| Title |
Experimental Study on Static Behavior of Laterally Strengthened Spliced Prestressed Concrete Girder using Bending Moment Connector |
| Keywords |
prestressed concrete;precast concrete;spliced girder;bending connector lateral prestressing;joint opening;프리스트레스트 콘크리트;프리캐스트 콘크리트;분절거더;휨연결재;횡방향 프리스트레싱;연결부 |
| Abstract |
The main purpose of this study is to investigate the static behavior of spliced prestressed concrete girder with bending moment connector and lateral prestressing. Four (4) spliced girders and one (1) monolithic girder had been fabricated and tested to compare their static behaviors. Same geometry and materials are used to fabricate these spliced and monolithic girders. A monolithic girder and one (1) spliced girder without lateral bending connector are used as control specimens to estimate the performance of three (3) spliced girders with lateral bending connector. Deflections at the middle of girders have been measured for evaluation. Also, strains of the concrete at the middle of span and connection points have been measured. It was found from the result that laterally strengthened spliced girders showed improved ultimate strength but less stiffness compared to the monolithic girder at the ultimate state. Laterally strengthened spliced girder also showed improved strength as well as improved stiffness compared to the spliced girder without lateral strengthening. |