Bridge over the Ombrone River

Erection design of a cycle-pedestrian on the river Ombrone.

Category: Erections
Services: Final Design
Period: June 2014 – October 2014
Client: Bit S.p.a.
Amount: 1.399.601,87 € (Categories IXb, IXc, VIa)

The final design of a steel arched cycle-pedestrian walkway. The deck is made with two lateral beams, supported by the tubular arches by means of a suspension system, with hangers converging towards the center.

The final design of a steel arched cycle-pedestrian walkway. The deck is made with two lateral beams, supported by the tubular arches by means of a suspension system, with hangers converging towards the center.

The main deck beams, made with a C-shaped cross section composed of bent metal sheets by welding, are connected with metal crosspieces in a double T section of variable height, tapered at the connection to the chain beam and arranged at the pitch of the hangers, i.e. every 2 m.

The main deck beams, made with a C-shaped cross section composed of bent metal sheets by welding, are connected with metal crosspieces in a double T section of variable height, tapered at the connection to the chain beam and arranged at the pitch of the hangers, i.e. every 2 m.

The hangers are made with full locked coil ropes with a theoretical diameter of 20 mm connected to the deck with an adjustable fork terminal and to the arch with a fixed fork terminal.

The hangers are made with full locked coil ropes with a theoretical diameter of 20 mm connected to the deck with an adjustable fork terminal and to the arch with a fixed fork terminal.

The decking is made with a 12 cm thick corrugated sheet slab resisting in the longitudinal direction between two transverse beams.

The decking is made with a 12 cm thick corrugated sheet slab resisting in the longitudinal direction between two transverse beams.

The main geometric features of the work are:
• Walkway span approx.72 m
• Height of the arches about 15.00 m
• Effective deck width m 3.50

The main geometric features of the work are:
• Walkway span approx.72 m
• Height of the arches about 15.00 m
• Effective deck width m 3.50

17 March 2021

Bonneville Viaduct Mont Blanc Motorway

Erection design.

Category: Erections
Services: Final Design
Period: October 2018– November 2019
Client: BIT spa – Mont Blanc Motorway and Tunnel Company

The deck was divided into coupled beams (BiPoutres), pre-assembled in the workshop, which were then transported to an area close to the final site, assembled and placed in geometry on temporary supports. By means of trolleys, the BiPoutres were moved to the foot of the work, to then be lifted and positioned in their final configuration by cranes. Particular attention was paid to checking the stability during the lifting, laying and casting of the deck.

The deck was divided into coupled beams (BiPoutres), pre-assembled in the workshop, which were then transported to an area close to the final site, assembled and placed in geometry on temporary supports. By means of trolleys, the BiPoutres were moved to the foot of the work, to then be lifted and positioned in their final configuration by cranes. Particular attention was paid to checking the stability during the lifting, laying and casting of the deck.

To ensure the rotations of the deck during the casting phase, it was necessary to provide provisional supports to be replaced when the casting is hardened with the definitive supports. Interference with the highway has been reduced to a minimum: the assembly operations were completed in just two nighttime interruptions granted by the highway manager.

To ensure the rotations of the deck during the casting phase, it was necessary to provide provisional supports to be replaced when the casting is hardened with the definitive supports. Interference with the highway has been reduced to a minimum: the assembly operations were completed in just two nighttime interruptions granted by the highway manager.

17 March 2021

Cité Musicale

Assembly of the metal structures for the roof of the auditorium

Category: Erections
Services: Final Design
Period: January 2015 – July 2015
Client: Cordioli S.p.a. Bouygues Batiment
Value: approximately €1,200,000.00 ( Category IXb )

Final design of the assembly of the metal structures of the auditorium roof, including the study of the effects of the assembly sequence on the assembly structures and the study of the assembly equipment with particular attention to the temporary piers to be used to support the trussed beams, the transverse temporary retainers and longitudinal elements and the elements for distributing the loads at the base of the temporary towers.

Final design of the assembly of the metal structures of the auditorium roof, including the study of the effects of the assembly sequence on the assembly structures and the study of the assembly equipment with particular attention to the temporary piers to be used to support the trussed beams, the transverse temporary retainers and longitudinal elements and the elements for distributing the loads at the base of the temporary towers.

Study of the storage and assembly and lifting sequence of elementary segments of lattice beams.

Study of the storage and assembly and lifting sequence of elementary segments of lattice beams.

