Bridge 202-00 on D1 highway Fričovce – Svinia, Slovak Republic
construction work on rectification of bridge bearings on abutments, Eurovia CS a.s.
Project name: Diaľnica D1 Fričovce–Svinia, objekt 202-00 Most nad cestou III/018 189 a Štefanovským potokom v km 80,5 D1
Contractor: Eurovia CS a.s.
Position of LKM Consult: conceptual design of rectification and bearing replacement, elaboration of technical documentation, leading of construction process on site
Termination: 21.7.2015
Project Description
Bridge 202-00 has four spans 37,3 +2×45,0 +39,8 m. Total width of superstructure is 29,5 m, because bridge carries whole highway profile using one superstructure in depth 37,12 meters above terrain. Cross-section compound of 8,30 m wide concrete box girder with shallow struts supporting post-concreted composite slab. Construction depth of box girder is 2,69 m. Superstructure is connected to substructure using frame connections on piers and pot bearings on abutments.
During construction occurred abnormal settlement, movement and inclination of both abutments.
LKM Consult delivery:
- conceptual design of rectification and bearing replacement
- elaboration of technical documentation
- leading of construction process on site
Firstly were installed anchors into bottom part of each abutment. These anchors were designed to carry possible transversal forces, which are usually taken by one-directional bearing on abutment.
On abutment OP5 was bridge superstructure lifted using hydraulics by force 11200 kN. Then were inserted two rectification plates (thicknesses 25 mm and 20 mm) into area between upper anchor plate and sliding plate of pot bearing. New longer bolts were mounted and finally superstructure was dropped into bearings.
On abutment OP1 was bridge superstructure lifted using hydraulics by force 9800 kN. Then were dismantled existing sliding plates on both bearings, mounted new sliding plates and longer bolts. In the end of process superstructure was dropped into bearings.
Construction work was complicated by limited access from above into area of abutment.
