Nonlinear Wind Tunnel Tests of Cable-Supported Bridges
AbstractFollowing the collapse of the Tacoma Narrows Bridge due to an aeroelastic instability, it has been common practice to test cable-supported bridges in a wind tunnel to check the soundness of bridge designs with respect to wind dynamic actions. Due to their simplicity, versatility and cost eff...
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| Veröffentlicht in: | Journal of structural engineering (New York, N.Y.) N.Y.), 2023-10, Vol.149 (10) |
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| creator | Maheux, Sébastien King, J. Peter C. El Damatty, Ashraf Brancaleoni, Fabio |
| description | AbstractFollowing the collapse of the Tacoma Narrows Bridge due to an aeroelastic instability, it has been common practice to test cable-supported bridges in a wind tunnel to check the soundness of bridge designs with respect to wind dynamic actions. Due to their simplicity, versatility and cost effectiveness, section model tests have become the standard approach for testing bridges. More advanced testing techniques, like full-aeroelastic model tests, are only utilized for validation purposes toward the end of the design process. Nevertheless, some generalizations with regard to the behavior of the bridge are necessary in section model tests in order to reach such simplicity. One of them is that they assume a linear structural behavior of the bridge structure. This might be inaccurate for very long cable-supported bridges as the structural behavior of such bridges is governed by their cable system, which is geometrically nonlinear. Considering that span lengths are getting longer, it is believed that it is needed to develop a better understanding of the influence of geometric nonlinearities on the wind response of bridges. Thus, this paper presents an experimental assessment of the effect of structural nonlinearities on the aeroelastic stability and wind response of cable-supported bridges. At first, the development of a new experimental apparatus for nonlinear section model tests of bridges is discussed. Then, the results of nonlinear section model tests conducted using the experimental apparatus are presented. Three different suspension bridge configurations are tested. The first one is for a single-box girder suspension bridge, and the second and third ones are for two twin-box girder suspension bridges having different span lengths. By comparing the results of linear tests to those of nonlinear tests, it is possible to assess the effect of structural nonlinearities. It is found that structural nonlinearities can have an effect on the critical velocity for flutter. |
| doi_str_mv | 10.1061/JSENDH.STENG-12147 |
| format | Article |
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Peter C. ; El Damatty, Ashraf ; Brancaleoni, Fabio</creator><creatorcontrib>Maheux, Sébastien ; King, J. Peter C. ; El Damatty, Ashraf ; Brancaleoni, Fabio</creatorcontrib><description>AbstractFollowing the collapse of the Tacoma Narrows Bridge due to an aeroelastic instability, it has been common practice to test cable-supported bridges in a wind tunnel to check the soundness of bridge designs with respect to wind dynamic actions. Due to their simplicity, versatility and cost effectiveness, section model tests have become the standard approach for testing bridges. More advanced testing techniques, like full-aeroelastic model tests, are only utilized for validation purposes toward the end of the design process. Nevertheless, some generalizations with regard to the behavior of the bridge are necessary in section model tests in order to reach such simplicity. One of them is that they assume a linear structural behavior of the bridge structure. This might be inaccurate for very long cable-supported bridges as the structural behavior of such bridges is governed by their cable system, which is geometrically nonlinear. Considering that span lengths are getting longer, it is believed that it is needed to develop a better understanding of the influence of geometric nonlinearities on the wind response of bridges. Thus, this paper presents an experimental assessment of the effect of structural nonlinearities on the aeroelastic stability and wind response of cable-supported bridges. At first, the development of a new experimental apparatus for nonlinear section model tests of bridges is discussed. Then, the results of nonlinear section model tests conducted using the experimental apparatus are presented. Three different suspension bridge configurations are tested. The first one is for a single-box girder suspension bridge, and the second and third ones are for two twin-box girder suspension bridges having different span lengths. By comparing the results of linear tests to those of nonlinear tests, it is possible to assess the effect of structural nonlinearities. 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Peter C.</creatorcontrib><creatorcontrib>El Damatty, Ashraf</creatorcontrib><creatorcontrib>Brancaleoni, Fabio</creatorcontrib><title>Nonlinear Wind Tunnel Tests of Cable-Supported Bridges</title><title>Journal of structural engineering (New York, N.Y.)</title><description>AbstractFollowing the collapse of the Tacoma Narrows Bridge due to an aeroelastic instability, it has been common practice to test cable-supported bridges in a wind tunnel to check the soundness of bridge designs with respect to wind dynamic actions. Due to their simplicity, versatility and cost effectiveness, section model tests have become the standard approach for testing bridges. More advanced testing techniques, like full-aeroelastic model tests, are only utilized for validation purposes toward the end of the design process. Nevertheless, some generalizations with regard to the behavior of the bridge are necessary in section model tests in order to reach such simplicity. One of them is that they assume a linear structural behavior of the bridge structure. This might be inaccurate for very long cable-supported bridges as the structural behavior of such bridges is governed by their cable system, which is geometrically nonlinear. Considering that span lengths are getting longer, it is