Roof Truss Top Chord

Closed in which the bottom chord is horizontal and at the foot of the truss and open in.

Roof truss top chord. Top chord bearing on frame wall top chord bearing on masonry wall top chord cut after installation intermediate bearing continuous floor truss special engineering required roof floor truss manual 7 31 08 10 43 am page 10. A metal plate connected wood truss is a roof or floor truss whose wood members are connected with metal connector plates. The same thing is true for the bridge of the truss. Pitch 12 span ft in overhang ft in rounded to the nearest 1 32.

Web members that join the top and bottom chords to form triangular patterns that give truss action usually carrying tension or compression stresses. Truss a pre built structural member capable of supporting a load over a given span. Bearing a structural support usually a wall that occurs at the top or bottom chord or between the end points of a roof or floor truss. The parallel chord truss or flat truss gets its name from its parallel top and bottom chords.

Top chord an inclined or horizontal member that establishes the upper edge of a truss usually carrying compression and bearing stress. Use our top chord truss calculator to estimate your rake length for roof sheathing. Trusses to support roof covering. Beam pocketa rectangular opening within a truss to accept a header beam for positive load transfer.

It is often used for floor construction. Bending momenta measure of the bending effect on a member due to forces acting. Flat truss a truss which has the top chord parallel to the bottom chord over the entire length of the truss. A truss consists of one or more triangles in its construction.

A combination of the two is a truncated truss used in hip roof construction. Peak point on a truss where the sloped parts meet. 500 sycamore street p o. Pitched truss any truss in which the top chord is sloped and the bottom chord is horizontal.

Finally the truss calculator will compute the best dimensional method to connect the pieces of the truss with steel joints and a bridge. Box 177 la crescent mn 55947 507 895 8400. The top members of a truss are known generically as the top chord bottom members as the bottom chord and the interior members as webs in historic carpentry the top chords are often called rafters and the bottom chord is often referred to as a tie beam there are two main types of timber roof trusses. The more complex the truss framework is the greater quantity of these joints will be required.