# SPIC s.r.l. > Dedicated solutions for big challenges --- ## Pages - [Contacts](https://www.spicsrl.com/contacts-2/): SPIC s. r. l. Legal and administrative headquarters Via Sile, 20 31033 Castelfranco Veneto (TV) T. +39 0423 460 111... - [Company](https://www.spicsrl.com/company/) - [Activities](https://www.spicsrl.com/company/activities/): A brief summary of our activity - [History](https://www.spicsrl.com/company/history/): Il nostro percorso - [Management](https://www.spicsrl.com/company/management/): Gli amministratori del gruppo - [Governance and Certifications](https://www.spicsrl.com/company/governance-and-certifications/): Le certificazioni con le quali operiamo - [Contacts](https://www.spicsrl.com/contacts/): SPIC Legal and administrative headquarters Via Sile, 20 31033 Castelfranco Veneto (TV) T. +39 0423 460 111 info@spic. it VAT... - [Home](https://www.spicsrl.com/): Dedicated solutions for big challenges --- ## References - [Deconstruction of the Tanagro viaduct - Salerno Reggio Calabria](https://www.spicsrl.com/references/deconstruction-viaduct-tanagro/): De-construction of deck and piers SPIC, following a methodology that it has studied itself, has developed the deconstruction of the... - [Deconstruction of viaducts Sfalassà, Oliveto and Angelo, Feliciusu - Salerno Reggio Calabria](https://www.spicsrl.com/references/deconstruction-viaduct-sfalassa-oliveto-and-angelo-feliciusu/): Deconstruction of prefabricated beam viaducts For the deconstruction of these viaducts in prefabricated beams consisting of 68 spans of 40... - [Deconstruction of the Farma viaduct - SS223 of Paganico - Grosseto - Siena](https://www.spicsrl.com/references/deconstruction-of-the-farma-viaduct/): De-costruzione di impalcato SPIC, seguendo una metodologia che essa stessa ha studiato, ha sviluppato la decostruzione dell’impalcato con un proprio... - [Variant of Caltagirone - Licodia Eubea](https://www.spicsrl.com/references/caltagirone/): Sicily. Functional excerpt “Caltagirone variant” Freeway Licodia Eubea – A19 PA-CT. In this context, SPIC built three viaducts in 17... - [Bellara steel plant (Algeria)](https://www.spicsrl.com/references/bellara-algeria/): SPIC carried out the assembly of the metal structures of a new steel plant. The industrial complex has a covered... - [Bridge over the Arges River](https://www.spicsrl.com/references/bridge-over-the-arges-river/): Bridge in Romania: study of the method of assembly and supply of equipment For this work SPIC developed the study... - [Viaducts Oglio and Serio - A35 BreBeMi Motorway](https://www.spicsrl.com/references/brebemi/): BreBeMi – Oglio and Serio Viaducts BreBeMi, from the initials of the three provinces concerned, Brescia, Bergamo and Milan, is... - [Bridge over the Serchio; SS12; Lucca](https://www.spicsrl.com/references/bridge-over-the-serchio/): Arch bridge in steel structure and reinforced concrete deck Construction works for the connection to the state road 12 through... - [Ponte Savena; Milan-Naples HS line Treats Bologna Florence](https://www.spicsrl.com/references/ponte-savena/): Reinforced concrete arch bridge The work consists of a concrete deck, built on site, supported by metal hangers attached to... - [Gassino Bridge](https://www.spicsrl.com/references/gassino-bridge/): Bridge over the river Po The bridge, built in a mixed structure, with lateral steel beams and upper and lower... - [Roccaprebalza viaduct - A15 Cisa motorway](https://www.spicsrl.com/references/roccaprebalza/): A realization at a high altitude The viaduct, made of a mixed structure with lateral steel beams and upper and... - [Bridge over the Po in Piacenza](https://www.spicsrl.com/references/bridge-over-the-po-in-piacenza/): A construction in record time The work is a continuous steel structure, with a reticular beam and an orthotropic slab... - [Viaduct over the Taro river - TiBre motorway (Tyrrhenian - Brenner)](https://www.spicsrl.com/references/tibre-taro/): Construction sites in parallel The work consists of two side-by-side viaducts, each approximately 2 km long, for a total of... - [Piacenza Viaduct; Milan-Naples HS line Route Milan Bologna](https://www.spicsrl.com/references/piacenza-1-2/): Project Information The Piacenza 1 and Piacenza 2 viaducts are two of the main viaducts along the Milan-Naples High Speed... - [Santhià Viaduct; Turin-Venice HS line; From Turin to Milan](https://www.spicsrl.com/references/santhia/): The main viaduct of the Turin-Milan high-speed railway line The Santhià viaduct is one of the main viaducts of the... - [Viaducts Modena, High Speed ​​Line Milan Naples; Route Milan Bologna](https://www.spicsrl.com/references/viaduct-modena/): High Speed Railway Line The “Modena Viaduct System” consists of a series of railway viaducts with a total length of... - [Viaducts in segments - East West EI Affroun - Hocenia motorway](https://www.spicsrl.com/references/cmc/): A strategic work in which SPIC played a fundamental role The “East West” highway that crosses the north of Algeria... - [Viaducts Salvia Scardina - Syracuse - Gela motorway; Sicily](https://www.spicsrl.com/references/salvia-scardina/): Span by span assembly and vacuum injections: construction speed and durability of the work Siracusa – Gela motorway; Ispica and... - [New Bridge over the Tagliamento River - Extension of the Autostrada A4](https://www.spicsrl.com/references/bridge-over-the-tagliamento-river/): Reliability and speed: the result of knowledge and organization The bridge over the Tagliamento river consists of two decks (one... - [Viaducts Volla 1 and Volla 2; HS Rome Naples line; Connection with the Mount Vesuvius line](https://www.spicsrl.com/references/viaduct-volla/): From the Detailed Design to the Realization As part of the