A test method for simulating underwater multi-point seismic input
A test method and seismic technology, which is applied in the field of civil engineering and hydraulic engineering, can solve problems such as the inability to simulate earthquake tests, and achieve the effects of reducing test costs and simple device structures
Active Publication Date: 2020-08-04
TIANJIN UNIV
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Problems solved by technology
[0005] In order to solve the problem that the existing seismic test method cannot simulate the seismic test of a long structure in a water environment, the present invention provides a set of seismic test method that can not only excite multi-point earthquakes, but also realize the coupling effect of ground motion-wave-water flow
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[0031] In order to further understand the content, features and effects of the present invention, the following examples are given together with the accompanying drawings.
[0032] see figure 1 and figure 2 , the present invention is a test method for simulating underwater multi-point earthquake input, comprising: two reservoirs, a test tank 2, a flow-making platform 3, a flow-making device 3a, a wave-making device 4, a vibration table 6 located in the test tank and wave breaking board. One of the two reservoirs is the main reservoir 1a, and the other is the L-shaped reservoir 1b; the flow-making platform 3 is placed on the inner side of the L-shaped reservoir 1b, through the flow-making platform 3 and the first vertical The baffle 11 forms an L-shaped reservoir 1b, and a second vertical baffle 12 with openings is provided on the flow-making platform 3, and the flow-making device 3a is placed on the flow-making platform 3 between the two vertical baffles , its outlet commu...
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The invention provides a test method for simulating underwater multi-point seismic input. The test system used comprises two reservoirs, a test water tank, a flow producing platform, a flow producingdevice, a wave making device, a vibration table in the test water tank and a wave absorbing board. The test method comprises the steps that test water is injected into the main reservoir and the L-shaped reservoir; sealing inspection is carried out, and the wave making device and the flow producing device are turned on; whether water seeps from the vibration table and the sealing treatment aroundthe vibration table is observed, so as to ensure that a test is safe and accurate; water is discharged until the water level is lower than the height of the surface of the vibration table; a test object is arranged on the vibration table; test water is re-injected into the main reservoir and the L-shaped reservoir to ensure that the height of the water level is the water level required for the test; the wave making device and the flow producing device are turned on to produce water flow and waves; and the action switch of the vibration table is turned on to start the test. The test method provided by the invention can perform multi-point seismic excitation, and can realize seismic oscillation-wave-water flow coupling.
Description
technical field [0001] The invention mainly relates to the technical field of civil engineering and water conservancy engineering, in particular to a test method for simulating underwater multi-point seismic input. Background technique [0002] In 2018, Tianjin University led the construction of the first major national scientific and technological infrastructure in the field of earthquake engineering - a large-scale multi-point earthquake engineering simulation research facility. The total construction area of the device is expected to reach 77,000 square meters, and the construction period is 5 years. After the completion of the construction, it will provide a more scientific and effective platform for the seismic research of the world's major projects. [0003] At present, the existing seismic test methods mainly have the following two problems: (1) The consistent input (single point) of earthquake motion can be realized, and the test simulation of the underwater single...
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IPC IPC(8): G01M7/02G01M10/00G01V1/00
CPCG01M7/02G01M10/00G01V1/00
Inventor 柳国环黄伟纬
Owner TIANJIN UNIV