Concrete creep test apparatus and method

The technology of a test device and test method, which is applied in the field of civil engineering, can solve problems such as poor loading stability, large site occupation, and complicated operation, and achieve the reduction of requirements for installing lifting equipment, saving construction, reducing volume and test site area Effect

Inactive Publication Date: 2013-10-02
SOUTHWEST JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the problems of the existing concrete creep test device such as high cost, large site occupation, complicated operation, and poor loading stability, the present invention proposes a loading device and method for concrete creep test

Method used

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  • Concrete creep test apparatus and method
  • Concrete creep test apparatus and method

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Embodiment Construction

[0022] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0023] Such as figure 1 Shown, a kind of concrete creep test device of body embodiment,

[0024] Including three steel beams 11, the steel beams are arranged in layers in space to form a loading base and a set of two-stage levers, that is, the three steel beams 11 are located in the same vertical plane parallel to each other, distributed according to different heights, and It is stipulated that from bottom to top, the loading base steel beam, the first-level lever steel beam and the second-level lever steel beam. The two-stage lever includes a primary lever steel beam and a secondary lever steel beam; wherein, a concrete specimen 4 is installed between the loading base steel beam and the primary lever steel beam, and the concrete specimen 4 is the tested concrete To test the concrete specimen, the steel beam of the loading base is aligned wi...

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Abstract

The invention relates to a loading apparatus and a method for a concrete creep test, and aims at solving the problems of too high cost, large occupied space, complex operations and poor loading stability of a conventional creep test apparatus. The apparatus comprises a loading pedestal formed by three steel beams and a set of two-level levers, wherein the two-level levers comprise a first-level lever steel beam and a second-level lever steel beam. Compared with a conventional single-level lever test apparatus, the apparatus provided by the invention has the beneficial effects that by adopting the two-level lever loading mechanism, the lever loading efficiency for the creep test can be greatly increased, the loading lever length is shortened, the size of the balancing weight and the area of the test site can be reduced, requirements for installing hoisting equipment are lowered, and establishment for large-size concrete pedestal test platforms can be saved.

Description

technical field [0001] The invention belongs to the technical field of civil engineering and relates to concrete creep test technology, in particular to a loading device for concrete creep test and a creep test method thereof. Background technique [0002] Concrete creep test is an important material test work in the field of civil engineering. The test content is mainly to determine the creep characteristics of concrete by applying a long-term constant load to the concrete specimen and measuring the growth of its compressive strain with time. [0003] The requirements of concrete creep test for loading equipment are: stable load, no need to adjust the load after loading or the number of load adjustments is as small as possible, large loading range, simple operation, accurate and convenient measurement and reading, less affected by temperature / humidity, and small size Wait. Due to the limitation of technical conditions, it is relatively difficult to have a loading device th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/28
Inventor 栗怀广何小军徐青松郑凯锋康锐姬然陈力波
Owner SOUTHWEST JIAOTONG UNIV
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