A kind of supporting bilateral plate node of overhanging cover plate
Technical field
The present invention relates to the supporting bilateral plate node of a kind of overhanging cover plate, be mainly used in building structure many
Layer and the concrete filled steel tube coupled column of skyscraper.
Background technology
Along with economic globalization, the raising of the level of urbanization, urban population closeness is gradually increased so that big
Amount high level continues to bring out.This just high-rise in the urgent need to new technical support and design of tier building and construction.
Concrete filled steel tube utilizes steel pipe and the interaction in loading process of the concrete bi-material, i.e. steel pipe
Concrete is made to be in complex stress condition the effect of contraction of concrete, so that the intensity of concrete is carried
Height, plasticity and toughness greatly improve.Meanwhile, after steel duct fill concrete, due to propping up of concrete
Support effect, can avoid or delay the flexing of steel pipe walls.The combination of bi-material compensate for respective shortcoming,
Material property is given full play to.
Along with development and the growth in the living standard of society, people are to the usable floor area of house and cosmetic requirements
More and more higher.Traditional circle or Concrete Filled Square Steel Tubes post, be generally not capable of being surrounded by body of wall completely,
The most prominent house interior of suspension column, takies certain interior space so that furnishings and room cloth
Put by a definite limitation.Use concrete filled steel rectangular tubes coupled column, can accomplish with wall with wide, solve
The problem that post highlights corner angle.
Research shows, the concrete-filled rectangular steel tube coupled column of general type, the steel pipe constraint to core concrete
Being only limitted to angle point, more weak at periphery, bearing capacity is relatively low.Newel post is the multi-cavity steel tube coagulation of rectangular steel pipe
Local soil type's zygostyle arranges confining part to improve its bearing capacity and energy dissipation capacity at edge, and horizontally set is put more energy into drawknot
Measure, is divided into some chambers by shaft, makes steel plate strengthen the effect of contraction of concrete, reduces steel simultaneously
The flakiness ratio of plate, prevents or delays the cripling of steel plate.
Summary of the invention
It is an object of the invention to provide the combination of a kind of band ribbed stiffener concrete filled steel tube constructing simple, cheap
The supporting bilateral plate node of the overhanging cover plate of post, solves conventional post indoor and highlights the problem of corner angle, improve multi-cavity
The bearing capacity of body concrete filled steel tube coupled column and ductility.Delay or avoid owing to steel pipe wallboard cripling causes
Stiffness of structural member bearing capacity and the reduction of ductility, give full play to the performance of material.Overall structure meets " strong post
Weak beam, the weak component of strong node " design principle, node possesses multiple tracks and provides fortification against earthquakes line, possesses the strong of necessity
Degree, good deformability and energy dissipation capacity.
To achieve these goals, present invention employs following technical scheme:
The supporting bilateral plate node of a kind of overhanging cover plate, including multi-cavity steel tube concrete coupled column, and by two
Block side plate is horizontally fixed on the reinforced H profile steel combination beam of multi-cavity steel tube concrete coupled column side, along described
It is provided with in the support of two pieces of inclined angular distribution between the top of reinforced H profile steel combination beam, two blocks of side plates
Cover plate and support lower cover, supporting square tube horizontal sliding enters described support upper cover plate and supports in lower cover, with reinforcement
Type H profile steel combination beam, multi-cavity steel tube concrete coupled column constitute the supporting bilateral plate node of overhanging cover plate.
Further, described reinforced H profile steel combination beam includes H profile steel, and at the H profile steel end shaped steel wing
The two pieces of ribbed stiffeners arranged between edge, connect along the H profile steel web both sides inside ribbed stiffener and have a pair and H type
The connector that steel edge flushes, is respectively welded upper cover plate and lower cover in H profile steel outside lower flange.
Further, described connector is steel angle structure, bolt hole is distributed on the outer face of angle steel.
Further, the width of described upper cover plate and lower cover is more than the width of lower flange in H profile steel.
Further, described ribbed stiffener is fixed on the web both sides of H profile steel.
Further, described side plate is the rectangular slab being provided with hypotenuse, hypotenuse be located at two pieces be clamped in multi-cavity steel tube mix
The top of the extension of solidifying local soil type zygostyle.
Further, described side plate is provided with the through hole corresponding with connector bolt hole.
Further, described support upper cover plate and support lower cover are that 30 ° of-60 ° of inclinations angle are fixed on two pieces of sides up and down
On plate, wherein, support upper cover plate and support lower cover is that bottom is provided with arcs of recesses groove structure.
Further, the width of described support upper cover plate and support lower cover is more than the width of supporting square tube.
The present invention props up the supporting bilateral plate node of overhanging cover plate can be at the multi-cavity steel tube coagulation supporting horizontal sliding assembling
Local soil type's zygostyle support frame system is applied.
