Seismic Design Considerations for Sandwich Panel Buildings > 자유게시판

In structures utilizing sandwich panel systems engineers must account for seismic forces to ensure structural safety and occupant protection during earthquakes. These panels feature dual metal facings bonded to a low-density thermal core are popular for their speed of installation and thermal efficiency. Yet their limited rigidity combined with elevated mass-to-strength characteristics create distinct vulnerabilities in earthquake-prone regions.

The integrity of the panel-to-frame anchorage system is paramount. These connections must be designed to accommodate in-plane and out-of-plane movements without causing panel failure or detachment. Overly stiff connections can induce stress concentrations, resulting in core fracture or face sheet separation. Flexible connections that allow controlled movement while maintaining lateral stability are preferred.

Sandwich panels are not merely aesthetic cladding—they can be structural elements. Sandwich panels should not be treated as non-structural cladding. In many cases, they contribute to overall lateral stiffness, especially when properly anchored to beams and columns. It is essential to assess their potential role in lateral load transfer and tailor کانکس ساندویچ پانل connection details.

Close coordination between design disciplines is non-negotiable.

The choice of core material directly influences seismic response.

The thermal core’s mechanical properties vary significantly across material families.

Rigid foam cores may be more prone to crushing under high shear loads.

Rock wool cores demonstrate superior post-crack integrity and damping capacity.

Thinner skins risk wrinkling or out-of-plane collapse under dynamic loading.

Additionally, the building’s overall geometry affects seismic performance.

Elongated, high-rise structures with wide panel modules exhibit higher torsional sensitivity.

Regular, planar configurations minimize torsional coupling.

Edge stiffeners, continuous lateral ties, and robust foundation connections collectively enhance seismic resilience.

Inspection protocols are critical for sustaining long-term seismic integrity.

Even minor damage to panel connections or core integrity can compromise future performance.

Proactive monitoring programs must be implemented to detect early signs of distress.

Despite their popularity in rapid-build applications their use in seismic zones demands careful attention to connection details, material behavior, structural integration, and long-term resilience. Engineers must integrate panels as active seismic elements, not passive cladding