Wind tunnel model test of a cable-stayed bridge in the south of Vietnam | |
| Author | Dinh Manh Duc |
| Call Number | AIT Thesis no.ST-03-35 |
| Subject(s) | Bridges, Cable-stayed Wind tunnel models--Vietnam |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. ST-03-35 |
| Abstract | In the south of Vietnam a new concrete cable-stayed bridge with main span of 270 m, named Rach Mieu bridge, is now under construction. This is the first cable-stayed bridge designed by Vietnamese Engineers. It is well known that such a long span cable-stayed bridge may have risks of failure under wind action. Therefore the aerodynamic characteristics of the bridge need to be investigated, especially because of frequent records of typhoon at site in recent years. The wind tunnel section model test method is employed in this study. It is one of the methods to investigate the aerodynamic behavior of cable-stayed bridges under wind effects and also the aerodynamic investigation is an important part in the design of a cable-stayed bridge. This type of investigation has already been carried out successfully for many long span cable-stayed bridges in the world. The section model can represent most of aerodynamic characteristics of bridge section. From extracted data of wind tunnel model investigation, the dynamic behavior of full-bridge can be predicted. Three different bridge sections are investigated. First section model is Rach Mieu section model that is representation of Rach Mieu cable-stayed bridge. Second section model is H-section that is similar to plate girder of first Tacoma Nanows Bridge. Third section model is Rach Mieu improved section that is made as streamline section. The H-section is tested in order to verify the testing method. So the Rach Mieu section and Rach Mieu- improved section models are investigated to check the aerodynamic stability. Based on the testing data, the flutter derivatives can be obtained in order to predict the dynamic response of Rach Mieu cable-stayed bridge and the critical flutter wind speed. |
| Year | 2003 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. ST-03-35 |
| Type | Thesis |
| School | School of Engineering and Technology |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Structural Engineering (STE) /Former Name = Structural Engineering and Construction (ST) |
| Chairperson(s) | Pennung Warnitchai; |
| Examination Committee(s) | Barry, William J. ;Kim, Kidu ; |
| Scholarship Donor(s) | Transport Engineering Design Inc. TEDI - Vietnam; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2003 |