Roof Truss Nodes

Structural support of trusses usually walls normally with a timber wall plate.

Roof truss nodes.

The wall plate width see figure 7. A roof truss is a triangular wood structure that is engineered to hold up much of the weight of the rest of the roof. A horizontal cut to the bottom of a sloping bottom chord usually the width of the bearing i e. The highest point on a truss where the sloping top chords meet.

Bearing cut or seat cut. Space frame truss contrast to planar truss the members and the nodes are located in the three dimensional space. A slight vertical cut usually less than 75mm at the. If all the members and the nodes are in a planar surface then this truss is a planar truss.

The straight lengths of wood known as members that roof trusses built with are connected with intersections that distribute the weight evenly down the length of each member. Planar truss as the name implies it is a two dimensional truss. This type of truss is also used for the horizontal truss of gantry crane girders. These trusses are most often used as the roof trusses.

Roof trusses are created by attaching the ends of members to joints known as nodes. Warren trusses are commonly used in long span buildings ranging from 20 to 100 m in span. The top beams in a truss are called top chordsand are typically in compression the bottom beams are called bottom chords and are typically in tension. Electrical and telecom towers are the one of the simplest example that we are seeing in the day to day life.

Although this rigorous definition allows the members to have any shape connected in any stable configuration trusses typically comprise five or more triangular units constructed with straight members whose ends are connected at joints referred to as nodes.