Yeah mostly the snaps. I recently upgraded from a 19" square monitor to a 24" wide screen.
How would one go about changing the registry as you said? Thanks
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RE: RAM CONCEPT - Toolbar Question
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RAM CONCEPT - Toolbar Question
Is there any way to "lock" a particular toolbar arrangement, so that each new time you open the program it remembers previously how you had your toolbars setup on the interface?
Thanks
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Adding member properties in section database
I added angle bar properties and I run...and then the error message is:
Table name 200x90x9 does not exist
Error- in reading member properties. Check data format carefully.
Any one knows how to fix this error..
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RE: How to model a "Simply Supported Beam" in RAM Concept?
One step would be to uncheck the "fixed column far" and "fixed column near", so as to make the column fully pinned and to stop the beam bleeding moment into them.
A perpendicular beam system should behave similar to what you expect in real life, as the beam is a one way element. Have you had a look at the bending moments in both the X and Y directions to confirm this?
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How to model a "Simply Supported Beam" in RAM Concept?
How do I model a "Simply Supported Beam" in RAM Concept? If the beam frames into a column, or another beam, how do I "release", so to speak, the ends so that the moment is zero at those location? Is that even possible in FEA?
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RE: RAM Concept's "K Factors"
From what I understand in RAM Concept language...
R axis = X axis
S axis = Y axis
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RAM Concept's "K Factors"
I need a little help understanding a the stiffness factors in RAM Concept. Is "KMr" the same as the "Strong-axis stiffness"?? Why doesn't the RAM Concept Manual give a graphic representation or a numerical explanation of these factors? Please help. Thanks in advance.
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RE: Plate creating problem using in-fill option
"Create Infill Plates" is intended for models where you want to create plate elements in regions within members when such regions are in the horizontal plane such as a slab, or in the vertical plane as in the case of walls.
For models such as yours, which is a pipe in the horizontal plane, the regions which have to be filled with plates are at an inclination to the global planes, and the program is failing to create some of them probably because it is unable to establish that the four corners of an element lie in a single plane.
Instead, you could create the members and elements using the following steps.
Step 1 : Create the elements by doing the following
Go to the Geometry menu on top of the screen
Chose Run Structure Wizard
Choose Surface/Plate Models
Select the Type called Cylindrical Surface
In the dialog box that comes up, pay close attention to the input boxes for the Category called Axis. Here, you should specify the X,Y and Z coordinates of two points - Start and End, for a line representing the longitudinal axis of the cylinder. For the model that you are trying to create, that axis will be parallel to the global x axis.
After generating the elements, transfer the model to the main drawing area.
Step 2. Create the line members by doing the following
At one end of the pipe, add line members along the circumference connecting the nodes. Those members will hence form a ring.
Use the Translational Repeat option (of the Geometry menu) along the global X to make as many copies of these members so that the ring will be duplicated at specific distances apart. The X increment will determine where they are created.
Note : It appears that the ring members are meant to represent circumferential stiffeners. If that is not the case, and if your sole intention is to model the pipe using plate elements, step 2 does not have to be done.
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RE: STAAD - INTERNAL ERROR IN K-MATRIX
Attached is a modified version of your model in which
a) the FIXED and FIXED BUT type of supports are replaced with the ENFORCED and ENFORCED BUT types.
b) The PINNED type of support is replaced with ENFORCED BUT MX MY MZ
With this change, the model runs on my computer with the basic analysis engine.
Also, there are a couple of discrepancies in your model (which I haven't corrected).
1) In your load case 8, the load command reads
YRANGE 516 522 FLOAD -0.450142 GY
YRANGE 516 522 FLOAD -0.165052 GY
The highest Y coordinate in your model is 345 inches for nodes such as 220, 221, 222, 223, etc. There is no floor located within the YRANGEs of 516 to 522. Thus, no load is generated from those 2 commands. Similar errors are present in load cases 11, 12, 13 and 14 too.
2) The list for the CHECK CODE command includes 117 TO 124 all of which are plate elements, not line members. They need to be removed from the list.
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RE: Major Error in RAM Connection 9.1
Response from Support:
Yes, I agree that the program should be asking for the number of bars to be used in the check. I have asked the development team to revisit the implementation of this check on your behalf. Your work around is the best you will be able to do as implemented currently.
