Retardation setting tendon cladding equipment and uses thereof

A prestressed tendon and cladding device technology, which is applied in the direction of construction, building structure, and building material processing, can solve problems such as not being able to meet construction requirements well, and achieve the effects of light weight, simple operation, and compact and reasonable layout

Inactive Publication Date: 2005-06-15
LANZHOU JIAOTONG UNIV
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  • Abstract
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AI Technical Summary

Problems solved by technology

"Research on the Application of Retarding Materials in Post-tensioned Prestressed Concrete Members" passed the ministerial appraisal in 2001. Retarding prestressing technology has been applied to engineering practice. Winding and wrapping on prestressed steel bars can not meet the construction requirements well. A device that can continuously and reliably coat retarded mortar on prestressed steel bars—mechanized construction equipment, is retarded mortar and retarded bonded prestressed steel. The key link for the system to be popularized and applied

Method used

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  • Retardation setting tendon cladding equipment and uses thereof
  • Retardation setting tendon cladding equipment and uses thereof

Examples

Experimental program
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Effect test

Embodiment Construction

[0011] Refer to figure 1 , figure 2 This embodiment is composed of a traction mechanism 3, a retarded mortar propulsion mechanism 4, a plastic coating mechanism 16, a shaping cooling system 11, and a drag control system 18, and they are all arranged on a frame. The traction mechanism 3 adopts frequency conversion speed regulation, covered belt structure, the covered belt compresses and transports the prestressed steel bar 1, and the hand wheel 2 adjusts the pressing force. This structure has a large traction force, a wide speed range, and the prestressed steel bar is not easy to slip, especially When running at low speed, it has harder mechanical characteristics to prevent creeping, thus realizing continuous, reliable and stable transportation of prestressed steel bars, and controlling the cross-sectional size of the coated products, so that the coating process can be carried out stably; retarded mortar The propulsion mechanism 4 is composed of a hydraulic motor 19, a hopper 5, a...

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Abstract

The retarded prestressed tendon cladding device is a construction tool for applying the new retarded prestressed tendon to the prestressed concrete system. It can automatically and continuously wrap a layer of retarded mortar on the prestressed steel bar with plastic seal to form a retarded prestressed tendon product, and the retarded prestressed tendon is applied to the prestressed concrete member to form a non-bonded prestressed The advantages of stress-reinforced concrete members are bonded prestressed-reinforced concrete members. The device has compact structure, unique structure, integrated electromechanical and hydraulic, simple operation, convenient transportation and cleaning, and can be operated on the construction site.

Description

(1) Technical field [0001] The invention relates to a construction machine tool for prestressed concrete components, and belongs to a slow setting prestressed tendon coating device used in a slow bonding prestressed concrete system. (2) Background technology [0002] The compressive properties of concrete are good, but the tensile properties are poor. In order to prevent the concrete from breaking when subjected to tensile stress, high-strength steel bars are embedded in it, and then pre-tension stress is applied to the steel bars to make the concrete bear higher pre-compression stress. This can give full play to the advantages of higher concrete compressive strength and higher tensile strength of steel bars, and jointly resist the effect of external forces, avoid concrete cracking and reduce crack width, and improve the bearing capacity of concrete beams and slabs. This is prestressed concrete. technology. [0003] The emergence of prestressed concrete structures has expanded th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04G21/12
Inventor 张建辉李怀东高廷阳薛德胜
Owner LANZHOU JIAOTONG UNIV
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