SLIDE 1 Urban Habitat Constructions under Catastrophic Events
FINAL CONFERENCE. Naples, 16th- 18th September 2010
Chair of the Action: Federico Mazzolani, IT, fmm@unina.it COST Science Officer: Thierry Goger, tgoger@cost.esf.org
Mediterranean University of Reggio Calabria, P.A.U Department, Italy
“ Federico II” University, D.I.S.T. Department, Napoli, Italy
The solid springer rule – behavior under dynamic stress Study case : The Castle of Gagliano Aterno (AQ)
SLIDE 2
Abruzzo L’Aquila area Gagliano Aterno village Gagliano Aterno (Aq) Castle Italy Gagliano Aterno (Aq) Castle view
Urban Habitat Constructions underCatastrophic Events FINAL CONFERENCE. Naples,
SLIDE 3
Gagliano Aterno’s Castle: 6th April 2009 – L’Aquila Earthquake
L’Aquila Gagliano Aterno L’Aquila Epicentre – L’Aquila record The Catastrophic Event of 6th April 2009 L'Aquila Earthquake - hour : 03:32
Urban Habitat Constructions underCatastrophic Events FINAL CONFERENCE. Naples,
SLIDE 4
Gagliano Aterno (Aq) the Castle
Plane section : second floor Northern front Gagliano Aterno’s Castle: Geometrical features Urban Habitat Constructions underCatastrophic Events FINAL CONFERENCE. Naples,
SLIDE 5 1st Phase: the oldest masonry elements - part of the original plan that arrived intact until now 2nd Phase: 600‘ It became an house-castle - was introduced the double open gallery the double
gallery
Gagliano Aterno’s Castle: Typological reading Urban Habitat Constructions underCatastrophic Events FINAL CONFERENCE. Naples,
SLIDE 6
Gagliano Aterno’s Castle: Typological reading
Double open gallery: first floor cross vaults sequence Double open gallery: ground floor barrel vaults sequence
Urban Habitat Constructions underCatastrophic Events FINAL CONFERENCE. Naples,
SLIDE 7 3th Phase : 1800 – early part of 1900‘ s
We have:
- the replacement of some masonry covering structures with wooden one, in both levels
- the construction of some pavilion vaults, in bricks, at the first floor
Rebuilding area Building area - new covering elements
Gagliano Aterno’s Castle: Typological reading Urban Habitat Constructions underCatastrophic Events FINAL CONFERENCE. Naples,
SLIDE 8
Gagliano Aterno’s Castle: Typological reading
Double open gallery: first floor wall painted and old cracks view Double open gallery: first floor Wooden structures
Detail 1 Detail 1
Urban Habitat Constructions underCatastrophic Events FINAL CONFERENCE. Naples,
SLIDE 9 the double open gallery
2nd Phase scheme
damaged area ground floor – plane section with cracks
Photo: barrel vaults and façade
- f the open gallery - distinction
Gagliano Aterno’s Castle: Damage Analysis Urban Habitat Constructions underCatastrophic Events FINAL CONFERENCE. Naples,
SLIDE 10
Rebuilding area Building area - new covering elements
First floor – plane view with cracks
3th Phase scheme
damaged area damaged area
Photo: cross vault damage springer level Gagliano Aterno’s Castle: Damage Analysis Urban Habitat Constructions underCatastrophic Events FINAL CONFERENCE. Naples,
SLIDE 11 Gagliano Aterno’s Castle: Damage Analysis Area investigated
We have two problems:
south-west front of the double open gallery
- the hinges development
- n cross vaults lineout
Double open gallery – first floor photo
Urban Habitat Constructions underCatastrophic Events FINAL CONFERENCE. Naples,
SLIDE 12 Gagliano Aterno’s Castle: Damage Analysis
First problem Crack detail 2 Crack detail 1 Second problem crack: - duo to front double
- pen gallery disconnection
crack: - duo to cross vaults ending disconnection
Urban Habitat Constructions underCatastrophic Events FINAL CONFERENCE. Naples,
SLIDE 13 Gagliano Aterno’s Castle: Damage Analysis
First problem - analyses Traditional Repair Different seismic devices
- Metallic tie-rod
- Wooden tie with wooden anchor
1 2
Urban Habitat Constructions underCatastrophic Events FINAL CONFERENCE. Naples,
SLIDE 14
Gagliano Aterno’s Castle: Damage Analysis
Second problem - analyses Different behavior under dynamic condition for one side to the other one Detail 3 Detail 3 solid springer frontal view at extrados level solid springer lateral view
Urban Habitat Constructions underCatastrophic Events FINAL CONFERENCE. Naples,
SLIDE 15
Gagliano Aterno’s Castle: Strategy of intervention
Area subject to solid springer repair Second problem - repair
Old part New part
Solid springer + double-arc settled on the extrados of the vaults at the cross between them
Urban Habitat Constructions underCatastrophic Events FINAL CONFERENCE. Naples,
SLIDE 16
«[...] they laterally inserted bricks here and there, with ends connected as comb. This setting suggests the image of right and left hand's fingers tightening one another [...]» «[...] inserivano qua e là dei mattoni con le estremità collegate in forma di pettine, quasi che stringessimo le dita della destra con quelle della sinistra.[...]» (L.B. Alberti, De re aedificatoria - XV) Thank you for your attention
Gagliano Aterno’s Castle: the end Urban Habitat Constructions underCatastrophic Events FINAL CONFERENCE. Naples,
