Need some help understanding mass modeling for modal analysis in Staadpro
I am dealing with a steel frame that supports a piece of equipment (crusher). This crusher moves in the X & Y axis while operating. The manufacturer has given me equivalent "static" loads to use...
View ArticleRE: Built-up members parameters
I looked up the revision history and found updates made to the design of built up sections. Moreover there has been updates to the design dlls for the AISC 360-05 code since 20.07.09.31. So I would...
View ArticleRE: Error in New Version SS6
thank you sir once again. Now its clear about bending check. Q.1) But what about combined check according to 9.3.2.2 eqn My is max factored applied ben moment so i think it should be -45.491 not...
View ArticleServiciablity check according EN 1993
Is it also implemented the feature described in the following post for EN1993?communities.bentley.com/.../28290.serviceability-check-in-design-according-to-is800-2007
View ArticleRE: StaadPro_Foundations stability checks
If you analyze the model with load that has both the lateral and gravity load involved, then after performing the analysis, if Staad reports instability warning message then it indicates that the...
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StaadPro_Foundations stability checks
HiI've modeled a multiple foundation in StaaPro by Plate Mat Foundation Supports in order to check max base pressure is minor than bearing capacity of the soil.I'm wondering about if I could also...
View ArticleRE: specifying staad support stiffnesses
Can you please elaborate your point? What exactly is your point? What do you mean by" What are the general formula to calculate the stiffnesses for various beams as demanded by Staad input"?
View ArticleRE: specifying staad support stiffnesses
how do you calculate axial adn rotational stiffness to input into staad? please give a sample calculations.
View ArticleRE: specifying staad support stiffnesses
Axial stiffness is determined by the term "EA/L" and rotational stiffness is determined by the term "GJ/L" where E is the elastic modulus , A is the cross sectional area , G is the shear modulus and J...
View ArticleRE: specifying staad support stiffnesses
i was referrin to calculating axial and rotational stiffness for a support. please provide any example where you have calculated the support stiffness and applied this in the model. many thanks.
View ArticleRE: specifying staad support stiffnesses
In general, you need to first determine how much the support is vertical displacement due to the unit axial load , from there you can easily determine the axial stiffness. Similarly you can determine...
View Articlespecifying staad support stiffnesses
Hi I have a question about calculating the support stiffness both axial and rotational.What are the general formula to calculate the stiffnesses for various beams as demanded by Staad input. Please...
View ArticleRE: STAAD Foundation Advanced: Machine Foundation Wizard
SFA can export model in .xml file. This xml file may be used in other program.
View ArticleSTAAD Foundation Advanced: Machine Foundation Wizard
Hello.I am a Grad student and I need to design a foundation for a centrifugal and reciprocating machine. I have generated a model for each using the machine wizard of STAAD Foundation Advanced. When I...
View ArticleRE: Error at Joint probable cause Negative diagonal
The connectivity was lost at the plate member interface. You can use the parametric modelling feature to mesh the plate retaining proper connectivity with surrounding entities.Click on the modified...
View ArticleError at Joint probable cause Negative diagonal
Good day all.I'm having trouble proceeding with my analysis of a particular structure. STAAD keeps giving me this error.***ERROR - AT JOINT 34 DIRECTION = MY PROBABLE CAUSE NEGATIVE DIAGONAL =>LDLT...
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RE: Warning: Load Beyond Its Length, Full Length Assumed
Please have a look into the following loading. You can see that d1 parameter has been set as 480 m. You need to change that.
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RE: Unique Condition at EOS Modeling Advice
Thank you for sharing the model. In response to your previous 3 questions:1. When the slab edge is extended to the outside face of wall, there is more space to develop the bar. This results in a...
View ArticleRE: Unique Condition at EOS Modeling Advice
Thank you for the quick response. I figured my first question had something to do with the development of the user reinforcement. I am using version 06.00.01.006.
View ArticleRE: Allowable Bending Stresses for Non-Compact Web Sections per AISC 9th edition
Thanks Sye, please keep me posted
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