2015/10/3 3.3.3 Influences of crosswind 3.3.3 Influences of crosswind Tall Building Bulding yibration by Equivalent later oad 3.3.3 Uncomfortable feeling control 035 -Corner(no damper） caused by wind excitation -Comer with damper) 05g Acceptable 5/w -Center(with damper） 0.05 (mp) 8101 110100 Average Storm No./year 76-story Columbia Towor ith damper Taipei 101- Taipei101 上上 T=2元 Vg 本课件版权归作者所有，仅供个人学习使用，请勿转载。 9 2015/10/3 9 3.3.3 Influences of crosswind Airflow Vortex Tall Building Wind Wind action on Tall Buildings 3.3.3 Influences of crosswind wind Bldg. Vortex Equivalent lateral load Dis. Building vibration by Equivalent lateral load  Tall building under wind load, cross direction wind excitation generated by air eddy current;  unstable air flow; 3.3.3 Uncomfortable feeling control caused by wind excitation Acceleration of wind excitation 0.005g 0.005g～ 0.015g 0.015g～ 0.05g 0.05g～ 0.15g >0.15g body reaction No sensation Have sensation annoying Very annoying unbearable Buildings amax（m/s2） residence, department 0.15 office, hotel 0.25 《Technical specification for concrete structures of tall buildings》 table4.6.6 76-story Columbia Tower with damper Corner ( no damper) Corner ( with damper) Corner ( with damper) sensible Center ( with damper) Acceptable Center ( no damper) Acceleration m/s 2 Average Storm No. /year Taipei 101 —— http://epaper.ce.ntu.edu.tw/vol.21/101d amper-1.html L T 2 g   Taipei 101 —— 本课件版权归作者所有，仅供个人学习使用，请勿转载