Exam 36: Development of Arches

The ______ is the undersurface or bottom of the arch.

An arch is a beam that is curved in the plane of the loads resting on it.

The rise of a segmental arch should not be less than 1″ per foot of the span and the skewback should be at right angles to the arch axis.

Gothic bullseye arches are the most commonly used arch types today.

Concrete and steel lintels, which shorten installation time, have now greatly replaced the masonry arch.

The concave curve that bounds the entire curvature of the lower limits of an arch is called its _____ .

Minor arches have a maximum span of 10' and a maximum equivalent load of about 1500 lbs per linear square foot of span.

The _____ arch is a flat arch of solider position brick.

A _____ arch is a four-center arch with medium rise-to-span ratio.

The ______ is the apex of the arch ring.