CN209907571U - Connection node of assembled frame construction beam column - Google Patents

Abstract

The utility model discloses a beam-column connection node of a prefabricated frame structure, comprising a prefabricated column and a prefabricated beam. The connecting surfaces on the left and right sides of the prefabricated column are provided with corbel pillars, and an upward opening is formed between the corbel pillar and the connecting surface of the prefabricated column. The connecting end of the prefabricated beam has an integrally formed downward clip; the connecting end of the prefabricated beam is placed on the corbel column, and the connecting end of the prefabricated beam is buckled in the slot; it also includes a pressure-bearing steel plate, High-strength connecting piece, the high-strength connecting piece runs through the prefabricated column, the buckle and the corbel column, and sets the pressure-bearing steel plate at the outer end to connect the three into one. There is a shock absorption mechanism. The utility model has sufficient deformation capacity when meeting the normal use requirements, so that the damper can fully play the role of energy dissipation when an earthquake occurs, and at the same time, the node should not be damaged due to large deformation, and has the function of easy repair after the earthquake; the comprehensive strength is high. , good integrity and strong practicability.

Description

A connection node of beam-column of prefabricated frame structure

Technical field:

The utility model relates to the field of structural engineering, in particular to a connecting node of a beam-column of an assembled frame structure.

Background technique:

With the development goal of building industrialization proposed by the country in the 13th Five-Year Plan, the development of prefabricated technology is getting better and better, and its application is becoming more and more extensive. Compared with cast-in-place concrete structures, it can save construction time and installation. More convenient and more flexible.

In the prefabricated frame structure, the beam-column joint connects the prefabricated beam-column into a whole, and the connection node plays the role of load transmission and seismic energy dissipation. The connection part of the force-bearing member occupies a pivotal position in the prefabricated frame structure. Fabricated concrete joints can improve the overall stability of the structure.

At present, the connection method of beam-column of prefabricated frame structure in my country mainly adopts the overall cast-in-place method. This method has low construction efficiency and large volume restriction; it is not easy to install and replace components; beam-column joints are prone to brittle failure under load. The joint deformation capacity is insufficient and the durability is low; the quality of the cast-in-place joint is difficult to guarantee; the later maintenance is difficult; it is not conducive to saving materials and has poor installation flexibility.

Utility model content:

In order to make up for the problems of the prior art, the purpose of this utility model is to provide a beam-column connection node of a prefabricated frame structure, which can improve the connection strength and deformation ability of the beam-column node, and make the beam-column have good integrity and cooperation. , and the assembly process of the node is simple, and the construction is convenient and fast.

The technical scheme of the present utility model is as follows:

The connection node of the beam-column of the prefabricated frame structure includes prefabricated columns and prefabricated beams. It is characterized in that the connecting surfaces on the left and right sides of the prefabricated columns are provided with integrally formed corbel pillars, and between the corbel pillars and the prefabricated column connection surfaces form a card slot that opens upward,

The connecting end of the prefabricated beam has an integrally formed, downward snap;

The connecting end of the prefabricated beam is placed on the corbel column, and the connecting end of the prefabricated beam is buckled in the slot;

It also includes a pressure-bearing steel plate and a high-strength connecting piece. The high-strength connecting piece runs through the prefabricated column, the buckle and the corbel column, and sets the pressure-bearing steel plate at the outer end to connect the three into one;

A damping mechanism is connected between the connecting surfaces on the left and right sides of the prefabricated column and the upper end surface of the prefabricated beam respectively.

The connection node of the beam-column of the prefabricated frame structure is characterized in that the prefabricated column, the corbel pillar and the prefabricated beam connection end buckle are respectively provided with a column prefabricated hole and a corbel prefabricated hole penetrating along the left and right directions. Holes, beam prefabricated holes.

The beam-column connection node of the prefabricated frame structure is characterized in that the column prefabricated holes and the beam prefabricated holes each include two rows, and the two rows of column prefabricated holes are respectively distributed at longitudinal intervals close to the front and rear sides of the prefabricated column connection surface; The beam prefabricated holes correspond to the column prefabricated holes one-to-one; the corbel prefabricated holes correspond to the bottom two holes of the two rows of column prefabricated holes.

The connection node of the beam-column of the prefabricated frame structure is characterized in that the width of the clip matches the width of the clip slot in the front and rear directions, the clip width is greater than the width of the prefabricated beam, and the downward extension length of the clip is the same as that of the corbel column. The depth of the card slot is matched, and the thickness of the buckle in the left and right directions matches the width of the card slot.

The connecting node of the beam-column of the assembled frame structure is characterized in that the high-strength connecting piece comprises a high-strength stud and a high-strength nut matched with the high-strength stud.

The connection node of the beam-column of the assembled frame structure is characterized in that a spring washer is also sleeved between the high-strength screw nut of the high-strength connecting piece and the pressure-bearing steel plate.

