CN105239675A - Concrete filled steel tube transfer joint structure and construction method thereof - Google Patents

Concrete filled steel tube transfer joint structure and construction method thereof Download PDF

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Publication number
CN105239675A
CN105239675A CN201510725519.0A CN201510725519A CN105239675A CN 105239675 A CN105239675 A CN 105239675A CN 201510725519 A CN201510725519 A CN 201510725519A CN 105239675 A CN105239675 A CN 105239675A
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rib plate
inner rib
section
floor
batter post
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CN105239675B (en
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左志亮
蔡健
杨春
陈庆军
姜正荣
刘达鑫
张成天
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South China University of Technology SCUT
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South China University of Technology SCUT
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Abstract

The invention discloses a concrete filled steel tube transfer joint structure and a construction method thereof. The concrete filled steel tube transfer joint structure comprises a strut, a batter post and a socket frame; the batter post is fixedly connected to the socket frame; the socket frame is fixedly arranged inside the strut and located at a top end of the strut; the socket frame comprises a vertical inner ribbed plate; the batter post is provided with a section including a cross section; a shape of the vertical rib ribbed plate corresponds to a shape of the cross section and a connecting ribbed plate extends out of the vertical inner ribbed plate; the connecting ribbed plate extending out is fixedly connected to an inner wall of the strut; the batter post is fixed on the vertical inner ribbed plate through the section. The concrete filled steel tube transfer joint structure is integrated with the advantages of a concrete-filled steel tube and a battery post transfer structure, and has the advantages of direct force transfer, high bearing capacity, small sectional dimension of the component, good utilization of building space, no need for support formwork, small field welding workload, guaranteed construction quality and the like. Two batter posts and a beam system form a triangular force transfer mode, and meanwhile, excellent side force resisting capability is realized.

Description

A kind of concrete filled steel tube switching node structure and construction method thereof
Technical field
The present invention relates to a kind of building switching node structure and construction method thereof, be specifically related to a kind of concrete filled steel tube switching node structure and construction method thereof.
Background technology
Along with Function and form constantly past diversified future development that is high-rise, super highrise building, the application of conversion layer is also more and more extensive.Inclined column transfer structure has translation building block, and it mainly bears axial load, has the advantages that Path of Force Transfer is short, translation building block sectional dimension is less, is conducive to the use of architectural space, is thus with a wide range of applications.In addition, because translation building block mainly bears axial load, so be applicable to adopting concrete filled steel tubular member.Concrete filled steel tubular member size is less than conventional steel bar concrete component, and save template, do not need assembling reinforcement, construction speed is fast, construction quality is guaranteed.When the batter post of inclined column transfer structure and pillar all adopt concrete filled steel tubular member, be called concrete filled steel tube inclined column transfer structure.Node is as the significant points in concrete filled steel tube inclined column transfer structure, and the achievement in research of its mechanical property and building method is few, becomes the bottleneck of restriction concrete filled steel tube inclined column transfer structure application.
According to the difference of translation building block type, existing inclined column transfer structure node is mainly divided into Reinforced Concrete Transferring Joints with Inclined Columns, steel reinforced concrete Transferring Joints with Inclined Columns and concrete filled steel tube Transferring Joints with Inclined Columns three types.
1. translation building block is the Transferring Joints with Inclined Columns of reinforced concrete member
Batter post and pillar are reinforced concrete member, and the reinforcing bar of batter post, pillar, building roof beam is intersected in Nodes, and node area concrete once waters and is pounded shape.The internal force of batter post, building roof beam is directly passed to node area by reinforcing bar and concrete, is then passed to pillar, the good integrity of node.But, Shortcomings in actual applications, is mainly:
(1) sectional dimension of members is large, affects the use of architectural space.The load that superstructure of bearing batter post in inclined column transfer structure transmits, internal force is comparatively large, and larger with the inclination angle of vertical direction larger batter post internal force.The bearing capacity of reinforced concrete member is lower, and in order to meet the requirement of safety, the sectional dimension of batter post and the volume of node are all comparatively large, by the inconvenience that the minimizing and pipeline that cause transfer floor building usage space are passed through.
(2) node construction difficulty is large.Although the globality of Reinforced Concrete Transferring Joints with Inclined Columns is better, the reinforcing bar of many batter posts, pillar, building roof beam collects in node area, anchoring, and node area reinforcing bar is intensive, colligation is difficult, and construction quality is difficult to ensure card.Node area volume is large, and casting and compacting of concrete density is difficult to ensure card, and waters that heat of hydration when smashing is high, thermal stresses is comparatively large, and it is unfavorable that fracture controls.In addition, concrete structure construction process need form erecting operation, the duration is longer.
