Function
Performs the design checks for post-tensioned slab strips using the design parameters and reinforcement arrangement information specified in the PT Slab Rebar for Checking.
Call
From the Main Menu
select [Post Tension] tab > [Design] group > [Perform Design] > [PT Slab Strip Checking]
Input
Overview
The Design Check Result Dialog provides a comprehensive interface for reviewing and managing post-tensioned slab design and checking results.
The dialog consists of four main areas:
Result Control Panel
Live Design View
Design Result Table, and
Action Button Panel.
Result Control Panel
Provides options for controlling the display mode, result type, and filtering conditions used to review design results.
Live Design View
Provides a graphical representation of the Design Strip for real-time verification of span configurations and reinforcement arrangements.
The view displays:
Span lengths and Design Section numbers for each span.
Reinforcement arrangements assigned to each Design Section.
Locations of supporting columns and walls.
Basic top and bottom reinforcement information.
When View Mode > By Span or By Design Section is selected, selecting a row in the result table highlights the corresponding Span or Design Section in the graphical view, allowing users to quickly identify its location within the structure.
Design Result Table
Displays detailed design check results in tabular format for each Design Strip, Span, or Design Section based on the selected View Mode.
Results that do not satisfy the design criteria are highlighted for easy identification and review.
Action Button Panel
Provides tools for report generation, reinforcement updates, result export, and model-view synchronization.
The panel also includes controls for selecting or deselecting result table rows before performing follow-up actions.
The dialog window can be resized by dragging the lower-right corner, providing additional viewing space when reviewing result tables containing a large number of columns, such as stress verification results.
Result Control Panel
View Mode
Controls the level of detail displayed in the result table.
Summary: Displays design check results summarized by Design Strip.
By Span: Displays design check results for individual spans within a Design Strip.
By Design Section: Displays detailed design check results for individual Design Sections.
Selection Filters
Controls the scope of results displayed in the table.
Design Strip
Allows users to select specific Design Strips for review.
Activated when View Mode > By Span or By Design Section is selected.
Results are displayed only for the selected Design Strip(s).
Span
Allows users to select specific spans within the selected Design Strip.
Activated when View Mode > By Design Section is selected and a single Design Strip is chosen.
Results are displayed only for the selected span(s).
Results Type
Controls the type of design results displayed.
Strength: Displays flexural strength design results.
Stress: Displays concrete stress verification results.
Disabled when View Mode > Summary is selected.
Result View Option
Filters results according to their verification status.
All: Displays all results.
OK: Displays only results that satisfy the design criteria.
NG: Displays only results that do not satisfy the design criteria.
Action Button Panel
Select All / Unselect All
Selects or deselects all rows in the result table. Subsequent actions are applied only to selected items.
Graphic Report
Generates a graphical report for the selected Design Strip.
Available only when View Mode > Summary is selected.
Detail Report
Generates a detailed design calculation report for the selected Design Section in Word format.
Available only when View Mode > By Design Section is selected.
Update Rebar
Updates the reinforcement arrangement using the reinforcement proposed by the design results.
The updated reinforcement information can be reviewed in the PT Slab Rebar for Checking function.
Copy Table
Copies the result table data to the clipboard for use in external applications such as Excel.
Connect Model View
Synchronizes the selected result table entry with its corresponding location in the model view.
Summary: Displays the corresponding Design Strip.
By Span: Displays the corresponding Span.
By Design Section: Displays the corresponding Design Section.
This feature enables rapid identification of the structural location associated with the selected design result.
Design Result Table: View Mode (Summary)
Provides a summary of all check results (strength and stress check results) for the Design Strip in table format.
Design Strip: Name of the target Design Strip.
SEL: Indicates whether the Design Strip is selected for subsequent actions, such as report generation.
Check: Displays the overall design verification result (OK/NG) for the Design Strip.
DL Balance Load Ratio
Evaluates whether the prestressing force appropriately balances the slab self-weight load.
Min/ Max: Displays the minimum and maximum dead-load balance ratios.
Span: Span number where the corresponding value occurred.