broader contract relating to the construction of the section... - [Artificial Tunnel Coverage - Pedemontana Veneta Highway](https://www.spicsrl.com/references/sis-pedemontana-veneta/): Pedemontana Veneta highway The Pedemontana Veneta Superstrada is a road of great communication that extends for a total of 162... - [WHSD - Saint Petersburg Ring](https://www.spicsrl.com/references/whsd/): An incremental launching of 168 m of free span The access of ships from the sea to the port required,... - [Deck slabs viaducts; High-speed line Milan - Venice. Section Pozzuolo M. - Treviglio](https://www.spicsrl.com/references/treviglio/): High Speed Milan – Venice Line. Treviglio Brescia section. Execution of the structural concrete slab and of the transoms for... - [Brescia Metrobus; section Prealpino S.Eufemia](https://www.spicsrl.com/references/metrobus-brescia/): A slender, high-performance deck This viaduct represents the last stretch to the south-east of the Brescia underground and is composed... --- ## Works - [Maintenance, restoration and structural adjustments](https://www.spicsrl.com/works/maintenance-restoration-and-structural-adjustments/): Extraordinary maintenance of bridges and viaducts For the decks and piles of bridges and viaducts in reinforced concrete, prestressed concrete... - [Castings in place](https://www.spicsrl.com/works/castings-in-place/): Skills and competences SPIC has the skills, organization and equipment to develop all the activities related to the process of... - [Prefabrication in concrete](https://www.spicsrl.com/works/prefabrication-in-concrete/): In the field of prestressed reinforced concrete prefabrication SPIC performs all the activities necessary to give the complete work, starting... - [Mixed structures](https://www.spicsrl.com/works/mixed-structures/): The solution for harsh environments. An optimal solution to operate in inaccessible areas, with very high piles and difficulty in... - [Assembly and erection of steel decks](https://www.spicsrl.com/works/assembly-of-steel-decks/): A complete competence In the field of construction and assembly of steel decks, SPIC has a complete competence that goes... - [Industrial assembly](https://www.spicsrl.com/works/industrial-assembly/): Organization, personnel and means The assembly of structures and plants of large industrial structures, such as steel mills, aeronautical production... - [Deconstructions and demolitions](https://www.spicsrl.com/works/deconstructions-and-demolitions/): Disassemble, de-build and, only if necessary, demolish SPIC has all the skills, organization and means to intervene in situations where... - [Segments](https://www.spicsrl.com/works/prefabrication-in-concrete/segments/): Segmented Decks – Fast and Flexible Solution SPIC has a large number of references in the construction of segmented decks,... - [Beams](https://www.spicsrl.com/works/prefabrication-in-concrete/beams/): Decks with beams The construction of a deck, both for a bridge and for a viaduct, with a load-bearing structure... - [Box beams](https://www.spicsrl.com/works/prefabrication-in-concrete/box-beams/): Box beam decks SPIC has built many viaducts with a box beam bearing structure, in particular a large part of... --- # # Detailed Content ## Pages SPIC s. r. l. Legal and administrative headquarters Via Sile, 20 31033 Castelfranco Veneto (TV) T. +39 0423 460 111 info@spic. it VAT number 01675170243 SPIC s. r. l. - Branch Algeria 38, Coopérative El Assal - Les Mandarines 16058 Mohammadia – Alger T. +213 23 804511 F. +213 23 804510 SPIC s. r. l. - Branch Romania Spl. Nicolae Titulescu Nr. 8 – Etaj 1 300158 Timisoara - Judet Timis office. timisoara@spicsrl. it F. +40 35 6401288 --- SPIC Legal and administrative headquarters Via Sile, 20 31033 Castelfranco Veneto (TV) T. +39 0423 460 111 info@spic. it VAT number 01675170243 SPIC - Branch Algeria 38, Coopérative El Assal - Les Mandarines 16058 Mohammadia – Alger T. +213 23 804511 F. +213 23 804510 SPIC - Branch Romania Spl. Nicolae Titulescu Nr. 8 – Etaj 1 300158 Timisoara - Judet Timis office. timisoara@spicsrl. it F. +40 35 6401288 --- Dedicated solutions for big challenges --- --- ## References De-construction of deck and piers SPIC, following a methodology that it has studied itself, has developed the deconstruction of the deck with its own caravan, specially adapted to specific needs, and with its own equipment. Each part to be removed was bound to the caravan before being isolated from the rest of the deck by means of cuts. In addition to the removal of the deck, SPIC also carried out the reduction of the height of the piles and the transport, by means of trolleys on rails, of all the materials obtained from the deconstruction. --- Deconstruction of prefabricated beam viaducts For the deconstruction of these viaducts in prefabricated beams consisting of 68 spans of 40 m of span, SPIC provided, for hire, specific equipment and provided all the technical assistance and supervision of the works that the Customer has carried out following the method conceived and designed by SPIC itself. The intervention was developed for 20 spans in the access viaduct to the Sfalassà viaduct, 68 spans for the Feliciusu viaduct and 26 spans for the Oliveto and Angelo viaduct, for a total of 114 spans of 40 m span. --- De-costruzione di impalcato SPIC, seguendo una metodologia che essa stessa ha studiato, ha sviluppato la decostruzione dell'impalcato con un proprio carrovaro, appositamente adattato alle esigenze specifiche, e con proprie attrezzature. Ogni parte da rimuovere é stata vincolata al carrovaro prima di venire isolata dal resto dell'impalcato per mezzo di tagli. Oltre alla rimozione dell'impalcato SPIC ha effettuato anche la riduzione dell'altezza delle pile ed il trasporto, per mezzo di carrelli su rotaie, di tutti i materiali ottenuti dalla decostruzione. --- Sicily. Functional excerpt "Caltagirone variant" Freeway Licodia Eubea - A19 PA-CT. In this context, SPIC built three viaducts in 17 months, with a total length of 2,750 m and a total surface area of 23,200 m2. The decks consist of two lateral steel beams and a concrete slab. SPIC carried out the assembly, transport and launch of the steel structures, for a total weight of 9'450 tons, and built all the reinforced concrete slabs. For the construction, specific prefabrication and assembly plants were set up by SPIC at each viaduct.   