Recent research on flexible culverts in sloping terrain

• Autorzy: Wadi A. , Pettersson L.

Identyfikatory

DOI

10.21008/j.1897-4007.2017.23.27

• Konferencja: European Conference on Buried Flexible Steel Structures (3 ; 24-25.04.2017 ; Rydzyna, Polska)
• Języki publikacji: EN

Abstrakty

EN

The performance of buried flexible steel structures is directly influenced by the quality of the backfill soil and its configuration around the conduit. The economical choice of these structures stimulates practitioners to expand their different applications including their performance in sloping environment. The presence of steep surface slopes induces unbalanced loading and asymmetrical soil support around the conduit. This paper outlines the latest research efforts on how a flexible culvert would perform in sloping terrain environment. The paper focuses primarily on the structural behaviour of soil loading effects. The investigation highlights the use of numerical simulation in predicting the performance of a case study of flexible culvert under different construction schemes, where the influence of slope intensity and depth of soil cover are briefly presented. Soil slope stability as a major concern is also discussed. The research outcome clearly underlines the importance of soil configuration around steel culverts. The asymmetrical response of the conduit is predictably observed from the results and greatly influenced by the presence of shallow depth of soil covers. Sectional forces tend to increase with the increase of surface slopes. The results also underline the necessity of soil stability investigation when constructing flexible culverts in sloping terrain.

Słowa kluczowe

EN

sloping terrain; flexible culvert; soil-steel composite bridge; finite element method; snowshed; avalanche load

• Wydawca: Wydawnictwo Politechniki Poznańskiej
• Czasopismo: Archiwum Instytutu Inżynierii Lądowej
• Rocznik: 2017
• Tom: Nr 23
• Strony: 293--299
• Opis fizyczny: Bibliogr. 7 poz., rys., tab.

Twórcy

autor

Wadi A.

• Division of Structural Engineering and Bridges, KTH Royal Institute of Technology, Sweden

autor

Pettersson L.

• Division of Structural Engineering and Bridges, KTH Royal Institute of Technology, Sweden

Bibliografia

• [1] Vaslestad J, Østlid H, Johansen TH, Holm W. Flexible Steel Pipes Avalanche Canopies and Tunnels, 14 Years Experience (Fleksible Stål Rør som Skredoverbygg og Vegtunneler, 14 Års Erfaring). Norway (in Norwegian): 1997.
• [2] Norwegian Road Administration (Statens vegvesen). Geotechnics in Road Construction, Handbook V220 (Geoteknikk i vegbygging, Hândbok V220). Norway (in Norwegian): 2014.
• [3] Pettersson L, Sundquist H. Design of Soil Steel Composite Bridges. 5th ed. Stockholm: KTH Royal Institute of Technology; 2014.
• [4] AASHTO. LRFD Bridge Design Specifications. Washington, DC: American Association of State Highway and Transportation Officials; 2012.
• [5] Wadi A, Pettersson L, Karoumi R. Flexible culverts in sloping terrain: Numerical simulation of soil loading effects. Eng Struct 2015;101:111-24. doi: 10.1016/j.engstruct.2015.07.004.
• [6] Wadi A, Pettersson L, Karoumi R. Flexible culverts in sloping terrain: Numerical simulation of avalanche load effects. Cold Reg Sci Technol 2016;124:95-109. doi : 10.1016/j.coldregions.2016.01.003.
• [7] Vaslestad J, Madaj A, Janusz L. Field Measurments of Long-Span Corrugated Steel Culvert Replacing Corroded Concrete Bridge. Transp Res Rec 2002:164-70.

Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).