In the process of bridges construction, the use of modern technologies that can save financial resources in the long term perspective becomes quite relevant.
In particular, the experience of design and operation of bridge span structures made of cast-in-situ concrete with prestressed reinforcement is very interesting.
“DerzhdorNDI” SE statistics of bridges inspection indicates that cast-in-situ prestressed bridge span structures belong to the structures with the highest reliability, which are not subject to the defects under impact of intensive traffic of oversized transport, also such structures are characterized by low expenses during operational maintenance. Also, the world experience indicates the proper technical performance of such bridge span structures operation.
Therefore, we will recommend the road services to arrange the bridge span structures made of cast-in-situ prestressed reinforced concrete to ensure the design durability in the process of designing and construction of road bridges. Such structures are effective for bridge span structures of 24 m length or more at skew intersections with obstacles, while integrating bridge span structures into continuous systems with a minimum quantity of expansion joints and in other cases.
For designing the reinforced concrete prestressed bridge span structures, it is needed to take into account the norm Р В.3.2-03450778-832: 2013 "Recommendations for designing of cast-in-situ prestressed bridges with the stress on concrete (poststressed systems)" which were developed by “DerzhdorNDI” SE .
“DerzhdorNDI” SE is ready to provide scientific and technical support for the design and construction of bridges with the arrangement of bridge span structures of cast-in-situ prestressed reinforced concrete.