What is a moment frame?

A moment frame is a component intended to reinforce your building against earthquakes. Earthquakes and wind give rise to lateral forces. These lateral forces push sideways where most other forces working on a structure push down. Sideways forces can cause your building to rack and fail. Engineers are required to consider lateral forces in designing your project and, when necessary, incorporate things like moment frames, shearwalls, drag struts and hold-downs into the structure.

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