CN105297890A - Anchor connection node for buckling-restrained brace and concrete beam-column steel angles - Google Patents

Anchor connection node for buckling-restrained brace and concrete beam-column steel angles Download PDF

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Publication number
CN105297890A
CN105297890A CN201510849567.0A CN201510849567A CN105297890A CN 105297890 A CN105297890 A CN 105297890A CN 201510849567 A CN201510849567 A CN 201510849567A CN 105297890 A CN105297890 A CN 105297890A
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CN
China
Prior art keywords
angle steel
concrete
column
anchor
restrained brace
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Pending
Application number
CN201510849567.0A
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Chinese (zh)
Inventor
李帼昌
李文明
李嘉奇
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Shenyang Jianzhu University
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Shenyang Jianzhu University
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Priority to CN201510849567.0A priority Critical patent/CN105297890A/en
Publication of CN105297890A publication Critical patent/CN105297890A/en
Pending legal-status Critical Current

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Abstract

The invention discloses an anchor connection node for a buckling-restrained brace and concrete beam-column steel angles. The anchor connection node comprises anchoring parts, anchor plates and a node plate, wherein the anchoring parts are anchored in a concrete beam and a concrete column; the anchor plates are arranged at two ends of the anchoring parts; the node plate is connected to the anchor plates; each anchoring part comprises a plurality of steel angle groups which are arranged at intervals; each steel angle group comprises first steel angles and second steel angles, which are arranged in center symmetry; two ends of the first steel angles and second steel angles are respectively welded on the anchor plates; each anchor plate comprises a horizontal plate and a vertical plate which are integrally arranged; the horizontal plates are attached to the edge of the concrete beam; the vertical plates are attached to the edge of the concrete column; two adjacent sides of the node plate are respectively welded on each horizontal plate and each vertical plate; and bolt holes for fixed connection of the buckling-restrained brace are formed in the node plate. The first steel angles and the second steel angles are arranged in the center symmetry, so that force balance of the node plate is facilitated; and uniform force transfer of the nodes is ensured. The steel angles and the anchor plates are embedded into the beam and column, so that the stiffness and the strength of the beam and column are increased; and by right-angle steel angles, the anchor connection node is diverse in selectable model number and high in universality.

