CN105863081A - Multi-cavity concrete filled steel tube combination column and steel beam bolt joint and assembly method - Google Patents
Multi-cavity concrete filled steel tube combination column and steel beam bolt joint and assembly method Download PDFInfo
- Publication number
- CN105863081A CN105863081A CN201610343502.3A CN201610343502A CN105863081A CN 105863081 A CN105863081 A CN 105863081A CN 201610343502 A CN201610343502 A CN 201610343502A CN 105863081 A CN105863081 A CN 105863081A
- Authority
- CN
- China
- Prior art keywords
- steel
- plate
- cavity
- tube concrete
- coupled column
- Prior art date
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 216
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- 230000015271 coagulation Effects 0.000 claims description 3
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- 238000009434 installation Methods 0.000 abstract description 10
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- 238000010586 diagrams Methods 0.000 description 7
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Classifications
-
- 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
- E04B1/30—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts being composed of two or more materials; Composite steel and concrete constructions
Abstract
The invention relates to a multi-cavity concrete filled steel tube combination column and steel beam bolt joint and an assembly method. The multi-cavity concrete filled steel tube combination column and steel beam bolt joint comprises steel plates arranged at the two sides of a multi-cavity concrete filled steel tube combination column, and a first ear plate is arranged at the top of each steel plate; an upper cover plate is arranged on the top flange of a steel beam, and a second ear plate is arranged at the bottom of the bottom flange of the steel beam; two connecting angles are arranged at the web plate of the steel beam, and the upper cover plate is connected with the first ear plate; the second ear plate is connected with the steel plate. The joint provided by the invention has high degree of assembly, and the multi-cavity concrete filled steel tube combination column, the steel plates, the steel beam, the upper cover plate, the second ear plate and the connecting angles are prefabricated in the factory, so that the workload of welding of installation is reduced, and the positioning assembly is only needed in on-site installation. The joint is simple in form, quick and convenient to install and has high degree of assembly. Since the traditional penetration welding is avoided during on-site installation, and the greater welding residual stress on steel products is easily generated by the traditional penetration welding, the steel products at the joint are easily laminated or brittlely fractured.
Description
Technical field
The present invention relates to the multi-cavity steel tube concrete composite column structure system of a kind of construction engineering technical field, be specifically related to one many
Chamber concrete filled steel tube coupled column and girder steel bolt connection node and assembly method.
Background technology
Multi-cavity steel tube concrete coupled column combined structure system solves as a kind of novel concrete filled steel tube composite column structure system
The problem of suspension column evagination in dwelling house system, the most this new structural systen has given full play to steel pipe and the length of concrete bi-material
Place, has bearing capacity height, plasticity and the advantage such as good toughness, easy construction.
At present China " rectangular steel tube with concrete infilled technical regulation " (GECS159:2004) provide for steel tube concrete local soil type
Zygostyle steel beam joint is mainly by the node of the form such as internal partition formula, outer shroud be board-like.But up to the present, in prior art, steel pipe mixes
Solidifying local soil type zygostyle is connected with steel beam joint and has the disadvantage that
(1), when the edge of a wing of the internal partition in connection with inner diaphragm and beam is in same level, node meets the requirement of rigid joint,
But this node could use when tubing string limit is longer.Because not only weld difficulty when the length of side is less, and mixed in would interfere with pipe
Solidifying soil pours, and additionally flange of beam produces bigger welding residual stress with internal partition at post jamb same place both sides melt-through weld, steel,
The steel at node are made easily to produce layering or brittle break.
(2) architectural appearance and use are affected.Such as outer ring plate node, this node construction is simple, power transmission clear and definite, not by steel pipe limit
Long restriction, but need sufficiently large horizontal ring flat-plate to ensure the intensity of node, steel using amount is bigger than inner diaphragm joint.And it is applied to limit
During corner post, horizontal ring flat-plate not only hinders the installation of wallboard, and causes reinforcing ring to highlight elevation of building so that at indoor and outdoor node
There is salient angle, affect perception, need to solve by decoration or furred ceiling.
(3) node mechanical property and the simplification of construction, economy can not be satisfactory to both parties.In actual applications, some node type power
Learn better performances, the integral rigidity of node, but material usage is big, construction complexity.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, it is provided that a kind of multi-cavity steel tube concrete coupled column and girder steel bolt connection node and
Assembly method, by use beam-ends and post jamb fate from and full-height side plate, meet setting of " strong column and weak beam, the weak component of strong node "
Meter principle, joint structure is simple, and power transmission is clear and definite, and assembling degree is high.