17 March 2021

Bologna exhibitions – New Pavilion 37

Erection design of the fixed and moving part of the cover.

Category: Erections
Services: Final Design
Period: November 2019 – May 2020
Client: Cimolai s.p.a.

The roof of Pavilion 37 has plan dimensions of 80.8 m x 184 m and height of 23m and is entirely made with spatial lattices in metal carpentry.

The roof of Pavilion 37 has plan dimensions of 80.8 m x 184 m and height of 23m and is entirely made with spatial lattices in metal carpentry.

The fixed roof is made up transversely of main trusses, trusses with variable height from 2.8 m to 7 m span 72.8 m at a center distance of 36 m, by longitudinal secondary trusses.

The fixed roof is made up transversely of main trusses, trusses with variable height from 2.8 m to 7 m span 72.8 m at a center distance of 36 m, by longitudinal secondary trusses.

The mobile roof covers the central portion and consists of two spatial trussed structures with plan dimensions of 18×180 m which slide on the fixed roof by means of roller conveyors resting on runways fixed on the main trusses. First, the main trusses were assembled near the final site and raised by tandem lift, and then the secondary trusses.

The mobile roof covers the central portion and consists of two spatial trussed structures with plan dimensions of 18×180 m which slide on the fixed roof by means of roller conveyors resting on runways fixed on the main trusses. First, the main trusses were assembled near the final site and raised by tandem lift, and then the secondary trusses.

Once the fixed cover was completed, the semi-mobile cover, divided into 5 segments, was lifted by crane and moved to its final position by means of a strand jack using final rollers and rails. To restore the congruence of the mobile cover, appropriate constraints were applied by means of jacks on supporting alignments.

Once the fixed cover was completed, the semi-mobile cover, divided into 5 segments, was lifted by crane and moved to its final position by means of a strand jack using final rollers and rails. To restore the congruence of the mobile cover, appropriate constraints were applied by means of jacks on supporting alignments.

17 March 2021

Sydney Gateway Bridges

Optimization of erection and launching phases.

Category: Tenders
Services: Technical assistance during tender phase
Period: March 2020
Customer: Freyssinet international

The Sidney Gateway project provides for the improvement road and rail links for sustainability from Sydney airport terminals .
The object of the project was assistance with preparation of the technical tender file relative to the bridges SB21 (A & B) and SB51 (A & B).
The SB51 bridges have a bowstring arch structure on a single 105m-span with box – section main beams, I-section diaphragms and a longitudinally oriented concrete slab. The bridges will be entirely assembled on site and then launched by means of strand-jacks, sliding supports and a launching nose.
The SB21 bridges wave a deck made of box-section beams in a mixed steel-concrete section. The beams are connected by means of trussed diaphragms. The scheme static is that of a continuous beam over several supports on spans from 30 to 50m. The first spans will be launched by means of strand jack, while the final part will be erected by means of cranes.

16 March 2021

Bridge over the river Ombrone River

Design of a cycle-pedestrian over the river Ombrone.

Category: Tenders
Services: Final design – Tender won
Period: June 2014 – October 2014
Client: Bit S.p.a.
Amount: 1.399.601,87 € (Categories IXb, IXc, VIa)

The steel arched pedestrian bridge over the river Ombrone consists of a deck with 2 main beams connected to the arch by a series of hangers converging to the center. The main beams have a welded C- section are connected by I-section diaphragms 2 m-spaced.
The hangers are realized with from full locked coils with a diameter of 20 mm connected to bridge by an adjustable element, the other end is fixed. The deck is realized with a mixed slab made of corrugated sheet with a concrete casting.

The main geometrical features are :
• Deck Total Span . 72 m
• Height of the arches about 15.00m
• Effective width of the deck 3.50m

The steel arched pedestrian bridge over the river Ombrone consists of a deck with 2 main beams connected to the arch by a series of hangers converging to the center. The main beams have a welded C- section are connected by I-section diaphragms 2 m-spaced.
The hangers are realized with from full locked coils with a diameter of 20 mm connected to bridge by an adjustable element, the other end is fixed. The deck is realized with a mixed slab made of corrugated sheet with a concrete casting.

The main geometrical features are :
• Deck Total Span . 72 m
• Height of the arches about 15.00m
• Effective width of the deck 3.50m

16 March 2021

Cycle and pedestrian bridge in Ponte a Egola

Project fifth project classified in the final phase of the design contest.

