Design (Bridges)

 

In the field of prestressed concrete (PC) bridges, Dr. Rosignoli has led or participated in the design of 6 cable-stayed bridges, 17 incrementally launched bridges, 4 balanced cantilever bridges, 9 multi-span bridges cast on falsework or advancing shoring, 40.3km of precast segmental light-rail-transit (LRT) bridges, 26.4km of precast segmental highway bridges, 4 modular systems of precast beam bridges, a modular system of 51 haunched-slab overpasses, and 4 modular systems of precast segmental overpasses. His structural retrofit designs include one long-span rigid-stayed bridge designed by Morandi in the sixties.

In the field of steel and steel-composite bridges, Dr. Rosignoli has led or participated in the design of 5 cable-stayed bridges, 8 arch bridges, a tied-arch bridge, 4 incrementally launched bridges, the widening of one of the largest portal bridges in the world, bridges with double composite action, a modular system of I-girder overpasses designed for inherent redundancy, and kilometers of simple and continuous spans.

Dr. Rosignoli’s projects are spread in 12 countries on three continents and involve pre- and post-award design and technical and technological assistance. Many projects were design-build (D/B) pursuits and required site assistance during critical construction stages; others were design-bid-build (DBB) projects or required some extent of independent design review.

• Dragados-Flatiron JV (2015-2016). Harbor Bridge Replacement Project, Corpus Christi, TX, USA. Owner: Texas Department of Transportation. Procurement method: D/B. The final post-award design of the Harbor Bridge Project included a 1000m-long, 45m-wide cable-stayed bridge, 11.2km of precast segmental approaches, major aerial interchanges, 17 bridges, and 4 direct connectors. When completed, the 504m main span will be the longest cable-stayed span in North America and the longest concrete span in the world with a central plane of stay cables. As project technical director, Dr. Rosignoli corrected multiple aspects of the pre-award design of main span and approaches. The main span now uses a symmetrical section, avoids unexplored combinations of light- and normal-weight concrete, features a brand-new layout of longitudinal post-tensioning, and will be erected as balanced cantilevers with temporary stay cables instead of on falsework. Permanent back-span piers were added to enhance aeroelastic stability during construction and reduce longitudinal live-load bending. The precast segmental approaches were erected span-by-span with a self-launching gantry instead of by ground assembly and strand jacking with lifting frames. A span-by-span casting option with two movable scaffolding systems was also designed, estimated, and proposed to TxDOT. Dr. Rosignoli also led the qualification of all construction materials for 170-year service life.
• Parsons Brinckerhoff (2014-2015). Harbor Bridge Replacement Project, Corpus Christi, TX, USA. Owner: Texas Department of Transportation. Procurement method: D/B. The pre-award design of the Harbor Bridge included an 853m, 41m-wide cable-stayed steel-composite bridge over the Port of Corpus Christi Ship Channel, 11.6km of precast I-beam approaches, and major aerial interchanges, bridges and direct connectors. As technical director of the design firm and engineer-of-record of the main cable-stayed span pre-award design, Dr. Rosignoli led the design team effort and supervised structural modeling and analysis.
• HDR (2012-2014). Tappan Zee Hudson River Crossing, Tarrytown, NY, USA. Owner: NYSTA. Procurement method: D/B. The New NY Bridge Project is one of the largest transportation infrastructure projects in North America; it includes two adjacent cable-stayed bridges with 366m main span over the Hudson River and 5.0km of twin approach bridges comprising continuous modules of four 107m spans on seismic isolation-dissipation (I/D) systems. The foundations of approaches and main span were designed for the future application of a third cable-stayed bridge for dual-track light-freight railroad traffic. As the project technical director, Dr. Rosignoli led the design team in the post-award design of main span and approaches and supervised wind tunnel testing, structural modeling and analysis, 3D finite-element analysis of the transition plugs between pile-cap footings and steel-pipe piles, design of full-depth precast deck panels for 100-year service life, and buckling analysis of precast pile-cap tubs during lifting and floating. His duties also included technical coordination of sub-consultants, writing Design Criteria for the future cable-stayed railroad bridge integrating AREMA and AASHTO provisions with Eurocode specifications, design of approach spans for incremental launching construction over the Metro North Railroad, and technical support to multiple design teams and the Tappan Zee Constructors.
