| 摘要: |
| 为揭示广场中不同遮蔽情况在太阳运行条件下，小气候及人体热舒适度的变化特征，根据天球模型、太阳视运动轨迹原理，在测点天空鱼眼照片上，叠加日轨图和天空图，绘制成天穹图。以上海广场为研究对象，通过对其夏季日间小气候的实地测量和热舒适度的计算，分析天空开阔度对日间小气候和热舒适度的影响，比较天空开阔度和太阳运行所在扇区天空开阔度对日间不同时刻小气候和热舒适度影响的差异，通过组间差异分析、相关性分析和热舒适度分析定位出对小气候和热舒适度影响最大的时间和天穹范围，为广场适宜性小气候设计提供更具体准确的设计思路和指导。 |
| 关键词: 风景园林 太阳视运动轨迹 天空开阔度 天穹扇区 广场小气候 |
| DOI： |
| 分类号:TU986 |
| 基金项目: |
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| Influence of Vault Sector on Summer Square Microclimate and Human Thermal Comfort |
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ZHANG Deshun, WANG Zhen
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Tongji University
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| Abstract: |
| This paper is to reveal the variation characteristics of microclimate and human thermal comfort under different shading conditions in the square while the sun is in orbit. According to the celestial sphere model and the principle of the trajectory of the solar apparent motion, we have superimposed the sun-orbit map and sky map on the sky fish-eye photos to draw a map of the sky. We took Shanghai Square as the object of study. Through field measurement of the summer daytime microclimate and calculation of the thermal comfort, we analyzed the influence of sky view factor on daytime microclimate and thermal comfort. We also compared the effects of sky openness and that of the sector in the sun’s orbit on the microclimate and thermal comfort at different times of a day. The most vulnerable time, range and spatial positions of the microclimate and human thermal comfort were positioned by inter-group difference analysis, correlation analysis and human thermal comfort analysis. They would provide more concrete and accurate ideas and guidance for the design of suitable microclimate for the square. |
| Key words: landscape architecture algorithms of the sun’ orbit sky view factor (SVF) vault sector square microclimate |
