When a single construction site requires 15 tower cranes working in concert, the logistics of crane selection, transportation, assembly, and coordination become as demanding as the structure itself. The new Ferenc Puskás Stadium in Budapest, Hungary, stands as a case study in large-scale crane deployment for major infrastructure projects. Built on the exact footprint of its 1953 predecessor : demolished in 2016 : the stadium spans over 984 feet in length and rises 164 feet at its highest point, accommodating 67,000 spectators upon its scheduled completion in late 2019. The crane fleet assembled for this project drew heavily from Terex models supplied by Hungarian rental specialist TDH Toronydaru Kft., supplemented by a Demag CC 6800-1 crawler crane for the heaviest roof lifts. Understanding how these machines were selected, transported, erected, and coordinated offers valuable insights for any construction professional managing Building Wrap Selection Installation and Performance of Weather on large worksites where multiple lifting systems must operate without conflict.
Project Overview: The Scale of Budapest’s New Landmark
The Ferenc Puskás Stadium project began in early 2017 on the same site as the original stadium built in 1953 and demolished in 2016. The new venue was designed to meet UEFA’s highest category standards, enabling it to host Euro 2020 matches and future international events. The construction program demanded an aggressive timeline of under three years from groundbreaking to ribbon-cutting, which placed extraordinary pressure on the lifting and material-handling strategy from day one.
Key Project Specifications
| Parameter | Value |
|---|---|
| Total capacity | 67,000 spectators |
| Site length | Over 984 ft (300 m) |
| Maximum height | 164 ft (50 m) |
| Construction start | Early 2017 |
| Scheduled completion | November 2019 |
| Total tower cranes on site | 15 units |
| Primary crane supplier | TDH Toronydaru Kft. |
| Primary crane manufacturer | Terex |
| Heavy-lift crawler crane | Demag CC 6800-1 |
The decision to concentrate 15 tower cranes on a single footprint was driven by the overlapping demands of concrete placement, rebar installation, prefabricated element positioning, and steel structure assembly. Each crane had a designated work zone, and the combined lifting capacity had to cover every corner of the stadium bowl and roof simultaneously.
Selecting the Tower Crane Fleet: Why Terex Dominated the Site
The 15-tower-crane fleet at Ferenc Puskás Stadium was overwhelmingly composed of Terex models. TDH Toronydaru Kft., the Hungarian crane rental company supplying most of the units, selected Terex equipment for two primary reasons: suitability to the worksite requirements and availability of sufficient units with the needed height and lifting capacity within Hungary’s crane pool.
As TDH Technical Manager Sandor Zubor explained, very few cranes of comparable size in the country could have tackled the work required at this site. The Terex lineup at the stadium included the following models, each chosen for specific lift profiles:
- Terex GTS 511B : a compact top-slewing crane suitable for lighter lifts in confined areas around the stadium perimeter
- Terex CTT 91-2.5 : a medium-capacity luffing-jib tower crane offering a 2.5-tonne tip load with good radius coverage for mid-level structural work
- Terex CTT 91-5 : a higher-capacity variant of the CTT 91 series with a 5-tonne tip load, used where heavier concrete buckets and rebar bundles were required
- Terex CTT 181 : a larger luffing-jib crane providing extended reach and higher load capacity for the stadium’s intermediate roof and upper-tier sections
- Terex CTT 331 : the largest Terex tower crane on site, delivering the highest combination of hook height and lifting capacity for the most demanding tower crane lifts
Hook heights across the fleet ranged from just under 105 ft to 279 ft, ensuring that every lift requirement on the site could be met by at least one crane in the network. Most cranes were mounted on foundation anchors for maximum stability, though some units were undercarriage-mounted where site conditions required mobility or where future repositioning was anticipated.
Transport and Assembly Logistics
The proximity of TDH’s depot to the worksite was a significant logistical advantage. With only 7.5 miles separating the two locations, transport time per load was approximately 30 minutes. Despite this short distance, the sheer number of components required between 80 and 100 truck runs to move all 15 cranes to the site.
Assembly efficiency was equally critical. TDH deployed teams of 12 to 14 riggers and technicians per crane, and the Terex design simplified the erection process:
- Smaller models such as the CTT 91 were erected in a single day
- Larger units such as the CTT 331 required three to four days of assembly work
- The ease of assembly was noted by TDH General Manager Dr. Oliver Vonhauser as a decisive factor in maintaining the project schedule
For foundation work supporting these cranes, project teams needed stable substrates capable of bearing substantial loads. Readers working on similar large-scale projects can reference guidance on Building a New Concrete Slab Over Foundation Rubble and Building a New Slab Over Foundation Rubble when preparing crane base pads and working platforms.
The Demag CC 6800-1: Delivering the Heavy Roof Structure
While the 15 Terex tower cranes handled the bulk of material movement across the stadium, the heaviest and most technically demanding lifts fell to a single crawler crane: the Demag CC 6800-1, operated by Sarens. This machine was tasked with lifting the steel joists that form the stadium’s roof structure : the most critical structural element of the entire project.
Intercontinental Transport
The Demag CC 6800-1 did not come from a nearby depot. It was shipped from its previous worksite in Peru to the port of Antwerp, Belgium : a sea voyage lasting 25 days. From Antwerp, the crane was transported by road to Budapest. This added a layer of international logistics coordination that most construction projects never encounter.