Ratio: Displays the calculated dead-load balance ratio used to evaluate the effectiveness of prestressing in balancing the slab's self-weight.
Check: Verifies whether the prestressing force provides an appropriate level of dead-load balancing, ensuring that the balance ratio is neither insufficient nor excessive according to the specified design criteria. Displays the verification result as OK or NG.
Precompression
Verifies whether the average concrete compressive stress satisfies the allowable precompression limits defined in the design code options.
Stress: Displays the average concrete compressive stress at the governing location used for the precompression check.
Check: Verifies whether the calculated concrete compressive stress falls within the allowable precompression stress range (minimum to maximum) specified in the Design Code Options. Displays the verification result as OK or NG.
Flexure
Displays the overall flexural strength verification result for the Design Strip.
LC: Displays the governing load combination producing the most critical result.
Span (Section): Displays the span number and Design Section number where the governing compressive stress condition occurs.
Ratio: Displays the flexural strength ratio for the governing design condition.
Conc. Stress (C)
Displays the concrete compressive stress check result for the governing condition.
LC (Stage): Displays the governing load combination number and corresponding loading stage.
Stage: Identifies the governing stress evaluation stage:
I – Initial
S – Sustained
T – Total
Span (Section): Displays the span number and Design Section number where the governing compressive stress condition occurs.
Ratio: Displays the concrete compressive stress ratio for the governing condition.
Conc. Stress (T)
Displays the concrete tensile stress check result for the governing condition.
LC (Stage): Displays the governing load combination number and corresponding loading stage.
Stage: Identifies the governing stress evaluation stage:
I – Initial
S – Sustained
T – Total
Span (Section): Displays the span number and Design Section number where the governing compressive stress condition occurs.
Ratio: Displays the concrete tensile stress ratio for the governing condition.
Design Result Table: View Mode (By Span)
Performs Design for individual spans within each Design Strip.
Design Strip Selection Filter
Allows users to select specific Design Strips for review.
Activated when View Mode > By Span is selected.
Results are displayed only for the selected Design Strip(s).
Selecting All displays results for all Design Strips.
Design Strip: Displays the name of the Design Strip being evaluated.
Span: Displays the name of the span being evaluated.
SEL: Indicates whether the span is selected for subsequent actions.
Check: Displays the overall design verification result for the span.
T/B: Identifies whether the result corresponds to the Top (T) or Bottom (B) reinforcement location.
When Results > Strength is Selected
Displays flexural strength design check results for each span, including reinforcement arrangement information, governing load combinations, required flexural strength, available design strength, and flexural strength ratios used for design verification.
Reinforcement arrangements are classified into I-Part (start support region), M-Part (mid-span region), and J-Part (end support region) to facilitate span-wise reinforcement review. If reinforcement information is unavailable for a corresponding section or the section is not included in the design check, the result is displayed as “-”.
I-Part
Displays reinforcement information for the start support region of the span.
Ending: Displays the ending Design Section number defining the I-Part region.
Rebar: Displays the reinforcement arrangement assigned to the I-Part region (e.g., #5@16'', 2-#5).
M-Part
Displays reinforcement information for the mid-span region.
Starting: Displays the starting Design Section number defining the M-Part region.
Ending: Displays the ending Design Section number defining the M-Part region.
Rebar: Displays the reinforcement arrangement assigned to the M-Part region (e.g., #5@16'', 2-#5).
J-Part
Displays reinforcement information for the end support region of the span.
Starting: Displays the starting Design Section number defining the J-Part region.
Rebar: Displays the reinforcement arrangement assigned to the J-Part region (e.g., #5@16'', 2-#5).
Flexural Strength Check
Displays the flexural strength verification result for the span.
LC: Displays the governing load combination number.
Section: Indicates the Design Section, producing the critical flexural demand.
Mu: Displays the required factored flexural strength.
φMn: Displays the design flexural strength.
Ratio: Displays the flexural strength utilization ratio (Mu/φMn). Values greater than 1.0 are reported as NG.
