Concrete Design to EN 1992, Second Edition by Lawrence Martin, John Purkiss

By Lawrence Martin, John Purkiss

The transition from nationwide criteria for concrete structural layout to Eurocode EN 1992 is the most important switch to concrete layout for decades.

This new version of Concrete Design explains the foremost variations among BS8110 and EN1992, and teaches the basics of the layout of concrete buildings to conform with the Eurocodes.

With many illustrations and labored examples, this obtainable textbook teaches the necessities of concrete layout to EN1992 to scholars and pros alike.

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Additional info for Concrete Design to EN 1992, Second Edition

Example text

1 per cent proof stress, varies from 1000 to 2000 MPa depending on the size of tendon and type of steel. 3 DESIGN STRENGTH The design strength allows for the reduction in strength between the laboratory and site. Laboratory samples of the material are processed under strictly controlled standard conditions. Conditions on site vary and in the case of concrete: segregation can occur while it is being transported; conditions for casting and compaction differ; there may be contamination by rain; and curing conditions vary especially in hot or cold weather.

The limits are that the ratio of the distance between lateral restraints l0t to the width of the compression flange b is given by  For persistent situations l0 t b 50 ðh=bÞ1=3 ð4:4Þ where h is the overall depth of the beam, and the ratio is subject to the limit h/b 2,5.  For transient situations l0 t b 70 ðh=bÞ1=3 ð4:5Þ where h is the overall depth of the beam, and the ratio is subject to the limit h/b 3,5. 2 Columns For columns there is a minimum slenderness set for the condition where second order effects need not be considered.

Laboratory samples of the material are processed under strictly controlled standard conditions. Conditions on site vary and in the case of concrete: segregation can occur while it is being transported; conditions for casting and compaction differ; there may be contamination by rain; and curing conditions vary especially in hot or cold weather. The design strength of a material is therefore lower than the characteristic strength, and is obtained by dividing the characteristic strength by a partial safety factor ( m).

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