• HNTB (2010-2011). Florida High Speed Railway, Orlando-Tampa, FL, USA. Owner: Florida HSR. Procurement method: D/B. This assignment included the bid design of 14.3km of dual-track box-girder bridges and numerous single- and multi-span skewed precast I-beam bridges. The construction methods include full-span precasting and balanced cantilever casting with form travelers. As the project lead designer, Dr. Rosignoli’s duties included structural modeling and analysis, time-dependent staged-construction analysis, analysis of rail-structure interaction, dynamic analysis of train-induced resonant vibrations of box girders and skewed I-beam spans, dynamic analysis of single-track U-spans during train derailment, and writing the Design Criteria for the first high-speed railway project in the United States.
• HNTB (2009-2012). Honolulu High-Capacity Transit Corridor Project, WOFH and KHG Segments, Honolulu, HI, USA. Owner: HART. Procurement method: D/B. The pre- and post-award design of 19.4km of dual-track precast segmental LRT bridges included 445 spans constructed with self-launching gantries and by balanced cantilever casting, as well as multiple aerial stations. As the project technical director, Dr. Rosignoli’s duties included pre- and post-award design of drilled shafts, piers (elevated guideway and aerial stations) and multiple configurations of single- and dual-track precast segmental spans and cast-in-place balanced cantilever bridges. Duties included time-dependent staged construction analysis, analysis of rail-structure interaction, dynamic analysis of train-induced resonant span vibrations, and dynamic analysis of passenger-induced vibrations of aerial stations. Duties also included solid finite-element modeling of precast segmental assemblies for analysis of train derailment stresses and erection stresses from crane on-deck and for the design optimization of transverse post-tensioning.
• HNTB (2008). Willamette River Bridge, Portland, OR, USA. Owner: Tri-Met. Procurement method: D/B. Bid design of a steel-composite dual-track LRT arch bridge crossing the Willamette River (207m main span) and two signature PC approaches with continuous delta-frames and 79m spans. As the lead design engineer, Dr. Rosignoli’s duties included structural modeling of the tied-arch bridge with 8-node shell elements, nonlinear time-history dynamic analyses of the seismic response, buckling analyses of the arch ribs, and dynamic analyses of span resonance with traveling point loads.
• HNTB-Parsons JV (2006-2009). Gerald Desmond Cable-Stayed Bridge, Long Beach, CA, USA. Owner: Port of Long Beach and Caltrans. Procurement method at the time of the assignment: DBB. The assignment included the preliminary and final design of a signature 610m cable-stayed span over the main navigation channel of the Port of Long Beach and of precast segmental approaches. The main span comprises two planes of stay-cables and a 48m-wide steel-composite deck with streamlined edge box girders. The pylons include steel-composite columns connected by shear-links that dissipate seismic energy by yielding in shear. As the main span lead designer, Dr. Rosignoli’s duties included nonlinear time-history dynamic analysis of multiple configurations of seismic I/D devices, analysis of project-specific live loads, and dynamic analysis of wind loads from wind-tunnel testing. The final design of test specimens for the pylon shear-links required solid 3D finite-element modeling, optimizing cyclic plastic buckling with different configurations of web-stiffeners, and writing a custom cyclic-plasticity material model for ADINA.
• HNTB (2006-2007). Magnolia Bridge Replacement, Seattle, WA, USA. Owner: City of Seattle. Procurement method: DBB. Preliminary and final design of a complex system of PC bridges within the Port of Seattle. The project includes three ramps cast in-place on falsework, a precast railroad crossing, a 1160m mainline bridge cast on falsework, and two 110m balanced cantilever spans cast in-place with form travelers on tight plan curvature. As the project lead designer, Dr. Rosignoli’s duties included structural modeling and analysis, time-dependent analysis of staged construction, and supervision of the design team.
• Pizzarotti (2006). Basarab Overpass, Bucharest, Romania. Procurement method: D/B. As contractor’s consultant, Dr. Rosignoli’s duties included critical review of the bid design, value-engineering design, analysis of construction means & methods, and the pre-award design of a modular system of precast T-beam approaches and a cable-stayed precast T-beam grillage crossing the Dambovita River.
