Seismic performance evaluation of a gravity-load designed RC building in Yangon, Myanmar | |
| Author | Po Po Han Myint |
| Call Number | AIT Thesis no.ST-25-04 |
| Subject(s) | Buildings--Earthquake resistant design--Burma--Evaluation Buildings--Earthquake effects--Burma |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in Structural Engineering |
| Publisher | Asian Institute of Technology |
| Abstract | This study investigates the seismic performance of a typical gravity-load-designed (GLD) residential building located in Yangon, Myanmar, which lacks proper seismic design considerations. A four-story reinforced concrete building was modeled and analyzed using Nonlinear Time History Analysis (NLTHA) in ETABS, subjected to three ground motions scaled according to the Myanmar National Building Code (MNBC 2020) spectrum. Under code-level seismic inputs, the building demonstrated limited plastic hinge development and acceptable inter-story drift, corresponding to a Life Safety (LS) performance level in the X-direction and between LS and Collapse Prevention (CP) in the Y-direction. However, when the ground motions were amplified, drift ratios exceeded CP thresholds, and a soft-story mechanism developed at the ground level. While column plastic rotations stayed within allowable deformation limits, the overall seismic response revealed insufficient global performance under severe shaking. These findings underscore the seismic vulnerability of GLD structures and emphasize the urgent need for retrofitting measures and stricter enforcement of seismic design codes in Myanmar. |
| Year | 2025 |
| 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) | Krishna, Chaitanya; |
| Examination Committee(s) | Anwar, Naveed;Pennung Warnitchai;Thanakorn Pheeraphan; |
| Scholarship Donor(s) | Asian Institute of Technology (Thailand); |
| Degree | Thesis (M. Sc.) - Asian Institute of Technology, 2025 |