High-Rise Buildings

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	*National Information Service for Earthquake Engineering* *University of California, Berkeley*


	The following are high-rise buildings developed by Leonhardt, Andrä and Partners.



		H104. Lifting deck-slabs.


	H105. The finished building.

BED-TOWER FOR THE HOSPITAL OF THE UNIVERSITY OF COLOGNE
(1970-73)

The 18-story, 84-meter high “Bed-Tower” provides room for 1136 beds. The structural system of this building with suspended floor consists of:

the core for stairs, lifts, installation, etc., erected by climbing formwork.
the prestressed girders on top of the core built by incremental launching (see also Sec. 1.4).
the tension members which suspend the slab are much more slender than columns. Thus, utmost utilization of space is obtained.
the slabs cast on the ground and lifted to their final position.

Preliminary and final structural design.

MULTI-STORY RESIDENCE “SCHLANGENBADER STRASSE” OVER CITY FREEWAY, BERLIN
(1975-81)



	H106. Overall view.


	First European multi-story residence of 1200 apartments built over a structurally independent Autobahn tunnel. Length 450 meters, width 56-72 meters, maximum height 15 stories, corresponding to 46 meters. The Autobahn tunnel has lengths of 275 meters and 215 meters without joints. Due to unexpected unequal settlement of individual foundations, the load-transfer of the very stiff structure had to be studied carefully.


	H107. Freeway with tunnel entrance.

Alternate and final structural design.

References:

Falkner, H.: “Die Stadtautobahnüberbauung Berlin, Berechnung und Konstrucktion (The Multi-Story Residence Building over the Autobahn in Berlin. Design and dimensioning),” Beton- und Stahlbetonbau (1979), pp 301-306.

Falkner, H.: “Local Unexpected Settlements of the Multi-Story Structure SAB in Berlin,” IABSE 11th Congress, Vienna, 1980, Final Report, pp 1075-1080.

Falkner, H. and Hinke, U.: “Nonlinear Behavior of a Large Highway Superstructure in Berlin,” IABSE Colloquium on Advanced Mechanics of Reinforced Concrete, Delft, 1981, Final Report, pp 731-733.


	The University of California, Berkeley Copyright 1997, The Regents of the University of California. Structural Engineering Slide Library, W. G. Godden, Editor Set H: Structures of Leonhardt, Andrä and Partners