CN108661174A - Discontinuous Section Column switching node and its method of construction - Google Patents
Discontinuous Section Column switching node and its method of construction Download PDFInfo
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- CN108661174A CN108661174A CN201810843711.3A CN201810843711A CN108661174A CN 108661174 A CN108661174 A CN 108661174A CN 201810843711 A CN201810843711 A CN 201810843711A CN 108661174 A CN108661174 A CN 108661174A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/246—Post to post connections
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The invention discloses a kind of discontinuous Section Column switching node and methods of construction, including：Node body is the column structure of inner hollow；Cross reinforced concrete column, is connected in the column structure of node body, and the outer rim of the cross reinforced concrete column and the inner wall of column structure connect；Upper end circular cross-section column rebound, is connected to the upper end of node body；Upper end circular cross-section column is connected to the top of the upper end circular cross-section column rebound；Floor I of putting more energy into is connected between upper end circular cross-section column and upper end circular cross-section column rebound；Lower end square section pile rebound, is connected to the lower end of node body；Lower end square section pile is connected to the lower section of lower end square section pile rebound；Floor II of putting more energy into is connected between the lower end square section pile and lower end square section pile rebound.Not only section transitions are good by the present invention, but also avoid the stress concentration phenomenon for only leaning on the excessively discontinuous node steel column of single layer steel plate to occur and generate antidetonation weak part.
Description
Technical field
The invention belongs to technical field of building construction, and in particular to a kind of construction of large-scale discontinuous Section Column switching node
Key Techniques in Construction.
Background technology
In modernization project project construction work progress, steel construction mainly carries out steel member life by factory's production method
Production, not only shortens the engineering construction period, also reduces in Construction Cost in this way so that the economic effect of entire engineering project
Benefit is significantly improved.However, the requirement in modern construction engineering construction to steel structure node design is also higher and higher, especially
The construction quality of the components connecting nodes such as bean column node, special-shaped column, discontinuous Section Column is most important.It therefore, need to be to this
A little node connection types are improved and innovate, and apply in construction, so that the stability of whole building structure and can
It is effectively promoted by property.
Steel structure system has from heavy and light, installation are easy, short construction period, anti-seismic performance are good, gain quick return for investment, environment is dirty
The comprehensive advantages such as few are contaminated compared with reinforced concrete structure, and there are remarkable advantages such as " intensity are high, span is big, light weight ".In recent years
Come, due to the prices of raw materials, environmental protection etc., the situation based on concrete and masonry structure is becoming for a long time
Change, steel construction causes to pay close attention in the industry, be widely applied in engineering with the superiority of its own.Spatial steel structure due to
Its three-dimensional geometry structure can form rational stress morphology, and give full play to the performance of material and have received widespread attention, various shapes
Spatial steel structure of formula such as grid structure, latticed shell structure, tube truss structure etc. continues to bring out, and combination thereof structure is even more pattern
It is various.
Spatial steel structure net rack or reticulated shell, the redundant structure being regularly made of from several directions numerous rod pieces,
Can space structure be widelyd popularize, and key is node, clear, easy for installation, low cost the node of simple structure, stress, just
It is easy to promote in space structure.
Since spatial mesh structure is applied to engineering, has nearly hundred kinds of joint forms and occurred, but with material technology, meter
The development of calculation technology and interconnection technique itself, really in engineering can relatively broad application only more than 10 kinds of joint form.Mesh
The welded hollow spherical joints and bolted spherical node of preceding use are two kinds of highly developed nodes, so being obtained in spatial steel structure
It is widely applied, is secondly plate node and direct junction tubular joint, thus brings the fast development of space structure.
Proved by long-term practice, in steel structure node work progress, the temperature deformation coefficient of construction material with it is mixed
There is prodigious difference for the temperature deformation coefficient of construction material in solidifying geotechnique's journey, when ambient temperature changes, both
The deformation of material is not consistent, this results in node location to generate larger compression and tensile stress, at this point for entire engineering
Construction quality also will result in serious influence.
In general, the temperature deformation coefficient of material is shape and ruler with construction material when frame structure node construction
Very little variation and change, be also under conditions of construction material constant shape, if the size of construction material is continuous at node
Increase, then the temperature varying coefficient of material can also increase therewith, the construction quality at this will be also severely impacted at this time.
