Long Span, Deep deck steel design
Hi everyone,
We are trying to use RAM Steel to help us design the gravity system of a building utilizing a long span, deep deck system. Has anyone else used similar systems before and have any tips or tricks?
Additionally, does anyone know if RAM…
How does RAM calculate the Moment of Inertia of a composite section (AISC)
Looking at the reports for a typical composite beam in RAM Structural System, I am seeing that RAM outputs I-effective (Ieff) and I-transformed (Itr) that are different from those listed in AISC Table 3-20 (Lower Bound Elastic Moment of Inertia for Plastic…
Gravity Steel Members Force per Load Case
Hello ,
I know there is a way to get the results for frame members from post-processing for each load cases which also includes D and L. Similarly is there a way to get the results for the gravity steel members?
Columns outside Slab Edge
Hey I have a situation where column is outside defined slab edge? What are the implications of this? Please see pic below:
How does RAM compute the transformed MOI for AISC's effective MOI?
Hello,
I am wondering how RAM Steel computes the I_{tr} for composite beams. For example, I have a composite beam with the following properties as computed by RAM:
But by hand, I am computing I_{tr} = 941.86, slightly less than RAM. I am guessing…
Tributary Load on Slab Opening
Hello,
I am working on a school project, so I am not experienced, just to be clear. But I have a slab openings on my floors for stairwells and elevators in the RAM modeler. However, my understanding is that RAM won't apply floor loads where there…
A better way to make repetitive changes in RAM Modeler
I have a model with 20 stories and most have a unique layout type. However, most of them share a common core of slap openings for elevators, stairs, etc. If I have to make a change on a number of these, I have to manually go and make that same change…
RAM SS Beam Deflection Error
I just go a more recent version of RAM SS and when I run the beam module there are certain beam that now show that they fail in deflection. But when I look at the report the beam does not fail in deflection. I have tried deleting the beam and putting…
Point loads acting on incorrect beam/Modeler not matching beam/joist module
This is the first time this has happened to me, but point loads that I placed on a beam in the RAM modeler are not acting on that beam when checked in the beam/joist module. However, they are acting on a different beam along the same construction grid…
Incorrect Beam Loading and Sizing - RAM SS
I have floor plate with composite beams and uniform loading but for some reason a couple beams in the top right corner are being designed with partial loading and beam sizes that are substantially larger than the rest of the floor, which doesn't make…
Defect in slip critical bolts size 1 1/4" A325 SC Class A
In the bolt shear design check for slip critical bolts using 1 1/4" A325 SC (Class A), the minimum bolt pretension is taken as 81 kips when it should read 71 kips as per AISC table J3.1. Model along with snap shots attached.
SC bolts defect.zip
how to get the loadings details in report????
I have got my report, but there is no loading details like dead load, Wind loads and all...
In report settings i have added Loadings, but its not showing.... Wt to do????
i want to see other load details. How to get that details?
ISM in RAM SS
Hi I wanted to use the ISM feature. But apparently I could not access the software downloads tile on the bentley website to do this. I got this error.(see below) What can I do for this?
Getting Wind Load error in RAM Structural Frame: "Some of the Wind Loads for Load Case (every single one of them) may have been missed on diaphragm." How to fix this? Also can't find the support contact information?
Having some problems with RAM Structural Frame: "Some of the Wind Loads for Load Case (every single one of them) may have been missed on diaphragm." How is this solved? If this is a quick fix, please let me know. How do I get the wind loads to generate…
Assign camber to a beam
I am using RAM structural systems, is there any way to assign a camber to a specific beam. I want to model the existing framework of a building so I need to include the camber that was there. Thanks.
RE: Assign camber to a beam
No, camber is always selected by the program based on the deflections and camber criteria. RAM SS - Steel Beam Deflection and Camber
RE: Loads
Check this issue first: Missing or incorrect loads on perimeter beams
Happens to members in the outer bay when the slab edge slightly diverges from the perimeter framing.
RE: Download Sbeam
Thanks. I don't actually see Ram SBeam on your contracts, but I'll double check with a sales person. Meanwhile you can always use RAM Structural System, Ram Steel with a very simple model to design a single beam. I like a 4 column 4 grid model that's…
RE: Difference between RAM Elements and Ram Structural System
Ram Elements is more like STAAD, a general purpose Finite element analysis (and design) tool. It’s different from RAM Structural System mostly in how things are modeled by placing nodes in 3 dimensional space and connecting them with lines or plates.…
RE: Ram Steel Column Optimization
I see. The way trial groups work is that the program sticks to one trial group (one nominal depth) for the whole height. It selects the lightest total column from up to 3 trial groups, so long as the design passes the code check at all stories. That's…
RE: Ram Steel Column Optimization
It sounds like you need to introduce splices. You can define splice levels in Modeler in the Story data , or you can override single column line splices in the Ram Steel Column module using Assign - Splicing...
RE: Using RAM for Moment and Shear on "Other" material member types
In the Steel Beam module, one can only get a diagram of the moments, shears and deflections via the Process - View/Update command - View diagrams, but this won't work for Other material beams. You can make the Other beams lateral members and report the…
Pin Connection at Gravity Column Receive Significant Moment
Hi,
I am using RAM to design my gravity system. The whole floor is W2 concrete composite deck floor except the blue line cross area is opening area. The column which is clouded is a gravity column and three pin-pin gravity beams connect to this column…
RE: Total beam length in steel beam module
RAM Steel always designs steel beams center to center of supports, unless you assign the beams to have offsets in the Modeler (Layout -> Beams -> Offsets). I usually use offsets to offset a beam laterally from a support, but you could also use offsets…
Total beam length in steel beam module
Is it possible in RAM Structural System/RAM Steel for it to design/analyze beams based on the length from column face to column face instead of center to center of column supports? I am back engineering a building that appears to have been designed to…