Paradiso I viaduct, assembled in 8 and a half months with a caravan. The viaduct is 725 m long and consists of 11 spans with a maximum span of 75 m and a width of up to 15. 55 m, for a total surface area of 8,900 m2. The steel structures had a weight of 2'600 tons.   Ippolito I viaduct, assembled in 6 months with a caravan. The viaduct is 1100 m long and consists of 15 spans with a maximum span of 75 m and a width of up to 12 m, for a total area of 13,200 m2. The steel structures had a weight of 3'800 tons.   Ippolito III viaduct, built in seven months with push launch. The viaduct is 925 m long and consists of 13 spans with a maximum span of 75 m and a width of up to 12 m, for a total area of 11,100 m2. The steel structures had a weight of 3'050 tons. --- SPIC carried out the assembly of the metal structures of a new steel plant. The industrial complex has a covered area of 50,000 m2, with buildings reaching up to 60 m of altitude and spans of free span of up to 36 m. Roofing, curtain walls and coatings were also laid for a total area of 226,000 m2. SPIC carried out all these activities in 18 months, with its own organization on site, made up of about 400 people, of which 42 executives and operational managers, and with the use of its own means.   --- Bridge in Romania: study of the method of assembly and supply of equipment For this work SPIC developed the study of the assembly method and the design and supply of equipment for the incremental launching. . The small spaces and the specificity of the very light structures required a very advanced study of the method and equipment. --- BreBeMi - Oglio and Serio Viaducts   BreBeMi, from the initials of the three provinces concerned, Brescia, Bergamo and Milan, is the A35 motorway that connects the cities of Brescia and Milan with a route located further south than the A4 motorway route. Among the main works we find the Oglio and Serio viaducts functional to the ford of the rivers of the same name. The decks were made by SPIC with the technology of prefabricated segments. The Oglio viaduct consists of 11 spans, 2 of which are 90 meters long, has a total length of 694 meters while the Serio viaduct consists of 16 spans of 60 m each. The width of both is 17. 05 m + 17. 05 m. Approximately 1300 segments were prefabricated and launched for the construction. The prefabrication was carried out in Fara Olivana, near the Serio viaduct, in a metal shed. Inside the shed, served by 4 bridge cranes, the formation of the reinforcement cages, the formwork and the casting of the conjugated segments were carried out. To meet the deadlines requested by the client, we have equipped the shed with 5 formworks using the short line technology. A wheeled trolley and a 100 ton capacity gantry crane carried out the storage of the segments built in the area outside the shed. The segments were then transported to the "launch" with a wheeled trolley and in the case of Oglio, about 8 km away, with lowered trolleys using the site's road system. Using the “balanced cantilever” technology, a launching equipment carried out the assembly of the segments at height. Many crutches were launched with a second launching equipment designed and built ad hoc for the order: taking advantage of the low elevation of the deck (about 8 m), a large wheeled trolley was designed that straddles the deck in construction made it easy to lift the segments and their subsequent assembly at height.   --- Arch bridge in steel structure and reinforced concrete deck Construction works for the connection to the state road 12 through the adaptation of the provincial road 2 Ludovica for the connection of the state road 12 with Borgo Amozzano on the right bank of the Serchio. The deck is structurally composed of a continuous beam with a constant section supported by hangers attached to an arched structure in steel structure. The beams of the deck, weighing approximately 115 tons, were prefabricated in an area adjacent to the work, transported and erected by means of large-capacity mobile cranes. SPIC designed and built the formworks for the prefabrication of the beams, produced and erected the beams, mounted the arches and hangers according to an assembly procedure that SPIC itself studied. --- Reinforced concrete arch bridge The work consists of a concrete deck, built on site, supported by metal hangers attached to a reinforced concrete arch. The deck, which structurally is a continuous beam, was realised in an area next to the erection site, in three parts of about 20 m each and launched by pushing with the aid of temporary piers. SPIC carried out the assembly and launch project, the prefabrication and launch of the deck, the construction of the arches and the assembly and stringing of the hangers. --- Bridge over the river Po The bridge, built in a mixed structure, with lateral steel beams and upper and lower concrete slabs, spans the river Po, and was built on piles up to 15 m high, with spans of maximum span 92m. The deck is a continuous post-tensioned structure. The bridge was built operating on two fronts in parallel, and the