CONTINUOUS COMPOSITE BEAM ANALYSIS AND DESIGN OF CONTINUOUS COMPOSITE BEAMS AND SLABS ANALYSIS | DESIGN | DETAILING | X02
Various spans can be defined, and each span can consist of more than one section. This allows for economical design because you can have a section with reinforcing in the flange to be used in regions of hogging and another without reinforcing in the flange for sagging regions. Construction loads and construction supports can be entered which will affect the construction phase’s analysis and design. When the construction phase is complete and the concrete and steel can achieve composite action, the construction loads and supports are removed, and the beam is re-analysed and designed. This all happens automatically without any additional user input required.
The module reads sections from the PROKON Section Database which contains the steel sections used in most countries.
Possible ULS loads include distributed loads, point loads, and point moments at any point along the beam.
The design output includes elastic deflections, long term deflections, shear forces and bending moment envelopes along the length of the beam.
Theory used in this module The module calculates the sagging and hogging resistance of composite beam sections according to rigid-plastic theory in Section 6 of EN 1994-1-1:2004 (Eurocode 4). It can evaluate both full shear connection and partial shear connection designs using plastic theory. The module verifies that the section is either a Class 1 or a Class 2 section as required for rigid-plastic theory design. It accounts for longitudinal reinforcement in compression (if present) for sagging resistance with the assumption that such reinforcement is fully anchored.
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