Partner logo
 

Pushover Analysis

 

How is the Pushover Analysis performed in Advance Design?

The Pushover Analysis is a non-linear static analysis used to simulate the post-elastic behavior of the structure. The load is applied in increments, whilst the plastic behavior of the structure is modeled locally, via the plastic hinges applied at the ends of linear elements.

The process of defining the Pushover Analysis and reviewing the results can be broken down into the following steps:

  •   Defining the plastic hinges;
  •   Defining the pushover lateral loads;
  •   Defining the pushover analysis;
  •   Running the pushover analysis;
  •   Reviewing the pushover analysis results.

The aim of this document is to show how these steps can be performed. It is assumed that a model deemed adequate for a linear static analysis has been already defined. Only the additional steps required for a Pushover Analysis will be shown, showcasing the new dialogs and properties panes.

Defining the Plastic Hinges

The plastic hinges can be defined from the properties pane of a linear element or of a selection of linear elements, as illustrated in Figure 1.

There are three degrees of freedom (DOF) on which the hinges can be applied:

  •   Tx – axial plastic hinge, along the local X-axis;
  •   Ry – flexural plastic hinge, around the local Y-axis;
  •   Rz – flexural plastic hinge, around the local Z axis.

The plastic hinges can be enabled at both ends of the element: Extremity 1 – the start of the element and Extremity 2 – end of the element. Hence, each element can have two plastic hinges.

Figure 1 – Definition of a plastic hinge

Each plastic hinge has its unique ID that contains some information regarding the hinge position and its type. For example, the meaning of the “PLH-L112-1 C” ID is:

  •   “PLH” – plastic hinge;
  •   “L112” – the plastic hinge is positioned on linear element 112;
  •   “1” – the plastic hinge is positioned at extremity 1;
  •   “C” – the element is a column.

The software will detect whether the element is a column (vertical element), or if it is a beam (horizontal or inclined element) and will assign by default the appropriate hinge type.

The Eccentricity represents the position of the plastic hinge along the local X-axis of the element with respect to the corresponding extremity. The value of Clipping of forces is defined according to the Eccentricity. It is set on the corresponding planes with respect to the directions on which the plastic hinges are enabled. This is performed in order to consider the internal forces diagrams up to the location of the plastic hinges.

The properties of the plastic hinge can be defined by opening the Plastic hinge definition dialog from the   “ ” icon.

 

Plastic hinge definition dialog – Auto defined

By default, when enabling a plastic hinge, the Definition is set to “Auto defined”, the Code is set with respect to the norms used for the model and the Type is set according to the type of the element. The dialog is shown in Figure 2.

Figure 2 – Plastic hinge definition dialog – Auto defined

 

Plastic hinge definition dialog overview:

  1. Direction: it can be enabled/disabled each DOF on which the plastic hinge is defined. The plastic hinge properties can be defined independently on each DOF.
  2. Definition: when set to “Auto defined” – the hinge properties are computed automatically; when set to “User-defined” - the hinge properties can be customized.
  3. Code: hinge properties can be defined either with respect to “FEMA 356:2000” or “EC 8-3:2005”.
  4. Type: A different list of plastic definitions is available for each combination of Code (FEMA 356 or EC8-3), material (steel or concrete), and DOF (Tx, Ry. Rz).
  5. Template: a predefined plastic hinge can be loaded.[1]
  6. Yield Bending Moment - the value of the bending moment at which the plastic hinge will develop. This value is computed during the analysis.
  7. Yield Rotation – the rotation at yielding of the cross-section at the location of the hinge. This value is computed during the analysis. Used for the computation of the limit states – in the codes, the limit states are defined as a ratio of the yield rotation.
  8. Acceptance criteria/limit states - The limit states are calculated with respect to the selected Type, in accordance with the code (both in FEMA and EC 8-3 limit states are tabulated).
  9. Normalized – When enabled, the plastic hinge diagram and the limit states are displayed as a ratio of the Yield Rotation/Yield Bending Moment. After the analysis, when the plastic hinge results are available, Normalized can be disabled and the effective values are displayed.
  10. Symmetric – a hinge is symmetric +/-. Used for the definition of the hinge [2]
  11. Display acceptance criteria on graph – Toggles on/off the display of the limit states on the graph.
  12. Displays the sign convention of the degrees of freedom – arrow indicates positive sign for Tx, My and Mz.
  13. Preview – displays the plastic hinge moment-rotation law.
  14. Customize hinge – when enabled, the plastic hinge Parameters can be modified.[3]
  15. Parameters – define the plastic hinge moment-rotation law.

