An Experimental and Theoretical Investigation of Modern Box Beams in Perspex and Micro Concrete

No correspondence is as yet forthcoming from consulting engineers retained by authorities to appraise structures or from engineers who design for commercial firms on their experience of design checking under the requirements of Building Regulations, its value and quality and the general matter of responsibility, but we remain hopeful that comment will come from these quarters soon. It would add considerably to the exchanges of views already published. Verulam

A description of the general behaviour of a beam-column connection with dowel reinforcement is given, summarizing the observations on 80 laboratory tests, and the effect of the main variables is explained. The test results are considered in conjunction with previous work on the strength of dowels and on shear transfer in composite members to develop a formula for the design of this type of connection. E.W. Bennett and S. Banerjee

Mr. W. J. S. Gover (Redpath Dorrnan Long) : I would like firstly to express some surprise that, on the basis of one worked example and using estimated figures, Mr. Haseltine should come up with so sweeping a statement as 'a steel frame uses considerably more energy than a concrete one'. However, I do not think it serves any useful purpose here to become involved in long arguments about the numbers. Suffice it to say that I and my colleagues in the structural steel industry have considerable reservations about the figures used.