CN204456452U - A kind of buckling restrained brace and concrete frame beam connecting node - Google Patents
A kind of buckling restrained brace and concrete frame beam connecting node Download PDFInfo
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- CN204456452U CN204456452U CN201520023320.9U CN201520023320U CN204456452U CN 204456452 U CN204456452 U CN 204456452U CN 201520023320 U CN201520023320 U CN 201520023320U CN 204456452 U CN204456452 U CN 204456452U
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- anchor slab
- concrete
- gusset plate
- lower anchor
- node
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Abstract
A kind of buckling restrained brace and concrete frame beam connecting node, its anchoring piece is by one group of spaced H profile steel and upper and lower anchor slab is integrally welded forms; Gusset plate and lower anchor slab integrally welded, the two ends of lower anchor slab lengthen than gusset plate side, and there is the bolt hole be fixedly connected with for buckling restrained brace on gusset plate both sides.The advantage of this node is: H profile steel is good at perpendicular internal stability, and rigidity is high, not easily unstability; Shaped steel and anchor slab bonding area greatly, not easily produce drawing and destroy; Shaped steel contacts power transmission area with concrete large, can evenly spread in concrete beam by power; Lower anchor slab two ends elongated portion can effectively avoid gusset plate and concrete directly to extrude, and slows down stress and concentrates, extend node application life; Have space between shaped steel, the globality of concrete beam is unaffected, does not affect the stirrup in concrete beam and vertical muscle layout, convenient construction; Concrete girder connection region steel ratio increases, and the plastic strain of upper and lower anchor slab restained beam, makes the strength and stiffness of node improve; Whole component can make in factory, saves the engineering time.
Description
Technical field
The utility model relates to building structural member, particularly a kind of buckling restrained brace and concrete frame beam connecting node.
Background technology
Band buckling restrained brace concrete frame structure because having anti-seismic performance, easy construction and save material etc., just apply at building field by superiority.Wherein the connected node of buckling restrained brace and concrete frame is a very important ring in total, requires to have enough intensity, suitable rigidity, enough turning powers, can reasonably Transfer of Shear and moment of flexure; To easily make and easy construction simultaneously.Good node will meet the design principles of " strong node, weak component ".
Existing buckling restrained brace and concrete frame beam connecting node have following several:
One is peg formula anchor connection node (node as disclosed in CN102011434A patent application).It is employing one piece of integral plate as node component, the upper lateral of steel plate is interted multiple peg, is anchored in concrete beam, as anchoring piece, the bottom of steel plate is exposed at outside concrete beam, as the gusset plate be fixedly connected with buckling restrained brace.The shortcoming of this node is: concrete beam cuts in half by monoblock steel plate, and the globality of concrete beam is weakened, and intensity reduces; Steel plate as occurred tilting, can produce when pressurized eccentric, directly being rived by concrete beam in formwork casting process; During colligation concrete beam stirrup, steel plate becomes obstacle, and construction is inconvenient.
Another kind is by the shape steel plate of steel plate instead with vertical convex tendon with peg in above-mentioned peg formula anchor connection node.This node still uses one piece of integral plate as node component, and its shortcoming is identical with above-mentioned peg formula anchor connection node.
The third is angle steel formula anchor connection node.It is anchored in concrete beam using one group of vertical angle steel integrally welded with upper and lower anchor slab as anchoring piece, gusset plate and lower anchor slab integrally welded.The shortcoming of this node is: angle steel symmetry and less stable; Angle steel and anchor slab bonding area less, easily produce drawing in loading process and destroy; Angle steel is with concrete to contact power transmission area less, and node strength is poor.
4th kind is dowel formula anchor connection node.It changes the angle steel in above-mentioned angle steel formula anchor connection node into vertical dowel.The shortcoming of this node is: dowel is poor at perpendicular internal stability; Dowel and anchor slab bonding area little, easily produce drawing in loading process and destroy; Dowel is with concrete to contact power transmission area less, and node strength is poor.
Utility model content
The purpose of this utility model is improved for the shortcoming of above-mentioned prior art, provides a kind of and can better transmit bending and shearing, meets requirement for bearing capacity, the buckling restrained brace of convenient construction and concrete frame beam connecting node.
For achieving the above object, the buckling restrained brace that the utility model provides and concrete frame beam connecting node, be made up of the anchoring piece be anchored in concrete frame beam and the gusset plate being placed in concrete frame beam bottom; Described anchoring piece is made up of one group of spaced H profile steel, the top and bottom of H profile steel respectively with upper anchor slab and lower anchor slab integrally welded, the inward flange of upper anchor slab and lower anchor slab is in the outside of concrete frame beam; Described gusset plate and lower anchor slab integrally welded, the two ends of lower anchor slab 4 lengthen 200mm than the side of gusset plate; There is vertical stiffening rib the center of gusset plate, gusset plate has the bolt hole be fixedly connected with for buckling restrained brace.
As required, vertical stiffening rib can be established in the center of gusset plate.
Compared with prior art, the utility model has the advantages that:
1, H profile steel perpendicular internal stability and rigidity high, not easily unstability.
2, H profile steel and anchor slab bonding area are greatly, be not easy to produce drawing and destroy in loading process.
3, H profile steel contacts power transmission area comparatively greatly with concrete, power can be evenly spread in concrete beam.