duration of its construction was short, compared to the particular difficulties of the site. This construction technique, of which SPIC has great experience and ability, allows to intervene in situations of difficult access to the operational areas. The auxiliary works required to create the road system of the construction site and the accesses to it are very limited and the necessary equipments for work are not demanding, given the size and weight of the individual elements to be handled. --- A realization at a high altitude The viaduct, made of a mixed structure with lateral steel beams and upper and lower concrete slabs, has a maximum span between the piers of 125 m. The construction technique, which SPIC dominates perfectly, has allowed us to operate in a very inaccessible area and with piles up to 105 m high. The site was managed with two fronts simultaneously, with light work equipments and with reduced loads, operating on spans divided into 14 segments, in addition to the central junction segment. The speed of construction was remarkably high, considering the intrinsic difficulties of the site, in terms of access and road conditions of the construction site.   --- A construction in record time The work is a continuous steel structure, with a reticular beam and an orthotropic slab deck. The bridge is 810 m long, 14. 5 m wide and is divided into 11 spans of variable span from 61 to 71 m. It can be fully inspected thanks to a service walkway that runs below the deck in operation. The structures have a weight of 8,000 tons. The maximum weight of the single span is 610 tons. SPIC carried out the assembly, painting, transport and incremental launch of the deck. For the construction of the bridge, a prefabrication plant covered at the base of one of the two shoulders of the bridge was created, consisting of two separate sheds in which the assembly and welding of the components was carried out, the metallization in the welded joint areas and painting. The surface treatment of the structures is highly performing and guarantees a life cycle of 50 years without intermediate maintenance, through galvanizing and metallization and painting processes. The bridge was built and assembled in 11 months, of which five dedicated to the construction of the construction site and six to the construction and launch of the work. The production plant, after start-up, made it possible to produce a full span every two weeks. The spans thus prefabricated were transported with an ingenious system of skids and winches up to the launch line, to be then welded together and launched along the final launch line. Thanks to a careful study of the activities on site and using assembly technicians with great experience and ability, the work was carried out in record time. --- Construction sites in parallel The work consists of two side-by-side viaducts, each approximately 2 km long, for a total of 39 spans with a maximum length of 100 m. The construction was carried out by operating in parallel on seven distinct positions, which made it possible to carry out the work in a very short time, employing a maximum of about 100 people on site. The spans were made in 10 segments, in addition to the central junction one. SPIC carried out all the construction activities of the deck, from the assembly of the steel beams, to the casting of the slabs and to the post tensioning. The work stands out for its slenderness and for the operational flexibility that the particular technology allows, as with the handling of very light structures it is possible to create important spans without the need to create prefabrication sites or to use means of transport and launch of great capacities and dimensions. --- Project Information The Piacenza 1 and Piacenza 2 viaducts are two of the main viaducts along the Milan-Naples High Speed Railway Line, Milan-Bologna section, which winds for a length of about 182 km across the Po Valley, involving the provinces of Milan, Lodi, Piacenza, Parma, Reggio Emilia, Modena and Bologna. The viaducts, located in the province of Piacenza, of 2,521 and 2,582 meters in length respectively, consist of 81 spans of 33. 1 meters and 1 span of 21. 8 m plus 3 special steel-concrete spans with of 40, 38 and 50 meters. Each of the 33. 1 and 21. 8 meter spans of the deck consist of a prefabricated two-cell reinforced concrete post-tensioned beam weighing 970 tons. The beams are made in a prefabrication site located near the railway axis, a site divided into four zones, depending on the operations carried out there; the prefabrication area, the assembly area of the slow and prestressing reinforcements, the concrete mixing plant and the storage area. The first two areas are built inside two longitudinally adjacent metal sheds approximately 100 meters long and 22 meters wide each. The 970 ton prefabricated beam launching system consists of the following equipment: Transport trolleys Launching equipment The transport trolleys, having taken the beam from the storage area, transport it along the embankment and the deck already built up to the launching equipment positioned astride the span to be launched. The trolleys then slide below the launching equipment and inside the underbridge, and after lifting the beam by means of the equipment winches, they move back out of the underbridge and return to the prefabrication area for the removal of a new beam. At this point, the advancement of the under-bridge and then the installation of the prefabricated beam is carried out; once the beam launching operations have been completed, the launching equipment advances on the underbridge positioning itself for a new launch. --- The main viaduct of the Turin-Milan high-speed railway line The Santhià viaduct is one of the main viaducts of the Turin-Milan High Speed Railway Line. The viaduct has a total length of 3. 