摘要
高层高密建筑群普遍存在于现代城市中,大量人工建造物的存在加剧了城市建筑群微环境的热堆积,造成建筑群内热环境恶化。本文选自上海某建筑群,对相连建筑形成的半包围空间的热环境进行夏季实测研究,分析该空间内温度分布。结果显示,建筑围护结构与地面的蓄热对其附近空气层温度的影响非常显著。在本文的研究范围内,该影响区域在阳光直射区为3 m,阴影区为2 m,地面蓄热对空气温度的的影响高度为10 m。该结论为室外热环境的调节与建筑群设计提供依据。
High-rise and high-density building groups exist widely in modern cities. These vast artificial buildings have intensified the heat stack in micro-environment of building groups,worsening the thermal environment. This paper selects a building group in Shanghai and conducts an on-site investigation on the summer thermal environment of a semi-enclosed space surrounded by adjacent buildings to analyze the temperature distribution in this. According to analysis results,heat accumulation of building envelopes and ground has significant influence on nearby air temperature. Based on the data of this paper,the influence extent is 3 m when building envelopes are exposed to direct sunlight,and 2 m in shaded areas. Besides,the ground heat accumulation is influential on air temperature within 10 m. These conclusions will provide a basis for outdoor thermal environment conditioning and buildinggroup design.
出处
《建筑科学》
CSCD
北大核心
2017年第8期23-28,共6页
Building Science
基金
国家自然科学基金项目"东南沿海城镇高层高密度建筑群辐射热过程及其对建筑得热影响"(51578385)
关键词
室外热环境
蓄热
长波辐射
outdoor thermal environment
heat accumulation
long-wave radiation
