Seismic with transportation loads
I have a large warehouse type building that has a heavy bridge crane in it. The bridge itself runs along two stationary rails at each end of the bridge. The crane moves along the length of the bridge.
I add the load as a transportation load to account…
ASCE 2016 Directions
Hi,
If I make a static seismic load case using ASCE 2016, in what directions is the seismic load applied? Is it just +X, +Y, +Z?
Thanks,
Sean
Seismic Load Generator
I am using the seismic load generator for the first time. Can you please verify that I have applied it correctly? This is a viaduct with a long through-truss span. CRT ped LL straight PRATT TRUSS w MBTA ELEV.std
Staad Pro does not include Seismic load NBCC 2015
Dear All,
I highly recommend to include calculation of seismic load using NBCC 2015. I see it as a big gap in Staad Pro not to include Seismic loading using NBCC 2015
Thanks a lot
Vertical component of seismic load - NBCC
Dear All,
I am trying to consider vertical component of seismic load using National building code of Canada NBCC. I assume 70% of acceleration is vertical direction (see below), but I am getting errors. I would appreciate if you tell me where is the…
Base Driven Time History Collapse Analysis
I have been conducting some sample seismic time history collapse analysis with a simplistic model to check how realistic the results are from the SACS Collapse module. The SACS model I created was a simplistic monopile structure with a length of 30m,…
22. SAM cases are not included in AutoPIPE's code combination 2Mb2+ 2Mce, only the seismic force are being evaluated, why?
Applies To
Product(s):
AutoPIPE
Version(s):
ALL;
Area:
Cod combinations
Date Logged & Current Version
Aug. 2021 12.06.00.48
Problem:
SAM cases are not included in the 2Mb2+2Mce code combination.
Solution:…
01. "W831-11: Seismic level includes cases not analyzed" message appears when trying to analysis, why?
Applies To
Product(s):
AutoPIPE
Version(s):
ALL;
Area:
Calculations
Date Logged & Current Version
Aug. 2021 12.06.00.48
Problem:
When I run an analysis with AutoPIPE V8i 09.06.00.15 with JSME S NC1-PPC Piping…
W831-11: Seismic level includes cases not analyzed warning message in AutoPIPE
Applies To
Product(s):
AutoPIPE,
Version(s):
2004, XM, & V8i
Environment:
N/A
Area:
warning
Original Author:
Bentley Technical Support Group
Problem:
The…
RAM Frame - Moderately Ductile Beam Requirements
I am looking at the requirements of the beam at the second story of the chevron BRBF. Why is RAM Frame checking Beam ductility using the Diagonal Brace requirements of AISC 341-16? The output clearly says it does not check the axial demand in the beam…
0. How to apply a Dynamic Seismic / Response Spectrum load case in AutoPIPE?
Applies To
Product(s):
AutoPIPE
Version(s):
ALL;
Area:
Load case
Date Logged & Current Version
June 2021 12.06.00.48
Problem:
See the following resources to learn how to apply a Dynamic Seismic load case in…
0. How to apply a Static Seismic load case in AutoPIPE?
Applies To
Product(s):
AutoPIPE
Version(s):
ALL;
Area:
Load case
Date Logged & Current Version
June 2021 12.06.00.48
Problem:
See the following resources to learn how to apply a Static Seismic load case in AutoPIPE…
12. Pushover
The 12nd option in the RM Bridge Enterprise Training Examples, 12. Pushover has the datasets and a description document for modeling and analysis of a Pushover bridge structure. It can be accessed at File\Examples\Training Examples by selecting 12. Pushover…
Analysis of shear wall pedestrian bridge system
Good day,
I would like to kindly query a few observations I have gathered from a shear wall model I am currently undertaking. The structure being modelled is an rectilinear shear wall system which comprises 4 walls, similar to an elevator core in…
5. Earthquake - Response Spectrum
The option 5. in the RM Bridge Enterprise Training Examples is the Earthquake that has the datasets and a description document for the seismic analysis of a three span bridge using the response spectrum analysis with all necessary steps as listed below…
How to apply sequence of loading for elevated water tank resting on sloping ground by using Response spectrum analysis?
Hello.sir i m comparative study of elevated water tank resting on sloping ground & take slope varies from 0 to upto 30degree..I have dout in staad model.. actually I already model but my result not getting correct..means as per our study base shear will…
Seismic Provisions Joint Code Check Output Clarification
Hi,
I wanted to clarify the output for the seismic provisions joint code check in regards to continuity plate. I am unclear of what the 0.66" under "Tf Prov (in)" is indicating. Do I need a 0.66" thick continuity plate? Also, how is RAM arriving at…
Time History Analysis
Greetings,
As understand from the SACS Help manual, while running time history analysis, one can define 3 time history function in one file.
I have few questions on this analysis as below,
1) How to decide the Directionality Factors? As per help…
CQCX - complete quadratic combination without sign adjustment
CQCX is the variant of the complete quadratic combination working without adjusting the sign of the result values . It's considered an evolution of the CQC rule. The following formulas are used in CQCX:
Rk,tot,max = √abs(ΣΣRk,i*ρij*Rk,j) and
Rk,tot…
Superposition Rules
Superposition Rules are used to combine the contributions of the individual natural modes in the final Seismic result including all. As shown in the image below, in the pull-down menu, the options are:
ABS - Absolute values
SRSS - Square Root of Sum…
Earthquake Load: Seismic events
In RM Bridge Schedule \ Load Definition \ Earthquake Load users can define the input for all seismic events to be analyzed in the structure. The Loads are called by the specified number and defined by the reference Modal-File *.mod that includes the model…
Seismic load problem in staad
When (-)FY is inserted, it works without any problem. By the way, in the case of (+) FY load, is the FY value of DL reaction force and seismic load different?
09. How to apply Seismic loads to part of model and not to complete model?
Applies to
Product(s):
AutoPIPE
Version(s):
ALL;
Area:
Modeling
Date Logged & Current Version
May. 2019 12.00.00.14
Problem:
How to apply Static Seismic G factor to part of the model, instead of the whole model…
3.3.3 地震荷重定義
プロダクト:
STAAD.Pro
バージョン:
STAAD.Pro CONNECT Edition
環境:
All
Original Author:
Khanh N. Hoang
1．必要な環境
STAAD.Pro CONNECT Edition
地震荷重定義にあたって以下の情報が必要となる…
Dynamics / Seismic Features in PLAXIS, 12 Jan 2021 SIG Workshop - Geotechnical Analysis
Title: SIG Virtual Workshop: Geotechnical Analysis - Modelling Piles in PLAXIS Date/Time: January 12, 2021 at 10:00 A.M. CET and again at 04:00 P.M. CET Presenter: Micha van der Sloot, Senior Manager User Success - Geotechnical, Bentley Systems, Inc.…