CN108691358A - A kind of combination anchor slab, anti-buckling support connecting node and its installation method - Google Patents
A kind of combination anchor slab, anti-buckling support connecting node and its installation method Download PDFInfo
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- CN108691358A CN108691358A CN201810666503.0A CN201810666503A CN108691358A CN 108691358 A CN108691358 A CN 108691358A CN 201810666503 A CN201810666503 A CN 201810666503A CN 108691358 A CN108691358 A CN 108691358A
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- 238000009434 installation Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000004567 concrete Substances 0.000 claims description 19
- 229920005549 butyl rubber Polymers 0.000 claims description 5
- 239000002131 composite material Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 18
- 238000003466 welding Methods 0.000 description 13
- 238000010276 construction Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 10
- 238000013461 design Methods 0.000 description 8
- 238000005452 bending Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 7
- 238000012546 transfer Methods 0.000 description 7
- 230000008901 benefit Effects 0.000 description 6
- 239000011150 reinforced concrete Substances 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 230000000994 depressogenic effect Effects 0.000 description 4
- 238000010008 shearing Methods 0.000 description 4
- 229910000679 solder Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000021615 conjugation Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 235000010627 Phaseolus vulgaris Nutrition 0.000 description 1
- 244000046052 Phaseolus vulgaris Species 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
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- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
- E04B1/21—Connections specially adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
- E04B1/21—Connections specially adapted therefor
- E04B1/215—Connections specially adapted therefor comprising metallic plates or parts
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
- E04B1/22—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material with parts being prestressed
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/025—Structures with concrete columns
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Abstract
The present invention provides a kind of combination anchor slabs and anti-buckling support connecting node, are related to civil engineering structure technical field.The combination anchor slab includes the first side plate, the second side plate, sleeve and high-strength bolt;It is both provided with through-hole on the corresponding position of first side plate and the second side plate;High-strength bolt sequentially passes through the through-hole on through-hole, sleeve and the second side plate on the first side plate.The anti-buckling support connecting node includes two gusset plates and three combination anchor slabs.The combination anchor slab of the present invention and anti-buckling support connecting node, due to the composite structure using high-strength bolt and sleeve, solves the problems such as dowel and its plug weld bonding strength are insufficient, dowel arrangement quantity is excessive, anchor slab is by curved, dowel connection tension insufficient rigidity.On this basis, the present invention also provides the installation methods of anti-buckling support connecting node.
Description
Technical field
The present invention relates to civil engineering structure technical fields, connect in particular to a kind of combination anchor slab, anti-buckling support
Connect node and its installation method.
Background technology
Anti-buckling support is a kind of novel lateral resisting at home and abroad risen in the recent decade and metal energy-dissipating and shock-absorbing component,
It can provide elastic lateral rigidity under small shake for structure, and the fuse component realization total cross-section under being shaken greatly in as structure
Dissipation seismic energy is surrendered, has mechanical concept clear, symmetrical, full, stable etc. excellent convenient for engineers design and Hysteresis Behavior
Point, therefore be widely used in during China is newly-built and the Aseismatic Design of existed building civil structure.China's building construction at present is with steel
Based on tendon concrete structure, meanwhile, anti-buckling be supported under tension and compression force effect can surrender energy consumption, and bearing capacity is larger, therefore need
It wants a kind of and can guarantee the anti-buckling joint form for being supported on and effectively working with power transmission in reinforced concrete frame.
In existing connecting node technology, anti-buckling support is first spirally connected or welds with gusset plate, gusset plate again with positioned at mixing
The anchor slab welding of solidifying soil beam column outer surface, and anchor slab again by built-in fitting (such as dowel or steel plate) and reinforced concrete beam column into
Row connection.Such conventional coupling arrangement has the following problems:
1, the plug welding bonding strength between dowel and anchor slab is insufficient
For ease of construction, the general first and bottom anchor slab of dowel, by solder design, it is pre- to form the anchor slab with dowel in factory
Product directly enables dowel be inserted between beam-column hooping after transporting construction site to, finally (dowel is inserted into top by plug welding again
Welded in the circular hole of anchor slab) connect top anchor slab and dowel.It is connected due to there is live plug welding, weldquality is poor, even
It connects intensity and is less than dowel base material self-strength, often become weak link, be easy that dowel plug welding occurs in the case where supporting pulling force effect
Seam failure.
