The effect of metallic yielding dampers (X-shaped, triangular added damping and stiffness and shear panel) on high and low rise steel structures subjected to seismic action | |
| Author | Perara, Thehani Nichola |
| Call Number | AIT Caps. Proj. no.CIE-17-60 |
| Subject(s) | Earthquake engineering Damping (Mechanics) Steel, Structural |
| Note | A capstone project report submitted in partial fulfillment of the requirements for the degree of Bachelor of Science in Engineering Civil and Infrastructure Engineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Caps. Proj. ; no. CIE-17-60 |
| Abstract | Since the late nineties, more attention has been paid to seismic behaviour of manmade structures. Within a short period of time, various devices which are capable of dissipating energy during seismic activity have been introduced and utilized. This study focuses on the behaviour of X shaped, Triangular Added Damping and Stiffness (TADAS) and Shear Panel (SPD) metallic yielding dampers for high and low rise steel frames, in the region of California in Western United States. The role of energy dissipating devices commonly known as dampers is to transfer a considerable portion of earthquake energy to another form without allowing the entry of energy to the structure. There are many types of energy dissipating devices. Yielding dampers are among energy dissipating devices that not only help control structural damages, but make better seismic behaviour by concentrating the frames in some removable part of the structures. California is a region where seismic activities occur frequently. To study the behaviour of high and low rise steel frames under seismic activity, dampers were introduced to five storey and twenty frames and subjected to Loma Prieta, San Fernando and Northridge earthquakes which occurred in California. These dampers were located at the beam-brace intersection of a concentrically braced frame (CBF). Each damper was modelled in three different materials (A36 steel, A992 steel and Aluminium) to investigate the influence of various materials on damper performance. To investigate damper behaviour, storey displacement, drift and shear values were obtained for the CBF and CBF with various types of dampers and the results were plotted as graphs to compare the behaviour of dampers for 5 and 20 storey steel frames. |
| Year | 2017 |
| Corresponding Series Added Entry | Asian Institute of Technology. Caps. Proj. ; no. CIE-17-60 |
| Type | Capstone Project |
| School | School of Engineering and Technology (SET) |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Civil and Infrastructure Engineering (CIE) |
| Chairperson(s) | Hathairat Maneetes; |
| Examination Committee(s) | Punchet Thammarak ;Soh Tian Boon; |
| Degree | Capstone Project (B.Sc.)-Asian Institute of Technology, 2017 |