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An energy-dissipative stiffened steel polymer interlayer pipe and its manufacturing process

A polymer, interlayer technology, applied in the direction of layered products, metal layered products, synthetic resin layered products, etc., can solve the problems of poor impact resistance, poor fatigue resistance, low structural ductility, etc., and achieve good ductility. , Prevent buckling damage, light weight effect

Inactive Publication Date: 2017-05-03
ZHEJIANG INST OF COMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiencies of existing steel-concrete composite members, such as low structural ductility, poor fatigue resistance, poor impact resistance, poor stability, poor durability, and weak bearing capacity, the present invention provides a An energy-dissipative stiffened steel polymer sandwich pipe with high structural ductility, good fatigue resistance, impact resistance, stability, durability, and bearing capacity and its manufacturing process

Method used

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  • An energy-dissipative stiffened steel polymer interlayer pipe and its manufacturing process
  • An energy-dissipative stiffened steel polymer interlayer pipe and its manufacturing process
  • An energy-dissipative stiffened steel polymer interlayer pipe and its manufacturing process

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Embodiment 1

[0032] refer to Figure 1 to Figure 5 , an energy-dissipative stiffened steel polymer sandwich tube, comprising a metal outer tube 1, a metal inner tube 2, n pieces of stiffening plates, a cover plate 6 and a core material 3, where n is an integer greater than or equal to 3, and the metal outer tube 1 Concentrically arranged in the metal inner tube 2, the bottom of the stiffening plate is connected to the outer wall of the metal inner tube 2, and the top of the stiffening plate is connected to the inner wall of the metal outer tube 1. Viewed from the cross section , the n pieces of stiffening plates are arranged on the ring between the metal inner tube and the metal outer tube at equal arc intervals, and the cover plate is installed at one end of the metal inner tube 2 and the metal outer tube 1 6. An open cavity with one end open and one end closed is formed between the metal inner tube 2, the metal outer tube 1, n stiffening plates and the cover plate 6, and the core materia...

Embodiment 2

[0045] refer to Figure 1 to Figure 5 , a manufacturing process for an energy-dissipative stiffened steel polymer sandwich pipe, the manufacturing process comprising the steps of:

[0046] A. Arrange n pieces of stiffening plates and other arc intervals on the ring of the metal inner tube, n is an integer and greater than or equal to 3;

[0047] B. Sandblasting the metal inner tube and the metal outer tube provided with n stiffening plates;

[0048] C. Place the metal inner tube concentrically in the metal outer tube, and connect the same end of the metal inner tube and the metal outer tube to the cover plate;

[0049] D. The microbead-polyurethane composite material is injected into an open cavity with one end open and one end closed between the metal inner tube, metal outer tube, n stiffening plates and cover plates, and solidified to form a core material;

[0050] E. Cut off the cover plate, and grind the two ends of the energy-stiffening steel-polymer interlayer pipe to ...

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Abstract

An energy-dissipative stiffened steel polymer sandwich tube, comprising a metal outer tube, a metal inner tube, n pieces of stiffening plates, a cover plate and a core material, where n is an integer and greater than or equal to 3, the metal outer tube is concentrically arranged in the metal inner tube, and the stiffening The bottom of the plate is connected to the outer wall of the metal inner tube, and the top of the stiffening plate is connected to the inner wall of the metal outer tube. From the perspective of the cross section, n pieces of stiffening plates are arranged at intervals between the metal inner tube and the metal outer tube. On the ring, a cover plate is installed at one end of the metal inner tube and the metal outer tube, and an open cavity with one end open and one end closed is formed between the metal inner tube, metal outer tube, n stiffening plates and the cover plate, and the filling core in the open cavity is The core material is microbead-polyurethane composite material. And a manufacturing process of an energy-dissipating stiffened steel polymer interlayer pipe. The structure of the invention has high ductility, good fatigue resistance, impact resistance, stability, durability and bearing capacity.

Description

technical field [0001] The invention belongs to the field of civil engineering, and relates to a sandwich steel pipe and a manufacturing process thereof. It is used in the fields of construction engineering, bridge engineering and marine engineering. Background technique [0002] At present, in the large-span, overrun, space structures and offshore platforms of civil engineering, steel pipes or steel-concrete composite pipes are used as basic unit components. Steel pipe members are prone to overall stability failure. Once the steel pipe members are damaged, the entire structure will fail, which will affect the stability and safety of the structure. In order to prevent the above situation, the traditional method is to increase the thickness of the steel pipe to improve the stability of the joints. Bearing capacity, this method has the following defects: 1. The improvement of the bearing capacity of steel pipe members increases the rigidity of the structure and reduces the du...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04C3/00E04C3/29E04C3/36E04B1/98E01D19/00B32B1/08B32B15/18B32B15/095B32B27/04
Inventor 杭振园
Owner ZHEJIANG INST OF COMM
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