Bentley Communities
Bentley Communities
  • Site
  • User
  • Site
  • Search
  • User
  • Welcome
  • Products
  • Support
  • About
  • More
  • Cancel
GeoStudio | PLAXIS
  • Product Communities
GeoStudio | PLAXIS
GeoStudio | PLAXIS Wiki Regenerate staged construction
    • Sign In
    • -Geotechnical Analysis Wiki
      • +GeoStudio
      • -PLAXIS
        • +Software and License - PLAXIS
        • +Documentation - PLAXIS
        • +API / Python scripting - PLAXIS
        • +Known issues - PLAXIS
        • +Models - PLAXIS
        • -Tips and Tricks
          • 3D Extrusion along a curved path
          • 3D Output: show results for shadings or contour lines
          • 64 bit User Defined Soil model
          • After a consolidation analysis I have excess pore pressures in "drained" material sets. Why?
          • An error occurred in the application – What to do
          • Application of commands: echo
          • Application of commands: Groupfiltered and Apply
          • Application of commands: Referring to objects through their index
          • Calculation Kernel Convergence log
          • Can I import a geometry in PLAXIS 2D?
          • Can I reuse existing PLAXIS 3D geometrical objects in a new project?
          • Change temporary folder for intermediate calculation data files
          • Closing PLAXIS after your calculation is finished
          • CodeMeter network error during calculation (IPv4/v6 conflict)
          • Codemeter Network Installation
          • Codemeter USB Stick behaviour
          • Command line reference
          • Compliant base and free field boundaries: check on input signal
          • Composite liner approach in PLAXIS 2D
          • Connect a node-to-node anchor with an embedded beam row halfway
          • Considerations for modelling a thick slab as a plate
          • Consolidation: Minimum Pore Pressures and Degree of Consolidation analysis may give spurious displacements of boundary nodes
          • Conversion from 2D Version 8/9
          • Conversion of PLAXIS 2D files
          • Copy/Array command in Plaxis 2D
          • Create centerline for Structural Forces in Volumes
          • Create rock bolts accurately in PLAXIS 3D
          • Creating axial force curve for Fixed End anchors
          • Deactivated loads are still visible in PLAXIS Output
          • Definition of a bending moment as load
          • Definition of Hoek-Brown model parameters in Plaxis
          • Drained Settlement Vs. Consolidation: Differences at Failure in Output
          • Drift correction for dynamic input signal from file
          • During a calculation some plastic points disappear. How is that possible?
          • Dynamic Load with Perpendicular Distribution
          • Effect of suction on soil strength, compressibility and slope stability
          • Encrypted scripting server vulnerable to replay attacks
          • End bearing of plates
          • Energy saving while running multiple calculations
          • Error when generating 3D mesh
          • Export and format plots from PLAXIS Output
          • Export or reuse geometry for New Analysis
          • Extended command syntax for mesh generation
          • Fixed and Compliant base: what input motion is required?
          • Fixities and deformation boundary conditions
          • Force envelope results explained
          • Fundamentals of pseudo-static analysis in PLAXIS
          • General modeling guidelines - recommendations
          • Graphics card issues
          • Groundwater flow analysis in PLAXIS – Brief overview
          • How do I import a geometry in PLAXIS 3D?
          • How does Plaxis deal with water pressures during dynamic calculations?
          • How does Reset displacements to zero work?
          • How does the option volumetric strain work?
          • How to activate a dynamic load
          • How to change the PLAXIS model width
          • How to check undrained shear strength using Undrained A?
          • How to convert PLAXIS V21 material database to the V22 format
          • How to define and edit a material via the command line
          • How to get a load - displacement curve using SumMstage
          • How to prescribe a dynamic displacement
          • How to run a Limit Equilibrium Method analysis from PLAXIS 2D
          • How to select more than 10 nodes to be used for a curve
          • How to setup the number of steps stored in PLAXIS Input
          • How to setup tied degrees of freedom
          • How to use command log files
          • How to validate a material via the GUI and command line
          • Hydraulic conductivity input in PLAXIS using van Genuchten functional forms in a groundwater flow analysis
          • I use PLAXIS and it says I do not have the proper entitlements
          • Improving speed of mesh generation in combination with stage generation
          • In Plaxis Curves it is possible to plot Force Fx, Fy and Fz. What are these parameters?
          • Initial degree of saturation for soil activated during staged construction
          • InputSettings object in Output
          • Inspect intermediate step results in PLAXIS Output
