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Robot Structural Analysis IdeaStation

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Please Robot developers, add composite design according to EC4 and other norms worldwide.....

 

Regards!


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Hello,

 

AFAIK, it is actually impossible to generate wind load for complex 3D structure according to Eurocode in RSA. I can imagine how difficult this task is for the implementation. However, personally I think the following idea could be facilitate the task. Imagine we have to generate the wind load for a structure on the cladding faces (wall, roof):

 

1.PNG

 - We choice a cladding

2.PNG

 

 

- We enter the wind pressure (q) and precise to RSA the nature of the cladding (wall or roof, height, length, etc), the wind load case (wind direction, internal pressure, etc) and RSA should automatically generate the wind load on this cladding (by dividing the cladding in several zone A, B, C etc according to Eurocode).

 

Although we have to do this task for each cladding, it should reduce a lot of manual works...

 


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Morning All,

 

I am sure you have been asked this many time but I figure the more we ask, the more likely it is to happen!

 

We have been using Robot for about 6 months now and are impressed with its analysis and design capabilities albeit the user interface leave a fair bit to be desired.  That said, we would prioritise program functionality over user friendliness any day!

 

All said an done, there are a few features that seem to be available in when European settings are used but are not available when using Australian settings.  Note that we still are not 100% across everything that robot does and does not do to Australian Standards but as of now, we noted that it does not support the following:

 

  • Wind load generation to AS 1170.2
  • Steel connection design to AS 4100.  We also notice that certain buckling parameter calculations that have an automatic mode available to them when using the BS EN 1993 settings are not available in the AS 4100 setting along with other lesser used features such as we bearing, buckling and stiffener design.
  • Foundation design to AS 3600
  • Geotechnical design although the Australian Standards are in general particularly poor in this regard.  For example there is no direct equivalent to BS 8004/BS-EN 1997 and AS 3600 also does not explicitly cover geotechnical structures in a similar manner to BS 8110.  The only Australian Standards that I am aware of that cover foundations are AS 2870 which is for residential rafts and footings and mostly covers how to deal with footing design for lightweight structures constructed on reactive clay sites and AS 2159 which is for piles and tells you little more than the pile capacity needs to be greater than the applied loads but provide no methods to actually calculate the pile capacity.

As of now, we simply use the Eurocode settings for these elements and do a proving calculation using either manual methods or other programs (e.g. Tekla TEDDS) just to satisfy building regulation requirements.  However, as with anything, this is an extra time and cost for us so it would be really great if we could do the whole lot in Robot as we like everyone else in the industry would love a proper, fully integrated BIM analysis/design/document system and every time we need to divert onto a tangent from that workflow takes from the efficiency of this process.


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Panel cut table

by vikasv on 06/21/2018 4:27 AM

Hi,

 

I know this idea has been posted many times. I want to post it again to get your attention.

 

But please provide a table output for panel cuts.

 

For e.g I am working on this Job which needs upto 50 cuts to obtain reduced forces and moments for design.

 

I went out of my way to exactly name the cuts based on the names of the beams and slabs, but it just rearranges itself in a completely random order. 

 

Please consider this for you next version. 

 

Capture.PNG

 

Please please take this idea in.

 

It will really helpful, if after we make all the cuts manually and Robot can give us a table showing the reduced forces and moments for each cut in a tabular format. 

 

Regards,

Vikas 

 

 

 

 

 

 

 

 


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Si une erreur concernant l'emplacement de votre élément se trouve dans la note de calcul, pour une poutre, l'erreur pour moi était le symbole multiplié "*" que Robot ne prend pas en charge, en le remplaçant par "- "ma note de calcul apparaît;" 


1
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I do suggest to add more International codes such as UBC 97 and ASCE 02,05,10
For wind loads reference.
I do suggest also to add the function of calculation wind loads Automatically (Aside of wind loads simulation) same as in programs: SAP, ETABS and MIDAS GEN.

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Forme de pente

by ryan48AD94E on 05/31/2018 12:11 PM

Bonjour, il serait bien lors de la création d'une poutre nous puissions appliquer des formes de pentes au plancher. Que se soit pour les poutres rectangulaires ou les poutres en T.


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Il serait bien que Robot puisse afficher la surface de coffrage qu'il considère dans son calcul mais aussi la section d'acier et le volume de béton qu'il considère pour son calcul de densité (kg d'acier/m3).


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Material nonlinearity

by rm-rsa on 05/27/2018 2:59 PM

Hi,

please improve Robot with material nonlinearity (steel and concrete). Code demands are asking more and more ..... Material and geometrical nonlinearity will move Robot in front of other similar softwers.

Regards 


2
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Development Team

by tom.krok on 05/09/2018 1:37 PM

Spending a bit of time with RSA 2019, I think Autodesk trusties shall either sack development team or those responsible for the development team or both ;) 

This is not a joke. 


2
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Hi.....

 

What do you think if we can Sketch Reinforcement in design step in Robot alternative to place rebar from pop-up window

 

i think it will be very nice idea


2
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Hi...............

 

What about the Robot reading of the shape of imported elements  as it is From the Revit?

 

Like Model in place elements : and Read analytical line as the element had drawn

 

This will make structural analysis on the robot more easier


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Simple as that - there is DIN 18800 included in RSA and very old ENV-1993-1 NAD Germany, but there is lack of DIN-EN 1993-1 code for steel. I know that RSA is not very popular in Germany, but there is a lot of companies all around the world making design for German companies and they cannot do that with the newest EC3.


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Local axis

by rana.moumnehlau on 03/27/2018 5:34 PM

I am having trouble choosing the correct local axis for my 3D structure( walls and slabs).

