We often see different types of arches in entrances of institutional buildings or in partition walls of residences. We see these arches in Philippines Government buildings. The most common arches would be the round and the segmented arch.
The round arch is a continuous curve. It traces its history during the Roman era. The masonry support is usually curved at the top which makes the entire component curve.
On the other hand, the segmented arch is an arch which is not fully curved but instead the support is at the sides of the abutments. This is arguably one of the strongest types of arch curve.
Another difference between the two is the direction of its thrust. While the round arch transfers thrust vertically because of the direction of the curve, the segmented arch transfers the thrust in an inclined direction towards the abutment.
Reference:
“30 Types of Architectural Arches (with Illustrated Diagrams).” Home Stratosphere, September 9, 2020. https://www.homestratosphere.com/types-of-arches/.