CN205502246U - Outsourcing steel -concrete composite beam - steel -pipe column connected node - Google Patents

Abstract

The utility model discloses an outsourcing steel concrete composite beam-steel pipe column connecting node. The joint includes steel pipe columns, upper and lower through-type partitions, lateral connecting plates, etc.; the upper and lower through-type partitions are arranged transversely on the steel pipe columns; the two ends of the upper through-type Type partitions and lateral connecting plates form a U-shaped device on the side of the column, and the U-shaped device can be made into a form of equal or variable cross-section according to the cross-sectional size of the beam and column; the outsourcing steel beam is directly placed in the U-shaped device and passed through high-strength bolts connect. The beneficial effects of the utility model are: the welding work of the U-shaped integral device can be completed in the factory, and the bottom plate and the side plate of the outsourcing steel beam are connected with the device through high-strength bolts, which greatly reduces the welding workload on site, and is convenient for construction and realization of assembly; The negative bending moment reinforcement is directly welded to the upper through-type partition, which can reduce the weakening of the steel pipe's bearing capacity caused by opening holes in the steel pipe's side wall, and the force transmission is clear.

Description

An outsourcing steel concrete composite beam-steel pipe column connection node

technical field

The utility model relates to the technical field of building structures, and more specifically relates to a novel outsourcing steel-concrete composite beam-steel pipe column connection node aimed at industrialized production of buildings.

Background technique

Existing steel-concrete composite beam-steel tube column joints applied in the field of building structures mainly have the following forms: (1) External reinforced ring type joint: a reinforced ring plate is set outside the steel tube column at the corresponding position of the composite beam bottom plate , the bottom plate of the composite beam is lap-welded with it, and the side plate of the composite beam is directly welded to the steel pipe wall. There are two specific structural forms for the treatment of negative moment reinforcement in the composite beam. One is through opening holes in the steel pipe column wall, and the composite beam The inner negative moment steel bar passes through the hole and runs through the joint area; another structural form disconnects the negative moment steel bar at the joint area, and welds the outer reinforcing ring plate at the position of the negative bending moment steel bar on the steel pipe column wall. Negative moment steel bar is welded with it to realize force transmission. (2) "Parallel" type joints: an external reinforced ring plate is set outside the steel pipe column at the corresponding position of the composite beam bottom plate, the composite beam bottom plate is lap-welded with it, the composite beam side plate is directly welded to the steel pipe wall, and through the A "horse pole" steel plate is set to resist the negative bending moment. One side of this steel plate is welded to the outrigger flange of the U-shaped steel beam, and the other side is welded to the wall of the steel pipe column; A number of sleeves are welded at opposite ends of the composite beam along the length direction to connect the steel bars at the end of the negative moment area. Part of the steel bars with negative moment can pass through the joint area through the holes on the steel pipe column wall at the same time. When all the steel bars with negative moment When connecting through a sleeve, an inner partition is set at the corresponding position on the inner wall of the steel pipe as a stiffening plate.

Among them, the outer reinforced joint needs to weld the reinforcing ring outside the steel pipe column wall, which will produce obvious convex angles indoors, which will affect the appearance. The lap welding of the steel beam bottom plate and the reinforcing ring plate and the weld connection between the side plate and the steel pipe column wall , which increases the workload of on-site welding and the quality of the welds is not suitable for guarantee, which is not conducive to the realization of industrialized production. When the upper reinforced ring plate is canceled and the reinforced outer reinforced ring plate joint is adopted, since the opening of the steel pipe column wall will weaken the steel pipe column to a certain extent, it is necessary to take corresponding reinforcement measures, which not only increases the difficulty of construction but also causes damage to the steel pipe column. increase in the amount of steel. The "shoulder pole" joint has a high bearing capacity, and the force transmission is relatively clear, but there are hidden dangers in the form of the joint when pouring concrete in the joint area. If it is not handled properly, the construction quality will be difficult to guarantee. At the same time, under the action of reciprocating load, the steel plate in the negative bending moment area tends to have a large relative slip with the concrete slab, and the energy dissipation performance is poor. For steel sleeve type inner diaphragm joints, when the negative bending moment steel bars are all connected to the column wall through the steel sleeve, it can prevent the weakening of the steel pipe column wall due to the opening, but the setting of the sleeve increases to a certain extent Construction difficulty and cost.