          • Install latest 2D version and 2D AE for converting older files
          • Is it possible to apply a distributed load on tunnel lining in PLAXIS 2D?
          • Is PLAXIS 3D 64-bit?
          • Is PLAXIS 3D enabled for multicore?
          • Iterative settings: desired minimum and maximum
          • Iterative settings: Influence of Arc length control
          • Iterative settings: Max unloading steps (arc length control)
          • Key not bound to machine
          • Language reset in PLAXIS 2D and 3D
          • Launch PLAXIS 2D calculations via DOS commands
          • Load activation in time
          • Local axis and its colour indication
          • Macros using the commands runner
          • Material datasets for plates: sheet pile wall in bending
          • Materials overview in the Model explorer
          • Memory usage in dynamic calculations
          • Mesh alignment in flow problems
          • Mesh generation might not work under Windows 7 due to security settings
          • Modelling a tapered pile
          • Modelling Rock mass using discrete discontinuities vs Jointed Rock
          • Modelling soil-structure interaction: interfaces
          • Modelling technique: Vacuum consolidation
          • Modifying boundary conditions
          • Multicore CPU and 32/64-bit
          • NATM Tunneling - Beta Method: Incomplete Staged construction method vs. Deconfinement method
          • Node-to-Node anchors as an alternative for Fixed-End anchors
          • Non-consecutive order of step numbers in Plaxis
          • Obtain Object names easily to use in commands
          • Obtaining tabulated data for materials in PLAXIS Input
          • Obtaining tabulated data from PLAXIS Input
          • Obtaining time-dependent flow results at specific timestamps in a given time interval in Flow only calculations
          • On different failure criteria for soils
          • On the initialisation of the temperatures of solid elements
          • On the use of dynamic boundary conditions
          • Opening old PLAXIS project gives a popup window. What should I do?
          • Output of flow results through interfaces
          • Output project compatibility
          • Permeability in interfaces
          • Permeability in interfaces: Practical situations
          • Pile modelling in a 2D plane strain model
          • PLAXIS 2D Command compatibility notes
          • PLAXIS 3D 2013 and older PLAXIS files
          • PLAXIS 3D 2016: Fully parametric geometry
          • PLAXIS 3D Command compatibility notes
          • PLAXIS Legacy version and supported CodeMeter drivers
          • PLAXIS Output Phase/Step object compatibility
          • PLAXIS Silent Installation
          • PLAXIS Soil model numbers in command line
          • Plaxis uses SMC files for earthquakes, but what kind of format is this?
          • Points of interest for pile modelling in a 2D plane strain model
          • Problems related to non-associated plasticity
          • Program responds that drivers are out of date, but I have a newer version installed
          • Pseudo static acceleration
          • Re-use materials from other projects
          • Reduction of stiffness does not lead to a change in displacements
          • Regenerate staged construction
          • Run multiple calculations easily
          • Safety analysis and displacements
          • Safety analysis and undrained behaviour
          • Safety analysis and Updated Mesh
          • Safety calculation with a Target Value
          • Saving PLAXIS files for an older version
          • Select points for curves prior to calculation directly in Input
          • Selecting points for curves
          • Set multiple phases to be calculated
          • Showing a list of embedded beams by length
          • Small overlaps curves message in SoilTest optimisation
          • Smart selection of line elements in PLAXIS 2D Input
          • Stiffness units for structural elements in an axisymmetric model
          • Stress relaxation due to creep in concrete structures
          • Stresses in non-porous materials
          • Structural results in tables and curve plots
          • Swept meshing in PLAXIS 3D
          • Tensile behaviour in the Hoek-Brown model
          • Tension cut-off in interfaces for User Defined Soil Models
          • Time step used in dynamic calculation
          • Trim and extend a line in PLAXIS 2D
          • Tunnels in PLAXIS 3D: Extrusions and cutting planes
          • Unable to select points for curves
          • Unable to select structures or nodes
          • Use of wells in PLAXIS 3D
          • Using an accelerogram for Dynamics
          • Using partial geometry for interesting result images in PLAXIS 3D
          • Using PLAXIS Remote scripting with the Python wrapper
          • Waterlevel inspection and editing in PLAXIS 2D
          • Westergaard's added mass for hydrodynamic pressures: a simple case
          • +Working from home with PLAXIS
        • +Publications
        • +Videos - PLAXIS
      • +PLAXIS Monopile Designer
      • +PLAXIS LE
      • +SOILVISION
      • +Geotechnical SELECT Entitlements [GSE]
      • +Subscription Entitlement Service

