Comansa tower crane bridge gap in North America

Each crane will reach a final hook height of 243.7 metres with hook reach of 60 metres.

COMANSA BRIDGING NORTH AMERICA

Two identical Comansa tower cranes model 21LC1050-50T have been selected to help construct a new cable-stayed bridge between Winsor, Canada and Detroit in the US. Comansa’s were selected because of their heavy lifting capabilities.

A NEW CABLE-STAYED BRIDGE BETWEEN

Windsor, Canada and Detroit is under construction. This gateway is the busiest between the US and Canada with over 20% of all trade crossing between the two countries. In response to industry and border stakeholder concerns that the existing OntarioMichigan crossings would not support the anticipated increase in traffic, a binational partnership consisting of the governments of Ontario, Michigan, Canada and the United States, identified the need for increased traffic flow between the countries. The bridge will connect Highway 401 directly to Interstate 75. The project owner, Windsor-Detroit Bridge Authority, a Canadian Crown corporation, officially started construction in October 2018.

The project cost is $5.7 billion CAD with a projected construction duration of 74 months. The private sector partner is Bridging North America, a joint venture between Dragados Canada, Flour, and AECON who is performing the construction.

Two identical Comansa tower cranes model 21LC1050-50T were selected because of the heavy lifting requirements of the structure. Each crane will reach a final hook height of 243.7 meters with hook reach of 60 meters. Capacity at jib end is 19,470 kg with maximum capacity of 50,000 kg

The 21LC1050 – 50T is a relatively new-comer to the Comansa 2100 series family developed for large civil and prefabricated precast construction projects. It meets the criteria by intricately placing the crane location relative to the structure permitting

Two identical Comansa tower cranes model 21LC1050-50T were selected because of the heavy lifting requirements of the structure.

the 1050 to accomplish the necessary The characteristics of load, reach and mechanisms of the 21LC1050 make this model ideal to offer an optimal result in large industrial or mining projects as well as for the construction of buildings with prefabricated and steel structures of great tonnage.

The design of the slewing (horizontal) part of the 21LC1050 is similar to that of the successful 21LC750 and 21LC660 and allows a much faster and safer assembly. The 21LC1050 also shares a large part of the jib and counterjib sections with them, which allows optimizing the investment to customers who already own these cranes.

Among the key features presented by the 21LC1050 is the design of its counter jib, which, like the jib, allows numerous different configurations to better adapt to the needs of each job. Always having a counterjib radius as short as possible avoids possible interference with buildings or other cranes present in the same project, thus increasing safety.

The 21LC1050 is offered with versions of maximum load of 25, 37.5 and 50 tonnes and can be erected with reach of between 30 and 80 metres with configurations every 5 metres.

The crane tower will be tied to the structure with 4 tie-in assemblies. Comansa Engineering worked closely with the Project Engineers to develop a system that will be installed and removed by the tower crane without assistance.

There were several benefits to using Comansa Tower Cranes including the ease of assembly with no pennant lines, all pin connecting tower eliminating the need for retorque, fast transfer between 4 and 8 part trolley, and Comansa’s ability to work seamlessly with the project for engineering, service, and other requirements.