Author: The Institution of Structural Engineers
1 September 2013
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The Institution of Structural Engineers
This Technical Guidance Note provides information about a number of common floor construction forms that are currently available. It focuses on concrete based solutions: some acting compositely with steel elements,such as reinforcement and/or steel members. Descriptions of each flooring system together with their key features (which cover topics such as buildability, aesthetics and compatibility of other elements e.g. buildingservices) are included. Please be aware that floor slab technology is continually evolving and that new floor slab solutions continue to become available as a result.
(This article was updated in October 2016 to reflect errata issued since its original publication.)
This note describes the basic knowledge required to read structural drawings.
Moment distribution is a method by which statically indeterminate structures are analysed elastically. It’s based on the relative stiffness of elements, and shifts bending moments from one section of the structure to another until they become balanced. Once this balance has been achieved, forces and bending moments are modelled. Updated in October 2016.
Once the concept and scheme design has been determined, initial sizing of elements commences. This note shows how to size elements, prior to detailed design. This process allows the engineer to gain an appreciation of structural form.