Description

Buckling restrained brace and beam column built from concrete angle steel anchor connection node
Technical field
The present invention relates to building structural member, particularly relate to a kind of buckling restrained brace and beam column built from concrete angle steel anchor connection 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 superior function.Wherein the connected node of buckling restrained brace and concrete frame is a very important ring in total, need that there is enough intensity, suitable rigidity, enough turning powers, can reasonably Transfer of Shear and moment of flexure, also to easily make and easy construction, the design principles that good node will meet " strong node, weak component " simultaneously.
In order to meet above-mentioned requirements, technician is studied this, a kind of buckling restrained brace disclosed in Chinese patent CN104563304A and the connected node of concrete beam and column, be 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, anchoring piece is made up of three spaced H profile steel, H profile steel and anchor slab integrally welded, gusset plate is integrally welded with the anchor slab being positioned at concrete beam top and the main inner side of concrete, gusset plate processes the bolt hole be fixedly connected with for buckling restrained brace.
The above-mentioned employing H profile steel structure be anchored in beam column built from concrete can strengthen the intensity of beam column to a certain extent, the plastic strain of beam column can be retrained to a certain extent, but the contact area of H profile steel in concrete is large, concrete beam and column node can be divided into more region by the number of H profile steel, the concrete collaborative work ability of concrete beam and column node is caused to reduce, make to occur that with the concrete of H profile steel contact position obvious stress is concentrated, and H profile steel takies larger area in beam column built from concrete, probably affect the layout of stirrup and vertical muscle in former concrete beam column, and then affect concreting and reinforcement construction.And H profile steel model is less, can not use part-structure, can only adopt lattice, be namely welded with three block plates, manufacturing procedure is many, complicated operation.
Therefore, the connected node designing a kind of better buckling restrained brace and beam column built from concrete is necessary, to solve the problem.
Summary of the invention
For prior art Problems existing, the invention provides a kind of angle cross section size less, pre-buried concrete beam and column node is less to concrete collaborative work capacity, does not affect buckling restrained brace and the beam column built from concrete angle steel anchor connection node of the layout of stirrup and vertical muscle in former concrete beam column.
To achieve these goals, the present invention adopts following technical scheme:
A kind of buckling restrained brace and beam column built from concrete angle steel anchor connection node, comprise the anchoring piece be anchored in concrete beam and concrete column, be located at the anchor slab at described anchoring piece two ends, and be connected to the gusset plate of described anchor slab, described anchoring piece is made up of the angle steel group organizing spaced setting more, often organize described angle steel group and comprise the first angle steel and the second angle steel that are centrosymmetric and arrange, the two ends of described first angle steel and described second angle steel are welded in described anchor slab respectively, described anchor slab has level board and vertical plate, described level board fits in the edge of described concrete beam, described vertical plate fits in the edge of described concrete column, the adjacent dual-side of described gusset plate is welded in described level board and described vertical plate respectively, described gusset plate is provided with the bolt hole be fixedly connected with for buckling restrained brace.
Further, the described angle steel group of many groups is distributed in described concrete beam or concrete column uniformly, and the distance described in two groups between angle steel group equals the distance between described first angle steel and described second angle steel.
Further, described second angle steel is that described first angle steel rotates 180 ° of formation, and described second angle steel and described first angle steel can fasten as the degree of lip-rounding.
Further, the side edge length that the outer end of described anchor slab is welded with described anchor slab than described gusset plate lengthens 150mm.
Further, described gusset plate surface thereof is provided with two row's bolts hole, protrudes and be provided with stiffening rib between the described bolt hole of two rows.
Beneficial effect of the present invention:
Anchoring piece is made up of the angle steel group organizing spaced setting more, often organize angle steel group and comprise the first angle steel and the second angle steel that are centrosymmetric and arrange, be conducive to the stress balance of gusset plate, ensure the even power transmission of node, the two ends of the first angle steel and the second angle steel are welded in anchor slab respectively, pre-buried angle steel and anchor slab in beam column, add the rigidity of beam column, and anchor slab can retrain the plastic strain of beam column, the strength and stiffness of node can both be got a promotion, the present invention adopts angle steel to be anchored in beam column, because the sectional dimension of angle steel is less, pre-buried concrete beam and column node is less to concrete collaborative work capacity, there is spacing between two angle steel simultaneously, this connected node is made not affect the layout of beam-column hooping and vertical muscle, convenient construction, and the model of angle steel is many, the angle steel of arbitrary section size can be selected, versatility is high, and do not need plurality of steel plates to weld, easy and simple to handle.
Accompanying drawing explanation
Fig. 1 is the structural representation of buckling restrained brace of the present invention and beam column built from concrete angle steel anchor connection node;
Fig. 2 is the sectional view of buckling restrained brace of the present invention and beam column built from concrete angle steel anchor connection node;
Fig. 3 is the structural representation that anchoring piece of the present invention, anchor slab and gusset plate connect;
