First published: N/A
Standard: £9 + VAT
An IStructE account gives you access to a world of knowledge. Create a profile to receive details of our unique range of resources, events and training.
Added to basket
A SINGLY reinforced rectangular beam designed in accordance with the provisions of the cbde of practice for A 1:2:4 concrete with steel to B.S.S. No. 15 stressed to 20,000 lbs./in.2, has a value for Q (= MR/bd2) at working load of from 130 to 206, according to the quality of the concrete. If such a beam is tested to destruction the ultimate value of Q is unlikely to reach two and a half times the above values.
Dr. D. D. Matthews (Past President): In my view the answer to the question raised in the title of this evening’s paper is a simple affirmative. Dr. Beeby has raised a number of interesting points and treated them in a workmanlike manner. He points out the inconsistencies in the way one-way spans are treated, particularly in comparison with two-way slabs supported along their edges, and, to a lesser extent, flat slabs.
This paper deals with the various factors that affect the racking resistance of timber framed panels. The principal factors are the sheathing materials, the extent of vertical loading, the length of the panel, openings, holding down and the nail spacing. Other factors are generally of lesser importance. Test results relating to these factors are analysed, and a relationship is derived for each factor. The effects of outer claddings and inner linihgs are discussed very briefly. A simple design method for calculating the allowable racking resistance of panel assemblies is
R.A. Robertson and D.R. Griffiths