| Title |
Assessment of Lateral Behavior of Steel-concrete Composite Piles Using Full-scale Model Tests |
| Keywords |
steel-concrete composite pile;subgrade-reaction spring system;model test;composite effect;lateral behavior;강관합성말뚝;지반반력시스템;모형실험;합성효과;수평거동 |
| Abstract |
This paper presents full scale model tests on the various types of model piles carried out to estimate the behavior of laterally loaded steel-concrete composite piles. Subgrade-reaction spring system was developed to simulate the reaction of ground in laboratory condition. In addition, lateral behavior of piles under working load condition was estimated using composite loading system, which is available for independent loading in vertical and horizontal direction. Steel-concrete composite piles showed higher efficiency in lateral resistance rather than drilled shaft made of reinforced concrete. The lateral resistance of composite pile was larger than the summation of steel pile and concrete pile due to the composite effect by steel casing. The effect of shear key or strength of concrete on the behavior of composite pile was examined. The substitution of reinforcing bar by steel casing was also investigated. |