In figure, 1-concrete beam, 2-concrete column, 3-anchor slab, 31-level board, 32-vertical plate, 4-anchoring piece, the 41-the first angle steel, the 42-the second angle steel, 5-gusset plate, 6-bolt hole, 7-stiffening rib.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Need explanation, all directionality instruction (such as up, down, left, right, before and afters in the embodiment of the present invention ...) only for explaining the relative position relation, motion conditions etc. under a certain particular pose (as shown in drawings) between each parts, if when this particular pose changes, then directionality instruction also correspondingly changes thereupon.
In addition, relate to the description of " first ", " second " etc. in the present invention only for describing object, and instruction can not be interpreted as or imply its relative importance or the implicit quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In addition; technical scheme between each embodiment can be combined with each other; but must be can be embodied as basis with those of ordinary skill in the art; when technical scheme combination occur conflicting maybe cannot realize time will be understood that the combination of this technical scheme does not exist, also not within the protection domain of application claims.
As Fig. 1, the present invention proposes a kind of buckling restrained brace and beam column built from concrete angle steel anchor connection node, comprises the anchoring piece 4 be anchored in concrete beam 1 and concrete column 2, is located at the anchor slab 3 at anchoring piece 4 two ends, and be connected to the gusset plate 5 of anchor slab 3.Pre-buried anchoring piece 4 and anchor slab 3 in concrete beam 1 and concrete column 2, add the rigidity of concrete beam 1 and concrete column 2, and anchor slab 3 can retrain the plastic strain of beam column, the strength and stiffness of node can both be got a promotion.
As Fig. 2 and Fig. 3, anchoring piece 4 is made up of the angle steel group organizing spaced setting more, often organize angle steel group and comprise the first angle steel 41 and the second angle steel 42 being centrosymmetric and arranging, second angle steel 42 is that the first angle steel 41 planar rotates 180 ° of formation, second angle steel 42 and the first angle steel 41 can fasten as the degree of lip-rounding, and the first angle steel 41 and the second angle steel 42 are right angle type, the first angle steel 41 and the second angle steel 42 that Central Symmetry is arranged, be conducive to the stress balance of gusset plate 5, ensure the even power transmission of node.Many groups angle steel group is distributed in concrete beam 1 or concrete column 2 uniformly, distance between two groups of angle steel groups equals the distance between the first angle steel 41 and the second angle steel 42, anchoring piece 4 in concrete beam 1 and concrete column 2 is arranged evenly, the problem of unbalance stress can not be there is.The development length of angle steel is equal with the thickness of concrete beam 1 or concrete column, and the quantity of angle steel can be selected according to the actual requirements.The angle steel at right angle is adopted in the present invention, because the sectional dimension of angle steel is less, pre-buried concrete beam and column node is less to concrete collaborative work capacity, there is spacing between two angle steel simultaneously, this connected node is made not affect the layout of beam-column hooping and vertical muscle, facilitate structure Construction treatment, do not affect concreting and reinforcement construction, and be easy to realize suitability for industrialized production, site assembly is easy, building site accurate positioning, thus greatly save the set-up time, improve engineering efficiency.And the model of angle steel is many, the angle steel of arbitrary section size can be selected, and not need plurality of steel plates to weld, easy and simple to handle.
As Fig. 1 and Fig. 2, the two ends of the first angle steel 41 and the second angle steel 42 are welded in anchor slab 3 respectively, anchor slab 3 has level board 31 and vertical plate 32, level board 31 fits in the edge of concrete beam 1, vertical plate 32 fits in the edge of concrete column 2, anchoring piece 4 and anchor slab 3 is buried underground in beam column built from concrete, add the steel ratio of node region, therefore the strength and stiffness of node are obtained for lifting, and gusset plate 3 retrains the plastic strain of beam column to a certain extent, beam may be occurred, and the position that plasticity is twisted is shifted in girder span by beam-ends, be very beneficial for " strong node, weak rod member " design principles.
As Fig. 1, the adjacent dual-side of gusset plate 5 is welded in level board 31 and vertical plate 32 respectively, the side edge length that the outer end of anchor slab 3 is welded with anchor slab 3 than gusset plate 5 lengthens 150mm, learn through finite element analysis, the length that this section lengthens effectively can bear part extruding, avoid contact concrete to enter stress collected state too early, extend the Nodes life-span.Gusset plate 5 is provided with the bolt hole 6 be fixedly connected with for buckling restrained brace, and gusset plate 5 surface thereof is provided with protrusion between two row's bolts hole 6, two row bolts hole 6 and is provided with stiffening rib 7, and the quantity of bolt hole 6 is determined according to the actual requirements.
In factory, first the two ends of first angle steel 41, second angle steel 42 at right angle are welded in anchor slab 3, welded by the mode of plug welding, then gusset plate 5 is welded with anchor slab 3, the mode of being welded by double welded joint is welded, and be welded on gusset plate 5 by stiffening rib 7, and in factory, complete the operation of die-cut bolt hole 6 on gusset plate 5 in advance.After above-mentioned node component completes in advance in factory, node is placed in the node location of concrete beam 1 and concrete column 2, assembling reinforcement, fixes by template, concreting, is finally completed and being fixedly connected with of buckling restrained brace by the bolt hole 6 on gusset plate 5 with frictional high-strength bolts.
Above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those skilled in the art are to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from aim and the scope of the technical program, it all should be encompassed in right of the present invention.

