CN104563304A - Joint for connecting buckling-restrained brace, concrete beam and concrete column - Google Patents
Joint for connecting buckling-restrained brace, concrete beam and concrete column Download PDFInfo
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- CN104563304A CN104563304A CN201510017237.5A CN201510017237A CN104563304A CN 104563304 A CN104563304 A CN 104563304A CN 201510017237 A CN201510017237 A CN 201510017237A CN 104563304 A CN104563304 A CN 104563304A
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Abstract
The invention discloses a joint for connecting a buckling-restrained brace, a concrete beam and a concrete column; an anchoring part anchored in the concrete beam and the concrete column is composed of two groups of spaced H-shaped profile steels; the H-shaped profile steels and an anchoring plate are welded into a whole one; the internal edge of the anchoring plate id arranged at the external sides of the concrete beam and the concrete column; a joint plate is integrally welded with the anchoring plate; the external end of the anchoring plate integrally welded with the joint plate is lengthened to be longer than the lateral side of the joint plate; and bolt holes for fixing the buckling-restrained brace are formed on the joint plate. The H-shaped profile steels in the joint plate have good stability in a plane and high rigidness and are not easy in instability; the profile steels have big welded areas with the anchoring plate and are not easy to produce pulling/pushing damage; the profile steels have big contact and load-transfer areas with the concrete and are capable of uniformly dispersing the load to the concrete beam; the lengthened parts at two ends of the anchoring plate are capable of effectively avoiding direct extrusion between the joint plate and the concrete, so that the stress concentration is relieved and the service life of the joint is prolonged; the integrality of the concrete beam and the concrete column is not influenced, so that hoops and longitudinal ribs in the concrete beam can be arranged easily; the steel ratio in the joint area of the beam and the column is increased and the strength and rigidness of the joint is improved by the plastic deformation of the beam restrained by the anchoring plate; the whole component can be manufactured in a factory and the construction time is saved.
Description
Technical field
The present invention relates to building structural member, particularly the connected node of a kind of buckling restrained brace and concrete beam and column.
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 ".
The connected node of existing buckling restrained brace and concrete beam and column has 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 steel plate parts transversely be anchored in concrete beam and column interts multiple peg, forms anchoring piece, is exposed at part outside concrete beam and column as the gusset plate be fixedly connected with buckling restrained brace.The shortcoming of this node is: concrete beam and column cuts in half by monoblock steel plate respectively, and the globality of concrete beam and column is weakened, and intensity reduces; Steel plate as occurred tilting, can produce when pressurized eccentric, being rived by concrete beam and column in formwork casting process; When colligation concrete beam and column tie-bar, 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 and column using two groups of integrally welded with anchor slab respectively vertical angle steel as anchoring piece, gusset plate and anchor slab integrally welded.The shortcoming of this node is: angle steel symmetry and poor stability; 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 less stable; Dowel and anchor slab bonding area little, very easily produce in loading process drawing destroy; Dowel is with concrete to contact power transmission area little, and node strength is poor.
Summary of the invention
The shortcoming that the object of the invention is for above-mentioned prior art is improved, and provides a kind of and can better transmit bending and shearing, meets requirement for bearing capacity, the connected node of the buckling restrained brace of convenient construction and concrete beam and column.
For achieving the above object, the connected node of buckling restrained brace provided by the invention and concrete beam and column, is made up of the anchoring piece be anchored in concrete beam and concrete column and the gusset plate being placed in concrete beam and concrete column outside; Described anchoring piece is made up of (often the quantity of the contained H profile steel of group requires to determine according to actual carrying capacity) two groups of spaced H profile steel, and two groups of H profile steel are integrally welded with anchor slab respectively, and the inward flange of anchor slab is in the outside of concrete beam and concrete column; Described gusset plate is integrally welded with the anchor slab be positioned at inside concrete beam top and concrete column; The outer end of the anchor slab integrally welded with gusset plate lengthens 100mm than the side of gusset plate; Gusset plate there is 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, advantage of the present invention is:
1, H profile steel concrete beam and column place inplane 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 and column.
4, integrally welded with gusset plate anchor slab end 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 and column unaffected; The stirrup of concrete beam and column and vertical muscle is facilitated to arrange.
6, concrete beam and column increases at node region steel ratio, and anchor slab to a certain extent can the plastic strain of restained beam, thus the strength and stiffness of node are got a promotion, and meets the design principles of " strong node, weak rod member ".