The safety of large span spatial structure support column child node is most important.Once failing, linked member will be lost node
Part or all of bearing function causes structural system local failure or, even causing whole system occurs progressive failure.In recent years
Come, the complexity of structural elements node greatly improves, and joint form is complicated.Node is the position that stress is most concentrated in structure, right
It is particularly important in integrally-built safety.
Due to the diversity and complexity of space structure node, design method in existing structure design specification often without
Method covers, and rationally determines the geometric configuration of node, carries out detailed mechanical analysis, needs to carry out model investigation when necessary, is
Ensure structure safely, the key that improves stock utilization, effectively reduce steel using amount.For in the engineering of Kunming southern station, because its
On strong earthquakes band, seismic fortification intensity be 9 degree, while in order to ensure that material performance makes full use of, load-bearing pillar is with floor
Increase section also to change to form discontinuous Section Column therewith, for the bearing capacity and stability of such special segmented column,
It needs to carry out reliable conversion designs at node, and rational arrangement and method for construction is provided.
Invention content
It is excellent it is an object of the invention to solve at least the above and/or defect, and provide at least to will be described later
Point.
In order to realize these purposes and other advantages according to the present invention, a kind of discontinuous Section Column conversion section is provided
Point, including：
Node body is the column structure of inner hollow；The upper end of the node body is circular ring shape, and lower end is side
Shape；
Cross reinforced concrete column, is connected in the column structure of node body, the outer rim and column of the cross reinforced concrete column
The inner wall of body structure connects；
Upper end circular cross-section column rebound, is connected to the upper end of node body；
Upper end circular cross-section column is connected to the top of the upper end circular cross-section column rebound；The upper end circle is cut
Floor I of putting more energy into is connected between face column and upper end circular cross-section column rebound；
Lower end square section pile rebound, is connected to the lower end of node body；
Lower end square section pile is connected to the lower section of the lower end square section pile rebound；Rectangular section of the lower end
Floor II of putting more energy into is connected between face column and lower end square section pile rebound.
Preferably, the node body includes front panel, squab panel, left wall plate, right wall plate connection composition；The antetheca
Plate, squab panel, left wall plate, right wall plate upper end be arc to form the upper end of node body as circular ring shape；The front panel,
Squab panel, left wall plate, right wall plate lower end be linear with the lower end for forming node body be rectangular；The node body
Wall surface is arc.
Preferably, the cross reinforced concrete column include main body trapezoidal plate and be welded on main body trapezoidal plate both sides pair it is trapezoidal
Plate.
Preferably, the main body trapezoidal plate is connected to node by the way that the locating slot on node body inner wall is arranged first
In main body, then it is fixed by welding on node body inner wall.
Preferably, the outer rim of the cross reinforced concrete column and the inner wall of column structure are welded to connect；The upper end is round
Section Column rebound is welded on the upper end of node body；The upper end circular cross-section column is welded on upper end circular cross-section column rebound
Top；Floor I of putting more energy into is welded between the upper end circular cross-section column and upper end circular cross-section column rebound；The lower end is rectangular
Section Column rebound is welded on the upper end of node body；The lower end square section pile is welded on lower end square section pile rebound
Lower section；Floor II of putting more energy into is welded between the lower end square section pile and lower end square section pile rebound.
Preferably, the floor I of putting more energy into is arc-shaped bend batten；The connection type of the arc-shaped bend batten is：
The mounting bar hole of protrusion is provided on the upper end circular cross-section column；It is provided with screw hole I on the mounting bar hole；The upper end circle
Screw hole II is provided on shaped column rebound；One end of the arc-shaped bend batten is inserted into mounting bar hole and passes through screw hole I
It is fixed on the circular cross-section column of upper end with bolt I, the other end is fixedly connected on upper end circular cross-section by screw hole II and bolt II
On column rebound；The company of the crowning and upper end circular cross-section column and upper end circular cross-section column rebound of the arc-shaped bend batten
The place of connecing is provided with high strong spring I.
