Germany - Construction work for bridges

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Details

Provided by Open Opps
Opportunity closing date
17 May 2022
Opportunity publication date
15 April 2022
Category
45221100: Co
Value of contract
to be confirmed
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Description

The services to be tendered here comprise the replacement and partial dismantling of the existing flyover, ASB No. 4610 5030, over two electrified tracks of Deutsche Bahn AG (railroad line 2801: Hagen - Dortmund) in Wetter (Ruhr).The flyover crosses and connects Bundesstraße 234 in the course of Ruhrstraße with Friedrichstraße (B226) and Kaiserstraße by means of a traffic circle. The aforementioned roads cross the aforementioned railroad line in this area. A traffic circle is located on and next to the structure, into which Ruhrstrasse, Friedrichstrasse and Kaiserstrasse merge. This will be restored after completion of the structural part.Essentially, for the final state, the total area on and next to the structure (roadways and sidewalks, the traffic circle area and the ancillary areas) is to be restored.Likewise, the construction of temporary traffic areas that will be used during the individual construction phases and the associated demolition of the existing structures will take place.
1.1.1 Road construction ca.100 m2 asphalt millingca. 60 t hazardous waste disposal from the construction siteca. 750m curbstone removal.ca. 1000 m2 pavement removal with concrete paving stones.ca. 300t crushed stone base layer productionca. 150t asphalt support from AC 16 TD hergestellt.ca. 20Stk trees felled with millingca. 600 m3 soil removalca. 150 m concrete pipelineca. 2500 m2 asphalt base course from asphalt base course mix AC 32 T S herstellen.ca. 6700 m2 bitumen emulsion aufspprühen zur Herstellung des Schichtenverbund.ca. 2500 m2 asphalt binder course from asphalt binder AC 22 B S herstellenca. 200 m2 Beton herstellenca. 370 m concrete curbstone settingca. 100 pcs curbstone separationca. 48 m steel railing installationca. 36 light poles to be taken up and storedca. 1200 m2 topsoil to be supplied and covered1St fork stands to be installed by the clientCa. 170 m2 marking surfaceThe tendered services comprise the construction of rainwater disposal facilities, traffic facilities and the construction of an angled retaining wall and stairways.For the connection of the rainwater pipes, it is necessary to uncover the existing channels in Untere Kaiserstraße and Ruhrstraße. For this purpose, trenches have to be constructed using the cut-and-cover method. The sewer in Ruhrstraße must be demolished between the first and third manholes and reconstructed in the position of the road body.Since a full closure of the entire intersection is not possible at any time, the work must be carried out in construction phases according to the AG's documents. Only Friedrichstrasse can be fully closed for a longer period. Work such as asphalt paving can be carried out in short full closures of the arms.The bill of quantities describes services for deconstruction. All surface pavements are to be removed. The work for traffic routing during construction describes the necessary ramps for the interim conditions, since the new structure is higher than the old structure. Trenches for supply and disposal lines, formation of subgrade and, if necessary, soil replacement are described under the heading Earthworks. Stormwater disposal is described under Sewer Construction. This covers standard manholes up to DN 1000 and pipes up to DN 300. The surface drainage title covers the services from road runoff to connecting pipes and connections to existing structures. Furthermore, the services of the superstructure are described in the titles layers without binder, asphalt construction methods and concrete construction methods. The corresponding curbs and tactile guidance elements are described under the titles curbs, gutter stones and paving. The services for the retaining wall and the stairways in the southern area of the construction project are described under the heading Retaining wall, stairways and railings. Equipment elements, lighting incl. civil engineering, greening as well as traffic regulation services are described under the titles equipment, civil engineering for supply line carriers, lighting, planting as well as marking and signage.1.1.2 Civil engineering structuresGeneral description of the scope of services1 Psch export documents incl. workshop drawings1 Psch as-built documents1 Psch working, protective and supporting scaffolds1 Psch grounding of structureCa.550 m construction fenceCa.2300 m prepare borehole for explosive ordnanceCa. 3500 m2 produce bored pile wall as foundationCa.650 m2 produce shoring soldier pile wallCa. 3000 m3 produce excavation pitCa. 750 m3 produce unreinforced concreteCa. 1380 t install reinforcing steelCa. 550 m3 demolish concreteCa.35 m2 demolish steel sheet pile wallCa. 310 m3 install precast concrete partsCa.1250 m3 produce reinforced concrete incl. formwork C35/45Ca. 600 m construction joint fabricationCa. 100 m steel railing installationType and scope (structural system, main dimensions, constraint points)Existing plantThe existing SE was built in 1963 as an articulated, longitudinally prestressed solid slab with a construction height of 50 cm and dimensioned for BKL 60 according to DIN 1072.The structure was built in segments of approx. 11.00 m length and separated by space joints.The total length of the structure is 87.00 m.The reinforced concrete abutments are based on well rings, which are set down on the in-situ rock horizon approx. 3.50 m below SE.The structure is backfilled, the minimum height in the area of the road surfaces is 40 cm.The crossing system includes adjacent retaining walls on all four quadrants, which are designed as tie-back sheet pile walls with a reinforced concrete facing shell. According to the as-built drawings, the tiebacks are single-bar anchors with a dead man's construction.Description of the services to be performed by the Contractor within the scope of civil engineeringThe Contractor has to perform the following services, among others, in the course of the renewal of the crossing over the Deutsche Bahn in Wetter (Ruhr):- Construction of bored piles and sealing bodies (high-pressure injection) in the pile spandrels- Construction and backfilling of excavation pits incl. Construction and backfilling of excavation pits incl. girder pile wall shoring- Demolition of the existing superstructure- Construction of a new frame girder incl. frame corners in reinforced concrete as well as prefabricated reinforced concrete parts- Partial demolition of the adjacent retaining walls and construction of the end plates as connection to the existing retaining walls- Construction of lateral upstands on the bridge edges- Installation of railings and contact protection as well as other equipment (e.g. structure drainage)Main dimensions s. Construction plans as annex to the invitation to tender

Opportunity closing date
17 May 2022
Value of contract
to be confirmed

About the buyer

Address
Landesbetrieb Straßenbau NRW Regionalniederlassung Südwestfalen Außenstelle Hagen Rheinstr. 8 Hagen 58097 Germany
Contact
rnl-sw-as-ha-vergabeservice@strassen.nrw.de

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