The imposed uniformly distributed live load in the main span.
Steel roof truss span table australia.
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.
Roof load width rlw and floor load width flw can be determined from as1684 or from the images below.
High pressure zones kl 1 5 and 2 0 included.
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.
Roof truss span tables alpine engineered products 15 top chord 2x4 2x6 2x6 2x4 2x6 2x6 2x4 2x6 2x6 2x4 2x6 2x6 bottom chord 2x4 2x4 2x6 2x4 2x4 2x6 2x4 2x4 2x6 2x4 2x4 2x6 2 12 24 24 33 27 27 37 31 31 43 33 33 46 2 5 12 29 29 39 33 33 45 37 38 52 39 40 55 3 12 34 34 46 37 39 53 40 44 60 43 46 64 3 5 12 39 39 53 41 44 61 44 50 65 47 52 70.
The safe spans below are suitable for sheds and class 1 structures with the following assumptions.
It is intended that these tables will be used by engineers to assist in the preliminary design.
It contains span tables covering various primary and secondary beam spans with common design floor loadings.
Max roof span allowed 12m.
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.
This is set by the roof use you selected in the previous screen and cannot be modified.
Use recommended minimum roof pitches as specified by roof sheet supplier.
Spantec has prepared these tables for use by people skilled in the design and specification of the.
Cleated or bracketed fixing only no flange bolting.
No provision has been made for the 1 3kn concentrated load.
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.
These boxspan residential span tables provide detailed product design and typical installation information.
Where joist ends have rigid connections or are over multiple.
All spans to have 1 row of bridging.
Flat roof span tables allow for a maximum roof pitch of 5ยบ.
Loads are calculated in accordance with table 3 1 of as nzs 1170 1 2002.
Boxspan steel beams used in australian building for over 20 years.
Cpe 0 9 and cpi 0 2.
From span table c the maximum allowable single span is 2160mm.
Spacing should be interpreted as the centre to centre distance between adjacent parallel members.
Required size for a given span.
Safe roof purlins spans.
Reading off the empty under table with h 5m hc 2 5m span table c will be used to determine the spans.
