TIMBER I-JOIST STRUCTURAL BEAMS
CHEAPER - LIGHTER - STRONGER STRUCTIAL SOLTIONS
INTRODUCTION
The principle behind I-Joist technology is about putting strength where it is needed at the lowest possible cost. Hence the top and bottom flanges do most of the work, whilst the web keeps the flanges apart and takes care of shear forces.
The range of I-Joists we offer has been developed specifically for use on the African continent. Low level on site skills are required whilst at the same time the product is supported by engineering services on an internationally accepted level.
The maximum depth of the web is determined by a formulation that we have developed and which prevents the webs from buckling under heavy loading conditions. The flange materials can be changed to suit various load and economic factors in the design. Currently we use only high grade Pine and Saligna (Super=Lam). The webs are cut from exterior quality plywood, not less than 12mm thick and are glued into a specially developed slot in the flanges. The flange and web are secured with resorcinol adhesive, generally as described in BS 1204 (WB/BP) and SANS 1349 (Exposure Class 1 weather proof / boil proof) and SANS 1720 (Laminated Timber).
TWO RANGES OF I-JOISTS
Timber I-Joists Two Ranges of I-Joists
There are currently two ranges of timber I- Joists available to the African and Middle Eastern markets. The standard range has high grade SA Pine flanges, whilst the heavy duty or industrial range has SuperLam (Saligna Grandis) flanges.
As a standard issue, both ranges are supplied with 12mm exterior plywood webs which can be altered in thickness and depth to suit various applications. Both ranges of I-Joists have similar accessories, however, should special products be needed they will be designed and supplied through Engineering Services.
All tables in this manual have been engineered, the size and cost comparisons have been carefully worked out to ensure a direct comparison to laminated beams.
We have been around for a long time and have gained much knowledge and experience along the way. As the only supplier on the African continent are able to offer our product range to the African and Middle Eastern markets with confidence. This is based upon 27 years experience and sound engineering principles which lead to a world class range of structural support members. All structures supplied by Eco Structural Products cc are rational design.
SOLID PINE FLANGED & SALIGNA I-JOISTS TABLES
