Published Resources Details
Journal Article
- Title
- Struts in triangulated frames
- In
- Civil Engineering Transactions
- Imprint
- vol. CE3, Institution of Engineers, Australia, Mar 1961, pp. 1-
- ISBN/ISSN
- 0020-3297
- Abstract
The application of plastic theory methods to the prediction of collapse loads of rigidly jointed framed structures has been successful because of the ability of rolled steel sections to develop a substantial hinging action without suffering a reduction in moment of resistance.
Triangulated frames can also develop a similar hinging action in their panels through yielding of the appropriate tension or compression members. Where struts are concerned there exist, however, two major uncertainties that have so far precluded the application of the simple plastic theory to triangulated systems. Firstly, there is the difficulty of predicting accurately the ultimate load capacity of certain types of strut. Secondly, there is very little known of the extent of the plastic range of behaviour that can be relied upon to occur at this ultimate load.
In an attempt to remove these uncertainties, an extensive programme of experimental and theoretical investigations into the behaviour of rigidly jointed frames has been carried out in the Department of Civil Engineering, University of Melbourne. In particular, the action of a strut up to, and beyond, its ultimate load capacity has been studied. From these investigations, it has been possible to formulate expressions that describe the action of a strut under a wide range of practical conditions, and these now provide a guide for the application of plastic theory methods to systems containing such members. Semi-empirical relationships derived elsewhere have also been tested by comparing their predictions with the Melbourne results and substantial agreement has been obtained.