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A large scale model test vhm combined load loading system

A model test, loading system technology, applied in the direction of using stable bending force to test material strength, using stable tension/pressure to test material strength, instruments, etc., can solve the problem of high price, achieve low cost, installation and convenience Easy-to-use effects

Active Publication Date: 2022-01-18
SOUTH CHINA UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] There is no precedent for a similar VHM combined load loading device in China, and the existing devices with the same function in foreign countries are expensive

Method used

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  • A large scale model test vhm combined load loading system
  • A large scale model test vhm combined load loading system
  • A large scale model test vhm combined load loading system

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Embodiment Construction

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the embodiments are Some, but not all, embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0024] A large-scale model test VHM combined load loading system, including a fixed oil pressure movable thruster, a steel frame 1, a loading connector A and a horizontally retractable steel strand 2; the loading connector A and the horizontally retractable steel strand 2 is set inside the steel frame 1; the loading connector A includes V 1 Vertical loading arm 3,...

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Abstract

A large-scale model test VHM combined load loading system. The system consists of a loading connector, three hydraulic movable thrusters, four force sensors, a data acquisition instrument, a controller and three oil pumps. The loading connector includes: two integral vertical loading rods, a groove connector, a chuck with a pulley and a horizontal retractable steel strand. The upper part of the connector connects two vertical loading arms with two hinge constraining members, one of which is composed of two-section rod units including a hinge constraining, and the other is composed of an independent rod loading rod. There is a smooth pulley in the middle of the connector to connect the lower vertical connecting rod. The connector enables two hydraulic loaders to independently apply vertical loads, apply eccentric moment pairs, apply vertical and bending moments, and vertical and horizontal bending moment combined loads. The system of the invention can realize the simultaneous loading of V-H-M three-way loads in large-scale model tests.

Description

technical field [0001] The invention relates to the field of mechanical characteristics of geotechnical engineering structures, in particular to the field of large-scale model tests. Background technique [0002] The design method of the bearing capacity of geotechnical structures commonly used in geotechnical engineering is generally as follows: determine the most unfavorable load combination and its plane or direction (same plane) through calculation and analysis, and then calculate the internal force of the pile foundation based on the simple superposition principle, and Check the bearing capacity of the pile foundation. For the pile foundation subjected to the combined load of vertical load-horizontal load-moment load (V-H-M) in the above actual project, since the ultimate bearing capacity of the combined load is less than the minimum value of the single load, this design scheme is likely to be biased. dangerous or unsafe. However, due to the complexity of the spatial ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/20G01N3/12G01N3/02
CPCG01N3/12G01N3/20G01N3/02G01N2203/0019G01N2203/0023G01N2203/0048G01N2203/0256
Inventor 周密韩雨薇王晓亮王齐
Owner SOUTH CHINA UNIV OF TECH