Tenders Are Invited For Development Of A Complex Report For The Assessment Of Compliance With The Basic Requirements For Construction And Technical Control In The Construction Part For The Bridge Facility On Road Iii-7003 (O.P. Dulovo-O.P.Shumen) - Pristoe - Kaolinovo - Latno - Dolina - P.K. Lisi Vrah - Voivoda - Izbul - Varbyane - Zlatna Niva - Tsarev Brod - O.P. Shumen At Km 20+300

The Facility At Km 20+300 On Road Iiі-7003 (O.P. Dulovo-O.P. Shumen) - Pristoe - Kaolinovo - Lyatno - Dolina - P.C. Lisi Vrah - Voivoda - Izbul - Varbyane - Zlatna Niva - Tsarev Brod - O.P. Shumen, Over The River Kriva Reka Has 1 Opening With A Length Of 9.75 M, A Total Length Of 11.00 M And A Width Of 4.80 M On The Roadway And One Traffic Lane. There Are Two Leading Lanes, No Road Restraint System Is Installed, There Is No Guardrail And No Sidewalk. Height Gauge: Hd= 1.00M. Water Level To Bottom Edge Of Main Support Beams. Carrying Capacity: Roller, Omnibus, Full Of People - According To Passport Data. The Pavement Of The Bridge Is Asphalt Concrete. The Superstructure: Static Scheme Simple Beam, Reinforced Concrete, Plate Beam - Monolithically Filled With A Thickness Of 0.30 M, The Main Beams Are 4 Pcs. With A Rectangular Cross-Section (H=0.70 M And B=0.30 M) And An Axial Distance Between Them Of 1.38 M There Are 3 Pcs. Transverse Beams - At The Supports And In The Middle Of The Opening With A Rectangular Cross-Section (H=0.60 M And B=0.25 M). The Road Slab Is Reinforced Concrete. The Expansion Joints Are Two Closed Type At The Supports. The Abutments Are Built Of Jointed Stone Masonry. In 2011, Partial Repairs Were Carried Out On The Lower Structure, Such As On The Shoumen Embankment - Near The Facility, A Reinforced Concrete Curtain Was Built, New Pavement Blocks With Installed Osp And Renovation Of The Upper Structure. The Foundation Is Flat Stone Masonry. The Facility Is Narrow And Does Not Have Enough Gauge For Two-Lane Traffic, And Crossing Is By Waiting Before And After The Bridge, Regulated By Traffic Signs. Drainage Of The Bridge Takes Place Along The Longitudinal Slope Of The Road. Many Surfaces On The Main Beams Are In Poor Condition And Corrosion Of The Reinforcement Continues. There Is A Collapsed Concrete Cover, Exposed And Corroded Reinforcement, Broken Stirrups Of The End Main Beams, Especially In The Support Areas. The Leading Strips Have A Collapsed Concrete Cover. There Are Local Leaks Through The Road Slab And Along The Beams. The Superstructures Are Executed Without Sufficient Concrete Cover. Local Damage To The Stonework. Developed Reinforcement Corrosion And Broken Stirrups In The End Main Girders Reduced The Design Load Capacity Of The Bridge Structure. At The Support Zone, The Shear Stresses Have The Highest Values. These Efforts Are Taken Over By The Concrete Section And The Transverse Reinforcement - The Stirrups. From The Finding That The Stirrups Are 20-25 Cm Apart And That Some Of Them Are Broken, It Follows That There Are Support Zones In Which There Are Stirrups 40-50 Cm Apart With A Reduced Cross-Section Due To Developed Corrosion. Due To The Narrow Gauge Of The Bridge, The End Beams, Which Are Damaged, Are Intensively Loaded By The Passing Light And Heavy Goods Traffic.