2012 Fiscal Year Final Research Report
Impact of wind load increasing due to super gusty wind related withtyphoon and tornado on buildings
| Project/Area Number |
22360230
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Building structures/materials
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| Research Institution | Kyushu University |
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Principal Investigator |
MAEDA Junji 九州大学, 人間環境学研究院, 教授 (40128088)
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| Co-Investigator(Kenkyū-buntansha) |
TOMOKIYO Eriko 九州大学, 人間環境学研究院, 助教 (30346829)
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| Project Period (FY) |
2010 – 2012
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| Keywords | 荷重論 / 風荷重 / 耐風工学 |
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| Research Abstract |
Compared with a case under a slowly rising gust, bigger wind force acting on a structure is generated under a short-rise-time gust. This is called the overshoot of wind force. The overshoot phenomenon was reproduced using a specially-equipped wind tunnel test and the overshoot force on several specimen of simple shape was compared with an usual wind force by the overshoot coefficient. The mechanism of the overshoot force was revealed by numerical simulation of the experimental results and it was proved that overshoot of wind force was one of the factors of gust damage expansion from analysis of strong wind observation record.
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