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Major Error in RAM Connection 9.1
While I appreciate the effort to allow an ACI Appendix D override in RAM Connection 9.1, it should either perform a complete calculation, or simply turn off the check altogether. When the option to provide primary shear reinforcing is selected, no option is given to select a number of ties, only a rebar size (i.e. #4 bar, grade 60). This leads to implausable results that are worse than ignoring the reinforcing. Please issue a patch either turning the check off when reinforcing is selected, or giving the user the option to choose a specific number of bars.
The only work around I can think of would be to put in a bar grade that is a multiple of the number of bars provided. If you have 12 ties w/ 2 legs each, the grade would be 12*2*60ksi=1440ksi
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RE: RAM Concept's "K Factors"
Slight clarification; the direction of the slab objects is defined by the user with the R axis. The default of 0 degrees for the R axis corresponds to the positive global X axis, but slab objects can be rotated (counter-clockwise) in plan.
KMr is a stiffness variable for moments about the R axis. Section 17.20 Slab area properties explains best.
Note, throughout he program we use R and S when referring to the local axis of an object (slab, beam, wall, column) and X and Y for reference to the global axis.
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RE: RAM CONCEPT - Toolbar Question
Thanks, my comment about the registry was for what me might do programmatically in the future, not something you can manually do now.
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hole creation in plate using parametric model
i am trying to use the parametric model tab for doing the hole in my plate ,
it is creating the circular hole in the parametric tab, but when i merge the mesh and come to the basic model
it is not reflecting in the plate.
please let me know how to do it?
thanks
senthil
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ACI Column Design Query
Dear Friends,
I have a query regarding Reinforced concrete design in STAAD pro V8i - SS4.
As per the design module, why is there no 'Ly' and 'Lz' parameters input?
Is it that STAAD design only short columns?
I am performing P-Delta analysis in STAAD for column design hence 'K' is not required as such. But the unsupported length has to be provided to get the correct values of 'phi-Pn' and phi-Mn', the capacities.
Experts kindly help.
Thank you.
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RE: DEFINITION OF "TD" AND "TB" IN GENERAL TAB @ CREATE USER PROVIDED TABLE
but the number its direct that thickness or is there a formula or equation to obtain that TB and TD
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DEFINITION OF "TD" AND "TB" IN GENERAL TAB @ CREATE USER PROVIDED TABLE
CAN ANYONE DEFINE WHAT IS "TD" AND "TB" WHEN DEFINING A GENERAL SECTION AS DEFINED USING THE DEFINE PROFILE POLYGON UNDER CREATE USER PROVIDED TABLE>GENERAL TAB.???
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RE: How to model a "Simply Supported Beam" in RAM Concept?
If the support is placed at the free edge of the beam (or slab), then pinning the support will get you what you want, but the slab and beams in Ram Concept are always continuous, so you are bound to get moments at interior supports even where the columns are pinned. Some users will apply a sliver of slab with modified behavior to achieve a weak zone and approximate a hinge, but I don't recommend this for most users since modified behavior is kind of complicated and isn't very realistic for most structures in my opinion.
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RE: Please help to explain why adding a node on a beam shows different result when analysed.
Hello, the original beams passed in my computer, can you tell me what error is in your computer, and which version of STAAD are you using?
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RE: Please help to explain why adding a node on a beam shows different result when analysed.
When you are inserting a node at the middle of the beam, the beam length in the design gets reduced by a half, so when a node is inserted, the beam segment length used in the calculation of the equivalent uniform moment factors m is reduced from 4.53 meters to 2.265 meters. That is why the utilization ratios are different.
In order to get close utilization ratios, you need to use the design parameters like Mlt, Mx, My, Mxy, UNL in the model with the middle nodes inserted and define the beam length as 4.53 meters to these beams using these design parameters.
In other words, you need to make sure that effective length of the beam would be the same for both models by using the mentioned design parameters. By default, the effective length in STAAD.Pro is equal to the actual length of the member defined by to adjacent nodes.
You can find more information about these design parameters in the chapter 2B.6 Design Parameters of the International Design Codes manual which can be found in STAAD.Pro Help.
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