A Look at North American Practice in the Use of Corrugated Sheeting

Last month we published the first response we have had on design checking from an engineer working with a commercial firm engaged in 'design and build' activities. In it Mr. Ely commented on problems inherent in the arrangement where consulting engineers scrutinize design on behalf of an authority. We now have a letter from an engineer in the latter capacity. Mr. R. E. Brand comments: This letter is in response to your article in the April issue of The Structural Engineer. For the past two years, I have been responsible, through my firm-E.A.R. Sheppard Consultants-for the checking of structural designs and site supervision all on behalf of the Borough Engineer, Eastbourne. Verulam

Mr. T. N. W. Akroyd (F): I have listened with interest to Dr. Bate, and whilst it is customary at this beginning of term to extend the Christmas spirit of goodwill to our discussions, I regret tonight's discussion hardly allows room for the Christmas euphoria to continue. The theme of Dr. Bate's introduction is, that workmanship clauses in Codes of Practice and the usual site inspections of workmanship under those Codes are unsatisfactory. I noted with a certain grim satisfaction that Dr. Bate has suggested that the drafting of workmanship clauses is open to commercial, political and other pressures.

The paper describes lateral loading tests carried out on six full sized single-leaf blockwork walls. The walls were in three sets, one of each set having its vertical edges simply supported and the other having continuity over its vertical edges. Two different block thicknesses were used. The tops of all the walls were unrestrained. C. Anderson