Utility model content

In view of the above-mentioned joints between the steel-concrete composite beam and the steel pipe column, the openings in the column wall easily weaken the section of the steel pipe column, and the external reinforcement ring plate affects the appearance. The welding of the steel beam, the column wall and the connecting plate makes the welding work on site heavy, and the quality is not suitable. In order to solve such problems, a new type of steel-concrete composite beam-steel tube column joint with simple structure, clear force transmission, convenient construction and industrial production is proposed.

In order to achieve the above-mentioned technical purpose, the utility model adopts the following technical scheme: an outsourcing steel concrete composite beam-steel pipe column connection node, including upper and lower through-type partitions, steel pipe columns and lateral connecting plates, the upper and lower The lower through-type partition is arranged transversely on the steel pipe column, the upper through-type partition is connected with negative moment steel bars, and the lower through-type partition and the lateral connecting plate form a U-shaped integral device on both sides of the steel pipe column, The outsourcing steel beam is placed in a U-shaped overall device, and the upper and lower through-type partitions are provided with pouring holes and ventilation holes.

Further, the cross-section of the steel pipe column is equal to that of the composite girder outer-wrapped steel beam, and the lower through-type partition plate and the lateral connection plate form a U-shaped integral device with equal cross-section on both sides of the steel pipe column.

Further, the difference between the cross-sectional width of the steel pipe column and the steel beam enclosing the composite beam is greater than or equal to 50 mm, and the lower through-type partition and the lateral connection plate form a U-shaped overall device with variable cross-section on both sides of the steel pipe column.

Further, the cross-section of the composite girder outer cladding steel girder is a C shape with the upper flange turned inward or a hat shape with the upper flange turned outward.

Further, the bottom plate and side webs of the composite girder outer cladding steel girder are connected with the bottom plate and side connecting plates of the U-shaped integral device through high-strength bolts.

Further, the upper through-type diaphragm is welded to the negative moment reinforcement.

Further, the steel pipe column is a steel pipe concrete column or an empty steel pipe column.

Further, the outer cladding steel beams and steel pipe columns of the composite beams are made of ordinary steel plates or checkered steel plates.

The technical characteristics and effects of the utility model are:

The lower through-type partition and the lateral connecting plate form an overall U-shaped device on the side of the column. During the on-site construction, the outsourcing steel beam is directly placed in it and used for the connection of the beam and column. The overall welding work can be completed in the factory. The outsourcing steel beam bottom plate and the side The plates are connected with the lateral connecting plates or partitions through high-strength bolts, which greatly reduces the welding workload on site, and facilitates construction and realization of assembly; the negative moment reinforcement is directly welded on the upper through-type partition, which can reduce The weakening of the bearing capacity of the steel pipe caused by holes in the wall, and double rows of steel bars can be welded on the upper and lower sides of the partition as required; through-type partitions are installed at the corresponding connection positions between the corresponding negative moment steel bars and the outer steel beam bottom plate to solve the problem. It solves the problem that the outer reinforcement ring protrudes and causes obvious convex angles inside the room and affects the use of the house. At the same time, it is used for the connection of beams and columns and the transmission of force. The force transmission is clear and the concrete pouring is convenient.

Description of drawings

Fig. 1 is the schematic diagram of the utility model embodiment 1.

Fig. 2 is a schematic diagram of Embodiment 2 of the present utility model.

Fig. 3 is a sectional view of the utility model.

FIG. 4 is a cross-sectional view along line A-A of FIG. 3 .

Fig. 5 is a B-B sectional view of Fig. 3 .

Fig. 6 is a schematic structural view of the upper side through the partition.

FIG. 7 is a schematic structural view of the lower side through partition in FIG. 1 .

FIG. 8 is a schematic diagram of the structure of the lower penetrating partition in FIG. 2 .

Fig. 9 is a schematic diagram of the structure of the node after pouring concrete.

In the figure: 1 is the upper through-type partition, 2 is the lower through-type partition, 3 is the steel pipe column, 4 is the lateral connection plate, 5 is the outsourcing steel beam, 6 is the negative moment steel bar, 7 is the high-strength bolt, 8 It is a tie rod, 9 is a composite beam, 10 is a pouring hole, and 11 is a vent hole.

detailed description

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

Example 1

Please refer to Figures 1-9, the utility model provides a steel-concrete composite beam-steel tube column joint, including upper and lower through-type partitions 1, 2, steel tube columns 3 and lateral connecting plates 4, the upper and lower The through-type partitions 1 and 2 are arranged transversely on the steel pipe column 3, the upper through-type partition 1 is used to connect the negative moment steel bar 6, and the lower through-type partition 2 and the lateral connecting plate 4 form a U-shaped device on the side of the column , the outsourcing steel beam 5 is directly placed in the U-shaped device, and the upper and lower through-type partitions 1, 2 are provided with pouring holes 10 and ventilation holes 11.