Please can you guide me how to choose my local axis for the walls and slabs


5
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its a nice object if there have a template for mat foundations  as it have for RC elements  

 

as its have in Safe program 

 

 

mat foundation.PNG

 

 

 


5
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 a cool thing in robot is taking sections for beams and columns and sending them to Autocad , 

it will be good if it was available for other elements  specially for RC elements  , 

and also the detailing of sections also include the number and property of reinforcements  on sections itself !

 

 

cool.PNG

 

 

 


3
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Non-linear thermal effects e.g. perpendicular to the beam/shell could save a lot of time and hustle. 


3
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hi dear developers 

 

why the robot program have not visible drop panel for slabs ? its a big thing if it have it in new version 

 

40101_Untitled-1.jpg


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4K monitor compatible

by tom.krok on 03/21/2018 2:13 PM

It needs an urgent update for 4K monitors; small icons or small rows are hard to read.


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An initial bow imperfection for curved members (a chain of straight segments along a faceted curve).

When designing bridges made out of two trusses linked by a deck with rigid joints at the bottom and unrestrained laterally at the top requires a buckling check of the top chords (effective length). There are two options how to do it:

1) initial imperfection as a buckling mode deformation + P-Delta to amplify the effect - there is a problem with a meshed floor as it takes ages to find a mode relevant to top chords, meshed deck to flimsy;

2) initial imperfection as a geometrical bow + P-Delta to amplify the effect (e.g. as per EC3 already in Robot but only for straight members)

 

For option one, as it is at the moment I have spent so much time analyzing 500-1000 modes to find the right one. If there was a feature to skip modes for shells or if there was a chance to bring buckling mode from a different phase (a model without the deck shell and buckling developed for SW+Dead), then life would be easier.

Also, Hollow Sections joints design taking into account out of plane moment. 

With those feature described above, RSA is sufficient to design any steel U-Frame bridge (in the UK) out of the box.  

 

11
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Hi 

 

I would like to see better interoperability between Revit & Robot. That would be a major selling point for a BIM platform. The ability to transfer between the 2 platforms id great, but more often then not there is a lot of work required to make the design model ready for analysis.

 

Analytical columns/beams that "are slightly off axis" when the Revit model is correct is a major issue. Why is it even possible for these elements have an analytical line that can vary from the element itself? 

 

If this transition is done seamlessly and worked like it should, it would make Robot the number 1 design software in the market solely based on the success of Revit. There really is no time in the modern market to model a structure twice!


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Hi, it is unacceptable that this option is not available yet. It is a very basic function that all other software have.


24
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The first idea, add "Reinforcement calculator" to "Tool> below "Calculator"

 

The second idea, add "Reinforcement calculator" to "Slab - required reinforcement" tab "Scale". As result in the right bottom corner of the screen, we will see not only sm2/m as it works now but also the description. 

For example, now we see 7.92

                                       17.97 

                                      24.25 (sm2/m)

After  this idea will be implemented we will see the result with descriptions           

                               7*d 12 = 7.92 

              7*d 12 + 5* d 16 = 17.97 

7*d 12 + 5*d 16 + 8*d 10 = 24.25 

 

http://help.autodesk.com/view/RSAPRO/2017/ENU/?guid=GUID-F07C9C5F-075C-4FB0-89D5-D942A4E641BB

ATTACHMENTS
RSA_idea_1.jpg

6
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I recommend fixing this issue, 

When a 2P Linear load is applied on a slab and then copy or replicate the whole story or the slab, the load isn't copied (not assigned on the new slab).

That may cause problems if you didn't pay attention to that.

I hope that will be fixed in the upcoming versions (if there will be).

Thanks 


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Hi,

 

Is it possible to combine a particular case with the envelope to yield maximum/minimum results.

This would save time from creating more combinations.

 

Thanks

Husmat


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I recommend you to fix the values of the Egyptian reinforcing bars (ECCS_203_2001) to be like that pic.

 

 

We usually correct it manually from it's .Xml file it's not working to change values from the program.

The mild steel yield stress we use = 2.4 E+08

and 

The high tensile steel yield stress = 3.6 E+08

ECCS_203_2001.png


15
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Hi.

I see someone had posted this in 2016 and I would like to support this request. We do calculations on drilling structure in accordance with the API Spec 4F (API = American Petroleum Institute). API released an addendum suggesting that connections using tubular sections shall be checked against the requirements of AISC360-10.

Doing this manually is just not realistic. considering the multiple beam and load cases.

I tried migrating a model from Robot to Revit - it doens't work.

So our only choice at the moment is doing it manually or subscribing to other software. Since you already have plenty of EN connection code in Robot, why not implementing AISC? (since you also already have AISC 360-05 + 360-10 steel members code checks)...

Your earliest response will be much appreciatedas we're currently looking at solution in that regard

thanks in advance

Stephane Niemczyk

 


4
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If a country regulation is not in RSA then you can not define a seismic analysis. So you need to define a spectral analysis but in the dialog box for this analysis there isn't an option for introduce the eccentricities. This option need really to be implemented in the new version.

 

Best regards,

 

Cesar


5
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One of the TOP VOTED themes is Brazilian Codes. 

My suggestion is to Autodesk pay a brazilian specialist to work for a short time with your Developer Team to write all the codes necessary to use RSA in Brasil.

Don´t think that any Engineer will work with one software to model and other to calculate. They will invest in only one software.


8
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When i import an AutoCAD file in RSA, some times it gives error and the program crashes and closes.

I then realized that i should delete all hatch pieces and other regions and text ,..... etc keeping only line and polyline objects.

I wish that error can be fixed in the upcoming version.

Another thing,

All arcs drawn in AutoCAD is converted into lines when i import the file in RSA.

I wish this also will be repaired to get full view of the arc as it is drawn in AutoCAD.