This Manual has been compiled for those practitioners inexperienced in the use of plywood and LVL as a structural material, but on occasions find they offer an optimum solution to their structural problem. It is also hoped the Manual will prove useful as a reference for students of architecture, building and engineering enrolled at TAFE Colleges and Universities.
The main objective of the worked examples is to provide guidance in the solution of practitioner’s immediate problems and encourage further, more innovative use of these fully engineered, ‘fit for purpose’ materials.
The main objective of the Manual is to provide the user with, as nearly as practicable, all the design information required for the solution of a range of problems, under the one cover. Australian Standards, e.g. AS 1720.1-1997, Timber Structures and other references will still be required.
Design methodology for the solution of a range of structural problems is presented in a step-by-step format. A worked example is then done which includes Code references. The methodology presented will provide an adequate solution. However, there is no doubt, through the availability of modern technology other more efficient and economical solutions may be implemented. Until complete familiarity with the idiosyncrasies of the material and the design concepts have been fully digested the contents of the Manual will provide a more than adequate solution.
Not every structural component has been considered. For example, trusses have not rated a mention. The thought behind this omission was ‘a truss is a truss is a truss” and the major concern with truss design is to ensure the adequacy of the tension members. LVL ensures this requirement can easily be satisfied. On the other hand, however, it may be questioned why structures not considered to be the norm, e.g., folded plates, arches, hypars and domes rated a chapter. The reason behind this inclusion, be it right or wrong, is to provide the reader with some ‘motivational fodder’ to encourage ‘thinking outside the square’ during the preliminary design stage.
The chapter dealing with connections is considered to be of prime importance, and therefore, the ‘centre of gravity’ of the Manual. If the designer cannot get member connectivity right, irrespective of how well individual elements and components are designed, the structure will be ‘doomed to failure’.
In the writing of such a technical document there will invariably be mistakes, even though subjected to independent checks. Therefore, the EWPAA welcomes correspondence regarding these, together with suggestions relating to improvements and additions. The EWPAA contact details are on the back cover of this manual and are also available from the EWPAA web site.