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Prestress connected precast concrete beam rectangular steel tube concrete column node

A technology of concrete-filled steel tubular columns and precast concrete, which is applied in the directions of buildings and building structures to achieve the effects of reducing weakening effect, improving performance and having broad application prospects.

Active Publication Date: 2014-07-16
南通朵觅电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many forms of existing CFST joints, and the difficulties in construction and design of joints often become the bottleneck factor restricting the popularization and application of new and excellent structures

Method used

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  • Prestress connected precast concrete beam rectangular steel tube concrete column node
  • Prestress connected precast concrete beam rectangular steel tube concrete column node
  • Prestress connected precast concrete beam rectangular steel tube concrete column node

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The joint structure of prestressed concrete beam square rectangular concrete filled steel tube column is as follows: figure 1 Shown:

[0023] 1. Manufacture of square and rectangular steel pipe concrete and reinforced concrete beams

[0024] Square rectangular concrete-filled steel tube columns (1) and reinforced concrete beams (2) are produced in the factory in strict accordance with relevant specifications and drawings. Four corresponding channels are reserved during prefabrication. The corrugated pipe (4) is welded to the ring plate (5) and the channel steel (6) at the interface of the connecting beam on the square rectangular concrete filled steel pipe column (1) by means of surrounding welding.

[0025] 2. Assembly of beam-column joints

[0026] After the square-rectangular concrete-filled steel tube column (1) is positioned, the reinforced concrete beam (2) is hoisted and positioned through support.

[0027] 3. Tensile prestressed tendons

[0028] Wear the pre...

Embodiment 2

[0034] See when it is a side column node figure 2 , other measures are the same as embodiment 1, except that the prestressed tendon is welded on the ring plate (5) at the end of the side column, and this ring plate can be used as a pressure bearing plate when the prestressed tendon is stretched.

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Abstract

The invention provides a prestress connected precast concrete beam rectangular steel tube concrete column node, and belongs to the technical field of architecture structures. The prestress connected precast concrete beam rectangular steel tube concrete column node comprises a rectangular steel tube concrete column, a reinforced concrete beam, a prestress tendon, a steel plate and box iron. The rectangular steel tube concrete column (1) and the reinforced concrete beam (2) are precast; a hole channel is reserved at the position, corresponding to a beam cross-section, of a precast reinforced concrete beam and the rectangular steel tube concrete column, a metal bellows (4) is pre-buried in the hole channel; the steel plate (5) is welded at the connection cross-section position of the rectangular steel tube concrete column (1) and the reinforced concrete beam (2); the (6) box iron is welded on the rectangular steel tube; the prestress tendon (3) is arranged in the metal bellows (4) in a rear penetration mode; and prestress tendon (3) stretch-draw is conducted, hole channel grouting is finished within 48 hours after the stretch-draw, and the beam column is integrated into a whole. The prestress connected concrete beam round steel tube concrete column node is quick in construction speed, capable of increasing shear capacity of the node and enhancing the connection performance, and wide in the application prospect.

Description

technical field [0001] The invention relates to a prestressed connection prefabricated concrete beam square rectangular steel tube concrete column joint, which belongs to the technical field of building structures. Background technique [0002] Concrete filled steel tubes have been used in construction projects for more than 100 years. Concrete filled steel tubes are valued by engineering circles because of their high bearing capacity, good plasticity and toughness, good economic effect and convenient construction. Concrete-filled steel tubes can adapt to the needs of modern engineering structures to develop toward large spans, high towers, heavy loads and withstand harsh conditions, and meet the industrial requirements of modern construction technology. Therefore, they are being more and more widely used in single-story and multi-story industrial factory buildings Good economic and architectural effects have been achieved in equipment frame columns, trestle columns, piles,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/58
Inventor 李振宝王倩倩解咏平宋坤马华
Owner 南通朵觅电子科技有限公司
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