Setup and Site Preparation
Setup time for the Demag CC 6800-1 at the stadium site was approximately two weeks. The preparation work included:
- Paving the ground where the crane would travel and operate to ensure adequate bearing capacity
- Assembling the Superlift system, a derrick-type attachment that increases the crane’s lifting capacity by adding a counterweight on a trailing boom
- Preparing the Self-Propelled Modular Transporter (SPMT) modules required for moving the crane components into position
The confined space available on the worksite added considerable difficulty to the setup operation. The Sarens team had to maneuver large crane components into a packed construction site where 15 tower cranes were already operating, leaving limited laydown area. Despite these constraints, the team completed the setup on schedule.
Roof Steel Lifting Specifications
The Demag CC 6800-1’s primary task was lifting steel joists for the stadium roof. The lifts fell into two categories with distinctly different load-radius requirements:
| Roof Zone | Joist Weight | Lift Radius | Total Structures Lifted |
|---|---|---|---|
| Outside roof area | 138 tons | 115 ft | Part of 75 total |
| Inside roof area | 94 tons | 213 ft | Part of 75 total |
In total, the Demag CC 6800-1 lifted 75 steel structures for the roof assembly. The heavier (138-ton) outside joists needed a tighter radius because the crane could work closer to the stadium’s outer ring, while the lighter (94-ton) inside joists required a longer reach of 213 ft to place steel toward the center of the roof span. For project teams managing complex lifting operations, the Tower Cranes and Material Hoisting Equipment in Construction resource provides additional detail on load charts, radius planning, and crane selection criteria.
Multi-Crane Coordination and Operational Management
Operating 15 tower cranes plus a heavy crawler crane simultaneously on a single construction site presents coordination challenges that go far beyond what most projects encounter. Every crane has a swing radius, a blind spot, and a load path that must not intersect with another crane’s operating zone. The Ferenc Puskás Stadium project addressed this through several key strategies.
Zoned Lifting Coverage
The tower cranes were positioned so that their combined coverage overlapped the entire stadium footprint without gaps. Hook heights ranged from just under 105 ft to 279 ft, creating a three-dimensional grid of lifting zones. Each crane was assigned a specific set of lifts within its designated area, minimizing the need for cranes to cross each other’s paths.
Inverter Drive Technology for Speed Control
One of the most important technical features enabling smooth multi-crane operation was the inverter drive technology installed on all Terex tower cranes. Inverter drives allow precise control of motor speed and torque, which translates directly into:
- Variable working speeds that can be tuned to match the pace of surrounding cranes
- Smoother acceleration and deceleration, reducing pendulum sway on suspended loads
- Improved maneuverability in tight spaces where multiple cranes share overlapping radii
- Energy efficiency through regenerative braking on load descent
As Peter Nagy of the TDH Sales Team noted, the ability of tower crane operators to communicate effectively with each other and with the Demag crawler crane operator was extremely advantageous. Good communication protocols, combined with the speed-control flexibility of inverter drives, allowed the team to coordinate movements without dangerous conflicts.
Mobile Crane Integration
In addition to the tower cranes and the Demag crawler, mobile cranes were also used at various stages of the project. Coordinating mobile cranes : which move around the site and change their lifting positions : with fixed tower cranes required an extremely precise and conscientious approach. Tibor Major, who helped prepare the project, emphasized that the challenge with so many cranes at a worksite this large was coordinating them so that work proceeded smoothly without delays or safety conflicts.
Scope of Lifting Operations
The variety of lifts handled by the crane fleet was exceptionally broad. Typical daily operations included:
- Lifting concrete buckets for the stadium bowl and foundation pours
- Hoisting rebar bundles for reinforcement placement
- Installing prefabricated steel elements for the structural frame
- Positioning prefabricated concrete elements for the seating tiers and facade
- Supporting the Demag CC 6800-1 with preparatory lifts during its setup
The project timeline called for all tower crane work to be completed by February 2019, well ahead of the stadium’s November 2019 completion date. This schedule gave the team a buffer period for final finishing works, roof cladding, and interior fit-out before the venue was handed over for Euro 2020 preparations.
Key Takeaways for Large-Scale Crane Deployment
The Ferenc Puskás Stadium project offers several lessons for construction teams planning major worksites that require dense crane populations:
- Match crane models to specific lift profiles : The Terex fleet covered a deliberate range from the compact GTS 511B to the heavy CTT 331, ensuring every lift had a crane with appropriate capacity and reach without over-specifying.
- Prioritize local availability for tower cranes : Choosing a supplier with a depot only 7.5 miles from the site reduced transport cost, simplified logistics, and enabled rapid response to any equipment issues.
- Plan for international logistics on heavy crawler cranes : When a specialist machine like the Demag CC 6800-1 is required, include 4 to 6 weeks of international transport time in the project schedule.
- Invest in inverter drive technology : Variable speed control on tower cranes dramatically simplifies multi-crane coordination, reducing both safety risks and operator fatigue.
- Design crane base pads with adequate bearing capacity : Foundation-mounted cranes require engineered bases that can handle the overturning moments and vertical loads specified in the crane manufacturer’s foundation data.
By applying these principles, construction teams can replicate the operational efficiency achieved at one of Hungary’s largest active worksites, delivering complex structures on schedule with a coordinated fleet of lifting equipment.