Feb 18 2015 explore amber skye padilla s board struts and ties followed by 398 people on pinterest.
Roof struts and ties.
It is an industry convention that the arrows are shown pulling in on themselves.
They should have anti slip blocks where necessary to prevent them sliding horizontally.
All structures have forces acting on them.
The weight of the beam is stretching the rod tensile force.
The weight of the beam is stretching the rod tensile force.
The part of the structure that has a tensile force acting on it is called a tie and the part that has a compressive force acting on it is called a strut.
Rafters have a tendency to flatten under gravity thrusting outwards on the walls.
The beam is held in position by a steel rod.
See more ideas about the struts building roof roof trusses.
The struts are needed in the roof frame to transfer the loads from underpurlins and other beams to the load bearing walls.
The beam is held in position by a steel rod.
Struts should be adequately supported over studs in timber walls.
This is in contrast to the tension in a beam in which the tension forces pull outwards from the beam as shown in the bottom diagram.