Category: Tenders
Services: Pre-project
Period: June 2014 – October 2014
Client: City Council of San Miniato
Amount: approximately €270,000.00

Construction of a new cycle-pedestrian bridge over the river Egola in the village of Ponte a Egola.

Construction of a new cycle-pedestrian bridge over the river Egola in the village of Ponte a Egola.

Design of beam-through-bridge and the cycle-pedestrian path connected to the existing road aimed in particular at creating a connection with the town of Molino d’Egola. The static scheme is that of a simply-supported beam with a 37.70 m.

Design of beam-through-bridge and the cycle-pedestrian path connected to the existing road aimed in particular at creating a connection with the town of Molino d’Egola. The static scheme is that of a simply-supported beam with a 37.70 m.

16 March 2021

Bridge over the river Serchio

Placed second to the international competition of ideas.

Category: Tenders
Services: Pre-design
Period: June 2013 – July 2014
Client: Province of Lucca
Amount: approximately €15,000,000.00

Construction of a new infrastructure to cross the river Serchio, located near to the urban center of Lucca, connecting the route SS 12 “dell’Abetone e del Brennero” and the route SP 1 “Francigena”.

Construction of a new infrastructure to cross the river Serchio, located near to the urban center of Lucca, connecting the route SS 12 “dell’Abetone e del Brennero” and the route SP 1 “Francigena”.

The main structure consists of a through-arch bridge of a total span 220 m with a central span of 160 m and side spans sides of 35 + 35 m and two 4 – span access viaducts (spans 30+ 40×2 + 30m).

The main structure consists of a through-arch bridge of a total span 220 m with a central span of 160 m and side spans sides of 35 + 35 m and two 4 – span access viaducts (spans 30+ 40×2 + 30m).

To complete the intervention , two embankments are redisigned.

To complete the intervention , two embankments are redisigned.

16 March 2021

Arch bridge over the river Adige and viaducts over the highway A22

Final detailed design, erection and launching design.

Category: Tenders
Services: Detailed design – tender won
Period: October 2019
Client: Bit s.p.a.
Amount: € 3’142’407 (S.04)

The bowstring bridge over the river Adige consists of a single 81.4m span and supports a 6.5 m wide carriageway , a pedestrian walkway and cycle path. The box-section deck consists of an orthotropic plate on top and one eccentric arch inclined 20° from the vertical. The arch has an irregular pentagonal section.

The bowstring bridge over the river Adige consists of a single 81.4m span and supports a 6.5 m wide carriageway , a pedestrian walkway and cycle path. The box-section deck consists of an orthotropic plate on top and one eccentric arch inclined 20° from the vertical. The arch has an irregular pentagonal section.

The arch-deck connection is made by means of hangers in welded H-section profiles with variable height. The deck consists of a multicellular box multicellular with 5 webs with a height maximum of 1.6 m and diaphragms spaced by 3.3m. The cycle path and the footbridge, with an effective width of 2.8 m and 2.5 m, are supported by I-section cantilever with variable height.

The arch-deck connection is made by means of hangers in welded H-section profiles with variable height. The deck consists of a multicellular box multicellular with 5 webs with a height maximum of 1.6 m and diaphragms spaced by 3.3m. The cycle path and the footbridge, with an effective width of 2.8 m and 2.5 m, are supported by I-section cantilever with variable height.

The viaduct over the highway A22 has a single 46m span with a bowstring scheme. Except the dimensions , the work present the memes features than the bridge over the Adige.

The viaduct over the highway A22 has a single 46m span with a bowstring scheme. Except the dimensions , the work present the memes features than the bridge over the Adige.

16 March 2021

Bridges on the rivers Oglio and Serio

Segment prefabrication tools for prestressed concrete road deck produced by the Dywidag system.

Category: Special Equipment
Activity: Final and Construction design
Period: April 2009 – September 2009
Client: SPIC s.r.l.
Value: €960,000.00 (Category IX b)

Metal structures for the prefabrication of prestressed concrete segments erected by cantilever system.

Metal structures for the prefabrication of prestressed concrete segments erected by cantilever system.

Studies of the metal structures of the prefabrication tools (fixed part and mobile part) and of the trolleys for moving the segments. Studies of metal formwork.

Studies of the metal structures of the prefabrication tools (fixed part and mobile part) and of the trolleys for moving the segments. Studies of metal formwork.

16 March 2021