List of critical and high severity defects identified in STAAD.Pro V22 build 22.05.00.131 / 22.05.00.148
| Issue ID | Title | Severity | 1st affected Build | Fixed in Build |
| A-487590 | Nonlinear Analysis - plate results reported as zero for model with multiple load cases | 2 - High | 22.01.00.39 | 22.06.00.138 |
| A-487670 | Incorrect base shear being generated as per Equivalent Lateral Force Method using IBC 2018 | 2 - High | 22.02.00.26 | 22.10.00.153 |
| A-487690 | Incorrect design results for square tapered section using AISC 360 16 | 2 - High | 22.03.00.28 | 22.07.00.160 |
| A-487732 | Incorrect Warping Constant used during selection of wide flange profiles as per AISC 360-16 | 2 - High | 21.00.02.44 | 22.07.00.160 |
| A-487738 | Incorrect design as per AS4100 for a braced physical member having analytical node at any quarter point along its length | 2 - High | 21.00.02.44 | 22.06.00.138 |
| A-487742 | Error in torsion design for beams per ACI 318-2011 | 2 - High | 20.07.11.50 | 22.06.00.138 |
| A-505266 | Incorrect Warping Constant used during selection of wide flange profiles as per CAN/CSA-S16-14 or CAN/CSA-S16-09 | 2 - High | 21.00.02.30 | 22.06.00.138 |
| A-506489 | Incorrect Warping Constant used during selection of wide flange profiles as per IS 800 2007 (LSD/ WSD) | 2 - High | 21.00.02.30 | 22.06.00.138 |
| A-507231 | Incorrect Warping Constant used during selection of Hat section as per AISI 2016 | 2 - High | 22.04.00.40 | 22.07.00.160 |
| A-511125 | Incorrect Warping Constant used during selection of Channel profiles as per EN 1993-1-1 2005 or BS EN 1993-1-1 2005 | 2 - High | 20.07.11.70 | 22.07.00.160 |
| A-515693 | Member assigned with MEMBER TENSION and subjected to axial tension - is designed as a compression member with NZS3404-1997 code | 2 - High | 21.00.00.57 | 22.06.00.138 |
| A-524650 | Member section displacement results do not account for lateral releases on members | 2 - High | 20.07.04.12 | Known Issue |
| A-530329 | Flexural capacity for local buckling about minor axis is incorrectly evaluated for Channel and Channel with lips sections as per AISI 2016 | 2 - High | 22.04.00.40 | 22.06.00.138 |
| A-532805 | Lateral torsional buckling capacity about major axis is incorrectly evaluated for Channel section as per AISI 2016 | 2 - High | 22.04.00.40 | 22.06.00.138 |
| A-533716 | The horizontal seismic influence coefficient (ALPHA) is incorrect for period from 0.1s to Tg as per GB50011-2001 | 2 - High | 20.07.06.23 | 22.06.00.138 |
| A-545710 | Section Modulus of angles designed to AISI 2016 | 2 - High | 22.04.00.40 | 22.06.00.138 |
| A-547383 | IS801 compression capacity check for multiple properties | 2 - High | 22.01.00.39 | 22.06.00.138 |
| A-547591 | AISI 2016 design with LOAD LIST ALL | 2 - High | 22.04.00.40 | 22.06.00.138 |
| A-554981 | NZS 3404:1997 slenderness for tension members | 2 - High | 21.00.00.57 | 22.07.00.160 |
| A-561450 | IS 800 :2007 LSD Single Angle slenderness check | 2 - High | 22.05.00.131 | 22.07.00.160 |
| A-577472 | SP 16 2017/2011 : Tube design | 2 - High | 22.04.00.40 | 22.07.00.160 |
| A-633034 | NZS 3404-1997 : Clause 5.12.2 | 2 - High | 21.00.00.57 | 22.07.00.160 |