8 km and is made up of 148 spans of 25 meters in length and 4 shorter spans of approximately 20 meters. Each span of the deck is made up of a single-cell box beam beam in pre-tensioned reinforced concrete with adherent wires, with a simple support structure, with a height of 2. 35 meters and a total width of 13. 60 meters, and with a maximum weight of 540 ton. The beams were made in a prefabrication site specifically built for the work and located near the initial shoulder of the viaduct, a plant divided into four areas: assembly of slow and prestressing reinforcements; prefabrication of box beams lifting of the box beams storage of box beams The first two areas are built inside a metal shed equipped with two 35 ton service gantry cranes. The following equipment was used for the launch of the 540 ton box beams: rubberized transport trolley launching equipment The wheeled trolley picks up the beam from the lifting area or the storage area and transports it along the embankment and deck already built up to the launching equipment. Once the rear pendulum leg of the launching equipment has been raised, the trolley is positioned below the launching equipment itself to allow the beam to be removed. Once the beam has been installed, the launching equipment can advance to the next span to prepare for the new launch. --- High Speed Railway Line The "Modena Viaduct System" consists of a series of railway viaducts with a total length of approximately 24 km and characterized by the "omega" shape of the decks. The typological deck is single-track, with lower runway and prestressed with post-tensioned cables; the shells, inside which the train passes, are designed to act as an acoustic barrier and to significantly reduce the impact on the landscape thanks to the large elliptical grooves made on the external surface. The Modena Viaduct System consists of 5 viaducts; the Brenner Viaduct (2,080 m double route, which allows the crossing of the A22), the Modena Viaduct (7,116 m double route), the Secchia Viaduct (2,423 m single route, which allows, in addition to crossing the Secchia river, the connection with the district industrial of Modena Nord and the Modena station), the Panaro Viaduct (1,496 m double route, which allows the crossing of the Panaro river), in addition to the Modena Ovest interconnection (two single viaducts, with a total length of 496 m which allow the connection with the Modena station). It is the most significant work among those built in the province of Modena and is part of the 182 km of the section that connects Milan to Bologna. SPIC carried out the prefabrication, transport and launch of the 755 isostatic elements with a maximum length of 31. 50 m and a weight of approximately 710 tons each; the beams were launched on the previously constructed piles by means of two “ad hoc” launching carriages. --- A strategic work in which SPIC played a fundamental role The "East West" highway that crosses the north of Algeria is a strategic work for the country. SPIC has been present in the area for many years and with the organization and the machines it has on site it has built two viaducts for this work, one for the Algerian company ENGOA and one for the Italian company CMC. The total surface realized by SPIC is approximately 47,200 m2, with a maximum span between the piers of 80 m, for a deck width of 15. 7 + 15. 7 m and 15. 3 + 15. 3 m. In this situation, SPIC supplied all the equipment for the prefabrication, transport and launching, carried out the prefabrication of the segments, the transport of the same and the launch. The prefabrication was developed in two separate sites, designed, built and dismantled by SPIC.   --- Span by span assembly and vacuum injections: construction speed and durability of the work Siracusa - Gela motorway; Ispica and Modica section Viaducts Scardina and Salvia The viaducts have a distance between the piers ranging from 47 to 54 m, a planimetric radius of curvature of 1000 m, a maximum transverse slope of 6. 5% and a maximum longitudinal slope of 5%. It was made of prefabricated segments, having a width of 12. 7 m and a length varying from 1. 4 to 4 m with the weight of the individual segments varying from 46 to 72 tons. The deck was built using the technique called "span-by-span" which consists in the assembly on site of prefabricated segments, supported by a suitable launching girder, arranged in such a way as to create a whole span to which are added, cantilever, four segments of the next span. The segments for each span are hung, below the girders of the equipment, by means of steel bars fixed to special structures integrated into the trusses themselves. The first phase prestressing allows to reach the static equilibrium and, consequently, to advance the launching girder for the construction of the next span. The second phase cables are subsequently tensioned with respect to the first phase cables, as the construction process progresses. The assembly was carried out by means of a launching girder with a capacity of 100 tons, equipped with two truss beams of triangular section 135 m long and 6m high, made up of prefabricated modular elements 12 m long and connected to each other by pin joints. The machine could operate with maximum wind in operating conditions up to 45 km / h The injection of the cables into the sheaths was carried out with the vacuum technique: the injection of the cement grout is carried out by placing the sheaths under vacuum before the injection phase. In this way there is a perfect adherence of the cables with the reinforced concrete section and thus eliminates any presence of voids between cables and filler, obtaining a high guarantee of the expected useful life of the work. The operations were carried out according to international standards and operating procedures and by highly qualified SPIC personnel. --- Reliability and speed: the result of knowledge and organization The bridge over the Tagliamento river consists of two decks (one in each direction) each of which has a width of 20. 