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Article summary:

1. Precast hollow-core concrete (HC) slabs are widely used in construction, especially in Nordic countries, due to their combination of prestressing and low self-weight which allows for long-span floors.

2. Finite element modelling is often necessary to perform a dynamic analysis of HC floors, but there are no guidelines or recommendations for accurately implementing such models.

3. Experimental and numerical results from six in-situ experiments show that an orthotropic shell model proposed by the authors gives good results for HC floors with different dimensions, but the surrounding structure should also be incorporated in the finite element model for accurate results. The influence of non-bearing internal walls on the dynamic behavior of HC floors is also discussed.

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