| Author | Phruek Chansukho |
| Call Number | AIT Thesis no.ST-18-03 |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master in Structural Engineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. ST-18-03 |
| Abstract | Tuned Mass Damper (TMD) is developed using multi-stage steel laminated rubber bearing which has low lateral stiffness compared to vertical stiffness. With its low lateral stiffness, TMD is allowed to have range of frequencies that could be tuned to matched with natural frequency of structures. Each supported steel laminated rubber bearings are stacked up with stabilizing plate alternatively called multi-stage steel laminated rubber bearing. It allows TMD to move with high lateral displacement which beneficial on vibration control of structure from wind loading. The test results show that the dynamic properties of TMD is stiffer than the quasi-static properties. The nonlinear softening effect under high shear strain level due to 2nd shape factor of bearing – which leads TMD to reduce its resonant frequency at high shear strain – was observed from harmonic excitation with sweeping frequency test. The softening effect of TMD is well predicted by cubic nonlinearities model from theory of nonlinear oscillations. Furthermore, the comparison between testing result under narrowband random excitation – actual circumstance – and numerical prediction using cubic nonlinearities model on step-by-step integration method, shows a very well matching. In summary, multi-stage steel laminated rubber bearings approach can be effectively applied as a TMD, and its behavior is also predictable by numerical method. |
| Year | 2018 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. ST-18-03 |
| 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) | Punchet Thammarak;Anwar, Naveed; |
| Scholarship Donor(s) | Loom Nam Khong Pijai (GMSARN) Scholarship; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2018 |