Namit Sharma's Communities Activities

WT/Angle Section connection eccentricity

Namit Sharma — Thu, 28 Feb 2019 10:10:51 GMT

Is there any way to simulate the eccentricity due to connection of angle/WT section with gusset in STAAD?

Or do we need to perform additional check for member design due to this eccentricity manually?

Retrieving assigned steel design parameter via OpenSTAAD

Namit Sharma — Sun, 17 Mar 2019 06:08:31 GMT

Similar to the "Command.CreateSteelDesignCommand", is it possible to retrieve assigned steel design parameter information for beams?

In particular, I am interested in material grade data (fyld and fu) assigned to members for design.

OpenSTAAD (Time required for data extraction)

Namit Sharma — Sun, 10 Feb 2019 16:01:57 GMT

While using OpenSTAAD, I have noticed a significant reduction in the time required for data extraction (whether it is member end forces or geometry data) when a dialog box (such as autosave dialog) is open in STAAD GUI. Can I use this anomaly to my advantage (by opening a dialog by ctrl+s before running an OpenSTAAD command in VBA) to reduce the time of data extraction or could there be issues in the data extracted in this manner?

We are using version 20.07.11.45.

Please advise.

Incorrect slenderness ratio for angle section

Namit Sharma — Tue, 05 Feb 2019 13:41:20 GMT

While designing the member using CAN/CSA S16-14 code. The slenderness ratio (KLR) parameter appears to be calculated incorrectly by STAAD. (refer attached snap)

The hand-calculated value comes out to be 1483/20.2 = 73.41 while STAAD reports 107.133. Consequently, the compression capacity appears to be underestimated by STAAD.

I am using version 20.07.11.45. Is this a bug?

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Partial Releases through OpenSTAAD

Namit Sharma — Thu, 19 Jul 2018 05:41:59 GMT

Like the "CreateMemberPartialRelease" OpenSTAAD function, there doesn't appear to be a "GetMemberPartialRelease" function.

Is there a way to retrieve member partial release information (such as Mp=0.1 assigned to start of the beam) through OpenSTAAD?

If there is then please share.

Use of fy and fu of steel parameters in material constant

Namit Sharma — Fri, 30 Jun 2017 08:33:35 GMT

What is the purpose of defining fy and fu parameters for steel in material constants as they are not required during analysis?

Slz and sly parameters in STAAD per ACI 318-11

Namit Sharma — Fri, 21 Apr 2017 08:23:58 GMT

What is the correct procedure to include sway effects using slz and sly parameters in STAAD as per ACI 318-11 code. Should this parameter be used to assign the factored load combination giving maximum deflection? What other parameters need to be considered to properly account for sway and column slenderness effects, please share.
Also, sky and skz parameters are limited to an upper value of 2. If my column has a node in between and I want STAAD to consider double the element length along with an effective length factor of 1.5, then I would assign a factor of 3 to such element but I am not able to do so because of the upper limit of 2 for this parameter. Please suggest a work around.

OpenSTAAD and matlab

Namit Sharma — Sat, 03 Oct 2015 04:49:29 GMT

Is it possible to access openstaad functions via matlab?

After opening the STAAD manually, I am running matlab script file with following commands to instantiate the openstaad object but I am not able to access any functions of this class:

staad1=actxGetRunningServer('STAADpro.OpenSTAAD');
staad1.Quit;

The first line successfully creates the openstaad object(which I can see in the MATLAB workspace) but the second line gives the following error:

No appropriate method, property, or field 'Quit' for class 'COM.STAADpro_OpenSTAAD'.

This error is obtained for all commands of the format:

staad1.<function name>

Kindly help me on this.