This Part of BS 5950 and Amendment No. 1 have been prepared under the direction of Technical Committee B/525, Building and Civil Engineering and Structures. BS 5950 comprises codes of practice which cover the design, construction and fire resistance of steel structures and specifications for materials, workmanship and erection. It comprises the following Parts and Sections:
Part 1 Code of practice for design in simple and continuous construction: hot rolled sections
Part 2 Specification for materials, fabrication and erection: hot rolled sections
Part 3 Design in composite construction
Section 3.1 Code of practice for design of simple and continuous composite beams
Part 4 Code of practice for design of composite slabs with profiled steel sheeting
Part 5 Code of practice for design of cold formed sections
Part 6 Code of practice for design of light gauge profiled steel sheeting
Part 7 Specification for materials and workmanship: cold formed sections
Part 8 Code of practice for fire resistant design
Part 9 Code of practice for stressed skin design
This Part of BS 5950 gives recommendations for the design of light gauge profiled steel sheeting as roof decking, flooring, and cladding and its provisions apply to the majority of structures, although it is recognized that cases will arise when other proven methods of design may be more appropriate. It is intended to be compatible with BS 5950 : Parts 1 and 5 and, at the same time, to be as self-contained as possible.
This Part of BS 5950 is primarily equation orientated, so that the rules can be easily programmed on desk-top computers which are now familiar in design offices. However, to assist the designer in obtaining simple and rapid analysis, it is possible in many situations to use the various tables and graphs provided, instead of calculation via the equations.
This Part of BS 5950 does not apply to other types of steel structures for which appropriate British Standards exist. It has been assumed in the drafting of this British Standard that the execution of its provisions is entrusted to appropriately qualified and experienced people and that construction and supervision are carried out by capable and experienced organizations.
This Part of BS 5950 gives recommendations for the design of light gauge profiled steel sheeting used as roof decking, flooring and roof and wall cladding, including the design of profiled steel sheeting as permanent formwork for composite slabs. It covers single and double skin cladding, but not the design of cladding elements which are not required to carry wind or snow loading. It is primarily intended for a net thickness of steel material up to 2 mm. It does not cover the design of sections with large bend radii.
This Part of BS 5950 applies to profiled steel sheets which consist either of a series of stiffened or unstiffened trapezoidal flutes or of other ribbed profiles which behave in a substantially similar manner. Such sheets are generally made up of flat elements bounded either by free edges or by bends with included angles not exceeding 1358. It also applies to profiled steel sheets which are embossed for use in composite slabs.
Only resistance to out-of-plane loading is covered in this Part of BS 5950. For resistance to in-plane loading by diaphragm action see BS 5950 : Part 9. For the design of composite slabs using profiled steel sheeting acting compositely with concrete see BS 5950 : Part 4.
