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A prestressed loading device and loading method for a component

A technology of prestressing and prestressing tendons, which is applied in the direction of measuring devices, using repeated force/pulsation force to test the strength of materials, instruments, etc., can solve the problems of serious stress loss, difficulty in reaching the stress value, and inability to establish test conditions, etc. Achieve the effect of reducing stress loss and improving reliability

Active Publication Date: 2021-11-26
CENT RES INST OF BUILDING & CONSTR CO LTD MCC GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For relatively small components, the stress loss is very serious due to the retraction of the anchorage during the loading process of the ordinary prestressed loading method, and it is difficult to reach the predetermined stress value, and the effective stress after loading is very difficult to control and cannot be established. reliable test conditions

Method used

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  • A prestressed loading device and loading method for a component
  • A prestressed loading device and loading method for a component
  • A prestressed loading device and loading method for a component

Examples

Experimental program
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Embodiment 1

[0026] First aspect, such as Figure 1-4 As shown, the embodiment of the present invention provides a prestressed loading device of a member, including a tensile end anchor and a fixed end anchor: the tensile end anchor includes a first anchor ring 1 and a first clip. The first mounting hole 11 is provided on the first anchor ring 1, the first clip located within the first mounting hole 11, and the outer side of the first anchor ring 1 is connected to a pre-tightening steel sleeve 2; The fixed end anchor includes a second anchor ring and a second separator, and the second mounting hole is opened, the second clip located within the second mounting hole; the tension anchor And the fixed end anchor is respectively used to connect with the tensile end of the member and a prestressed end of the fixed end.

[0027] In this embodiment, since the first clip does not belong to the invention of the present embodiment, figure 1 with image 3 The first clip and the connection relationship of th...

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Abstract

The embodiment of the invention discloses a component prestress loading device and a loading method, which relate to the research field of aging tests of prestressed concrete structures, and improve the reliability of component prestress loading. A prestressed loading device for a component, including a tension end anchor and a fixed end anchor: the tension end anchor includes a first anchor ring and a first clip, and a first anchor ring is provided with a first The installation hole, the first clip is located in the first installation hole, the outer side of the first anchor ring is connected with a pre-tightening steel sleeve; the fixed end anchor includes a second anchor ring and a second clip, A second installation hole is opened on the second anchor ring, and the second clip is located in the second installation hole; the tension end anchor and the fixed end anchor are respectively used to connect with the member The tension end and the fixed end of the prestressed tendon connection. The embodiments of the present invention are mainly used for prestressed loading of concrete components.

Description

Technical field [0001] The present invention relates to the field of aging test research of prestressed concrete structures, and more particularly to a prestressed loading apparatus and a loading method of a member. Background technique [0002] The reinforced concrete structure in the building does not work in stress, even if the non-prestressed structure is in stress. The aging study of ordinary concrete components (lengths of about 4-6 m) is often carried out in non-stress, and the true state of the structural member cannot be actually reflected. The aging test study of prestressed concrete structures has reference value for prestressed structures and ordinary reinforced concrete. [0003] The aging test of domestic prestressed concrete structures has not seen a large change in recent years, in which component production has been highlighted. Due to the limitations of test conditions and instrumentation, the size of the required member is relatively small (the length is probab...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/32
CPCG01N3/32G01N2203/0005G01N2203/0017
Inventor 肖辉张元见薛华俊郑洁林森刘健丛敏杜晓秋刘春英杨建国王硕华肖勋李国欣孙一斌杨林孟亚军
Owner CENT RES INST OF BUILDING & CONSTR CO LTD MCC GRP
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