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The Structural Engineer, Volume 56, Issue 12, 1978
In the United Kingdom most highway bridges go to tender with a fully detailed design, bill of quantities, and specification. Alternative designs are permitted but, with the limited tender periods and the complications of the independent structural check recommended by the Merrison Committee and required by the Department, these are rarely offered by tenderers. However, some contractors have advocated the adoption of continental contractural methods. Design and build tendering was adopted for the Kessock Bridge only because tender prices-firstly for foundations and secondly for the whole bridge-greatly exceeded the estimates.
Mr. W. J. Mackenzie (Slough Estates Ltd): The company I represent is a major customer of the building industry. Furthermore, being a repeat customer, it is rather more discerning and critical than many of the one-time buyers who come to the profession and to the industry for a building. We have, for some time, felt dissatisfied with the performance of the industry. The company is paying more and waiting longer for buildings, and the resulting product is inferior to what can be bought overseas, as regards both specification and aesthetics. The general standard of buildings on industrial estates around the country is poor and compares unfavourably with standards elsewhere in the world. It is essential for the customer to demand higher performance and to express his dissatisfaction.
Mr. Tutt reported that further results were now available. These were for 215 mm thick walls, similar in size and shape to those already reported, and for 'C' shape walls, i.e. walls supported on both horizontal edge and one vertical edge. These new results are given in Table 1.