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Prefabricated concrete box culvert using grouting method and bidirectional anchoring system as well as mounting structure and method thereof

A technology of prefabricated concrete and box culverts, which is applied in the fields of earthwork drilling, underwater structures, and foundation structure engineering, etc. It can solve problems such as cutting off steel bars, large loss of steel bar materials, and reduced prestress of steel tendons, so as to avoid damage , loss reduction, strong connection effect

Inactive Publication Date: 2008-06-25
朴斗绪 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the length of the tendon is only 2-4 meters. When using the unidirectional tendon anchorage device, the prestress of the tendon will be greatly reduced due to the sliding of the tendon during the fixing of the tendon and the creep of the fixing stage.
[0005] In addition, when the one-way anchoring device is used, the concrete pile (blockout) used by the box culvert to fix the steel tendons is located on the inner wall surface of the precast concrete box culvert, so that the reinforcement bars arranged must be cut off, causing water to leak from the pile come out
In addition, when the one-way tendon anchoring device is used, since the tendon is cut from the middle of the precast concrete box culvert wall, the loss of reinforcement material is relatively large

Method used

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  • Prefabricated concrete box culvert using grouting method and bidirectional anchoring system as well as mounting structure and method thereof
  • Prefabricated concrete box culvert using grouting method and bidirectional anchoring system as well as mounting structure and method thereof
  • Prefabricated concrete box culvert using grouting method and bidirectional anchoring system as well as mounting structure and method thereof

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Embodiment Construction

[0023] The following is an introduction to a preferred embodiment of the present invention according to the accompanying drawings. In the following introduction of the present invention, in order to briefly introduce the subject matter of the present invention, related known functions and structures will not be described in detail.

[0024] figure 1 is a perspective view of a precast concrete box culvert assembled according to one embodiment of the invention, figure 2 is a perspective view of a precast concrete box culvert according to an embodiment of the present invention, image 3 yes figure 2 The front view of the precast concrete box culvert seen in the direction of arrow D in .

[0025] As shown in these drawings, a joint surface of the precast concrete box culvert is provided with a mortar recess 211, and when the precast concrete box culverts are connected to each other, a space can be created through which mortar can be filled. The mortar recess 211 is provided ...

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Abstract

The invention discloses a pre-fabricated concrete box culvert, the assembly structure thereof and an assembly method. The invention can ensure that the mortar is completely filled on a connecting surface of the pre-fabricated concrete box culvert, thereby furthest reducing the pre-stress damage caused by the sliding when the reinforcing steel bar is fixed, and allowing the pre-fabricated concrete box culvert to be assembled into a structure with extremely strong adhesion force, firmness and reliability, furthest reducing the loss of the bundled reinforcing steel bars and avoiding the damage to the structure.

Description

technical field [0001] The present invention generally relates to concrete box culverts, assembly structures of precast concrete box culverts and assembly methods thereof. More particularly, the present invention relates to firmly and continuously connecting one precast concrete box culvert to another precast concrete box culvert by filling the space of the connecting portion with mortar and tensioning tendons provided in the box culvert using bidirectional anchoring devices. The invention also relates to structures and methods for the continuous assembly of precast concrete box culverts. Background technique [0002] Precast concrete box culverts (hereinafter referred to as precast concrete box culverts) are assembled in such a way that the precast concrete box culverts are arranged longitudinally and continuously, and then their connecting surfaces are connected. When assembling precast concrete box culverts, it is critical that each of its connecting faces be firmly and ...

Claims

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Application Information

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IPC IPC(8): E02D29/045E21D11/04
Inventor 朴斗绪黄赞九
Owner 朴斗绪
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