 

[1] This feature is not yet available or with a limited scope in the release 2021 of Advance Design.

[2] This feature is not yet available or with a limited scope in the release 2021 of Advance Design.

[3] This feature is not yet available or with a limited scope in the release 2021 of Advance Design.

Plastic hinge definition dialog – User defined

When the plastic hinge Definition is set to User-defined (1.) the Yield Bending Moment, Yield Rotation, and the Acceptance Criteria/Limit States can be imposed. This can be performed by checking the Custom checkbox (2.). Several or all parameters can be customized. The parameters for which the Custom checkbox is unchecked are computed by the software.

Moreover, when the plastic hinge Definition is set to User-defined (1.), the Customize hinge checkbox (3.) can be enabled. When enabled, the Parameters defining the plastic hinge moment-rotation law can be modified.[1]

 

[1] This feature is not yet available or with a limited scope in the release 2021 of Advance Design.

Figure 3 – Plastic hinge definition dialog – User defined

Plastic hinges display

Once defined, the plastic hinges can be displayed graphically on linear elements using the Display graphic hinges command, shown in Figure 4.

Figure 4 – Graphical display of the plastic hinges

Defining the Pushover Loads

The Pushover loads are a set of lateral loads that can be applied to each level of the structure. The loads can be either manually defined or automatically generated. These loads will be incremented during the non-linear analysis.

The same hierarchy, as for all the other loads in Advance Design, applies for the pushover loads: a load case family contains several load cases, and each load case contains a set of loads. This is shown in Figure 5.

Figure 5 – Pushover Loads - hierarchy

Pushover load case family

The Pushover load case family can be defined from the “Create load case family” dialogs, see Figure 6.

Figure 6 – Create Pushover load case family

The Pushover load cases to be created can be enabled from the properties panel of the Pushover load cases. Also, the type of load distribution on the height of the building and the manner of application of the loads can be selected. The Pushover load case family properties panel is shown in Figure 7.

Figure 7 – Pushover load case family – properties

Overview of the Pushover Load case family properties panel:

  1. Load Type – There are two load types available - both FEMA 356 and EC 8-3 require that the Pushover analysis is performed with two different load distributions. For each load type, up to four load cases can be defined. Also, each load type can have its own load distribution pattern and its own manner of load application.
  2. Control – Shows how the load is incremented.
  3. State – The generation of load cases for the given Load Type can be enabled/disabled.
  4. Distribution – The load distribution on the height of the structure can be selected from the dropdown menu, or from the Pushover Loads Distribution dialog, accessible via the “ ” icon. The dialog is shown in Figure 8.

Figure 8 - Pushover load distributions

 

There are six types of available distributions:

  • Concentrated – all the lateral load is applied at the top level of the structure;
  • Uniform distributed – the lateral load is applied at each level proportionally to the weight of the floor;
  • Triangular distributed - the lateral load is applied at each level proportionally to the weight of the level and the height of the level;
  • Parabolic distributed - the lateral load is applied at each level proportionally to the weight of the level and the square of the height of the level;
  • Mode shape distributed - the lateral load is applied at each level based on the force distribution from the seismic analysis of the corresponding mode, on the corresponding direction[1];
  • User-defined – The loads can be applied manually, any types of loads (punctual, linear, and surface) can be defined, in any direction.
  1. Point of application – Defines the type of loads to be used. There are two options:
  • Center of mass – Point loads are applied at the center of mass of each level. It is required that all levels have planar horizontal elements (slabs);
  • Surface loads uniformly distributed on slabs – Surface loads are applied on the slabs.
  1. Load direction – Up to four Load cases can be enabled to be automatically generated. The loads that are generated and applied to the structure have the direction of the load case.

Note: For the automatic generation of Pushover loads it is required that the structure has planar horizontal elements at each level for the loads to be applied on. Else, the user-defined distribution has to be used, and the loads have to be defined manually.

Having defined the properties for the Pushover load case family, the load cases can be generated by using the Automatic generation of directions, as shown in Figure 7.

 

[1] This feature is not yet available or with a limited scope in the release 2021 of Advance Design.

Pushover load case

The Pushover load cases that are generated can be seen in Figure 9. Several properties can be defined independently, for each load case.

