Comfort Evaluation of Large-Scale Prefabricated Steel-Framed Composite Panels

With the development of modern building floor structures towards lighteweight， large-span， and prefabricated construction， the comfort of floor systems has become increasingly prominent. To evaluate the comfort performance of a novel prefabricated steel-framed composite panel， a periodic dynamic loading test was conducted using an eccentric vibration exciter based on the resonance principle. Dynamic characteristics， including natural frequency， peak acceleration， and damping ratio， were measured for the panel in both undamaged and damaged states. The experimental results showed that the comfort level of the panel met the requirements of relevant specifications. Finally， a finite element model was established to analyze the panel’s vibration behavior. The calculated natural frequencies from the model showed good agreement with the measured values， providing a basis and reference for the promotion and application of this composite panel.