Multi-plane complex load loading test system and test method for spatial structure

A space structure, loading test technology, applied in the direction of using stable torsion to test material strength, using stable bending force to test material strength, using stable tension/pressure to test material strength and other directions, can solve the safety evaluation of space structure damage, etc.

Active Publication Date: 2019-10-01
DALIAN UNIV OF TECH
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  • Application Information

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Problems solved by technology

At present, there is still a lack of relevant test equipment in China to accurately simulate the complex stress state of the space structure, and carry out the safety evaluation and damage mechanism research of the space structure under complex load conditions

Method used

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  • Multi-plane complex load loading test system and test method for spatial structure
  • Multi-plane complex load loading test system and test method for spatial structure
  • Multi-plane complex load loading test system and test method for spatial structure

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Embodiment Construction

[0043] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0044] figure 1 , 2 , 3 shows a layout diagram of a space structure multi-plane complex load loading test system. In the figure, this space structure multi-plane complex load loading test system includes the test system base 2 arranged on the foundation 1, the loading system operating platform 7, the hydraulic oil source 8, the pressurized oil pump 9, the cooling water tank 10 and the electric control system . The test system base 2 is provided with an adjustable reaction force column 3 and a plurality of independent loading units 6 , and one side of the adjustable reaction force column 3 is provided with a cantilever flange fixed end 4 . The position of the cantilever flange fixed end 4 on the adjustable reaction column 3 is adjusted according to the height of the test piece 11 . The base 2 of the test system is an all-roun...

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Abstract

The present invention provides a multi-plane complex load loading test system and test method for a spatial structure, and belongs to the technical field of the civil and marine engineering structuretest. The test system comprises a test system base arranged on the foundation, a loading system operating platform, a hydraulic oil source, a pressurized oil pump, a cooling water tank, and an electronic control system. The test system base is provided with an adjustable reaction force column and a plurality of independent loading units, wherein one side of the adjustable reaction force column isprovided with a cantilever flange fixed end. The upper end of the chord of the test piece is fixedly connected with the cantilever flange fixed end, the lower end of the chord of the test piece is fixed on the test system base, and struts of the test piece are fixedly connected with the flange connection faces of the respective independent loading units. The test system has two kinds of loading modes of force control and displacement control, cyclic loading of a single load or a load combination can be realized, and the test system can be applied to carrying out a space structure fatigue failure test, verifying a fatigue ultimate bearing capacity, and revealing a fatigue failure mechanism.

Description

technical field [0001] The invention relates to a multi-plane complex load loading test system and test method for a space structure, which is used to carry out research on failure modes and damage mechanisms of multi-plane loaded structures under the joint action of axial force, bending moment and torque, which belongs to civil and ocean engineering structures field of test technology. Background technique [0002] With the development of the economy and the progress of society, more and more large-scale, special-shaped, complex buildings and structures have appeared, and correspondingly more and more complex components have been produced. For example, the connection components in the space support system of large stadiums, the force transmission components in the transfer layer of super high-rise buildings, the connection components in the roof grid structure of airports, the multi-plane pipe nodes in the fixed foundation structure of offshore wind turbines, etc., the abov...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/08G01N3/20G01N3/22G01N3/02
CPCG01N3/02G01N3/08G01N3/20G01N3/22G01N2203/0017G01N2203/0019G01N2203/0021G01N2203/0023
Inventor 李昕鲍石榴王文华张昱
Owner DALIAN UNIV OF TECH
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