Figure 9 – Pushover load case – properties

 

Overview of the Pushover Load case properties panel:

  1. Direction – Displays the direction of the load case. The property is inherited from the load case family.
  2. Point of application – Displays the type of loads that are applied to the structure. The property is inherited from the load case family.
  3. Load eccentricity – The use of eccentricity for the generation of Pushover loads can be enabled/disabled. For punctual loads – the loads are applied with the corresponding eccentricity from the center of mass of each floor. For surface loads – the loads are redistributed in order to account for the eccentricity.[1]
  4. On X-direction – The direction of the eccentricity (+/- Y) – applicable for the Pushover load cases on the X direction can be defined.
  5. On Y direction – The direction of the eccentricity (+/- X) – applicable for the Pushover load cases on the Y direction can be defined.

Note: The Pushover load cases on the X direction have an eccentricity on the Y direction, while the Pushover load cases on the Y direction have an eccentricity on the X direction. Eccentricities are not combined.

  1. Percentage of distance on the X direction – The magnitude of the eccentricity as a percentage of the dimension of each floor’s envelope on the global X-axis of the structure can be defined. The eccentricity is calculated for each level.
  2. Percentage of distance on the Y direction – The magnitude of the eccentricity as a percentage of the dimension of each floor’s envelope on the global Y-axis of the structure can be defined. The eccentricity is calculated for each level.

Note: For the mode shape distribution of the Pushover Loads, the eccentricities are inherited from the Modal Analysis

  1. Distribution – Displays the pattern for the distribution of loads on the height of the structure. The property is inherited from the load case family.
  2. Mode no. – The eigen mode used for the distribution of loads on the height of the structure can be selected. Available when the mode shape distribution is used.[1]
  3. Maximum total lateral load – It refers to the sum of the applied lateral loads at the last step of analysis (total load that is distributed on the structure) for a given Pushover load case. This load can be calculated as follows:
    • Percentage of the total gravity loads – the load is computed as the sum of all gravitational loads (loads on the Z direction) from all load cases, except the Pushover load cases. The loads from these load cases are unfactored;
    • Seism base shear force on X – the load is computed as the sum of actions on supports of the seismic load case on the X-direction;
    • Seism base shear force on Y – the load is computed as the sum of actions on supports of the seismic load case on the Y direction;
    • Imposed Value – the value of the load is manually defined.
  4. Value (%) – The maximum total lateral load is factored by the percentage that is defined here.
  5. Value (as force) – Available when the Imposed Value option is selected. The value of the maximum total lateral load can be defined here.
  6. Control type – It can be defined as the node used for the generation of the Pushover curve (load-displacement curve). There are two options:
    • Max displacement – The maximum displacement at each step of the Pushover Analysis it is used for the generation of the load-displacement curve;
    • Master node – A node can be defined for which the displacement is read at each step of the Pushover Analysis. This displacement is used for the generation of the load-displacement curve.
  7. Node – It can be defined as the mesh node ID of the Master node to be used for the generation of the load-displacement curve.
  8. Direction – The direction on which the displacement to be read can be defined. There are two options: X and Y.
  9. Max displacement – A maximum displacement for the node defined at the Control type can be defined. The Pushover Analysis is stopped when this displacement is reached.[8]

 

[1] This feature is not yet available or with a limited scope in the release 2021 of Advance Design.

[7] This feature is not yet available or with a limited scope in the release 2021 of Advance Design.

[8] This feature is not yet available or with a limited scope in the release 2021 of Advance Design.

Figure 10 – Automatic generation of the Pushover Loads

 

Having defined the properties of the Pushover load cases, the Pushover Loads can be generated by using the Automatic generation of loads command, shown in Figure 10.

 

Pushover loads

The loads for each Pushover load case are generated in accordance with the settings defined in the Pushover load case family and the Pushover load cases properties panels.

Note: The magnitudes of the generated Pushover loads are computed during the Pushover Analysis.

Figure 11 – Pushover Loads

Defining the Pushover Analysis

The Pushover Analysis is created automatically when the Pushover Load cases are generated. Otherwise, it can be created as any other analysis, from the Settings menu, as shown in Figure 12.

Figure 12 – Pushover Analysis – definition

Figure 13 - Pushover Analysis – settings

 

Similarly, as for the existent Non-linear Static Analysis, several settings can be defined for the Pushover Analysis, as shown in Figure 13. This dialog is accessible via the “ ” icon from the Pushover Analysis properties panel, next to Analysis options. By default, the dialog is populated with all the Pushover load cases that have been generated.

