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PROBABLE CAUSE NEGATIVE DIAGONAL =>LDLT MTX K-MATRIX DIAG= 1.9758210E-01...
Dear all,I have modelled a 3D canopy structure with solid elements which will be acting as the fabric. I am having issues running the model as it is coming up with issues as shown in the subject.The...
View ArticleGroups
Hello,I have a model whith some beams/shell/geometry/floor groups definedCan I list for beam or element all the groups that belongs ?Thanks in advanced
View Articlewind loads on walls with varying heights in ram
I'm modeling a structure in Ram that has a single pitched roof. This roof also has a parapet on top that is 2.5 feet high. Because of the pitched roof and the size of the structure (130'x160') there...
View ArticleHow to model a corrugated steel plate
I have to model a corrugated steel plate. I would like to use plate or surface elements. How can I do it?It is possible to change the stiffness parameters of the plate or surfaces elements?Thank...
View ArticleHow to analyse and design in Staad pro. for other the countries whose codes...
hello,How to use Staad for the countries like Peru?please help
View ArticleResponse Spectrum Analysis on Large Model (STAAD)
I'm running a response spectrum analysis on a fairly large model (11,000 nodes) in STAAD (SELECT Series 6 v20.07.11.50) and combining the modal results using the CQC method. Due to the size of the...
View ArticleSTEEL STRUCTURE DESIGNIN
I dont know which value is suitable for DMAX DMIN CB etc parameters for my steel structure design using code BS5950 1/2000.. and also tell me which parameters i should select for steel structures..
View Articlestaad.pro problem - *** ERROR *** ABOVE LINE CONTAINS ERRONEOUS DATA
Hi, I have a problem with analyzing my structure in staad.pro, which says "*** ERROR *** ABOVE LINE CONTAINS ERRONEOUS DATA."Attachment is below - I will be grateful if someone could have a solution...
View ArticleInfluence area in STAAD Pro using shell elements
Hellowe are modelling a basement using shell elements. STAAD (SS-5) output shows a warning that at Node 834, the influence area is 586sqm. We could not find any issue with modelling. then what caused...
View ArticleNo errors and warnings, but can not get results (staad.pro)
Hi,I Found a problem with getting results after running analysis, in other words post processing option isn't available.Attachment of problem is below - Thanks in advance.(Please visit the site to view...
View ArticleSingle angle design for compression in STAAD.Pro appears incorrect
I have a L80607 truss member that fails by a ratio of 1.36 under a compression force of 33.0 kips, using the AISC 360-10 ASD code. The KL/R ratio listed in the output is 148.9, which for A36 steel...
View ArticleSmart Change Management between STAAD Pro model and Foundation design mode
I have created and run the analysis of a simple one story concrete frame in STAAD Pro. The analysis ran and produced output with no errors. I went directly from the STAAD Pro Post Processing mode to...
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Applying wind loads on a cylindrical structure with plate elements.
Hello,I'm modeling a steel furnace structure using the plate elements as shown in the attached picture. I have the wind loads data according to the country standard(height vs. intensity data) that...
View ArticleTRIANGULAR FACTORIZATION
Please help me how to speed up the triangular factorization of my model. The size of model is 1.4MB with 21862 nodes, 26443 elements and 23000 lines. The triangular factorization for load case 1 alone...
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ERROR: NOT ALL JOINTS SPECIFIED IN ABOVE SURFACE INCIDENCES ARE COPLANAR
Hi all,I am modelling a hypar structure in tension. I have generated a surface mesh to divide the structure into 200 triangular plates (in order for them to be coplanar).Should I apply loads...
View Articlei want to become staad pro expert
Salam, hope u will be good .. sir basically i,m mechanical engineer but i want to become a efficient designer of steel structures .. what i have to do for that purpose plz guide me which book i should...
View ArticleRivet Theory for Pile cap Design
HiThe documentation of staad foundation suggests that two pile caps are designed according to rivet theory. Where can I find documentation or literature about what rivet theory is. In the days prior to...
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Staad Pro analysis of moment connection
Hi all,I have a steel frame with moment connections and pinned connections. At the top of one column (which is a moment connection) I have three beams with the following forces and moments (for...
View Articleram beam only designing unfactored
I thought I had everything done and when I was looking through my reports/beamdesign/all report. All the values being shown are non-factored. By using the AISC 360-10LRFD I thought it would then use...
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