The connection node of the beam-column of the prefabricated frame structure is characterized in that there are two groups of the pressure-bearing steel plates, which are respectively placed on the connecting surfaces of each side of the prefabricated column. A corbel bearing steel plate is formed, two beam bearing steel plates and a corbel bearing steel plate are arranged in a U shape with an upward opening.

The connection node of the beam-column of the prefabricated frame structure is characterized in that the damping mechanism comprises two prefabricated curved steel plates, the two prefabricated curved steel plates are staggered in position and the opposite surfaces pass through vulcanized elastic rubber The two prefabricated arc-shaped steel plates and the elastic rubber sheet are connected with bolt connectors horizontally through the connecting parts. The two prefabricated arc-shaped steel plates are respectively provided with connecting steel plates at both ends, and the two connecting steel plates are respectively connected with the prefabricated column connection surface and the prefabricated beam. Connection on the top face.

The advantages of the utility model are:

1. The structural design of the utility model is reasonable, and high-strength and high-performance materials are used to make the beam-column joints of the prefabricated frame structure have sufficient deformation capacity when meeting the normal use requirements, so that the dampers can fully exert their energy-dissipating effect when an earthquake occurs, and the joints should not be used. The damage is caused by the large deformation, and it has the function of easy repair after the earthquake;

2. The connection node structure of the utility model and the reasonable connection structure make the connection node have the advantages of high comprehensive strength, good integrity, good seismic performance and strong practicability during use.

Description of drawings:

Figure 1 is a schematic structural diagram of the utility model.

FIG. 2 is a schematic structural diagram of a prefabricated column of the present invention.

3 is a schematic structural diagram of a prefabricated beam of the present invention.

FIG. 4 is a front view of the utility model in FIG. 1 without a shock absorbing mechanism installed.

Fig. 5 is a left side view of the utility model in Fig. 1 without a shock absorbing mechanism installed.

FIG. 6 is a top view of the utility model without a shock absorbing mechanism installed.

FIG. 7 is a schematic structural diagram of the damping mechanism of the present invention.

Figure 8 is a right side view of the damping mechanism of the present invention.

Detailed ways:

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

The connection node of the beam-column of the prefabricated frame structure includes a prefabricated column 1 and a prefabricated beam 2. The connecting surfaces on the left and right sides of the prefabricated column 1 have integrally formed corbel pillars 3, and the connection surface between the corbel pillar 3 and the prefabricated column 1 is formed. Card slot 4 that opens upwards,

The connecting end of the prefabricated beam 2 has an integrally formed downward clip 5;

The connecting end of the prefabricated beam 2 is placed on the corbel column 3, and the connecting end of the prefabricated beam 2 is buckled in the slot 4;

It also includes a pressure-bearing steel plate and a high-strength connecting piece. The high-strength connecting piece runs through the prefabricated column 1, the buckle 5, and the corbel support 3, and sets the pressure-bearing steel plate at the outer end to connect the three, which effectively improves the deformation of the joint. Capacity, durability and flexibility; the connection surfaces on the left and right sides of the prefabricated column and the upper end surface of the prefabricated beam are respectively connected with a shock-absorbing mechanism 14, which is a node connecting piece for the beam-column to play the role of shock absorption and energy dissipation, successfully avoiding the negative impact. Place where the bending moment is greatest.

Prefabricated column 1 is made of C80 high-strength concrete, and prefabricated beam 2 is made of C40 concrete. Both longitudinal bars and stirrups are made of HRB500 grade four steel bars, making full use of high-strength materials to form high-performance connection nodes. The prefabricated beams and columns are all prefabricated in the factory. Assemble directly on site.

The prefabricated column 1, the corbel support 3, and the prefabricated beam 2 are respectively provided with prefabricated column holes 6, prefabricated holes 7 of the corbel, and prefabricated holes 8 of the beams penetrating along the left and right directions on the connecting end buckles.

The column prefabricated holes 6 and the beam prefabricated holes 8 both include two rows, and the two rows of column prefabricated holes 7 are respectively distributed longitudinally at intervals close to the front and rear sides of the prefabricated column connection surface; the beam prefabricated holes 8 correspond to the column prefabricated holes 6 one-to-one; the corbel prefabricated holes 7 Corresponding to the position of the bottom two holes of the two rows of prefabricated holes 6, the size and position should be accurate to ensure fast and efficient installation.

The width of the clip 5 matches the width of the slot 4 in the front and rear directions, the width of the clip 5 is greater than the width of the prefabricated beam, the downward extension length of the clip 5 matches the depth of the clip slot of the corbel support 3, and the thickness of the clip 5 in the left and right direction is the same as that of the clip slot. 4 width matching.

The high-strength connectors include high-strength studs 9 and high-strength nuts 10 matched with the high-strength studs 9. The screws are 8.8-grade high-strength screws with a diameter of 30mm, five on each side, corresponding to the prefabricated holes 8 in each row of beams. Symmetrical arrangement.

A spring washer 11 is also sheathed between the high-strength nut of the high-strength connector and the pressure-bearing steel plate.