Preferably, multiple rings are welded and connected in the space that the inside of the cross reinforced concrete column and node body is formed
Shape floor；The outer surface of multiple annular plates is welded to connect with the wall surface of cross reinforced concrete column and the inner wall of node body；
It is welded with high strong spring II in multiple annular plates.
The present invention also provides a kind of methods of construction such as above-mentioned discontinuous Section Column switching node, include the following steps：
Step 1: processing node component, including steel panel, cross reinforced concrete column, upper end circle section needed for node body
Face column rebound, lower end square section pile rebound, put more energy into floor I and floor II of putting more energy into；
Step 2: assembly node, including in the lower end of node body installation lower end square section pile rebound and add first
Strength floor II；Then by the front panel of node body, left wall plate and cross reinforced concrete column positioning welding, and squab panel, the right side are installed
Siding and upper end circular cross-section column rebound；Finally, it is round that upper end is installed on the circular cross-section column rebound of switching node upper end
Section Column, upper end circular cross-section column should connect floor I of putting more energy into upper end circular cross-section column rebound junction；
Step 3: eliminating residual stress, welding residual stress abatement is carried out to node using Vibration aging facture, is put as required
Each vibratory process equipment is set with after auxiliary, the node is placed on bracket, ensures that the compression of vibrating device rubber pad is uniform；Exciting
Device is fixed on fixture above node vibrations end, and acceleration transducer is placed in the steel column below vibrator；
Step 4: lifting node, after the completion of the construction of switching node lower end square section pile, the conversion section after being completed
Point hangs on lower end square-section top end, the lower end square section pile transition of the lower end square section pile and node body lower end
Plate is connected with floor II of putting more energy by welding manner, put more energy into floor II and lower end square section pile rebound and lower end square-section
Contact surface between column should all weld；After being connect with lower end square section pile, the upper end circular cross-section column rebound is put more energy into
Floor I is welded with upper end circular cross-section column, makes to form an entirety up and down.
Preferably, the crisscross joint center of the cross reinforced concrete column and upper end circular cross-section column and rectangular section of lower end
The center of face column is on same vertical line；The welding is using using appropriate small heat input multi-layer welding.
Preferably, in the step 3, welding residual stress abatement is carried out to node using Vibration aging facture, is swept first
Frequently, 2 resonance peaks in vibration amplitude-motor speed curve are obtained；The Asia of the minimum formant be total within the scope of rate into
Row technique is vibrated；Again second of technique vibration is carried out within the scope of the subresonance at the secondary Hyporesonance peak；Frequency sweep again obtains technique
Vibration amplitude afterwards-motor speed curve.
Discontinuous Section Column switching node proposed by the present invention between different cross section column by forming one reliable turn
Change body.This switching node realizes reliable transition by conversion body, to avoid conventional monolayers steel plate conversion connection and occur
Stress concentration phenomenon and generation antidetonation weak part.The switching node can effectively enhance node shear resistance.The weldering of proposition
The construction technologies such as connect also has directive function to the construction of other structures, can effectively instruct engineering, reach and economized on resources, shorten
The purpose of duration.
The present invention includes at least following advantageous effect：
(1) present invention changes the sectional area of top and the bottom column, reduces the consumption of materials of newel post, reduces simultaneously
The gravity of top pillar had not only optimized integrally-built load distribution, but also has saved the unnecessary loss of steel；
(2) present invention realizes factory normalization construction, and all switching node components, which can directly be prefabricated in the factory, to be finished
Then it is transported to scene to be assembled, is advantageously implemented framework design modularization, production industrialization, construction standardization and machinery
Change.Since the globality of the present invention is fabulous, structural seismic performance is greatly improved, people's life's wealth is effectively guaranteed
Production safety；
(3) it is connected facility between process of the present invention, realizes an interchange operation, reduce a large amount of construction personnel,
Cost of labor has been saved, has advantageously reduced building cost, and working efficiency is made to be improved.