For achieving the above object, the present invention is achieved through the following technical solutions.
Multi-cavity steel tube concrete coupled column and girder steel bolt connection node, including being arranged on multi-cavity steel tube concrete coupled column both sides
Steel plate, each steel plate top is provided with the first otic placode, and girder steel top flange is provided with upper cover plate, is provided with the second ear bottom lower flange
Plate, is provided with two angle cleats, upper cover plate and the first otic placode and connects at the web of girder steel, the second otic placode is connected with steel plate.
Described multi-cavity steel tube concrete coupled column includes the sleeper being positioned at two ends, is provided with parallel web between two sleeper,
Connected by dividing plate between web.
Described steel plate is arranged on multi-cavity steel tube concrete coupled column by weld seam.
Described upper cover plate is connected with steel plate by bolt.
Described first otic placode is connected with steel plate by angle welding, and the second otic placode is connected with girder steel lower flange by angle welding.
All offer locating holes on each steel plate, angle cleat is offered porose, by bolt, steel plate and angle cleat are fixed.
Described girder steel is steel I-beam.
Described steel I-beam end is provided with ribbed stiffener.
A kind of multi-cavity steel tube concrete coupled column and the assembly method of girder steel bolt connection node, be first fixed on steel plate by weld seam
Multi-cavity steel tube concrete coupled column both sides, then at each steel plate welded top the first otic placode, obtain prefabricated multi-cavity steel tube coagulation
Local soil type's zygostyle；Steel I-beam top flange arranges upper cover plate, steel I-beam lower flange is welded the second otic placode, by two connections
Angle steel is arranged at steel I-beam web, obtains prefabricated girder steel；Then by prefabricated multi-cavity steel tube concrete coupled column and
Girder steel transports scene, by concreting in multi-cavity steel tube concrete coupled column, then is hung from the top down by prefabricated girder steel
Install to node region so that upper cover plate and the contact of the first otic placode, then use bolt to be fixed with upper cover plate by the first otic placode, will even
Connect angle steel and Interal fixation, by the second otic placode and Interal fixation, complete assembling.
Compared with prior art, beneficial effects of the present invention is embodied in:
(1) present invention is by arranging the first otic placode on the steel plate of coupled column both sides, arranges upper cover plate in girder steel top flange, at steel
Lower flange of girder edge arranges the second otic placode, is connected by upper cover plate and the first otic placode, and the second otic placode is connected with steel plate, multi-cavity steel tube coagulation
Earth pillar is unique, owing to beam-ends separates and full-height with post jamb with girder steel dual-sided board rigid connection node connected mode and mode of transfer force
The use of side plate.Physical isolation between beam, post changes the Path of Force Transfer of conventional node, eliminates triaxial stress and concentrates, no
It is only capable of making plastic hinge be moved on on beam by outside node, and eliminates the edge of a wing tear failure of conventional node post and joint rotation ability pair
The defect of the dependence in column web weakness plate district.Meet design and the principle of " strong column and weak beam, the weak component of strong node ".
(2) due to the use of full-height steel plate, multi-cavity steel tube concrete combination shaft keeps integrity so that steel pipe inner concrete
Pour convenient, be easily guaranteed that the pouring quality of nodes domains concrete.
(3) upper cover plate, the second otic placode and angle cleat are only passed through due to girder steel by moment of flexure Shear transfer to dual-sided board (i.e. steel plate),
Girder steel can be separated with styletable, decrease the clear span of girder steel, steel depth of beam can be reduced to a certain extent, meet house
User's demand to residential function.
(4) the node assemblingization degree of the present invention is high, multi-cavity steel tube concrete coupled column, steel plate, girder steel, upper cover plate, second
Otic placode and angle cleat all can be prefabricated in the factory, and reduce the welding job amount installed, and in-site installation only need to position assembling.Joint
Point form is simple, and assemblingization degree is high, quick and easy for installation.Avoid using traditional penetration weld during due to in-site installation, tradition
Penetration weld easily makes steel produce bigger welding residual stress so that the steel at node easily produce layering or brittle break.
All using high-strength bolt to connect during node in-site installation of the present invention, assemblingization degree is high, and node connects reliable.