30 m. The work consists of two viaducts side by side, each with a 1,520 m long carriageway consisting of 19 spans on 20 piers, with a typical span of 81. 6 m. The deck has a typical height of 3. 20 m with an increase near the piers up to a maximum height of 4. 00 m. The type of prestress used is that mixed with internal and external cables. The assembly was carried out in balanced overhangs. The final static layout of the decks is therefore a continuous beam divided by expansion joints. The lengths of the segments, which have a maximum weight of 110 tons, have variable values: 1. 60 m for pile segments, 2. 67 m for variable section segments and 2. 85 m for constant section segments. The segments were made in a 33,000 m2 prefabrication plant, built specifically for the work and located near the final installation area. The transport of the segments from the prefabrication area to the installation area took place with rubber trolleys while the assembly was carried out with a specially made launching equipment. The great level of organization and control, in addition to the high quality of the prefabrication systems, has allowed the production of segments with manufacturing tolerances of +/- 2 mm and a very fast assembly, greatly reducing the time initially foreseen. --- From the Detailed Design to the Realization As part of the broader contract relating to the construction of the section of the railway network serving as a link between the Rome-Naples High Speed line and the new Monte Vesuvio line, SPIC has developed the detailed design, the launch design and the construction and the launch of 148 box-type bridge girders in post-tensioned reinforced concrete for the Volla 1, Volla 2 viaducts and the Arin underpass. The decks proposed by SPIC as a variant with respect to the tender solution consist of two prefabricated post-tensioned reinforced concrete half-box beam connected transversely on site. The prefabrication and the launch were carried out with the following main equipment. These are specific equipment conceived, designed and manufactured by SPIC. two templates for assembling the armor. two metal formworks complete with pulling heads. a 280 ton gantry crane for picking up the beams from the formworks. two runways for the translation of the 280 ton portal crane two wheeled trolleys for the transport of products on the deck of 140 tons each a 280 ton launching girder --- Pedemontana Veneta highway The Pedemontana Veneta Superstrada is a road of great communication that extends for a total of 162 km - 94 km of main road and 68 km of secondary road - in the foothills of the Veneto Region, involving a territorial basin of 114 municipalities in the provinces of Vicenza and Treviso. The work interconnects the region's motorway system, allowing in turn the connection of the main highways of north-eastern Italy, and is carried out by the SIS Consortium made up of the Spanish contractor SACYR and the two Italian companies INC and SIPAL. The route has 2 lanes for each direction and about two thirds of it is built in the trenches: it intercepts numerous waterways, both natural and artificial, as well as the existing road network. Among the various works along the route of the highway there are 2 natural tunnels and 33 artificial tunnels. As part of the overall project, the object of SPIC's intervention consisted in the design, supply and installation of the prefabricated roof beams of the 12 artificial tunnels for a total area of approximately 75,000 m2 The galleries object of the SPIC intervention are: Noaje, San Pietro, Zilio, Brentella, Caravaggio, Trevignano, Via Feltrina, Pastro, Colombere, Lavaio, Villa Fanna and Spresiano, along the route on sections B, C, D and E of Lot 3 of the expressway, between the Mussolente junction / Loria and the A27 Venice - Belluno motorway axis. The production of prefabricated components, of the pretended type, was carried out in a factory located in an almost barycentric position with respect to the portion of the route subject to intervention, equal to about 1/3 of the entire work: the minimization of travel distances as well as careful analysis of the ordinary viability towards the intervention sites allowed the adoption of a cross section of the oversized beams, 3 m wide. The structural optimization of the prefabricated elements resulting from this choice has allowed the minimization of the incidence of materials, the reduction of costs and times of production, transport and launch of the beams. The components were produced on a prefabrication track just under 40 m long, capable of allowing a daily production of 2/3 beams depending on their length: a total of 1656 beams were prefabricated, with a length between 13. 20 and 18. 