FRP Wrapping

FRP wraps may be assigned to columns and walls. The user may select the FRP sheet from a list of the most commonly used products found in the market, or alternatively introduce user-defined values. A number of properties may be defined for the FRP Wraps contained in the list, such as:

• the number of applied layers;
• whether the dry or the laminate FRP properties are to be used in the calculations;
• the radius of rounding of the corners R for the rectangular cross sections (a critical parameter in the application of FRP wraps).

In case of User-defined FRP Wrap, apart from the properties above, the following should be also defined:

• the FRP sheet properties: the thickness, the tensile strength, the modulus of elasticity and the elongation at failure
• the type of the FRP sheet (Carbon, Aramid, Glass, Basalt or Steel fibres);
• the number of direction(s) and the orientation of the fibres.

Note: Users may propose FRP systems to Seismosoft through the “Propose FRP system to Seismosoft” button, in order to be included in newer releases of the program.