• Pizzarotti (2005-2006). TIBRE Highway Link, Italy. Owner: ANAS. Procurement method: D/B. As contractor’s consultant, Dr. Rosignoli’s duties included the pre-award design of skewed steel wing structures protecting tunnel inlets from wind and snow. The longest wing, spanning 64m and 8.5m-wide, was designed with a 3D structural model comprising 24.000 shell elements for the analysis of local and global buckling.
• Consorzio BBM (2005-2006). BREBEMI Highway, Bergamo, Italy. Owner: BREBEMI. Procurement method: D/B. As contractor’s consultant, Dr. Rosignoli’s duties included design and technological assistance for the incremental launching construction of three pairs of adjacent bridges on 61m spans: the 570m Oglio River Bridge, the 930m Serio River Bridge, and the 1470m Adda River Bridge. Dr. Rosignoli’s duties also included cross-section optimization, post-tensioning design and casting-yard organization.
• Pizzarotti (2005). Bypass of State Road 212 between Pietrelcina and San Marco dei Cavoti, Foggia, Italy. Owner: ANAS. Procurement method: D/B. As contractor’s consultant, Dr. Rosignoli’s duties included critical review of the bid design, value-engineering design, analysis of construction means & methods, pre-award design of 3.4km of modular precast I-beam bridges, and nonlinear time-history dynamic analysis of seismic I/D systems for multiple span configurations.
• Pizzarotti (2005). State Road 106 Ionica – External Bypass of Marina di Gioiosa Ionica between Km. 107+800 and Km 110+550, Cosenza, Italy. Owner: ANAS. Procurement method: D/B. As contractor’s consultant, Dr. Rosignoli’s duties included critical review of the bid design, value-engineering design, analysis of construction means & methods, pre-award design of four precast I-beam bridges with modular spans, and the design of seismic I/D systems with nonlinear time-history dynamic analysis with spectrum-matching seismograms.
• Eiffage-Pizzarotti JV (2005). Direttrice Cremona-Mantova Regional Highway, Parma, Italy. Owner: ANAS. Procurement method: D/B. As contractor’s consultant and the project engineer-of-record, Dr. Rosignoli’s duties included critical review of the bid design, value-engineering design, analysis of construction means & methods, and the pre-award design of two solutions for the 51 overpasses: a modular system of haunched-slab PC bridges cast in-place on lifting forms, and a modular system of steel-composite bridges with twin I-girders designed for inherent redundancy and full-depth precast slab panels.
• Pizzarotti (2004-2005). Salerno-Reggio Calabria Highway, Section 3, Segment 3, Italy. Owner: ANAS. Procurement method: D/B. As contractor’s consultant, Dr. Rosignoli’s duties included critical review of the bid design, value-engineering design, analysis of construction means & methods, and the pre-award design of a modular system of 36 bridges comprising 11 types of precast I-beams with length ranging from 30m to 42m. His duties also included structural modeling and analysis of 23 continuous beams and nonlinear time-history dynamic analysis with spectrum-matching seismograms for the design of seismic I/D systems.
• Pizzarotti (2004-2005). Salerno-Reggio Calabria Highway, Section 1, Segment 5, Italy. Owner: ANAS. Procurement method: D/B. As contractor’s consultant and the project engineer-of-record, Dr. Rosignoli’s duties included critical review of the bid design, value-engineering design, analysis of construction means & methods, and the pre-award design of the Molino Bridge. The bridge was designed as a 2-span continuous beam with 98m and 82m spans, varying-depth steel I-girders, and double composite action (bottom concrete slab in the central negative-bending region). Dr. Rosignoli’s duties also included analysis of the time-dependent stress redistribution of double-composite action and nonlinear time-history dynamic analysis of seismic I/D systems.
• Studio Matildi (2004-2005). Fosso Damiano Bridge, Svincolo A1 Bridge, San Calogero Bridge, Ragusana Flyover, Svincolo A3 Bridge, SS194 Flyover, Benante Bridge, SS144 Villasmundo Viaduct, and San Fratello Viaduct for the Siracusa-Catania Highway, Italy. Owner: ANAS. Procurement method: D/B. The assignment included the post-award design of nine simply supported steel-composite spans ranging from 35 to 43m and featuring three steel I-girders, orthogonal K-diaphragms, varying-width deck, and markedly skewed alignment. As the engineer-of-record of the bridges, Dr. Rosignoli’s duties included 3D structural modeling and analysis of the nine spans with 8-node shell elements and leading the design team.
