wall rib การใช้

To meet this, at first the transverse and wall ribs were stilted, or the upper part of their arches was raised, as in the Abbey of Lessay, in Normandy.
Sometimes, in the case of comparatively narrow compartments, and more especially in clerestories, the wall rib was stilted, and this caused a peculiar twisting of the web, as may be seen in fig . 9, where the springing of the wall rib is at K : to these twisted surfaces the term ploughshare vaulting is given.
Sometimes, in the case of comparatively narrow compartments, and more especially in clerestories, the wall rib was stilted, and this caused a peculiar twisting of the web, as may be seen in fig . 9, where the springing of the wall rib is at K : to these twisted surfaces the term ploughshare vaulting is given.
In some English work, as may be seen in fig . 9, each course of stone was of uniform height from one side to the other; but, as the diagonal rib was longer than either the transverse or wall rib, the courses dipped towards the former, and at the apex of the vault were cut to fit one another.
Instead of the elliptical curve which was given by the intersection of two semicircular barrel vaults, or cylinders, he employed the semicircular arch for the diagonal ribs; this, however, raised the centre of the square bay vaulted above the level of the transverse arches and of the wall ribs, and thus gave the appearance of a dome to the vault, such as may be seen in the nave of Sant'Ambrogio, Milan.