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Title: | Typhoon- and temperature-induced quasi-static responses of a supertall structure | Authors: | Su, JZ Xia, Y Zhu, LD Zhu, HP Ni, YQ |
Issue Date: | 15-Jul-2017 | Source: | Engineering structures, 15 July 2017, v. 143, p. 91-100 | Abstract: | Wind loads and the associated load effects on supertall structures are key factors in structural design. In practice, typhoon-induced quasi-static responses measured from the field mix with temperature-induced responses because temperature varies significantly during a typhoon event. The mixed responses complicate the assessment of the wind loading effects and the separation of the two load effects is difficult in practice. In this study, the wind- and temperature-induced quasi-static responses of the 600 m-tall Canton Tower are investigated using a comprehensive long-term structural monitoring system installed on the structure. The structural responses (stresses and displacement) obtained from the field monitoring system during a strong typhoon are presented. The temperature-induced responses are calculated by applying a temperature loading model to the finite element model of the structure. The purely typhoon-induced quasi-static responses are then separated from the total measured responses by subtracting the temperature-induced ones. It shows that the typhoon-induced quasi-static responses of the supertall structure are slightly smaller than the temperature-induced responses in a typical sunny day. The typhoon-induced quasi-static displacement obtained from the field is also compared with the counterpart from the wind tunnel test on an aeroelastic model of the full tower. | Keywords: | Supertall structure Temperature effect Wind effect Field monitoring Quasi-static response |
Publisher: | Pergamon Press | Journal: | Engineering structures | ISSN: | 0141-0296 | EISSN: | 1873-7323 | DOI: | 10.1016/j.engstruct.2017.04.007 | Rights: | © 2017 Elsevier Ltd. All rights reserved. © 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/. The following publication Su, J. Z., Xia, Y., Zhu, L. D., Zhu, H. P., & Ni, Y. Q. (2017). Typhoon-and temperature-induced quasi-static responses of a supertall structure. Engineering Structures, 143, 91-100 is available at https://doi.org/10.1016/j.engstruct.2017.04.007. |
Appears in Collections: | Journal/Magazine Article |
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Xia_Typhoon_temperature_Quasi-static.pdf | Pre-Published version | 1.56 MB | Adobe PDF | View/Open |
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