Novel self-balancing vertical loading test device

A technology of vertical loading and test device, which is applied in the direction of measuring device, using stable tension/pressure test material strength, instrument, etc., to save space and cost, avoid overturning damage, and facilitate installation.

Pending Publication Date: 2020-05-15
BEIJING UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a self-balancing vertical loading device

Method used

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  • Novel self-balancing vertical loading test device
  • Novel self-balancing vertical loading test device
  • Novel self-balancing vertical loading test device

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Embodiment Construction

[0027] In order to make the technical problems to be solved in the present invention, technical solutions and advantages clearer, the present invention will be described in detail below in conjunction with the accompanying drawings and embodiments:

[0028] Such as Figure 1 to Figure 6 As shown, the self-balancing vertical loading test device of the present invention includes a short screw 1, a force transmission beam 2, two force transmission screws 3, four reinforcement screws 4, two channel steels 5, two long angle steels 6, two One short angle steel 7, four trapezoidal reinforced steel plates 8, four reinforced angle steels 9, four vertical angle steels 10 and four weight hooks 11.

[0029] The above-mentioned force transmission beam 2 is arranged horizontally and has vertical round holes in the middle and both sides; the above-mentioned short screw rod 1 passes through the middle hole, and is fixed with a nut after adjusting its position; the above-mentioned two force tr...

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Abstract

The invention discloses a novel self-balancing vertical loading test device, and belongs to the technical field of mechanical loading tests. The device is used for vertical loading tests of engineering structures such as pile foundations. The loading device is composed of a short screw, a force transmission beam, a force transmission screw, a force transmission frame and a weight hook. In order toguarantee the structural integrity, all components of the force transmission frame are connected in a welding mode, and the force transmission screw and the force transmission frame are connected through bolts, so that the height adjusting function is achieved. The self-balancing loading device is designed according to a lever principle. When the weights mounted on four load mounting points are different, the device can be prevented from overturning through slight inclination, and torque balance of the loading points is kept at the same time. The self-balancing vertical loading device overcomes the defects that a common vertical jack is complex to install and generates friction force in the horizontal moving process, it is guaranteed that the vertical loading device does not generate anyconstraint on the pile top while horizontally moving along with the pile top, and the stress state of a pile body is enabled to be more consistent with the actual working condition.

Description

technical field [0001] The invention relates to the technical field of mechanical loading test devices, in particular to a self-balancing vertical load loading device, which can be used for vertical static loading in tests of engineering structures such as pile foundations. Background technique [0002] Indoor model test is one of the most important methods to study pile-soil interaction, and the accurate simulation of the load action under actual working conditions is the basis for the success of the test. In the current test technology, when applying vertical load to the model pile, it is mainly used to pile up heavy objects or apply vertical pressure through hydraulic jacks. Due to the small cross-section of the model pile, when the vertical piled load is a large load, the structure is prone to instability and failure, which leads to the failure of the test; and when the hydraulic jack is used, the installation of the jack is complicated and the way of applying the load i...

Claims

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Application Information

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IPC IPC(8): G01N3/14G01N3/62G01N3/02
CPCG01N3/02G01N3/14G01N3/62G01N2203/0019
Inventor 张小玲薛钧元
Owner BEIJING UNIV OF TECH
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