Structural restoration intervention in Reno Centese, province of Ferrara
Structural restoration intervention in Reno Centese, province of Ferrara
Architettura Strutturale has carried out a structural restoration intervention for the Church of Sant’Anna in Reno Centese in the province of Ferrara.
The church of Sant’Anna, located in the center of Reno Centese, is part of a complex that also includes the rectory, annexed to it, and the bell tower.
The church constitutes a minor architecture and consists of a longitudinal layout that develops through: central nave, two aisles on each side, internal semicircular apse with basin and canopy, transept and a side chapel with a domed cruise.
The main facade of sober neoclassical taste has a layout consisting of two registers framed by pilasters and surmounted by a simple tympanum.
From the subdivision of the internal division into five naves can be identified: the central part, surrounded by pilasters, corresponds to the central nave and the wings, which identify the side aisles, are connected to the latter with masonry volutes.
Following the seismic events of May 2012, the church of S. Anna was damaged, showing a serious crack pattern in the internal parts and on the external elevations.
In particular, the following damages and mechanisms generated are identified (Guidelines for the assessment and reduction of the seismic risk of cultural heritage):
- Facade overturning
- Gable overturning
- Lesions on the external elevations and on the internal masonry
- Internal detachments
- Lesions on the arches of the central nave, of the side aisles
- Key lesions in the arches of the presbytery
- Key lesion in the arch of the votive chapel
- Lesions on the barrel vaults of the side aisles and of the rib vaults of the side aisles
- Lesions on the arched vaults of the central nave, the presbytery and the apse
- Lesions on the dome of the votive chapel
- Cracks on cornices and stuccoes
The Civil Protection, following the first inspections carried out immediately after the earthquake, arranged for the execution of pipe shoring and joints on the three most damaged arches: the arch of the presbytery, the entrance arch to the votive chapel and an arch of the aisle.
Having identified the weak points and possible kinematics, analyzing the crack pattern that has manifested itself on the church structures, the planned interventions that aim to compensate for the effect of degradation and damage caused by the earthquake of May 2012 are the following:
- Insertion of transverse tie rods
- Consolidation of barrel vaults and rib vaults in sheet bricks with basalt fiber mesh
- Consolidation of the arch between the presbytery and the central nave through the scuci-cuci technique
- Consolidation of the dome and barrel vaults by re-filing the joints and inserting stainless steel wedges
- Consolidation of the arellato vaults through linen fiber mesh cords
- Consolidation of the heavily damaged masonry using the scuci-cuci technique
- Consolidation of the masonry by injections of lime-based mortar
- Consolidation of the frames by inserting fixing bars and grouting the lesions
- Replacement of the façade anti-rollover device
- Stiffening and bracing of the roof pitches of the church
- Improvement of the connections between the various wooden roofing elements
- Achievements Tag: Ferrara
