Fink Roof Truss Analysis

Horizontal roof rafters maximum span douglas fir in horizontal roof rafters and maximum span.

Fink roof truss analysis.

Permanent dead loads self weight of long span aluminium roofing sheet 0 55mm gauge thickness 0 019 kn m 2 weight of ceiling adopt 10mm insulation fibre board 0 077 kn m 2 weight of services 0 1 kn m 2 weight of purlin assume ch 150 x 75 x 18 kg m 18 x 3m 1 2 x 3 15. The fink truss bridge was patented by albert fink in 1854. 2 0 load analysis span of roof truss 7 2m spacing of the truss 3 0m nodal spacing of the trusses 1 2m. Maximum floor joist span no.

R802 10 2 and designed according to the minimum requirements of ansi tpi. Modulus of rigidity shear modulus modulus of rigidity is the elasticity coefficient for shearing or torsion force. This rafter truss calculator has a range of applications including being used as a wood truss calculator roof truss calculator roof rafter calculator scissor truss calculator or for roof framing. Each truss is responsible for a 2 foot section through the roof as trusses are typically placed 24 apart and thus must carry 12 on either side.

Roof live load 25 lb ft2 b. Ceiling dead load 10. Calculate the tension and compression forces on each member given the load requirements below. This free online truss and roof calculator generates the axial forces and reactions of completely customisable 2d truss structures.

The truss manufacturer will calculate final loads metal plate sizing member sizing webs and chord deflections based on local climatic and or seismic conditions. Simple truss analysis part 1. Wood truss construction drawings shall be prepared by a registered and licensed engineer as per irc 2012 sec. Albert fink designed his truss bridges for several american railroads especially the baltimore and ohio and the louisville and nashville the 1865 annual report of the president and directors of the louisville and nashville railroad company lists 29 fink truss bridges out of a total of 66 bridges on the railroad.