Abstract
The Sakhalin region and its ecology, natural features and federal reserves with natural ecosystems, has a high potential in ecotourism, and therefore the problems of operating bridge span structures of the ferry crossing connecting the island with the mainland are becoming increasingly important. This is due to the fact that the traffic flow at the ferry crossing, including off-farm transportation of agricultural goods, has increased significantly. Consequently, the load on the bridge structures has increased. In addition, natural factors play a significant role in the operation of the structures. Therefore, the issue of the durability of bridges has several generalized components, including the mechanical wear along with moral and physico-chemical wear. The paper deals with the topic of the correct and uniform distribution of high load bearing between structural elements of large-span structures, since under the influence of the natural gravity of the structure and the influence of external factors, dangerous damage can occur. As a research task, the authors determined an attempt to assess the load of the lifting mechanisms located on the abutments of the intermediate supports and serving to set the spans in the required position. In case of increase in the mass of spans, overcoming the resulting imbalance can lead to a noticeable increase in the required power of the drive of the mechanisms.
Highlights
IntroductionFerry crossings, which have a number of advantages, are divided into rail, road and combined (road-rail)
1.1 Formulation of the problemFerry crossings, which have a number of advantages, are divided into rail, road and combined
From October 2018, in order to ensure uninterrupted transportation during the period before the reconstruction of ferry complexes, it was decided to begin urgent repair and restoration work on the Vanino-Kholmsk ferry crossing bridge at the seaport of Kholmsk in the amount performed in the time “window”
Summary
Ferry crossings, which have a number of advantages, are divided into rail, road and combined (road-rail). Modern railway ferry crossings are passenger-and-freight and combined (car-rail). Onshore facilities of ferry crossings (Fig. 1) are technically complex complexes that include, as a rule, railway and road transport facilities, maintenance and management infrastructure. One of the main structural elements of ferry crossings are the linkspans, providing the connection of ferries with access routes. The design of the linkspans at each crossing differs due to the processing of either different types of ferries or local conditions. Fundamental technical solutions of railway crossings from the moment of their occurrence have not changed. Two types of crossings can be distinguished: those working at a short distance (river), and those working along a long sea route (at least 100 km)
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