2, dowel quantity is excessive and effective dowel lazy weight
Since dowel plug welding connection bearing capacity is relatively low, anti-buckling support could be met by generally requiring to increase the quantity of dowel
Pulling force delivery request.However, due to inside concrete structure longitudinal reinforcement and stirrup arrangement it is closeer, be susceptible to dowel and anchor
The phenomenon that distribution length of plate is more than gusset plate length.When axial force of the supports is larger, this phenomenon is more prominent, enables be located at section instead
Anchor slab and dowel outside contact plate, which cannot effectively transmit support pulling force, to be caused not having intermal force, ultimately causes gusset plate length
Dowel destruction occurs in range because of effective force dowel lazy weight.
3, the tension insufficient rigidity problem of dowel connection
Since dowel Lack of support generally requires dowel saving for the effective dowel quantity for increasing in gusset plate region
Contact plate both sides are arranged symmetrically.However, due to being only simple between anchor slab thinner thickness and anchor slab and beam column built from concrete surface
Contact relation has no precompression between the two, therefore when pulling force effect is born in support, is susceptible to anchor slab bending and dowel is stretched
The phenomenon that long deformation, reduce the tension rigidity of anti-buckling support.
4, beam-ends shear-carrying capacity deficiency problem
It is general to require up and down to avoid support level pulling force from generating detrimental effect to beam due to concrete tension poor performance
Two layers of anti-buckling support uses interlaced arrangement form (i.e. arranged direction is opposite), is drawn by the level of the anti-buckling support of adjacent two layers
Pressure self-balancing come avoid to beam generate pulling force effect.But at the same time, the anti-buckling support of adjacent two layers must with it is same
Bean column node intersects, and since the anti-buckling support of adjacent two layers generates pulling force and pressure respectively, is vertically cut to what beam-ends generated
Power can be overlapped mutually, and easily cause beams of concrete and failure by shear locally occurs, and anti-buckling support connection is caused to be failed.
5, the Rigid Region between gusset plate and beam column and folding effect problem
Since gusset plate and the anchor slab on beam column surface are by solder design, and anchor slab is linked to be by dowel and beam column built from concrete
One, therefore stronger Rigid Region is formd in beam-column-gusset plate region, and then beam column bending computational length is shortened, it is easy
Enable beam column that failure by shear occurs.Further, since beam column will produce flexural deformation in earthquake, and exist between gusset plate and beam column
Weld seam constrains, therefore can also generate additional folding at the interface that gusset plate is connect with anchor slab when beam column generation flexural deformation and make
Firmly, and this additional force is not paid attention in node connection design, and gusset plate is caused solder design failure occur.
Invention content
The purpose of the present invention is to provide a kind of combination anchor slab, anti-buckling support connecting node and its installation methods, with solution
The existing connection low bearing capacity of anti-buckling support-reinforced concrete frame connecting node certainly in the prior art, dowel quantity
More, the problems such as tension Stiffness Drop is low.
To achieve the goals above, the present invention uses following technical scheme:
A kind of combination anchor slab provided by the invention, including the first side plate, the second side plate, sleeve and high-strength bolt;Described
Side plate is both provided with through-hole on the corresponding position of second side plate;The high-strength bolt sequentially passes through first side plate
On the through-hole, the through-hole on the sleeve and second side plate.
Based on the above technical solution, further, further include shear stud;The shear stud is separately positioned on institute
State that the first side plate corresponds to the side of second side plate and second side plate corresponds to the side of first side plate.The skill
Art scheme has technical effect that:Shear stud can enhance the vertical shearing power of combination anchor slab and support column, and combination anchor
The cross shear of plate and horizontal beam realizes the maximum lift of beam-ends shear-carrying capacity.Wherein, shear stud in the first side plate and
It is evenly arranged on second side plate, and is fixed with two plate-side plate weldings between two parties.
