How to Ensure Structural Stability of Large-Span GRC Shapes? Large-Span GRC Structure Technology

Large-span GRC shapes ensure stability through four aspects: increasing panel thickness, setting stiffening ribs, optimizing supports, and controlling deformation. When the span is >4m, panel thickness is ≥25mm, longitudinal ribs are set (height ≥100mm), support spacing is ≤1.5m, and deformation is controlled to ≤L/250. Through finite element analysis optimization, an 8m span without intermediate supports can be achieved.

Specific technical parameters: panel thickness selected as 1/160–1/200 of the span, stiffening rib spacing ≤600mm, support system stiffness ≥100kN/mm. For a lobby ceiling with a 6m span, optimized design achieved a thickness of only 30mm, with deflection under self-weight ≤15mm, meeting usage requirements. Qinglong GRC large-span technology achieves the unity of spatial effect and structural safety.

Panel Thickness Determination Principles

Initially determined as 1/160–1/200 of the span and adjusted through calculation. Consider load magnitude and appropriately increase thickness. Optimize thickness distribution to reduce self-weight.

Stiffening Rib Design

Spacing ≤600mm, height ≥100mm. Reliably connected to panels to form a whole. Optimize rib shapes to improve efficiency.

Support System Design

Support spacing ≤1.5m, stiffness ≥100kN/mm. Set adjustable supports to eliminate errors. Consider temperature deformation and install sliding bearings.

Deformation Control Measures

Deflection limit ≤L/250, with ≤L/300 for critical areas. Preset camber to offset self-weight deformation. Real-time monitoring to ensure safety.

Large spans require specialized design. With Qinglong GRC technical assurance, grand spatial visions are realized.