Overview of the settings that can be defined for the Pushover Analysis:

  1. Enabled – The analysis of the Pushover load case can be enabled/disabled. The analysis is run only for the enabled load cases.[1]
  2. Directions – The Pushover load cases that have been defined are listed.
  3. Initial Load – A load case or combination can be selected as an initial load, to be applied to the structure in a single step, prior to the Pushover load case. The loads defined in the Pushover load case will be then applied incrementally on the structure.[2]
  4. Load step – similarly, as for the Non-linear Static Analysis the load incrementation properties can be defined here.
  5. Update stiffness – similarly, as for the Non-linear Static Analysis the stiffness update properties can be defined here.
  6. Convergence - similarly, as for the Non-linear Static Analysis the convergence criteria can be defined here.

Having defined the Pushover Analysis settings, the analysis can be run.

[1] This feature is not yet available or with a limited scope in the release 2021 of Advance Design.

[2] This feature is not yet available or with a limited scope in the release 2021 of Advance Design.

Running the Pushover Analysis

From the Model tab, The Pushover Analysis can be run by using Pushover Calculation available on the ribbon under Launch Calculation, as shown in Figure 14.

Figure 14 – Launch Pushover Calculation – Model tab

 

From the Results tab, The Pushover Analysis can be run by using Pushover Calculation available on the ribbon under Launch Calculation, as shown in Figure 15.

Figure 15 – Launch Pushover Calculation – Results tab

 

Depending on the material and the type of Plastic Hinges, there are certain results that need to be available, in order to be calculated. Thus, in some cases, it is mandatory to perform the RC calculation or the Steel calculation.

 

Requirements for the calculation of the Plastic Hinges on steel elements

  •   If the Definition set to Auto Defined and the Cross-section class is set to auto class – the Steel calculation needs to be run (cross-section class is required for the computation of the plastic hinge). This is exemplified in Figure 16.

 

 

Figure 16 - Auto-defined plastic hinge + auto cross-section class

 

  •   If the Definition is set to Auto Defined and the Cross-section class is imposed – the Steel calculation is not necessary.
  •   If the Definition is set to User Defined and the Yield Bending Moment and Yield Rotation are imposed, as shown in Figure 17, – the Steel calculation is not necessary, even if the Cross-section class is set to auto class.

 

Figure 17 - User Defined plastic hinge + auto cross-section class

 

  •    If the Definition is set to User Defined and the Yield Bending Moment and Yield Rotation are set to be computed by the software – the Steel calculation needs to be run.
  •    If the Definition is set to Auto Defined and the Plastic Hinge is defined along the X direction – the Steel calculation needs to be run ( is required for the computation of the plastic hinge). This is exemplified in Figure 18.
  •    If the Plastic Hinge is defined along the X direction and the Yield Axial Force is custom-defined – the Steel calculation is not necessary.

Figure 18 - Auto defined - DOF on local X enabled

 

Note: Currently, on Advance Design 2021 only I-shaped cross-sections (W, IPE, HEA, etc.) can be used for the Auto defined Plastic Hinges.

Requirements for the calculation of the Plastic Hinges on reinforced concrete elements

  •   If the Definition is set to Auto Defined, the RC calculation needs are run with the Detailed rebar definition on beams and columns enabled from the Calculation Settings. The real reinforcement is required for the computation of the Yield Bending Moments, Yield Rotations, and the Limit states/Acceptance criteria.

Figure 19 – Reinforced concrete – Calculation settings

 

  •   If the Definition is set to User-Defined, and the plastic hinge properties are imposed, the RC calculation is not necessary.

Note: Currently, on Advance Design 2021 only square, rectangular, circular, and Tee cross-sections can be used for the Auto defined Plastic Hinges.

Reviewing the Pushover Analysis results

Having completed the Pushover Analysis, there are several types of results available that can be reviewed:

  •   Classic FEM results;
  •   Plastic Hinge results;
  •   Pushover Graphical results;
  •   Pushover Result curves;
  •   Pushover reports.

 

Classic FEM results

All FEM results, for each step of the Pushover analysis, can be displayed both graphically on the structure (Figure 20) and as reports (Figure 21).

