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7.4 Strip Footing Example

In this example, you will create a new job inside this same project to illustrate the process for designing a strip footing.

7.4.1 Creating Strip Footing Job

7.4.2 Entering Strip Footing Design Parameters

7.4.3 Performing a Strip Footing Design


7.4.1 Creating a Strip Footing Job

Now let us create a new job inside this same project to illustrate the process for designing a combinedfooting.

1. Click on Job Setup > Create a New Job in the Main Navigator pane.

The Job Info and Loading forms open in the Data Input pane.

2. Enter job name as “Strip1”. 3. Choose Job type as “Combined” and design code as US.

4. Click the button to include all the Load Cases.

5. Click the Create Job button to create a new combined footing job.

of 5Pile Cap Example

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The new Strip Footing job is added to the Main Navigator pane. The new job name also appears in the Job selection list in the Standard toolbar.

Additionally, strip footing controls appear in the Job Info form.

6. Select node 2 and 3 in Main View window.

Nodes will be shown as selected as shown below.

7. Click the Create from Selected Node button in the . A tree view showing the support assignment will appear.

The strip footing is graphically added between the two selected supports.




7.4.2 Entering Strip Footing Design Parameters

Now we need to input suitable design parameters. The input for both Concrete & Rebar and Cover, Soil, & Safety are as same as the previous isolated footing example. We will use the default parameters included in the program

1. Select Combined Footing Job > Design Parameters > Footing Geometry in the Main Navigator pane.

The Footing Geometry form opens in the Data Input pane.

2. Select Calculate Dimensions for the Design Type. 3. Specify other footing dimensions as follows:

Minimum Left over hang length = 36 in Minimum Right over hang length = 36 in Minimum Width = 48 in Minimum Thickness = 12 in Maximum Length = 400 in Maximum Width = 400 in Maximum Thickness = 36 in


7.4.3 Performing a Strip Footing Design

Now is a good time to save your work, if you haven't already done so.

1. Select either:

Combined Footing Job > Design Parameters > Design in the Main Navigator pane.



or

The Analyze / Design tool in the Standard toolbar.

The progress of the analysis process is displayed in the Status Bar along with the steps being performed by the program in the Design Progress Report of the Output pane.

Once the analysis process is complete, a results table appears in the Output pane showing the pile cap dimensions and the bar size and spacing in the longitudinal and transverse directions.

The results are for only one of the six supports in the project because pile arrangements were selected for only support 1.

The Calculation Sheet opens in the Main View window for reviewing the detailed code checks.

2. Click the Graphs tab in the Main View window to display both Bending Moment and Shear Force diagrams.



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