Your browser is no longer supported

For the best possible experience using our website we recommend you upgrade to a newer version or another browser.

Your browser appears to have cookies disabled. For the best experience of this website, please enable cookies in your browser

We'll assume we have your consent to use cookies, for example so you won't need to log in each time you visit our site.
Learn more

ROOFTOP DRAMA

ROOFTOP DRAMA: Built in 1974, the 143m high Selmi tower in Frankfurt, Germany is currently being refurbished by contractor Hochtief. But with part of the work on the now named City House involving addition of an escape stairway on the outside of the building, the tower crane required for construction work could not be anchored to the outside as usual. Instead the Liebherr 71C was mounted on the roof, erected from the air. The operation, planned and carried out by Streif Baulogistik, took just three hours using a chartered Kamov heavyduty helicopter. The crane stands on a cruciform foundation measuring 3.8m by 3.8m, made up of two 12m tower sections and a 33.4m jib. Modules weighed between 1,500kg and 4,100kg, well within the capacity of the Kamov which can lift up to 5000kg.

Have your say

You must sign in to make a comment

Please remember that the submission of any material is governed by our Terms and Conditions and by submitting material you confirm your agreement to these Terms and Conditions. Please note comments made online may also be published in the print edition of New Civil Engineer. Links may be included in your comments but HTML is not permitted.