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Most structural engineers will have been familiar with CP111 Structural recommendations for loadbearing walls, first published in 1948, revised in 1964, and metricated in 1970. The Code was amended from time to time but was lacking in guidance in several important areas, e.g. the lateral strength of walls and accidental loading. It contained a very short section on reinforced brickwork walls which was not sufficient to enable the material to be used in an economical way. The workmanship, nonstructural design, and some materials aspects of masonry, were dealt with in CP121 Code of practice for walling: Part l: Brick and block masonry, published in 1951 and revised in 1973. B.A. Haseltine
BS 5268 is a compendium of Codes covering the structural use of timber. It brings together design stresses, design methods, and some general guidance on the structural use of timber. It covers the major structural uses of timber, particularly in buildings, and can be used as the basis for design of all timber structural members such as floor and ceiling joists, wall panels, roofs, trussed rafters, and fabricated structural components, such as glued laminated structures and plybox beams. It also covers related information for design against fire and protection against fungal decay and insect attack. BS 5268 is being published in seven Parts: J.G. Sunley
BS 8110 replaces CP 110: 1972. The fields of structural concrete covered by the two Codes are identical: reinforced and prestressed, in situ and precast. The BS reference is rather misleading and is to be regretted since BS 8110 is a Code of Practice and not a Standard. There are no major changes in principle from the earlier edition, but the text has largely been rewritten with alterations in the order and arrangement of topics. The redrafting and alterations have been made in the light of experience of the practical convenience of using CP 110: 1972. D.D. Matthews