How is an arch built?
It is built from the ground up. During construction, the arch is supported by centering, or wooden scaffolding, until the uppermost stone is put in place. The keystone, or central stone at the highest point in the arch, is trapezoidal in shape and, once it is put in place, the scaffolding can be removed and the arch is secure. • What was the function of the triumphal arch in ancient Rome? The imposing triumphal arch is a monumental stone gateway with a central round arch, often flanked by two smaller arches. The triumphal arch served two functions in ancient Rome. First, it served a practical function by providing a physical gateway into the city of Rome. This gateway was often used for grand entrances into the city for events such as imperial ceremonies and festivals. Second, the arch fostered a sense of awe and admiration in the spectator as he or she observed the grand imperial ceremony, glorifying the emperor. Thus the triumphal arch functioned as political propaganda as well. • Ho