Waschmühltal bridges
| Waschmühltal bridges | |
|---|---|
 The old Waschmühltal bridge near Kaiserslautern |
|
| Data | |
| place | Kaiserslautern |
| builder | Reichsautobahn |
| architect | Fritz Todt, Paul Bonatz |
| Architectural style | sandstone-clad reinforced concrete construction (old bridge), steel composite construction (new bridge) |
| Construction year | 1935–1937 (old bridge), 2011–2013 (new bridge) |
| height | 32 meters (old bridge) m |
The Waschmühltalbrücken are two parallel bridges as part of the BAB 6 and span the steeply cut Waschmühltal with the district road K 2 from Kaiserslautern to Morlautern north of the city of Kaiserslautern .
The 263.4 m long vault bridge was built between 1935 and 1937 as a section of the Reichsautobahn Mannheim-Saarbrücken. As part of the six-lane expansion of the motorway, the listed bridge was supplemented between 2011 and 2013 by a new northern building running parallel to it .
Vault bridge
The building, which has been a listed building since 1984, consists of two vaulted bridges, each designed for one lane with two lanes. The Stuttgart architect Paul Bonatz designed the building. A model of the bridge is in the Deutsches Museum .
The 263.4 m long vaulted row bridges stand next to each other at a clear distance of 4.0 m and span the valley at a maximum height of 32 m. They consist of a sequence of ten arches with clear widths of 19.7 m, which rest on pillars with a center distance of 22.7 m. The vaults are 8.50 m, m at the apex of 0.80, and the fighter 1.20 m thick. They were built with red Palatinate sandstone blocks. The pillars, tapering upwards with a pillar suit of 40 to 1, and the vault gussets have a core made of stamped concrete and a walling made of red sandstone in an orderly layered bond.
Regarding the design of the bridge structure, Ruven Theobald writes in the Kaiserslautern architectural guide for the history and theory of architecture at the TU Kaiserslautern :
“Due to the time it was built, the Waschmühltal Bridge cannot be viewed separately from the ideological ideas of National Socialism. The stone arch bridges mark a high point within the bridge ideology of this time. In the pursuit of ever more monumental forms, there was a move away from light and dissolved constructions. In contrast, the Waschmühltal Bridge stands out due to its specific design. The separation of the carriageways, the relatively slim conical pillars and the high arches with the narrow arches give it a comparatively great lightness. Due to the lack of solidity, the monumentality is not decisive for the appearance of the bridge. "
For the six-lane expansion of the motorway, the two existing arched bridges, which have remained practically unchanged since their construction, are being renovated and provided with a continuous, shared carriageway slab. This closes the atrium between the two bridges. A 3.00 m high noise protection wall will be erected on the south side. Construction work is scheduled to begin in autumn 2014.
Extradosed bridge
The new bridge is a four-span steel composite construction with a length of 265.50 m. The spans are 45.40 m, 68.10 m, 68.10 m and 45.90 m. The superstructure has the support system of an extradosed bridge . The two main girders on the outside, designed as tightly welded hollow boxes made of steel, are suspended from flat inclined cables that are anchored in 8.0 m high steel masts. In addition, they are rigidly connected to the reinforced concrete columns and together with the cross members form a rigid frame both in the longitudinal and in the transverse direction. The 35 cm thick and 18.25 m wide reinforced concrete deck is supported by cross beams that are 3.24 m apart.
literature
- Roland May : Pontifex maximus. The architect Paul Bonatz and the bridges. Monsenstein and Vannerdat , Münster iW 2011, ISBN 978-3-86991-176-2 , pp. 289-297, 533f., 617f.
Web links
- Wasmül Valley Bridge
- Waschmühltalbrücke in the architecture guide
- Waschmühltal bridges. In: Structurae
- Pictures of the construction of the new Waschmühltal bridge
Individual evidence
- ↑ Landesbetrieb Mobility Rhineland-Palatinate: Documentation Realization Competition Lautertalbrücke ( Memento of the original from June 11, 2015 in the Internet Archive ) Info: The archive link was inserted automatically and not yet checked. Please check the original and archive link according to the instructions and then remove this notice. (PDF; 2.0 MB)
- ↑ Waschmühltalbrücke in the architecture guide
- ↑ Landesbetrieb Mobility Rhineland-Palatinate: Construction projects - Waschmühltalbrücke ( Memento of the original from September 11, 2014 in the Internet Archive ) Info: The archive link has been inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
Coordinates: 49 ° 27 '24.1 " N , 7 ° 45' 39.6" E