الفهرس | Only 14 pages are availabe for public view |
Abstract The main objective of this research is to experimentally investigate the cyclic behavior of interior and exterior slab-column connections with openings, constructed from high strength concrete HSC, and draw a comparison with that fromnormal strength concrete NSC. The applicability of the provisions used by many international codes for the punching shear strength is examined when applied to the respective problem. In addition, the requirements of the international codes for the size and the locationsof openings in reinforced concrete interior and exterior slab-column connections are evaluated when applied to HSC slab-column connections. Eighteen full-scale reinforced High-Strength Concrete (HSC) and Normal-Strength Concrete (NSC) interior and exterior slab-column connections with and without openings subjected to seismic loading had been carried out. In addition, fifty-four building having three stories, constructed from NSC and HSC, with and without openings in their slabs beside interior and exterior columns have been analyzed under earthquake loadings. Two real earthquake records with wide ranges of frequency contents have been selected as input ground motions. The first earthquake record is the N-S component of the 1940 EL Centro and the second is the parkfield earthquake record and they are chosen to match the ”highest design level” earthquakes in the United States and Europe (Ductility Class High as required by EC-8). An analytical work using the finite element method with the aid of the computer program ABAQUS, had been carried out in order to verify the applicability of the method in the prediction of the response. |