CN201891174U

CN201891174U - Stiff connecting node for ring girder and ring-shaped bracket column

Info

Publication number: CN201891174U
Application number: CN2010206386900U
Authority: CN
Inventors: 高洁; 董福国; 丁永平; 王新友; 董曦
Original assignee: BEIJING JIANGONG GROUP Co Ltd
Current assignee: BEIJING JIANGONG GROUP Co Ltd; Beijing Construction Engineering Group Co Ltd
Priority date: 2010-12-02
Filing date: 2010-12-02
Publication date: 2011-07-06
Anticipated expiration: 2020-12-02

Abstract

The utility model relates to a stiff connecting node for a ring girder and a ring-shaped bracket column. The stiff connecting node comprises a bracket steel structure connected between a steel rib column and a frame girder, wherein the bracket steel structure is ring-shaped and comprises an upper ring plate, a lower ring plate and radial vertical rib plates; the upper ring plate and the lower ring plate encircle the periphery of an outer steeling rib, pouring holes are uniformly formed on the upper ring plate and the lower ring plate, and the vertical rib plates are arranged between the upper ring plate and the lower ring plate and radially connected at intervals; the bracket steel structure is connected with a reinforced concrete ring girder at the periphery into a whole; the longitudinal section of the reinforced concrete ring girder is inversely L-shaped; a reinforcement skeleton is formed by ring-shaped main reinforcements and hoop reinforcements; the upper part of the reinforcement skeleton is lapped on the top surface of the bracket steel structure; and the lower part of the reinforcement skeleton surrounds the side surface of the bracket steel structure. The stiff connecting node solves the technical problem in connecting nodes where a plurality of frame girders are radially connected with the side surface of the column, solves the problems of the converging of a plurality of concrete girders, reinforcement concentration and unsubstantial carrying capacity, and can be extensively applied to the connection and construction of nodes where a plurality of frame girders are radially connected with the side surface of the column.

Description

Ring beam, annular bracket post stiffness connected node

Technical field

The utility model relates to a kind of beam column stiffness connected node, particularly a kind of stiffness connected node that adopts ring beam, annular reinforcing bar to combine.

Background technology

In the construction of stiffness bean column node, often adopt radial bracket setting, be that bracket one end is connected with post, the other end is connected with beam, but more for the beam that needs around the post to connect, beam itself is not the situation of straight beam, from the structure angle, if adopt the reinforcement ratio comparatively dense at traditional short bracket form node place, stressed possibility is because the too much drawknot of bracket forms stressed weak area easily, the easy fragility of node is strengthened, and anti-seismic performance is relatively poor; From the building angle, see owing to stretch out than multi-branched from profile from post, influence the attractive in appearance of building itself; From the construction angle, construction cost is higher, in the work progress template install very complicatedly, be difficult to guarantee the precision of construction.Therefore, seek a kind of both attractive in appearancely, structural performance is good again, and the joint form of easy construction becomes the problem of project planner's research.

The utility model content

The purpose of this utility model provides a kind of ring beam, annular bracket post stiffness connected node, solve many Vierendeel girders and be the technical problem that the radial node that is connected the post side connects; And solution multiple tracks concrete beam converges, reinforcing bar is intensive and the problem of stressed weakness.

For achieving the above object, the utility model adopts following technical scheme:

A kind of ring beam, annular bracket post stiffness connected node, comprise the bracket steel structure that is connected between reinforced concrete column and the Vierendeel girder, described reinforced concrete column is made up of outsourcing reinforcing bar and interior core concrete, described Vierendeel girder is a reinforced concrete beam, described bracket steel structure is an annular, it is peripheral and evenly have a upper ring plate of pouring hole by being looped around the outsourcing reinforcing bar, lower ring plate combines with the vertical floor that radiation between the two is connected at interval, described bracket steel structure fuses with the reinforced concrete circle beam of periphery, the longitudinal section of described reinforced concrete circle beam is an inverted L shape, form cage of reinforcement by main muscle of annular and stirrup, the top of cage of reinforcement rides over the end face of bracket steel structure, the lower peripheral of cage of reinforcement is around the side of bracket steel structure, the muscle of being advocated of described Vierendeel girder has at least 1/3rd to pass reinforced concrete column, all the other interrupt or bend towards in the reinforced concrete circle beam, and described reinforced concrete circle beam and Vierendeel girder are cast as one.

The external surface of the outsourcing reinforcing bar that described reinforced concrete column is corresponding with reinforced concrete circle beam is welded with peg.

Be welded with ribs on described upper ring plate and the lower ring plate.

Compared with prior art the utlity model has following characteristics and beneficial effect:

At first, the utility model adopts and the conventional different annular bracket setting of the bracket of encorbelmenting, and has realized the circular arc architectural image, saves reinforcing bar, rolled steel dosage with respect to the rectangle bean column node simultaneously.

Secondly, the utility model adopts being connected of annular reinforcing bar and reinforced concrete circle beam, has solved that several roads of bean column node concrete beam converges, reinforcing bar is intensive and the problem of stressed weakness, guarantees stressed needs of node and easy construction.

Moreover, the stiffness node that is connected to form of annular reinforcing bar described in the utility model and reinforced concrete circle beam satisfies the requirement of transfer beams end shear and moment of flexure, plastic hinge is at the framework beam-ends, and node table reveals good ductility, reaches the seismic design purpose of " strong column and weak beam " easily.