     
     Questions about this article, topic, or product? Click here. 

    Regenerate staged construction

    Application PLAXIS 2D
    PLAXIS 3D
    Version PLAXIS 2D
    PLAXIS 3D
    Date created 19 July 2012
    Date modified 19 July 2012

    With PLAXIS 2D and PLAXIS 3D it is possible to regenerate any Staged construction setting to the definition of the previous phase. This feature is available for any item that is part of the Model explorer and to be set per phase. This includes e.g. the active state of soil and structures, the assigned materials and load values. Items that are not included in this feature are:

    • the phase settings, e.g. calculation type, solver type, pore pressure calculation type and general phreatic surface;
    • the material parameter values since these are defined globally (for all phases);
    • the (dynamic) multiplier values since these are defined globally (for all phases)

    Regenerate all staged construction settings

    In order to regenerate all Staged construction settings, go to the model tree for the desired phase. In the model tree, right click Geometry. A pop-up menu will appear. Here, choose the option called Regenerate.

    PLAXIS 3D CE Regenerate Geometry option

    This will regenerate all items to the Staged construction definition of the phase this phase starts from. Also, all Staged construction settings in all phases following the current phase will be regenerated if the setting is not different from the current phase’s setting for the selected items.

    Example A: regenerate a model

    In this PLAXIS 3D example, we will take a very simple model with two soil layers and two surface loads, see the image below.

    For the initial phase, Soillayer A will be assigned material A and Soillayer B will be assigned material B. In phase 1, we will activate the two surface loads: the left will be set to σz = -50 kPa and the right surface load to σz = -50 kPa.
    Now we will add a new phase, Phase_2, in which we will keep the left surface load σz = -50 kPa, the right surface load will be changed to σz = -100 kPa, and the material for Soillayer B will be set to material C:

    If we would now regenerate Phase_2’s model, by using the right mouse button on Geometry in the Model Explorer, we can regenerate the settings for Phase_2 to the setting of Phase_1:

    Regenerate specific staged construction settings

    The regenerate option is available for all staged construction settings. These are Model explorer items that are phase specific and that are on any level in the Model explorer. These settings are also in available the Selection explorer when selecting items.

    You can easily regenerate the following items by right-clicking any of these model explorer items:

    • all properties for a geometric object, like Lines by right clicking Geometry > Lines
    • all properties of a structure type, e.g. all Plates by right clicking Plates
    • all load values for surface loads by right-clicking Surface Loads
    • all properties of a group, when groups are selected by just right clicking Groups > [Group x]
    • a single soil layer by right-clicking Geometry > Soil volumes > [soil layer]
    • a single structural element, e.g. Beam_4,  by right-clicking Beams > Beam_4

    To continue the example above, we will do some different actions, all starting after the original definition of phase 2.

    a) Only regenerate loads
    Now we will only regenerate the values for the surface loads to the values of phase 1, without changing the soils in phase 2. To do so, we use the right mouse button on the Surface loads item in the Model Tree, and choose Regenerate. As a result, the material assignments will not be changed, but both the surface loads are now set to σz = 50 kPa:

    b) Regenerate second soil layer in model view
    For this, we will use the right mouse button to click on the second soil layer in the 3D model view. From here we can also choose to Regenerate. As a result, phase 2 will now again have material B assigned to the second soil layer, while the loads are not changed.

    c) Regenerate first soil layer in selection explorer
    In this case, we will select the first soil layer with material A assigned by clicking on it. It will turn red and in the selection explorer you can see the selected soil material. The regeneration option will also work here. To do so, just go to the selection explorer and right-click on the soil object, and choose Regenerate. Of course, no change will be made in the model since both in Phase 1 and Phase 2 material A was already assigned to the first soil layer:

    Regenerate water conditions

    Regenerating water conditions is less straightforward and involves first a selection of the desired part of the model.
    To regenerate a single volume’s water condition, these steps should be taken:

    • Select the volume to let it appear in the selection explorer, or expand the Model explorer tree until you reach the desired Volume:
    • Now right click the Water Conditions item to Regenerate the water conditions to the previous phase’s Water Conditions.

