All the weight that's placed at the top distrbutes evenly throught out the arch. that's pretty much why its so strong.
it wanted to
They are called Roman triumphal arches such as the Arch of Titus
The Romans rarely combined arches and columns. Large Roman buildings, the bridges and the bridgework of aqueducts made extensive use of the simple (barrel) arch and the vaulted arch (or vault, for vaulted roofs). Arches did not need columns. When the Romans combined arches with columns it was for decorative purposes. Roman ttemples were based on Greek models and were post-and-lintel structures resting on columns. Because of this, they did not have arches.
Support is the purpose of an arch, Roman or otherwise. Arches provide greater load-bearing strength for large and/or tall buildings and for bridges. The Romans also introduced the triumphal arches, which were monuments which celebrated the victories in battle of the emperors who commissioned them.
Concrete and the invention by Rome of the arch.
The vault, or vaulted arch is a structure made up of two or four intersecting arches. There Romans had two types: the groin arch, which is formed by two to four intersecting barrel (simple) arches and the rib arch, where the intersecting arches are of different diameter. This structure has an even greater load-bearing capacity than the simple arch. It is suited for supporting large roofs.
It does not have to stay up. One eyebrow arches up, while the other stays flat, to match the picture.
Roman Architecture is responsible for the use and development of arches. However, we now know that arches were in use in Africa and Egypt prior to roman empire
They are called Roman triumphal arches such as the Arch of Titus
to shut up
One can find a great list of Roman triumphal arches on Wikipedia. Some of the arches listed on Wikipedia are Porte de Mars, Arch of Germanicus, Arch of Galerius, and Hadrian's Arch.
The Romans rarely combined arches and columns. Large Roman buildings, the bridges and the bridgework of aqueducts made extensive use of the simple (barrel) arch and the vaulted arch (or vault, for vaulted roofs). Arches did not need columns. When the Romans combined arches with columns it was for decorative purposes. Roman ttemples were based on Greek models and were post-and-lintel structures resting on columns. Because of this, they did not have arches.
Support is the purpose of an arch, Roman or otherwise. Arches provide greater load-bearing strength for large and/or tall buildings and for bridges. The Romans also introduced the triumphal arches, which were monuments which celebrated the victories in battle of the emperors who commissioned them.
colosseum!
It is made up of arches.
The arch. (Domes are modified arches)
There is much Roman art remaining. Their arches, tomb carvings, the pantheon , and their memorial arches are all considered works of art. Then there are the many mosaics and frescoes, pottery, jewelry, busts and complete statues in various museums.
The arc architecture style is an imitation of Roman arches.