Author: Chen, L K;Wong, K C
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Chen, L K;Wong, K C
The Structural Engineer, Volume 41, Issue 5, 1963
In a number of structural engineering applications use is made of high tensile steel cables for load carrying purposes, e.g. suspension bridges, guyed masts, overhead electric lines and cableways. In many of these applications the cable is uniformly loaded and hence hangs in a catenary. When a structure incorporating one of these elements has to be analysed difficulties are encountered due to the non-linear response of a catenary to applied loading. This paper gives graphical and analytical data together with the linearized stiffness matrix for a catenary element which enable speedy calculations to be made. The application of this to the analysis of an electric line river crossing is given. T. J. POSKITT
The President, recalling the author’s reference to the cost of 20-storey tenements in Hong Kong as being 7 1/2d. per cubic foot for the structure or 9d. per cubic foot including foundations, asked whathe cost in Hong Kong of flats or other dwellings comparable with similar buildings in this country was.
The following notes describe the repair carried out to the soffit and sides of precast prestressed beams damaged by fire. The method used involved full live loading of the construction to simulate the conditions of the original design as it concerned the state of stress in the concrete. The full loading condition also provided a satisfactory test of the composite construction and the combination of prestressed concrete and in-situ reinforced concrete acting together as a continuous structure. A.T. Clarke