Curved Curtain Wall Technical Downloads
Complete technical documentation for Hanart curved curtain wall systems — radius geometry templates, cold and hot bending guides, curved glass specifications, and structural analysis examples.
Curved Curtain Wall System
Hanart curved curtain wall systems bring architectural vision to life with sweeping curves, barrel vaults, and sculptural facades. From gentle radius to full circles, our engineering delivers precise geometry, optimized fabrication, and performance equivalent to flat systems.
Faceted & Continuous Curves
Depending on radius, we provide faceted systems for gentle curves or cold-bent glass for tight radii. Continuous curved mullions achieve true curved surfaces for landmark designs.
Precision Fabrication
Curved components are CNC-machined and die-pressed to tight tolerances (±1.5mm for mullion arc, ±2mm for glass curvature), ensuring panels fit perfectly on site.
Structural Verification
Every curved facade receives finite element analysis covering glass bending stress, frame stability, cold-bending limitations, and wind/snow load distribution on the curved surface.
Download Library
| Document | Format | Size | Description | Download |
|---|---|---|---|---|
| System Specification — Curved Curtain Wall | 2.9 MB | Complete specification: radius limitations, frame bending, glass cold/hot bending, tolerances, and finish requirements. 46 pages. | Request Download | |
| Radius Geometry Templates | DWG / ZIP | 5.4 MB | Standard radius templates: 3m–100m radii for faceted and continuous systems, including parametric geometry worksheets for custom radius definition. AutoCAD 2018 compatible. | Request Download |
| Cold-Bending vs Hot-Bending Guide | 2.5 MB | Decision guide: when cold-bending glass is structurally acceptable, when hot-bending (sagged) is required, strength implications, optical quality differences, and cost impact. | Request Download | |
| Revit Family — Curved Panel (Parametric) | RFA | 3.3 MB | Parametric curved panel family: adjustable radius, chord length, arch angle, and glass thickness. Revit 2020–2026 compatible. | Request Download |
| Curved Glass Specification Standards | 1.7 MB | Curved glass specifications per ASTM C1048/C1464: curvature accuracy, edge quality, tempering requirements, and visual quality acceptance criteria. | Request Download | |
| Structural Analysis Examples | 3.9 MB | FEM analysis case studies: wind load distribution on curved surfaces, cold-bent glass stress verification, frame stability, and connection forces. Includes numerical examples. | Request Download | |
| Fabrication Tolerance Manual | 1.6 MB | Fabrication and installation tolerances: mullion arc tolerance, glass curvature tolerance, panel alignment, and field adjustment procedures. | Request Download | |
| Cold-Bending Application Case Studies | 2.8 MB | Documented cold-bending projects: panel size limitations, interlayer types, edge stress verification, and lessons learned from completed installations. | Request Download | |
| Installation & Handling Manual | 6.6 MB | Special handling and installation procedures for curved panels: transportation cradles, lifting frames, alignment tools, and glazing procedures. | Request Download |
Standard Performance Characteristics
Performance data for Hanart curved curtain wall systems (curvature-dependent; representative values).
| Performance Parameter | Test Standard | Result | Rating |
|---|---|---|---|
| Structural Load (Curved Surface) | FEM verified per ASCE 7 | Design wind loads to 6.0 kPa with curvature redistribution | Verified |
| Cold-Bend Radius Limitation | In-house FEA + testing | Minimum radius ≥ 350× glass thickness (monolithic), ≥ 500× (IGU) | Verified |
| Air Infiltration | ASTM E283 | 0.06–0.10 cfm/ft² @ 6.24 psf | Class AW / CW |
| Water Penetration | ASTM E331 | Zero penetration @ 12–15 psf | Pass |
| Glass Surface Accuracy (Cold-Bent) | ASTM C1464 | ±3mm from theoretical arc | High Precision |
| Thermal Transmittance | NFRC 100 / ISO 10211 | U-value 1.2–1.7 W/m²K | High Performance |
| Seismic Performance | ICC-ES AC156 | Passed at Sds 1.2g | Seismic Verified |
Frequently Asked Questions
What is the minimum radius for cold-bent glass?
For monolithic glass, our minimum cold-bend radius is 350× the glass thickness (e.g., 10mm glass = 3.5m minimum radius). For insulated glazing units, the minimum is 500× glass thickness. Below these limits, hot-bending (sagged glass) is required. Every project receives individual FEM verification.
What is the difference between faceted and continuous curved systems?
Faceted systems approximate a curve using straight panels joined at small angles — suitable for large radii, lower cost, and simpler fabrication. Continuous systems use curved mullions and bent glass to create a true continuous curved surface — required for tight radii and landmark aesthetics. Cost for continuous curves is approximately 2–3× faceted systems.
Can you produce custom radii for my design?
Yes — radius templates range from 2.5m to 100m+ in both convex and concave orientations. Custom radii are engineered with parametric geometry templates, and individual panels are CNC-fabricated to the calculated arcs with ±2mm accuracy.
How is structural performance verified for curved glass?
Curved glass is analyzed using finite element modeling that accounts for: membrane action of the curvature, bending stress under wind load, cold-bending residual stress, glass edge distance, and interlayer effects for laminated glass. We provide a full structural verification report for tender and engineering approval.
Does curvature affect thermal or acoustic performance?
Only marginally. U-values change by less than 5% for typical radii. Acoustic performance is maintained per the glass configuration rather than the curvature. The significant design difference is structural redistribution of loads and fabrication tolerance control — both covered in our engineering package.
Need Project-Specific Technical Support?
Our engineering team provides geometric definition, FEM structural analysis, and fabrication planning for curved facade projects. Contact us for technical support.