| A-669073 | AISC 360-16: Warping constant is used in the calculation of Euler Buckling Stress for T & 2L Sections | 2 - High | 21.00.02.44 | 22.08.00.175 |
| A-698135 | SANS 10162-1 : UNT and UNB parameters | 2 - High | 20.07.11.33 | 22.09.00.115 |
| A-710597 | EN 1993-1-1: 2005 : Utilization ratio as per Eq.6.62 for Slender Tee section | 2 - High | 20.07.07.19 | 22.08.00.175 |
| A-716046 | EN 1993-1-1: 2005 : Shift of neutral axis for Slender Tee section | 2 - High | 20.07.07.19 | 22.08.00.175 |
| A-774908 | AISC 360-16: Effect of eccentricity for single angle profiles | 2 - High | 22.02.00.26 | 22.09.00.115 |
| A-784278 | AISC N690 1984: Shear design for pipe sections | 2 - High | 20.07.06.23 | 22.09.00.115 |
| A-813848 | Unbraced length : UNF and UNL Parameters | 2 - High | 20.07.08.32 | 22.10.00.153 |
| A-817499 | EN 1993-1-1:2005 : LEG parameter for single angle profiles | 2 - High | 20.07.07.32 | 22.11.00.156 |
| A-852094 | AISC 360-16 : FY and FU not considered from assigned material | 2 - High | 21.00.02.44 | 22.10.00.180 |
| A-865805 | Incorrect ELFP Torsional Moment : Optional Load Factor Multiplication | 2 - High | 22.01.00.39 | 22.10.00.180 |
| A-865842 | AISC 341-16 : Incorrect Seismic Classification for Custom Steel | 2 - High | 22.01.00.39 | 22.10.00.180 |
| A-935629 | AISC 360-16: SGR parameter | 2 - High | 21.00.02.44 | 22.12.00.142 |
| A-969825 | AISC 360-10/05 : Combined flexure and tension | 2 - High | 20.07.11.50 | 22.12.00.142 |
| A-973697 | AS4100-1998 : Moment modification factor | 2 - High | 20.07.11.90 | 23.00.00.345 |
| A-1003677 | NZS-3404-1997 : Physical member design | 2 - High | 21.00.00.57 | 23.00.00.345 |
| A-1005695 | NZS-3404-1997 : Analytical Member Design | 2 - High | 21.00.00.57 | 23.00.00.345 |
| A-1015058 | AISI 2016 : Deflection checks | 2 - High | 22.04.00.40 | 23.00.00.345 |
| A-1032348 | AISC 360-16 and BS5950 Pt 1 : Incorrect shear capacity parallel to the flanges for Double Channel profiles | 2 - High | 21.00.02.30 | 23.00.00.345 |
| A-999611 | Incorrect Time History analysis results with a Harmonic Ground motion | 2 - High | 20.07.04.12 | 22.12.00.142 |
| A-996557 | IS800:1984: Properties determined by incorrect CG position | 2 - High | 22.05.00.131 | 23.00.00.345 |
| A-1073141 | IBC 2012/2015/2018: Failure to process negative accidental eccentricity factor in Response Spectrum Analysis | 1 - Critical | 20.07.11.33 | 23.00.00.345 |
| A-1121536 | EN 1993-1-1:2005 : Failure to perform Bending Check (Clause 6.2.5) and Buckling Check (Equations 6.3.3-661, 662) | 1 - Critical | 20.07.11.90 | 23.00.00.345 |
| A-1176400 | AISC 360-05/10: Slenderness of Single Angle | 2 - High | 20.07.11.50 | 23.00.02.361 |
| A-1199138 | AISC 360-16: Incorrect H2-1 at the Heel of an Equal Angle | 2 - High | 21.00.02.44 | 23.00.00.345 |
| A-1221514 | Wind Load Panel Formation affected by support nodes | 1 - Critical | 20.07.04.12 | 24.00.02.354 |
| A-1225794 | AS4100-1998 & NZS 3404 -1997: Reference buckling moment for wide flange profiles with unequal flanges | 2 - High | 20.07.11.90 | 23.00.02.361 |
| A-1232633 | CSA S16-09/14/19: Incorrect Evaluation of Factored Moment Resistance | 1 - Critical | 20.07.10.64 | 23.00.02.361 |
| A-1247472 | AS4100-1998 : Member moment capacity checks as per Clauses 8.4.2.2 and 8.4.4.1 | 2 - High | 20.07.11.90 | 23.00.02.361 |
