WT1221's Activities

RAM CONNECTION Base Plate Warning - "High value moments detected in the axis perpendicular to the design axis"

WT1221 — Tue, 01 Aug 2017 15:53:16 GMT

Hello,

This warning is shown on the report, under the base plate design check. If I scroll up to the load combinations (see first image below), the Mu33 do seem relatively high. But this column is pinned at its base, and if I go to the loads on the connection pad (see second image below) the M3 moments are really small for those load combinations, which makes sense. So I'm not quite sure how Ram is coming up with these large moments? Is this an error? Thank you.

Base Plate - Column Offset

WT1221 — Mon, 19 Jun 2017 22:03:14 GMT

Hi, see below. Is there any way to offset the column in the direction perpendicular to the brace direction. It only gives me the option for a transversal offset (see what I highlighted in red), but I want a longitudinal offset (parallel to the column web or perpendicular to the brace direction). Only way I've found to do a longitudinal offset is by changing the column orientation to "longitudinal", but this will change to connection to a beam to column flange which definitely is not the intent.

Thanks

Gusset Base Plate Connection Problem

WT1221 — Fri, 09 Jun 2017 17:33:59 GMT

Hello,

I've assigned gusset base plate connections to all my column bases that have chevron braces attaching to it. 30 out of 40 connections were successfully assigned. For the other 10 connections, when I try to assign them it just says "No Connection could be assigned" in the information panel.

I've made sure that all my chevron brace members are set to "braces" on the ram elements spreadsheet. I've been experimenting with the model but have yet to find a solution. The majority of my columns are rotated with respect to the x axis due to the irregular shape of the building I'm dealing with, not sure if this could be part of the problem. However, I do have columns that are rotated and connections were successfully assigned.

I'm using the ram connection module within ram elements version 13.4.0.177.

Thanks

RAM Concept Point Load Distribution For Slab Analysis

WT1221 — Tue, 18 Aug 2020 12:43:52 GMT

Hello,

I wanted to check what method does RAM Concept use to distribute point loads when analyzing slabs? I'm comparing analysis results to hand calculations and the resulting moments from RAM Concept are smaller than my calculations.

Thank you

RAM Concept

WT1221 — Wed, 04 Mar 2020 13:26:45 GMT

Hello,

I keep getting the error below in RAM concept when trying to generate a mesh. I tried deleting the wall as it recommends, but that didn't help.

I have walls that are curved so I had to model these as a series of small straight segments, so that might be causing the issue. Any way I can get around this?

Thank you

Analysis Warnings

WT1221 — Fri, 09 Aug 2019 14:08:58 GMT

Hello,

I'm getting the two warnings below after completing the analysis for a structure, but I'm not getting any errors so it does let me complete the design without issues.

1) Longitudinal axes of one or more segments of member 1389 have different directions. The merge nodes tolerance may be too high.

2) FEM member 2994 Has Larger Rigid End Zone Lengths (REZ) Than Member's Length. REZs Set to Zero.

Is it ok to proceed with the design given these warnings or how can I fix them?

Thanks

HSS Splice Connection Issue

WT1221 — Fri, 14 Jun 2019 15:01:11 GMT

Hello,

I'm using RAM Connection version v12 (12.00.01.40) and I have a couple of questions:

1. There is currently no way of doing HSS beam splice connections, is this correct?

2. Assuming the above is correct, I tried doing an HSS column splice connection using the EP Bolted connection type. I applied shear and moment to this connection as shown in the first image below, but the module is not recognizing these loads and is showing a stress ratio of zero. If you look at the second image below, when I click on Loads it's only recognizing Axial loads which I don't have any. Am I missing something or is this an error with this module? If so, will there be a fix?

Thank you

Unbraced Length in Ram Elements

WT1221 — Fri, 22 Dec 2017 17:54:07 GMT

Hello,

Please see the girder on the image below. Does Ram Elements consider the beams framing into it as brace points when calculating the unbraced length and moment capacity of the girder? I'm using version 14.00.01.8.

Thanks

Torsion on Wide Flange Beam

WT1221 — Mon, 06 Nov 2017 21:10:34 GMT

Hello,

I'm using Ram Elements version 14 which now calculates torsion on wide flange beams. See below. The 10 Kip load on the first image is 2.5 ft away from the beam. So this torsional moment is supposed to be 25 k-ft. When looking at the design output report on the second image, the demand is 29,225.59 k-ft which seems very high. How is Ram coming up with this number? Thanks.

Ask A Question II

Mon, 06 Nov 2017 01:12:10 GMT

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Truss Connection

WT1221 — Tue, 22 Aug 2017 12:19:43 GMT

See below. Can these type of truss connections be done in Ram Connection? I haven't found a way. If so, how? Thanks

Ram Elements Effective Length Factors

WT1221 — Fri, 11 Aug 2017 16:14:53 GMT

See the column and member restraints and fixities below. I have my K33 and K22 values both set to "0" and the K value type set to "Recommended". The Ram Elements help section says the following:

"For AISC and AS codes, if K has its default value of (0), the program will calculate the approximate values of K according to the respective code (AISC360 Table C-C2.2, AS4100 section 4.6.3)."

When I go to the design report, ram is taking both the K33 and K22 values as 2.1 which is the K factor for condition (e) on the table ( see below). If this column is pinned at the base (not fixed) and pinned on top (not free to rotate and free to translate), why is it choosing a 2.1 factor instead of 1.0 for condition (d)? Thanks.

Ask A Question I

Tue, 01 Aug 2017 02:10:43 GMT

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Ram Connection - Export to DXF

WT1221 — Mon, 26 Jun 2017 14:10:47 GMT

When exporting a ram connection detail into dxf format it is exported as a 3D model when I open it in Autocad. I'm trying to import this file into Revit and edit it from there, but it won't let me explode it because the file is in 3D. Is there a way to fix this?

Thanks

Inverted Chevron Base Connection

WT1221 — Mon, 19 Jun 2017 18:42:54 GMT

Is there any way to assign/design this type of connection? See below. The base will be sitting on concrete.

If not, is there a work-around for this?

Thanks