• Pizzarotti (2004). Civitavecchia-Orte-Terni-Rieti Motorway, Italy. Owner: ANAS. Procurement method: D/B. As contractor’s consultant, Dr. Rosignoli’s duties included critical review of the bid design, value-engineering design, analysis of construction means & methods, and the pre-award design of a steel-arch bridge over the Nera River. Dr. Rosignoli designed the arch with a circular profile, close spandrel columns in the crown region, and twin diverging rectilinear legs toward the springings. The arch spans 161m and the raise is 37m. The 300m steel-composite deck over the arch includes two steel I-girders connected by floorbeams and supporting full-depth precast slab panels. Dr. Rosignoli’s duties included 3D structural modeling and analysis, buckling analysis of arch ribs, seismic analysis, analysis of erection sequences for the steel arch, and analysis of the incremental launching construction of the deck over the arch.
• Pizzarotti-Snamprogetti JV (2003). Variante di Mestre, Venezia, Italy. Owner: ANAS. Procurement method: D/B. As contractor’s consultant, Dr. Rosignoli’s duties included critical review of the bid design, value-engineering design, analysis of construction means & methods, and the pre-award design of a modular system of steel-composite bridges featuring four steel I-girders and full-depth precast deck panels.
• Adige Bitumi-Maltauro JV (2003). Connection of the Industrial Area of Lavis with Highway A22 and the Custom Interport of Trento, Trento, Italy. Owner: Amministrazione Provinciale di Trento. Procurement method: D/B. As contractor’s consultant, Dr. Rosignoli’s duties included critical review of the bid design, value-engineering design, analysis of construction means & methods, and the pre-award design of a 205m, 27m-wide steel-composite cable-stayed bridge to be incrementally launched over Highway A22. Dr. Rosignoli’s design used steel boxes for edge girders and staggered V-pylons; the PC deck slab was supported on a steel space-frame connecting the edge girders. Dr. Rosignoli’s duties also included 3D structural modeling of the cable-stayed bridge, analysis of launch and service stresses, and estimates of quantities and costs.
• Pizzarotti-Snamprogetti JV (2003). Salerno-Reggio Calabria Highway, Section 3, Segment 2, Italy. Owner: ANAS. Procurement method: D/B. As contractor’s consultant, Dr. Rosignoli’s duties included critical review of the bid design, value-engineering design, analysis of construction means & methods, the pre-award design of four steel-composite arch bridges spanning from 85 to 161m, and the widening redesign for the steel orthotropic deck of the Sfalassa’ Viaduct – the largest steel portal-frame bridge in Italy, with a main span of 372m. His duties included 3D finite-element modeling of structural nodes, structural modeling and analysis of multiple arch bridges, erection analysis with half arches assembled vertically and rotated about springings, and analysis of progressive onset of composite action and time-dependent stress redistribution within the composite arches. Duties also included analysis of stress redistribution within the Sfalassà Viaduct due to progressive application of deck widening panels.
• Sembenelli Consulting (2002-2003). Reggiolo Overpass, Reggio Emilia, Italy. Owner: Autostrada del Brennero. Procurement method: DBB. The Reggiolo Interchange Project included a skewed 26m multi-cellular PC span overpassing an electrified railroad with width ranging from 17 to 24m. Dr. Rosignoli designed the span for casting behind the abutment and launching over the railroad with concrete launch noses and a temporary pier. As the bridge engineer-of-record, his duties included the preliminary and final design of the span.
• Gennari-Oddi (2002). Ticino River Bridges for the TAV High Speed Railway, Trecate, Italy. Owner: CavToMI. Procurement method: DBB. As designer’s subconsultant, Dr. Rosignoli’s duties included the preliminary and final design of two adjacent 18m-wide steel-composite bridges (340m- and 420m-long) for incremental launching construction on 70m spans.
• Pizzarotti-Snamprogetti JV (2002). Retrofitting of the Salerno-Reggio Calabria Highway from km. 53+800 to km. 82+330, Salerno, Italy. As contractor’s consultant, Dr. Rosignoli’s duties included critical review of the bid design, value-engineering design, analysis of construction means & methods, and the pre-award design of multiple steel-composite bridges with spans ranging from 80 to 110m. His duties also included structural modeling and analysis, analysis of lifting-frame erection of precast composite macro-segments, and cost and quantity estimates.