The utility model can be widely used in many Vierendeel girders and be radial node and the construction thereof that is connected the post side.

Description of drawings

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

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the A-A sectional view of Fig. 1.

Fig. 3 is the B-B sectional view of Fig. 1.

Fig. 4 is the C-C sectional view of Fig. 1.

Fig. 5 is the D-D sectional view of Fig. 4.

Reference numeral: 1-reinforced concrete column, 2-reinforced concrete circle beam, 3-upper ring plate, 4-lower ring plate, 5-ribs, the vertical floor of 6-, 7-pouring hole, 8-peg, 9-Vierendeel girder, the 10-core concrete in the main muscle of muscle, 11-annular, 12-stirrup, 13-outsourcing reinforcing bar, the 14-of being advocated.

The specific embodiment

Embodiment is referring to Fig. 1～shown in Figure 5, a kind of ring beam, annular bracket post stiffness connected node, comprise the bracket steel structure that is connected between reinforced concrete column 1 and the Vierendeel girder 9, described reinforced concrete column 1 is made up of outsourcing reinforcing bar 13 and interior core concrete 14, described Vierendeel girder 9 is a reinforced concrete beam, described bracket steel structure is an annular, it is peripheral and evenly have a upper ring plate 3 of pouring hole 7 by being looped around outsourcing reinforcing bar 13, lower ring plate 4 combines with the vertical floor 6 that radiation between the two is connected at interval, described bracket steel structure fuses with the reinforced concrete circle beam 2 of periphery, the longitudinal section of described reinforced concrete circle beam 2 is an inverted L shape, form cage of reinforcement by main muscle 11 of annular and stirrup 12, the top of cage of reinforcement rides over the end face of bracket steel structure, the lower peripheral of cage of reinforcement is around the side of bracket steel structure, the muscle 10 of being advocated of described Vierendeel girder 9 has at least 1/3rd to pass reinforced concrete column 1, all the other interrupt or bend towards in the reinforced concrete circle beam 2, and described reinforced concrete circle beam 2 is cast as one with Vierendeel girder 9.

The external surface of the outsourcing reinforcing bar 13 that described reinforced concrete column 1 and reinforced concrete circle beam 2 are corresponding is welded with peg 8.

Be welded with ribs 5 on described upper ring plate 3 and the lower ring plate 4.

The job practices of described ring beam, annular bracket post stiffness connected node, step is as follows:

Step 1, installation reinforced concrete column 1;

Step 2, set up the internal frame that is used to install reinforced concrete circle beam 2 templates, and the design attitude cuff bracket steel structure of bean column node around steel pipe column successively from bottom to top;

Step 3, set up the integrated support frame around the bracket steel structure, and with reinforced concrete column and internal frame drawknot;

Step 4, spelling is installed the bed die of reinforced concrete circle beam 2 on the integrated support frame;

The annular main muscle 11 of step 5, assembling reinforcement concrete ring beam 2 and on the main muscle of annular cuff stirrup 12;

Step 6, colligation Vierendeel girder reinforcing bar;

Step 7, install the Side shuttering of reinforced concrete circle beam;

Step 8, build the concrete of reinforced concrete circle beam, reinforced concrete circle beam 2 and Vierendeel girder 9 are cast as one.

The step that specifically installs of the described Side shuttering of step 7 is, earlier the drawknot screw rod is pierced in the connecting hole of beating on the vertical floor, then according to the punching spacing on the vertical floor, Side shuttering is carried out the correspondence punching, tighten the nut of drawknot bolt then, and reinforce with steel hoop in the periphery of Side shuttering.

Described Side shuttering is put together by arc formwork.

The periphery of described Side shuttering be arranged at intervals with level to the arc back cord.

But described bracket steel structure is finished according to the actual conditions field Welding or in processing factory.

Claims

1. ring beam, annular bracket post stiffness connected node, comprise the bracket steel structure that is connected between reinforced concrete column (1) and the Vierendeel girder (9), described reinforced concrete column (1) is made up of outsourcing reinforcing bar (13) and interior core concrete (14), described Vierendeel girder (9) is a reinforced concrete beam, it is characterized in that: described bracket steel structure is annular, it is peripheral and evenly have a upper ring plate (3) of pouring hole (7) by being looped around outsourcing reinforcing bar (13), lower ring plate (4) combines with the vertical floor (6) that radiation between the two is connected at interval, described bracket steel structure fuses with the reinforced concrete circle beam (2) of periphery, the longitudinal section of described reinforced concrete circle beam (2) is an inverted L shape, form cage of reinforcement by main muscle of annular (11) and stirrup (12), the top of cage of reinforcement rides over the end face of bracket steel structure, the lower peripheral of cage of reinforcement is around the side of bracket steel structure, the muscle of being advocated (10) of described Vierendeel girder (9) has at least 1/3rd to pass reinforced concrete column (1), all the other interrupt or bend towards in the reinforced concrete circle beam (2), and described reinforced concrete circle beam (2) is cast as one with Vierendeel girder (9).

2. ring beam according to claim 1, annular bracket post stiffness connected node is characterized in that: the external surface of the outsourcing reinforcing bar (13) that described reinforced concrete column (1) is corresponding with reinforced concrete circle beam (2) is welded with peg (8).

3. ring beam according to claim 1, annular bracket post stiffness connected node is characterized in that: be welded with ribs (5) on described upper ring plate (3) and the lower ring plate (4).