Evaluation of Random Comfort Criteria to Wind-Induced Horizontal Vibration of buildings

• Main Authors: Po-An Tsai, 蔡伯安
• Other Authors: Jong-Cheng Wu
• Format: Others
• Language: zh-TW
• Published: 2011
• Online Access: http://ndltd.ncl.edu.tw/handle/14569599751249677309

碩士 === 淡江大學 === 土木工程學系碩士班 === 99 === In addition to security considerations of building, the use of personnel comfort in the structural design, which is caused by wind disturbance in some circumstances, is also an important indicator. With regard to the impact on vibration of building results from the wind, the regulations of comfort, has long been unclear. On account of that besides physical factors, includes many other factors such as psychological factors and so on. The standard of wind comfort criteria in Taiwan now is set of 5 mm / sec² acceleration, with its corresponding return period of six months. In order to establish local data as a reference for future improvement of wind norms, this study makes use of the vibration simulator at Wind Engineering Research Center in Tamkang University. We set up a methodology and process, so as to achieve comfort threshold and return cycle; on basis of random vibration tests to build up comfort criteria (2%, 5% and 50% against the percentage) and corresponds to the Return Period in comparison with Simple Harmonic Motion. By the results that: (1) The comfort threshold will change with different motion-frequencies(0~1Hz); (2) The before-and-after direction of Simple Harmonic Motion is more sensitive than the left-and-right direction, but random motion is not obvious. The resulting value for the Return Period by the method of this paper appears to be too stringent with comparison to the standard of real life. The future continuation of the study wish to use the data as a reference and in the hope of obtaining plans that are more in line with standard requirements of the Return Period.