| A-1271381 | AS4100-1998 : Physical member design | 2 - High | 20.07.09.31 | 24.00.00.577 |
| A-487774 | Inclined Joint load using ref Joint | 2 - High | 20.07.04.12 | 23.00.02.361 |
| A-487893 | Wind load on open structures are incorrectly evaluated on members with beta angles | 2 - High | 20.07.04.12 | 23.00.02.361 |
| A-1327542 | EN 1993-1-1:2005 : Cl 6.2.2.4 not implemented for I section with Class 3 web and Class 1 or 2 Flange | 2 - High | 20.07.10.41 | 23.00.02.361 |
| A-995133 | IS 800 2007 (LSD/WSD) : Section classification for Welded Section T Profile | 2 - High | 20.07.06.23 | 23.00.02.361 |
| A-1335471 | EN 1993-1-1-2005 : Incorrect warping constant values evaluated for Tube and Angle profiles | 2 - High | 20.07.10.41 | 24.00.00.577 |
| A-1352814 | Time History Analysis: Plate stresses ignore missing mass | 2 - High | 20.07.10.41 | 23.00.03.25 |
| A-1350894 | AISC 360-05/10/16: Incorrect slenderness for single angles | 1 - Critical | 20.07.04.12 | 23.00.03.25 |
| A-807595 | NRC 2005/2010: Incorrect assignment of FV parameter | 2 - High | 21.00.00.57 | 24.00.00.577 |
| A-1347586 | AS4100-1998: Incorrect Section slenderness (λe) | 1 - Critical | 20.07.07.19 | 24.00.00.577 |
| A-846868 | Incorrect design shear area | 2 - High | 20.07.04.12 | 22.12.00.142 |
| A-1419270 | AISC 341-16 : Web stiffener parameters | 2 - High | 21.00.02.30 | 24.00.00.577 |
| A-1392128 | Design code parameters conflicting with other codes | 2 - High | 20.07.10.41 | 24.00.00.577 |
| A-1373774 | NZS3404-1997: Angle profile slenderness limit (λey) | 1 - Critical | 21.00.00.57 | 24.00.00.577 |
| A-1427565 | Self-weight distribution for quadrilateral plates | 2 - High | 20.07.04.12 | 24.00.00.577 |
| A-1431170 | AIJ 2002/2005: Interaction Checks | 2 - High | 21.03.00.146 | 24.00.02.354 |
| A-1500567 | AISC 360-16: Incorrect H2-1 at the Heel of an Equal Angle | 1 - Critical | 21.00.02.44 | 24.00.02.354 |
| A-1482280 | AS4100-1998/2020: Shear capacity for circular profiles | 2 - High | 20.07.07.19 | 24.00.02.354 |
| A-1543790 | AISC 360 & CSA S16: Incorrect minor axis bending capacity for channel profiles | 1 - Critical | 20.07.08.22 | 24.00.02.354 |
| A-1547404 | AISC 360-05/10/16/22: Incorrect design wall thickness for HSS profiles | 1 - Critical | 20.07.04.12 | 24.00.02.354 |
| A-1548004 | AISC 360-16/22: Incorrect effective area for a slender round HSS profile | 1 - Critical | 21.00.01.12 | 24.00.02.354 |
| A-1559731 | AISC 360-16/22: Incorrect calculation of Cb for single angle profiles | 1 - Critical | 21.00.01.12 | 24.00.02.354 |
| A-807812 | Cold formed design: Russian cold formed pipe profiles | 2 - High | 20.07.04.12 | 24.00.02.354 |
| A-488029 | Incorrect wind loads on open structures for single angle profiles | 1 - Critical | 20.07.04.12 | 24.00.02.354 |
| A-937039 | Incorrect wind pressures on open structures | 1 - Critical | 20.07.04.12 | 24.00.02.354 |
| A-1100215 | Incorrect wind pressures on closed panels | 1 - Critical | 20.07.04.12 | 24.00.02.354 |
| A-1398892 | Inaccurate wind panel validation | 1 - Critical | 20.07.07.32 | 24.00.02.354 |
| A-1470822 | AISI-2016 and AS4600-2018 : Incorrect effective section properties | 1 - Critical | 22.04.00.40 | 24.00.02.354 |