CN204753839U - Support between steel column and use connecting device - Google Patents

Abstract

The utility model discloses a connecting device for supporting between steel columns, which is mainly composed of a steel column, an extension arm, an end plate, an inter-column support and high-strength bolts, one end of the extension arm is welded with the steel column and protrudes obliquely, The other end of the arm is welded with an end plate, and both ends of the column support are welded with end plates. Bolt holes are opened on the end plates. The outrigger and the column support are fixed and connected through the end plate and high-strength bolts. The inter-column support is H section steel. By adopting the utility model, the number of connecting plates and high-strength bolts used at the joint between the outrigger and the column support is greatly reduced, the engineering cost is reduced, the manufacturing process is simplified, and the construction efficiency on site is improved.

Description

Connecting device for support between steel columns

technical field

The utility model relates to a steel structure connection structure, in particular to a connection device for supporting between steel columns.

Background technique

In recent years, high-strength bolt connection has developed into one of the main connection forms of steel structures that are developed simultaneously with welding. It has the advantages of good mechanical performance, fatigue resistance, good seismic performance, high connection stiffness, and easy construction. It is widely used in construction steel In the connection of structural sites, it has become one of the main means of steel structure installation.

In the construction process of steel structures connected by high-strength bolts, the joints connected with columns and beams are usually processed by splicing the full section of components on site for the support between H-shaped steel columns. The web and flange parts of each joint need to be provided with gusset plates. Then connect through high-strength bolts, the number of high-strength bolts required is large, the size of the gusset plate is large, and the construction is cumbersome.

Utility model content

In order to solve technical problems such as large number of high-strength bolts, large gusset plate size and cumbersome construction in the splicing of H-shaped steel column supports in the prior art, the utility model provides a connecting device for support between steel columns, which optimizes The on-site construction process reduces the construction workload.

The connecting device for supporting between steel columns provided by the utility model is mainly composed of steel columns, extension arms, end plates, inter-column supports and high-strength bolts, one end of the extension arm is welded to the steel column and extends obliquely, and the other end of the extension arm End plates are welded at one end, and end plates are welded at both ends of the inter-column support. Bolt holes are opened on the end plates. The outrigger and inter-column support are fixedly connected by end plates and high-strength bolts. The outrigger arm is made of H-shaped steel or made of It is made of spliced steel plates, and the support between columns is H-shaped steel.

Compared with the prior art, the utility model replaces the web gusset plate and the flange gusset plate (outer flange gusset plate and inner flange gusset plate), so that the number of connecting plates and high-strength bolts used at the joint between the outrigger and the column support is greatly reduced, the engineering cost is reduced, the manufacturing process is simplified, and the on-site construction is improved. efficiency. At the same time, after adopting the utility model, the requirements for construction accuracy at the connection nodes are reduced. If there is a slight deviation in the centering of the high-strength bolts, it can be adjusted by reaming the bolt holes. When there is a gap between the end plates, a backing plate can also be added to reduce the The difficulty of on-site construction.

Description of drawings

Fig. 1 structural representation of the connecting device for supporting between steel columns of the present utility model;

Fig. 2 is A-A direction view among Fig. 1;

FIG. 3 is a schematic diagram of a connection structure provided by the prior art;

Fig. 4 is the schematic diagram of the connection between the web gusset plate and the flange gusset plate in Fig. 3;

Fig. 5 is a schematic structural diagram of the connection of the outer flange gusset plate in Fig. 4;

Fig. 6 is a schematic diagram of the connection of the inner flange gusset plate in Fig. 4 .

In the figure: 1-steel column, 2-extending arm, 3, 4-end plate, 5-column support, 6-high-strength bolt, 7-web gusset plate, 8-outer flange gusset plate, 9-inner Flange gusset.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described.

Fig. 1 is a structural schematic diagram of the connecting device for supporting between steel columns of the utility model, as can be seen from the figure, the connecting device for supporting between steel columns provided by the utility model is mainly composed of a steel column 1, an extension arm 2, an end plate 3, an end plate Plate 4, inter-column support 5 and high-strength bolts 6. One end of the extension arm 2 is welded to the steel column 1 and protrudes obliquely. The other end of the extension arm 2 is welded with an end plate 3, and one end of the inter-column support 5 is welded with The end plate 4, the end plate 3 and the end plate 4 are all provided with bolt holes, the extension arm 2 and the inter-column support 5 are fixedly connected by the end plate 3, end plate 4 and high-strength bolts 6, and the extension arm 2 is made of H-shaped steel or It is spliced by steel plates, and the support 5 between columns is H-shaped steel. The distribution of high-strength bolts 6 on the end plate can be determined according to the actual situation, and Figure 2 is one of the distribution forms.

Figure 3 is a schematic diagram of the connection structure provided by the prior art. It can be seen from the figure that it is mainly composed of steel columns 1, outriggers 2, inter-column supports 5, high-strength bolts 6, web gussets 7, outer flange gussets 8 and The inner flange gusset plate 9 is composed (see Fig. 5 and Fig. 6). It can be seen from Figures 4 to 6 that the number of connecting plates and high-strength bolts is far more than the number of end plates and high-strength bolts of the utility model when web gusset plates and flange gusset plates are used for connection.

For the utility model, the size of the end plate is determined according to the cross-section size of the inter-column support. For the commonly used H-shaped steel inter-column support with a section of HW100×100～HW300×300, the thickness of the end plate is selected between 20～30mm. The number and type of high-strength bolts are determined according to the force analysis and structural requirements. The number is between 2 and 12, and the type is selected between M16 and M24.

Taking an inter-column support with a section of HW150×150 as an example, in the prior art, based on the principle of equal-strength connection, the web needs 4 M16 high-strength bolts, connected by 2 gusset plates 80mm wide×285mm long×8mm thick , each of the upper and lower flanges needs 8 M16 high-strength bolts, through 2 outer flange gusset plates of 150mm wide x 285mm long x 10mm thick on the outer side of the flange, and 4 pieces of 60mm wide x 285mm long x 10mm thick gusset plates on the inner side of the flange For the connection of the inner flange gusset plate, a total of 20 M16 high-strength bolts and 8 connecting plates with a thickness of 8mm and a total of 0.2m ² are required at one joint, which requires a large amount of construction work and high cost.

After adopting the joint form of the utility model, only 2 pieces of 180mm wide×310mm long×24mm thick end plates and 6 M20 high-strength bolts are needed for connection, and only 6 M20 high-strength bolts are needed at one joint, and 2 pieces of 24mm thick 0.11m ² The gusset plate greatly reduces the construction workload and can effectively improve the construction efficiency.

Although the specific embodiments of the present utility model have been described above, those skilled in the art should understand that these are only examples, and without departing from the principle and essence of the present utility model, the inter-column support and beam connection, column Inter-bracing cross-intersection joints and steel-column bracing of other cross-sectional forms or sizes are also applicable.

Claims (3)

1. A connection device for supporting between steel columns, characterized in that: it is mainly composed of steel columns, extension arms, end plates, inter-column supports and high-strength bolts, one end of the extension arm is welded to the steel column and protrudes obliquely, The other end of the extension arm is welded with an end plate, and the two ends of the inter-column support are welded with end plates, and the end plates are opened with bolt holes. H-shaped steel. 2. The connection device according to claim 1, characterized in that: said extension arm is made of H-shaped steel or spliced by steel plates. 3. The connection device according to claim 1 or 2, characterized in that: the thickness of the end plate is 20-30 mm.