2. translation building block is the Transferring Joints with Inclined Columns of Steel Reinforced Concrete Members
Batter post and pillar are Steel Reinforced Concrete Members, and reinforcing bar, the shaped steel of batter post, pillar, building roof beam are intersected in Nodes, and node area concrete once waters and is pounded shape.The internal force of batter post, building roof beam is directly passed to node area by shaped steel, reinforcing bar and concrete, is then passed to pillar, the good integrity of node.
The translation building block of this type node adopts steel reinforced concrete, and section ratio reinforced concrete member is little, is conducive to the use of architectural space.But, Nodes has the reinforcing bar of the shaped steel of many batter posts, pillar and reinforcing bar and building roof beam to collect, and node area reinforcing bar is intensive, colligation is difficult, and difficulty of construction is large, and quality is difficult to ensure card.
3. translation building block is the Transferring Joints with Inclined Columns of concrete filled steel tubular member
Batter post and pillar all adopt concrete filled steel tube, and building roof beam generally adopts girder steel or girder with rolled steel section en cased in concrete, and beam is identical with general Concrete-filled tubular connections with the connected mode of node.Vertical load is by the connection transmission of batter post and pillar, and beam-ends moment of flexure is transmitted by node internal partition or outer annular-stiffer, and Shear force within the beam end is transmitted by the connection of web and pillar or batter post steel pipe.The concrete filled steel tube inclined column transfer structure applied in engineering mainly contains following three types, respectively has pluses and minuses:
(1) batter post and pillar pass through formula node mutually.Batter post and pillar can adopt rectangle and circle tee section steel core concrete column respectively, also can all adopt circular cross-section steel core concrete column, lower to the requirement of member section shape.Pillar side opening hole, batter post passes through mutually with pillar from pillar side and is connected, and node area establishes internal partition or outer ring plate, and building roof beam to be connected with pillar in node area or to be directly connected with batter post, the concrete of batter post, node, pillar once or segmentation water and smash.
Pillar side punches and weakens Post sections, and causes the stress distribution of passing through region mutually complicated.Batter post internal force, based on axle power, when transmission internal force is to pillar from the side, produce level to shearing component, and pillar passes through the vertical shearing component at interface mutually with batter post to pillar.Level is born to the internal partition of shearing component by Post sections shear-carrying capacity or node area, vertical shearing component is born by steel pipe seam and the anti-shear concrete intensity of passing through interface mutually, Path of Force Transfer is comparatively clear and definite, but power transmission unit is many, cause node area stress distribution complicated, easily forms plane of weakness.Be positioned at conplane building roof beam with batter post to be connected with batter post, can not be directly connected with pillar, the indefinite of node region power transmission will be caused further.If node area connects different directions building roof beam by outer ring plate, node area scope will be made greatly to increase, affect architectural appearance and use.
(2) batter post and pillar dock node.The type node is only applicable to the situation that batter post and pillar all adopt concrete filled steel rectangular tubes post, and generally only connects 2 batter posts.Pillar cross sectional area is equal with total cross sectional area bottom two batter post intersections, batter post lower end is docked with pillar each limit steel plate and is welded, batter post intersection is all welded with vertical baffle, vertical baffle welds with inside pillar steel pipe, node area establishes internal partition or outer ring plate, building roof beam is connected with pillar in node area, the concrete of batter post, node, pillar once or segmentation water and smash.Batter post internal force by docking steel pipe and concrete directly transmit, in the beam-ends of building roof beam, power transfer mode is identical with common steel tube concrete joint.
The type node guarantee integrality of pillar, Path of Force Transfer is simple, clear and definite.But, when adopting this connected mode, can only adopt concrete filled steel rectangular tubes component, and the effect of restraint of rectangular steel pipe to core concrete is poor, economic benefit is lower.
(3) establish batter post and the pillar plug-in type node of internal partition, batter post and pillar adopt rectangle and circle tee section steel core concrete column respectively.The steel plate lower end of two batter posts is welded with the vertical baffle side overhanging from node area respectively, dock with the upper end of the vertical floor of node area and weld; Vertical baffle and vertical floor are welded to each other, and lower end is all welded with lower internal partition; Node area bottom flange At The Height on corresponding building roof beam arranges upper and lower twice internal partition and outer annular-stiffer respectively; Building roof beam is connected with pillar in node area; The concrete of batter post, node, pillar can once or segmentation water and smash.Batter post end and beam-ends moment of flexure are by internal partition, outer ring plate transmission, and batter post vertical load is passed to node area by vertical baffle and floor, then is passed to pillar by lower internal partition and concrete with the form of local pressure.
