Steel Connection Designer - Clip Angle

Create and customize a Clip Angle connection

 
Clip Angle - Steel Connection designer

Clip Angle connections are used for connecting a floor beam to another beam, or a column to a beam. The attached beam can be sloped to the main one. The angles are bolted or welded to the main beam.

Clip Angle - Steel Connection designer

Joint elements

Clip Angle - joint elements

You can customize each joint element using the available buttons from the Joint elements panel. All changes made in every window can be viewed in real time. For example, you can define the geometry of the clip angles, copes, set the configuration of bolts and customize the welds (thickness, type and quality) for each part of the joint

Each parameter is illustrated by a corresponding image in the dialog box.

Clip Angle - Steel Connection designer
Clip Angle - Steel Connection designer
Clip Angle - Steel Connection designer

Another simple way to change the joint elements geometry is by modifying directly the dimension line values available in the views. This way, the joint geometry will be much easier to define by double-clicking on the editable dimension line values (without parentheses).

The dimension lines that contain values between parenthesis cannot be modified and correspond to the grayed-out values that appear in the element dialog. For example, the user can change the bolts positioning directly in the views for values that are not grayed-out in the bolts dialog.

Clip Angle - Steel Connection designer

Joint profile section

Main member of the joint can be set as beam or column, using the radio buttons available in the dialog.

Clip Angle - joint profile section - input assembly
Clip Angle - joint profile section - input assembly

The “Third beam” can also be used by simply enabling it.

For each joint member (main beam, second beam, third beam), a drop-down list is available for selecting the desired “I” section, or creating a new parametric “I” section (laminated or welded). The steel class can be also set for each joint member.

Clip Angle - joint profile section - input assembly

Design assumptions

After defining the joint elements, the users have the possibility to choose the material for each element according to different standards and set the following steel design assumptions: steel corrosion, control of the shear planefor bolts (threaded/ unthreaded), weld design method and give values for the safety factors that will influence the calculation results.

Clip Angle - design assumptions 1

Definition of load cases and combinations

Users have the possibility to define load cases, load combinations and add values for the loads (N - axial force, M – bending moment, V- shear force). The sign convention is displayed in the Loads dialog for each joint type. It is possible to set manually the combination coefficient or automatically generate combinations according to the Eurocode 0. The users can add different load cases from the available list. Also, the envelope load case doesn’t require any combination, because it is interpreted as a special load case that has the meaning of a combination which consists only of the maximum value of the efforts. For example, the user can define an envelope case that can provide the maximum axial force, maximum shear force or maximum bending moment.

Calculation results

For the calculation of connections, BD Steel Connection uses Eurocode 3 international design standards, for all the connection components verification: bolts, welds, plates, etc. and parts of the connected elements, beams web and flanges.

The module can generate a report which contains a range of chapters that describe the calculation theoretical formula, the calculation results and work ratio for each verification.

Clip Angle - joint profile section - input assembly

From a list, the chapters to be included in the report can be chosen. Here is an example of the main verification chapters that appear in the generated report.

Clip Angle - joint profile section - input assembly
Clip Angle - joint profile section - input assembly

For each verification, the Calculation results tab displays: the work ratio, resistance, effort and combination. Above is an example of calculation results for a splice model.

Errors and warnings may appear in the console during this stage, whenever there are failed verifications, hole distances conditions that are not satisfied, or other joint design problems.

The Generate command available in the ribbon creates the report in .doc or .pdf file. With the Preview command, users can generate a report by selecting one of the available templates, or creating a new report using the Report Designer.

 

 

Clip Angle - joint profile section - input assembly

Coloring on views elements exceeding the ratio

If the calculation shows that some connection components (angle, beam, column, weld) have failed verifications (a work ratio >100%), then such elements are colored in red on all views.

This helps identify easily all elements that should be reviewed without checking the report and makes the connection design process much easier.

Clip Angle - Coloring on views elements exceeding the ratio

Generic detail view

The user can obtain a generic connection drawing (elevation and sections), which can further be exported and adjusted in other CAD software.

Clip Angle - Generic detail view

The Drawing Settings dialog is used for customizing the drawing. Here, the user can set the page layout and the title blocks, disable different views (sections/elevation) in the drawing, change the section symbols and the scale for each view. The print margins can be set when printing the generated drawing.

Clip Angle - Generic detail view

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