How to Handle the Thickness of GRC Components at Corner Positions? GRC Corner Reinforcement Design Specifications

The thickness of GRC component corner areas should be increased by 20%-30% compared to flat areas, with a fillet transition of R≥15mm. Main reinforcement should be continuously bent, and stirrups densified to a spacing of ≤80mm. These measures increase corner impact strength by 50% and prevent stress concentration cracking.

Finite element analysis shows that the stress concentration factor at right-angle corners reaches 3.5, while R15 fillets reduce it to 1.8. In one project, the damage rate of 90° right-angle corner components during the installation stage reached 12%; after switching to R20 fillets and increasing thickness to 1.2 times, the damage rate dropped to 0.5%. Impact tests show that reinforced corners can withstand 5J impact without damage.

Thickness Reinforcement Standards

Corner thickness increased by 20%-30%; these reinforcements improve load-bearing capacity.

Fillet Transition Requirements

Internal fillets R≥15mm, external fillets R≥20mm; these transitions reduce stress concentration.

Reinforcement Enhancement Measures

Main reinforcement continuously bent, stirrup spacing ≤80mm; these measures enhance overall integrity.

Mold Design Key Points

Corner draft angle ≥3°; these key points facilitate demolding.

Corner areas require special reinforcement. Qinglong GRC standard design ensures safety and reliability.