The upper and lower through-type partitions 1 and 2 are connected to the column wall of the steel pipe column 3 by welding; the upper partition 1 is located at the negative moment steel bar 6 on the top of the plate to support and weld the negative moment steel bar 6, The lower through-type partition 2 is located at the position corresponding to the bottom plate of the outsourcing steel beam 5, one end of the lateral connection plate 4 is connected to the outer wall of the steel pipe column 3 by welding, and the other end is welded to the lower through-type partition 2 to form a U shape The overall device is used to support and connect the outsourcing steel beam 5 during on-site construction; the shapes of the upper and lower through-type partitions 1 and 2 are determined according to the beam-column connection direction and the cross-sectional size of the beam-column, and extend a certain distance in the direction of the beam-column connection for Connection, the width in other directions only meets the construction requirements.

The outsourcing steel girder 5 of the composite beam is a C-shape with the upper flange turned inward or a hat shape with the upper flange turned out, and is directly placed in the U-shaped overall device. The bottom plate 2 and the side plate 4 are connected by high-strength bolts 7 .

The upper and lower through-type partitions 1, 2 are welded to the column wall of the steel pipe column 3, the lateral connection plate 4 is welded to the outer wall of the steel pipe column 3, and the lateral connection plate 4 is connected to the lower through Type separator 2 welded connection.

The steel pipe column 3 is a steel pipe concrete column or an empty steel pipe column.

The schematic diagram of the node structure after pouring concrete is shown in Figure 9.

Example 2

Or when the cross-sectional width of the steel pipe column 3 is greater than 50 mm or more than the cross-sectional width of the outer steel beam 5 of the composite beam, the lower through-type partition plate 2 and the lateral connecting plate 4 form a variable-section U-shaped integral device on the column side, and the rest of the structure With embodiment 1.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (8)

1. steel-enclosed concrete members combination beam-steel pipe column connected node, it is characterized in that: include, under through dividing plate (1, 2), steel pipe column (3) and laterally attached plate (4), on described, under through dividing plate (1, 2) extend transversely through and be arranged on steel pipe column (3), negative reinforcement (6) is connected on described through dividing plate (1), under described, through dividing plate (2) and laterally attached plate (4) form U-shaped single unit system (12) in steel pipe column (3) both sides, described beams encased in steel hoops (5) is positioned in U-shaped single unit system (12), on described, under through dividing plate (1, 2) pouring hole (10) and air-vent (11) it are both provided with on.

A kind of steel-enclosed concrete members combination beam-steel pipe column connected node the most according to claim 1, it is characterized in that: described steel pipe column (3) is wide with combination beam beams encased in steel hoops (5) cross section, described under through dividing plate (2) and laterally attached plate (4) form uiform section U-shaped single unit system (12) in steel pipe column (3) both sides.

A kind of steel-enclosed concrete members combination beam-steel pipe column connected node the most according to claim 1, it is characterized in that: the difference of described steel pipe column (3) cross-sectional width and combination beam beams encased in steel hoops (5) cross-sectional width more than or equal to 50mm, described under through dividing plate (2) and laterally attached plate (4) in steel pipe column (3) both sides formation variable cross-section U-shaped single unit system (13).

A kind of steel-enclosed concrete members combination beam-steel pipe column connected node the most according to claim 1, it is characterised in that: the C-shaped that cross section is top flange varus of described combination beam beams encased in steel hoops (5) or the hat turned up in top flange.

5. according to a kind of steel-enclosed concrete members combination beam-steel pipe column connected node described in claim 1 or 4, it is characterised in that: it is connected by high-strength bolt (7) between base plate and coxostermum with the base plate of U-shaped single unit system and the laterally attached plate (4) of described combination beam beams encased in steel hoops (5).

A kind of steel-enclosed concrete members combination beam-steel pipe column connected node the most according to claim 1, it is characterised in that: described through dividing plate (1) is upper to be welded to connect with negative reinforcement (6).

A kind of steel-enclosed concrete members combination beam-steel pipe column connected node the most according to claim 1, it is characterised in that: described steel pipe column (3) is steel core concrete column or empty steel pipe column.

A kind of steel-enclosed concrete members combination beam-steel pipe column connected node the most according to claim 1, it is characterised in that: the beams encased in steel hoops of described combination beam and the material of steel pipe column are general steel plate or checkered steel plate.