When Results > Stress is Selected
Displays design stress verification results for each span under Initial, Sustained, and Total loading stages, including governing load combinations, critical sections, calculated concrete stresses, allowable stress limits, and stress ratios used for serviceability verification.
Stress Check (Initial)
Displays concrete stress check results for the Initial loading stage immediately after prestress transfer.
Conc. (Compressive)
Displays concrete compressive stress verification results for the governing condition.
LC: Displays the governing load combination number.
Sec: Displays the Design Section number corresponding to the governing condition.
σ: Displays the calculated concrete compressive stress.
Allow: Displays the allowable concrete compressive stress.
Ratio: Displays the concrete compressive stress ratio.
Conc. (Tensile)
Displays concrete tensile stress verification results for the governing condition.
LC: Displays the governing load combination number.
Sec: Displays the Design Section number corresponding to the governing condition.
σ: Displays the calculated concrete tensile stress.
Allow: Displays the allowable concrete tensile stress.
Ratio: Displays the concrete tensile stress ratio.
Stress Check (Sustained)
Displays concrete stress verification results for the Sustained loading stage, considering long-term effects such as creep, shrinkage, and prestress losses.
Stress Check (Total)
Displays concrete stress verification results for the Total loading stage under full service loading conditions.
Design Result Table: View Mode (By Design Section)
Performs design result review for individual Design Sections within each Design Strip and Span.
Provides the most detailed level of design check information, including section-specific reinforcement arrangements, flexural strength verification results, and concrete stress checks.
The displayed result table varies according to the selected Results option (Strength or Stress).
Design Strip Selection Filter
Allows users to select specific Design Strips for review.
Activated when View Mode > By Design Section is selected.
Results are displayed only for the selected Design Strip(s).
Selecting All displays results for all Design Strips.
Span Selection Filter
Allows users to select specific spans within the selected Design Strip.
Activated only when a single Design Strip is selected.
Results are displayed only for the selected span(s).
Selecting All displays results for all spans within the selected Design Strip.
Design Strip: Displays the name of the Design Strip being evaluated.
Span: Displays the name of the span being evaluated.
Design Section: Displays the name of the design section being evaluated.
SEL: Indicates whether the span is selected for subsequent actions.
Check: Displays the overall design verification result for the span.
T/B: Identifies whether the result corresponds to the Top (T) or Bottom (B) reinforcement location.
When Results > Strength is Selected
Rebar
Displays the reinforcement arrangement assigned to the Design Section. During Checking, the user-defined reinforcement arrangement is displayed.
No. of: Displays the number of reinforcement bars provided in the Design Section.
Rebar Size: Displays the reinforcement bar designation.
Spacing: Displays the center-to-center spacing of the reinforcement bars.
Flexural Strength Check
Displays the flexural strength verification result for the span.
LC: Displays the governing load combination number.
Section: Indicates the Design Section, producing the critical flexural demand.
Mu: Displays the required factored flexural strength.
φMn: Displays the design flexural strength.
Ratio: Displays the flexural strength utilization ratio (Mu/φMn). Values greater than 1.0 are reported as NG.
When Results > Stress is Selected
Stress Check (Initial)
Displays concrete stress check results for the Initial loading stage immediately after prestress transfer.
Conc. (Compressive)
Displays concrete compressive stress verification results for the governing condition.
LC: Displays the governing load combination number.
Sec: Displays the Design Section number corresponding to the governing condition.
σ: Displays the calculated concrete compressive stress.
Allow: Displays the allowable concrete compressive stress.
Ratio: Displays the concrete compressive stress ratio.
Conc. (Tensile)
Displays concrete tensile stress verification results for the governing condition.
LC: Displays the governing load combination number.
Sec: Displays the Design Section number corresponding to the governing condition.
σ: Displays the calculated concrete tensile stress.
Allow: Displays the allowable concrete tensile stress.
Ratio: Displays the concrete tensile stress ratio.
Stress Check (Sustained)
Displays concrete stress verification results for the sustained loading stage, considering long-term effects such as creep, shrinkage, and prestress losses.
Stress Check (Total)
Displays concrete stress verification results for the Total loading stage under full service loading conditions.