The present invention also provides a kind of anti-buckling support connecting nodes, including two gusset plates and three combinations of the above
Anchor slab;First combination anchor slab is set to the position lower edge of support column connection horizontal beam, first combination anchor slab
Described high-strength bolt or so runs through support column;Second combination anchor slab is set to one end of horizontal beam connection support column, the
The high-strength bolt of two combination anchor slabs runs through horizontal beam up and down;The third combination anchor slab is set to support column company
The high-strength bolt or so of the position upper edge of water receiving flat-topped ridge, the third combination anchor slab runs through support column;Described in first
Gusset plate is located at the angle of first combination anchor slab and second combination anchor slab;Second gusset plate is located at
The angle of second combination anchor slab and the third combination anchor slab.
Based on the above technical solution, further, the edge of first combination anchor slab is welded in second institute
The edge of combination anchor slab is stated, the edge of second combination anchor slab is welded in the edge of the third combination anchor slab.The skill
Art scheme has technical effect that:Realize that one combination two connection for combining anchor slab of anchor slab and shell of column of beam-ends are solid by welding
It is fixed, and improve its mechanical property so that welding relationship and high-strength bolt compound action enhance beam-ends shear-carrying capacity.
Based on the above technical solution, further, gusset plate includes central plate and two floors, further includes sliding-end
Plate and backing plate;The sliding end plate is fixedly welded on the central plate, and the backing plate is located at the side of the sliding end plate;It is described
High-strength bolt is stretched out from the sleeve, sequentially passed through after first side plate or second side plate sliding end plate and
The backing plate.The technical solution has technical effect that:The setting of sliding end plate and backing plate make gusset plate whole with anchor slab it
Between fastened by high-strength bolt, and it is unconventional be welded and fixed, and the node power transmission side of tradition " dowel tension, anchor slab bending "
Formula is changed to the novel mode of transfer force of " high-strength bolt tension, sliding end plate and the first side plate or the second side plate squeeze ", greatly improves
The bearing capacity and stiffness of connection.
Based on the above technical solution, further, further include adhesive-less layer;The adhesive-less layer is located at the sliding
Between end plate and the backing plate;And/or the adhesive-less layer is located at first side plate or second side plate and the cunning
It moves between end plate.The technical solution has technical effect that:Since adhesive-less layer has that frictional force is small, thickness is small and larger pre-
Substantially the characteristics of not generating depressed deformation under clamp force can make to keep pretightning force between combination anchor slab, sliding end plate, backing plate, and
It does not generate frictional force substantially each other, releases the tangent constraint between beam column and gusset plate, avoid in beam-column-gusset plate
Region forms too strong Rigid Region, the bending computational length of beam column is extended, also not in gusset plate when beam column generates flexural deformation
Folding active force is added with being generated at the interface for combining anchor slab connection, improves the stress performance of gusset plate.
Based on the above technical solution, further, the adhesive-less layer is made of butyl rubber.The technical solution
It has technical effect that:The meaning of adhesive-less layer is that after being loaded by prestressing force, adhesive-less layer the workpiece of both sides does not occur
Adhesion and it is difficult to the deformation restored, both sides workpiece remains able to freely opposite sliding.Since butyl rubber is with superior
Air-tightness and watertightness do not generate depressed deformation substantially under larger pretightning force.This material, which still has other rubber, simultaneously has
The small advantage of friction coefficient, preferably make adhesive-less layer.Preferably, adhesive-less layer should be fabricated to the fourth that thickness is 1 millimeter
Base rubber strip, and wherein one side with tack and another side without viscosity.
The present invention also provides a kind of installation methods of anti-buckling support connecting node, include the following steps:
Step 1:Three combination anchor slabs are embedded into support column in advance respectively and connect the position lower edge of horizontal beam, horizontal beam company
The one end for connecing support column connects the position upper edge of horizontal beam with support column;
Step 2:Using high-strength bolt, two gusset plates are separately mounted to first combination anchor slab and second combination
The angle of anchor slab, second combination anchor slab and third combine the angle of anchor slab.