The present invention can obtain following beneficial effect:
1) reinforced H profile steel combination beam is same with plug-in type combined support and multi-cavity steel tube concrete coupled column wide,
Indoor-bollard is avoided to highlight corner angle, it is possible to increase room usable floor area and aesthetic property.
2) reinforced H profile steel combination beam and between dual-sided board preset support upper cover plate and support lower cover, and
Insert supporting square tube, as the edge constraint component of whole steel core concrete column, its bearing capacity and consumption can be improved
Can ability.
3) reinforced H profile steel combination beam and between dual-sided board preset support upper cover plate and support lower cover, then
Overall insertion multi-cavity steel tube concrete coupled column, improves bearing capacity and the ductility of component.Site operation is convenient,
Do not damage multi-cavity steel tube concrete coupled column, save material laborsaving.
4) owing to using multi-cavity steel tube concrete coupled column, steel pipe has stronger effect of contraction, post to concrete
Bearing capacity and ductility that body is overall are relatively good, it is achieved that the design requirement of strong column and weak beam.
5) overall structure meets the design principle of " strong column and weak beam, the weak component of strong node ", and node possesses multiple tracks
Provide fortification against earthquakes line, it is to avoid cause integral system to destroy because partial component destroys, also possess necessary strong simultaneously
Degree, good deformability and energy dissipation capacity.
Accompanying drawing explanation
Fig. 1 is the supporting bilateral plate node supporting bilateral plate node structural representation of the overhanging cover plate of the present invention;
Fig. 2 (a)-(c) is reinforced H profile steel combined beam structure schematic diagram;
Fig. 3 (a)-(c) is to add side plate multi-cavity steel tube concrete composite column structure schematic diagram;
Fig. 4 (a)-(d) is that reinforced H profile steel combination beam and square tube save with multi-cavity steel tube concrete coupled column
Dot structure schematic diagram;
Fig. 5 is that the present invention applies in the multi-cavity steel tube concrete coupled column support frame system supporting horizontal sliding assembling
Schematic diagram;
Fig. 6 be (a)-(c) be beam yield failure process schematic;
Fig. 7 is the hysteresis loop schematic diagram of node.
In figure: 1, multi-cavity steel tube concrete coupled column;2, side plate;3, reinforced H profile steel combination beam;3-1、
H profile steel;3-2, upper cover plate;3-3, ribbed stiffener;3-4, lower cover;3-5, connector;4, in support
Cover plate;5, supporting square tube;6, lower cover is supported.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in further details.
As it is shown in figure 1, the supporting bilateral plate node of the overhanging cover plate of the present invention, including multi-cavity steel tube concrete group
Zygostyle 1, and the reinforced H of multi-cavity steel tube concrete coupled column 1 side it is horizontally fixed on by two blocks of side plates 2
Shaped steel combination beam 3, is provided with two pieces between the top, two blocks of side plates 7 of described reinforced H profile steel combination beam 3
The support upper cover plate 4 of inclined angular distribution and support lower cover 6, supporting square tube 5 inserts described support upper cover
In plate 4 and support lower cover 6, with reinforced H profile steel combination beam 3, multi-cavity steel tube concrete coupled column 1 structure
Become the supporting bilateral plate node of overhanging cover plate.
As shown in Fig. 2 (a)-(c), the reinforced H profile steel combination beam 3 of the present invention, including H profile steel 3-1,
And two pieces of ribbed stiffener 3-3, ribbed stiffener 3-3 of setting are welded between the section steel flange of H profile steel 3-1 end
The web both sides of H profile steel 3-1, be welded with along the H profile steel 3-1 web both sides inside ribbed stiffener 3-3 a pair with
The connector 3-5 that H profile steel 3-1 edge flushes, is respectively welded outside lower flange in H profile steel 3-1
Cover plate 3-2 and lower cover 3-4.Wherein, connector 3-5 is steel angle structure, is distributed on the outer face of angle steel
Bolt hole.The width of described upper cover plate 3-2 and lower cover 3-4 is more than the width of lower flange in H profile steel 3-1.
As shown in Fig. 3 (a)-(c), the multi-cavity steel tube concrete coupled column both sides of the present invention are fixed with side plate 2,
Support upper cover plate 4 and support lower cover 6 is fixed on two blocks of side plates 2 up and down in 30 ° of-60 ° of inclinations angle, wherein,
Support upper cover plate 4 and support lower cover 6 is provided with arcs of recesses groove structure for bottom.Support upper cover plate 4 and support
The width of lower cover 6 is more than the width of supporting square tube 5.
Side plate 2 is provided with the through hole corresponding with connector 3-5 bolt hole.It is easy to and reinforced H profile steel group
Close the fixing connection of beam 3.Side plate 2 is the rectangular slab being provided with hypotenuse, and hypotenuse is located at two pieces and is clamped in multi-cavity steel tube
The top of the extension of concrete combination column 1.
