RAM Structural System Help

Error Messages

The following error messages may appear during the design process as appropriate.

AISC 360 (ASD and LRFD)

SettingDescription
"KL/r>200" If the member slenderness exceeds 200 then no further design checks are performed.
"B1: Pr>Pe1" Euler buckling limit exceeded (refer to calculation of B1 in AISC 360 Design Manual), no further design checks are performed.

ASD 9th, LRFD 3rd

SettingDescription
"KL/r > 200" If the member slenderness exceeds 200 then no further design checks are performed.
"fa exceeds F'e" (ASD only) Euler buckling limit exceeded, no further design checks are performed.
"Pu exceeds Pe" (LRFD only) Euler buckling limit exceeded, no further design checks are performed.
"xx is Slender" where xx could be flange, web or section. No further design checks are performed.

CAN/CSA-S16-01/ S16-09 / S16-14

SettingDescription
"Klr>200" If the member slenderness exceeds 200 then no further design checks are performed.
"Cf>Ce" If the axial load exceeds the Euler buckling capacity of the section then no further design checks are performed.
"Class 4" If a section contains a slender element it will be indicated as a class 4 section and no additional design checks will be performed.
"Slender Web" If a section subject to shear has a web whose depth to thickness ratio exceeds the limit of 502 sqrt (kv/Fy) then no further design checks will be performed.

BS 5959

SettingDescription
"Le>180" If the member slenderness exceeds 180 then no further design checks are performed.
"F>Pcx" or "F>Pcy" If the axial load exceeds the capacity of the section then no further design checks are performed.
"Class 4" If a section contains a slender element it will be indicated as a class 4 section and no additional design checks will be performed.
"Slender Web" If a section subject to shear has a web whose depth to thickness ratio exceeds the code limit of 69ΞΎ then no further design checks will be performed.

AS 4100

SettingDescription
"N* > Nomx" or "N* > Nomy" Displayed when total axial load in the member exceeds the elastic critical buckling resistance for the member in the plane of bending. This has implications in the calculation of interaction values.
"DeltaBx > 1.4," "DeltaBy > 1.4" Displayed when the moment amplification factor exceeds the code specified limit 1.4.

IS 800-07

SettingDescription
"Slender" If a part of the cross section exceeds the slender section limits for flange or web.

All Steel Design Codes

SettingDescription
"Column brace configuration error: See Note" If a joint is not braced in at least one axis direction and it has more than two columns at the joint or just two columns but not aligned in line then RAM Steel Column cannot determine the unbraced length. Hence, it cannot design the affected columns in that column line.