PSI - Issue 11

Sonia Boschi et al. / Procedia Structural Integrity 11 (2018) 169–176 Author name / Structural Integrity Procedia 00 (2018) 000–000

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As regards San Nicolao Church, cross vaults cover both the main and the lateral naves, with spans of about 600×395 cm and 310×395 cm (Fig. 4b), respectively. An essay on the central nave have shown that the vault is 16 cm thick and without infill. The slab package is sustained through four wooden sleepers with longitudinal development that rest on the extrados of the vault. The majority of first and second floors’ slabs are made by wooden structure (double warped beams - such as Fig. 5a), or I beams and hollow tiles, with different types of steel principal structure (Fig. 5b). At the roof level, some spaces are covered by ceiling, other roofs are visible, mainly constitute of wooden elements, with trusses or horizontal beams (Fig. 5c). The state of conservation of the horizontal elements is generally poor, with the exception of some renovated portions of the roof. All the foregoing information on the vertical and horizontal structural elements are summarized on Fig. 6.

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Fig. 3. kindergarten’s vault: (a) structural scheme; (b) filling space and wooden slab.

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Fig.4. type of vaults at the ground floor: (a) barrel vault with lunettes; (b) cross vaults of the Church; (c) cross vaults of the cloister.

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Fig.5. type of horizontal elements of the upper floors. (a) wooden double-order beam structure; (b) I beam and hollow tiles (in evidence the I beam without plaster); (c) wooden truss roof structure.