Author: Lee, S L;Harwell, R S;Wiesinger, F P
First published: N/A
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Lee, S L;Harwell, R S;Wiesinger, F P
The virtual work equation by which flexural deformations are related has been corrected to allow for the effect of axial compressive forces. These corrections can be applied wherever the end moments on an axially loaded member are defined and are particularly useful in the determination of the elastic critical loads of structural
systems by reiterative numerical methods.
The paper begins with a brief description of an operation on an ordinary steel-framed building which was in danger of collapse. Glass played an important role in preventing the complete collapse of this building before the remedial works were put in hand. Attention is directed to the inherent strength of glass, which is very much in evidence when glass is drawn into fine filaments. Descriptions of glass reinforced plastics and other ' two-phase ' materials follow and details of the various types of glass reinforced plastics are included. The properties of glass reinforced plastics, structural steel and aluminium alloy are tabulated for comparison. In conclusion possible future developments in the field of 'two-phase' materials are mentioned and structural engineers are reminded of the necessity to familiarize themselves with the
properties of these new materials and to assist in their development for structural purposes.
The paper offers a solution in general terms for the design of the two major types of power station in use today. The variety of problems confronting the engineer when preparing a design for either a conventional, coal-fired or a modern, nuclear-powered station are discussed and special reference is made, under the following sub-headings, to a number of essential factors which control the design and construction of a power