Part is illustrated to embody by further advantage, target and the feature of the present invention by following, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Description of the drawings：
Fig. 1 is the overall schematic of the discontinuous Section Column switching node of the present invention；
Fig. 2 is the structural schematic diagram of node body of the present invention；
Fig. 3 is the structural schematic diagram of cross reinforced concrete column of the present invention；
Fig. 4 is the structural schematic diagram of node body of the present invention and cross reinforced concrete column；
Fig. 5 is the structural schematic diagram of the floor I of putting more energy into of another technical solution of the present invention；
Fig. 6 is the structural schematic diagram of the cross reinforced concrete column and node body of another technical solution of the present invention.
Specific implementation mode：
Present invention will be described in further detail below with reference to the accompanying drawings, to enable those skilled in the art with reference to specification text
Word can be implemented according to this.
It should be appreciated that such as " having ", "comprising" and " comprising " term used herein do not allot one or more
The presence or addition of a other elements or combinations thereof.
The invention discloses a kind of discontinuous Section Column switching nodes as shown in figs. 1 to 6, including：
Node body 4 is the column structure of inner hollow；The upper end of the node body 4 is circular ring shape, and lower end is side
Shape；
Cross reinforced concrete column 8 is connected in the column structure of node body 4, the outer rim of the cross reinforced concrete column 8 with
The inner wall of column structure connects；
Upper end circular cross-section column rebound 3, is connected to the upper end of node body 4；
Upper end circular cross-section column 1 is connected to the top of the upper end circular cross-section column rebound 3；The upper end is round
Floor I 2 of putting more energy into is connected between Section Column 1 and upper end circular cross-section column rebound 3；
Lower end square section pile rebound 5, is connected to the lower end of node body 4；
Lower end square section pile 7 is connected to the lower section of the lower end square section pile rebound 5；The lower end is rectangular
Floor II 6 of putting more energy into is connected between Section Column 7 and lower end square section pile rebound 5.
In the above-mentioned technical solutions, by forming a reliable conversion body (node body) between different cross section column,
This switching node realizes reliable transition by conversion body, the stress collection occurred to avoid conventional monolayers steel plate conversion connection
Middle phenomenon and generation antidetonation weak part.The switching node can effectively enhance node shear resistance；The cross steel of use
Bone column can be used for transmitting the load of upper end circular cross-section steel column and ensure the overall stability of switching node；Upper end circular cross-section
Column rebound is the round steel plate of certain size, for connecting upper end circular cross-section column and node body；Lower end square-section
Column rebound (square plate) and floor II of putting more energy into form annular shearing resistance bracket, are connect with lower end square section pile.
In the above-mentioned technical solutions, the node body 4 includes front panel 41, squab panel 42, left wall plate 43, right wall plate 44
Connection composition；The front panel 41, squab panel 42, left wall plate 43, right wall plate 44 upper end be arc to form node body
Upper end be circular ring shape；The front panel 41, squab panel 42, left wall plate 43, right wall plate 44 lower end be linear to form
The lower end of node body is rectangular；The wall surface of the node body is arc；The front panel of the node body, squab panel, a left side
Siding, right wall plate, by numerical control cutting machine blanking machine-shaping, while holding groove successfully as required by general steel plate, and according to curved arc
It is required that drawing bending line of demarcation on the steel plate；When suppressing arc using hydraulic press, need to check whether to press with pattern in compacting
System in place, connects integral finally by welding manner.
In the above-mentioned technical solutions, the cross reinforced concrete column 8 includes main body trapezoidal plate 82 and is welded on main body trapezoidal plate
The secondary trapezoidal plate 81,83 of 82 both sides；The cross reinforced concrete column is that three blocks of trapezoidal steel plates weld assembled star section
Short column, the overall stability of load and guarantee switching node for transmitting upper circular section Steel Column, main body trapezoidal plate and pair
Then trapezoidal plate can be transported to scene directly by numerical control cutting machine blanking machine-shaping and hang on tire together with switching node siding
Frame carries out location and installation welding, and crisscross joint center should be with upper and lower different cross section column on same vertical line when positioning.
In the above-mentioned technical solutions, the main body trapezoidal plate 82 is first by being arranged the positioning on 4 inner wall of node body
Slot is connected in node body 4, is then fixed by welding on node body inner wall；Using this technical solution, can make
The welding manner of cross reinforced concrete column and node body is more firm.
