ts_dlg.dcl — Tolerance Specification

File: ts_dlg.dcl
Version: v3.60
Category: Dialog Definitions
Size: 5.9 KB (178 lines)

Note

Manufacturing and Erection Tolerances

Specify dimensional tolerances for panel fabrication and installation per ACI and PCI standards ensuring quality and fit-up.

Functional Purpose

Tolerance Specification - Defines acceptable dimensional variances for panel manufacturing and erection to ensure quality control and proper fit-up.

Key Functions:

  1. Fabrication tolerances (casting dimensional limits)

  2. Erection tolerances (installation position limits)

  3. Standard tolerance sets (ACI, PCI, custom)

  4. Critical dimension identification (tighter tolerance areas)

  5. Quality control criteria (acceptance/rejection limits)

Typical Workflow

1. User opens ts_dlg (Configuration ? Tolerances)
2. User selects standard: PCI MNL-117
3. Standard tolerances loaded:
   • Width: ±1/4"
   • Height: ±1/4"
   • Thickness: ±1/4"
   • Openings: ±1/8"
   • Embed placement: ±1/2"
4. User tightens critical dimensions:
   • Connection plate X-position: ±1/8" (tight)
5. User sets erection tolerances:
   • Plumb: ±1/4" in 10'-0"
   • Alignment: ±1/4" panel-to-panel
6. Tolerances saved to project

Control Semantics

Standard Selection:

  • ts_standard - Tolerance standard:

    • PCI MNL-117 (Precast/Prestressed Concrete Institute)

    • ACI 117 (American Concrete Institute)

    • Custom project specification

    • Manufacturer standard

Fabrication Tolerances:

  • ts_width - Width tolerance: ±1/4” typical

  • ts_height - Height tolerance: ±1/4” typical

  • ts_thickness - Thickness tolerance: ±1/4” typical

  • ts_opening - Opening dimension: ±1/8” typical

  • ts_embed - Embed location: ±1/2” typical

Erection Tolerances:

  • ts_plumb - Plumb tolerance: ±1/4” per 10’ height

  • ts_align - Alignment panel-to-panel: ±1/4”

  • ts_elevation - Elevation control: ±1/2”

  • ts_joint - Joint width: ±1/4”

Standard Tolerances

PCI MNL-117 (Common)

FABRICATION:
Overall dimensions: ±1/4"
Thickness: +1/4", -1/8"
Opening locations: ±1/8"
Embed plates: ±1/2" typical, ±1/8" critical
Squareness: 1/8" per foot of distance

ERECTION:
Plumb: ±1/4" per 10' height
Alignment: ±1/4" between adjacent panels
Elevation: ±1/2" top of panel
Joint width: ±1/4" from specified width

Critical Tolerances

Connection Points:
±1/8" (tighter than standard ±1/2")

Reason: Bolt holes must align
Example: Weld plate position for field welding

Architectural Reveals:
±1/16" (very tight)

Reason: Visual alignment critical
Example: Horizontal reveal across multiple panels

Integration

Called By: Configuration menu, QC setup Used By: Manufacturing QC, field inspection Outputs: Tolerance documentation, inspection forms

Best Practices

  • ? Use industry standards (PCI, ACI) unless tighter required

  • ? Tighten tolerances only where necessary (cost impact)

  • ? Document critical dimensions clearly

  • ? Communicate tolerances to fabricator and erector

Cost Impact:

  • Standard tolerances: No additional cost

  • Tight tolerances (±1/8”): +5-10% cost

  • Very tight (±1/16”): +10-20% cost

Documentation Metadata

Enhancement Status: ? COMPREHENSIVE - ENHANCED [13/23 v3.60 remaining]

End of Document