Author: Roberts, J M
First published: N/A
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Roberts, J M
It was on 21 May 1894 that Queen Victoria made her Royal visit to Manchester to proclaim the £15M construction ofthe Manchester Ship Canal ‘well and truly open ’. Over the past 1O0 years the Ship Canal has served the region well, and its fortunes have been closely allied to all the vagaries of the political and economic climate, the effects of two World Wars and the general changes in the methods of conveying and handling freight.
On Saturday 14 May 1994 Blackpool Tower celebrated its centenary. To commemorate this occasion a technical paper and correspondence relating the the design and construction of the tower, first published between 1893 and 1895, are reproduced below.
This paper describes a conceptually simple and computationally eficient method of determining the collapse load of structures comprising of a number of masonry blocks. The method uses the upper-bound theory of plasticity in conjunction with geometrical compatibility criteria to obtain solutions to problems involving single- and multi-span arches; well established rigorous linear programming methods are used to obtain solutions. Specific parameters such as ring separation and attached spandrel walls can be modelled using the method. It is expected that case studies will be described in subsequent papers.
M. Gilbert and Professor C. Melbourne