Author: Rhodes, Peter S
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Rhodes, Peter S
Mr. B. Rhodes: Mr. Longbottom has done less than justice to large diameter strand, by which I mean 28 mm (1 1/8 in) diameter strand. I know it is not used a lot, but this is really because of lack of effort on the part of the manufacturers and the system suppliers. 28 mm diameter strand has certain basic drawbacks, namely: 1. The shape of the load/extension curve 2. Relaxation losses at 6 per cent 3. Lower grip efficiencies 4. The tendency to fly open when cut 5. The 'banana' effect at the ends
Professor S. Mackey (F) : My main concern is to learn why, in Britain, limited records of wind and pressure measurements are being extrapolated to such a degree that if applied to Hong Kong conditions would render economic design of buildings impossible.
As reported in Institution Notes on page 322, the Council recently asked the Secretary of State for Energy to take action to solve a number of difficulties experienced by British engineers working on the design of North Sea installations. The disquiet felt by the Institution was set out in detail in an appendix to a letter to the Minister, the text of which is given below.