• Pizzarotti (2002). Duplication of the Milano-Brescia Highway, Bergamo, Italy. Owner: BREBEMI. Procurement method: D/B. As contractor’s consultant, Dr. Rosignoli designed the 2120m Adda River Bridge, the 1200m Serio River Bridge, and the 870m Oglio River Bridge for incremental launching construction on 46m spans. The three riverbeds were crossed with concrete-filled tubular arches (two with 150m span, and one with 180m span) that suspend the deck on launch completion on temporary piers. The 40m-wide superstructure includes a tri-cellular box core widened with steel-composite side wings. Dr. Rosignoli’s duties also included critical review of the bid design, value-engineering design, analysis of construction means & methods, and the pre-award design of two modular systems of precast segmental overpasses (with and without central pier) and a modular system of precast channel-bridges.
• Egnatia Odos (2001-2006), Thessaloniki, Greece. As owner’s consultant, Dr. Rosignoli’s duties during this long-term assignment included site-specific seismic-hazard assessment, nonlinear time-history dynamic analysis of seismic I/D devices, nonlinear time-history dynamic analysis of transverse pounding of adjacent bridge superstructures, constructability review, and technical assistance.
• TTA (2001). Verea Bridge, Verea, Greece. Owner: Egnatia Odos. Procurement method: DBB. As designer’s subconsultant, Dr. Rosignoli designed a skewed 110m bridge crossing a channel with 24m spans for span-by-span casting on advancing shoring. His duties included preliminary and final bridge design according to DIN Norms and Greek Standards, and the design of seismic I/D systems.
• TTA (2000-2001). Megalorema Bridge, Ioannina, Greece. Owner: Egnatia Odos. Procurement method: DBB. This project included two adjacent 500m PC bridges built by incremental launching on steep gradient and 43m spans. As designer’s consultant, Dr. Rosignoli provided design and technological assistance, analysis of the thrust and guide forces of incremental launching, launch stress analysis, preliminary design of launch nose and casting-yard organization, and constructability reviews.
• DEAL (2000). Modena Bridges, TAV High Speed Railway, Modena, Italy. Client: Modena scarl. Procurement method: D/B. The bid design of nine 3-span single-track PC bridges specified in-place casting with an MSS. As equipment manufacturer’s consultant, Dr. Rosignoli’s performed critical reviews of the bid design, value-engineering design, analysis of construction means & methods, and the pre-award design of the bridges for incremental launching of two deck sections from the opposite abutments, casting a central closure, and side shifting of the completed deck to clear the launch alignment for construction of a second and third bridge.
• Sembenelli Consulting (2000). Metrobus Valtrompia, Brescia, Italy. Owner: ASM Brescia. Procurement method: D/B. This assignment for the bid design of the Valtrompia Extension of the Brescia LRT System included 10.0km of dual-track precast segmental LRT bridges and three dual-track precast segmental extradosed LRT bridges with 80m main spans and segment geometry compatible with short-line casting of the rest of the project. As the bridge engineer-of-record, Dr. Rosignoli prepared the bid design of typical precast segmental spans and extradosed bridges, wrote technical specifications for balanced cantilever erection of precast segmental extradosed bridges, prepared bid estimates, and provided technical assistance to owner and prime designer.
• Protende (2000). Amolanas Bridge, Ruta 5 Norte, Km. 309+449, Chile. The bid design of a 22m-wide steel-composite bridge with 40, 61, 79 and 88m spans provided for incremental launching construction of the steel I-girders followed by in-place casting of the deck slab. As contractor’s consultant, Dr. Rosignoli performed critical reviews of the bid design, value-engineering design, analysis of construction means & methods, and the pre-award design of the bridge for incremental launching construction of the concrete slab over the steel girders.
