MOMENT-ROTATION RELATION BETWEEN COLUMN AND SLAB

A METHOD IS PRESENTED FOR OBTAINING LIMITS TO THE ROTATIONAL STIFFNESS OF FLAT FLOOR PLATES AT A COLUMN-- SLAB JUNCTION. THE METHOD IS BASED ON THE ELASTIC THEORY OF ISOTROPIC THIN PLATES AND ACCOUNTS FOR THE COLUMN CROSS SECTIONAL CONFIGURATION AT THE COLUMN-- SLAB INTERFACE, AS WELL AS THE FLOOR PLATE'S BOUNDARY CONDITIONS. THE FLEXURAL STIFFNESS OF THE SLAB AT A COLUMN--SLAB JUNCTION IS REPRESENTED BY A MOMENT- ROTATION COEFFICIENT AS USED IN BEAM AND FRAME ANALYSIS. MOMENT-ROTATION COEFFICIENTS FOR SEVERAL CASES OF SQUARE PLATES ON CENTRAL SQUARE COLUMNS ARE EVALUATED. THE DISTRIBUTION OF MOMENT IN THE SLAB DUE TO AN APPLIED MOMENT AT THE COLUMN--SLAB JUNCTION IS STUDIED. A NUMERICAL EXAMPLE IS INCLUDED TO SHOW THE APPLICATION OF THE PROPOSED METHOD. /AUTHOR/