Further, owing to side plate and concrete filled steel tube coupled column post jamb the most outside are by solder design, do not have inside concrete filled steel tube
Having weld seam, compared with conventional node, this joint structure is simple, reasonable stress.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of prefabricated multi-cavity steel tube concrete coupled column；
Fig. 2 is the schematic diagram of prefabricated girder steel.
Fig. 3 is the assembling schematic diagram of the present invention.
Fig. 4 is surrender schematic diagram in lower flange on beam.
Fig. 5 is that beam-ends plastic hinge schematic diagram occurs.
Fig. 6 is that cover plate destroys schematic diagram.
Fig. 7 is for finally destroying schematic diagram.
Fig. 8 is hysteresis loop figure.
In figure, 1 is multi-cavity steel tube concrete coupled column, and 2 is girder steel, and 3 is steel plate, and 4 is upper cover plate, and 5 is the first otic placode, 6
For angle cleat, 7 is bolt, and 8 is the second otic placode.
Detailed description of the invention
Below in conjunction with the accompanying drawings embodiments of the invention are elaborated: the present embodiment premised on technical solution of the present invention under carry out
Implement, give detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Seeing Fig. 3, the present invention includes the steel plate 3 being arranged on multi-cavity steel tube concrete coupled column both sides, and i.e. 2 steel plates are arranged on many
Concrete filled steel tube coupled column both sides, chamber, each steel plate 3 top is provided with the first otic placode 5, and the first otic placode 5 is by angle welding and steel
Plate 3 connects, and steel plate 3 is arranged on multi-cavity steel tube concrete coupled column by weld seam.
Girder steel top flange is provided with upper cover plate 4, and upper cover plate 4 is connected with steel plate 3 by angle welding, upper cover plate 4 and the first otic placode 5
Connected by bolt 7, be provided with the second otic placode 8 bottom girder steel lower flange, and the second otic placode 8 is by under angle welding and girder steel
The edge of a wing is connected；It is provided with two angle cleats 6 at the web of girder steel, angle cleat 6 is connected with steel plate 3 by bolt, adopts
With bolt 7, second otic placode 8 is connected with steel plate.In the present invention, girder steel is by upper cover plate, the first ribs, the second ribs even
It is connected to the overhanging end of the steel plate 3 of multi-cavity steel tube concrete coupled column both sides.
In the present invention, multi-cavity steel tube concrete coupled column includes the sleeper being positioned at two ends, is provided with parallel abdomen between two sleeper
Plate, is connected by dividing plate between web, and concreting is wherein.
All offer locating holes on each steel plate 3, angle cleat 6 is offered porose, by bolt 7 through determining on steel plate
Hole in position perforate and angle cleat, fixes steel plate and angle cleat.
Described girder steel is steel I-beam, and girder steel end is provided with ribbed stiffener.
Above-mentioned multi-cavity steel tube concrete coupled column and the assembly method of girder steel bolt connection node, see Fig. 1, press at steel plate in advance
According to Design Orientation perforate, then steel plate 3 is fixed on multi-cavity steel tube concrete coupled column both sides by weld seam, then at each steel plate top
Portion arranges the first otic placode 5, obtains prefabricated multi-cavity steel tube concrete coupled column；See Fig. 2, first offer on angle cleat 6
Hole, then upper cover plate 4 is welded on the steel I-beam top flange with ribbed stiffener, steel I-beam lower flange arranges second
Two angle cleats 6 are arranged at steel I-beam web, obtain prefabricated girder steel by otic placode 8；See Fig. 3, then will be pre-
The multi-cavity steel tube concrete coupled column made and girder steel transport scene, by concreting in multi-cavity steel tube concrete coupled column,
Again prefabricated girder steel is lifted into node region from the top down so that upper cover plate 4 contacts with the first otic placode 5, then uses and add
First otic placode 5 is fixed by strength bolt 7 with upper cover plate 4, is fixed with steel plate 3 by angle cleat 6, by the second otic placode 8 and steel plate
3 fix, and complete assembling.
The present invention can be prefabricated in the factory steel plate according to positioning welding in multi-cavity steel tube concrete coupled column both sides, and often
Individual steel plate 3 top arranges the first otic placode.First prefabricated girder steel, upper cover plate and angle cleat in factory, then will in factory
Upper cover plate is welded in girder steel top flange according to design size and according to design size, the second otic placode is welded on girder steel lower flange, will be even
Connecing angle steel welding according to location dimension at steel beam web plate, said process is all the most prefabricated in the factory, saves scene
The inconvenience made, improves efficiency.During in-site installation, girder steel is lifted from top to bottom and is positioned node region, angle cleat and
The steel plate of multi-cavity steel tube concrete coupled column both sides is connected by high-strength bolt, the position of fixing girder steel.
