Custom Catalog & Components
Bent Bars & Custom Stirrups
Pre-bent L-bars, U-bars, circular hoops, and shear stirrups manufactured and thermal-cured inside our plant.
Factory Pre-Bending.
Why structural composite bends must be formed and cured inside a controlled environment.
Formed
Before Resin Curing
Glass fibers are wrapped around mandrels and heat-cured while wet. Once the epoxy matrix cures, the shape is set and cannot be bent or straightened.
150+
MPa Shear Strength
Delivers high transverse shear strength, satisfying standard requirements for column ties and beam shear reinforcement.
Custom
Made as per Drawings
Bends, loops, and custom shapes matching structural schedules are engineered precisely to specifications.
3×
Min Bend Radius
Bends require an inside radius of three times the rebar diameter (3d) to maintain fiber integrity.
100%
Strength Retention in Bends
Factory thermal-curing preserves fiber continuity, preventing micro-stress fractures commonly caused by site bending.
Standard Bent Shapes.
We manufacture standard bent configurations matching structural drawings.
L-Shape Corner Bars
Standard 90-degree L-bars used for anchoring corner columns, retaining wall bases, and boundary wall connections, matching traditional rebar bends.
U-Shape Anchor Bars
Pre-cured U-bars used for slab edges, beam terminations, and anchoring reinforcement cages inside heavy concrete block structures.
Rectangular Stirrups & Links
Designed for shear reinforcement in concrete beams and columns. Provides high confinement pressure around longitudinal bars.
Circular Hoops & Spirals
Perfect for reinforcing round concrete piles, bridge columns, and water pipe structures. Cured continuously for high circular tension.
Z-Shape & Offset Bars
Used to step-adjust reinforcement height in overlapping slab levels or footing foundations, matching structural offsets.
Custom Component Geometry
Submit custom structural component designs. Our factory forms custom shapes, stirrups, and multi-axis bends to support unique project profiles.
Factory Catalog
Pre-Bent GFRP Rebar & Stirrups
GFRP Bending Rules vs Steel
Bending Parameter
GFRP Rebar
Steel Rebar (Fe 500)
Bending Location
Factory only
(Thermal-cured during forming)
On-site or bar-bending yard
Field Re-bending / Straightening
Strictly prohibited
(damages fibers)
Possible
(within limits)
Minimum Bend Diameter
3 times bar diameter
(3d)
2 to 2.5 times bar diameter
(2d)
Micro-fracture Risk during bend
Zero
(epoxy cures around preset bend)
Moderate
(cold-bending creates stress cracks)
Delivery condition
Delivered pre-bent and ready to install
Requires on-site cutting and manual bending
Bent Bars FAQ.
Can we heat and bend GFRP rebar on site?
No. GFRP is a thermoset polymer composite. Heating it on site breaks down the polymer chains, destroying its tensile strength. Bending it cold will shatter the glass fibers. All bent bars must be formed in our factory during manufacturing.
What is the lead time for custom shape GFRP stirrups?
Lead time depends on order volume and configuration complexity. Generally, custom shape profiles add 5 to 7 days to the production cycle, as specific bending mandrels are prepared for forming the wet fibers.
How do I submit draw configurations for ordering?
You can send standard bar bending schedules (BBS), CAD drawings, or dimension sheets to our sales desk. Our engineering team reviews the bends to confirm minimum bend radius parameters before manufacturing.