As of Zurb Foundation v5.3.0 There is no out of package class for targeting orientations directly such as you describe above.
However by employing mixins one can create a custom class that provides the desired outcome such as the following example I copied from the a similar question on the foundation site.
.class-name {
@media #{$small-only} and (orientation: portrait) {
@include grid-column(2);
}
@media #{$small-only} and (orientation: landscape) {
@include grid-column(4);
}
@media #{$medium-up} and (orientation: landscape) {
@include grid-column(6);
}
}