Concrete lever type tension-compression creep device provided with static pulley

A concrete and lever-type technology, applied in measuring devices, using stable tension/pressure testing materials, instruments, etc., can solve the problems of high cost, occupying a large space, and being unable to be widely used, achieving simple structure, Small footprint effect

Inactive Publication Date: 2015-06-03
CHONGQING JIAOTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the hydraulic creep meter added to the voltage stabilizing system, its voltage stabilizing effect is also very good, but due to its complex structure and high cost, it cannot be widely used
[0008] In actual engineering, when carrying out creep tests on concrete, two types of tests, tensile creep and compressive creep, are generally required. Most of the existing devices can only provide one type of creep test function. Prepare a set of test devices for each test type, not only the cost is high, but also the two sets of devices need to occupy a large space

Method used

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  • Concrete lever type tension-compression creep device provided with static pulley
  • Concrete lever type tension-compression creep device provided with static pulley
  • Concrete lever type tension-compression creep device provided with static pulley

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Embodiment Construction

[0026] A concrete lever-type tension-compression creep device with a static pulley, the innovation of which is: the concrete tension-compression creep device is composed of a support device, a loading device and a specimen connection device;

[0027] The support device includes a base plate 1, a first support frame 1-1, a second support frame 1-2 and a third support frame 1-3, the base plate 1 is fixedly connected to the ground, the first support frame 1-1, the second support frame 1-3 The second support frame 1-2 and the third support frame 1-3 are all arranged on the bottom plate 1, and the axes of the three are parallel to each other, and the second support frame 1-2 is located between the first support frame 1-1 and the third support frame 1. Between -3;

[0028] The loading device includes a large lever 2, a small lever 3, a dowel 4, a pulley 5 and a drag cable 6; On the rim, one end of the drag cable 6 is connected to the upper side of the right end of the large lever 2...

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Abstract

The invention relates to a concrete lever type tension-compression creep device provided with a static pulley. The concrete lever type tension-compression creep device consists of a support device, a loading device and a test piece connecting device; the concrete lever type tension-compression creep device adopts a double-level mechanism to realize tension and compression. The concrete lever type tension-compression creep device has the beneficial technical effects that the device is simple and reliable in structure, is capable of applying a continuous and constant load onto a test piece, and is small in floor space; and two test functions including a tension test and a compression test can be provided by a set of device.

Description

technical field [0001] The invention relates to a test loading device, in particular to a concrete lever type tension-compression creep device with a static pulley. Background technique [0002] Concrete creep refers to the phenomenon that the strain of the structure continues to grow with time under the action of long-term stress. Damage and cracking will lead to structural failure in severe cases. Therefore, it is necessary to conduct creep tests on concrete components to understand their long-term time-varying performance. [0003] Concrete creep test devices generally include loading devices, voltage stabilizing devices, measuring instruments and temperature and humidity control devices. In the prior art, common concrete creep test devices are generally divided into four categories: spring type, lever type, spring type Lever type and hydraulic type. [0004] The spring creep device is loaded by a jack, and the spring reaction force is used to maintain a constant lo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/14G01N3/04G01N3/02
Inventor 郑丹黄才政汪庆陈谦
Owner CHONGQING JIAOTONG UNIVERSITY
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