Appraisal of Existing Iron and Steel StructureS
This publication gives guidance on the appraisal of existing iron and steel structures.
It deals mainly with building structures in cast and wrought iron, and in steel up to
1968 (when BS 4360 was introduced). A historical account of the manufacture of
these materials and their use in building construction is provided, in order to
highlight differences in design, forming, fabrication, and connection methods as
compared with present-day practice. Guidance on appraisal strategy is accompanied
by reviews of relevant material properties, defects, and methods of investigation of
the existing structure. The assessment method offers a three-stage approach to
calculations for checking structural adequacy, and also considers adequacy in fire.
Load testing is discussed as a complementary method of checking structural
adequacy. The three final sections consider methods of structural repair,
strengthening and replacement, fire protection, and corrosion protection.
References and a Bibliography are provided. Three Appendices list principal
sources of available information, provide background details of the historical
development of column analysis, and summarise current research on structural cast
iron.
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