Impressive shots of the work on the Calatrava canopy at OAKA, workers hanging from a height of 62 meters

Stunning footage has emerged of the enactment being carried retired precocious connected the Kalatrava stadium astatine the OAKA shot stadium.

The Coordinator and General Manager of OAKA, Konstantinos Khalioris, made a station connected his idiosyncratic Facebook account, successful which helium published images of workers hanging from a tallness of 62 meters, wherever the highest constituent (upper arch) is located from the basal of the stadium’s construction.

Khalioris notes that “the complexity of the project is exacerbated by the information that each of the enactment is performed astatine large heights, which requires specialized entree systems, systematic information protocols and highly trained personnel. The conditions of moving astatine specified a height, combined with the usage of ultra-high unit instrumentality and the request for precision of application, marque the task peculiarly analyzable and technologically demanding.”

“At the aforesaid time, the operation tract operates connected a 24-hour basis, with changeless rotation of specialized crews, successful bid to strictly adhere to the established schedules and method milestones of the project.Continuous operation, combined with the precocious grade of method difficulty, requires fantabulous coordination, elaborate readying and implementation of precocious task absorption procedures, ensuring the uninterrupted advancement of the work,” stresses the Coordinator and General Manager of OAKA.

He concludes his station by underlining that “With the completion of the works, OAKA enters a caller era, with enhanced structural safety, accrued resilience and a importantly improved level of reliability. This emblematic infrastructure task is turning a caller page, looking to the aboriginal with greater security, optimism and technological upgrades, gathering the modern requirements of operating and hosting large planetary events“.

A task worthy €80 cardinal successful 14 months

It is recalled that successful January 2025, the task “Structural and operational rehabilitation of the 2 structures of the Central Stadium and the Cycling Track of the Olympic Sports Centre of Athens – Olympic Athletic Centre – OAKA” was announced with an estimated worth of 63.09 cardinal euros excluding VAT oregon 78.23 cardinal euros including VAT and with a duration of 14 months from the signing of the contract.

The nonsubjective of the task is the repair of the problematic points and the implementation of the indispensable procedures for the restoration of the required level of structural adequacy of the metallic structures of the 2 emblematic roofs of the OAKA, arsenic good arsenic the attraction – repair – replacement of elements of the metallic structures and polycarbonate panels of the roofs of this sports facility.

The 2 alloy arches of the structure are 80 metres high, 304 metres agelong each and person a full value of 9 000 tonnes. The full extortion has an country of 25,000 quadrate metres.

The task successful numbers:

– 500 tons of full value of screws of assorted sizes

– 1,800 km magnitude of welds

– 80 meters the tallness that the aerial technicians volition climb

– More than 27 meters the extent of the foundations

– 10 km of metallic cables

– 116 beams ranging from 33 to 54.8 metres successful magnitude that are welded to the 2 arches

– 304 metres agelong and 80 metres precocious metallic domes to beryllium repainted

– EUR 78.23 cardinal including VAT for the outgo of maintenance

– 25,000 quadrate metres of country covered by the polycarbonate panels, each measuring 1 x 5 metres

The station of the Coordinator and General Director of OAKA, Konstantinos Chaliori, is detailed:

“The Calatrava canopy works of OAKA are successful afloat swing.

The mentation of the metallic surfaces of the structure is carried retired done ultra-high unit h2o blasting, successful accordance with the requirements of ISO 8501-4 modular and cleaning people Wa2, passim the full construction. This is simply a highly demanding and specialised process, which is carried retired with h2o blasting instrumentality with a unit of up to 2500 bar, utilizing due precocious show nozzles and a controlled exertion region of 10-30 cm from the surface. The process is performed with precocious precision transverse movements successful bid to execute azygous cleaning and implicit removal of corrosion products, deposits and residues of aged coatings, without causing accent oregon deterioration of the metallic substrate.

In areas of accrued pathology of the structure, arsenic good arsenic successful captious areas specified arsenic bolted joints, welds and geometric discontinuities, an further de-scaling process up to PSa2 people is applied, with the purpose of afloat restoring the metallic aboveground and creating a suitable substrate for the caller corrosion protection. This differentiated method attack requiresa precocious level of expertise, arsenic each aboveground is evaluated and treated based connected its structural condition, loads and durability requirements of the structure.

After the cleaning process is complete, anew, precocious corrosion extortion system is applied, selected according to the grade of cleaning and the information of the existing paintwork. This strategy includes high-tech coatings with peculiar admixtures and improved mechanical and chemic properties, exceeding the durability requirements acceptable for the circumstantial construction. The exertion is carried retired nether strict power of biology conditions, adust movie thickness (DFT) and adhesion, ensuring semipermanent corrosion extortion of the metallic structure.

A peculiar method attack is applied to the arch hangers, wherever the caller outer anti-corrosion overgarment strategy includes specialised resins and high-strength reinforcing fibres. Materials are selected to guarantee compatibility with the existing interior extortion system, ensuring the functional continuity of the corrosion extortion strategy and avoiding incompatibility betwixt aged and caller coatings, which requires peculiar acquisition and expertise successful large-scale analyzable metallic structures.

After completion of the h2o blasting and earlier the exertion of the caller coatings, an extended method inspection of the operation is carried out. In particular, non-destructive investigating of the welds is carried retired utilizing ultrasonic investigating (UT), with the purpose of detecting imaginable failures, microcracks oregon interior discontinuities. At the aforesaid time, a afloat tightening cheque of each bolted connections is carried out, with replacement of worn oregon non-compliant bolts, ensuring the structural integrity and operational information of the structure.

The complexity of the task is compounded by the information that each enactment is carried retired astatine a large height, up to 62 metres from the basal of the operation (maximum precocious arch height), which requires specialised entree systems, strict information protocols and highly trained personnel. Working conditions astatine specified a height, combined with the usage of ultra-high unit instrumentality and the request for precision of application, marque the task peculiarly analyzable and technologically demanding.

At the aforesaid time, the operation tract operates connected a 24-hour basis, with a changeless rotation of specialized crews, successful bid to strictly adhere to the established schedules and method milestones of the project. The continuous operation, combined with the precocious grade of method difficulty, requires fantabulous coordination, elaborate readying and implementation of precocious task absorption procedures, ensuring the uninterrupted advancement of the work.

The task is financed done the Development Fund, with the enactment of the Super Fund, underlining the strategical value of the involution for the upgrading of the nationalist sports infrastructure. It is an concern of precocious method value, incorporating modern technologies for the attraction and rehabilitation of ample metallic structures.

With the completion of the works, OAKA is entering a caller era, with enhanced structural safety, accrued durability and a importantly improved level of reliability. This emblematic infrastructure task is turning a caller page, looking to the aboriginal with greater safety, optimism and technological upgrading, gathering the modern requirements of operating and hosting large planetary events.”