The type node guarantee integrality of pillar, can realize the connection of square-section batter post and circular cross-section pillar, thus does not affect top-out usage space, improves the supporting capacity of pillar, and Path of Force Transfer is simple, clear and definite.But, joint cores is provided with upper and lower internal partition, and welding job amount is comparatively large, and when Post sections size is less, welding procedure and casting and compacting of concrete difficulty, construction quality is difficult to ensure.
Summary of the invention
For the technical problem existed in prior art, the object of the invention is: a kind of concrete filled steel tube switching node structure is provided.
Another object of the present invention is: provide a kind of concrete filled steel tube switching node construction method.
Object of the present invention is achieved through the following technical solutions: a kind of concrete filled steel tube switching node structure, and comprise pillar, batter post and bearing frame, described batter post is fixedly connected on bearing frame, and described bearing frame is fixedly installed on pillar inside and is positioned at the top of pillar.
Preferably, described bearing frame comprises perpendicular inner rib plate, batter post has cross section, cross section comprises cross section, the shape that perpendicular inner rib plate is formed is corresponding with shape of cross section and be extended with connection floor, the connection floor stretched out is fixedly attached on the inwall of pillar, and batter post is fixed on perpendicular inner rib plate by cross section.
Preferably, described bearing frame is also provided with the protrusion that top stretches out in outside pillar and erects inner rib plate, described cross section also comprises vertical section, protrude perpendicular inner rib plate to be fixedly connected with perpendicular inner rib plate, perpendicular inner rib plate shape is corresponding with shape of cross section and cross section is fixed on perpendicular inner rib plate, and vertical section is fixedly connected with the perpendicular inner rib plate of protrusion.
Preferably, also comprise outer annular-stiffer and lower outer annular-stiffer, upper outer annular-stiffer and lower outer annular-stiffer are fixedly attached in the outside wall surface of post top portion respectively.
Preferably, between described upper outer annular-stiffer and lower outer annular-stiffer, be provided with linking floor, be connected rib edges edge and be separately fixed on outer annular-stiffer, the outside wall surface of pillar and lower outer annular-stiffer.
Preferably, described batter post is two and is rectangle batter post, the cross section of two batter posts surrounds a rectangle tangent plane, the vertical section of batter post comprises two vertical tangent planes and a upper vertical section, described perpendicular inner rib plate surrounds a rectangle junction, described protrusion erects the middle part that inner rib plate is arranged at rectangle junction, and rectangle tangent plane is fixedly connected in rectangle junction, and the vertical tangent plane of two batter posts and upper vertical section are fixed on and protrude on perpendicular inner rib plate two sides.
Preferably, described bearing frame has following two kinds of set-up modes:
Mode one: described connection floor comprises first floor and first convex sheet integrated with perpendicular inner rib plate, described perpendicular inner rib plate comprises two long floors and two short floors, two long floors be arranged in parallel, two short floors are fixed between two long floors and two long floor both ends and stretch out described first convex sheet of formation, first floor is separately fixed on long floor and/or short floor lateral surface, and the first convex sheet and first floor are fixedly attached on the inwall of pillar respectively;
Mode two: described connection floor comprises second floor and inner rib plate integrated second convex sheet perpendicular with protrusion, described perpendicular inner rib plate comprises two the first floors and four the second floors, four the second floors two are on one group of two sides being fixedly installed on the perpendicular inner rib plate of protrusion respectively, two first floors are fixed with two second floors often organized respectively, the part that four the second floors stretch out in the first floor forms described second floor, second convex sheet stretches out in perpendicular inner rib plate, and second floor and the second convex sheet are fixedly attached on the inwall of pillar respectively.
Preferably, described batter post is two and is circular batter post, the cross section of batter post is arc cross section, the cross section of two batter posts surrounds a circular arc tangent plane, the vertical section of batter post is arc vertical tangent plane, and described perpendicular inner rib plate surrounds a circular arc junction, and described protrusion erects the middle part that inner rib plate is arranged at circular arc junction, arc cross section is fixedly attached in circular arc junction, and the arc vertical tangent plane of two batter posts is fixedly attached to respectively and protrudes on perpendicular inner rib plate two sides; Connection floor is fixedly connected on and surrounds on the perpendicular inner rib plate lateral surface of circular arc junction, connects floor external part and is fixedly attached on the inwall of pillar.
Preferably, the mouth of pipe medium dip of described batter post lower end is provided with deep floor, and described deep floor offers irrigation hole.
