Horizontal Diaphragms

Horizontal diaphragms are usually floors and roofs. They are made up from a horizontal frame covered by a floor or roof deck.

When a diaphragm is stiff enough in its horizontal plane (Explain), it can share the sideways earthquake forces on a building between the vertical structural members, e.g. the columns and walls.


Strengthening Buildings
            Horizontal Diaphrams

from Bristol University