Based on the above technical solution, further, before step 1, first by sleeve weld on the first side plate,
It is placed in horizontal beam or support column arrangement, after pouring into concrete, then sleeve and the second side plate is welded and fixed.The technical solution
Have technical effect that:Sleeve and the first side plate (or second side plate) are welded into prefabricated component in factory, and at the construction field (site)
Prefabricated component inserting is fixed in concrete water flat-topped ridge or support column, then after being welded and fixed with the second side plate (or first side plate)
It carries out cast-in-place.The full prefabricated construction in scene is realized, speed of application is fast and connects high capacity.
Based on the above technical solution, further, in step 1, the first side plate and the second side plate are respectively positioned on level
Beam is either in the profile of support column and the first side plate and the second side plate are flushed with the outer surface of horizontal beam or support column.The skill
Art scheme has technical effect that:First side plate and the second side plate are built in the profile of horizontal beam or support column, are both ensured
Conjugation after coagulation and bearing capacity have been also convenient for the construction of subsequent node plate.
The present invention has the advantages that:
1, combination anchor slab provided by the invention and anti-buckling support connecting node, using the combination of high-strength bolt and sleeve
The support power transfer mode of traditional " dowel tension, anchor slab are by curved " is changed into " high-strength bolt tension, sliding end plate by structure
Squeezed with side plate " power transmission pattern, solve that dowel and its plug weld bonding strength are insufficient, dowel arrangement quantity is excessive, anchor slab
The problems such as by curved, dowel connection tension insufficient rigidity.
2, the anti-buckling installation method for supporting connecting node provided by the invention is suitable for installation and uses combination anchor slab, prevents
Buckling support connecting node realizes the seismic energy dissipation structure that anti-buckling support, gusset plate and horizontal beam (or support column) connect,
Offer carrying, effective force, the support surrender energy consumption of combination anchor slab and anti-buckling support connecting node have been provided to the maximum extent
Advantage.
The additional technical feature and its advantage of the present invention will illustrate more obvious in following description content, or pass through
The concrete practice of the present invention is recognized that.
Description of the drawings
In order to illustrate more clearly of the technical solution of the specific embodiment of the invention, specific implementation mode will be described below
Needed in attached drawing be briefly described.It should be evident that the accompanying drawings in the following description is some implementations of the present invention
Mode for those of ordinary skill in the art without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the structural schematic diagram of combination anchor slab provided in an embodiment of the present invention;
Fig. 2 is that combination anchor slab provided in an embodiment of the present invention is implanted into the structural schematic diagram after support column;
Fig. 3 is the structural schematic diagram of anti-buckling support connecting node provided in an embodiment of the present invention;
Fig. 4 is a kind of structural schematic diagram of anti-buckling support connecting node interior joint plate provided in an embodiment of the present invention;
Fig. 5 is another structural schematic diagram of anti-buckling support connecting node interior joint plate provided in an embodiment of the present invention;
Fig. 6 is the flow chart of anti-buckling support connecting node installation method provided in an embodiment of the present invention.
Icon:The first side plates of 1-;The second side plates of 2-;3- sleeves;4- high-strength bolts;5- shear studs;6- support columns;7- water
Flat-topped ridge;8- central plates;9- floors;10- slides end plate;11- backing plates;12- adhesive-less layers.
Specific implementation mode
Technical scheme of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
The every other embodiment that personnel are obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for the description present invention and simplify description, do not indicate or imply the indicated device or element must have a particular orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for description purposes only, and is not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected;It can
Can also be electrical connection to be mechanical connection;It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
DESCRIPTION OF THE PRIOR ART:
In the prior art, anti-buckling support is first spirally connected or welds with gusset plate, gusset plate again with positioned at beam column built from concrete
The anchor slab of outer surface welds, and anchor slab is attached by built-in fitting (such as dowel or steel plate) with reinforced concrete beam column again.
There is the problems such as connection low bearing capacity, dowel quantity is more, tension Stiffness Drop is low in such conventional coupling arrangement.
Technical solution of the present invention is summarized:
Combination anchor slab provided in this embodiment, including the first side plate 1, the second side plate 2, sleeve 3 and high-strength bolt 4.Wherein,
Through-hole is both provided on the corresponding position of first side plate 1 and the second side plate 2, high-strength bolt 4 sequentially passes through logical on the first side plate 1
Through-hole on hole, sleeve 3 and the second side plate 2.