A kind of concrete filled steel tube switching node construction method, cuts the mouth of pipe of batter post pending connection position, cuts out cross section and vertical section respectively;
Perpendicular inner rib plate is made into the shape identical with batter post cross section and is extended with connection floor, again by protrude perpendicular inner rib plate be arranged on perpendicular inner rib plate surround the middle part of shape, be welded on the inwall of pillar by the connection floor stretched out, described protrusion erects inner rib plate top and stretches out in outside pillar;
Pillar is docked with bottom steel core concrete column, and concreting is to node area;
Be welded to perpendicular inner rib plate by batter post hoisted in position and by cross section and vertical section and protrude on perpendicular inner rib plate;
After node area and pillar concrete setting, build the concrete of batter post part.
The present invention has following advantage and effect relative to prior art:
1, the present invention combines the advantage of concrete filled steel tube and inclined column transfer structure, has that power transmission is direct, bearing capacity is high, sectional dimension of members is little, is conducive to the utilization of architectural space, without the need to formwork and the advantage such as Site Welding workload is few, construction quality is guaranteed.Two batter posts and girder system constitute triangle power transmission pattern, have good lateral resisting ability simultaneously.
2, the present invention can realize the connection of square-section batter post and circular cross-section pillar.Superstructure adopts square-section batter post, does not affect building usage space.Substructure adopts circular cross-section pillar, and steel pipe is large to the effect of contraction of core concrete, effectively improves bearing capacity and the anti-seismic performance of pillar.In addition, substructure post, apart from usually comparatively large, adopts the adverse effect of circular cross-section post to building usage space less.
3, the present invention can realize the connection of circular cross-section batter post and circular cross-section pillar.The present invention adopts circular cross-section pillar, and steel pipe is large to the effect of contraction of core concrete, effectively improves bearing capacity and the anti-seismic performance of pillar.
4, power transmission unit of the present invention is few, power transmission is clear and definite, solve and pass through that formula rectangle or circular cross-section batter post and circular cross-section pillar switching node power transmission unit are many, the indefinite problem of power transmission mutually, also solve that welding job amount when arranging lower internal partition is comparatively large simultaneously, the problem of welding and casting and compacting of concrete difficulty.Concrete, bearing frame is by protruding perpendicular inner rib plate with perpendicular inner rib plate forms because concrete can pass from protruding the perpendicular space surrounded between inner rib plate and perpendicular inner rib plate easily, not to concrete water to smash produce obstruction; Batter post of the present invention and pillar adopt plug-in type to be connected, and batter post end moment of flexure and vertical internal force are directly passed to pillar by perpendicular inner rib plate, the perpendicular inner rib plate of protrusion and concrete, and beam-ends moment of flexure is by upper outer annular-stiffer and lower outer annular-stiffer transmission.
5, batter post intersection is established and is protruded perpendicular inner rib plate, can improve the bearing capacity of batter post intersection, effectively transmits batter post end internal force, does not also affect concrete watering and smash.
6, perpendicular inner rib plate is set in node area and protrudes perpendicular inner rib plate, enhance the effect of contraction of node area inner concrete, be conducive to improving core space concrete crushing strength, make the rigidity of node area larger.
7, put rigidity greatly by arranging floor, upper outer annular-stiffer and lower outer annular-stiffer envoy, and node can be connected with the building roof beam of any direction, the flexible arrangement of beam, the requirement of the building function that is content with very little.
Accompanying drawing explanation
Fig. 1 is the sectional view of the embodiment of the present invention one.
Fig. 2 is the sectional view of A-A in Fig. 1.
Fig. 3 is the explosive view of the bearing frame of set-up mode one of the present invention.
Fig. 4 is upper outer annular-stiffer of the present invention, relation schematic diagram installed by linking floor, lower outer annular-stiffer and pillar.
Fig. 5 is the deep floor of the embodiment of the present invention one and the installation relation schematic diagram of batter post.
Fig. 6 be bearing frame with upper outer annular-stiffer be housed, be connected floor, the installation relation schematic diagram of the pillar of lower outer annular-stiffer.
The embodiment of the present invention one has been equipped with the batter post of deep floor and the installation relation schematic diagram of bearing frame by Fig. 7.
Fig. 8 is the schematic diagram that the batter post of the embodiment of the present invention one to be installed to after bearing frame disturbing concrete in batter post again.
Fig. 9 is the explosive view of the bearing frame of set-up mode two of the present invention.
Figure 10 is the structural representation of the bearing frame of set-up mode two of the present invention.
Figure 11 is the schematic diagram that the batter post of the embodiment of the present invention one is fixed by the bearing frame of set-up mode two.
