How to Handle the Thickness of GRC Components at Corner Positions? — Stress Concentration Control and Detailing Optimization Techniques

Thickness treatment at corners of GRC components is a key technology for preventing stress-concentration cracking, and it needs to be addressed comprehensively through local thickening, chamfer design, and reinforcement optimization. Based on finite element analysis and practical engineering experience, Qinglong Group holds that the thickness at corners should be increased by 20%-30% compared with flat areas, with a chamfer radius ≥15mm; through these measures, the stress concentration factor is reduced below 1.5, significantly improving component reliability.

Stress analysis guides thickness design. Corners are prone to stress concentration, with maximum stress reaching 2-3 times the average stress. In a Shenzhen project, Qinglong Group increased the corner thickness from 15mm to 20mm through simulation analysis, reducing the stress concentration factor from 2.8 to 1.6. Chamfer design is important: stress concentration at sharp corners is significant, and proper chamfering effectively disperses stress. Reinforcement strengthening involves densifying the steel mesh at corners to improve crack resistance. These design measures improve mechanical performance.

Production processes ensure design implementation. Precise mold making ensures uniform thickness. Dense pouring and vibration avoids voids at corners. Qinglong Group adopts a specialized vibration process to ensure corner compactness. Proper curing prevents early cracking. Scientific treatment of corner thickness enhances the overall quality of components.