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The Structural Engineer, Volume 60, Issue 3, 1982
A nuclear structure facility is currently being developed by the Science and Engineering Research Council at their Daresbury Laboratory. This facility incorporates a 30 MV tandem Van de Graff electrostatic accelerator. The primary function of the accelerator is to accelerate both light and heavy ions. J. Cook, J.F. Dickie, M.C. Morris and Professor T.J. Poskitt
The eighth in the series of Surveys undertaken by the CEI was conducted in the summer of last year. The results, as applying to all chartered engineers, Graduates and Associate-Members of chartered engineering institutions, were published in December 1981. Copies of the full Survey can be obtained from the CEI, 2 Little Smith Street, London SWIP 3DL, price £lO.OO.
In connection with the drafting of the Code of Practice to succeed BS 449, two distinct problems were revealed relating to bolt strengths. The current values for 8.8 bolts in direct tension appeared disproportionately low having regard to ultimate tensile strength (UTS) values, compared to general grade high strength friction grip (HSFG) bolts. Also, no guidance is currently given on the ultimate shear values of general grade HSFG bolts,. although the use of a load factor of 1.4 against slip must imply that such bolts possess further capacity after slipping into bearing. M.H.R. Godley and F.H. Needham