西安建筑科技大学学报(自然科学版)

本文主要探究城市户外空间小气候因子(空气温度、相对湿度、平均风速)与人体热舒适性的相关性,厘清与人体热舒适性影响最相关的小气候因子,并分析其影响的主要原因和具体改造策略.选取南高淳老街作为研究对象,并选择冬夏两季的典型气象日对历史街区小气候因子进行实测研究,并通过软件rayman计算出人体热舒适性指标(生理等效温度),用线性回归的方式分析出生理等效温度与小气候因子的相关性.结果表明空气温度对于小气候的影响具有较大差异性,即关联性最高,相对湿度次之,平均风速最不明显.影响这一结果的主要原因有建筑高度、建筑方位及组合、植被覆盖率、下垫面等,并且针对每个测点的现状提出具体的改造策略,能缓解历史街区小气候状况,也能为景观改造提出新的思路.

(Research objective)This paper mainly explores the correlation between urban outdoor space microclimate factors and human body thermal comfort, clarifies the microclimate factors most related to human body thermal comfort, and analyzes the main causes of its influence and specific transformation strategies.(Method)Gao Chun Old Street in Nanjing was selected as the research object, and the typical weather day in winter and summer was selected to measure the microclimate factors in historical blocks. The thermal comfort index(physiological equivalent temperature)of human body was calculated by software rayman. The correlation between physiological equivalent temperature and microclimate factor was analyzed by linear regression.(Result)The results show that the influence of air temperature on microclimate is the highest, the relative humidity is the second, and the average wind speed is the least obvious.(Conclusion)The main reasons that affect this result are building height, building orientation and combination, vegetation coverage, underlying surface and so on, and put forward specific reconstruction strategies for the present situation of each measuring point, which can not only alleviate the microclimate situation of historical blocks, but also put forward new ideas for landscape reconstruction.

引言
1 研究方法
2 结果与分析
3 结论与讨论

图1 测点分布图<br/>Fig.1 Distribution of measuring points

图1 测点分布图
Fig.1 Distribution of measuring points

表1 高淳老街冬夏两季测点现状表<br/>Tab.1 Status of winter and summer measuring points in Gaochun Old Street

表1 高淳老街冬夏两季测点现状表
Tab.1 Status of winter and summer measuring points in Gaochun Old Street

图2 冬夏两季问卷调查人体热舒适分布比例<br/>Fig.2 Distribution of Heat Comfort in Human Body by Questionnaire in Winter and Summer

图2 冬夏两季问卷调查人体热舒适分布比例
Fig.2 Distribution of Heat Comfort in Human Body by Questionnaire in Winter and Summer

图3 夏季各测点小气候因子实测分布图<br/>Fig.3 Distribution of microclimatic factors measured in summer

图3 夏季各测点小气候因子实测分布图
Fig.3 Distribution of microclimatic factors measured in summer

图4 冬季各测点小气候因子实测分布图<br/>Fig.4 Distribution of microclimatic factors measured in winter

图4 冬季各测点小气候因子实测分布图
Fig.4 Distribution of microclimatic factors measured in winter

图5 冬夏两季PET与小气候因子关联性分析图(以吴氏宗祠、仓巷入口为例)<br/>Fig.5 Analysis of correlation between pet and microclimate factors in winter and summer(Wu ancestral Hall,Cang Lane entrance)

图5 冬夏两季PET与小气候因子关联性分析图(以吴氏宗祠、仓巷入口为例)
Fig.5 Analysis of correlation between pet and microclimate factors in winter and summer(Wu ancestral Hall,Cang Lane entrance)

表2 各测点相关改造策略<br/>Tab.2 Relevant Improvement Strategies

表2 各测点相关改造策略
Tab.2 Relevant Improvement Strategies

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引言

1 研究方法

2 结果与分析

3 结论与讨论

期刊信息