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| Received:November 20, 2014 Revised:December 29, 2014 |
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| DOI：10.7511/jslx201602009 |
| KeyWord:ESWLs BESWL RESWL background-resonant coupling component inertial wind load method |
| Author | Institution |
| 李寿科 |
湖南科技大学 土木工程学院, 湘潭 |
| 李寿英 |
湖南大学 风工程与桥梁工程湖南省重点实验室, 长沙 |
| 孙洪鑫 |
湖南科技大学 土木工程学院, 湘潭 |
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| Abstract: |
| For overcoming the defect of traditional three components method and inertial wind load method,a refined three-components procedure is proposed to determining ESWLs by stochastic dynamic method.The ESWLs of opening roof are calculated by refined three components method,it is shown that,(1) the GLF method can estimate the ESWLs on the equivalent node correctly,which can not estimate the ESWLs on the non-equivalent node,and it is not proper to large span roof.(2)The refined three-components method is described significantly with physical means,and is accurate as the same as full modes inertial wind load method in theory,as well as is more accurate than inertial wind load method with part of modes.(3) The ESWL is under-estimated about 10% by traditional three components method.The refined three-components method can take account into the coupling effect between BESWL and RESWL,which is more accurate than traditional three components method,,which can be used successfully in the wind resistance of large span roof. |
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