Truss Design Module HelpSteel design criteria for NBR 8800 Steel design criteria for NBR 8800 Flexure parameters CLT restraint LB pos LB neg Compression parameters CFT Restraint Conn. TSL Consider Eccentricity Shear parameters a (Stiffeners) CLT restraintSets the member with continuous lateral-torsional restraint. This flag affects only the design calculations and when it is used the lateral torsional buckling (LTB) is not considered in the design.LB posLB negCFT RestraintThis options indicates whether the member has continuous torsional and flexural-torsional buckling restraint. If so, the limit state of flexural-torsional and torsional buckling will be ignored in the compression design.Consider EccentricityEnabling this option the single angle member slenderness will be calculated according to the section 6.5.4. If the option is unchecked, the design of the single angle will be according to section 5.3.Conn. TSLThis option is only for single angle compression members and defines that the member is connected through the shorter leg.a (Stiffeners)It is the clear distance between member stiffeners. It is used for the shear check.