The technical solution of said combination anchor slab turns the support power transfer mode of traditional " dowel tension, anchor slab are by curved "
The power transmission pattern for becoming " 4 tension of high-strength bolt, sliding end plate 10 and side plate squeeze ", solves dowel and its plug weld connection is strong
The problems such as tension insufficient rigidity that degree is insufficient, dowel arrangement quantity is excessive, anchor slab is connected by curved, dowel.
Scheme for the above-mentioned prior art, with reference to specific embodiment to the skill of the present invention
Explanation is further explained in art scheme:
A kind of combination anchor slab is present embodiments provided, wherein:Fig. 1 is the structure of combination anchor slab provided in an embodiment of the present invention
Schematic diagram;Fig. 2 is that combination anchor slab provided in an embodiment of the present invention is implanted into the structural schematic diagram after support column 6.As shown in Figure 1, 2,
It includes the first side plate 1, the second side plate 2, sleeve 3 and high-strength bolt 4 to combine anchor slab.Wherein, the first side plate 1 and the second side plate 2
Through-hole is both provided on corresponding position, high-strength bolt 4 sequentially passes through on through-hole, sleeve 3 and the second side plate 2 on the first side plate 1
Through-hole.
Based on the above technical solution, as shown in Figure 1, 2, further, further include shear stud 5;Shear stud 5
It is separately positioned on the first side plate 1 and corresponds to the side of the second side plate 2 and the side of the second side plate 2 the first side plate 1 of correspondence.At this
In the combination anchor slab of structure, shear stud 5 can enhance the vertical shearing power of combination anchor slab and support column 6, and combination anchor slab
With the cross shear of horizontal beam 7, the maximum lift of beam column end shear-carrying capacity is realized.It should be noted that shear stud 5 exists
It is evenly arranged on first side plate 1 and the second side plate 2, and is fixed with two plate-side plate weldings between two parties.
The present invention also provides a kind of anti-buckling support connecting nodes, wherein:Fig. 3 is provided in an embodiment of the present invention anti-in the wrong
The structural schematic diagram of song support connecting node;Fig. 4 is anti-buckling support connecting node interior joint plate provided in an embodiment of the present invention
A kind of structural schematic diagram;Fig. 5 is another knot of anti-buckling support connecting node interior joint plate provided in an embodiment of the present invention
Structure schematic diagram.As shown in Fig. 3,4,5, anti-buckling support connecting node includes two gusset plates and three combinations of the above anchors
Plate.Specifically, first combination anchor slab is set to the position lower edge that support column 6 connects horizontal beam 7, the height of first combination anchor slab
Strength bolt 4 or so runs through support column 6;Second combination anchor slab is set to one end that horizontal beam 7 connects support column 6, second group
About 4 high-strength bolt for closing anchor slab runs through horizontal beam 7;Third combination anchor slab is set to the position that support column 6 connects horizontal beam 7
Upper edge, the high-strength bolt 4 or so that third combines anchor slab run through support column 6;First gusset plate is located at first combination anchor slab
With the angle of second combination anchor slab;Second gusset plate is located at the angle of second combination anchor slab and third combination anchor slab
Place.
Based on the above technical solution, as shown in figure 3, further, the edge of first combination anchor slab is welded in
The edge of second combination anchor slab, the edge of second combination anchor slab are welded in the edge of third combination anchor slab.The structure
Anti-buckling support connecting node realizes that one combination anchor slab of beam-ends combines being connected and fixed for anchor slab for two with shell of column by welding,
And improve its mechanical property so that welding relationship and 4 compound action of high-strength bolt, strengthened beam styletable shear-carrying capacity.
