Here is what the Top-Bar hives look like on the inside. The bees draw their own comb down from the bars. There is a little strip of wood centered on the bar that helps them align the comb. The angle of the sides of the main body keep the bees from adhering the comb to the sides. There is a false back to the hive that moves forward and back to adjust the size of the interior as the honey flow fluctuates.
