Simulating Oedometer test results
Hi,
May I please receive some assistance with the following query,
I've been attempting to simulate laboratory oedometer tests using the Soft Soil Creep Model and the Soft Soils model and found that the curves don't seem to match.
Please refer to…
Soft soil creep model- Initial condition
Hi,
I am using the soft soil creep model to predict the settlement due to consolidation and creep for a foundation. I am wondering whether it's necessary to introduce an intermediate (dummy) phase with large time interval after the initial conditions…
B31.1 Power Piping Creep Calculations
Hi all,
I'm currently working on the design of a Power Plant's main steam line. During normal operation temperature is 485°C @ 66 barg while the design conditions are 510°C @ 79 barg. I'd like to know how does the yield strength of the material changes…
On-demand Webinar - Coffee Corner: Geotechnical Analysis - N2PC-MCT, a constitutive model for rock time-dependent behavior
Title: Coffee Corner: Geotechnical Analysis (PM) - N2PC-MCT, a constitutive model for rock time-dependent behavior
Date: Tuesday, February 14, 2023
Time: 4:00 PM Central European Time
Presenters: Tuan Bui, Research Engineer II – Geotechnical, Bentley…
RAM Concept - Creep Coefficient & Shrinkage Report
Hello,
When using RAM Concept to calculate the creep coefficient and shrinkage strains, is there some way to report the values after a load history analysis?
Sekiguchi-Ohta viscid _Input parameter
Hi there,
I have a question on how to determine the coefficient of secondary compression and the intital volumetric strain rate as part of the input parameters of the Sekiguchi-Ohta viscid model. The Material Models Manual suggests using a secondary…
Ram Concept Load History Deflections
Can someone clarify/explain how Ram Concepts determines the Load History based on the Load Combinations chosen in the Load History steps?
I ran the Load History and looked at the deflections for the "Final Instantaneous" step and got 1.28" of deflection…
Creep and Shrinkage Values
![Dilip Matange [Bentley]](https://communities.bentley.com/cfs-filesystemfile/__key/communityserver-components-imagefileviewer/system-images/anonymous.gif_2D00_44x44x2.png?_=638052675279785313)
Document Information
Document Type: FAQ
Product(s): LEAP RCPIER/ Substructure
Version(s): All
Original Author: Bentley Technical Support Group -VM
QUESTION: How to apply Creep and Shrinkage Values in the program ?
ANSWER:
User needs…
zRAM Concept Load History Calc Options (Versions Prior to Version 8 Update 2)
Applies To
Product(s):
RAM Concept
Version(s):
Various
Area:
Analysis
Load History Parameters in RAM Concept
RAM Concept uses the ACI 209R-92 models for creep and shrinkage. In these models, only modifications…
RAM Concept Load History Deflection Analysis Results Table
RAM Concept’s load history deflection calculations are complex due to the many non-linear behaviors that are considered (see Load History Deflection Calculations for more information). When unexpected results are obtained, it can be difficult to verify…
RAM Concept Load History Deflection Calculations
Long-term concrete deflections are difficult to predict due to the influence of several non-linear behaviors that complicate the calculations. Historically, design engineers have relied on approximate methods, like deflection multipliers, to simplify…
Creep calculation in SSC model
Hi everyone,
I have a question about the creep formulation in the Soft Soil Creep model.
The SSC model starts from the assumption that all the inelastic strain are creep strain and depends on the load application time.
The volumetric strain rate…
AS3600:2018 creep factor
Hello all,
Given that the new update of RAM Concept incorporates AS3600:2018 I think that the following becomes relevant. When determining the creep factor AS3600:2018 has an additional coefficient - k_6, which is intended to account for non-linear…
N2PC-Salt and N2PC-MCT - PLAXIS UDSM
Application
PLAXIS 2D PLAXIS 3D
Version
PLAXIS 2D PLAXIS 3D
Date created
28 January 2019
Date modified
12 October 2022
Rock, especially rock salt, exhibits time-dependent behaviour. Creep of rock and rock salt is…
Creep-SCLAY1S - PLAXIS UDSM
Application
PLAXIS 2D PLAXIS 3D
Version
PLAXIS 2D PLAXIS 3D
Date created
22 August 2018
Date modified
21 September 2020
The Creep-SCLAY1S model is capable of simulating the anisotropic and rate-dependent behaviour…
Concrete model in 3D 2018 exhibits no creep deformations
Application
PLAXIS 3D
Issue status
✔ Solved
First Affected Version
PLAXIS 3D 2018.00
Found in Version
PLAXIS 3D 2018.00
Fixed and Released in Version
PLAXIS 3D CONNECT Edition V20
Issue #
SW-37168
…
Stress relaxation due to creep in concrete structures
Application
PLAXIS 2D PLAXIS 3D
Version
PLAXIS 2D PLAXIS 3D
Date created
25 January 2018
Date modified
25 January 2018
Introduction
Often, structural engineers have to deal with the long-term behaviour of concrete…
Results from a geotechnical benchmark exercise of an embankment on soft clay
Application
PLAXIS 2D PLAXIS 3D
Version
PLAXIS 2D PLAXIS 3D
Original Author
P.A. Vermeer, H. F. Schweiger, M. Karstunen, M. Cudny
Date created
27 October 2011
Date modified
24 October 2016
The results of…
Soft Soil Creep model - undrained triaxial creep behaviour of Haney clay
Application
PLAXIS 2D
Version
PLAXIS 2D 2016
Date created
26 December 2016
Date modified
26 December 2016
This document validates the Soft Soil Creep model in PLAXIS. The undrained triaxial creep behaviour of Haney…
Sekiguchi-Ohta Model
Application
PLAXIS 2D PLAXIS 3D
Version
PLAXIS 2D PLAXIS 3D
Date created
02 May 2011
Date modified
02 May 2011
The Sekiguchi-Ohta model is a Cam-Clay type effective stress model for the behaviour of clay-type soils…
How to apply concrete creep reduction factor on slab when calculating temperature loading actions
Hi,
I am trying to calculate the temperature load effect on a concrete slab. However, the stress resulted is too large. Refer to other software, there will be a reduction factor considering the concrete creep at 0,3~0.5. However, I didnt find any place…
04n. How to model / perform Creep Analysis with AutoPIPE?
Applies To
Product(s):
AutoPIPE
Version(s):
2004, XM, V8i, CONNECT;
Area:
modeling
Original Author:
Bentley Technical Support Group
Date Logged & Current Version
Apr. 2016 10.01.00.05
…
Elevated Temperature Fluid Service & appendix V for B31.3 piping systems
I was reviewing B31.3 para 302.2.4, which deals with the option to allow a piping system to undergo pressure and/or temperatures variations that are above the design pressure and design temperature. Most of the calculations involved need to be done by…
zLoad History Parameters and AS 3600
***Note - The AS 3600-2018 Creep and Shrinkage Models were added in RAM Concept Version 8 Update 2. The information and recommendations on this page do not apply to that implemented creep and shrinkage model. We recommend updating to that version (or…
RE: final displacement
Long term deflection is not calculated. You can account for cracking of concrete. Please refer to the last paragraph in the wiki below