| Author | Nhu Nguyen Hong Cuong |
| Call Number | AIT Thesis no.ST-03-33 |
| Subject(s) | Earthquake hazard analysis--Vietnam--Hanoi
|
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of
Master of Engineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. ST-03-33 |
| Abstract | Ha Noi, The Capital of Viet Nam, is situated in a region where the tectonic faults exist
along the Hong (Red), Chay and Lo rivers in a northwest-southeastern direction. Studies
show that Ha Noi is situated in the area where the average magnitude of earthquake is 6.1
(MSK scale) and the focal depth ranges from 15 km to 20 km. Therefore, it is urgent to
conduct a detailed seismic hazard assessment of this area. Although there are studies about
seismic microzonation for Ha Noi, the construction of microzonation map using
Microtremor Technique was first time performing in this city. The map provides a basis for
site-specific risk analysis, which can support the seismic risk reduction.
Microtremor observations were carried out at 63 sites concentrated in Metropolitan Area of
the City. The ground predominant periods were determined from the horizontal to vertical
(HIV) spectral ratios of microtremors and a microzonation map was then constructed from
variation of predominant period for Ha Noi. In addition, Equivalent Linear Analysis was
also carried out for available soil profiles at different sites using SHAKE 91 software to
verify the results from microtremors measurements. The study demonstrates that the
Metropolitan Area of Ha Noi has considerable long predominant period. Besides it, the
predominant period is found to increase from the North to the South direction. Thus, the
study pointed out that the earthquakes might cause severe effects on the structures
especially with long-span bridges or high-rise buildings around this area. The results of this
study are expected to be helpful for a detailed hazard assessment of the Ha Noi. |
| Year | 2003 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. ST-03-33 |
| 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) | Yamazaki, Fumio; |
| Examination Committee(s) | Pennung Warnitchai ;Kim, Kidu ; |
| Scholarship Donor(s) | Government of Vietnam ;Japan International Cooperation Agency (JICA); |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2003 |