Node of the present invention has two innovations greatly: beam-ends and post jamb fate from and the use of full-height side plate.Physics between beam, post every
From changing the Path of Force Transfer of conventional node, eliminate triaxial stress and concentrate, can not only make plastic hinge by moving on on beam outside node,
And eliminate the edge of a wing tear failure of conventional node post and the joint rotation ability defect to the dependence in column web weakness plate district.Meet
The design of " strong column and weak beam, the weak component of strong node " and principle.Node can be divided into 2 parts to be prefabricated in the factory respectively simultaneously,
In-site installation only need to simply assemble, and joint structure simply assembling degree is high.
Below the failure mode of the present invention and the anti-seismic performance of node are illustrated.
The mechanical property being now row explanation novel joint with multi-cavity steel tube concrete coupled column girder steel U-shaped rigid joint.Utilize
ABAQUS software carries out finite element analysis to node, and node post is the multi-cavity steel tube concrete coupled column of 200x600, and beam uses
The welding H-bar of H350x150x6x10, at node, dual-sided board and cover sheet thickness are all same with flange of beam thick.Finite element analysis is tied
Fruit is as follows.
1. failure mode
The multi-cavity steel tube concrete coupled column girder steel rigid connection node of the present invention, owing to using multi-cavity steel tube concrete coupled column,
Steel pipe has stronger effect of contraction to concrete, and bearing capacity and ductility that shaft is overall are relatively good, it is achieved that strong column and weak beam,
The design requirement of the strong weak component of node.The destruction order connecting node of the present invention is as Figure 4-8.(1) make when horizontal external
Used time, on node region beam-ends, lower flange initially enters plasticity, and cover plate and side plate are in addition to small part region of stress concentration is surrendered,
Remaining major part region steel is still in elastic stage (as shown in Figure 4).(2) increasing along with external force, beam-ends is prior to other parts
First plastic hinge (as shown in Figure 5) occur, now deck portion region steel surrender enters the plastic stage, and side plate is except small part
Area of stress concentration is overseas, and major part region steel are still in elastic stage.(3) due to the invigoration effect of steel material, external force is worked as
When load persistently increases, cover plate both sides are surrendered with side plate join domain steel plate shearing, and steel enter plasticity stage, this time
Point side plate major part region is still in elastic stage, and only small part stress raiser steel plate surrenders (as shown in Figure 6).(4) as
Shown in Fig. 7, along with being continuously increased of load, structure is finally destroyed, now lower flange flexing on beam-ends, and side plate still only has portion
Dividing and enter the plastic stage, the side plate major part of node region is still in elastic stage.
2. the anti-seismic performance of node
According to conceptual Design of Earthquake Resistance principle, structure should possess multiple tracks and provide fortification against earthquakes line, it is to avoid cause entirety because partial component destroys
System is destroyed, and also requires that structure should possess intensity, good deformability and the energy dissipation capacity of necessity simultaneously.The rigidity of the present invention
Connecting node, use the mode of post and beam-ends isolation, the node connector consisted of full-height side plate and cover plate carrys out transfer beams
End moment of flexure and shearing.
Due to above-mentioned destruction order, when geological process, first beam-ends there is plastic hinge, consumes certain seismic energy, it
Back shroud shear yielding, dissipate seismic energy further, and when finally destroying, the simply part surrender of node region side plate enters plasticity,
Major part is still in elastic stage.Overall structure meets the design principle of " strong column and weak beam, the weak component of strong node ".
Before ductility refers to structure or destroys, its bearing capacity is without standing inelastic deformation ability under conditions of significantly reducing, in structure
Aseismic Design in, Ductility Index is a key property.The layer of multi-cavity steel tube concrete coupled column girder steel U-shaped rigid joint
Between angle of displacement be 7% 10%, meet China's code requirement.
