Composite I-section - cpis

This is a section frequently adopted for the modelling of simply-supported composite beams (note that the reinforcement in the concrete slab is currently not modelled, hence the section will have a reduced negative moment resistance capacity).

Materials and Dimensions

Two different materials can be defined; steel profile, concrete.

The required dimensions are as follows:

• Bottom flange width. The default value is 0.1 m
• Bottom flange thickness. The default value is 0.01 m
• Top flange width. The default value is 0.2 m
• Top flange thickness. The default value is 0.015 m
• Web height. The default value is 0.3 m
• Web thickness. The default value is 0.015 m
• Slab effective width. The default value is 1 m
• Confined width in slab. The default value is 0.95 m
• Slab thickness. The default value is 0.15 m
• Confined thickness in slab. The default value is 0.1 m