A study of the behavior of the Rama 7 Bridge by numerical analysis and ambient vibration measurement | |
| Author | Wasin Waiyasusri |
| Call Number | AIT Thesis no.ST-17-20 |
| Subject(s) | Rama VII Bridge Bridges--Thailand--Bangkok Bridges, Box girder |
| 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-17-20 |
| Abstract | The calibration of the numerical model of Rama 7 Bridge based on measured modal parameters improve understanding of structural behavior. An ambient vibration test was conducted to extract fundamental frequencies and modal mode shapes of vibration of the bridge by the application of output-only techniques based on basic frequency decomposition or peak picking method. The calibration was operated using manual refinement of structural parameters. Uncertain structural parameters in this studied included the stiffness and mass of bridge section and the boundary condition of land piers and river piers. A ultrasonic pulse velocity was conducted to verified actual modulus of elasticity of concrete in bridge section. The preliminary FEM was refined to represented actual stiffness of structure with modulus of concrete from UPVs, include the masses of non-structural elements and more realistic model of river piers foundation. A MAC values are used to indicated correlation between FEM and measured modal mode shapes. The updated FEM showed better prediction of actual bridge response |
| Year | 2017 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. ST-17-20 |
| 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) | Punchet Thammarak; |
| Examination Committee(s) | Anwar, Naveed;Thanakorn Pheeraphan; |
| Scholarship Donor(s) | Royal Thai Government; Asian Institute of Technology Fellowship; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2017 |