Summary: | 碩士 === 國立高雄應用科技大學 === 土木工程與防災科技研究所 === 93 === This research is to study the difference of surface wind pressure of high-rise building between dynamic and static data. A model of T&C 85 building in the scale of 1/400 was set in the wind tunnel of ABRI(Architecture & Building Research Institute, Ministry of Interior) Boundary roughness elements were arranged in front of the test section in the wind tunnel to generate boundary layer. The model was set on the turntable in the test section. An electronic scanning system was used to get the surface wind pressure of each point on the model simultaneously. The data of each point at a definite time is called dynamic wind pressure because the value is different for time. For each point, the average of all the values got at different time is called static wind pressure. The result shows that:(1)For the wind ward face, the spreading tendencies of both dynamic and static surface pressure are the same;the pressure value is higher with the height gets higher;the pressure is highest in the middle of the model and decreases progressively to the left and right sides. (2)For the back ward face, the suction is larger near the edge. with the height gets higher, the suction gets larger. (3)For the side faces of the model, the largest suction occurs near the edges. (4)When the degree of wind attack increases, the upper part of the model starts to generate suction earlier than the lower part.
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