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Microcomputers It is now nearly a year since Mr B. C. Bird asked his question about frame analysis programs for the 48K Spectrum. Since then we have had a substantial response from our readers, drawing attention to programs and problems associated with their use. This month we have three more letters. Mr K. Tregear, writing from Nizwa in the Sultanate of Oman, says that he was most interested to read, in the December issue, of the approach by Mr Bradfeld to the design of rectangular beams and slabs in accordance with the CP 110 idealised stress block.
The paper describes the development of the design of Kylesku Bridge as a sequence of design studies and decisions, from studies of the location of the new bridge and of different types of structure to final design. The new bridge is a frame with V-shaped supports. It is built in concrete and the deck is a box girder that is prestressed. The bridge was designed to be built in stages and within constraints that were specified in the contract documents. J. Nissen, K. Falbe-Hansen and H.S. Stears
The papers and a summary of the discussion of the 1984 IABSE Henderson colloquium on liability will be printed and available for purchase shortly. However, to present the major conclusions and problems identified in this IABSE colloquium to a much wider spectrum of professionals within the construction industry, for the purpose of delineating positive steps for reform, a 1-day symposium will be held jointly by the Institution of Structural Engineers and the International Association for Bridge & Structural Engineering on 29 May 1985, further details of which will be published shortly. In the meantime, Alec Sandberg summarises the main points discussed, conclusions reached, and problems identified. A.C.E. Sandberg