diagonal rib การใช้

Secondary arched diagonal ribs, called tiercerons, span from the springers to the transverse ridge ribs.
Unlike that of the Lower Church, it is only the diagonal ribs which are of semi-circular form.
The transverse ribs are pointed in the Gothic manner, and thus rise to the full height of the wider diagonal ribs.
In France, on the other hand, the web courses were always laid horizontally, and they are therefore of unequal height, increasing towards the diagonal rib.
The design is made from high-tenacity, low-porosity material of 49 g / m 2 and incorporates diagonal tapes instead of the more commonly used whole diagonal ribs.