In-plane multidirectional loading fundamental frequency adjustable shake table model test shearing box

A technology of multi-directional loading and model testing, which is applied in vibration testing, testing of material strength by applying stable shear force, testing of machine/structural components, etc., can solve problems such as inability to realize multi-directional loading, and reduce the boundary effect, simple structure, and reduced boundary effects

Pending Publication Date: 2018-07-24
GUANGZHOU TESTING CENTRE OF CONSTRUCTION QUALITY AND SAFETY CO LTD +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, it is still difficult to reduce the large experimental error while ensuring

Method used

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  • In-plane multidirectional loading fundamental frequency adjustable shake table model test shearing box
  • In-plane multidirectional loading fundamental frequency adjustable shake table model test shearing box
  • In-plane multidirectional loading fundamental frequency adjustable shake table model test shearing box

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Example Embodiment

[0025] like Figure 1-Figure 5 As shown in the figure, the invention provides a fundamental frequency adjustable vibration table model test shear box with in-plane multi-directional loading, including a base 1, a box frame 2 stacked on the base 1, and arranged between adjacent box frames 2. The sliding connection structure 3 between the two and the rigidity adjustment device 4 connecting the box frame 2, the rigidity adjustment device 4 is evenly distributed along the circumference of the outer surface of the box frame 2, and the rigidity adjustment device 4 includes several rigidity adjustment units 41 , the rigidity adjustment units 41 are distributed along the same vertical direction, and each rigidity adjustment unit 41 is connected with an adjustable number of adjacent boxes 2 .

[0026] like Figure 1-Figure 3 As shown, several hoisting rings 5 ​​for hoisting and moving the shearing box are symmetrically arranged on the base 1 . The box frame 2 at the bottom is fixedly...

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Abstract

The invention provides an in-plane multidirectional loading fundamental frequency adjustable shake table model test shearing box. The box comprises a base, box frames arranged on the base in a stackedmanner, slide connecting structures arranged between the adjacent box frames, rigidity adjustment devices connecting the box frames, wherein the rigidity adjustment devices are uniformly distributedin circumferential directions of the external surfaces of the box frames and comprise a plurality of rigidity adjustment units; the rigidity adjustment units are distributed in the same vertical direction; and each rigidity adjustment unit is connected with the adjacent quantity adjustable box frames. The in-plane multidirectional loading fundamental frequency adjustable shake table model test shearing box is simple in structure; the rigidity and fundamental frequency of the shearing box can be adjusted under the condition that structure safety is guaranteed; and a test result error can be reduced by optimizing a smaller boundary effect.

Description

technical field [0001] The invention relates to an in-plane multi-directional loading shear box with adjustable fundamental frequency for a model test of a shaking table, which belongs to the technical field of civil engineering. Background technique [0002] Shaking table model test is a very important test method in the process of studying the dynamic characteristics and seismic performance of building structures and underground structures under seismic loads. Compared with in-situ tests, it has advantages in terms of test cost and environmental requirements. [0003] In the real environment, the seismic load is transmitted from the local bedrock to the infinite soil mass, and its energy gradually attenuates along the propagation path in the plane, and basically no reflected waves are generated on the propagation path in the plane. In order to avoid the boundary effect of the test box For the error caused by the reflection of seismic load in the model test, the design of t...

Claims

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Application Information

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IPC IPC(8): G01M7/06G01N3/24
CPCG01M7/06G01N3/24G01N2203/0025
Inventor 陈航崔杰唐孟雄李亚东胡贺松
Owner GUANGZHOU TESTING CENTRE OF CONSTRUCTION QUALITY AND SAFETY CO LTD
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