There are two groups of pressure-bearing steel plates, which are placed on each side of the prefabricated column. The leg bearing steel plates 13 are arranged in a U-shape with an upward opening, which ensures the stability and shock resistance of the overall structure and makes the overall structure more complete.

The damping mechanism 14 includes two prefabricated arc-shaped steel plates 14-1, the two prefabricated arc-shaped steel plates 14-1 are staggered in position and the opposite surfaces are connected into one by a vulcanized elastic rubber sheet 14-2, and the two prefabricated arc-shaped steel plates 14-1 are The connecting part of the steel plate 14-1 and the elastic rubber sheet 14-2 is transversely penetrated by a bolt connecting piece 14-3, which can be the high-strength nut 10 matched with the high-strength connecting piece, that is, the high-strength stud 9, and two prefabricated arc-shaped steel plates. The two ends of 14-1 are respectively provided with connecting steel plates 14-4, and the two connecting steel plates 14-4 are respectively connected with the connecting surface of the prefabricated column 1 and the upper end surface of the prefabricated beam 2.

The two connecting steel plates 14-4 connecting the left and right damping mechanisms 14 to the prefabricated columns can be formed by opening through holes (which can be called beam prefabricated holes) on the prefabricated beams, and installing high-strength connectors, namely high-strength bolts, through the prefabricated beams. The high-strength nut 10 matched with the column 9 ; the left and right two connecting steel plates 14 - 4 connected with the upper end surface of the prefabricated beam 2 are fixed by the high-strength stud 9 .

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. Equivalent replacement or modification of the new technical solution and its utility model concept shall be included within the protection scope of the present utility model.

Claims (8)

1. A connecting node of an assembled frame structure beam column comprises a prefabricated column and a prefabricated beam, and is characterized in that bracket supporting columns which are integrally formed are arranged on connecting surfaces of the left side and the right side of the prefabricated column, a clamping groove which is opened upwards is formed between the bracket supporting columns and the connecting surfaces of the prefabricated column,

the connecting end of the precast beam is provided with an integrally formed downward buckle;

the connecting end of the precast beam is lapped on the bracket strut, and the connecting end of the precast beam is buckled in the clamping groove;

the high-strength connecting piece penetrates through the prefabricated column, the buckle and the bracket support and is sleeved with the pressure-bearing steel plate at the outer end to connect the prefabricated column, the buckle and the bracket support into a whole;

and damping mechanisms are connected between the connecting surfaces on the left side and the right side of the prefabricated column and the upper end surface of the prefabricated beam respectively.

2. The connecting joint of assembled frame structure beam-column of claim 1, wherein the prefabricated column, bracket-column and prefabricated beam connecting end fastener are respectively provided with a column prefabricated hole, a bracket prefabricated hole and a beam prefabricated hole which penetrate along the left-right direction.

3. The connecting node of assembled frame structure beam-column of claim 2, characterized in that, the column prefabricated holes and the beam prefabricated holes comprise two rows, and the two rows of column prefabricated holes are respectively distributed near the front and back sides of the prefabricated column connecting surface at intervals longitudinally; the beam prefabricated holes correspond to the column prefabricated holes one by one; the bracket prefabricated holes correspond to two holes at the lowest part of the two rows of column prefabricated holes.

4. The assembly type frame structure beam-column connecting joint according to claim 1, 2 or 3, wherein the width of the buckle is matched with the width of the clamping groove in the front-back direction, the width of the buckle is larger than that of the precast beam, the downward extending length of the buckle is matched with the depth of the clamping groove of the bracket support, and the thickness of the buckle in the left-right direction is matched with the width of the clamping groove.

5. The fabricated frame structure beam-column connection node of claim 1, wherein said high-strength connection member comprises a high-strength stud and a high-strength nut engaged with said high-strength stud.

6. The connection node of assembled frame structure beam-column according to claim 1 or 5, characterized in that a spring washer is further sleeved between the high-strength screw nut of the high-strength connection member and the pressure-bearing steel plate.

7. A joint of assembled frame structural beam column according to claim 1, wherein there are two sets of the bearing steel plates respectively disposed at each side joint face of the prefabricated column, each set of the bearing steel plates is composed of two beam bearing steel plates and one corbel bearing steel plate, and the two beam bearing steel plates and the one corbel bearing steel plate are arranged in a U shape opened upward.

8. The joint of an assembled frame structure beam column of claim 1, wherein the damping mechanism comprises two prefabricated arc-shaped steel plates, the two prefabricated arc-shaped steel plates are staggered and connected into a whole through vulcanized elastic rubber sheets between opposite surfaces, the connecting parts of the two prefabricated arc-shaped steel plates and the elastic rubber sheets are fixed through transverse through bolt connecting pieces, connecting steel plates are respectively arranged at two ends of the two prefabricated arc-shaped steel plates, and the two connecting steel plates are respectively connected with the connecting surface of the prefabricated column and the upper end surface of the prefabricated beam.

Images