Where joist ends have rigid connections or are over multiple.
Steel roof truss span table australia.
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.
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.
Reading off the empty under table with h 5m hc 2 5m span table c will be used to determine the spans.
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.
Design of single span rafters in roofs in houses office buidlings schools and other structures.
Use recommended minimum roof pitches as specified by roof sheet supplier.
Cpe 0 9 and cpi 0 2.
Spantec has prepared these tables for use by people skilled in the design and specification of the.
Spacing should be interpreted as the centre to centre distance between adjacent parallel members.
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.
High pressure zones kl 1 5 and 2 0 included.
Safe roof purlins spans.
Appendix c span tables c 1 introduction this appendix has been taken from the onesteelpublication design note no.
This is set by the roof use you selected in the previous screen and cannot be modified.
The imposed uniformly distributed live load in the main span.
It is intended that these tables will be used by engineers to assist in the preliminary design.
The safe spans below are suitable for sheds and class 1 structures with the following assumptions.
These boxspan residential span tables provide detailed product design and typical installation information.
It contains span tables covering various primary and secondary beam spans with common design floor loadings.
Here wind load governs ie in excess of 0 4 kpa the span shall be reduced.
Required size for a given span.
Flat roof span tables allow for a maximum roof pitch of 5ยบ.
No provision has been made for the 1 3kn concentrated load.
Roof load width rlw and floor load width flw can be determined from as1684 or from the images below.
Max roof span allowed 12m.
All spans to have 1 row of bridging.
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.