4, lower anchor slab two ends elongated portion can effectively avoid gusset plate and concrete directly to extrude, and slows down stress and concentrates, and extends the application life of node.
5, H profile steel has space each other, makes the globality of concrete beam unaffected; H profile steel spaced apart does not affect stirrup in former concrete beam and vertical muscle is arranged, convenient construction.
6, concrete girder connection region steel ratio increases, and upper and lower anchor slab to a certain extent can the plastic strain of restained beam, the strength and stiffness of node is all got a promotion, meets the design principles of " strong node, weak rod member ".
7, whole component can make in factory, in-site installation, saves the engineering time, is conducive to improving engineering efficiency.
Accompanying drawing explanation
Accompanying drawing is the structural representation of the utility model embodiment, and wherein Fig. 1 is the front view of this embodiment; Fig. 2 is the stereogram of Fig. 1 interior joint component.
In figure: 1-concrete frame beam; 2-upper anchor slab; 3-H profile steel; 4-lower anchor slab; 5-gusset plate; 6-stiffening rib; 7-bolt hole.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Composition graphs 1 and Fig. 2, the present embodiment buckling restrained brace and concrete frame beam connecting node, be made up of the anchoring piece be anchored in concrete frame beam 1 and the gusset plate 5 being placed in concrete frame beam 1 bottom, wherein anchoring piece is made up of one group of (the present embodiment is five) H profile steel 3 and upper anchor slab 2, lower anchor slab 4, the inward flange of upper anchor slab 2 and lower anchor slab 4 is in the outside of concrete frame beam 1, and the length of upper anchor slab 2 and lower anchor slab 4 has more 200mm than the transverse width of gusset plate 5.Whole node component makes in factory: be arranged symmetrically between upper anchor slab 2 and lower anchor slab 4 by spaced for five H profile steel, by the top and bottom of H profile steel respectively with upper anchor slab 2 and lower anchor slab 4 integrally welded; By integrally welded to gusset plate 5 and lower anchor slab 4, the two ends of lower anchor slab 4 lengthen 200mm than the side of gusset plate 5; Vertically weld two stiffening ribs 6 in the center of gusset plate 5, on the gusset plate of stiffening rib both sides oblique process respectively be parallel to each other two row bolts hole 7.During site operation, node component factory made is placed in the Nodes of Vierendeel girder, and assembling reinforcement is fixed by template, concreting, is finally fixedly connected with buckling restrained brace (not shown) with gusset plate by bolt hole with frictional high-strength bolts.
Claims (2)
1. buckling restrained brace and a concrete frame beam connecting node, is made up of the anchoring piece be anchored in concrete frame beam (1) and the gusset plate (5) being placed in concrete frame beam (1) bottom; It is characterized in that: described anchoring piece is made up of one group of spaced H profile steel (3), the top and bottom of H profile steel (3) respectively with upper anchor slab (2) and lower anchor slab (4) integrally welded, the inward flange of upper anchor slab (2) and lower anchor slab (4) is in the outside of concrete frame beam (1); Described gusset plate (5) is integrally welded with lower anchor slab (4), and the two ends of lower anchor slab (4) lengthen 200mm than the side of gusset plate (5); There is vertical stiffening rib (6) center of gusset plate (5), gusset plate (5) has the bolt hole (7) be fixedly connected with for buckling restrained brace.
2. buckling restrained brace according to claim 1 and concrete frame beam connecting node, is characterized in that: be provided with vertical stiffening rib (6) in the center of described gusset plate (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520023320.9U CN204456452U (en) | 2015-01-13 | 2015-01-13 | A kind of buckling restrained brace and concrete frame beam connecting node |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520023320.9U CN204456452U (en) | 2015-01-13 | 2015-01-13 | A kind of buckling restrained brace and concrete frame beam connecting node |
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| CN204456452U true CN204456452U (en) | 2015-07-08 |
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| CN201520023320.9U Active CN204456452U (en) | 2015-01-13 | 2015-01-13 | A kind of buckling restrained brace and concrete frame beam connecting node |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104563303A (en) * | 2015-01-13 | 2015-04-29 | 沈阳建筑大学 | Connecting joint for buckling-restrained brace and concrete frame beam |
| CN105297890A (en) * | 2015-11-26 | 2016-02-03 | 沈阳建筑大学 | Anchor connection node for buckling-restrained brace and concrete beam-column steel angles |
| CN105297891A (en) * | 2015-11-26 | 2016-02-03 | 沈阳建筑大学 | Flexing constraint support and concrete beam-column T-shaped steel anchoring and connecting node |
| CN106869409A (en) * | 2017-01-25 | 2017-06-20 | 东南大学 | High-performance pre-buried steel anchor slab |
-
2015
- 2015-01-13 CN CN201520023320.9U patent/CN204456452U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104563303A (en) * | 2015-01-13 | 2015-04-29 | 沈阳建筑大学 | Connecting joint for buckling-restrained brace and concrete frame beam |
| CN105297890A (en) * | 2015-11-26 | 2016-02-03 | 沈阳建筑大学 | Anchor connection node for buckling-restrained brace and concrete beam-column steel angles |
| CN105297891A (en) * | 2015-11-26 | 2016-02-03 | 沈阳建筑大学 | Flexing constraint support and concrete beam-column T-shaped steel anchoring and connecting node |
| CN106869409A (en) * | 2017-01-25 | 2017-06-20 | 东南大学 | High-performance pre-buried steel anchor slab |
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