Trapezoidal Section

Section Name
If the Import New Property button was used: If multiple sections were selected for import, the Section Name item will be a drop-down list. Choose the section to be reviewed by clicking on it. Click the Import button to redisplay the list of sections available from the selected database if additional sections need to be imported. See the Note above with respect to editing an imported section.
If the Add New Property button was used: CSiBridge will suggest a default section name (FSEC1, FSEC2 and so forth). If necessary, change the name by typing directly in the edit box.
If the Modify/Show button was used: The name that appears in the Section Name item is the name of the section selected in the Properties area of the form before the Modify/Show button was clicked.
Section Notes Modify/Show Notes button. Click this button to access the Frame Section Property Notes form and add section notes to the model file.
Section Properties button. Click this button to display the Property Data form and view the frame section properties. The section properties are defaults and provided here for informational purposes only. Note that this button is not available when the Import New Property button has been used and multiple sections have been selected for import.
Set Time Dependent Properties button. Click this button to access the Time Dependent Properties form.
Set Modifiers button. Click this button to display the Frame Property/Stiffness Modification Factors form. Use that form to specify the desired modification factors. Note that modification factors can be assigned here as well as directly to line objects, as explained in Frame - Property Modifiers.
Material drop-down list. Displays the list of defined material properties. Use the list to choose the property to be included in the section definition. Clicking the + (plus) symbol preceding the Materials drop-down list will access the Define Materials form, which can be used to add or modify the material definition associated with the selected section type.
Concrete Reinforcement button. Click this button access the Reinforcement Data form. Use that form to specify reinforcing for concrete frame section properties.
Dimensions area. Displays the default values for the depth and width. If the Rectangular Section form was accessed using the Add drop-down list or the Modify/Show button, the dimension values can be changed as necessary. Note that the section shown in the gridlined display box on the right side of the form updates as changes are made to the dimension values.
Display Color. The color that will be used to display the section on-screen in the model.
Click on the "Display Color" text or the small sample square of the color to bring up the Color form.
Select the desired new color on the Color form and click the OK button.

Use the Home > View menu > Set Display Options command and check the Sections check box in the View by Colors of: area of the form to display the section by the assigned color.

Access the Trapezoidal Section form as follows:

Click the Components > Type > Frame Properties > New command to display the Add Frame Section Property form.
Set the Frame Section Property Type drop-down list to Concrete.
Click the Trapezoidal button.

Alternative 1: Click the Home > Bridge Wizard command; highlight Step 3.2 Frame Sections; click the Define/Show Frame Sections button to display the Frame Properties form.

Alternative 2: Click the Components > Type > Frame Properties > Expand arrow command to display the Frame Properties form.

Alternative 3: Select a frame object and click the Advanced > Assign > Frames > Frame Sections command, to access the Frame Properties form.

Then do one of the following:

1. - Click the Import New Property button to access the Import Frame Section Property form or the Add New Property button to access the Add Frame Section Property form.
  - 1. Select Concrete from the Frame Section Property Type drop-down list.
    2. Click the Trapezoidal button.
  - Highlight the name of a previously defined rectangular section in the Properties area/Find this Section list on the left side of the Frame Properties form and click the Modify/Show button.

If the Import New Property button is used and a database containing the selected section type has already been accessed, a form listing the sections of that type in that database will appear; choose the sections to be imported from the list by highlighting them. Note that clicking the + (plus) symbol preceding the Materials drop-down list will access the Define Materials form, which can be used to add or modify the material definition associated with the selected section type.

If sections of the specified type are not included in the database, a form to select another database to be imported will appear; choose a database from the list. If the selected type of section is not included in that database, an error message will display. To switch to another database, see the Note below.

Note: When the Import drop-down list is used as described above, the Trapezoidal Section form will include an Open File button; click that button to access a form listing the various section database files available. After choosing a database, a form listing the individual sections within the selected database will appear. Choose the sections to be imported from the list and click the OK button to redisplay the Trapezoidal Section form. If the selected type of section is not included in that database, an error message will display. Click the OK button on the error message to close it, and then click the Open File button on the Pipe Section form to redisplay the list of possible databases; choose another database. Repeat this process until a list of available sections of the required type is displayed.