Concrete Arch Bridges

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


	Leonhardt, Andrä and Partners have designed concrete arch bridges for pedestrians, roads and railways, with spans up to 280 meters. The following slides show two aesthetically pleasing pedestrian bridges.

PEDESTRIAN BRIDGE ACROSS THE ENZ RIVER AT MÜHLACKER
(1961)

Span of arch 46 meters, arch rise 3 meters, corresponding to the extreme slenderness ratio of 1:15.

Design.

Ref: Leonhardt, F.: Bridges. Deutsche Verlagsanstalt, Stuttgart, 1982, pp 96, 97.

PEDESTRIAN BRIDGE ACROSS THE REMS RIVER AT WAIBLINGEN
(1975-76)


	Width 3.7 to 4.1 meters, span of arch 28.0 meters, arch height 3.0 meters, corresponding to a slenderness ratio of 1:9. Foundation on concrete piles with diameters of only 20 centimeters.

Design.

Ref: Leonhardt, F.: Bridges. Deutsche Verlagsanstalt, Stuttgart, 1982, pp 96, 97.


	H34. Overall view.



	H35. Detail of handrails, consisting of red rods, 10 millimeters diameter, of high strength steel (St 1400/1600).


	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