A first for Aertssen in the magnificent Sultanate of Oman.
The total project, worth over $5billion, was divided into several packages. The JV Mobilift & Partners and Aertssen Machinery Services was contracted for the full lifting services to complete 2 airplane hangars, this from engineering until completion of all lifting activities. The package Aertssen received in the JV was to lift all heavy items for the steel structure for these enormous Hangars. Therefore we used 2 Terex CC2400-1 (400tons Crawler cranes) and 2 Hitachi SCX 1500/3 as assistants cranes. The hangars covers almost 18,000 sq. meters and have a span of 100 meters each
To complete this job, Aertssen’s comprehensive engineering knowledge was combined with our historic experience and knowhow in lifting complicated and heavy-weight steel structures. During this project AMS completed at least 10 tandem lifts of which 8 box trusses of 168ton and 2 door trusses of 386 tons needed to be put in place . The latter had to be performed with utmost care and precision as 8 lifting points were used to lift these elements and put in place. For lifting one of the door trusses the operators and cranes held the element for 48 hours in place as this the time it took to seal the truss in the structure. Critical factors, such as ground bearing pressure, maximum wind speed, capacity, element dimensions and weight etc … were used to develop detailed lifting plans.
Aertssen did not only complete the erection activities but was also in charge of full engineering, lift supervision, testing and rigging operations. All perfectly executed in close cooperation with our customer, TigerSteel, and our JV Partner in Oman, Mobilift & Partners.