Figure 12 is the bearing frame of the embodiment of the present invention two and the annexation schematic diagram of pillar.
Figure 13 is the deep floor of the embodiment of the present invention two and the installation relation schematic diagram of batter post.
Figure 14 is the batter post of the embodiment of the present invention two and the installation relation schematic diagram of bearing frame.
Figure 15 is that the batter post of the embodiment of the present invention two to be installed to after bearing frame again in batter post and the schematic diagram of disturbing concrete.
Figure 16 is the sectional view of the concrete filled steel tube switching node structure of the embodiment of the present invention four.
Figure 17 is the sectional view of C-C in Figure 16.
Figure 18 be the embodiment of the present invention four upper outer annular-stiffer, be connected floor, lower outer annular-stiffer, lower internal partition and pillar relation schematic diagram is installed.
Figure 19 is the installation relation schematic diagram of the upper internal partition of the embodiment of the present invention four, bearing frame and pillar.
Figure 20 is the upper internal partition of the embodiment of the present invention four, bearing frame is installed in pillar and the schematic diagram of disturbing concrete.
Figure 21 is the structural representation of the embodiment of the present invention four.
Figure 22 be the embodiment of the present invention five upper outer annular-stiffer, be connected floor, lower outer annular-stiffer, lower internal partition and pillar relation schematic diagram is installed.
Figure 23 is the installation relation schematic diagram of the upper internal partition of the embodiment of the present invention five, bearing frame and pillar.
Figure 24 is the upper internal partition of the embodiment of the present invention five, bearing frame is installed in pillar and the schematic diagram of disturbing concrete.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment one:
A kind of concrete filled steel tube switching node structure, comprise pillar 61, batter post and bearing frame 63, described batter post is fixedly connected on bearing frame, and described bearing frame is fixedly installed on pillar inside and is positioned at the top of pillar.
Preferably, described bearing frame comprises perpendicular inner rib plate 64, batter post has cross section, cross section comprises cross section 65, the shape that perpendicular inner rib plate is formed is corresponding with shape of cross section and be extended with connection floor, the connection floor stretched out is fixedly attached on the inwall of pillar, and batter post is fixed on perpendicular inner rib plate by cross section.Preferably, perpendicular inner rib plate end face and pillar either flush.
Preferably, described bearing frame is also provided with the top protrusion stretched out in outside pillar and erects inner rib plate 67, described cross section also comprises vertical section, protrude perpendicular inner rib plate to be fixedly connected with perpendicular inner rib plate, perpendicular inner rib plate shape is corresponding with shape of cross section and cross section is fixed on perpendicular inner rib plate, and vertical section is fixedly connected with the perpendicular inner rib plate of protrusion.
Preferably, also comprise outer annular-stiffer 69 and lower outer annular-stiffer 70, upper outer annular-stiffer and lower outer annular-stiffer are fixedly attached in the outside wall surface of post top portion respectively.
Preferably, be provided with between described upper outer annular-stiffer and lower outer annular-stiffer and be connected floor 71, be connected rib edges edge and be separately fixed on outer annular-stiffer, the outside wall surface of pillar and lower outer annular-stiffer.The quantity being connected floor can be 4, can be connected with the building roof beam 66 of any direction easily with lower outer annular-stiffer by linking floor, upper outer annular-stiffer.
Preferably, described batter post is two and is rectangle batter post 62, the cross section of two batter posts surrounds a rectangle tangent plane, the vertical section of batter post comprises two vertical tangent planes 72 and a upper vertical section 73, described perpendicular inner rib plate surrounds a rectangle junction, described protrusion erects the middle part that inner rib plate is arranged at rectangle junction, and rectangle tangent plane is fixedly connected in rectangle junction, and the vertical tangent plane of two batter posts and upper vertical section are fixed on and protrude on perpendicular inner rib plate two sides.
Preferably, described bearing frame has following two kinds of set-up modes:
Mode one: described connection floor comprises first floor 74 and first convex sheet 75 integrated with perpendicular inner rib plate, described perpendicular inner rib plate comprises two long floors 76 and two short floors 77, two long floors be arranged in parallel, two short floors are fixed between two long floors and two long floor both ends and stretch out described first convex sheet of formation, first floor is separately fixed on long floor and/or short floor lateral surface, and the first convex sheet and first floor are fixedly attached on the inwall of pillar respectively;
Mode two: described connection floor comprises second floor 78 and inner rib plate integrated second convex sheet 79 perpendicular with protrusion, described perpendicular inner rib plate comprises two the first floors 80 and four the second floors 81, four the second floors two are on one group of two sides being fixedly installed on the perpendicular inner rib plate of protrusion respectively, two first floors are fixed with two second floors often organized respectively, the part that four the second floors stretch out in the first floor forms described second floor, second convex sheet stretches out in perpendicular inner rib plate, second floor and the second convex sheet are fixedly attached on the inwall of pillar respectively.
