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The Structural Engineer, Volume 66, Issue 10, 1988
Design of flat slabs to BS 8110 Mr A . C . Shapcott of Horsham asks for enlightenment over the reasoning behind the factors given in Table 3.19 of the Code for the empirical design of flat slabs. He refers in particular to the moment values achieved at the first interior support: It appears that, historically, the slab moment values have been higher (CP114 and CPllO), but now equate to WL/16, the ‘L’ being modified in all cases. I note that the total moment at the joint equates to the old values, but at worst any stiffness analysis of slab alone should approach Table 3.13 values. Verulam
Heathall, situated on the outskirts of Dumfries, was chosen for the construction of a factory by Arrol-Johnson Motor Car Company. This, now listed, building was completed in 1912 and was the first ferro-concrete factory erected in Britain. The main elevation is 170 m long, from which there are five projecting wings to the rear. The external construction is exposed reinforced concrete framing with brickwork dado walls and infill glazing. It has remained serviceable throughout its continuous life, and the original form has been maintained and enhanced through the current structural improvement works. C. Dinardo and J.R. Ballinghall
Dr. E. J. O’Brien (Roughan & O’Donovan (formerly, de Leuw, Chadwick & OhEocha)): I read this paper with great interest, as I am currently designing a grain germination vessel that is, in many respects, similar to the domed structures described.