Based on the above technical solution, as shown in Fig. 3,4,5, further, gusset plate includes central plate 8 and two
Floor 9 further includes sliding end plate 10 and backing plate 11;Sliding end plate 10 is fixedly welded on central plate 8, and backing plate 11 is located at sliding end plate
10 side;High-strength bolt 4 is stretched out from sleeve 3, and sliding 10 He of end plate is sequentially passed through after the first side plate 1 or the second side plate 2
Backing plate 11.In the anti-buckling support connecting node of the structure, the setting for sliding end plate 10 and backing plate 11 so that gusset plate is whole
Fastened by high-strength bolt 4 between anchor slab, and it is unconventional be welded and fixed, and tradition " dowel tension, anchor slab bending "
Node mode of transfer force is changed to the novel mode of transfer force of " 4 tension of high-strength bolt, sliding end plate 10 and side plate squeeze ", greatly improves
The bearing capacity and stiffness of connection.
Based on the above technical solution, as shown in Figure 4,5, further, further include adhesive-less layer 12;Adhesive-less layer
12 are located between sliding end plate 10 and backing plate 11;And/or adhesive-less layer 12 is located at the first side plate 1 or the second side plate 2 and sliding
Between end plate 10.In the anti-buckling support connecting node of the structure, have that frictional force is small, thickness is small due to adhesive-less layer 12 and
The characteristics of not generating depressed deformation substantially under larger pretightning force can make to protect between combination anchor slab, sliding end plate 10, backing plate 11
The frictional force held pretightning force, and be released effectively between the face of being in contact with each other has connection high capacity, coupling stiffness big and release change
The effect of shape constraint.Specifically, adhesive-less layer 12 can be fabricated to a complete tabular, correspond to a complete sliding
End plate 10;The adhesive-less layer 12 of multiple small areas can also be set, any one high-strength bolt 4 is corresponded to.
Based on the above technical solution, as shown in Figure 4,5, further, adhesive-less layer 12 is made of butyl rubber.
In the anti-buckling support connecting node of the structure, the meaning of adhesive-less layer 12 is, the workpiece of both sides adds by prestressing force
After load, there is not adhesion and is difficult to the deformation restored in adhesive-less layer 12, and both sides workpiece remains able to freely opposite sliding.
Since butyl rubber has superior air-tightness and watertightness, depressed deformation is not generated substantially under larger pretightning force.While this
Material still has the small advantage of friction coefficient that other rubber have, preferably makes adhesive-less layer 12.Preferably, adhesive-less layer
12 should to be fabricated to thickness be 1 millimeter of butyl tape, and one side with tack and another side without viscosity.
The present invention also provides a kind of installation methods of anti-buckling support connecting node, and Fig. 6 is provided in an embodiment of the present invention
The flow chart of anti-buckling support connecting node installation method.The installation method of anti-buckling support connecting node includes the following steps:
Step 1:Three combination anchor slabs are embedded into support column 6 in advance respectively and connect the position lower edge of horizontal beam 7, horizontal beam 7
Connect the position upper edge of one end and the connection horizontal beam 7 of support column 6 of support column 6.
Step 2:Using high-strength bolt 4, two gusset plates are separately mounted to first combination anchor slab and second combination
The angle of anchor slab, second combination anchor slab and third combine the angle of anchor slab.
Based on the above technical solution, as shown in fig. 6, further, before step 1, first welding sleeve 3
It on the first side plate 1, is placed in horizontal beam 7 or 6 structure of support column, after pouring into concrete, then by sleeve 3 and the second side plate 2
It is welded and fixed.In this step, sleeve 3 and the first side plate 1 (or second side plate 2) are welded into prefabricated component in factory, and
Prefabricated component inserting is fixed in concrete water flat-topped ridge 7 or support column 6 by construction site, then with the second side plate 2 (or the first side plate
1) it is carried out after being welded and fixed cast-in-place.The full prefabricated construction in scene is realized, speed of application is fast and connects high capacity.
Based on the above technical solution, as shown in fig. 6, further, in step 1, the first side plate 1 and second
Side plate 2 is respectively positioned on horizontal beam 7 either in the profile of support column 6 and the first side plate 1 and the second side plate 2 and horizontal beam 7 or support
The outer surface of column 6 flushes.In this step, the first side plate 1 and the second side plate 2 are built in the profile of horizontal beam 7 or support column 6
It is interior, both ensure the conjugation after coagulation and bearing capacity, and is also convenient for the construction of subsequent node plate.
