About Some Properties of Structural Steel Used in the Construction of a Railway Bridge Over the Amur River in the Early XX Century (To the 110ʰᵗ anniversary of the start of construction of the Amur Bridge)

Мұқаба

Дәйексөз келтіру

Толық мәтін

Ашық рұқсат Ашық рұқсат
Рұқсат жабық Рұқсат берілді
Рұқсат жабық Тек жазылушылар үшін

Аннотация

The main stages of construction in 1913–1916 of the railroad bridge across the Amur River near Khabarovsk are presented. The peculiarities of the construction of the structure in the difficult foreign policy conditions of the beginning of the last century, which caused a reduction in the pace of construction, are noted. The most honored organizers, designers and builders of the Amur Bridge are mentioned. Construction materials and places of their extraction, as well as suppliers of structural steel used in the construction of a unique transportation structure are specified. The methods of construction and assembly of the main load-bearing elements of the bridge structure are considered. Special attention is paid to the study of chemical composition, microand macrostructure, hardness of structural steels used in the manufacture of bridge spans. Conclusions about the conformity of the chemical composition of the investigated materials to the alloys specified in the current normative documentation, as well as the method of their smelting are formed. Modern metal materials used in the reconstruction of the bridge crossing at the beginning of the XXI century are given for comparison. The functionality of the bridge after reconstruction is reflected and the potential of its further development is given. A promising method of increasing the complex of characteristics of metal products by processing billets in solid-liquid state, which allows to reduce the metal consumption of structures, is considered.

Толық мәтін

Рұқсат жабық

Авторлар туралы

O. Komarov

Khabarovsk Federal Research Center FEB RAS, Institute of Mechanical Engineering and Metallurgy FEB RAS

Хат алмасуға жауапты Автор.
Email: olegnikolaevitsch@rambler.ru

Candidate of Sciences (Engineering), Assistant Professor

 

Ресей, 1, Metallurgov Street, Komsomolsk-on-Amur, 681005

A. Volkov

Khabarovsk Federal Research Center FEB RAS, Institute of Mining FEB RAS

Email: volkov-af@igd.khv.ru

Chief Engineer

Ресей, 51, Turgeneva Street, Khabarovsk, 680000

Әдебиет тізімі

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Қосымша файлдар

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Әрекет
1. JATS XML
2. Fig. 1. Construction of the first (right-bank) support

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3. Fig. 2. Panorama of the Amur Bridge construction

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4. Fig. 3. Launching of the channel span with the help of submerged barges

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5. Fig. 4. Amur Bridge on the day of the celebration on the occasion of commissioning

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6. Fig. 5. Materials under study: a – is a rivet; b – element of a riveted structure; c – macrostructure in the section of the rivet along the central axis; d – macrostructure in the cross section of the rivet; e – profile sample corner for studying the microstructure

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7. Fig. 6. Samples for hardness testing: a – type sample No. 1 from the «Corner» product; b – sample No. 2 from the «Rivet» type product

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8. Fig. 7. Microstructure of samples cut in various sections: a – sample No. 1 ×100; b – sample No. 1 ×200; c – sample No. 2 (structure along the axis of section, center) ×100; d – sample No. 2 (structure along the axis of section, edge) ×100; e – sample No. 2 (cross-sectional structure, center) ×100; f – sample No. 2 (cross-sectional structure, edge) ×100; g – Widmanstett score 3 according to GOST 5640–68 (row A scale 4 ×100); h – grain size score 8 according to GOST 5639–82 (additional scale 1 ×200)

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9. Fig. 8. Implementation of the method of simultaneous casting and deformation of metal: a – schematic diagram of the device; b – casting of an iron-carbon alloy; c – a billet obtained using a device for combined casting and deformation of metal

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