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Erschienen in:
2021 | OriginalPaper | Buchkapitel
Nonlinear Static Analysis of a Rectangular Cable Supported Submerged Floating Tunnel (SFT) as an Alternate Crossing for Waterway
verfasst von : Md. Hafizur Rahman, Chhavi Gupta
Erschienen in: Advances in Civil Engineering
Verlag: Springer Singapore
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Abstract
A buoyant-rectangular cable supported Submerged Floating Tunnel (SFT) can often be used as a waterway crossing even over the vast length and depth following the Archimedes’ principle. The interaction between buoyancy and self-weight controls the static and dynamic behavior of the tunnel. For SFT, weight to buoyancy ratio must be equal or less than one (W/B ≤ 1), so that the tunnel tube can float, where the cable curbs the upward thrust confirming its position, and hence 0.8565 is chosen. Here, SFT is modeled in ANSYS based on the environmental parameters of the Qian Dao Lake (China), where self-weight, hydro-static pressure, vehicular load, and water pressure to the tunnel are considered during nonlinear static analysis. Consequently, it has been observed that the deformations and stresses are in the permissible limit, where maximum equivalent strain exceeds the allowable limit due to its high slenderness, and the maximum strain occurred only at the cable joints.