01-25-2012, 06:13 PM
Steel Building Design: Worked Examples – Open Sections (SCI P364)
Author: Steel Construction Institute | Size: 3.4 MB | Format: PDF | Quality: Unspecified | Publisher: Steel Construction Institute | Year: 2009 | pages: 225 | ISBN: 978-1-85942-183-3
This publication presents twenty design examples to illustrate the use of Eurocodes 3 and 4 for the design of structural open section members and connections. The examples all use the Nationally Determined Parameter values recommended in the UK National Annexes.
While preparing the examples for this publication, the emphasis has been to illustrate the design process in accordance with the Eurocodes and not necessarily to reproduce practical situations. Other solutions may be equally acceptable to those given. No consideration has been given to the influence of factors related to erection and fabrication; the consideration of these factors and the standardisation of sizes may well lead to solutions with better overall
economy than those given.
All the design examples assume the use of either S275 or S355 steel that complies with EN 10025-2.
In addition to the design of simple structural members, examples are included for simple connections used in buildings. Design guidance for simple connections will be given in SCI publication P358 Joints in steel construction:
Simple connection in accordance with Eurocode 3(due to be published in 2010).
Where a reference is made to P363 or the “Blue Book” this refers to Steel building design: Design data. In accordance with the Eurocodes and the UK
National Annexes.
In the examples, references are made to Eurocode Parts and to product standards. The Eurocode Parts and most of the product standards were prepared initially by CEN and all their internal references are made using the ‘EN’ designations. However, all these standards are published in the UK under a ‘BS EN’ designation; that designation has been used.
References to clauses introduced in the National Annex are distinguished by their NA prefix, for example, as NA.2.3. Unless otherwise stated, the clause and table numbers given in the right-hand margin of the worked examples refer to the Eurocode Part specified at the start
of each example.
Reference is made in some design examples to non-contradictory complementary information (NCCI). Such information might provide additional guidance to designers but care must be taken not to use any guidance that would conflict with the Eurocodes.
One instance where NCCI is needed is in determining the non-dimensional slenderness LT for lateral torsional buckling, which EN 1993-1-1 states may be derived from the elastic critical moment Mcr, although no method is given for determining the value of Mcr. Sources of NCCI for Mcr include:
Formulae in text books
Software, such as ‘LTBeam’ (available from the CTICM website)
Alternatively, a conservative simplified method for determining LT directly is given in SCI publication P362 Steel building design: Concise Eurocodes.
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