Steel Roof Truss Span Table Australia

Spantec has prepared these tables for use by people skilled in the design and specification of the.

Steel roof truss span table australia.

Where joist ends have rigid connections or are over multiple. It contains span tables covering various primary and secondary beam spans with common design floor loadings. Cpe 0 9 and cpi 0 2. The information in this guide can be used for the design of sub floors second storey floors and a number of roof types and beams including lintels.

Spacing span note hopleys trusses this table may also be used for wind uplift to a maximum of 0 4 kpa with suitable lateral restraints. Flat roof span tables allow for a maximum roof pitch of 5º. Roof load width rlw and floor load width flw can be determined from as1684 or from the images below. Use recommended minimum roof pitches as specified by roof sheet supplier.

No provision has been made for the 1 3kn concentrated load. It is intended that these tables will be used by engineers to assist in the preliminary design. The imposed uniformly distributed live load in the main span. This is set by the roof use you selected in the previous screen and cannot be modified.

Required size for a given span. Max roof span allowed 12m. Here wind load governs ie in excess of 0 4 kpa the span shall be reduced. Reading off the empty under table with h 5m hc 2 5m span table c will be used to determine the spans.

All spans to have 1 row of bridging. Loads are calculated in accordance with table 3 1 of as nzs 1170 1 2002. From span table c the maximum allowable single span is 2160mm. Posts these span tables are designed for a minimum post size of 50 x 50 x 2 5mm up to a maximum height of 3 0m.

Cleated or bracketed fixing only no flange bolting. High pressure zones kl 1 5 and 2 0 included. Step 4 assume the wind classification for the area is n1 and the roofing profile is stramit corrugated cladding 0 48mm bmt thickness in a single span configuration. Safe roof purlins spans.

These boxspan residential span tables provide detailed product design and typical installation information. The safe spans below are suitable for sheds and class 1 structures with the following assumptions. Boxspan steel beams used in australian building for over 20 years. Appendix c span tables c 1 introduction this appendix has been taken from the onesteelpublication design note no.