CN203878779U - Rectangular concrete-filled steel tube column and I-steel beam rebar penetrating type joint - Google Patents

Abstract

The utility model discloses a rectangular steel pipe concrete column and an I-steel girder piercing bar joint, comprising a rectangular steel tube concrete column, an I-steel beam, a bar-piercing high-strength bolt and a force transmission member; the bar-piercing high-strength Bolts run through the entire rectangular steel pipe concrete column and protrude from the concrete column surface at both ends, and nuts are respectively used to pass through the I-shaped steel connector of the force transmission member and the connection part of the L-shaped vertical connecting plate to the two ends of the concrete column. On the side wall; the upper and lower wings of one side of the I-shaped steel connector are pre-embedded in the concrete column, and the upper and lower wings of the other side protrude from the outer surface of the concrete column and are connected by high-strength friction bolts and the I-shaped The upper and lower wings of the steel beam are fixedly connected; the belly of the I-shaped steel beam is fixedly connected with the protruding part of the L-shaped vertical connecting plate through high-strength friction bolts. The utility model has no welding points, is convenient for installation and maintenance, and the force of the whole node is balanced, stable and firm.

Description

A Reinforced Joint Between Rectangular Steel Tube Concrete Column and I-Steel Beam

technical field

The utility model relates to a concrete column and a steel beam piercing joint, in particular to a rectangular steel pipe concrete column and an I-shaped steel beam piercing joint, which belongs to the field of structural engineering.

Background technique

With the development of the construction industry, the theoretical research on steel-concrete composite structures is becoming more and more perfect, and there are more and more projects applying composite structures at this stage. Currently representative and more advanced technologies mainly include:

Chinese patent application 201320277316.6 discloses a rectangular concrete-filled steel tube column and a box-shaped steel girder piercing joint structure, which is pre-welded on the end face of the box-shaped steel beam to connect steel plates, and the width of the connected steel plate is not greater than that of the rectangular steel tube concrete column. The width of the connecting surface, and the surrounding of the connecting steel plate protrudes beyond the end face of the box-shaped steel girder. There are several holes around the protruding part of the connecting steel plate. The design position of the column.

Chinese patent application 201320276190.0 discloses a semi-rigid joint structure between a rectangular steel tube concrete column and a steel beam, which is provided with T-shaped steel connectors at the upper and lower positions of the I-beam of the rectangular steel tube concrete column, and through the reinforcement-type high-strength Bolts are fixed on the rectangular steel pipe concrete column, the end of the I-steel beam is placed between two T-shaped steel connectors, and the upper and lower flanges of the I-steel beam are connected to the upper and lower two T-shaped steel beams by high-strength frictional bolts. Steel connectors are held together.

Chinese patent application 201320642803.8 discloses a channel-shaped steel-connected rectangular steel pipe concrete column and a steel beam piercing joint, which directly welds the channel steel to the wall of the rectangular steel pipe concrete column by means of fillet welds. Holes are reserved at the corresponding parts of the web; the upper and lower flanges of the steel beam and the upper and lower flanges of the channel steel are connected by high-strength friction bolts or welding; the rectangular steel tube concrete column is connected with the channel steel by high-strength bolts into one.

However, the above-mentioned various nodes are more or less fixedly connected by welding. On the one hand, there is unavoidable stress caused by welding, which will affect the overall safety of the entire node structure; on the other hand, this form of welded connection will inevitably lead to the disassembly of each welded part in the later node maintenance process. It can be dismantled and replaced by destructive dismantling methods, and the dismantling and replacement process is very cumbersome and inconvenient.

Utility model content

The purpose of the utility model is to provide a rectangular steel pipe concrete column and an I-steel beam piercing joint without welding stress and convenient for installation and maintenance.

The technical problem that the utility model needs to solve in order to achieve the above purpose is how to change all the connection forms of the components of the node into detachable connection forms on the basis of retaining the stability, firmness and seismic performance of the nodes.

The technical solution adopted by the utility model for solving the problems of the technologies described above is:

A rectangular concrete-filled steel pipe column and steel beam piercing joint, including a rectangular steel pipe concrete column, an I-shaped steel beam, and a steel-piercing high-strength bolt; it is characterized in that it also includes a force-transmitting member;

The force transmission member includes an I-shaped steel connector, a high-strength bolt through the reinforcement and an L-shaped vertical connecting plate;

The steel-piercing high-strength bolt runs through the entire rectangular concrete-filled steel pipe column, and its two ends protrude from the wall surface of the rectangular steel pipe concrete column;

The two ends of the bar-piercing high-strength bolts respectively adopt nuts to pass through in turn and fix the connecting parts of the I-shaped steel connector and the L-shaped vertical connecting plate on the two side walls of the rectangular steel pipe concrete column;

The upper and lower wings of one side of the I-shaped steel connector are respectively pre-buried in the rectangular concrete-filled steel pipe column, and the upper and lower wings of the other side protrude from the outer surface of the rectangular steel pipe concrete column and pass through the high Strength friction bolts are fixedly connected to the upper and lower wings of the I-beam;

The belly of the I-shaped steel beam is fixedly connected to the protruding part of the L-shaped vertical connecting plate through high-strength friction bolts.

The technical effect directly brought by the above-mentioned technical scheme is that all components of the rectangular concrete-filled steel tube column and the steel beam piercing joint are fixedly connected in a detachable manner, so that there is no welding point in the entire joint, thus effectively avoiding the occurrence of welding accidents. Cause local stress to remain and then affect the overall use safety of the entire node structure;

Moreover, all are fixedly connected in a detachable manner, which is convenient for later maintenance, repair and replacement of each component;

In addition, since the upper and lower wings on one side of the I-shaped steel connector are respectively pre-embedded in the rectangular steel tube concrete column, the foundation of the I-shaped steel connector is stable; and, because the wing of the I-shaped steel connector Part of it will be inserted between the steel pipe columns of the rectangular steel pipe concrete column. The support of the steel pipe column further balances the force on the insertion end of the I-steel connector and effectively prevents the I-steel connector from inserting at the position of the wing and the web. Shear deformation. That is, the force of the whole node is more balanced, more stable and firmer.

