Wind-resistant structural optimization of supertall buildings based on high-frequency force balance wind tunnel experiment
Engineering Structures, ISSN: 0141-0296, Vol: 248, Page: 113247
2021
- 16Citations
- 11Captures
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Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
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Article Description
The high-frequency force balance (HFFB) wind tunnel test is one of the most widely used techniques to estimate wind effects on supertall buildings. This paper introduces a wind-resistant optimal design method of supertall buildings based on HFFB wind tunnel experiments. Based on the HFFB wind tunnel test and wind-induced vibration analysis, it provides a reliable and efficient method for structural optimization of supertall buildings with different types of structural members and multiple constraints. Taking advantage of the classic linear mode shape assumption of the HFFB technique, this paper also presents an alternative routine that transforms all different types of constraints into a uniform frequency constraint, which significantly reduces the computational intensity while still offers acceptable accuracy of optimization results. Moreover, the sensitivity of the optimization results to the adopted basic wind pressure value is discussed. The total material cost of the optimized structure increases exponentially with the increase of the basic wind pressure, indicating that the structural costs of supertall buildings are quite sensitive to the adopted basic wind pressure for structural design and its value should be precisely determined by the wind climate analysis of the construction site.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/S0141029621013717; http://dx.doi.org/10.1016/j.engstruct.2021.113247; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85115933602&origin=inward; https://linkinghub.elsevier.com/retrieve/pii/S0141029621013717; https://dx.doi.org/10.1016/j.engstruct.2021.113247
Elsevier BV
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