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Assembly type steel pipe casing reinforced concrete combined joint and mounting method

Through the prefabricated steel pipe sleeve reinforced concrete composite joint, the conversion separation sleeve is used to connect the steel pipe to avoid on-site welding. Combined with fiber concrete, the cracking and welding quality problems of high-strength steel bars and concrete structures are solved, and the reliability and resistance of the joints are improved. Shear capacity.

Active Publication Date: 2016-08-24
QINGDAO UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This causes the welding quality of the weld seam to be affected by the construction environment on site and the technical level of the operators, and the quality of the welding cannot be fully guaranteed.
And because of the on-site welding link in the construction, the construction time is prolonged and the project cost is also increased.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Such as figure 1 As shown, the prefabricated steel pipe casing reinforced concrete composite node includes high-strength outsourcing steel pipe, steel bar restraint plate, high-strength steel bar 5, conversion separation sleeve and ordinary outsourcing steel pipe. In this embodiment, the high-strength outsourcing steel pipe, Reinforcement restraining plate, conversion separation sleeve, and ordinary outsourcing steel pipe are respectively high-strength outsourcing circular steel pipe 1, circular reinforcement restraining plate 4, circular conversion separation sleeve 6, and ordinary outsourcing circular steel pipe 9. The upper end and the lower end of the ordinary outsourcing circular steel pipe 9 are provided with a circular conversion separation sleeve 6, and the circular conversion separation sleeve 6 at the upper end of the ordinary outsourcing circular steel pipe 9 is connected with a high-strength outsourcing circular steel pipe 1, and the ordinary outsourcing circ...

Embodiment 2

[0047] In this embodiment, the difference from Embodiment 1 is that, if figure 1 As shown, the inner side of the end of the ordinary outsourcing circular steel pipe 9 and the high-strength outsourcing circular steel pipe 1 is provided with a metal sheet 7, that is, a circle of metal sheet is welded on the inner wall of the steel pipe. Before installation, it can be processed in advance. The purpose is to improve the steel pipe Bite force with concrete.

[0048] All the other are the same as embodiment one.

Embodiment 3

[0050] In this embodiment, the difference from Embodiment 1 is that the vertical partitions on the upper and lower sides of the circular conversion partition sleeve are a continuous cylindrical sleeve, which is an integral structure with the circular plate. The advantage of this is that The structure of the entire circular conversion separation sleeve is more stable and reliable, and the connection with the steel pipe is also more reliable.

[0051] All the other are the same as embodiment one.

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Abstract

The invention relates to an assembly type steel pipe casing reinforced concrete combined joint and a mounting method, and belongs to the technical field of structure engineering. The traditional column beam has problems that the welding quality is unstable and the construction time is long due to existence of a steel tube welding link in a construction process. The invention greatly solves the problem. The assembly type steel pipe casing reinforced concrete combined joint comprises a high-strength outer-coating steel tube, a reinforced steel bar limiting plate, high-strength reinforced steel bars, conversion spacing casings and a common outer-coating steel tube, wherein the conversion spacing casings are arranged at the upper end and the lower end of the common outer-coating steel tube, the conversion spacing casing at the upper end of the common outer-coating steel tube is connected with the high-strength outer-coating steel tube, and the conversion spacing casing at the lower end of the common outer-coating steel tube is connected with the high-strength outer-coating steel tube; the high-strength reinforced steel bars penetrate through the whole common outer-coating steel tube, the upper ends and the lower ends of the high-strength reinforced steel bars are communicated with the interior of the high-strength outer-coating steel tube, the high-strength reinforced steel bars are connected with the conversion spacing casings, and the upper ends and the lower ends of the high-strength reinforced steel bars are connected with the reinforced steel bar limiting plate. The assembly type steel pipe casing reinforced concrete combined joint and the mounting method is applied to building column beams in a building structure.

Description

technical field [0001] The invention relates to an assembled steel pipe casing reinforced concrete composite node and an installation method, belonging to the technical field of structural engineering. Background technique [0002] With the development of technology, high-strength steel has begun to be used in high-rise buildings and long-span building structures. When the reinforced concrete or steel-concrete composite structure designed with high-strength steel bars and high-strength section steel is deformed too much, the concrete combined with high-strength steel bars or high-strength section steel will crack and fall, and then the reinforcement or section steel will buckle locally and cause structural damage. However, the outer-wrapped steel tube concrete composite column designed with high-strength materials has high integrity between the outer-wrapped steel tube and the inner-filled concrete, and due to the interaction between the outer-wrapped steel tube and the inne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/58
CPCE04B1/185E04B1/30E04B2001/2451E04B1/2403E04B2001/2406E04B2001/2415E04B2001/2418E04B2001/246E04B1/388E04B2103/02E04B2103/06E04B1/58
Owner QINGDAO UNIV OF TECH
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