Determination of dynamic horizontal stiffness parameters of a pile foundation using acceleration and dynamic strain measurements | |
| Author | Sawumma, Sadriar Alam |
| Call Number | AIT Thesis no.ST-21-07 |
| Subject(s) | Piling (Civil engineering) Acceleration (Mechanics)--Measurement |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Structural Engineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. ST-21-07 |
| Abstract | A testing method to measure the foundation dynamic stiffness through direct output only measurements of real structures is proposed and evaluated in this thesis. Dynamic stiffness is measured and presented as complex numbers in frequency domain, of which the real component is stiffness, and the imaginary component is damping coefficient. The testing method was applied on a floating pile-cap with 12 piles embedded in soft clay and a two degree of freedom steel super-structure. The foundation lateral translational stiffness was statically tested to compare with the measured translational dynamic stiffness. The foundation lateral translational fundamental frequencies were found by measuring the lateral impulse responses to compare with calculated fundamental frequencies based on measured static and dynamic translational stiffness. Conclusion based on results is the testing method of measuring foundation dynamic stiffness can accurately measure lateral dynamic stiffness and be used to find soil structure interaction parameters of real structures. |
| Year | 2021 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. ST-21-07 |
| 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) | Pennung Warnitchai;Punchet Thammarak (Co-Chairperson); |
| Examination Committee(s) | Thanakorn Pheeraphan; |
| Scholarship Donor(s) | Asian Institute of Technology Fellowship; |
| Degree | Thesis (M. Eng.) - Asian Institute of Technology, 2021 |