Luitpold Bridge (Munich)

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The Prinzregentenbrücke (1901)

The Luitpold Bridge , named after the Bavarian Prince Regent Luitpold (also known as the Prinzregentenbrücke ), is a stone arch bridge over the Isar in Munich .

location

The Luitpoldbrücke connects Munich city center ( Lehel district ) with the Bogenhausen and Haidhausen districts on the right bank of the Isar . It is part of Prinzregentenstrasse and lies at the feet of the Angel of Peace .

history

Steel bridge

Steel bridge, 1891–1899

In 1891, based on the ideas of the architect Friedrich von Thiersch, a steel bridge was built over the Isar as part of the Prinzregentenstrasse, which was paid for by Prince Regent Luitpold from his own box . The plans for the segment arch bridge with a roadway elevated on the three- hinge arch came from Max von Siebert , head of the Royal Supreme Building Authority , and Heinrich Gerber made the calculations ; the steel parts were supplied by Maschinenbau-Aktiengesellschaft Nürnberg , later MAN . It was the first and only arch bridge made of iron or steel in Munich, the other iron or steel bridges such as the old Max Joseph Bridge or the Braunau Railway Bridge were built as truss bridges . On September 13, 1899, a flood by far exceeded the previously known highs and initially led to the collapse of the Max Joseph Bridge. A day later, the right abutment of the Luitpold Bridge was so undermined that this bridge also collapsed.

Stone bridge

New Luitpold Bridge (1901) seen from the southwest

Prince Regent Luitpold had agreed to finance the new building immediately after the flood. In 1901 the stone bridge that still exists today was built. Theodor Fischer , head of the Munich city expansion department, designed the bridge, and Sager & Woerner, which was still based in Aschaffenburg at the time, designed and built the bridge . Karl von Leibbrand , who in 1893 had used a three-hinged arch in a solid concrete arch bridge for the Munderking Danube bridge for the first time, was called in as an expert . The river profile has been expanded to also allow volumes of water such as the flood of 1899 to pass through. Representative embankment walls were erected on both sides of the bridge, the costs of which ultimately exceeded those of the bridge structure. For the 63 m spanning arch of the bridge, more pressure-resistant shell limestone was chosen instead of concrete , which was still little tried at the time , which was obtained from quarries in Marktbreit, Kirchheim (Lower Franconia), Randersacker and Winterhausen south of Würzburg.

After a construction period of 13 months, Prince Regent Luitpold handed over the bridge, which still exists today, to the city of Munich on September 29, 1901. The decoration with the figures on the abutments was completed in 1903. The following inscriptions were placed on the left bank wall on both sides of the bridge below the figures:

LUITPOLD
PRINZREGENT
OF BAVARIA
HAD
THIS BRIDGE
BUILT 		HIS
LOVERS HEAD
AND
RESIDENCE CITY
MUNICH
1900 - 1904

The damage caused by the Second World War was repaired in 1953. In 1962 a 25 cm thick reinforcement of the old cap vault was installed in prestressed concrete and a seal was installed under the roadway, and the roadway was widened from the original 9.00 m to 12.00 m and the sidewalks from 4.10 m to 2.60 m each m decreased. In 1997 the bridge was renovated.

Technical specifications

The bridge spans the Isar with a single flat three-hinged arch, which has a clear width of 62.4 m and an arrow height of 6.5 m. The length from anchor head to anchor head is 67.15 m. The arch is 1.00 m thick at the top and 1.20 m thick at the fighters. The arc of a circle segment allowed a simple stone cut. Cast iron joints are built into the fighters and in the crown. The joint in the vertex is covered on the upstream side by a copper coat of arms of the Kingdom of Bavaria surrounded by garlands, on the downstream side by a coat of arms of St. Nepomuk . On the stone arch are small square pillars made of brick masonry that support the roadway. These pillars are stiffened halfway up by a concrete slab. The side of the bridge is clad with shell limestone. The carriageway slab protrudes over the parapet walls via a cantilevered limestone band on English house stone consoles. The approximately 40 cm wide and 1 m high parapet consists alternately of fields closed in rhythm and made transparent by balusters. The balustrade cover stones are strongly profiled. The bridge is 17.20 m wide between the parapets. The abutments consist of rammed concrete, their foundation extends up to about 1.00 m in the marly Flinz . The Flinz was found at this point up to a depth of 27 m. The lower edge of the foundation base is about 6 m below the Isar base. The bridge has a load capacity of 60 t.

Sculptures

Four large stone sculptures are placed approximately in the middle of the wing walls on both sides of the river. The reclining figures symbolize the four Bavarian tribes or parts of the country:

  • Bavaria

  • Swabia

  • Francs

  • Palatinate

Others

A commemorative medal was issued to commemorate the inauguration of the bridge.

See also

literature

  • Festschrift for the inauguration of the Prinzregentenbrücke in Munich on September 28, 1901. Munich 1901.
  • Philipp M. Halm: The new Munich bridge structures. In: Moderne Baufformen , Volume 5, 1906, No. 5, pp. 145–156.
  • Kai Lucks: The Munich Isar Bridges in the 19th and early 20th centuries. (5 volumes) Dissertation, Technical University of Munich, 1976.
  • Christoph Hackelsberger: Munich and its Isar bridges. Hugendubel, Munich 1981, ISBN 3-88034-107-9 .
  • Friedrich Standfuss: Stone Bridges in Germany. 1988, ISBN 3-7640-0240-9 .
  • Construction department of the state capital Munich (ed.), Christine Rädlinger : History of the Munich bridges. Franz Schiermeier Verlag, Munich 2008, ISBN 978-3-9811425-2-5 .

Web links

Commons : Luitpoldbrücke  - collection of images, videos and audio files

Coordinates: 48 ° 8 ′ 30 "  N , 11 ° 35 ′ 42.9"  E