“日照罩面”的城市设计方法有利于兼顾城市形态优化与日照环境品质提升,助力存量更新阶段的城市绿色转型。
Solar access is a crucial factor influencing urban morphology.However,the rigid application of current solar access regulations often results in monotonous urban forms and significant overshadowing issues in high-density urban environments.This study investigates an urban design approach based on the control mechanism of“solar envelope”by integrating parametric programming techniques in Grasshopper.Considering typical climatic conditions across different climate zones in China,the study examines the impact of key factors such as solar duration,geographic location,and plot geometry on the formation of solar envelopes.A quantitative analysis is conducted to evaluate the applicable conditions and spatial capacity potential of solar envelopes.Furthermore,the study explores the practical implementation of this technique in urban design projects,achieving a well-ordered urban form and controllable solar access quality through multi-scale integration from plot to block and district levels.The findings suggest that the solar envelope-based urban design approach effectively balances urban form optimization with improved solar access quality,supporting the green transition of cities in the era of urban regeneration.
作者
李京津
王建国
LI Jingjin;WANG Jianguo
出处
《城市规划》
北大核心
2025年第9期94-102,共9页
City Planning Review
基金
国家自然科学基金重大项目课题四“高密度城市环境碳中和建筑技术原型构建”(52394224)
“城镇可持续发展关键技术与装备”重点专项2024年项目“多尺度建筑绿色性能云端模拟和智能优化软件”(2024YFC3809200)。
关键词
日照罩面
城市设计
参数化
solar envelope
urban design
parametric
