大型綠地行人風場受高層建築物影響之研究-以台中市市民廣場為例

The Influence on Wind Field at Pedestrian Level in Large Green Affected by High Rise Building-Take Civic Plaza Park in Taichung City as an Example

楊子嫺(Yang-Tzu Hsien)

指導教授 ： 包匡

朝陽科技大學/設計學院/建築及都市設計研究所/碩士(2011年)

摘要

近年來，有關風場環境及行人舒適度之評估研究各界已做了相當程度的努力，並且紛紛提出不同的評估結果以及改善方式。但是都市中建築物高度及其周邊狀況各有不同，以高樓或超高層建築而言，對其周遭環境微氣候變化將產生相當之影響，目前有相當多的研究是以建築群體及單棟高層建築物為主，對其周邊風場對行人舒適度之探討，卻尚未以大片公園綠地緊鄰高層建築物之空曠環境風場做過任何相關性的評估研究，故此為一項值得探究的議題。
本研究擬以都市中心大型公園及綠地並鄰近超高層建築物之環境進行探討，選取台中市市民廣場綠地為主要探討之案例，因其鄰近世華國際大樓，將造成的環境風場變化，本研究以現場實測方式進行行人高度之風速量測;並取得中央氣象局資料以大氣邊界層理論來進行轉換行人高度之風速，二者相互比對其差異性，以獲得合理的數據。在風洞試驗中使用被動裝置，符合大氣邊界層風速剖面相似性的模擬要求，進行風場環境的模擬量測，進一步配合基地的全年主要風向進行不同季節之風向模擬，量測行人風場環境風速。
本研究目的是以現場量測風速數據為當季基礎值，再利用風洞試驗進行取得各季模擬風速，以舒適度標準對基地及周邊環境各位置點進行比較，落實對大型綠地行人風場舒適性評估及預測。以供未來規劃發展之參考。

關鍵字

現場實測 ； 大氣邊界層 ； 行人風場 ； 大型公園綠地

並列摘要

In recent years, some researchers put a lot of efforts on pedestrian comfort in the environmental wind field. So, there are amount of research and assessment articles have been presented. They offered various improvements and different comfort criteria on this issue. The urban configurations and surroundings are changeable. Building’s height is changing and their surroundings are changed as well. These conditions caused the microclimate to be changed in the neighbor area. This research is aimed at large green area which is near a super high rise building to discuss the wind field on pedestrian level. The effects may cause different comfort to the people in the area. For there are not enough studies and discussions to be processed yet, therefore, this issue is worth to study for the people.
This research takes Citizen Plaza which near a 175m height Shr-Hwa International Tower as an example to study. The researchers use proper instruments to measure the wind speed in the field. Converting the Central Meteorological Bureau weather report data with the atmospheric boundary layer theory, we can have the pedestrian wind speed. Comparing these measured values and covering data in order to have reasonable numerical values as for wind tunnel experiment wind speed bases. All the passive devices are prepared according to the atmospheric boundary layer theory to fit the similarity law in order to do the experiment. The researcher take major wind direction in whole year in this city to measure the environment wind filed to have wind speed at pedestrian level.
The purposes of this research are to have a field measured wind speed as the seasonal data for base. Using the wind tunnel experiment to have other seasonal simulation data, we take these data to compare with the standard of pedestrian comfort in order to have suitable assessment and analysis of the pedestrian comfort in this large green area. The results can be used as references for outdoor planning and design.

並列關鍵字

atmospheric boundary layer. ； wind tunnel experiment ； pedestrian level wind ； large park green

參考文獻

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