believed that it is needed to develop a better understanding of the influence of geometric nonlinearities on the wind response of bridges. Thus, this paper presents an experimental assessment of the effect of structural nonlinearities on the aeroelastic stability and wind response of cable-supported bridges. At first, the development of a new experimental apparatus for nonlinear section model tests of bridges is discussed. Then, the results of nonlinear section model tests conducted using the experimental apparatus are presented. Three different suspension bridge configurations are tested. The first one is for a single-box girder suspension bridge, and the second and third ones are for two twin-box girder suspension bridges having different span lengths. By comparing the results of linear tests to those of nonlinear tests, it is possible to assess the effect of structural nonlinearities. It is found that structural nonlinearities can have an effect on the critical velocity for flutter.</description><subject>Aeroelastic stability</subject><subject>Box girder bridges</subject><subject>Bridge failure</subject><subject>Cable-stayed bridges</subject><subject>Cost effectiveness</subject><subject>Critical velocity</subject><subject>Geometric nonlinearity</subject><subject>Model testing</subject><subject>Stability analysis</subject><subject>Structural engineering</subject><subject>Suspension bridges</subject><subject>Technical Papers</subject><subject>Wind effects</subject><subject>Wind tunnel testing</subject><issn>0733-9445</issn><issn>1943-541X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><recordid>eNp9kDFPwzAQhS0EEqXwB5giMbv1OY7jjFBKC6rC0CDYLNc5o1QhCXYz8O8JDRIb00l37717-gi5BjYDJmH-tF3m9-vZtljmKwocRHpCJpCJmCYC3k7JhKVxTDMhknNyEcKeMZYmoCZE5m1TVw0aH71WTRkVfdNgHRUYDiFqXbQwuxrptu-61h-wjO58Vb5juCRnztQBr37nlLw8LIvFmm6eV4-L2w01kMkDVda4DFOOqXHgFAcrmFBKymFjFdgE7c4N58Qo7iBjjpUplxkaa3AnpIyn5GbM7Xz72Q-l9L7tfTO81FyJJBZMJWxQ8VFlfRuCR6c7X30Y_6WB6R8-euSjj3z0kc9gmo8mEyz-xf7j-AZ9L2e3</recordid><startdate>20231001</startdate><enddate>20231001</enddate><creator>Maheux, Sébastien</creator><creator>King, J. Peter C.</creator><creator>El Damatty, Ashraf</creator><creator>Brancaleoni, Fabio</creator><general>American Society of Civil Engineers</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>FR3</scope><scope>KR7</scope><orcidid>https://orcid.org/0000-0002-7509-1379</orcidid></search><sort><creationdate>20231001</creationdate><title>Nonlinear Wind Tunnel Tests of Cable-Supported Bridges</title><author>Maheux, Sébastien ; King, J. 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Peter C.</creatorcontrib><creatorcontrib>El Damatty, Ashraf</creatorcontrib><creatorcontrib>Brancaleoni, Fabio</creatorcontrib><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>Journal of structural engineering (New York, N.Y.)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Maheux, Sébastien</au><au>King, J. Peter C.</au><au>El Damatty, Ashraf</au><au>Brancaleoni, Fabio</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Nonlinear Wind Tunnel Tests of Cable-Supported Bridges</atitle><jtitle>Journal of structural engineering (New York, N.Y.)</jtitle><date>2023-10-01</date><risdate>2023</risdate><volume>149</volume><issue>10</issue><issn>0733-9445</issn><eissn>1943-541X</eissn><abstract>AbstractFollowing the collapse of the Tacoma Narrows Bridge due to an aeroelastic instability, it has been common practice to test cable-supported bridges in a wind tunnel to check the soundness of bridge designs with respect to wind dynamic actions. Due to their simplicity, versatility and cost effectiveness, section model tests have become the standard approach for testing bridges. More advanced testing techniques, like full-aeroelastic model tests, are only utilized for validation purposes toward the end of the design process. Nevertheless, some generalizations with regard to the behavior of the bridge are necessary in section model tests in order to reach such simplicity. One of them is that they assume a linear structural behavior of the bridge structure. This might be inaccurate for very long cable-supported bridges as the structural behavior of such bridges is governed by their cable system, which is geometrically nonlinear. Considering that span lengths are getting longer, it is believed that it is needed to develop a better understanding of the influence of geometric nonlinearities on the wind response of bridges. Thus, this paper presents an experimental assessment of the effect of structural nonlinearities on the aeroelastic stability and wind response of cable-supported bridges. At first, the development of a new experimental apparatus for nonlinear section model tests of bridges is discussed. Then, the results of nonlinear section model tests conducted using the experimental apparatus are presented. Three different suspension bridge configurations are tested. The first one is for a single-box girder suspension bridge, and the second and third ones are for two twin-box girder suspension bridges having different span lengths. By comparing the results of linear tests to those of nonlinear tests, it is possible to assess the effect of structural nonlinearities. It is found that structural nonlinearities can have an effect on the critical velocity for flutter.</abstract><cop>New York</cop><pub>American Society of Civil Engineers</pub><doi>10.1061/JSENDH.STENG-12147</doi><orcidid>https://orcid.org/0000-0002-7509-1379</orcidid></addata></record> |
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| ispartof | Journal of structural engineering (New York, N.Y.), 2023-10, Vol.149 (10) |
| issn | 0733-9445 1943-541X |
| language | eng |
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| source | American Society of Civil Engineers:NESLI2:Journals:2014 |
| subjects | Aeroelastic stability Box girder bridges Bridge failure Cable-stayed bridges Cost effectiveness Critical velocity Geometric nonlinearity Model testing Stability analysis Structural engineering Suspension bridges Technical Papers Wind effects Wind tunnel testing |
| title | Nonlinear Wind Tunnel Tests of Cable-Supported Bridges |
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