Claims (5)

1. a buckling restrained brace and beam column built from concrete angle steel anchor connection node, it is characterized in that, comprise: be anchored at the anchoring piece in concrete beam and concrete column, be located at the anchor slab at described anchoring piece two ends, and be connected to the gusset plate of described anchor slab, described anchoring piece is made up of the angle steel group organizing spaced setting more, often organize described angle steel group and comprise the first angle steel and the second angle steel that are centrosymmetric and arrange, the two ends of described first angle steel and described second angle steel are welded in described anchor slab respectively, described anchor slab has level board and vertical plate, described level board fits in the edge of described concrete beam, described vertical plate fits in the edge of described concrete column, the adjacent dual-side of described gusset plate is welded in described level board and described vertical plate respectively, described gusset plate is provided with the bolt hole be fixedly connected with for buckling restrained brace.
2. buckling restrained brace according to claim 1 and concrete beam and column angle steel anchor connection node, it is characterized in that: the described angle steel group of many groups is distributed in described concrete beam or concrete column uniformly, and the distance described in two groups between angle steel group equals the distance between described first angle steel and described second angle steel.
3. buckling restrained brace according to claim 1 and concrete beam and column angle steel anchor connection node, is characterized in that: described second angle steel is that described first angle steel rotates 180 ° of formation, and described second angle steel and described first angle steel can fasten as the degree of lip-rounding.
4. buckling restrained brace according to claim 1 and concrete beam and column angle steel anchor connection node, is characterized in that: the side edge length that the outer end of described anchor slab is welded with described anchor slab than described gusset plate lengthens 150mm.
5. buckling restrained brace according to claim 1 and concrete beam and column angle steel anchor connection node, is characterized in that: described gusset plate surface thereof is provided with two row's bolts hole, protrudes and be provided with stiffening rib between the described bolt hole of two rows.
CN201510849567.0A 2015-11-26 2015-11-26 Anchor connection node for buckling-restrained brace and concrete beam-column steel angles Pending CN105297890A (en)

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CN201510849567.0A CN105297890A (en) 2015-11-26 2015-11-26 Anchor connection node for buckling-restrained brace and concrete beam-column steel angles

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107100275A (en) * 2017-04-21 2017-08-29 黑龙江八农垦大学 The angle steel web member connecting node that a kind of steel plate shear force wall is connected with concrete frame
CN107119825A (en) * 2017-04-21 2017-09-01 黑龙江八农垦大学 The T-steel truss connecting node that a kind of steel plate shear force wall is connected with concrete frame

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009144500A (en) * 2007-11-22 2009-07-02 Asahi Industries Co Ltd Shearing reinforcement structure for column-beam joint part of uppermost story
CN104563304A (en) * 2015-01-13 2015-04-29 沈阳建筑大学 Joint for connecting buckling-restrained brace, concrete beam and concrete column
CN204456451U (en) * 2015-01-13 2015-07-08 沈阳建筑大学 The connected node of a kind of buckling restrained brace and concrete beam and column
CN204456452U (en) * 2015-01-13 2015-07-08 沈阳建筑大学 A kind of buckling restrained brace and concrete frame beam connecting node
CN205153121U (en) * 2015-11-26 2016-04-13 沈阳建筑大学 Buckling restrained brace and concrete beam column angle steel anchor connected node

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009144500A (en) * 2007-11-22 2009-07-02 Asahi Industries Co Ltd Shearing reinforcement structure for column-beam joint part of uppermost story
CN104563304A (en) * 2015-01-13 2015-04-29 沈阳建筑大学 Joint for connecting buckling-restrained brace, concrete beam and concrete column
CN204456451U (en) * 2015-01-13 2015-07-08 沈阳建筑大学 The connected node of a kind of buckling restrained brace and concrete beam and column
CN204456452U (en) * 2015-01-13 2015-07-08 沈阳建筑大学 A kind of buckling restrained brace and concrete frame beam connecting node
CN205153121U (en) * 2015-11-26 2016-04-13 沈阳建筑大学 Buckling restrained brace and concrete beam column angle steel anchor connected node

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107100275A (en) * 2017-04-21 2017-08-29 黑龙江八农垦大学 The angle steel web member connecting node that a kind of steel plate shear force wall is connected with concrete frame
CN107119825A (en) * 2017-04-21 2017-09-01 黑龙江八农垦大学 The T-steel truss connecting node that a kind of steel plate shear force wall is connected with concrete frame

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Application publication date: 20160203