Preferably, the length of the upper and lower wings of the above-mentioned I-shaped steel connector is one-third to one-half of the width of the rectangular steel pipe concrete column.

The technical effect directly brought by this optimal technical solution is that the stability and firmness of the entire node structure can be further increased.

Further preferably, the above-mentioned L-shaped vertical connecting plate is an angle steel.

The direct technical effect of this preferred technical solution is that the use of standard parts can further reduce the production cost and fully meet the interchangeability requirements.

Further preferably, there are two nuts at both ends of the high-strength bolt with ribs.

The technical effect directly brought about by this optimal technical solution is that the two ends of the high-strength bolt through the rib are respectively fastened with double nuts, which is beneficial to prevent loosening or slipping of the nuts due to vibration and other reasons.

To sum up, compared with the prior art, the rectangular concrete-filled steel tube column and steel beam piercing joint of the utility model has the following beneficial effects:

1. It is completely connected in a detachable way, which is convenient for installation and maintenance;

2. There is no welding stress, and the force of the whole node is more balanced, more stable and firmer.

Description of drawings

Fig. 1 is the front facade structure schematic diagram of the utility model node;

Fig. 2 is a top view structural schematic diagram of the node of the utility model (wherein, the I-beam steel beam is in a horizontal state).

Detailed ways

The utility model is described in detail now in conjunction with accompanying drawing.

As shown in Fig. 1 and Fig. 2, the rectangular concrete-filled steel tube column and the steel beam piercing reinforcement type node of the present utility model include a rectangular steel pipe concrete column 1, an I-shaped steel beam 2, and a reinforcement-piercing high-strength bolt 4; it also includes There is a force transmission member; the force transmission member includes an I-shaped steel connector 3, a high-strength friction bolt 7 and an L-shaped vertical connection plate;

The above-mentioned high-strength bolt 4 piercing through the reinforcement runs through the entire rectangular steel pipe concrete column 1, and its two ends protrude from the wall surface of the rectangular steel pipe concrete column 1;

Both ends of the above-mentioned bar-piercing high-strength bolt 4 are respectively passed through by nuts in turn, and the connection parts of the I-shaped steel connector 3 and the L-shaped vertical connecting plate 6 are fixed on the two side walls of the rectangular steel tube concrete column 1;

The upper and lower wings of one side of the above-mentioned I-shaped steel connector 3 are respectively pre-buried in the rectangular concrete-filled steel tube column 1, and the upper and lower wings of the other side protrude from the outer surface of the rectangular steel tube concrete column 1 and are rubbed by high-strength friction. Type bolt 7 is fixedly connected with the upper and lower wings of I-beam steel girder 2;

The abdomen of the above-mentioned I-shaped steel beam 2 forms a fixed connection with the protruding part of the L-shaped vertical connecting plate 6 through high-strength friction bolts 7 .

Experiments have proved that the length of the upper and lower wings of the above-mentioned I-shaped steel connector 3 is one-third to one-half of the width of the rectangular steel pipe concrete column 1, and the firmness is the best.

Considering the further reduction of processing and manufacturing costs, the above-mentioned L-shaped vertical connecting plate 6 can be made of angle steel.

The number of nuts at both ends of the above-mentioned bar-piercing high-strength bolt 4 is two. This is mainly to prevent the nut from loosening or slipping due to vibration.

It should be noted that, 1. The concrete of the steel pipe concrete column involved in the present invention can be ordinary concrete, high-strength concrete or self-compacting concrete. 2. For the L-shaped vertical connecting plate described in the present invention, the connecting part refers to the part parallel to the rectangular concrete-filled steel tube column, and the protruding part refers to the part perpendicular to the rectangular concrete-filled steel tube column.

Claims (4)

1. rectangular steel-tube concrete column and a girder steel through ribbed node, comprise rectangular steel-tube concrete column, i iron girder steel, through ribbed high-strength bolt; It is characterized in that, also include Force transmission parts;

Described Force transmission parts comprises I-steel connector, through ribbed high-strength bolt and L shaped vertical junction plate;

Described through ribbed high-strength bolt runs through whole rectangular steel-tube concrete column, and the wall of rectangular steel-tube concrete column is stretched out respectively at its two ends;

The two ends of described through ribbed high-strength bolt adopt respectively nut pass successively and the connecting portion of I-steel connector, L shaped vertical junction plate be fixed in the two side walls of described rectangular steel-tube concrete column;

The upper and lower alar part of described I-steel connector one side is embedded in respectively in described rectangular steel-tube concrete column, and the upper and lower alar part of opposite side stretches out the external surface of described rectangular steel-tube concrete column and is fixedly connected with the alar part up and down of described i iron girder steel by high strength friction-type bolt;

The belly of described i iron girder steel forms a fixed connection by the extension of high strength friction-type bolt and described L shaped vertical junction plate.

2. rectangular steel-tube concrete column according to claim 1 and girder steel through ribbed node, is characterized in that, the upper and lower alar part length of described I-steel connector is 1/3rd to 1/2nd of described rectangular steel-tube concrete column width.

3. rectangular steel-tube concrete column according to claim 1 and girder steel through ribbed node, is characterized in that, described L shaped vertical junction plate is angle steel.

4. rectangular steel-tube concrete column according to claim 1 and girder steel through ribbed node, is characterized in that, the nut quantity at described through ribbed high-strength bolt two ends is two.