Performing an Analysis in STAAD.Pro
Specifying Load Combinations and Analysis Commands in STAAD.Pro - On Demand Training
Learn how to specify load combinations and analysis commands in the STAAD.Pro Analytical Modeler or the STAAD.Pro Physical Modeler.
Reviewing the Analysis Results…
STAAD - Change material after analysis for service check
According to application notes by AISC, for Direct Analysis Method the UNREDUCED STIFFNESS shall be used for service checks.
Now, due to limitations by Staad for DAM (for instance, not TENSION MEMBER available), I proceed to:
1. Reduce module of elasticity…
WARNING: FYLD parameter has been deprecated for Direct Analysis
Applies To
Product(s):
STAAD.Pro
Version(s):
22.07.00.160 and Up
Environment:
ALL
Area:
Analysis Solutions
Subarea:
Direct Analysis
Original Author:
Sye Chakraborty…
Design of Solid slab (Conventional slabs)
Hello Everyone
For a while, I was using an Advanced Concrete Design (RCDC) for the design of a solid slab. Today I tried to learn the RAM concept for the slab designs but I saw a design of strips that had never seen before (When I was using RCDC and…
SIG Tech Talk: Stability Analysis and Design of Steel Structures using STAAD.Pro CONNECT Edition
Tech Talk: Stability Analysis and Design of Steel Structures Presenter: Biswatosh Purkayastha, Senior Structural Engineer, Bentley Systems Surojit Ghosh, Senior Structural Engineer, Bentley Systems Date/Time: Part 1 - 20th May, 11:30 AM GST Part 2 - 3rd…
DIRECT ANALYSIS AND ITS IMPLENTATION IN STAAD.PRO
Applies To
Product(s):
STAAD.Pro CONNECT Edition
Version(s):
All
Environment:
N/A
Area:
Analysis Solutions
Subarea:
Direct Analysis
Original Author:
Biswatosh Purkayastha…
How to Modify Notional Load Factor Applied to Auto Generated Load Combinations in STAAD.Pro Connect Edition?
The default notional load factor applied to gravity loads when using the automatic load combination generator is 0.002. Is it possible to automatically generate load combinations in the most recent version of STAAD with a notional load factor other than…
"Bentley.Staad not responding" when using notional loads for Direct Analysis
I am using STAAD Connect version 21.00.02.43.
I have been trying to create a staad file for direct analysis with notional loads.However, when opening the file as indicated in the image,
the software stops responding. This does not happen when removing…
What is the difference between ITERDIRECT and PDITER options for PERFORM DIRECT ANALYSIS command?
My understanding is that with the PDITER command with every PDelta Iteration the Taub values for Direct analysis is computed and the iteration stops when Taub converges.
In which case I cannot understand the purpose of the ITERDIRECT command. Could…
SIG Virtual Workshop: STAAD for EMEA - Introduction to P-Delta and Direct Analysis
STAAD special Interest Group for EMEA: Introduction to P-Delta and Direct Analysis Host: Badreddine Ziane, Technical Manager, Bentley Systems, Inc. 24 October 2019 at 11:00 A.M. CEST
Register Now
P-Delta and Direct Analysis…
Seismic load by applying notional load
Hello,
I am trying to use notional loads(ASCE7-05 Section 11.7.2) as seismic load that's why the building is assigned to Seismic Design Category A.
And I will use direct analysis method when designing the building as well.
I wonder there is no…
Iterations in DIRECT ANALYSIS
Applies To
Product(s):
STAAD.Pro
Version(s):
ALL
Environment:
ALL
Area:
Analysis Solutions
Subarea:
Direct Analysis
Original Author:
Sye Chakraborty, Bentley Technical…
Example on Direct analysis with steel design as per AISC 360-10 using STAAD.Pro
Applies To
Product(s):
STAAD.Pro
Version(s):
ALL
Environment:
ALL
Area:
Analysis Solutions
Subarea:
Direct Analysis
Original Author:
Sye Chakraborty, Bentley Technical…
RE: Notion load factor for 0.002 or 0.003
Regarding 1, in Direct Analysis the Taub values are determined iteratively based on the axial force in the member. When you set the notional load factor to 0.003 these iterations are not carried out and Taub is considered as 1 which is what the code recommends…
RE: Blast analysis using Direct analysis method
It would not be appropriate to do a direct analysis with a time history loading. Instead what you can do is a Direct analysis for all other cases and then analyze the time history loading using a PDELTA KG. That accounts for the pdelta effects in the…
DIRECT ANALYSIS with INACTIVE members
Applies To
Product(s):
STAAD.Pro
Version(s):
ALL
Environment:
ALL
Area:
Analysis
Subarea:
Direct Analysis
Original Author:
Sye Chakraborty, Bentley Technical Support…
RE: Divergent in load cases
The MX releases for the members 81 and 475 were taken out as shown next
*81 START MX MY MZ
*475 END MX MY MZ
81 START MY MZ
475 END MY MZ
The following code commands were redundant and were commented out
*PARAMETER 2
*CODE AISC
A modified…
DIRECT ANALYSIS and MEMBER TENSION
Applies To
Product(s):
STAAD.Pro
Version(s):
ALL
Environment:
ALL
Area:
Analysis
Subarea:
Direct Analysis
Original Author:
Sye Chakraborty, Bentley Technical Support…
MEMBER TENSION/COMPRESSION with DIRECT ANALYSIS
Applies To
Product(s):
STAAD.Pro
Version(s):
ALL
Environment:
ALL
Area:
Analysis
Subarea:
Original Author:
Sye Chakraborty, Bentley Technical Support Group
…
RE: Tension members in Staad
Gilbert : As of now, STAAD.Pro does not allow Tension/Compression members to be used in a DIRECT ANALYSIS. If TENSION/COMPRESSION is assigned, these attributes are turned off and the members are simply treated as TRUSS members which can take both tension…
Analyzing & designing a structure made of steel and concrete
Applies To
Product(s):
STAAD.Pro
Version(s):
ALL
Environment:
ALL
Area:
Analysis
Subarea:
Original Author:
Sye Chakraborty, Bentley Technical Support Group
…
RE: Steel & Concrete Load Combinations & Analysis
Using the two analysis types as part of the same analysis model should be fine. I verified it with the attached example.
Direct_Analysis_Steel_and_Concrete_Model.std
RE: STAAD Direct Analysis Method FLEX and AXIAL Parameters
While taking a look at the model, I noted a few points
Point 1
The error was stemming from the fact that MY MZ releases were applied to these members in addition to the TRUSS specification. So you need to change the MEMBER RELEASE as shown next
…
STAAD.Pro Analysis Solutions
Applies To
Product(s):
STAAD.Pro
Version(s):
All
Environment:
N/A
Area:
STAAD.Pro Support Solutions
Subarea:
N/A
Original Author:
Bentley Technical Support Group
…