Response behavior of elevated bridge structures under severe earthquakes | |
| Author | Akasit Chungkajonkiat |
| Call Number | AIT Thesis no. ST-95-1 |
| Subject(s) | Bridges--Earthquake effects Elevated highways |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering. |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. ST-95-1 |
| Abstract | The analytical studies of dynamic response behavior of the two elevated bridge structural systems as the interaction between reinforced concrete columns with reinforced concrete girders and reinforced concrete columns with prestressed concrete girders under horizontal earthquake motions along longitudinal direction were performed. The FRMT AI computer program, initially developed at the Department of the Civil and Environment Engineering of the Saitama University has been modified for the evaluation of the seismic performance of the complete bridge structural systems. The main program and new subroutines have been developed to obtain the seismic response behavior of bridge structures. To investigate the nature of the relationship between elastic and inelastic responses of the structures, the bridge structures were analyzed for the first 20 seconds of El-Cento, Taft, and Miyagi earthquake waves with three peak ground accelerations of 0.2g, 0.4g, and 0.6g to represent very strong, disastrous, and very disastrous seismic motions, respectively. From the analytical results, the comparisons were made in terms of response peak acceleration, lateral displacement, column moment, girder moment, and base shear for the two systems of elevated bridge structures. According to these results, the overall response behavior of bridge structures are quite similar and controlled by the dynamic characteristics of the seismic loading and of the structural systems such as specific characteristic of each earthquake wave, peak ground acceleration intensity, natural period of vibration of structures, and yielding strength ratio of structural systems. The influence of these various parameters on the response behavior of bridge structures have been considered to provide the design principles for their seismic resistance. |
| Year | 1995 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. ST-95-1 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Structural Engineering (STE) /Former Name = Structural Engineering and Construction (ST) |
| Chairperson(s) | Aoyagi, Yukio |
| Examination Committee(s) | Mutsuyoshi, Hiroshi;Pennung W arnitchai;Taweep Chaisomphob |
| Scholarship Donor(s) | The Telephone Organization of Thailand (TOT) |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1995 |