Figure 20 – Pushover FEM results

Figure 21 - Pushover FEM results – reports

 

Plastic Hinge results

Once the Pushover Analysis is completed, the Yield Bending Moment and Yield Rotation are available on the Plastic hinge definition dialog, Figure 22. Also, the Normalized setting can now be unchecked – in this manner the effective value of the hinge properties and limit states/acceptance criteria will be shown, they will no longer be displayed as a ratio.

Figure 22 - Plastic hinge definition dialog - Normalized unchecked

 

In addition to this, the elastic releases that are defined, in accordance with the plastic hinge law, during the pushover analysis can be reviewed, as shown in Figure 23.

Figure 23 – Plastic Hinge – Elastic Release

 

Note: The elastic releases defined in accordance with the Plastic Hinge law are defined at the location of the Plastic Hinge (e.g. eccentricity of 0.05m).

Note: On the elastic domain (until the Yield Bending Moment is reached) the elastic releases are defined with a close to infinite stiffness. Hence, it does not alter the behavior of the element on the elastic range.

 

Pushover Graphical results

The Plastic Hinge status for each hinge can be displayed graphically on the structure for each step of the Pushover Analysis. These results are accessible from the ribbon, under the Pushover Analysis results, as shown in Figure 24. The rotation of the plastic hinges is compared with the limit states/acceptance criteria and the plastic hinge symbol is colored accordingly. The meaning of the Plastic Hinge statuses is explained in Table 1 for FEMA 356 and in Table 2 for EC 8-3 plastic hinges.

Figure 24 – Plastic Hinge status

 

Note: If for a plastic hinge multiple DOF are enabled, the most detrimental hinge status is considered.

 

Table 1 – FEMA 356 Plastic Hinges – Acceptance Criteria

Hinge Status Overview – FEMA 356 - Plastic Hinges

AcronymFull nameMeaning
ELElasticPlastic Hinge has not been developed
EL-IOElastic - Immediate OccupancyRotation of the Plastic Hinge smaller than the threshold for IO
IO-LSImmediate Occupancy - Life SafetyRotation of the Plastic Hinge between the threshold for IO and LS
LS-CPLife Safety - Collapse PreventionRotation of the Plastic Hinge between the threshold for IO and CP
>CP>Collapse PreventionRotation of the Plastic Hinge larger the threshold for CP

 

Table 2 – Eurocode 8-3 Plastic Hinges – Limit States

Hinge Status Overview – Eurocode 8-3 – Plastic Hinges

AcronymFull nameMeaning
ELElasticPlastic Hinge has not been developed
EL-DLElastic – Damage LimitationRotation of the Plastic Hinge smaller than the threshold for DL
DL-SDDamage Limitation – Significant DamageRotation of the Plastic Hinge between the threshold for DL and SD
SD-NCSignificant Damage – Near CollapseRotation of the Plastic Hinge between the threshold for SD and NC
>NC>Near CollapseRotation of the Plastic Hinge larger than the threshold for NC

Pushover Results curves

The Pushover curve (Load-displacement curve) is accessible from the ribbon, by using the Pushover results curves. A load-displacement curve is available for each Pushover Load Case.

The curve is obtained by plotting the displacement against the total applied load for each step of the analysis. The displacement of the node selected in the Pushover Load Case properties is used.

Figure 25 – Pushover curve

 

Using the scroll bar below the graph, it can be browsed through the curve. For each point on the curve, it is shown the step number, the total applied lateral load, and the displacement of the master node.

 

Pushover Reports

Once the Pushover Analysis has been performed, several reports can be generated from the Report Generator, Figure 26.

Figure 26 – Report Generator

 

  •   Flexural plastic hinges status by load step

The table is shown in Figure 27. It displays the rotation, the bending moment, and the status of the flexural plastic hinges (hinges enabled around the local Y and around the local Z-axis) for each step of the Pushover Analysis.

Figure 27 – Report - Flexural plastic hinges status

Overview of the report:

  1. Load case id – name – Displays the ID and the name of the Pushover Load Case.
  2. Load step – Displays the load step of the analysis.
  3. Plastic Hinge – displays the ID of the Plastic Hinge.
  4. Ry – Displays the rotation of the plastic hinge around the local Y-axis.

Note: Since the stiffness of the plastic hinge on the elastic range is close to infinite, the rotation of the plastic hinge is close to zero at yielding.

  1. My – Displays the bending moment at the location of the plastic hinge.
  2. Ry_pl – Displays the rotation at yielding of the element’s cross-section around the local Y-axis, at the location of the plastic hinge.