In the above-mentioned technical solutions, the outer rim of the cross reinforced concrete column and the inner wall of column structure are welded to connect；It is described
Upper end circular cross-section column rebound is welded on the upper end of node body；The upper end circular cross-section column is welded on upper end circular cross-section
The top of column rebound；Floor I of putting more energy into is welded between the upper end circular cross-section column and upper end circular cross-section column rebound；It is described
Lower end square section pile rebound is welded on the upper end of node body；The lower end square section pile is welded on lower end square-section
The lower section of column rebound；Floor II of putting more energy into is welded between the lower end square section pile and lower end square section pile rebound；It adopts
With the mode of welding, keep the node to be formed more firm.
In the above-mentioned technical solutions, the floor I 2 of putting more energy into is arc-shaped bend batten；The connection of the arc-shaped bend batten
Mode is：The mounting bar hole 21 of protrusion is provided on the upper end circular cross-section column；It is provided with spiral shell on the mounting bar hole 21
Hole I；It is provided with screw hole II on the upper end circular cross-section column rebound 3；Mounting bar is inserted into one end of the arc-shaped bend batten
It is fixed on upper end circular cross-section column 1 in hole 21 and by screw hole I and bolt I 24, the other end passes through screw hole II and bolt II 32
It is fixedly connected on upper end circular cross-section column rebound 3；The crowning of the arc-shaped bend batten and upper end circular cross-section column 1 and
The junction of upper end circular cross-section column rebound 3 is provided with high strong spring I 25.In this way, arc-shaped bend batten and height
The node component that strong spring is formed, elastic deformation amount is big, and absorption that can be more, failure energy of decaying, survivability is strong, improves
The ultimate strength of node, and simple in structure, good manufacturability, easily fabricated, production cost is low, to serve with vibration and
Building under potential vibration threat use environment provides the technical support of antidetonation.
In the above-mentioned technical solutions, the company of welding in the space that the inside of the cross reinforced concrete column 8 and node body 4 is formed
It is connected to multiple annular plates 9；The outer surface of multiple annular plates 9 and the wall surface of cross reinforced concrete column 8 and node body
Inner wall is welded to connect；It is welded with high strong spring II 91 in multiple annular plates；Using multiple annular plates 9 and high strong spring
II 91, elastic deformation amount is big, and absorption that can be more, failure energy of decaying, survivability is strong, and the limit for improving node is strong
Degree.
Embodiment 1：
A kind of method of construction of above-mentioned discontinuous Section Column switching node, includes the following steps：
Step 1: processing node component, including steel panel (front panel, squab panel, left wall plate, the right side needed for node body
Siding), cross reinforced concrete column, upper end circular cross-section column rebound, lower end square section pile rebound, put more energy into and floor I and put more energy into
Floor II；Node outer steel wall plate (front panel, squab panel, left wall plate, right wall plate) is process by general steel plate；Described ten
Font reinforced concrete column is the short column that three pieces of trapezoidal general steel plate welding are assemblied into star section；The upper end circular cross-section column transition
Plate is the round general steel plate of certain size, for connecting upper end circular cross-section column and node；The lower end square section pile mistake
The square plate of cab apron is connect with lower end square section pile；
Step 2: assembly node, including in the lower end of node body installation lower end square section pile rebound and add first
Strength floor II；Then by the front panel of node body, left wall plate and cross reinforced concrete column positioning welding, and squab panel, the right side are installed
Siding and upper end circular cross-section column rebound；Finally, it is round that upper end is installed on the circular cross-section column rebound of switching node upper end
Section Column, upper end circular cross-section column should connect floor I of putting more energy into upper end circular cross-section column rebound junction；
Step 3: eliminating residual stress, welding residual stress abatement is carried out to node using Vibration aging facture, is put as required
Each vibratory process equipment is set with after auxiliary, the node is placed on bracket, ensures that the compression of vibrating device rubber pad is uniform；Exciting
Device is fixed on fixture above node vibrations end, and acceleration transducer is placed in the steel column below vibrator；
Step 4: lifting node, after the completion of the construction of switching node lower end square section pile, the conversion section after being completed
Point hangs on lower end square-section top end, the lower end square section pile transition of the lower end square section pile and node body lower end
Plate is connected with floor II of putting more energy by welding manner, put more energy into floor II and lower end square section pile rebound and lower end square-section
Contact surface between column should all weld；After being connect with lower end square section pile, the upper end circular cross-section column rebound is put more energy into
Floor I is welded with upper end circular cross-section column, makes to form an entirety up and down；
Wherein, the crisscross joint center of the cross reinforced concrete column and upper end circular cross-section column and lower end square section pile
Center on same vertical line；The welding is using using appropriate small heat input multi-layer welding；
In the step 3, welding residual stress abatement, first frequency sweep are carried out to node using Vibration aging facture, shaken
2 resonance peaks in dynamic amplitude-motor speed curve；Progress technique within the scope of rate is total in the Asia of the minimum formant to shake
It is dynamic；Again second of technique vibration is carried out within the scope of the subresonance at the secondary Hyporesonance peak；Frequency sweep again obtains the vibration after technique
Amplitude-motor speed curve；
In the step 4, before lifting the switching node, copes with hoisting machinery and corresponding lifting program makees sand table and drills
It practises, to prevent that node damage or safety accident occur in the node hoisting process.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily
Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details and legend shown and described herein.
