BS 5950-1:2000 Structural use of steelwork in building - Code of practice for design. Rolled and welded sections
Withdrwan
This part of BS 5950 gives recommendations for the design of structural steelwork using hot rolled steel sections, flats, plates, hot finished structural hollow sections and cold formed structural hollow sections, in buildings and allied structures not specifically covered by other standards. NOTE 1 These recommendations assume that the standards of materials and construction are as specified in BS 5950-2. NOTE 2 Design using cold formed structural hollow sections conforming to BS EN 10219 is covered by this part of BS 5950. Design using other forms of cold formed sections is covered in BS 5950-5. NOTE 3 Design for seismic resistance is not covered in BS 5950. NOTE 4 The publications referred to in this standard are listed on page 213. Detailed recommendations for practical direct application of “second order” methods of global analysis (based on the final deformed geometry of the frame), including allowances for geometrical imperfections and residual stresses, strain hardening, the relationship between member stability and frame stability and appropriate failure criteria, are beyond the scope of this document. However, such use is not precluded provided that appropriate allowances are made for these considerations (see 5.1.1). The test procedures of 7.1.2 are intended only for steel structures within the scope of this part of BS 5950. Other cases are covered in Section 3.1 or Parts 4, 5, 6 and 9 of BS 5950 as appropriate.
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BS 5950-1 gives recommendations for the design of structural steelwork using hot rolled steel sections, flats, plates, hot finished structural hollow sections and cold formed structural hollow sections, in buildings and allied structures not specifically covered by other standards.
BS 5950-1 has been amended to take into account the issue of a number of new related standards adopting European or international standards for materials and processes, plus revisions to standards for loading.
Technically updated clauses include those for:
• sway stability
• avoidance of disproportionate collapse
• resistance to brittle fracture
• local buckling
• lateral-torsional buckling
• shear resistance
• stiffeners
• members subject to combined axial force and bending moment
• joints
• connections
• testing
In all cases the reason for changing the recommendations on a topic is structural safety, but where possible some adjustments based on improved knowledge have also been made to the recommendations on these topics to offset potential reductions in economy.
Some of the text has been edited to reduce the risk of misapplication. In addition some topics omitted until now have been added, including separators and diaphragms and eccentric loads on beams.