When structure is in geological process, structure has an energy absorption and the time-continuing process of dissipation.When structure enters elastoplasticity shape
During state, its anti-seismic performance depends primarily on component energy dissipation capacity.The area that in hysteresis loop, load phase curve is surrounded can be anti-
Reflect structure and absorb the size of energy；And the area that curve when unloading and curve when loading are surrounded is dissipation energy.These energy
Amount is the interior frictional resistance by material or local damage and energy becomes heat energy dissipation in space.The energy scattered and disappeared is the most, knot
The probability that structure destroys is the least.Due to above-mentioned destruction of a node order, beam-ends and cover plate successively dissipate a large amount of seismic energy,
Ensure node eventually has preferable energy dissipation capacity.As shown in Figure 8, the hysteresis loop of node is full, does not has obvious pinch existing
As, dissipate a large amount of seismic energy, and the energy dissipation capacity of node is good, has stronger anti-seismic performance.
Claims (9)
1. multi-cavity steel tube concrete coupled column and girder steel bolt connection node, it is characterised in that include being arranged on multi-cavity steel tube coagulation
The steel plate (3) of local soil type's zygostyle both sides, each steel plate (3) top is provided with the first otic placode (5), and girder steel top flange is provided with upper cover
Plate (4), is provided with the second otic placode (8) bottom lower flange, be provided with two angle cleats (6), upper cover plate at the web of girder steel
(4) being connected with the first otic placode (5), the second otic placode (8) is connected with steel plate (3).
Multi-cavity steel tube concrete coupled column the most according to claim 1 and girder steel bolt connection node, it is characterised in that institute
State multi-cavity steel tube concrete coupled column and include being positioned at the sleeper at two ends, between two sleeper, be provided with parallel web, web it
Between connected by dividing plate.
Multi-cavity steel tube concrete coupled column the most according to claim 1 and girder steel bolt connection node, it is characterised in that institute
State steel plate (3) to be arranged on multi-cavity steel tube concrete coupled column by weld seam.
Multi-cavity steel tube concrete coupled column the most according to claim 1 and girder steel bolt connection node, it is characterised in that institute
State upper cover plate (4) to be connected with steel plate (3) by bolt.
Multi-cavity steel tube concrete coupled column the most according to claim 1 and girder steel bolt connection node, it is characterised in that institute
Stating the first otic placode (5) to be connected with steel plate (3) by angle welding, the second otic placode (8) is connected with girder steel lower flange by angle welding.
Multi-cavity steel tube concrete coupled column the most according to claim 1 and girder steel bolt connection node, it is characterised in that every
All offer locating holes on individual steel plate (3), angle cleat (6) is offered porose, by bolt (7) by steel plate and connection
Angle steel is fixed.
Multi-cavity steel tube concrete coupled column the most according to claim 1 and girder steel bolt connection node, it is characterised in that institute
Stating girder steel is steel I-beam.
Multi-cavity steel tube concrete coupled column the most according to claim 7 and girder steel bolt connection node, it is characterised in that institute
State steel I-beam end and be provided with ribbed stiffener.
9. a multi-cavity steel tube concrete coupled column and the assembly method of girder steel bolt connection node, it is characterised in that first by steel plate
(3) it is fixed on multi-cavity steel tube concrete coupled column both sides by weld seam, then at each steel plate welded top the first otic placode (5),
To prefabricated multi-cavity steel tube concrete coupled column；Steel I-beam top flange arranges upper cover plate (4), steel I-beam lower flange
Two angle cleats (6) are arranged at steel I-beam web, obtain prefabricated girder steel by upper welding the second otic placode (8)；So
After prefabricated multi-cavity steel tube concrete coupled column and girder steel are transported to scene, by concreting in multi-cavity steel tube concrete group
In zygostyle, more prefabricated girder steel is lifted into node region from the top down so that upper cover plate (4) connects with the first otic placode (5)
Touch, then use bolt (7) to be fixed with upper cover plate (4) by the first otic placode (5), by angle cleat (6) and steel plate (3)
Fixing, the second otic placode (8) is fixed with steel plate (3), completes assembling.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610343502.3A CN105863081B (en) | 2016-05-20 | 2016-05-20 | Multi-cavity steel tube concrete coupled column and girder steel bolt connection node and assembly method |
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| CN201610343502.3A CN105863081B (en) | 2016-05-20 | 2016-05-20 | Multi-cavity steel tube concrete coupled column and girder steel bolt connection node and assembly method |
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| CN108193771A (en) * | 2018-03-20 | 2018-06-22 | 辽宁工程技术大学 | A kind of assembling rectangular steel-tube concrete column-girder steel partition board perforation node |
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| CN105863081B (en) | 2018-07-10 |
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