Comparative seismic analysis of concentrically braced steel frames and viscous fluid dampers | |
| Author | Reckerman, Thorne Alick |
| Call Number | AIT Caps. Proj. no.CIE-14-13 |
| Subject(s) | Steel, Structural Earthquake resistant design Earthquakes and building |
| Note | A capstone project submitted in partial fulfillment of the requirements for the Degree of Bachelor of Science in Civil and Infrastructure Engineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Caps. Proj. ; no. CIE-14-13 |
| Abstract | The state of California is prone to large earthquakes, thus structures are constantly at risk if they aren’t designed to withstand large earthquakes. A common way of providing a structure with lateral resistance to resist lateral forces produced by earthquakes, is with the addition of structural elements such as concentric braced frames. Concentric braced frames dissipate energy via yielding and buckling of the brace and undergo plastic deformation during large earthquakes. Though concentric braced frames reduce story displacements, they are not effective in dissipating the input energy of the earthquake; meaning they are not effective in mitigating story accelerations and seismic forces. Passive supplemental energy dissipating devices such viscous fluid dampers, provide additional damping to a structure, helping it mitigate the input energy by an earthquake via viscous damping. The study shows that a 3 bay 5 and 10 story steel frame equipped with a viscous damper, provides more structural integrity in comparison to the same steel frames equipped with only a concentric brace frames. The viscous fluid damper displayed significant reductions in comparison to the concentric braced frame with respect to roof drift ratio, roof acceleration and base shear of both the 5 story and 10 story model in this study. |
| Year | 2014 |
| Corresponding Series Added Entry | Asian Institute of Technology. Caps. Proj. ; no. CIE-14-13 |
| Type | Capstone Project |
| School | School of Engineering and Technology |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Civil and Infrastructure Engineering (CIE) |
| Chairperson(s) | Hathairat Maneetes; |
| Examination Committee(s) | Teraphan Ornthammarath ;Punchet Thammarak; |
| Degree | Capstone Project (B.Sc.)-Asian Institute of Technology, 2014 |