40 m, and variable weight between 27 and 42 tons. The construction of the prefabricated elements began in August 2015 and the launch of the roofs of the artificial tunnels was completed in December 2019, in line with the time schedule of the SIS Consortium. --- An incremental launching of 168 m of free span The access of ships from the sea to the port required, before the construction of the viaduct, the interruption of the road system and the lifting of the movable bridges, an activity that was carried out at night. The connection between North and South, in the western part of the city, was created to allow the free passage of ships, thus completing the eastern part of the road ring that surrounds the city. In this context, SPIC carried out two of the eleven sections of the Main Contractor's project, ICA (ICTAS and Astaldi S. p. A. ) in terms of: analysis of production processes and ground assembly analysis of production and assembly processes and incremental launching assembly and disassembly of the auxiliary structures to carry out the launching at height (20'900 tons) assembly and incremental launch of the two sections of the viaduct (39,600 tons; 55,000 m2 of deck) Section 2, also called "Double Deck", has a length of 1 km, with a maximum span of 168 m (20'100 tons of permanent structures and 15'000 tons of auxiliary structures) Section 3, also called "Yard 1" has a length of 1. 6 km, with a maximum span of 126 m (19'500 tons of permanent structures and 5'900 tons of auxiliary structures) The realization required: 45 technicians and supervisors up to 850 people working on site The work was carried out between 2014 and 2016, in a total of 26 months of which 18 of activities on site. SPIC has created, in this work, one of the world's largest incremental launches: 168 m of free span. --- High Speed Milan - Venice Line. Treviglio Brescia section. Execution of the structural concrete slab and of the transoms for the railway viaducts of the project. In these works, the casting of the slab was made with the use of a formwork mounted on the edge beams by means of metal shelves. This solution avoids the use of prefabricated predalles, which would act as a disposable formwork. Compared to the solution with the predalles, the execution with the formwork guarantees a higher quality of the finish of the slab, with positive effects on the durability of the work. Furthermore, this solution simplifies the work to be carried out such as the assembly of the reinforcement iron of the slab, eliminating interference with the trusses of the predalles. The self-leveling formwork designed and built by SPIC also allows you to work safely on the crossbeams during the realization of the transverse prestress. --- A slender, high-performance deck This viaduct represents the last stretch to the south-east of the Brescia underground and is composed of 55 piers and 6 abutments with a maximum span of 30m. The static scheme that has been used is that of a double-span beam, wedged on the central pile and simply resting on the lateral piers, a solution that has allowed to obtain a slender deck, 1. 35 m thick over a width of 8. 5 m, obtained by casting on site with post-tensioned reinforcement. The casting and prestressing of two spans at a time made the construction very fast and of high quality in terms of finished product. SPIC built the entire deck, with construction design, installation of the formwork, construction and installation of the reinforcement and post tensioning. --- --- ## Works Extraordinary maintenance of bridges and viaducts For the decks and piles of bridges and viaducts in reinforced concrete, prestressed concrete and steel, both rail and road, SPIC has all the skills, organization, means and references to intervene in the cases of: structural restoration surface restoration differentiated lifting to replace supports functional and seismic adaptation specialist deconstructions through the use of lauching girders (owned) maintenance, stringing or replacement of stays stringing or replacement of prestressing cables In these specific activities, SPIC has been operating for over a decade and has an emergency team composed of technicians and specialized personnel, in possession of suitable equipment and assisted by the company technical department. These specialized teams work continuously at various Motorway Concessionary Companies. In the context of highly specialized interventions such as lifting or external prestressing, SPIC is also able to offer integrated solutions between design and execution of works including the procurement of constraint devices and prestressing steels through synergies with other companies of the group of belonging. The interventions with carbon fibers (FRP), where SPIC has gained specific and complete experience, has allowed SPIC to solve many critical situations in very short intervention times and at low costs.   --- Skills and competences SPIC has the skills, organization and equipment to develop all the activities related to the process of construction of structures made with casting on site and typically: construction design topographic control preparation of all auxiliary site structures construction of roads and auxiliary structures for the construction of the work provision of proprietary equipment such as formworks, cranes, lifting and handling systems, auxiliary equipment management of concrete production prefabrication of reinforcement reinforcements castings realization of post tensioning and stay systems, with stringing and control realization of provisional and definitive support systems realization of finishing works, such as rainwater collection and transport systems, installation of temporary and definitive barriers --- In the field of prestressed reinforced concrete prefabrication SPIC performs all the activities necessary to give the complete work, starting from the conception of the prefabrication system up to the installation of the prefabricated elements. SPIC manufactures the machines and installs the construction site for the production of the elements: warehouses, formworks, handling systems develops the production of prefabricated elements designs and manufactures machines for handling, transport and launching carries out all handling, transport and launching activities The large amount of works carried out and machines built, partly also owned, allow SPIC targeted, economic and short-term interventions.   --- The solution for harsh environments. An optimal solution to operate in inaccessible areas, with very high piles and difficulty in accessing construction areas, is constituted by mixed decks. The deck structure consists of two lateral steel beams, a lower slab and an upper concrete slab. The great advantage of this technique is constituted by the fact that the construction can be carried out with low capacity cranes and very high piles, covering spans that can reach 125 m of span. The speed of execution is guaranteed by the fact that it is possible to operate on many fronts simultaneously. In this methodology, the post-tensioning technique that allows the union of the single segments in a first phase and the connection of the entire span in the second phase, plays a fundamental role. SPIC perfectly masters this construction technique, as evidenced by the accumulated references. --- A complete competence In the field of construction and assembly of steel decks, SPIC has a complete competence that goes from the conception and design of the methods and systems to the construction of the deck and the launch, passing through the installation and commissioning of the auxiliary construction site structures. SPIC designs and manufactures, in its workshops, handling, transport and launching systems, such as cranes, trolleys and winches. The considerable availability of its own equipment, specific for these types of assembly, allows SPIC very fast intervention times.   --- Organization, personnel and means The assembly of structures and plants of large industrial structures, such as steel mills, aeronautical production sites, etc. , require the ability to mobilize and organize the activities of large numbers of people and operational means who have to act in confined spaces and in very short times. The organizational structure of SPIC, made up of people with great experience gained in complex and difficult contexts, guarantees the Customer an interlocutor capable of following the natural dynamics of acceleration and change of direction that often occurs during the operational phases. In this context, SPIC manages to mobilize a considerable amount of its own specialized personnel, as well as a large variety of operating equipments, such as cranes, transport handling systems, mobile and temporary covered structures for assembly, etc. --- Disassemble, de-build and, only if necessary, demolish SPIC has all the skills, organization and means to intervene in situations where disassembly or de-construction is required, i. e. a delicate and non-invasive activity for load-bearing structures (such as piers) or to be carried out in areas not very accessible. These activities require particular expertise and SPIC is able to provide all the necessary services, from the preliminary investigations to the study of the intervention methods, including the design of the equipment to be used up to the realization of the activities, providing real and financial guarantees relating to the lead times. intervention and technical performance to be achieved.   --- Segmented Decks - Fast and Flexible Solution   SPIC has a large number of references in the construction of segmented decks, in the two construction options (full span or cantilever and span by span). This type of construction allows the following advantages. Reduce the overall construction time of the project, as the segments are prefabricated before their installation in the final position Create curved or sloping paths Obtain solid and durable works, thanks to the post-tension inserted inside the elements that connect them to each other and to the piles. Possibility of carrying out the work in very difficult access areas as through an assembly carried out with dedicated equipment (launching girder) SPIC owns a large amount of equipment both for the prefabrication of the segments and for their installation, equipment designed and manufactured by SPIC and which can be easily adapted case by case to the specific needs of the work, with a start-up time very limited for production compared to the date of the order and with limited costs for the adaptation of the equipment. --- Decks with beams The construction of a deck, both for a bridge and for a viaduct, with a load-bearing structure in prestressed prefabricated beams allows the structure to be built quickly, exploiting the flexibility given by the possibility of producing the beams both in normal prefabrication plants, when these are short distance from the site where you have to operate, both to produce the beams in a dedicated plant, with limited cost, as frequently happens in the case of large works or when you are in areas not covered by existing prefabrication plants. The latter case is typical of Algeria, where SPIC has been operating continuously for many years and where, several times, it has built prefabrication plants dedicated to a single project, complete plants with sheds with overhead crane, gantry cranes, formworks and concrete production. --- Box beam decks SPIC has built many viaducts with a box beam bearing structure, in particular a large part of the high-speed railway line in Italy. The box beam deck guarantees great durability of the work and speed of execution, thanks to the prefabrication of the box beams outside the erection site in a dedicated plant. In this field SPIC has important references both in the design and construction of complete production and handling systems (formworks, cranes, trolleys for handling and transport) and in the design and construction of launching equipments, as well as in the construction of the deck.   --- ---