EXPERIMENTAL STUDY ON LONG－TERM DEFLECTION OF VOID SLAB (PART 2) : PRACTICAL CALCULATION METHOD FOR LONG－TERM DEFLECTION OF VOID SLAB

Abstract

In this paper, a practical calculation method for long-term deflection of void slabs which was developed for the purpose of weight reduction and improvement of workability was proposed. The calculation method is based on the method of calculating long-term deflection of solid concrete slabs shown in the AIJ RC standard, and bending rigidity of void slabs is assumed to be equivalent to bending rigidity of solid concrete slabs. Also, by calculating long-term deflection using time history of drying shrinkage strain and creep deformation, calculated value of time history of long-term deflection of void slab was shown.