Laying method of prestressed steel cable in steel pipe body

A technology of prestressed steel cables and steel pipes, applied in the processing of building materials, construction, building construction, etc., can solve problems such as damage, low construction efficiency, and increased difficulty in quality control, achieve excellent bearing capacity characteristics, and save materials Effect

Active Publication Date: 2019-06-04
浙江中南绿建科技集团有限公司
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  • Claims
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AI Technical Summary

Problems solved by technology

Using this method increases the workload of welding between sections, resulting in low construction efficiency; at the same time, it will also cause damage to the steel wires of the prestressed steel cable due to welding, and the difficulty of quality control due to welding deformation increases

Method used

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  • Laying method of prestressed steel cable in steel pipe body
  • Laying method of prestressed steel cable in steel pipe body
  • Laying method of prestressed steel cable in steel pipe body

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Experimental program
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Embodiment Construction

[0040] Such as Figure 1 to Figure 11 Shown, be the prestressed steel cable laying method in the steel pipe body of the present invention, comprise the steps:

[0041] (a) The raw materials for laying the prestressed steel cables 3 are inspected according to the project management requirements, and the bottom chord 5 is inspected through the ball at the same time.

[0042] The specific ball-passing inspection is to first set a ball-passing steel wire rope 11 inside the lower chord 5, and then hang a steel ball 10 on the end of the lower chord 5. The steel ball 10 is connected with the ball-passing steel wire rope 11. The outer diameter of the steel ball 10 is less than The inner diameter of the lower chord 5 is 2-4mm smaller. Then the steel wire rope 11 for passing the ball is pulled, and the steel ball 10 is drawn out from the other end of the lower chord 5, and the steel ball 10 passes smoothly to illustrate that the inner wall of the lower chord 5 meets the requirements. ...

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Abstract

The invention discloses a method for laying a prestressed cable in a steel pipe body. The method comprises the following steps that (a), raw materials for laying of the prestressed cable are inspected according to the engineering management requirements, and meanwhile a pigging test is conducted on a lower chord; (b), a pressed steel structure is assembled; (c), a second layer of traction wire ropes is laid; (d), the prestressed cable is laid; and (e), after the laying of the prestressed cable is completed, an anchor plate at the end of the prestressed cable and the lower chord are assembled, welded and fixed. By the adoption of the method, the laying of the prestressed cable can be completed at a time, and the disadvantages caused by a common process are avoided effectively; and meanwhile the used measure materials are reusable environmental-friendly building materials, the materials can be saved, and the environmental friendliness is achieved.

Description

technical field [0001] The invention belongs to the technical field of internal prestressed steel cable structures, and in particular relates to a method for laying prestressed steel cables inside a steel pipe. Background technique [0002] In the design, manufacture, construction, and reinforcement of steel structures, the prestress with the opposite sign of the external load stress is artificially introduced into the load-bearing structure system to improve the load-bearing characteristics of the structure, and to make use of the strength amplitude of the material as much as possible or in the main load-bearing structure. The introduction of pre-tension in the structure so that all members can resist compression or forming is called prestressed reinforced steel structure or prestressed steel structure. [0003] Internal prestressed steel cable structure is a novel prestressed steel structure system. Compared with external prestressed structure, it can give full play to the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04G21/12
CPCE04G21/12
Inventor 袁国平王宇伟何海王克王自若来丽敏赵凡蒋永扬
Owner 浙江中南绿建科技集团有限公司
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