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Subdivision type concrete filled steel tubular column for super high-rise building and subdivision design method of subdivision type concrete filled steel tubular column

A technology for concrete-filled steel tubular columns and buildings, which is applied to columns, pillars, piers, etc., can solve the problems of lack of accurate calculation or scientific calculation, large welding workload, uneven force, etc. The effect of preventing hollowing and improving stability

Pending Publication Date: 2021-06-01
CHINA NORTHWEST ARCHITECTURE DESIGN & RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Concrete-filled steel tube columns 2 of high-rise buildings usually have empty drums on the side walls of the steel tubes due to the mismatch between the force of the steel tubes and the thermal expansion coefficient of concrete during the pouring process. The traditional anti-aircraft drum method is to use rectangular concrete-filled steel tube columns 2 Reinforcement measures such as welding studs and vertical stiffeners are used to prevent hollowing. However, the welding workload is relatively large, and new problems are likely to be caused during the welding process. In addition, the existing reinforcement measures are based on experience. The force and cost of the reinforcement measures have not been accurately calculated or scientifically calculated, which may easily lead to problems such as uneven force, reinforcement failure, and cost waste.

Method used

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  • Subdivision type concrete filled steel tubular column for super high-rise building and subdivision design method of subdivision type concrete filled steel tubular column
  • Subdivision type concrete filled steel tubular column for super high-rise building and subdivision design method of subdivision type concrete filled steel tubular column
  • Subdivision type concrete filled steel tubular column for super high-rise building and subdivision design method of subdivision type concrete filled steel tubular column

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Embodiment 1

[0050] The size of the rectangular concrete filled steel tube column 2 in this embodiment is 1000*1500, the wall thickness is 30mm, and the column height is 6000mm. The inner partition ring plate 3 material adopts Q235B, and the vent hole 31 is an isosceles right-angled triangle whose right angle side length is 50mm, and the vent hole 31 is opened on four corners of the inner partition ring plate 3 .

[0051] The upper and lower spacing of the inner partition ring plate 3:

[0052] The quantity q=6000 / 1125≈5 (pieces) of the inner partition ring plate 3

[0053] Inner partition ring plate 3 thickness:

[0054] Take 6mm.

[0055] By adding 5 layers of inner partition ring plate 3 in the steel pipe column, the inner partition ring plate 3 is integrated with the steel pipe column and the concrete after pouring concrete, and the multi-layer inner partition ring plate 3 exerts lateral restraint on the side wall of the steel pipe column to prevent The side wall of the steel pi...

Embodiment 2

[0057] The size of the rectangular concrete-filled steel tube column 2 in this embodiment is 1500×1500, the wall thickness is 35 mm, and the column height is 5400 mm. The material of the inner partition ring plate 3 is Q235B, and the vent hole 31 is an isosceles right triangle with a right angle side length of 50 mm.

[0058] The upper and lower spacing of the inner partition ring plate 3:

[0059] The quantity q=5400 / 1985≈3 (pieces) of the inner partition ring plate 3

[0060] Inner partition ring plate 3 thickness:

[0061] Take 8mm thick.

[0062] By adding three layers of inner partition ring plates 3 in the steel pipe column, the inner partition ring plate 3 is integrated with the steel pipe column and the concrete after pouring concrete, and the multi-layer inner partition ring plate 3 exerts lateral restraint on the side wall of the steel pipe column to prevent The side wall of the steel pipe column is hollow.

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Abstract

The invention belongs to the technical field of constructional engineering, and particularly relates to a subdivision type concrete filled steel tubular column for a super high-rise building and a subdivision design method of the subdivision type concrete filled steel tubular column. The subdivision type concrete filled steel tubular column for the super high-rise building is characterized in that a plurality of layers of inner spacer ring plates are arranged in a steel tubular column of the concrete filled steel tubular column in the storey height direction, and pouring holes are formed in the middles of the inner spacer ring plates. According to the subdivision type concrete filled steel tubular column for the super high-rise building, the growth law of bamboo in the nature is used for reference, expansion of concrete and stretching of a steel tube are complementary in phase, the combination effect between the concrete and the steel tube is better exerted, the hollowing phenomenon of the side wall of the steel tube is effectively prevented, the distribution distance and the thickness of the inner spacer ring plates are evaluated according to the storey height and the performance of a steel plate, so that the parameter selection of the inner spacer ring plates is positively correlated with the stress, the design is reasonable, the column and beam connecting joint is reinforced in an auxiliary mode, the bending resistance and shearing resistance of a beam and column connecting joint are improved, and the stability of a frame structure is improved in an auxiliary mode.

Description

technical field [0001] The invention belongs to the technical field of construction engineering, and in particular relates to a subdivided steel pipe concrete column for a super high-rise building and a subdivided design method thereof. Background technique [0002] The concrete-filled steel tube column 2 of super high-rise buildings is a structure composed of steel tubes and concrete. The interaction force between steel tubes and concrete is used to form a "cuff effect", which improves the mechanical performance of each other and maximizes their respective strengths. performance advantage. [0003] Concrete-filled steel tube columns 2 of high-rise buildings usually have empty drums on the side walls of the steel tubes due to the mismatch between the force of the steel tubes and the thermal expansion coefficient of concrete during the pouring process. The traditional anti-aircraft drum method is to use rectangular concrete-filled steel tube columns 2 Reinforcement measures ...

Claims

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Application Information

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IPC IPC(8): E04C3/34G06F30/13
CPCE04C3/34G06F30/13G06F2111/04
Inventor 刘锋马牧李丹莎王璟姚尧陶倍林龙婷
Owner CHINA NORTHWEST ARCHITECTURE DESIGN & RES INST CO LTD