Preferably, the mouth of pipe medium dip of described batter post lower end is provided with deep floor 82, described deep floor offers irrigation hole 83, and the benefit arranging irrigation hole facilitates concrete flowing through.
Preferably, the cross section of batter post comprises two cross sections 41 and a lower vertical section 42.
Preferably, described deep floor top is fixedly attached to the inner side of vertical section, and deep floor bottom is fixedly attached to the inner side of lower vertical section, and the deep floor left and right sides is fixedly attached on batter post internal face respectively.
The course of work of the present invention and operating principle: realize by following technical measures: section bearing capacity, restriction steel plate generation cripling that the deep floor offering irrigation hole can improve batter post intersecting area are set in the two batter post lower end mouths of pipe, and do not affect that batter post is concrete builds; Two batter post lower ends respectively with the perpendicular inner rib plate of joint cores with protrude perpendicular inner rib plate and be connected, can effectively by batter post and concrete Stress transmit to node area; Perpendicular inner rib plate in node area and the perpendicular inner rib plate of protrusion weld mutually in intersection and form one, and by bearing frame and pillar steel-pipe welding, thus the internal force of batter post is passed to pillar by perpendicular inner rib plate and the combination of protruding perpendicular inner rib plate; Weld outer annular-stiffer and lower outer annular-stiffer respectively at the upper bottom flange At The Height of corresponding building roof beam, transmit the moment of flexure also constraint of increase to node area of building roof beam; The shearing of building roof beam is passed to node by the linking floor between upper outer annular-stiffer and lower outer annular-stiffer.
Embodiment two:
The present embodiment and embodiment one difference are: described batter post is two and is circular batter post 84, the cross section of batter post is arc cross section, the cross section of two batter posts surrounds a circular arc tangent plane, the vertical section of batter post is arc vertical tangent plane, described perpendicular inner rib plate surrounds a circular arc junction 85, described protrusion erects the middle part that inner rib plate is arranged at circular arc junction, and arc cross section is fixedly attached in circular arc junction, and the arc vertical tangent plane of two batter posts is fixedly attached to respectively and protrudes on perpendicular inner rib plate two sides; Connection floor is fixedly connected on and surrounds on the perpendicular inner rib plate lateral surface of circular arc junction, connects floor external part and is fixedly attached on the inwall of pillar.
Described perpendicular inner rib plate can be that two arcs erect inner rib plate 86, and the opening that two arcs erect inner rib plate respectively inner rib plate perpendicular with protrusion is fixedly connected with.
Embodiment three:
A kind of concrete filled steel tube switching node construction method, cuts the mouth of pipe of batter post pending connection position, cuts out cross section and vertical section respectively;
Perpendicular inner rib plate is made into the shape identical with batter post cross section and is extended with connection floor, again by protrude perpendicular inner rib plate be arranged on perpendicular inner rib plate surround the middle part of shape, be welded on the inwall of pillar by the connection floor stretched out, described protrusion erects inner rib plate top and stretches out in outside pillar;
Pillar is docked with bottom steel core concrete column, and disturbing concrete is to node area;
Be welded to perpendicular inner rib plate by batter post hoisted in position and by cross section and vertical section and protrude on perpendicular inner rib plate;
After node area and pillar concrete setting, water the concrete smashing batter post part.
Embodiment four:
A kind of concrete filled steel tube switching node structure, comprise pillar, batter post and for batter post being connected to the bearing frame on pillar, batter post has cross section, cross section comprises cross section, and described bearing frame is fixedly installed on pillar inside and is positioned at the top of pillar, and bearing frame comprises lower internal partition 1 and perpendicular inner rib plate, described perpendicular inner rib plate is fixedly installed on lower internal partition, wherein, perpendicular inner rib plate shape is corresponding with batter post shape of cross section, and batter post is fixed on perpendicular inner rib plate by cross section.
Preferably, described bearing frame is also provided with the protrusion that top stretches out in outside pillar and erects inner rib plate, described cross section also comprises vertical section, protruding perpendicular inner rib plate is fixed on lower internal partition, perpendicular inner rib plate shape is corresponding with shape of cross section and cross section is fixed on perpendicular inner rib plate, and vertical section is fixedly connected with the perpendicular inner rib plate of protrusion.
