A vehicle-tunnel dynamic coupling hybrid simulation test method and device for a floating tunnel

Abstract

The invention discloses a floating tunnel vehicle-tunnel dynamic coupling hybrid simulation test method and device. The method is used to analyze and research a dynamic characteristic of a floating tunnel in a vehicle-tunnel coupling problem. The method comprises the following steps of for different research emphases, dividing a floating tunnel, a vehicle, a fluid and the like into different physical substructures and numerical substructures; based on a finite element algorithm or related software, establishing a numerical simulation model for the numerical substructures; prefabricating, processing and installing the physical substructures; through a data interaction system and a data acquisition system, completing loading control of the physical substructures by calculation information of the numerical substructures, and model updating of the numerical substructures by measurement information of the physical substructures; and finally, monitoring and extracting the required information through a visual interface. A pure numerical simulation method is difficult to accurately simulate and has low calculating efficiency when a structure is complex or a complex nonlinear behavior exists. In the invention, the above disadvantages are avoided. For problems that a traditional structural test can not capture a dynamic characteristic of the structure or a size is limited, use and maintenance costs are high and so on, a sub-structure technology advantage of a hybrid simulation test is used and the method and the device can be widely applied to nonlinear dynamic characteristic analysis of complex structure objects such as the floating tunnel and the like.

Description

technical field [0001] The invention relates to the technical field of simulation and testing of civil engineering structures, in particular to a vehicle-tunnel dynamic coupling hybrid simulation test method and device for a suspension tunnel. Background technique [0002] Suspension tunnel is a new type of traffic structure across waters proposed in recent years, which is suitable for crossing the two banks separated by large-span waterways such as straits, bays, and lakes. Compared with traditional spanning structures, floating tunnels have many advantages. For example, the impact on the surrounding environment of the structure is relatively small during construction; the floating tunnel can be constructed and operated around the clock without being affected by natural weather changes; due to its higher location and gentler slope than the immersed tube tunnel and submarine tunnel, the floating tunnel is affected by the water bottom and The geological conditions of the sea...

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Problems solved by technology

[0004] The main purpose of the present invention is to overcome the shortcomings of the existing above-mentioned technologies, and provide a vehicle-tunnel dynamic coupling hybrid simulation test method and device, which can not only make up for the shortcomings of pure numerical models for complex structure simulation, but also It can solve the problem of the size of large-scale structural models. It can not only reduce the calculation pressure of pure numerical methods, but also show the structural response under complex problems. For further research on the large deformation, large displacement, nonlinear, multi-body coupling, etc. of floating tunnels Structural responses under questions provide a powerful means

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