
Roof lifting / San Mamés Stadium, Spain
Primarily assembled on the ground, the cable structure was then lifted to its final position at a 50 m height, with 160 strand jacks simultaneously monitored by video.
Whether occurring during a design-build project or as a primary step to perform repair or maintenance activities, lifting or handling heavy structures remains challenging. It demands control over the stresses induced in the structure throughout the whole process. Conducting such operations requires engineering expertise, reliable equipment, careful operating, and precise placement. Relying on skilled and experienced teams and thorough risk management to ensure worker safety, structure preservation, and worksite surroundings protection is essential, especially when these operations are carried out in dense urban areas.
From cable-stayed bridge rotation to stadium roof lifting, from underpass bridge sliding to hauling-up of water tower tanks, through to jacking-up operations, we will offer you the most appropriate solutions, especially when other conventional installation methods are impractical, risky or too costly.
Complex projects may often necessitate to combine several operations, especially when adjusting the structure in its final position. This is where our expertise, specialist teams and capability to drive and manage the project in all aspects will make the difference.
From the early stages of the proposal, Freyssinet and Hebetec Engineering will include a primary concept design for the structure’s heavy lifting and / or handling. In a second stage, our teams develop the preliminary and detailed design of the operation, based on our clients’ input.
We will ultimately define the optimal solution that meets your specifications in terms of safety, structural integrity, efficiency, phasing of works, budget, and lead times.
Combining our expertise with the know-how of our sister company Hebetec Engineering, we propose a range of lifting and handling equipment whose precision and real-time control capabilities enable a strict management of the entire operation. Our specialist teams will provide the most appropriate equipment to meet your needs.
Credit: Courtesy picture by ©Sam Burbank CEC
Most lifting or jacking operations require the additional use of temporary structures. Together with Hebetec Engineering, our expert teams offer a guaranteed turnkey service including the design, supply, and installation of Megasteel® and Mega-tube structures, and performance of structural checking and loading controls.
Combining Freyssinet & Hebetec Engineering experience, our specialist teams can conduct the lifting or handling operations safely while ensuring regular checking on permanent structures at all works stages.
Roof lifting / San Mamés Stadium, Spain
Primarily assembled on the ground, the cable structure was then lifted to its final position at a 50 m height, with 160 strand jacks simultaneously monitored by video.
Bridge lowering / Oakland Bay Bridge, USA
As part of demolition works in San Francisco Bay, lowering of five 1,600-ton bridge trusses onto barges from heights up to 50 metres, using strand jacks while ensuring stable load balance during the execution operated at a speed of up to 14 m/h.
Temporary structures / Atlantic Bridge, Panama
As part of the construction of the cable-stayed bridge with the longest concrete deck span in the world (530m), delivery of a Megasteel self-erecting system to temporarily support the 120-ton formwork and 1,600-ton bridge concrete elements.
Eolift / Santa Monica wind farm, Brazil
Development of a new concrete tower design based on the use of precast segments (match-casting method), and of an innovative erection method. Added value of these innovations: construction time frame and cost reductions, lower carbon footprint than conventional steel towers.
Heavy lifting / Forth Crossing Bridge, Scotland
Supply of strand jacks, hydraulic systems and control units to operate the six traveller steel frames used to lift bridge decks from barges into position during the construction of the world longest three-tower cable-stayed bridge. Installation supervision and execution of the system operation was conducted by Hebetec as well.
These operations can be performed at ground level on a short distance, and at heights, when heavy structures are shifted to their final position or when heavy loads are removed from their current position. These methods apply to new build projects, structure dismantling or when replacing part of an existing structure.
Lateral sliding / Lennetal Highway Bridge, Germany
It took less than 6 hours to move the 30,000 ton, 1,000-metre-long Bridge by 19.15 meters sideways in its final position.
Load out / Oil Rig Baronia at Ulsan, Korea
17’000 ton weighing oil rig was shifted to load on bord of a barge and eventually put into operation in the Gulf of Thailand
Combined APS sliding & heavy lifting operations / Ashalim Solar Power Station, Israel
APS sliding of a 2,300t. boiler on 64 m from the assembly area to the power station tower
Bridge launching / Bowstring bridge, Casablanca, Morocco
The 330-ton steel structure of the Bowstring Bridge was launched over the A3 city highway crossing. The operation took place overnight, resulting in a short traffic closure and minimal disruption as the arch bridge was pre-assembled next to the roadway.
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