- Tytuł:
- Numerical and theoretical research on spatial shear lag effect of self-anchored suspension bridge steel box girder
- Autorzy:
-
Li, Yanfeng
He, Ying
Bao, Longsheng
Sun, Baoyun
Wang, Qinghe - Powiązania:
- https://bibliotekanauki.pl/articles/1852505.pdf
- Data publikacji:
- 2021
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
most samozakotwiony
most wiszący
dźwigar skrzynkowy
dźwigar stalowy
efekt opóźnienia ścinania
analiza elementów skończonych
self-anchored bridge
suspension bridge
steel box girder
shear lag effect
finite element analysis - Opis:
- The shear lag effect of the steel box girder section in a self-anchored suspension bridge was investigated in this study. Finite element analysis software Midas Civil was used to discretize the girder under analysis into space plate elements and establish a plate element model. The law of shear lag in the longitudinal direction of the girder in the construction and completion stages was determined accordingly. The shear lag coefficient appears to change suddenly near the side support, middle support, side cable anchorage area, and near the bridge tower support of the steel box girder under the imposed load. The most severe shear lag effect is located near the side support and near the side cable anchorage area. Steel box girder sections are simulated before and after system conversion to analyze the shear lag coefficient in the bridge construction stage. The results show that the shear lag coefficient markedly differs before versus after system conversion due to the different stress mechanisms. The finite element analysis results were validated by comparison with the results of an analysis via analogous rod method.
- Źródło:
-
Archives of Civil Engineering; 2021, 67, 2; 631-651
1230-2945 - Pojawia się w:
- Archives of Civil Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł