LONG TERM DEFLECTION RATIOS WITH VARIOUS FACTORS : Study on an estimation method for the long-term deflection of reinforced concrete slabs Part 3

Abstract

This shows long-term deflection ratios with various factors such as tensile reinforcement ratio, ratio of compression-tension reinforcement slab span, slab thickness, drying shrinkage ratio, creep ratio, etc. based on the step-by-step calculation method specified in the previous papers. Generally speaking, long-term deflection ratios decrease as the ratio of tension reinforcement, ratio of compression-tension reinforcement, or slab span increases. This study discloses that compressive reinforcement is effective for control to the long-term deflection of slab as effectively as tensile reinforcement in case the slab is cast by low strength concrete with high shrinkage properties.