Preferably, described bearing frame is also provided with internal partition 2, connector 3 is offered in the middle part of upper internal partition, connector is fixedly attached on perpendicular inner rib plate top exterior walls face, upper internal partition outward flange is fixedly attached on the internal wall of pipe orifice face of pillar, described lower internal partition offers the first irrigation hole 4, be fixedly attached on lower internal partition bottom perpendicular inner rib plate, lower internal partition outward flange is fixedly attached on the internal face of pillar;
Also comprise outer annular-stiffer and lower outer annular-stiffer, upper outer annular-stiffer and lower outer annular-stiffer respectively corresponding position of going up internal partition and lower internal partition are fixedly attached in the outside wall surface of pillar.
Preferably, described lower internal partition evenly offers multiple first air vent, described multiple first air vent is arranged around the first irrigation hole respectively; Described upper internal partition offers the second irrigation hole 5 and multiple even the second air vent arranged around the second irrigation hole, arranging the first air vent can when by the first irrigation hole concrete perfusion, gas can be facilitated to discharge, full concrete is all filled by inner for pillar, avoid occurring can not discharging due to air and the phenomenon that causes filling concrete not in place, as: after having poured into concrete, still there is the phenomenon in room in lower internal partition lower position, in like manner, arranging the second air vent is also to reach above-mentioned similar effect, no longer describing at this.
Preferably, be provided with floor between described upper outer annular-stiffer and lower outer annular-stiffer, rib edges edge is separately fixed on outer annular-stiffer, the outside wall surface of pillar and lower outer annular-stiffer.The quantity of floor can be 4, can be connected with the building roof beam of any direction easily with lower outer annular-stiffer by floor, upper outer annular-stiffer.
Preferably, described batter post is two and is rectangle batter post, the cross section of two batter posts surrounds a rectangle tangent plane, the vertical section of batter post comprises two vertical tangent planes and a upper vertical section, described perpendicular inner rib plate surrounds a rectangle junction, described protrusion erects the middle part that inner rib plate is arranged at rectangle junction, and rectangle tangent plane is fixedly connected in rectangle junction, and the vertical tangent plane of two batter posts and upper vertical section are fixed on the two sides of the perpendicular inner rib plate of protrusion.The cross section of batter post comprises two cross sections and a lower vertical section.
Preferably, perpendicular inner rib plate comprises polylith, and polylith erects inner rib plate and protrudes between perpendicular inner rib plate and surrounds the structure that is " day " font, protrudes perpendicular inner rib plate and is then positioned at centre.
Embodiment five:
The present embodiment and embodiment four difference are: described batter post is two and is circular batter post, the cross section of batter post is arc cross section, the cross section of two batter posts surrounds a circular arc tangent plane, the vertical section of batter post is arc vertical tangent plane, described perpendicular inner rib plate surrounds a circular arc junction, described protrusion erects the middle part that inner rib plate is arranged at circular arc junction, and arc cross section is fixedly attached in circular arc junction, and the arc vertical tangent plane of two batter posts is fixedly attached to respectively and protrudes on perpendicular inner rib plate two sides.Described perpendicular inner rib plate can be that two arcs erect inner rib plate, and the opening that two arcs erect inner rib plate respectively inner rib plate perpendicular with protrusion is fixedly connected with.
Above-described embodiment is the present invention's preferably embodiment; but embodiments of the present invention are not restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.

Claims (10)

1. a concrete filled steel tube switching node structure, is characterized in that: comprise pillar, batter post and bearing frame, and described batter post is fixedly connected on bearing frame, and described bearing frame is fixedly installed on pillar inside and is positioned at the top of pillar.
2. concrete filled steel tube switching node structure according to claim 1, it is characterized in that: described bearing frame comprises perpendicular inner rib plate, batter post has cross section, cross section comprises cross section, the shape that perpendicular inner rib plate is formed is corresponding with shape of cross section and be extended with connection floor, the connection floor stretched out is fixedly attached on the inwall of pillar, and batter post is fixed on perpendicular inner rib plate by cross section.
3. concrete filled steel tube switching node structure according to claim 2, it is characterized in that: described bearing frame is also provided with the protrusion that top stretches out in outside pillar and erects inner rib plate, described cross section also comprises vertical section, protrude perpendicular inner rib plate to be fixedly connected with perpendicular inner rib plate, perpendicular inner rib plate shape is corresponding with shape of cross section and cross section is fixed on perpendicular inner rib plate, and vertical section is fixedly connected with the perpendicular inner rib plate of protrusion.
