CN210032092U

CN210032092U - Column base node

Info

Publication number: CN210032092U
Application number: CN201920376363.3U
Authority: CN
Inventors: 刘凯; 余励飞; 陈强
Original assignee: Zhejiang Southeast Building Design Co Ltd
Current assignee: Zhejiang Southeast Building Design Co Ltd
Priority date: 2019-03-22
Filing date: 2019-03-22
Publication date: 2020-02-07
Anticipated expiration: 2029-03-22

Abstract

The utility model discloses a column base node has solved among the prior art and has realized the fixed big problem that leads to steel consumption of steel column and ground through a large amount of crab-bolts of welding on the steel column bottom plate, and its technical essential is: the utility model provides an annotate foot node, including concrete foundation, the steel column, concrete foundation is vertical to be seted up downwards and is supplied steel column bottom male basic rim of a cup, steel column bottom end face fixedly connected with area is greater than the bottom plate of steel column bottom terminal surface, the fixed screed-plate that is equipped with on the steel column, the top surface of screed-plate bottom surface laminating concrete foundation, set up the filling hole to filling concrete in the basic rim of a cup on the screed-plate, by the above-mentioned scheme, the filling hole that the realization was utilized on the screed-plate is to filling concrete in the basic rim of a cup, thereby closely knit basic rim of a cup, make the steel column bottom bury underground after the concrete hardening and fix in concrete foundation, and provide the resistance to plucking ability of steel column in vertical direction through the bottom plate, the use of crab-bolt has been reduced.

Description

Column base node

Technical Field

The utility model belongs to the technical field of the technique of steel construction and specifically relates to a column base node is related to.

Background

The column foot joint of a framework column is a link for achieving internal force transmission between the superstructure and the foundation, and the performance and quality thereof are very important for the whole project. The form of the column foot can be simply divided into a hinged type and a rigid type according to the force transmission characteristics, the hinged type and the rigid type only transmit axial force and shearing force, the rigid type can also transmit bending moment transmitted by the column body, and the rigid type column foot can provide rigid constraint for the column body and reduce the lateral deformation of the column body under the action of the axial force. In the current design of the transformation steel framework, the rigid connection type column foot has a plurality of advantages compared with the hinge type column foot, so that the hinge type column foot gradually exits from the historical stage.

To the steel structure factory building that sets up the bridge crane, the steel column generally adopts rigid connection column base more to improve the horizontal anti rigidity of moving of sidesway of factory building. The rigid connection column base usually adopts the anchor bolt formula more, and anchor bolt formula rigid connection column base mainly includes the bottom plate except that the steel column, fixed setting is on the bottom plate and buries the crab-bolt in the concrete foundation and the stiffening rib on the bottom plate, because the steel column only is connected with the concrete through the crab-bolt, for the fixed strength who guarantees the steel column, need use the crab-bolt that the quantity is more to use quantity increase will lead to the increase of bottom plate area when the crab-bolt use quantity rises, the steel consumption of messenger's column foot node is showing the increase.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a be showing the column base node of saving the steel quantity.

The utility model discloses a can realize through following technical scheme:

the column base node comprises a concrete foundation and a steel column, wherein a foundation cup opening for inserting the bottom end of the steel column is vertically and downwards formed in the concrete foundation, the area of the fixedly connected bottom end face of the steel column is larger than that of a bottom plate of the bottom end face of the steel column, a leveling plate is fixedly arranged on the steel column, the bottom surface of the leveling plate is attached to the top surface of the concrete foundation, and a filling hole for filling concrete into the foundation cup opening is formed in the leveling plate.

Through adopting above-mentioned technical scheme, put the steel column into basic rim of a cup in the mouth after, utilize the screed-plate laminating to realize erectting the steel column in the direction of perpendicular to concrete foundation on basic rim of a cup concrete foundation all around, and utilize the filling hole on the screed-plate to the interior filling concrete of basic rim of a cup, thereby closely knit basic rim of a cup, make the steel column bottom bury underground and fix in concrete foundation after the concrete hardening, and because the setting of bottom plate will make the steel column have sufficient resistance to plucking ability in vertical direction, the area of using in a large number of and the bottom plate of crab-bolt has been reduced, thereby reduce the steel consumption volume in the column foot node work progress.

Further setting the following steps: and an anti-pulling anchor bolt is fixedly arranged on the bottom plate.

Through adopting above-mentioned technical scheme for supplementary resistance to plucking that improves the steel column, the stability of reinforcing steel column compares steel column among the prior art and mainly relies on the crab-bolt to be connected with the concrete foundation, and the use amount that has reduced the crab-bolt is stable stronger simultaneously.

Further setting the following steps: and a plurality of stiffening ribs are arranged above the leveling plate at intervals around the steel column.

By adopting the technical scheme, the stability and the torsion resistance of the steel column after installation are obviously improved by using the stiffening ribs.

Further setting the following steps: and the bottom surface of the leveling plate is downwards fixedly provided with shear steel bars.

Through adopting above-mentioned technical scheme, utilize shear reinforcement to further improve the stability that the steel column was buried underground in the concrete foundation, avoid the steel column to produce horizontal rocking under the circumstances such as earthquake.

Further setting the following steps: the depth of the opening of the basic cup is not less than 1.5 times of the length of the section of the steel column.

Through adopting above-mentioned technical scheme, guarantee that the intraoral concrete of basic cup can provide sufficient holding power and bending strength to the steel column when the fixed support steel column.

Further setting the following steps: the depth of the steel column inserted into the base cup is not less than 1/20 the length of the steel column.

Through adopting above-mentioned technical scheme, reinforcing steel column stability after the installation, the depth of extruding the rim of a cup is more big when accounting for steel column length proportion is big the supporting power to the steel column in the horizontal direction is big, and the steel column has big bending resistance promptly.