• Codelfa (1999-2000). Tiziano Bridge, Alessandria, Italy. Owner: Comune di Alessandria. Procurement method: D/B. The bid design of a 17m-wide, 200m PC bridge provided for span-by-span casting of four 50m twin-box spans with an MSS. As contractor’s consultant, Dr. Rosignoli redesigned the bridge for incremental launching construction of a first 8m-wide box girder, 9m side shifting of this first half of the deck, incremental launching of the second half of the deck, and connection of the two box-girders with a cast-in-place central curb. Dr. Rosignoli also performed critical reviews of the bid design, value-engineering design, analysis of construction means & methods, pre-award design of the bridge, post-ward design of the entire bridge launching system, and technical assistance to the engineer-of-record during the post-award design and bridge construction.
• ANAS (1999). Salerno-Reggio Calabria Highway, Lot 1.1.2, Lane North, from km 8+000 to km 13+000, Salerno, Italy. Owner: ANAS. Procurement method: DBB. As engineer-of-record, Dr. Rosignoli’s duties included the preliminary and final design of numerous PC bridges; the main structure is a 540m PC bridge built as balanced cantilevers on 100m spans.
• Sembenelli Consulting (1999). Metrobus Brescia, Brescia, Italy. Owner: ASM Brescia. Procurement method: D/B. This assignment for the bid design of the Brescia LRT System included 5.9km of urban tunnels and 10.9km of dual-track precast segmental bridges. As designer’s subconsultant and engineer-of-record of all bridges, Dr. Rosignoli’s duties included optimization of span length and construction methods, the bid design of typical spans and piers, writing technical specifications for short-line match-casting and span-by-span self-launching gantry erection of precast segmental bridges, bid estimates, and technical assistance to owner and prime designer.
• Protende (1999). Pedestrian Overpasses for the Rodovia dos Imigrantes, Saö Paulo, Brazil. As contractor’s consultant, Dr. Rosignoli performed the pre-award design of a modular system of pedestrian bridges with double-arch action (convex precast segmental PC slabs supported on a concave steel tubular truss) for spans ranging from 30 to 50m, analysis of span precasting and erection techniques, and dynamic analysis of pedestrian-induced vibrations.
• Siforms (1998). Helland Bridge, Hellandsas, Norway. Client: Selmer. Procurement method: D/B. The bid design of two adjacent 600m PC bridges provided for span-by-span casting with an MSS on 70m spans. As equipment manufacturer’s consultant, Dr. Rosignoli provided critical reviews of the bid design, value-engineering design, analysis of construction means & methods, and the pre-award design of the bridge for full-span incremental launching on 70m spans with a front cable-stayed system integrating the launch nose.
• Siforms (1998). Liodden Bridge, Klokkarhaugen, Sweden. Client: PEAB. Procurement method: D/B. The bid design of a small PC bridge with 30m spans provided for span-by-span casting with advancing shoring. As equipment manufacturer’s consultant, Dr. Rosignoli performed critical reviews of the bid design, value-engineering design, analysis of construction means & methods, and the pre-award bridge design for incremental launching.
• Siforms (1998). Sykkylven Bridge, Sykkylv, Norway. Client: Selmer. Procurement method: D/B. The bid design of an 880m PC bridge provided for span-by-span casting with an MSS on 61m spans. As equipment manufacturer’s consultant, Dr. Rosignoli’s duties included critical review of the bridge design, value-engineering design, analysis of construction means & methods, and the pre-award design of the bridge for full-span incremental launching.
• Delma (1998). Structural Retrofitting of the Wadi El-Kouf Bridge, Al-Beida, Libya. Owner: Libyan Arab Jamahiriya’s Road Department. Procurement method: DBB. A 520m PC bridge designed by Morandi in the sixties with a 280m main span and rigid stays required torsional stiffening, integrative post-tensioning, bearing replacement in the central closure span, and diffused localized repairs. As contractor’s consultant, Dr. Rosignoli’s duties included structural modeling and analysis of the rigid-stayed bridge, assessment of the demand-to-capacity ratio of critical cross-sections, dynamic analysis of the seismic displacement demand on the roll bearings of the central closure span, and writing method statements for materials and construction procedures.
• ANAS (1998). Structural Retrofitting of the Trebbia 1 and Trebbia 2 Bridges, Piacenza, Italy. Owner: ANAS. Procurement method: DBB. Two adjacent 300m precast I-beam bridges required retrofitting of scoured foundations. As engineer-of-record, Dr. Rosignoli’s duties included final design of the foundation retrofitting for DBB procurement.
