Initial Design of a Double Curved Floating Bridge and Global Hydrodynamic Responses Under Environmental Conditions

Abstract

In this paper, a floating bridge concept is proposed. This bridge concept comprises a two oppositely curves in plan, which enables the cancellation of the axial forces at the bridge as one arch will be under compression while the other arch is in tension due to environmental forces acting in one direction. The road deck is carried by truss structures that are kept above the water by several elliptical cylindrical pontoons. To reduce drag load, the cross sectional area facing the current is reduced as much as possible, while the buoyancy is kept the same based on the initial weight estimation. Initial design consideration and methodology of a double curved floating bridge is presented, and a numerical model is established for analyzing this concept. Hydrodynamic and structural dynamic aspects are included in the numerical model. Parametric study of the bridge structural rigidity is performed to investigate the effect to the responses. White noise, regular and irregular wave simulations are carried out to investigate the dynamic responses of the floating bridge under different conditions.

Parametric study and dynamic response analysis of three single curved discrete pontoon floating bridges

“…The weight of the bridge girder is estimated to be 39.9 ton/m. Note that the stability of the pontoons has been studied previously (Wan et al 2017b). The dimension and weight parameters of the pontoons and the bridge girder are listed in Table 1.…”

Numerical Modelling and Dynamic Response Analysis of Curved Floating Bridges with a Small Rise-Span Ratio

“…The center of gravity (C.O.G) of the pontoon is −2 m from the still water line (SWL), and the C.O.G of the bridge deck is 5 m from the SWL. The bridge deck weight distribution is estimated to be 3.99 Mkg/100 m. The stability of the pontoons was studied previously [27]. The dimensions and weight parameters of the pontoons and bridge deck are listed in Table 1.…”

A Review of Artificial Intelligence-Based Optimization Applications in Traditional Active Maritime Collision Avoidance

“…Due to the increasing number of navigable ships and various complex environmental factors, there has been an increase in the risk of ship-bridge collisions and ship-marine equipment collisions. Maritime collisions can cause serious damage to marine structures [10][11][12][13][14], further threatening the safety of people and the economy. As shown in Figure 1, such issues are receiving increasing attention.…”