Effects of beam-column joint damage on inelastic seismic responses of RC frame buildings | |
| Author | Sarawut Rungrattanaubon |
| Call Number | AIT Thesis no.ST-07-16 |
| Subject(s) | Buildings--Earthquake effects Columns, Concrete |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Structural Engineering, School of Engineering and Technololgy |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. ST-07-16 |
| Abstract | In reinforced concrete structures, failure of beam-column joint has been as one of the major causes of damage or even collapse of these structures during earthquake. Lack of adequate confinement and shear reinforcement in the beam-column joints of reinforced concrete frames may be the cause of brittle failure during a seismic event. On the other hand, few studies on the beam-column joint damage in the seismic performance of existing gravity-load designed buildings suggest that the buildings will form a hybrid local and global failure mechanism which is related to the joint damage and thus will protect to some extent soft storey mechanisms, reducing the interstory drift demand with no significant effects on the global displacement demand. The fact that we do not know the effect of joint damage on the global response of the building leads to this study. To properly analyze reinforced concrete frame building, a joint element is incorporated into two-story reinforced concrete building. The building is representative of low rise buildings in Bangkok which is a conventional gravity load designed frame. It is introduced in the nonlinear analysis using DRAIN-2DX. The joint element accounts for inelastic shear deformation and bar bond slip. The response of two-story frame with joint elements when subjected to static and dynamic loading was compared with the response of frames with rigid joint assumption. The results show that the joint damages have a significant effect on the seismic response in term of drift and global displacement. In reinforced concrete frame, the joint damage also leads to decrease the plastic hinge rotational demands in beams and moment demand in columns adjacent to the joints. |
| Year | 2007 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. ST-07-16 |
| 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) | Anwar, Naveed;Kato, Yoshitaka; |
| Scholarship Donor(s) | RTG Fellowship; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2007 |