• IFF Federici (1997). Rufiji Bridge, Tanzania. Procurement method: D/B. The bid design of a 920m PC bridge provided for span-by-span casting with an underslung MSS. As contractor’s consultant and engineer-of-record, Dr. Rosignoli’s duties included critical review of the bid design, value-engineering design, analysis of construction means & methods, and the pre-award design of the bridge for incremental launching construction.
• Santos CMI (1997). Mocoli Bridge, Ecuador. As contractor’s consultant, Dr. Rosignoli’s duties for this 8100m² steel-composite bridge included critical review of the bid design, value-engineering design, analysis of construction means & methods, and the pre-award design of the bridge for incremental launching construction of the I-girders followed by incremental launching of the PC slab over the girders.
• Bonatti (1993-1997). Palizzi Cable-Stayed Bridge, Milan, Italy. Owner: Metropolitana Milanese. Procurement method: D/B. A 160m dual-track cable-stayed LRT bridge was incrementally launched over six railroads with the help of two temporary cable-stayed piers; on launch completion, the deck was suspended from twin pylons and the temporary piers were removed. The traffic of 360 trains a day was not slowed down, and the electric catenaries remained energized. As contractor’s technical director and engineer-of-record, Dr. Rosignoli performed the pre- and post-award design of cable-stayed bridge and launch systems.
• Bonatti (1993-1997). Palizzi Bridges, Milan, Italy. Owner: Metropolitana Milanese. Procurement method: D/B. Two adjacent 95m PC roadway bridges were incrementally launched over six railroads. The traffic of 360 trains a day was not slowed down, the electric catenaries remained energized, and the central 49m main span required the use of a temporary cable-stayed pier for launching. As contractor’s technical director and engineer-of-record, Dr. Rosignoli performed the pre- and post-award design of the two bridges and their launch systems.
• Bonatti (1992-1997). Bergamo Interchange, Seriate, Italy. Owner: ANAS. Procurement method: D/B. The 805m PC Serio River Bridge was incrementally launched over seventeen 43m spans and two 37m end spans. The project also included seven 3-span PC haunched-slab overpasses and a 1300m² bi-cellular roadway tunnel jacked into the embankment of Highway A4 with traffic running on a self-centering paved platform placed on its top slab. As contractor’s technical director and engineer-of-record, Dr. Rosignoli’s duties included the pre- and post-award design of all structures and the launch systems of the Serio River Bridge.
• Bonatti (1990-1997). All the firm’s bridge pursuits during Dr. Rosignoli’s 8-year tenure with the contractor: 80.000m² of bridges for international projects and 230.000m² of bridges for domestic jobs. Construction methods included incremental launching, balanced cantilever construction, segmental precasting, launch of steel girders followed by incremental launching of the concrete slab over the girders, incremental launching of prestressed composite bridges with steel corrugated-plate webs, and steel-composite bridges with double-composite actions. Bids included dozens of DBB and D/B projects. Structural schemes included concrete arches, steel arches, steel-composite arches, launching of continuous superstructures over arches, and multiple PC and steel-composite cable-stayed bridges. As technical director at the head of the firm’s bridge department, Dr. Rosignoli’s duties included value-engineering design and pre- and post-award bridge design at different levels of detail.
• Cogefar (1990). Aronde Viaduct of the TGV Atlantique High Speed Railway, Melun, France. Owner: TGV Atlantique. Procurement method: D/B. A 460m dual-track PC bridge was built by incremental launching on eight 49m spans and two 34m end spans. Half-span segments were cast monolithically, and 65t rebar cages were prefabricated in a rebar jig and transferred into the casting cell with a portal crane. As contractor’s expert of bridge launching, Dr. Rosignoli performed value-engineering design, analysis of construction means & methods, and pre-award design.
• Cogefar (1989). Lyon Viaduct of the TGV Atlantique High Speed Railway, Lyon, France. Owner: TGV Atlantique. Procurement method: D/B. A 560m dual-track PC bridge was built by incremental launching on 49m spans. The reinforcement cages for half-span segments were prefabricated in a rebar jig and transferred into the casting cell with a portal crane. As contractor’s expert of bridge launching, Dr. Rosignoli’s duties included value-engineering design, analysis of construction means & methods, and pre-award design.