2017 © Straipsnio autoriai. Leidėjas VGTU leidykla "Technika". Šis straipsnis yra atvirosios prieigos straipsnis, turintis Kūrybinių bendrijų (Creative Commons) licenciją (CC BY-NC 4.0), kuri leidžia neribotą straipsnio ar jo dalių panaudą su privaloma sąlyga nurodyti autorių ir pirminį šaltinį. Straipsnis ar jo dalys negali būti naudojami komerciniams tikslams.

This paper presents a recent experience in Lithuania, concerning a bridge characterized by a particular typology, considerably long mid-span and the preservation of the ancient abutments. The advantages of the selected bridge layout are described using the example of the bicycle pedestrian bridge spanning river Neman in Alytus, focusing on the general conception, static calculation and design as well as construction. The underslung girder bridge passes through a nationally important recreation landscape and was required to be designed and constructed with a particular regard to the natural environment as well as historical background.

The article discusses the main component parameters and their interdependencies for a composite stress ribbon trough arch structure. The paper presents a methodology for balancing the combined suspension through arch steel bridge structure, suggests analytical methods for putting together the bearing components of the bridge and considers rational component parameters.