Claims (10)
1. a kind of discontinuous Section Column switching node, which is characterized in that including：
Node body is the column structure of inner hollow；The upper end of the node body is circular ring shape, and lower end is rectangular；
Cross reinforced concrete column, is connected in the column structure of node body, outer rim and the cylinder knot of the cross reinforced concrete column
The inner wall of structure connects；
Upper end circular cross-section column rebound, is connected to the upper end of node body；
Upper end circular cross-section column is connected to the top of the upper end circular cross-section column rebound；The upper end circular cross-section column
Floor I of putting more energy into is connected between the circular cross-section column rebound of upper end；
Lower end square section pile rebound, is connected to the lower end of node body；
Lower end square section pile is connected to the lower section of the lower end square section pile rebound；The lower end square section pile
Floor II of putting more energy into is connected between the square section pile rebound of lower end.
2. discontinuous Section Column switching node as described in claim 1, which is characterized in that the node body includes antetheca
Plate, squab panel, left wall plate, right wall plate connection composition；The front panel, squab panel, left wall plate, right wall plate upper end be arc
To form the upper end of node body as circular ring shape；The front panel, squab panel, left wall plate, right wall plate lower end be linear
Lower end to form node body is rectangular；The wall surface of the node body is arc.
3. discontinuous Section Column switching node as described in claim 1, which is characterized in that the cross reinforced concrete column includes master
Body trapezoidal plate and the secondary trapezoidal plate for being welded on main body trapezoidal plate both sides.
4. discontinuous Section Column switching node as claimed in claim 3, which is characterized in that the main body trapezoidal plate passes through first
The locating slot being arranged on node body inner wall is connected in node body, is then fixed by welding in node body inner wall
On.
5. discontinuous Section Column switching node as described in claim 1, which is characterized in that the outer rim of the cross reinforced concrete column
It is welded to connect with the inner wall of column structure；The upper end circular cross-section column rebound is welded on the upper end of node body；On described
End circular cross-section column is welded on the top of upper end circular cross-section column rebound；The upper end circular cross-section column and upper end circular cross-section
Floor I of putting more energy into is welded between column rebound；The lower end square section pile rebound is welded on the upper end of node body；Under described
End square section pile is welded on the lower section of lower end square section pile rebound；The lower end square section pile and lower end square-section
Floor II of putting more energy into is welded between column rebound.
6. discontinuous Section Column switching node as described in claim 1, which is characterized in that the floor I of putting more energy into is curved bend
Knee plate；The connection type of the arc-shaped bend batten is：The mounting bar of protrusion is provided on the upper end circular cross-section column
Hole；It is provided with screw hole I on the mounting bar hole；It is provided with screw hole II on the upper end circular cross-section column rebound；The arc
One end of bending batten is inserted into mounting bar hole and is fixed on the circular cross-section column of upper end by screw hole I and bolt I, and the other end is logical
It crosses screw hole II and bolt II is fixedly connected on the circular cross-section column rebound of upper end；The crowning of the arc-shaped bend batten with it is upper
The junction of end circular cross-section column and upper end circular cross-section column rebound is provided with high strong spring I.