4. concrete filled steel tube switching node structure according to claim 1, is characterized in that: also comprise outer annular-stiffer and lower outer annular-stiffer, and upper outer annular-stiffer and lower outer annular-stiffer are fixedly attached in the outside wall surface of post top portion respectively.
5. concrete filled steel tube switching node structure according to claim 4, it is characterized in that: between described upper outer annular-stiffer and lower outer annular-stiffer, be provided with linking floor, be connected rib edges edge and be separately fixed on outer annular-stiffer, the outside wall surface of pillar and lower outer annular-stiffer.
6. concrete filled steel tube switching node structure according to claim 3, it is characterized in that: described batter post is two and is rectangle batter post, the cross section of two batter posts surrounds a rectangle tangent plane, the vertical section of batter post comprises two vertical tangent planes and a upper vertical section, described perpendicular inner rib plate surrounds a rectangle junction, described protrusion erects the middle part that inner rib plate is arranged at rectangle junction, rectangle tangent plane is fixedly connected in rectangle junction, and the vertical tangent plane of two batter posts and upper vertical section are fixed on and protrude on perpendicular inner rib plate two sides.
7. concrete filled steel tube switching node structure according to claim 6, is characterized in that: described bearing frame has following two kinds of set-up modes:
Mode one: described connection floor comprises first floor and first convex sheet integrated with perpendicular inner rib plate, described perpendicular inner rib plate comprises two long floors and two short floors, two long floors be arranged in parallel, two short floors are fixed between two long floors and two long floor both ends and stretch out described first convex sheet of formation, first floor is separately fixed on long floor and/or short floor lateral surface, and the first convex sheet and first floor are fixedly attached on the inwall of pillar respectively;
Mode two: described connection floor comprises second floor and inner rib plate integrated second convex sheet perpendicular with protrusion, described perpendicular inner rib plate comprises two the first floors and four the second floors, four the second floors two are on one group of two sides being fixedly installed on the perpendicular inner rib plate of protrusion respectively, two first floors are fixed with two second floors often organized respectively, the part that four the second floors stretch out in the first floor forms described second floor, second convex sheet stretches out in perpendicular inner rib plate, and second floor and the second convex sheet are fixedly attached on the inwall of pillar respectively.
8. concrete filled steel tube switching node structure according to claim 3, it is characterized in that: described batter post is two and is circular batter post, the cross section of batter post is arc cross section, the cross section of two batter posts surrounds a circular arc tangent plane, the vertical section of batter post is arc vertical tangent plane, described perpendicular inner rib plate surrounds a circular arc junction, described protrusion erects the middle part that inner rib plate is arranged at circular arc junction, arc cross section is fixedly attached in circular arc junction, and the arc vertical tangent plane of two batter posts is fixedly attached to respectively and protrudes on perpendicular inner rib plate two sides; Connection floor is fixedly connected on and surrounds on the perpendicular inner rib plate lateral surface of circular arc junction, connects floor external part and is fixedly attached on the inwall of pillar.
9. concrete filled steel tube switching node structure according to claim 1, is characterized in that: the mouth of pipe medium dip of described batter post lower end is provided with deep floor, and described deep floor offers irrigation hole.
10. a concrete filled steel tube switching node construction method, it is special is:
The mouth of pipe of batter post pending connection position is cut, cuts out cross section and vertical section respectively;
Perpendicular inner rib plate is made into the shape identical with batter post cross section and is extended with connection floor, again by protrude perpendicular inner rib plate be arranged on perpendicular inner rib plate surround the middle part of shape, be welded on the inwall of pillar by the connection floor stretched out, described protrusion erects inner rib plate top and stretches out in outside pillar;
Pillar is docked with bottom steel core concrete column, and concreting is to node area;
Be welded to perpendicular inner rib plate by batter post hoisted in position and by cross section and vertical section and protrude on perpendicular inner rib plate;
After node area and pillar concrete setting, build the concrete of batter post part.
CN201510725519.0A 2015-10-29 2015-10-29 A kind of concrete filled steel tube switching node structure and its construction method Active CN105239675B (en)

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CN106368322A (en) * 2016-09-27 2017-02-01 北京市机械施工有限公司 Installing method of bidirectional symmetric oblique steel posts used between super high-rise building transfer stories
CN113216379A (en) * 2021-05-25 2021-08-06 宜宾学院 Basalt fiber concrete profiled steel structure
CN113374083A (en) * 2021-05-24 2021-09-10 哈尔滨工业大学 Node structure of steel-recycled concrete composite beam and circular steel tube high-strength concrete column and construction method thereof

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CN113216379B (en) * 2021-05-25 2023-01-31 宜宾学院 Basalt fiber concrete profiled steel structure

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