Ways of preventing a fall of metallic bridge spans under seismic loads
Abstract: There are given the main principles of designing seismic beam bridges and the basic diagrams of transferring longitudinal seismic stresses from span onto supports are described. Procedures of designing span structures are set forth in the article. There are given the results of designing top movements of different bridge bearing arrangements when metallic spans made by the standard designs of the years 1960-1995 rest on them. There are described the variants of using metallic spans of different designs to prevent their throwing down from supports under seismic loads. There are given the examples of using preventive structures of different types. Operating efficiency of using the known means against throwing down bridge metallic spans from the supports under seismic loads has been analyzed. There have put forward the basic requirements to choose protective structures when designing bridges with metallic spans in the areas of higher seismicity.
Keywords: bridge, metal, spans, seismic loads, ways against throwing down, prevention.
Pages: 187-193.
For citation: Kazakevich, M. I.; Kosyak, V. M. Ways of preventing a fall of metallic bridge spans under seismic loads. – Text : electronic. – In: Metal Constructions. – 2007. – Vol. 13, N 4. – Р. 187-193. – URL: https://donnasa.ru/publish_house/journals/mk/2007-4/03_kazakevich_kosyak.pdf (date of access: 21.11.2024). – ISSN 1993-3517.
Vol. 13, N 4 (2007)
Journal: Metal Constructions
Publish house: Donbas National Academy of Civil Engineering and Architecture
Journal: Metal Constructions
Publish house: Donbas National Academy of Civil Engineering and Architecture