Note: This rotation is used for the calculation of the limit states/acceptance criteria thresholds.

  1. My_pl – Displays the yield bending moment of the element’s cross-section around the local Y-axis, at the location of the plastic hinge.
  2. Status – Displays the status of the plastic hinge in accordance with Table 1 and Table 2.

The same information is provided for the Z Direction.

  •   Axial plastic hinges status by load step

The table is shown in Figure 28. It displays the axial deformation, the axial force, and the status of the axial plastic hinges (hinges enabled on the local X-axis) for each step of the Pushover Analysis.

Figure 28 – Report – Axial plastic hinges status

 

Overview of the report:

  1. Load case id – name – Displays the ID and the name of the Pushover Load Case.
  2. Load step – Displays the load step of the analysis.
  3. Plastic Hinge – displays the ID of the Plastic Hinge.
  4. ΔDx – Displays the axial deformation of the plastic hinge.

Note: Since the stiffness of the plastic hinge on the elastic range is close to infinite, the axial deformation of the plastic hinge is close to zero at yielding.

  1. N – Displays the axial force at the location of the plastic hinge. Tension for positive values, compression for negative values.
  2. Δt_pl – Displays the axial deformation at yielding, at the location of the plastic hinge, when the element is subjected to tension.

Note: This axial deformation is used for the calculation of the limit states/acceptance criteria thresholds when the element is in tension.

  1. Nt_pl – Displays the yield bending moment of the element’s cross-section around the local Y-axis, at the location of the plastic hinge.
  2. Δc_pl – Displays the axial deformation when the buckling critical load is applied, at the location of the plastic hinge.

Note: This axial deformation is used for the calculation of the limit states/acceptance criteria thresholds when the element is in compression.

  1. Nc_pl – Displays the buckling critical load of the element at the location of the plastic hinge.
  2. Status – Displays the status of the plastic hinge.

  •   Overstrength ratio (αu1)

The table is shown in Figure 29, displaying the overstrength factor for each calculated Pushover Load Case. Many seismic codes permit a reduction in design loads, taking advantage of the fact that the structures possess significant reserve strength.

Figure 29 – Report – Overstrength ratio (αu1)

 

Overview of the report:

  1. Load case – Displays the ID of the Pushover Load Case.
  2. Load case name - Displays the name of the Pushover Load Case.
  3. α1 – Refers to the step at which the first yield occurs.
  4. Load step – Displays the step at which the first plastic hinge has developed.
  5. Name – Displays the name of the first plastic hinge that has developed.
  6. Max Plasticity w.r. – Displays the rotation/yield rotation ratio of axial deformation/yield axial deformation ratio for this plastic hinge at this loading step.

Note: If several plastic hinges have been developed at this step, the Name and the Max Plasticity w.r. of the plastic hinge having the largest rotation/yield rotation ratio of axial deformation/yield axial deformation ratio are displayed.

  1. Total Load – Display the total Pushover Lateral Load (base shear force) applied at this step.
  2. αu – Refers to the step at which the loss of stability occurs / the last step of the Pushover Analysis.
  3. Load step - Displays the step at which the loss of stability has occurred/last step of the Pushover Analysis.
  4. Name – Displays the hinge having the highest rotation/yield rotation ratio or axial deformation/yield axial deformation
  5. Max Plasticity w.r. – Displays the rotation/yield rotation ratio of axial deformation/yield axial deformation ratio for this plastic hinge at this loading step.
  6. Total Load – Display the total Pushover Lateral Load (base shear force) applied at this step.
  7. αu1 – Displays the overstrength factor.

Footnotes:

Other products you may be interested in
Advance Design

Advance Design

BIM software for FEM structural analysis

PowerPack for Autodesk® Revit®

PowerPack for Autodesk® Revit®

Productivity add-on for Revit® bursting with tools for Architectural, Structural and MEP Designers

PowerPack for Autodesk® Advance Steel

PowerPack for Autodesk® Advance Steel

Productivity add-on for Advance Steel - practical tools for everyday needs

Autodesk® Advance Steel

Autodesk® Advance Steel

BIM software for structural steel engineering, detailing and fabrication

GRAITEC GROUP 2021 | WE'VE UPDATED OUR PRIVACY NOTICE - Click here to find out more about how we collect, store and handle your personal data and your rights.