As shown in Fig. 4 (a)-(d), the installation process of the supporting bilateral plate node of the overhanging cover plate of the present invention
As follows:
1) first side plate 2 is positioned in the both sides of multi-cavity steel tube concrete coupled column 1, then use three skirt welderings
Side plate is welded together by angle welding mode with multi-cavity steel tube;
2) two pieces are supported upper cover plate 4-2 and supports lower cover 4-3 according to the angle employing angle welding side set
Formula is connected fixing with biside plate;
3) reinforced H profile steel combination beam 3 good for pre-assembly is inserted between the side plate of both sides, by tightening peace
Reinforced H profile steel combination beam 3 is fixed by dress bolt with biside plate temporarily, then by side plate and upper and lower cover plates and
Connector welds;
4) supporting square tube 5 horizontal sliding inserted two support upper cover plates and supports between lower cover, using fillet welding seam welding
Supporting square tube 5 is connected by the mode that connects with a upper cover plate 4-2 and support lower cover 4-3, completes overhanging cover plate
The installation of supporting bilateral plate node.
Apply at the multi-cavity steel tube coagulation supporting horizontal sliding assembling as it is shown in figure 5, region shown in circle is the present invention
Local soil type's zygostyle support frame system schematic diagram.On the list support this frame system, diagonal brace supports with horizontal beam.
The supporting bilateral plate node of the overhanging cover plate of the present invention can improve its bearing capacity and energy dissipation capacity.Due in advance
On two blocks of side plates 2, first it is provided with support upper cover plate 4 and supports lower cover 6, then by supporting square tube 5 pushing style,
And with insert cant beam (supporting square tube 5) easy construction at the scene, do not damage multi-cavity steel tube concrete coupled column,
Province's material is laborsaving.
Below with multi-cavity steel tube concrete coupled column girder steel U-shaped rigid joint for the row explanation overhanging lid of the present invention
The mechanical property of the supporting bilateral plate node of plate.
Utilizing ABAQUS software that node carries out finite element analysis, node post is that the multi-cavity steel tube of 200x600 mixes
Solidifying local soil type zygostyle, beam uses the welding H-bar of H350x150x6x10, and at node, dual-sided board and cover plate are thick
Degree is all same with flange of beam thick.Shown in Finite element analysis results Fig. 6 (a)-(c).
Owing to using multi-cavity steel tube concrete coupled column, steel pipe has stronger effect of contraction, shaft to concrete
Overall bearing capacity and ductility are relatively good, it is achieved that the design requirement of strong column and weak beam.Multi-cavity steel tube coagulation
The destruction order of local soil type's zygostyle girder steel U-shaped rigid joint is as shown in Fig. 6 (a)-(c) institute.Work as external force action
Time bigger, first the beam-ends A away from node bonding pad occurs shown in plastic hinge Fig. 6 (a), Internal Force Redistribution,
The bearing power increase of structure;Along with the increase of external force, there is plastic hinge Fig. 6 (b) prior to side plate in beam cover plate B
Shown in;Finally destroying as shown in Fig. 6 (c) of structure, beam-ends edge of a wing flexing, side plate upper and lower sides C large area
Surrender, but side plate does not forms plastic hinge, and structure still has certain energy dissipation capacity, meets the weak component of strong node
Design requirement.
The present invention is according to conceptual Design of Earthquake Resistance principle, and structure should possess multiple tracks and provide fortification against earthquakes line, it is to avoid because of part
Component damage and cause integral system to destroy, also require that simultaneously structure should possess necessity intensity, good change
Shape ability and energy dissipation capacity.The supporting bilateral plate node of the overhanging cover plate of the present invention uses multi-cavity steel tube concrete group
Zygostyle girder steel U-shaped rigid joint form, uses the mode of post and beam-ends isolation, by full-height side plate with
And the node connector that cover plate is constituted transmits beam-ends moment of flexure and shearing.When geological process, beam-ends is first
Plastic hinge occurs, consumes certain seismic energy and form first earthquake protection line, back shroud plasticity occurs
Hinge, dissipate seismic energy further, forms second earthquake protection line, and side plate ultimately forms plastic hinge, shape
Become the 3rd road earthquake protection line.Overall structure meets the design principle of " strong column and weak beam, the weak component of strong node ",
The energy-dissipating property of structure is relatively good.As it is shown in fig. 7, the hysteresis loop of node is full, there is no obvious pinch
Phenomenon, the energy dissipation capacity of node is good, and deformation is big, when coming earthquake, allows resident family have more escape time.
Above content is to combine concrete preferred implementation further description made for the present invention, no
Can assert that the detailed description of the invention of the present invention is only limitted to this, for the ordinary skill of the technical field of the invention
For personnel, without departing from the inventive concept of the premise, it is also possible to make some simple reasonings or replacement,
All should be considered as belonging to the present invention and be determined scope of patent protection by the claims submitted to.