In conclusion technical solution of the present invention have the advantages that it is at least as follows:
(1) high-strength bolt 4 connects high capacity
" traditional approach of inside concrete dowel tension power transmission " is changed to " 4 tension mode of transfer force of high-strength bolt ", due to
High-strength bolt semi-finals degree and bearing capacity are significantly larger than dowel and its plug weld (3~4 times high), solve dowel and its plug weld connects
Connect the problem that intensity is insufficient, dowel arrangement quantity is excessive.
(2) extensional rigidity of built-in fitting connection is increased
Due to high-strength bolt 4 is finally anchored on sliding end plate 10 and backing plate 11 (thickness is big) and not the first side plate 1, the
On two side plates 2 (thickness is small), therefore the problem of not will produce combination anchor slab bending under pulling force effect is supported, passes through thicker sliding
End plate 10 come reduce plate member bent deformation, while by the pretightning force of high-strength bolt 4 keep sliding end plate 10 with combine anchor slab it
Between be in close contact, significantly increase the tension rigidity of support, tension rigidity supported caused by solving the connection of traditional dowel anchor slab
Insufficient problem.
(3) shear-carrying capacity of beam-ends is increased
Support force is only passed to beam column built from concrete by traditional type of attachment by dowel, but beam side anchor plate and column side anchor plate it
Between be individually separated component, cause to support and the vertical shear that beam-ends generates can only be resisted by beam-ends shear-carrying capacity.This
Inventive technique scheme is welded to each other using adjacent combination anchor slab and welds shearing resistance on 1 and second side plate 2 of all first side plates
Peg 5, can a part of Shear force within the beam end be preferably transferred to column undertake (by weld seam between horizontal and vertical side plate and
The shear stud 5 of column side carrys out power transmission), alleviate the shearing resistance effect of beam-ends.In addition, technical solution of the present invention uses high-strength bolt 4
It is connected instead of traditional dowel, since high-strength bolt 4 need to apply larger pretightning force, will produce by precompressed and clamp for beam-ends concrete and make
With, effectively limit be supported on beam-ends generation vertical shear caused by direct tension cracking carry out, further improve beam-ends
Shear-carrying capacity.
(4) beam column computational length is increased
Solder design between traditional gusset plate and anchor slab is different, is arranged between combination anchor slab and sliding end plate 10
Adhesive-less layer 12 discharges the tangent constraint between plate, and linkage interface deformation constraint caused by being releasably bent by beam column is closed
System so that do not re-form rigid domain between beam-column-gusset plate and no longer generate folding active force, increase the bending of beam column component
Computational length avoids beam column that failure by shear occurs, and the rigid domain effect and folding for solving reinforced concrete frame support node are imitated
Answer problem.
(5) folding effect is released, node power transmission is more clear
Tangent constraint may be not present due to only existing Normal Constraint between gusset plate and beam column, realize gusset plate and steel
Reinforced concrete beam column surface only passes effect of the normal force without passing tangential force, and Path of Force Transfer is more clear, and stress mechanical model is more
Clearly, be more convenient for engineers design calculating.
(6) site operation quick assembling
In terms of construction method, sleeve 3 can be welded into prefabricated component with the first side plate 1 (or second side plate 2) in factory, and
Carry out carrying out with beam column built from concrete again after inserting is fixed with the second side plate 2 (or first side plate 1) at the construction field (site) it is cast-in-place, finally again
Gusset plate and beam column are attached by high-strength bolt 4, realize the full prefabricated construction in scene, speed of application is fast and connection is held
It is high to carry power.
Finally it should be noted that:The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations;To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that:Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement;And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of combination anchor slab, which is characterized in that including the first side plate, the second side plate, sleeve and high-strength bolt;
First side plate is both provided with through-hole on the corresponding position of second side plate;The high-strength bolt sequentially passes through institute
State the through-hole on the through-hole, the sleeve and second side plate on the first side plate.
2. combination anchor slab according to claim 1, which is characterized in that further include shear stud;The shear stud difference
It is arranged and corresponds to the side of second side plate in first side plate and second side plate corresponds to the one of first side plate
Side.
