Known Issues
The following outlines known issues with the current version ofSTAAD.Pro and suggested workarounds where possible:
| ID | Publishing Notes | WorkAround |
|---|---|---|
| 1271381 | Known Issue - Physical members defined with multiple segmental (analytical) parts, and designed to the Australian design code AS 4100-1998 can fail to correctly evaluate the factor alpha_m when PBRACE parameter has not been assigned. The issue relates to determining the moment profile and values at quarter points of the physical member. | Assign a value of ALM (the value of αm) rather than allowing the program to determine it using the moment profile. |
| 1260746 | Known Issue - The routine that creates wind loads on enclosed structures attempts to create loading on partially covered panels. This method is not robust and can result in some unintentional partially loaded panels. | Constrain the loading to an XRANGE or ZRANGE (YRANGE if using Z as vertical), that only includes the members that should be loaded from the wind load definition. |
| 1225391 | Known Issue - The algorithm used by the wind loading routine in determining wind panels when provided a defined group can incorrectly define panels when encountering members that form braces across the wind panel. | Where braced members cross the face of wind panels, the loading should be defined explicitly using the appropriate loads that should apply to the nodes. |
| 1221514 | Known Issue - The routine that creates wind panels can fail to determine the full extent of the bounded area where supports are defined in multiple locations in the panel. | No workaround available at this time. |
| 946144 | Known Issue - The steel design routines for IS 800:2007 LSD or WSD are designed for profiles where Z-Z is the major axis and Y-Y, hence IZ>IY. In profiles where this is not true such as tee profiles which have large flanges and small webs (but can occur on other profiles), then the design fails to account for the swapping of major and minor axes. | No workaround available at this time. |
| 807812 | The cold formed steel design routine used in the BS5950-pt 5 and CSA S136 that process the section properties doe not properly account for the geometry of US Cold formed Angle without lips, British cold formed Z with lips, Butler Zee Purlins, European CHS section and Russian cold formed pipe sections and should not be used with these profiles. | No workaround available at this time. |
| 807595 | The Canadian seismic loading routine NRC 2010 and NRC 2005 does not correctly process the parameters FA and FV, the optional site coefficient parameters for the short and long periods | If it is required to specify these, ie. SCLASS is set to F, then an alternative seismic code should be used. |
| 635507 | On some computers running Windows 10 version 2004 (10.0.19041), after completing a session in the Steel AutoDrafter or Steel Connection Design Workflow and selecting a different workflow, STAAD.Pro can crash | No workaround available at this time. |
| 541629 | The Windows Account user name of the is currently required to be defined using standard ASCII alphanumeric characters. STAAD.Pro does not support user names which are defined with special or non alphanumeric ASCII characters. | Other than using an alternative computer, there is no workaround available at this time. |
| 532952 | When a model includes a supported node as a control node for control/dependency (previously master/slave), then this is not accounted for in the final statics check and thus can suggest that there is an imbalance from the analysis. | Confirm that the reported allied loading is consistent with the loading applied in the model. |
| 524650 | Assigning a lateral release on the end of a member or finite element, i.e. FX., PY or FZ, the reported intermediate displacements do not account for the separation of the degree of freedom and thus does not correctly display the member displacement. | Use two nodes defined at the same location and connect together with a suitable Control/dependant (previously MASTER/SLAVE) specification. |
| 488517 | The User Report currently does not include the following data Definitions (Load Generators) 1) Snow Load 2) Seismic - Floor weights, reference loads, element weights 3) Pushover definitions 4) Direct Analysis definitions 5) Time History Definition Spectrum, missing mass, cdamp/mdamp option? Loading data 1) Seismic load 2) PMember loading is combined into a general member load 3) Floor Load 4) Snow Load assignment 5) Response Spectra Assignment for code based methods 6) Temperature load - lateral 7) Time History assignment factor and rel/abs | Details of the static seismic load generators should be obtained from a printout of the input file or output file. |
| 488487 | There are currently a number of undocumented OpenSTAAD functions for accessing User Table details in the STAAD model that are displayed when browsing the OpenSTAAD functions. | These are incomplete and should not be used at this time. |
| 488480 | The ISM interoperability does not import/export the coefficient of thermal expansion (alpha) in the correct units. | The details of materials imported from an ISM repository should be checked that the correct unit has been used with the alpha coefficient. |
| 488399 | The Member Query dialog box does not display the forces correctly for load cases analysed with a non linear analysis such as Direct Analysis, P-Delta and GNL where secondary effects need to be considered in establishing the changes of force along the member length. | The member results should be obtained from the Post Processing mode, Beam>Graphs page. |
| 488340 | Mass participation reported for response spectrum loading using SP 14:13300.2011 and SNiP II-7-81 can result in a greater magnitude than that included in the model when RIGID FLOOR DIAPHRAGMS are included. | Avoid the use of RIGID FLOOR DIAPHRAGMS in a model that used the SNiP or SP 14.13330.2011 response spectrum load cases. |
| 488029 | The wind loading routine does not account for beta angles on angle profiles | These members should be loaded using a manual method. |
| 487753 | The use of temperature loading with a geometric non-linear analysis is not supported. | The temperature effects should be replaced with an alternative member or plate load to represent the thermal effect |
| 487697 | For models which have closely modes, a dynamic analysis can produce differences in the individual modal mass participation on some workstations some newer Intel Xeon platform processors. However, the observed variations of the principal analysis results is typically minor. | No workaround at this time |
| 487652 | The cross section capacity check performed in the Indian steel design of slender wide flange sections uses the full section profile. There are pending clarification to determine if this or a reduced section profile should be used when under combined bending and shear. | Manual checks should be performed where a wide flange profile is both slender and subject to both bending and shear. |
| 487636 | The option to set the direction of ONEWAY FLOOR load using the parameter TOWARD a given member occasionally fails to direct the load in panels where a beam on a longer edge of the perimeter of the enclosed boundary is shorted than the shorter edge. | If the direction of loading is not displayed as expected, select an alternative member in the floor set. For floors groups defined that encompass multiple enclosed areas, try breaking these into separate floor groups and applying the floor load to each one individually. |
Latest Known Issues
Additional issues that are discovered after the program has been formally released will be posted online in the BE Communities website STAAD.Pro Known Issues in the TechNotes and FAQs section.