some questions about the connections design procedure and detailing
hi, I have some questions about the connections design procedure and detailing by RCSA.
I) Does the "RAM connection" really use of "AISC 358-16" code provisions?
for example, recently I have checked a bolted flange plate connection and noticed that…
Seismic Loads Concentrate Only On Inclined Member
Hi Good Day!
I would like to raise my concern in my STAAD model regarding the distribution of seismic forces. Currently, I can't find a way to achieve my desired mode shape which is translational for Mode 1 and 2, and torsional for Mode 3. Though I…
How staad foundation advanced deal with seismic load of the foundation itself for overtuning check?
When doing the foudation overtuning check, how does the program deal with the seismic load from foundation itself? I couldn't find any option to specify seimsic parameters. I am assuming we need to apply the seismic load from the foundation itself from…
RAM Response Modification Factor
When using RAM Frame for a seismic analysis, is it possible to set the response modification factor to a certain value such as 3 in the event that you are using Seismic Force-Resisting System H in ASCE 7-10 Table 12.2-1 which is for "STEEL SYSTEMS NOT…
Question regarding the value of Ct as per UBC 1997
From the STAAD technical reference, section 5.31.2.1 UBC 1997 Load Definition
"C t < 0.42 if the units are in feet, and C t > 0.42 if the units are in meter."
From UBC 1997
WHERE: C t = 0.035 (0.0853) for steel moment-resisting frames. C t = 0.030…
Does STAAD design for CONCRETE SPECIAL MOMENT FRAME as per ACI 318M-11 ??
Hi,
1. Does STAAD take into account the ductile detailing provisions of CHAPTER 21 of ACI 318M-11, while arriving at the reinforcement area and stirrup area ??
3. If those provisions are available, how does STAAD identify a SMRF or IMRF or OMRF in…
Seismic Definition in STAAD for SNIP (Russian) standard
Is it possible to do Seismic Definition in STAADpro for SNIP (Russian) standard
Seismic Loading
Can someone please give me the STAAD input text for seismic to UBC and to BS EN 1998 - I find the STAAD help editor difficult to follow.
I am assuming that I will use CQC for the modal analysis, but what about SRSS etc.
In the example I have pulled…
RE: Seismic Analysis
Any load that is included as part of the mass definition for a dynamic load case ( like response spectrum or time history or even a simple frequency calculation ) will be considered. So ensure that you include the loads due to these equipment as part…
RE: CAN STAAD CONSIDER REQUIREMENTS FOR SEISMIC DESIGN CATEGORY D
Yes STAAD.Pro can check seismic provisions as outlined in the AISC 341-10. When designing as per the AISC 360-10, you need to add the design parameter called SEISMIC and set it to 1 for the seismic checks to be carried out. More details on the checks…
STAAD Seismic definition generation error
Hi,
I am unable to generate seismic parameters in STAAD. I am using STAAD SS 6: 20.07.11.33
'SAVE SIGN' Needs to be written every time we change something in the model after running it?
Dear All,
For values of pull and push in seismic load cases in a structure we need to add 'save SIGN' while using SRSS. My question is - is there a way that 'SIGN' be added only once because when we modify the structure after inserting SAVE SIGN , the…
Dear sir/mam,
I am having a problem regarding SEISMIC LOADING according to IS 1893 2002/05.
I have given seismic definition- zone , RF , damping, and all those things which were asked.
I have also given selfweight factor as 1. Now, my que. is shall i define joint…
Staad Base reactions are differing
Hi,
I am facing a problem with reference to the Staad pro v9i SS6. Please help in solving the same if its a known bug or a workaround is available.
I have imported the load data for seismic in all 6 directions (+/-X,+/-Y, +/-Z ) This is a Z up model…
Anybody knows how to Load Seismic using SNiP Code?
Good Day!
Does anybody knows how to Load Seismic using SNiP Code?
Using STAAD Generated Loads (Load Definition), what parameters shall be considered in loading seismic?
Step by step procedure may help :)
Thank you!
RE: Seismic Load Effects in RAM for non lateral members
We don't handle this automatically.
The engineer may want the gravity columns to be designed for seismic moments induced into the gravity columns when the building is displaced. This displaced shape forces the gravity columns into curvature, which results…
OPENSTAAD Seismic Definition - ModifySeismicDefinitionParams
Hi All/Suro - Bentley,
Can anyone give some idea on the following openstaad function = "ModifySeismicDefinitionParams"
I am able to define 1893 and not able to give any seismic parameters. Any support will be greatly appreciated
Regd
Vish…
RE: RAM Elements: Seismic Analysis
Ram Elements does not calculate and ELF seismic loads. It's entirely up to the user how much lateral force to apply and where to apply it.
You can get the natural periods from a dynamic analysis and you can get the total vertical reactions for the dead…
seismic loading
I have a problem, my country code is not included in Staad. But I have calculated the lateral forces (Inertial) separately with excel, now How could put these forces in the center of mass of each floor in my model to generate the model seismic static…
STAAD.Pro V8i Seismic Definition (IBC 2006)
Currently I've been doing seismic analysis for our cracking furnace.
Let's just say I was advised to consider Primary Loads 1 to 6 as seismic weights for the seismic definition. (1 to 6 are basically dead loads)
The code currently looks like this…
Seismic Analysis of Boiler Support Structure - Find local structural accelerations
I am performing a seismic analysis of a 15m steel tower structure, which supports a large boiler at a height of around 10m. I am currently using the IBC code input parameters (S DS , S 1 etc.) where STAAD utilises the equivalent force procedure.
The…
SEISMIC ANALYSIS
Sir,
How to do Equivalent Static Method of analysis for Seismic forces?
Is IS CODE 1893-part1 is in the RAM ELEMENT?
Thanks in advance.
T.Rangarajan
Undergraduate modeling 5 story structure in RAM Structural System
Hello all,
I'm an undergraduate modeling a 5 story building in RAM Structural System for a structure class. I have several basic issues:
1. Load inputs: Snow = 30 psf, LL = 100 psf, DL = 3000 kips
QUESTION: Do I differ the loading between Floors…
Seismic Parameters for Russia
Good day to all.
Tell me, please, in the analysis of seismic load what type indicated in Seismic Parameters for Russia
Dynamic Response Analysis - Input
In a Dynamic Analysis when defining a seismic load cases and using the command "SPECTRUM" does one use the site specific "Seismic Response Coefficient" Cs based on S1 and Ss accelerations derived from ASCE 7?
For example, if I calculated a Cs = 0.065…