Curiously enough, the fill material used to create a level surface for the roadbed of a stone arch bridge is a surprisingly important topic. The typical stone arch bridge consists of an arch resting on abutments (which may or may not extend up above the arch springing, depending on how much weight … [Read more...] about The Significance of the Fill Material in Stone Arch Bridges
Roman arch
Segmental Arches
Segmental arches are arches with an arc less than a 180-degree Roman arch. They seem to have been popular primarily in the 1700s and 1800s, although they were occasionally built in medieval times — rarely even by the Romans. What is a Segmental Arch Bridge? The term "segmental arch" is … [Read more...] about Segmental Arches
On Roman Arches
The Roman arch, consisting of one half of a circle, is the typical rounded arch often seen with stone bridges. The Roman arch need not have a thick abutment to resist a horizontal thrust; rather, they start (“spring”) on a flat, horizontal plane. This makes them very easy to build, which is always … [Read more...] about On Roman Arches