Fully encased composite I-section - fecs

This is a section frequently adopted for the modelling of composite columns.

Materials and Dimensions

Four different materials can be defined; longitudinal reinforcement, transverse reinforcement, steel profile, concrete.

The required dimensions are as follows:

• Flange width. The default value is 0.2 m
• Flange thickness. The default value is 0.015 m
• Web height. The default value is 0.25 m
• Web thickness. The default value is  0.02 m
• Stirrup width. The default value is 0.31 m
• Section width. The default value is 0.35 m
• Stirrup height. The default value is 0.36 m
• Section height. The default value is 0.4 m
• Cover Thickness. The default value is 0.025 m

Reinforcement

Longitudinal reinforcement bars can be defined in two different ways:

1. by editing the reinforcement pattern;
2. by entering the respective area and sectional coordinates (the latter being defined in the local coordinate system of the section).

Further, the transverse reinforcement may be specified, in terms of the stirrups' diameters and legs, as well as the distance between them.