【作者】 黄艳；

【导师】 陈勇；

【作者基本信息】 浙江大学 ， 建筑与土木工程（专业学位）， 2014， 硕士

【摘要】 建筑风环境主要包括室外风环境和室内自然通风,室外风环境关系到行人舒适性问题甚至是安全问题。建筑风环境与建筑物的外形、尺寸、建筑物之问的相对位置以及周围的地形地貌有着很复杂的关系。本文主要通过一系列的风洞试验来模拟与分析高层建筑与住宅小区人行高度处风环境的相互影响。研究高层建筑对小区周围人行高度处风环境的影响时,以住宅小区横向通道、纵向通道及拐角区域三个区域为研究对象,变化高层建筑的高度、高距比及宽度比三个参数,通过比较平均风速比、最大风速比、风速比变异系数三者的变化来评价住宅小区周围人行高度处风环境的变化,得出三个参数对住宅小区风环境的影响。研究结果显示高层建筑高度增大会引起住宅小区风环境恶化,当高距比小于2时高层建筑对住宅小区风环境影响较小,高层建筑宽度比越大,不同高距比下风速比分布的越离散。研究住宅小区对高层建筑周围人行高度处风环境的影响时,以高层建筑周围拐角区域、前面区域、背面区域及侧面区域四个区域为研究对象,变化高层建筑的高度、住宅小区的高距比及高层与住宅的宽度之比三个参数,通过比较平均风速比、风速比变异系数及最大风速比三者的变化来评价高层建筑周围人行高度处风环境的变化,得出三个参数对高层建筑风环境的影响。研究结果显示高层建筑高度增大会使得高层建筑周围风环境恶化,高距比在0.52附近时住宅小区对高层建筑周围人行高度处风环境影响较小。更多还原

【Abstract】 Wind environment includes two interrelated parts, outdoor’s and indoor’s. On one hand, the quality of wind environment around the buildings has significant effects on pedestrian comfort even safety. Wind environment around buildings has a very complicated relationship with the shape dimensions of the buildings and relative position between the buildings, as well as the landform around. In this paper, it is aimed at simulate and analyze the interaction between the high-rise building and the residential quarter on the pedestrian level wind environment through a series of wind tunnel tests.In the study of how the high-rise building produce an effect on the pedestrian level wind environment around the residential quarter, transverse passages, vertical passages, and the corner regions around the residential quarter become the objects of study. Through changing the three parameters:high-rise building’s height, height-separation-ratios and width-ratios, compare the changes of average wind speed ratio, maximum wind speed ratio, and the coefficient of variation of the wind speed ratio, evaluate the changes of the pedestrian level wind environment around the residential quarter, and draw a conclusion about the effect of three parameters to the pedestrian level wind environment around the residential quarter. The results show that the increase height of the high-rise building created adverse effects on the pedestrian level wind environment around the residential quarter. While if the height-separation-ratios less than two, the pedestrian level wind environment around the residential quarter stays at a good level. A larger width-ratio leads to a larger variation of the wind speed ratio during different height-separation-ratios.In the study of how the residential quarter produce an effect on the pedestrian level wind environment around the high-rise building, the corner regions, the front regions, the back regions and the side regions around the high-rise building become the objects of study. Through changing the three parameters:high-rise building’s height, height-separation-ratios and width-ratios, compare the changes of average wind speed ratio, maximum wind speed ratio, and the coefficient of variation of the wind speed ratio, evaluate the changes of the pedestrian level wind environment around the high-rise building, and draw a conclusion about the effect of three parameters to the pedestrian level wind environment around the residential quarter. The results show that the increase height of the high-rise building created adverse effects on the pedestrian level wind environment around the high-rise building. When the height-separation-ratios are around0.52, the pedestrian level wind environment around the high-rise building stays at a good level.更多还原