7. discontinuous Section Column switching node as described in claim 1, which is characterized in that the cross reinforced concrete column and node
It is welded and connected with multiple annular plates in the space that the inside of main body is formed；The outer surface of multiple annular plates and cross
The wall surface of reinforced concrete column and the inner wall of node body are welded to connect；It is welded with high strong spring II in multiple annular plates.
8. a kind of method of construction of such as discontinuous Section Column switching node of claim 2~7 any one of them, feature exist
In including the following steps：
Step 1: processing node component, including the steel panel needed for node body, cross reinforced concrete column, upper end circular cross-section column
Rebound, lower end square section pile rebound, put more energy into floor I and floor II of putting more energy into；
Step 2: assembly node, including lower end square section pile rebound and ribbed stiffener are installed in the lower end of node body first
Plate II；Then by the front panel of node body, left wall plate and cross reinforced concrete column positioning welding, and squab panel, right wall plate are installed
With upper end circular cross-section column rebound；Finally, upper end circular cross-section is installed on the circular cross-section column rebound of switching node upper end
Column, upper end circular cross-section column should connect floor I of putting more energy into upper end circular cross-section column rebound junction；
Step 3: eliminating residual stress, welding residual stress abatement is carried out to node using Vibration aging facture, is placed as required each
Vibratory process is equipped with after auxiliary, and the node is placed on bracket, ensures that the compression of vibrating device rubber pad is uniform；Vibrator is used
Fixture is fixed on above node vibrations end, and acceleration transducer is placed in the steel column below vibrator；
Step 4: lifting node hangs the switching node after being completed after the completion of the construction of switching node lower end square section pile
Upper and lower side square-section top end, the lower end square section pile rebound of the lower end square section pile and node body lower end and
Floor II of putting more energy into is connected by welding manner, put more energy into floor II and lower end square section pile rebound and lower end square section pile it
Between contact surface should all weld；After being connect with lower end square section pile, the upper end circular cross-section column rebound, floor of putting more energy into
I welds with upper end circular cross-section column, makes to form an entirety up and down.
9. the method for construction of discontinuous Section Column switching node as claimed in claim 8, which is characterized in that the cross steel
The crisscross joint center of bone column is with the center of upper end circular cross-section column and lower end square section pile on same vertical line；Institute
Welding is stated using using appropriate small heat input multi-layer welding.
10. the method for construction of discontinuous Section Column switching node as claimed in claim 8, which is characterized in that the step 3
In, welding residual stress abatement, first frequency sweep are carried out to node using Vibration aging facture, it is bent to obtain vibration amplitude-motor speed
2 resonance peaks in line；It is total to progress technique vibration within the scope of rate in the Asia of the minimum formant；Again in the secondary Hyporesonance
Second of technique vibration is carried out within the scope of the subresonance at peak；Frequency sweep again obtains the vibration amplitude after technique-motor speed curve.
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| CN110735479A (en) * | 2019-11-13 | 2020-01-31 | 浙江东南网架股份有限公司 | Steel casting based on additive manufacturing reinforcement and machining method thereof |
| CN111088850A (en) * | 2019-12-31 | 2020-05-01 | 江苏沪宁钢机股份有限公司 | Horseshoe-shaped node and manufacturing method thereof |
| CN113305507A (en) * | 2021-05-21 | 2021-08-27 | 浙江东南网架股份有限公司 | Method for processing welded box with fillet |
| WO2022142765A1 (en) * | 2020-12-29 | 2022-07-07 | 江苏沪宁钢机股份有限公司 | Steel column with cross-shaped connecting section connected to round pipe and manufacturing method therefor |
| CN114753561A (en) * | 2022-03-24 | 2022-07-15 | 同圆设计集团股份有限公司 | Conversion node, conversion system and use method |
| CN115354760A (en) * | 2022-08-18 | 2022-11-18 | 中铁二院工程集团有限责任公司 | Conversion node of round steel pipe column in cross column concrete column |
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