A horizontal beam that holds structural elements together and prevents them from spreading apart.
A horizontal structural member that connects columns, walls, or other structural elements to prevent them from spreading apart under load. Tie beams are commonly used at the base of roof trusses to resist the outward thrust of the rafters, and at grade level to connect foundation elements. They work in tension, distinguishing them from beams that primarily resist bending.
Timber tie beams span between opposite rafters at mid-height to resist the outward thrust on the masonry walls of the historic church.
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