Roof Struts And Ties

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.

Roof struts and ties.

The beam is held in position by a steel rod. Tension members in trusses are called ties and these are members which are being stretched. The weight of the beam is stretching the rod tensile force. The weight of the beam is stretching the rod tensile force.

Feb 18 2015 explore amber skye padilla s board struts and ties followed by 398 people on pinterest. See more ideas about the struts building roof roof trusses. Rafters have a tendency to flatten under gravity thrusting outwards on the walls. A timber roof truss is a structural framework of timbers designed to bridge the space above a room and to provide support for a roof trusses usually occur at regular intervals linked by longitudinal timbers such as purlins the space between each truss is known as a bay.

All structures have forces acting on them. 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. They should have anti slip blocks where necessary to prevent them sliding horizontally.

It is an industry convention that the arrows are shown pulling in on themselves.