Hydroelastic analysis of a nonlinearly connected floating bridge subjected to moving loads

2005 ◽  
Vol 18 (1) ◽  
pp. 85-107 ◽  
Author(s):  
Fu Shixiao ◽  
Cui Weicheng ◽  
Chen Xujun ◽  
Wang Cong
Keyword(s):  
Moving Loads ◽  
Hydroelastic Analysis ◽  
Floating Bridge

Simulation of a discrete pontoon floating bridge induced by moving loads

2016 ◽  
Author(s):  
Jun Zhang ◽  
Chuan Liang ◽  
Ming-Kang Gou ◽  
Lin Li ◽  
Ying Zhang
Keyword(s):  
Moving Loads ◽  
Floating Bridge

Hydroelastic Analysis and Validation of an End-Anchored Floating Bridge Under Wave and Current Loads

2019 ◽  
Author(s):  
Xu Xiang ◽  
Arne Løken
Keyword(s):  
Global Analysis ◽  
Model Tests ◽  
Analysis Model ◽  
Global Dynamic ◽  
Analysis Tools ◽  
Hydroelastic Analysis ◽  
Floating Bridge ◽  
Offshore Industry ◽  
Traditional Structures ◽  
Future Work

Abstract Analysis tools used by the offshore industry are applied for prediction of global dynamic behaviour of the extreme floating bridge concepts being evaluated by the Norwegian Public Roads Administration (NPRA). Validation and code-code comparison of these analysis tools are of significant importance when they are applied to such new and non-traditional structures. The current paper focus on validation between numerical modelling and model tests. An end-anchored floating bridge of around 850m length is studied. A hydro-elastic global analysis model was created by considering the bridge as large radiation/diffracting floaters connected by elastic beams. The analysis has been done both in frequency and time domain, by including the hydrodynamic interaction between the pontoons or not. A systematic check of different parameters that may have impact on the analysis was carried out. The numerical results have been compared with the model tests carried out in MARINTEK (1990). The work provides validation of the current analysis tools and guidelines for future work.

Dynamic Model of a Discrete-Pontoon Floating Bridge Subjected by Moving Loads

2010 ◽  
Vol 29-32 ◽  
pp. 732-737 ◽  
Author(s):  
Zhang Jun ◽  
Jun Liu ◽  
Xiao Lu Ni ◽  
Wei Li ◽  
Rong Mu
Keyword(s):  
Moving Load ◽  
Elastic Beam ◽  
Beam Model ◽  
Moving Loads ◽  
Concentrated Force ◽  
Vehicle Load ◽  
Comparison Results ◽  
Floating Bridge ◽  
Mass Spring ◽  
Damping Systems

A discrete-pontoon floating bridge is studied based on the beam model with assumption of the bridge deck as a elastic beam with uniform section, live load such as vehicle as moving concentrate forces, and pontoons as independent mass-spring-damping systems with singular degree of freedom. The comparison results of between vehicles and moving concentrated force show that a vehicle load can be simplified as one moving concentrated force. The present model can study not only a single moving load but also multiple moving loads.

Numerical modeling and dynamic analysis of a floating bridge subjected to wave, current and moving loads

2021 ◽  
Vol 225 ◽  
pp. 108810
Author(s):  
Yu-ji Miao ◽  
Xu-jun Chen ◽  
Yong-lin Ye ◽  
Jun Ding ◽  
Heng Huang
Keyword(s):  
Numerical Modeling ◽  
Dynamic Analysis ◽  
Moving Loads ◽  
Floating Bridge

A Time-Domain Method for Hydroelastic Analysis of Floating Bridges in Inhomogeneous Waves

2017 ◽  
Author(s):  
Shixiao Fu ◽  
Wei Wei ◽  
Shaowu Ou ◽  
Torgeir Moan ◽  
Shi Deng ◽  
...  
Keyword(s):  
Time Domain ◽  
Time Domain Method ◽  
Dynamic Responses ◽  
Irregular Waves ◽  
Frequency Domain Method ◽  
Wave Condition ◽  
Inhomogeneous Waves ◽  
Domain Method ◽  
Hydroelastic Analysis ◽  
Floating Bridge

Based on the three dimensional potential theory and finite element method (FEM), this paper presented a method for time-domain hydroelastic analysis of a floating bridge in inhomogeneous waves. A floating bridge in both regular and irregular waves, is taken as a numerical example. This method is firstly validated by the comparisons of the results between frequency domain method and presented time domain method under regular wave condition. Then the hydroeleastic responses of the floating bridge in waves with spatially varying significant wave height/peak period are presented, with the purpose to illustrate the feasibility of the proposed method. The primary results at this stage indicate that the inhomogeneity of the waves might affect the structure dynamic responses of the floating bridge in waves.

Dynamic responses of a ribbon floating bridge under moving loads

2012 ◽  
Vol 29 (1) ◽  
pp. 246-256 ◽  
Author(s):  
Shixiao Fu ◽  
Weicheng Cui
Keyword(s):  
Dynamic Responses ◽  
Moving Loads ◽  
Floating Bridge

A Time-Domain Method for Hydroelasticity of a Curved Floating Bridge in Inhomogeneous Waves

2018 ◽  
Vol 141 (1) ◽  
Author(s):  
Wei Wei ◽  
Shixiao Fu ◽  
Torgeir Moan ◽  
Chunhui Song ◽  
Shi Deng ◽  
...  
Keyword(s):  
Time Domain ◽  
Time History ◽  
Dynamic Responses ◽  
Irregular Waves ◽  
Inhomogeneous Wave ◽  
Inhomogeneous Waves ◽  
Hydroelastic Analysis ◽  
History Of ◽  
Floating Bridge ◽  
The Time Domain

This paper presents a time-domain hydroelastic analysis method for bridges supported by floating pontoons in inhomogeneous wave conditions. The inhomogeneous wave effect is accounted for by adopting different wave spectra over different regions along the structure, then the time history of inhomogeneous first-order wave excitation forces on the floating pontoons can be obtained. The frequency-domain hydrodynamic coefficients are transformed into the time-domain hydroelastic model using Cummins' equations. The linear hydroelastic responses of a curved floating bridge with end supports, subjected to irregular waves with spatially varying significant wave heights and peak periods, are investigated. Moreover, sensitive analyses are performed to study the effects of the inhomogeneity on the hydroelastic responses. The primary results indicate that the inhomogeneity of the waves has a significant effect on the dynamic responses of the floating bridge.

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