Tenders Are Invited For Supervision Of Building Work – 2026-60_Enb_Tb_Oesede_Sigeko

Supervision Of Building Work – 2026-60_Enb_Tb_Oesede_Sigeko. The Following Service Profiles Are The Subject Of The Project And Must Be Included With Regard To Safety And Health Protection: Object Planning Engineering Structures In Connection With The Recalculation And Upgrading Of The Bridges On Federal Highways, The Oesede Valley Bridge Was Recalculated. As A Result, It Turned Out That It Has Significant Computational Evidence Deficits And Does Not Achieve The Required Target Load Level. Due To Its Age, The Viaduct Only Has A Limited Load-Bearing Capacity And No Longer Meets The Contemporary Requirements For Bridge Structures. Furthermore, The Joints Resulting From The Sectional Construction Of A Prestressed Concrete Structure Do Not Have Sufficient Durability. Due To This, Several Traffic Measures Have Already Been Taken. During The Planning, It Was Determined That Continued Use Of The Substructures Was Not Possible From A Technical And Economic Point Of View. Therefore, The Complete Replacement Of This Viaduct Is Planned. Due To The Very Important Transport Connection For Motor Vehicle Traffic, The Replacement Building Will Largely Be Carried Out While Traffic Is Running, And Closures During Construction Will Be Reduced To A Minimum. In Order To Maintain Traffic Over Long Periods Of The Construction Project, The Planned 6-Span Bridge With Two Superstructures Will Be Built One After The Other. Before The First Superstructure Is Used In Its Final Position, It Is Already Used In A Side Position With Two-Lane Traffic. This Requires An Interim Expansion Of The B 51 With Guidance Over The Temporary Bridge Or The First Superstructure. Interim Expansion: To Use The First Superstructure As A Temporary Roadway, The Roadway Of Federal Highway 51 Pivots To The Western Side Of The Existing Bridge Structure With A Warping Length Of Around 135 M. The Cross Section Provides For A 7.75 M Wide Roadway. Due To The Limited Adjacent Areas Available, No Embankment Can Be Taken Into Account For The Temporary Roadway. The Height Is Supported Using A Retaining Wall. This Means There Is No Intervention In The Oeseder Bach. Due To The Position Of The Bridge Pillars Of The Temporary Bridge, The Cross-Section Of The Oeseder Straße Located There Has To Be Temporarily Narrowed. A Two-Way Lane Cannot Be Maintained. The Roadway Is Merged Into One Lane And Traffic Is Regulated Using (Construction Site) Traffic Lights. Final Expansion: Coming From The Junction (B 51, L 95) In The South, The Federal Highway Runs In A Northerly Direction With A Radius Of R = 1,550 M. Immediately In Front Of The Bridge Structure, The Route Continues In A Straight Line And Connects Back To The Existing Extension With A Radius R = 90,000 M. The Length Of The Measure Is Around 550 M, With The Bridge Structure Having A Total Span Of Around 185 M. The Existing One-Piece Bridge Structure Has A Cross-Section Width Of Around 17.50 M