Further setting the following steps: the concrete filled in the basic cup opening is self-compacting concrete.

Through adopting above-mentioned technical scheme, self-compaction concrete can be under self action of gravity, can flow, closely knit, obtains fine homogeneity simultaneously to do not need the concrete of additional vibration, thereby can paste the closely knit basis rim of a cup that still very convenient behind the concrete foundation top surface with the help of self-compaction concrete at the steel column screed-plate, bury underground and fix the intraoral steel column of basis rim of a cup.

To sum up, the utility model discloses a beneficial technological effect does:

(1) the consumption of steel is obviously reduced when the steel column is installed, and the cost is saved;

(2) the steel column has stable connection and high-strength bending resistance and pulling resistance.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a top view of the present invention;

fig. 3 is a sectional view taken along line a-a of fig. 2.

Reference numerals: 1. a steel column; 2. a concrete foundation; 3. a base cup rim; 4. a base plate; 5. an anti-pulling anchor bolt; 6. a leveling plate; 7. filling holes; 8. shear reinforcement bars; 9. a stiffening rib.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 3, for the utility model discloses a column base node, including steel column 1 and the concrete foundation 2 that is used for fixed steel column 1. The surface of concrete foundation 2 is the level setting, offers simultaneously on concrete foundation 2 and supplies steel column 1 male basis rim of a cup 3. The foundation cup mouth 3 is of a rectangular columnar structure, the opening depth of the foundation cup mouth 3 is larger than 1/20 of the length of the steel column 1, and the opening depth of the foundation cup mouth 3 is larger than 1.5 times of the section length of the steel column 1, so that the concrete foundation 2 can generate larger supporting and bending resistance for the steel column 1 after the steel column 1 is buried in the concrete foundation 2.

Referring to fig. 3, a bottom plate 4 is welded to the bottom surface of the steel column 1, and the bottom plate 4 is perpendicular to the steel column 1, so that the bottom plate 4 can be horizontally disposed after the steel column 1 is vertically inserted into the base cup opening 3. Still weld perpendicularly on the top surface of bottom plate 4 and be used for strengthening the resistance to plucking of steel column 1 resistance to plucking crab-bolts 5, resistance to plucking crab-bolt 5 is equipped with four groups and is the rectangle distribution at bottom plate 4 top surface.

Referring to fig. 2 and 3, the leveling plate 6 perpendicular to the steel column 1 is further welded to the column body of the steel column 1, the area of the leveling plate 6 is larger than the opening area of the basic cup opening 3, and the distance from the bottom surface of the leveling plate 6 to the bottom surface of the bottom plate 4 is equal to the opening depth of the basic cup opening 3, so that the bottom surface of the leveling plate 6 is attached to the surface of the concrete foundation 2 after the steel column 1 is placed in the basic cup opening 3, and the basic cup opening 3 is sealed.

Referring to fig. 1 and 2, simultaneously, a filling hole 7 for filling concrete into the foundation cup mouth 3 is formed in the leveling plate 6, four sets of shear steel bars 8 which are distributed in a rectangular shape are welded on the bottom surface of the leveling plate 6, and the shear steel bars 8 are arranged perpendicular to the leveling plate 6. And stiffening ribs 9 for enhancing the stability and torsion resistance of the steel column 1 are vertically welded on the top surface of the leveling plate 6. Four groups of stiffening ribs 9 are arranged, and the four groups of stiffening ribs 9 are respectively and vertically welded on the four side walls of the steel column 1, so that the four groups of stiffening ribs 9 are distributed in a cross shape by taking the center of the section of the steel column 1 as the center.

It is worth explaining that, the concrete that selects for use is self-compaction concrete when the steel column 1 is put into in the basis rim of a cup 3 and utilizes filling hole 7 to the interior filling concrete of basis rim of a cup 3, because self-compaction concrete is one kind can be under self action of gravity, can flow, closely knit, obtain fine homogeneity simultaneously, and the concrete that does not need additional vibration, thereby can be with the help of self-compaction concrete at the compact basis rim of a cup 3 that 6 closing caps of steel column 1 screed-plate basis rim of a cup 3 back still very convenient, bury underground the steel column 1 in the basis rim of a cup 3, and realize fixed steel column 1 after the self-compaction concrete cooling hardening.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a column base node, includes concrete foundation (2), steel column (1), its characterized in that: concrete foundation (2) is vertical to be seted up downwards and is supplied steel column (1) bottom male basic rim of a cup (3), steel column (1) bottom end face fixedly connected with area is greater than bottom plate (4) of steel column (1) bottom end face, the fixed screed-plate (6) that is equipped with on steel column (1), the laminating of screed-plate (6) bottom surface the top surface of concrete foundation (2), set up filling hole (7) to filling concrete in basic rim of a cup (3) on screed-plate (6).

2. The column shoe node of claim 1, wherein: and an anti-pulling anchor bolt (5) is fixedly arranged on the bottom plate (4).

3. The column shoe node of claim 1, wherein: and a plurality of stiffening ribs (9) are arranged above the leveling plate (6) and surround the steel column (1) at intervals.

4. The column shoe node of claim 1, wherein: and the bottom surface of the leveling plate (6) is downwards fixedly provided with a shear steel bar (8).

5. The column shoe node of claim 1, wherein: the depth of the opening of the basic cup opening (3) is not less than 1.5 times of the section length of the steel column (1).

6. The column shoe node of claim 5, wherein: the depth of the steel column (1) inserted into the basic cup opening (3) is not less than 1/20 of the length of the steel column (1).

7. The column shoe node of claim 1, wherein: the concrete filled in the basic cup mouth (3) is self-compacting concrete.