An inner diaphragm type concrete filled steel pipe transfer node structure and its construction method

A technology of steel pipe concrete and transfer nodes, which is applied in the direction of building structure and construction, and can solve the problems of reduced use space of transfer floor buildings, low bearing capacity of reinforced concrete components, and poor confinement effect of core concrete, so as to ensure construction quality, Good lateral force resistance and fewer force transmission units

Active Publication Date: 2017-10-20
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The bearing capacity of reinforced concrete members is low. In order to meet the safety requirements, the cross-sectional size of the inclined column and the volume of the joints are large, which will reduce the use of space in the transfer floor building and inconvenience the passage of pipelines.
[0007] (2) Node construction is difficult
However, when this connection method is used, only rectangular steel pipe concrete members can be used, and the rectangular steel pipe has a poor restraint effect on the core concrete, and the economic benefit is low

Method used

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  • An inner diaphragm type concrete filled steel pipe transfer node structure and its construction method
  • An inner diaphragm type concrete filled steel pipe transfer node structure and its construction method
  • An inner diaphragm type concrete filled steel pipe transfer node structure and its construction method

Examples

Experimental program
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Effect test

Embodiment 1

[0066] An inner diaphragm type concrete-filled steel tube transfer node structure, including a pillar 1, a slanting column 2, and a receiving frame 3 for connecting the slanting column to the pillar. The slanting column has a section, and the section includes a cross section 7. The receiving frame Fixedly arranged inside the pillar and located at the top of the pillar, the receiving frame includes a lower inner partition 4 and a vertical inner rib 5, and the vertical inner rib is fixed on the lower inner partition, wherein the shape of the vertical inner rib is consistent with the inclined The shape of the cross-section of the column is corresponding, and the oblique column is fixed to the vertical inner floor through the cross-section.

[0067] Preferably, the receiving frame is also provided with a protruding vertical inner rib 6 protruding from the outside of the pillar, and the section also includes a vertical section 8, the protruding vertical inner rib is fixed on the low...

Embodiment 2

[0077] The difference between this embodiment and the first embodiment is that the slanted columns are two circular slanted columns 21, the cross section of the slanted columns is an arc-shaped cross section, and the cross section of the two slanted columns forms an arc section , the vertical section of the inclined column is an arc-shaped vertical section, the vertical inner ribs enclose an arc joint 161, the protruding vertical inner ribs are arranged in the middle of the arc joint, and the arc cross-sections are fixedly connected On the arc joint, the arc vertical sections of the two oblique columns are respectively fixedly connected to the two sides of the protruding vertical inner ribs. The vertical inner ribs can be two arc-shaped vertical inner ribs 51, and the openings of the two arc-shaped vertical inner ribs are respectively fixedly connected with the protruding vertical inner ribs.

Embodiment 3

[0079] A construction method for an inner diaphragm type concrete-filled steel pipe conversion node, which cuts the nozzle of the inclined column to be connected, and cuts out a cross section and a vertical section respectively;

[0080] Make the vertical inner ribs into the same shape as the cross-section of the inclined column, then set the protruding vertical inner ribs in the middle of the shape surrounded by the vertical inner ribs, and place the bottom of the protruding vertical inner ribs and the vertical inner ribs The bottom of the plate is welded to the lower inner partition, and the outer edge of the lower inner partition is welded to the inner wall surface of the pillar, and the lower inner partition has a first pouring hole, and the upper part of the protruding vertical inner rib protrudes from the pillar outside;

[0081] Butt the pillar with the lower CFST column, and pour concrete to the node area;

[0082] Hoist the inclined column in place and weld the cross...

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Abstract

The invention discloses an inner diaphragm type concrete-filled steel pipe transfer node structure and a construction method thereof, wherein an inner diaphragm type steel pipe concrete transfer node structure includes a pillar, a slanted column and a socket for connecting the slanted column to the pillar There is a section on the inclined column, and the section includes a cross section. The receiving frame is fixedly arranged inside the pillar and is located at the top of the pillar. The receiving frame includes a lower inner partition and a vertical inner rib, and the vertical inner rib is fixed on the On the lower inner partition, the shape of the vertical inner rib corresponds to the cross-sectional shape of the oblique column, and the oblique column is fixed to the vertical inner rib through the section. The invention combines the advantages of the steel pipe concrete and inclined column conversion structure, and has the advantages of direct force transmission, high bearing capacity, small component cross-sectional size, favorable use of building space, no need for formwork, less on-site welding workload, and guaranteed construction quality, etc. advantage. The two slanted columns and the beam system constitute a triangular force transmission mode, and have good resistance to lateral forces.

Description

technical field [0001] The invention relates to a building transfer node structure and a construction method thereof, in particular to an inner partition type steel pipe concrete transfer node structure and a construction method thereof. Background technique [0002] As the functions and forms of high-rise and super high-rise buildings continue to diversify, the application of transfer floors is becoming more and more extensive. The inclined column transfer structure has transfer members, which mainly bear the axial load, has the characteristics of short force transmission path and small cross-sectional size of the transfer members, which is beneficial to the use of architectural space, so it has a wide application prospect. In addition, because the transition member mainly bears axial load, it is suitable to adopt the CFST member. The size of steel pipe concrete members is smaller than that of traditional reinforced concrete members, and it saves formwork and does not need...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04B1/21
Inventor 左志亮蔡健杨春陈庆军姜正荣刘达鑫张成天
Owner SOUTH CHINA UNIV OF TECH
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