    When water conditions for multiple volumes need to be regenerated, a multi-select is required in order to perform this action in the selection explorer.
    If the entire phase’s water conditions need to be regenerated, the following steps are needed:

    • First, make sure that all desired soil volumes are selected:
      • for all soils, click with the left mouse button on the Soils item in the Model Explorer to select all Soils
      • Alternatively, you may select all soils in the visualization:
        • first, make sure the desired soils are visible (also the deactivated ones)
        • Use the multi-selection tool to select all Soils:
        • While the entire model is visible on screen, drag the multi-selection square from bottom-right to top-left. All soils should now turn red.
    • Then in the Selection explorer, you should see something like this:
    • Now right click the Water Conditions item to Regenerate the water conditions to the previous phase’s Water Conditions.

    Please do not forget to check if the global water level needs to be regenerated in the Phases window as well.

    This same approach to regenerate only specific parts can be used for e.g.

    • Soils: VolumeStrain
    • All point loads: force in x-direction, but when you do not want to change the active state of the point loads.

    Influence on succeeding phases

    One of the features of the regeneration process is that it will regenerate all changes into the succeeding phases. This regeneration process will continue per individual property until it reaches the last phase, or when the property is not equal to the property value as it was defined as in the phase we are now regenerating.

    As an example, we will use the same model as described above, and add a phase that has the same settings as in phase 2. After regeneration of the entire Geometry of phase 2, both phase 2 and phase 3 will have the same staged construction settings as phase 1:

    If we now would have defined different load values in phase 3 compared to phase 2, then the result of regenerating the entire geometry in phase 2 will look like this:

    The loads in phase 2 are regenerated to the load values as in phase 1, as well as the material assignments. In phase 3, we see that the material is also regenerated to the one as defined in phase 1, since it was the same for phase 2 and phase 3 prior to regeneration. The load values however were not the same as in phase 2, so these will not be changed in phase 3.

    In the next example, we will take phase 1 as in the original case, but for this case in phase 2 we will change a load, and all material assignments. Then in phase 3, we will change another load, and change the material for the second layer again. We will regenerate the entire geometry in phase 2:

    The following items will NOT be regenerated in Phase_3:

    • Phase 3: the second soil layer’s material will not be regenerated to material B, since the material assignment was not the same as in phase 2 prior to the regeneration
    • Phase 3: the left load since the load was not the same as in phase 2 prior to the regeneration

    These items will be changed:

    • Phase 2: material for the top layer to the material of phase 1 for this soil layer
    • Phase 2: material for the second layer to the material of phase 1 for this soil layer
    • Phase 2: the load value of the right load
    • Phase 3: top soil layer. This soil layer was assigned the same material as it was in phase 2 prior to the regeneration.
    • Phase 3: the load value of the right load. This was the same load value as it was in phase 2 prior to the regeneration

    Conclusion

    The regeneration option is a powerful tool to reset and regenerate features in phases to the values in the previous phase. It can also apply these changes into the following phases, as long as the values were the same as in the phase you are regenerating.

    • PLAXIS 3D
    • Staged Construction
    • phases
    • PLAXIS
    • Regenerate
    • Reset
    • previous phase
    • PLAXIS 2D
    • Share
    • History
    • More
    • Cancel
    • Micha van der Sloot Created by Bentley Colleague Micha van der Sloot
    • When: Mon, Dec 23 2019 7:08 AM
    • Revisions: 1
    • Comments: 0
    Recommended
    Related
    Communities
    • Home
    • Getting Started
    • Community Central
    • Products
    • Support
    • Secure File Upload
    • Feedback
    Support and Services
    • Home
    • Product Support
    • Downloads
    • Subscription Services Portal
    Training and Learning
    • Home
    • About Bentley Institute
    • My Learning History
    • Reference Books
    Social Media
    •    LinkedIn
    •    Facebook
    •    Twitter
    •    YouTube
    •    RSS Feed
    •    Email

    © 2023 Bentley Systems, Incorporated  |  Contact Us  |  Privacy |  Terms of Use  |  Cookies