PARTIALLY COMPOSITE SANDWICH PANEL DEFLECTIONS

A continium model for evaluating partially composite insulated concret e sandwich panel deflections with discrete shear connectors due to dif ferential volume changes such as those caused by differences in temper ature between the wythes is evaluated for accuracy by comparison with finite-element analysis. Design equations for computing these deflecti ons are provided. Analysis of sample panels indicate that the continuu m model provides acceptable accuracy for calculating thermal bowing in the panels is relatively insensitive to the stiffness of the connecto rs. This implies that long insulated sandwich panels with low connecti ng-layer stiffness will experience nearly the same amount of thermal b owing as fully composite panels.