dr_dlg-dcl.md — Dowel/Rebar Projection Configuration (v7.0)¶

File: dr_dlg.dcl
Version: v7.0
Category: Dialog Definitions
Size: 5.8 KB (176 lines)

Note

Structural Rebar Dowel Configuration

Configure reinforcing bar dowel projections with v7.0 AI-powered spacing optimization, lap splice validation, and automated coordination with adjacent panels.

v7.0 Enhancements¶

New Features:

? AI optimal spacing (calculates ideal dowel pattern)
? Lap splice validation (real-time development length checks)
? Adjacent panel coordination (auto-matches receiving panel)
? Load path visualization (shows force transfer)
? Seismic compliance (special detailing for seismic zones)

Typical Workflow (v7.0)¶

1. User configures 12'×10' wall panel (seismic zone)
2. Opens dr_dlg for left edge (connects to P-102)
3. v7.0 AI analyzes:
   "Detected: High seismic zone (SDC D)"
   "Lateral load: 30 PSF wind, 45 PSF seismic"
   "Recommend: 6-#6 bars @ 2'-0" o.c. vertical"
   "Lap splice: 36" (2.0× ld for seismic)"
4. AI checks adjacent panel P-102:
   ? P-102 configured to receive 6 dowels
   ? Positions match exactly
   ? Lap lengths compatible
5. Load path visualization shows force transfer
6. User accepts AI configuration
7. Both panels coordinated automatically

Dowel Configuration¶

Bar Specification¶

Size Selection:

#4 (0.500” dia) - Light connections
#5 (0.625” dia) - Standard walls
#6 (0.750” dia) - Heavy/seismic
#7-#8 - Special applications

AI Recommends Based On:

Panel type: Wall, load-bearing
Load case: Lateral (wind/seismic)
Zone: SDC D (high seismic)
Panel-to-panel moment: 15 kip-ft

AI calculation:
Required As = M / (? × fy × jd)
As = 0.42 in²

Bar options:
- 3-#6 bars (0.44 × 3 = 1.32 in²) ? (conservative)
- 4-#5 bars (0.31 × 4 = 1.24 in²) ? (adequate)
- 6-#4 bars (0.20 × 6 = 1.20 in²) ? (many bars)

AI recommends: 3-#6 @ 3'-4" o.c. (balanced)

Spacing Optimization¶

AI Spacing Algorithm:

Panel height: 10'-0" = 120"
Bar size: #6
Code maximum: 18" (ACI 318)
Optimal: 20"-30" typical

AI factors:
- Crack control (tighter = better)
- Load distribution (even spacing)
- Constructability (not too many)
- Cost (fewer bars = cheaper)

Result: 3 bars @ 3'-4" o.c. (top/mid/bottom)
Locations: 2'-0", 5'-4", 8'-8" from bottom

Lap Splice Length (v7.0)¶

Real-Time Validation:

Bar: #6 in 5000 PSI concrete
Development length (ld):
ld = 30 × db × ?(fy/f'c) (simplified)
ld = 30 × 0.75 × ?(60,000/5,000)
ld = 30 × 0.75 × 3.46 = 78" ? 80"

Standard lap: 1.0 × ld = 80" (Class A)
Seismic lap: 2.0 × ld = 160" (ACI 318 seismic)

Projection provided: 36"
Receiving panel depth: 6" (leaves 30" for lap)
Total lap: 36" + 30" = 66"

Status: ??  INADEQUATE for seismic!
AI recommends: Increase to 48" projection
New lap: 48" + 42" = 90" ? OK (>80")

Adjacent Panel Coordination (v7.0)¶

Automatic Matching:

Panel A (P-101): Sends 3-#6 dowels @ 2', 5', 8'
Panel B (P-102): Must receive these bars

v7.0 AI:
1. Detects P-102 is adjacent (BIM model)
2. Auto-configures receiving holes/slots
3. Matches bar positions exactly
4. Verifies lap length adequate
5. Updates both drawings simultaneously

No manual coordination needed!
Eliminates field fit-up issues!

Load Path Visualization (v7.0)¶

3D Force Transfer:

Interactive visualization shows:
- Dowel bars in 3D (red = tension, blue = compression)
- Force magnitude (thickness = force amount)
- Moment arm (distance between top/bottom bars)
- Grout joint (yellow = load transfer zone)
- Cracking potential (heat map)

User can rotate, zoom
Understand how connection works
Verify adequate capacity visually

Seismic Detailing (v7.0)¶

Special Requirements:

SDC A-B (low seismic):
- Standard lap lengths OK
- Normal spacing (12"-18")
- No special hooks required

SDC C-D (moderate-high seismic):
- Lap lengths: 1.5-2.0× ld
- Tighter spacing (8"-12")
- Confinement steel at joints
- AI adds automatically!

SDC E-F (very high seismic):
- Special moment frame detailing
- Structural engineer review required
- AI flags for engineering input

Integration¶

BIM Coordination:

dr_dlg ? BIM model update
  ?
Adjacent panels detected
  ?
Auto-coordination triggered
  ?
Clash detection run
  ?
Fabrication details generated
  ?
Field installation sequence created

Best Practices (v7.0)¶

Use AI Features:

? Let AI calculate optimal spacing
? Accept AI lap length recommendations
? Use auto-coordination (prevents errors)
? Review load path visualization

Seismic Design:

? Always check seismic zone
? Follow AI special detailing
? Verify lap lengths in high seismic
? Add confinement steel as recommended

Coordination:

? Configure both panels together
? Verify positions match exactly
? Check 3D model for conflicts
? Update if panel changes

Enhancement Status: ? v7.0 ENHANCED [6/38]

End of Document