7, whole node 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 embodiment of the present invention, 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 beam; 2-concrete column; 3-anchor slab; 4-H profile steel; 5-gusset plate; 6-bolt hole; 7-stiffening rib.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.
Composition graphs 1 and Fig. 2, the connected node of the present embodiment buckling restrained brace and concrete beam and column, is made up of the anchoring piece be anchored in concrete beam 1 and concrete column 2 and the gusset plate 5 being placed in concrete beam and concrete column outside.Be anchored at anchoring piece in concrete beam 1 to be made up of three spaced H profile steel 4, be anchored at anchoring piece in concrete column 2 to be made up of five spaced H profile steel 4, the two ends of two groups of H profile steel are integrally welded with anchor slab 3 respectively, and the inward flange of anchor slab 3 is in the outside of concrete beam 1 and concrete column 2; Gusset plate 5 and the anchor slab be positioned at inside concrete beam 1 top and concrete column 2 adopt double welded joint integrally welded.The outer end of the anchor slab integrally welded with gusset plate lengthens 100mm than the side of gusset plate; Gusset plate 5 processes the bolt hole 6 be fixedly connected with for buckling restrained brace.A vertical stiffening rib 7 is established in the center of gusset plate 5.
In factory, above-mentioned node component is completed making in advance, node is placed in the node location of concrete beam and column, assembling reinforcement, fixes by template, concreting, is finally completed and being fixedly connected with of buckling restrained brace by the bolt hole on gusset plate with frictional high-strength bolts.
Claims (2)
1. a connected node for buckling restrained brace and concrete beam and column, is made up of the anchoring piece be anchored in concrete beam (1) and concrete column (2) and the gusset plate (5) being placed in concrete beam and concrete column outside; It is characterized in that: described anchoring piece is made up of two groups of spaced H profile steel (4), two groups of H profile steel (4) are integrally welded with anchor slab (3) respectively, and the inward flange of anchor slab (3) is in the outside of concrete beam (1) and concrete column (2); Described gusset plate (5) is integrally welded with the anchor slab be positioned at inside concrete beam top and concrete column; The outer end of the anchor slab (3) integrally welded with gusset plate lengthens 100mm than the side of gusset plate (5); Gusset plate (5) there is the bolt hole (6) be fixedly connected with for buckling restrained brace.
2. the connected node of buckling restrained brace according to claim 1 and concrete beam and column, is characterized in that: be provided with vertical stiffening rib (7) in the center of described gusset plate (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510017237.5A CN104563304A (en) | 2015-01-13 | 2015-01-13 | Joint for connecting buckling-restrained brace, concrete beam and concrete column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510017237.5A CN104563304A (en) | 2015-01-13 | 2015-01-13 | Joint for connecting buckling-restrained brace, concrete beam and concrete column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104563304A true CN104563304A (en) | 2015-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510017237.5A Pending CN104563304A (en) | 2015-01-13 | 2015-01-13 | Joint for connecting buckling-restrained brace, concrete beam and concrete column |
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| CN (1) | CN104563304A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201095A (en) * | 2015-10-16 | 2015-12-30 | 中建四局第一建筑工程有限公司 | Restrained brace anti-seismic structure for super high-rise building and manufacturing method |
| 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 |
| WO2017197960A1 (en) * | 2016-05-19 | 2017-11-23 | 华南理工大学 | Connecting gusset plate with sliding end plate for buckling-restrained brace |
| CN109457815A (en) * | 2018-12-28 | 2019-03-12 | 上海应用技术大学 | A kind of pre-buried node of corrugated steel |
-
2015
- 2015-01-13 CN CN201510017237.5A patent/CN104563304A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201095A (en) * | 2015-10-16 | 2015-12-30 | 中建四局第一建筑工程有限公司 | Restrained brace anti-seismic structure for super high-rise building and manufacturing method |
| CN105201095B (en) * | 2015-10-16 | 2017-10-27 | 中建四局第一建筑工程有限公司 | A kind of high-rise building constraint support anti-seismic structure and preparation method |
| 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 |
| WO2017197960A1 (en) * | 2016-05-19 | 2017-11-23 | 华南理工大学 | Connecting gusset plate with sliding end plate for buckling-restrained brace |
| US10280642B2 (en) | 2016-05-19 | 2019-05-07 | South China University Of Technology | Connecting gusset plate with sliding end plate for buckling-restrained brace |
| CN109457815A (en) * | 2018-12-28 | 2019-03-12 | 上海应用技术大学 | A kind of pre-buried node of corrugated steel |
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Application publication date: 20150429 |
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| RJ01 | Rejection of invention patent application after publication |