Prestressed Connected Concrete Beam Square Rectangular Steel Tube Concrete Column Joints

A technology of concrete-filled steel tubular columns and rectangular steel pipes, which is applied in the direction of construction and building structure, and achieves the effects of huge economic benefits, improved performance and broad application prospects.

Inactive Publication Date: 2017-06-27
BEIJING UNIV OF TECH
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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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  • Prestressed Connected Concrete Beam Square Rectangular Steel Tube Concrete Column Joints
  • Prestressed Connected Concrete Beam Square Rectangular Steel Tube Concrete Column Joints
  • Prestressed Connected Concrete Beam Square Rectangular Steel Tube Concrete Column Joints

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The joint structure of prestressed concrete beam square rectangular concrete filled steel tube column is as follows: figure 1 Shown:

[0024] 1. Positioning of square and rectangular concrete filled steel pipes

[0025] The steel pipes of the square-rectangular steel-filled steel pipe column 1 are drilled in strict accordance with the drawings in the steel structure processing plant; the steel plate 5 and the channel steel 6 are welded by surrounding welding at the cross-section of the connecting beam of the square-rectangular steel-filled steel pipe column 1; the square-rectangular steel pipe concrete column 1 hoisting positioning.

[0026] 2. Binding beam reinforcement skeleton and prestressed reinforcement fixed

[0027] Support the beam bottom formwork, bind the beam steel skeleton strictly according to the design drawings; support one side of the side formwork, draw the metal bellows positioning line on the side formwork according to the position of the prestress...

Embodiment 2

[0039] See when it is a side column node figure 2 , other measures are the same as embodiment 1, only at the end of the side column, the prestressed tendon is welded on the steel plate 5, and this steel plate can be used as the pressure bearing plate when the prestressed tendon is stretched.

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Abstract

The invention relates to a prestressed connected concrete beam square rectangular steel tube concrete column joint, which belongs to the technical field of building structures. Including square and rectangular steel pipe concrete columns, reinforced concrete beams, prestressed tendons, steel plates, channel steel. It is characterized in that: the square rectangular concrete filled steel pipe column and the reinforced concrete beam are all cast-in-situ; Metal bellows are pre-embedded in the channel; steel plates are welded at the connection section between square and rectangular steel pipe concrete and beams, and there are corresponding holes on the steel plates; channel steel is welded on square and rectangular steel pipes. The invention has fast construction speed, can effectively increase the shear bearing capacity of nodes, enhance its connection performance, and has broad application prospects.

Description

technical field [0001] The invention relates to a prestressed connected concrete beam square rectangular steel pipe concrete column joint, belonging 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, space structures, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04B1/58
Inventor 马华王文静宋坤解咏平李振宝
Owner BEIJING UNIV OF TECH
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