3. a kind of anti-buckling support connecting node, which is characterized in that including two gusset plates and three such as claims 1 or 2
The combination anchor slab;
First combination anchor slab is set to the position lower edge of support column connection horizontal beam, the institute of first combination anchor slab
It states high-strength bolt or so and runs through support column;
Second combination anchor slab is set to one end of horizontal beam connection support column, the height of second combination anchor slab
Strength bolt runs through horizontal beam up and down;
The third combination anchor slab is set to the position upper edge of support column connection horizontal beam, the institute of the third combination anchor slab
It states high-strength bolt or so and runs through support column;
First gusset plate is located at the angle of first combination anchor slab and second combination anchor slab;
Second gusset plate is located at the angle of second combination anchor slab and the third combination anchor slab.
4. anti-buckling support connecting node according to claim 3, which is characterized in that the side of first combination anchor slab
Edge is welded in the edge of second combination anchor slab, and the edge of second combination anchor slab is welded in the third combination
The edge of anchor slab.
5. anti-buckling support connecting node according to claim 3, the gusset plate includes central plate and two floors,
It is characterized in that, further includes sliding end plate and backing plate;
The sliding end plate is fixedly welded on the central plate, and the backing plate is located at the side of the sliding end plate;It is described high-strength
Bolt is stretched out from the sleeve, and the sliding end plate and described is sequentially passed through after first side plate or second side plate
Backing plate.
6. anti-buckling support connecting node according to claim 5, which is characterized in that further include adhesive-less layer;
The adhesive-less layer is between the sliding end plate and the backing plate;
And/or
The adhesive-less layer is between first side plate or second side plate and the sliding end plate.
7. anti-buckling support connecting node according to claim 6, which is characterized in that the adhesive-less layer is by butyl rubber
Be made, thickness 1mm, wherein one side with tack and another side without viscosity.
8. a kind of installation method of anti-buckling support connecting node, which is characterized in that include the following steps:
Step 1:Three combination anchor slabs are embedded into support column in advance respectively and connect the position lower edge of horizontal beam, horizontal beam connection branch
One end of dagger connects the position upper edge of horizontal beam with support column;
Step 2:Using high-strength bolt, two gusset plates are separately mounted to first combination anchor slab and second combination anchor slab
Angle, second combination anchor slab and third combine anchor slab angle.
9. it is according to claim 8 it is anti-buckling support connecting node installation method, which is characterized in that step 1 it
Before, it first by sleeve weld on the first side plate, is placed in horizontal beam or support column arrangement, after pouring into concrete, then by sleeve
It is welded and fixed with the second side plate.
10. the installation method of anti-buckling support connecting node according to claim 8, which is characterized in that in step 1,
First side plate and the second side plate are respectively positioned in the profile of horizontal beam or support column, and the first side plate and the second side plate and horizontal beam
Or the outer surface of support column flushes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810666503.0A CN108691358B (en) | 2018-06-26 | 2018-06-26 | Combined anchor plate, buckling restrained brace connecting node and installation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810666503.0A CN108691358B (en) | 2018-06-26 | 2018-06-26 | Combined anchor plate, buckling restrained brace connecting node and installation method thereof |
Publications (2)
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| CN108691358A true CN108691358A (en) | 2018-10-23 |
| CN108691358B CN108691358B (en) | 2024-08-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810666503.0A Active CN108691358B (en) | 2018-06-26 | 2018-06-26 | Combined anchor plate, buckling restrained brace connecting node and installation method thereof |
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| CN110468987A (en) * | 2019-08-08 | 2019-11-19 | 重庆大学 | A kind of novel anti-buckling replaceable connecting node of support-RC frame |
| CN111441472A (en) * | 2020-04-24 | 2020-07-24 | 华南理工大学 | Sliding steel plate embedded part connecting node for buckling restrained brace concrete frame |
| CN111910948A (en) * | 2020-08-21 | 2020-11-10 | 同济大学建筑设计研究院(集团)有限公司 | Shear-resistant reinforcing structure and mounting method thereof |
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|---|---|
| CN108691358B (en) | 2024-08-02 |
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