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The Structural Engineer, Volume 60, Issue 3, 1982
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.
A brief history is given of spectator facilities for the game of squash and related sports, culminating in the proposed ‘all glass’ demountable courts for use in suitable indoor spectator arenas. Design constraints and two alternative preferred structural forms for such courts are described, one utilising the glass walls as the only vertical loadbearing elements to support a court ceiling. The theoretical arrd load testing justification of these structures is considered, together with some proposed constructional details. Plastic is assessed as an alternative material to glass, Some other uses for related loadbearing glass structures are suggested. G.R. Hill
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