Seismic performance of reinforced concrete beam-column subassemblages without seismic detailing | |
| Author | Do Tien Thinh |
| Call Number | AIT Thesis no. ST-03-30 |
| Subject(s) | Concrete beams Buildings, Reinforced concrete--Earthquake effects Earthquakes |
| Note | A thesis submitted in partial fulfillment of requirements for the degree of Master of Engineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. ST-03-30 |
| Abstract | In South East Asian countries, the design of reinforced concrete frame buildings have not taken into consideration seismic loadings. Also, several structural details including no transverse reinforcement at joints, lap splice in column just above joint level, and construction joints just above and below the beam level in response to seismic loadings have not been examined. Such improper details may lead to unexpected structural performance during seismic activity. In this research, the quasistatic cyclic loading test was conducted on a beam-column subassemblage that is considered to be one of the most critical members against a seismic action. Structural indices were investigated from ten mid-rise RC frame buildings. From the structural indices, it can be concluded that the beam-column subassemblages have a high possibility to fail in joint shear failure with high bond index and joint shear stress over joint shear strength ratio. A specimen representing typical RC mid-rise frame buildings was carefully designed based on the range of structural indices. The experimental results show brittle failure mode including joint shear failure and bond deterioration of beam longitudinal reinforcement. Poor seismic performance can be observed through the experimental force-drift relationship. The strength of specimen decreased more than 25% of peak resistance at 2.5% drift and further reduced approximately 50% at 6% drift. The peak resistance was found at 1.75% drift. Reasonable agreement between the predicted and the experimental resistance was obtained in the case when the overstrength factor was taken into account. |
| Year | 2003 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. ST-03-30 |
| 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) | Pichai Nimityongskul ;Kim, Kidu ; |
| Scholarship Donor(s) | Vietnam Ministry of Education and Training, (MOET); |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2003 |