Overview of the combined analysis and design processes

Tekla Structural Designer
2020
Tekla Structural Designer

Overview of the combined analysis and design processes

Overview of Design Steel (Gravity)

Step Process Description
1 Model validation Checks are performed to detect specific issues before the analysis and design process begins.
2 3D preanalysis processes A number of pre-analysis processes are undertaken as necessary in preparation for the full analysis.
3 3D analysis A traditional frame analysis of the entire 3D model is run (excluding pattern loading) to establish a set of design forces for the steel members.
Note: The analysis type (i.e. first, or second order) is specified via Design Options> Analysis.
Note: For the above analysis, lateral translational fixed supports can optionally be applied to column nodes in order to remove unwanted lateral displacements that may prevent the analysis from completing and/ or produce unrealistic forces. This is specified via Design Options> General.
4 Member design stage

Steel members are designed or checked for active gravity combinations only.

Note: At this point design may not fully satisfy the code requirements. To achieve this a full static design is required.

Overview of Design Steel (Static)

Step Process Description
1 Model validation Checks are performed to detect specific issues before the analysis and design process begins.
2 3D preanalysis processes A number of pre-analysis processes are undertaken as necessary in preparation for the full analysis.
3 3D analysis A traditional frame analysis of the entire 3D model is run (excluding pattern loading) to establish a set of design forces for the steel members.
Note: The analysis type (i.e. first, or second order) is specified via Design Options> Analysis.
4 Member design stage

Steel members are designed or checked for all active static combinations.

5 Stability checks Sway/Drift checks and Wind Drift checks are performed for all columns and walls, (apart from any that have been manually excluded from the check

Overview of Design Concrete (Gravity)

Step Process Description
1 Model validation Checks are performed to detect specific issues before the analysis and design process begins.
2 3D preanalysis processes A number of pre-analysis processes are undertaken as necessary in preparation for the full analysis.
3 3D analysis A traditional frame analysis of the entire 3D model is run (excluding pattern loading) to establish a set of design forces for the steel members.
Note: The analysis type (i.e. first, or second order) is specified via Design Options> Analysis.
Note: For the above analysis, lateral translational fixed supports can optionally be applied to column nodes in order to remove unwanted lateral displacements that may prevent the analysis from completing and/ or produce unrealistic forces. This is specified via Design Options> General.
4 FE chasedown analysis

Requirements: Only performed if two-way slabs exist.

For a series of 3D sub models each containing the members between two horizontal planes with fully meshed floors. The complete series of models is chased down from top to bottom so loads are carried from the level above to the level below. The results are always used for slab design and optionally used for beam, column and wall design.

5 Grillage chasedown analysis

Requirements: Only performed if concrete members exist.

For a series of 3D sub models each containing the members between two horizontal planes, floors only being meshed at those levels where they have also been meshed in 3D Analysis. The complete series of models is chased down from top to bottom so loads are carried from the level above to the level below.

6 Member design stage

Concrete members and concrete walls are designed or checked for active gravity combinations only.

Note: At this point design may not fully satisfy the code requirements. To achieve this a full static design is required.

Overview of Design Concrete (Static)

Step Process Description
1 Model validation Checks are performed to detect specific issues before the analysis and design process begins.
2 3D preanalysis processes A number of pre-analysis processes are undertaken as necessary in preparation for the full analysis.
3 3D analysis A traditional frame analysis of the entire 3D model is run (excluding pattern loading) to establish a set of design forces for the steel members.
Note: The analysis type (i.e. first, or second order) is specified via Design Options> Analysis.
Note: For the above analysis, lateral translational fixed supports can optionally be applied to column nodes in order to remove unwanted lateral displacements that may prevent the analysis from completing and/ or produce unrealistic forces. This is specified via Design Options> General.
4 FE chasedown analysis

Requirements: Only performed if two-way slabs exist.

For a series of 3D sub models each containing the members between two horizontal planes with fully meshed floors. The complete series of models is chased down from top to bottom so loads are carried from the level above to the level below. The results are always used for slab design and optionally used for beam, column and wall design.

5 Grillage chasedown analysis

Requirements: Only performed if concrete members exist.

For a series of 3D sub models each containing the members between two horizontal planes, floors only being meshed at those levels where they have also been meshed in 3D Analysis. The complete series of models is chased down from top to bottom so loads are carried from the level above to the level below.

6 Member design stage

Concrete members and concrete walls are designed or checked for active gravity combinations only.

7 Stability checks Sway/Drift checks and Wind Drift checks are performed for all columns and walls, (apart from any that have been manually excluded from the check

Overview of Design All (Gravity)

Step Process Description
1 Model validation Checks are performed to detect specific issues before the analysis and design process begins.
2 3D preanalysis processes A number of pre-analysis processes are undertaken as necessary in preparation for the full analysis.
3 3D analysis A traditional frame analysis of the entire 3D model, with an option to mesh floors.
4 FE chasedown analysis

Requirements: Only performed if two-way slabs exist.

For a series of 3D sub models each containing the members between two horizontal planes with fully meshed floors. The complete series of models is chased down from top to bottom so loads are carried from the level above to the level below. The results are always used for slab design and optionally used for beam, column and wall design.

5 Grillage chasedown analysis

Requirements: Only performed if concrete members exist.

For a series of 3D sub models each containing the members between two horizontal planes, floors only being meshed at those levels where they have also been meshed in 3D Analysis. The complete series of models is chased down from top to bottom so loads are carried from the level above to the level below.

6 Member design stage

All steel and concrete members and all concrete walls are designed or checked for all active gravity combinations.

Note: Concrete slab design is not performed
Note: At this point design may not fully satisfy the code requirements. To achieve this a full static design is required.
7 Stability checks Sway/Drift checks and Wind Drift checks are performed for all columns and walls, (apart from any that have been manually excluded from the check

Overview of Design All (Static)

Step Process Description
1 Model validation Checks are performed to detect specific issues before the analysis and design process begins.
2 3D preanalysis processes A number of pre-analysis processes are undertaken as necessary in preparation for the full analysis.
3 3D analysis A traditional frame analysis of the entire 3D model, with an option to mesh floors.
4 FE chasedown analysis

Requirements: Only performed if two-way slabs exist.

For a series of 3D sub models each containing the members between two horizontal planes with fully meshed floors. The complete series of models is chased down from top to bottom so loads are carried from the level above to the level below. The results are always used for slab design and optionally used for beam, column and wall design.

5 Grillage chasedown analysis

Requirements: Only performed if concrete members exist.

For a series of 3D sub models each containing the members between two horizontal planes, floors only being meshed at those levels where they have also been meshed in 3D Analysis. The complete series of models is chased down from top to bottom so loads are carried from the level above to the level below.

6 Member design stage

All steel and concrete members and all concrete walls are designed or checked for all active static combinations.

Note: Concrete slab design is not performed
7 Stability checks Sway/Drift checks and Wind Drift checks are performed for all columns and walls, (apart from any that have been manually excluded from the check
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