The program designs the following section types:
The user specifies the topping dimensions, properties and reinforcement, parameters that specify the type of shear connection, details on short term vs. long term loading, etc. The program then selects the lightest steel section that provides the required composite section capacity (the topping dimensions are not modified by the program during the steel beam seletion process).
The program differentiates between areas of positive and negative moment:
- positive and negative moment: designed as composite sections
- negative moments: designed as non composite steel sections (with reinforcement in the slab, if specified).
Also checked: shear (vertical, horizontal), axial, deflections, LTB, combined forces.
There are two options for stud design:
- Compute no, of studs
The program will compute the total number of studs required for full capacity.
- No. of studs per beam
The user specifies the number of studs in the positive moment region of the beam.
If the number of studs is less than the number required to develop the positive moment capacity of the selection, the program designates the beam as having a "partial shear connection" and reduces the bending capacity accordingly.
The number of studs in negative moment regions cannot be specified if topping reinforcement is specified, the program assumes full shear connection in the negative moment region.
Loads on the composite beam may be applied at two different stages:
- To the non - composite steel beam
- To the composite steel and topping beam, either as a short-term load or as a long term load.
The load application stage may be specified for each load case.