CN106320374B - A kind of subway station steel pipe column and its construction technology - Google Patents
A kind of subway station steel pipe column and its construction technology Download PDFInfo
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- CN106320374B CN106320374B CN201610791707.8A CN201610791707A CN106320374B CN 106320374 B CN106320374 B CN 106320374B CN 201610791707 A CN201610791707 A CN 201610791707A CN 106320374 B CN106320374 B CN 106320374B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
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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
- E04B1/0007—Base structures; Cellars
- E04B1/0015—Cellars constructed from prefabricated units
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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
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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
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/003—Injection of material
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0026—Metals
- E02D2300/0029—Steel; Iron
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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
- E04B2001/2415—Brackets, gussets, joining plates
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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
- E04B2001/2445—Load-supporting elements with reinforcement at the connection point other than the connector
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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
- E04B2001/2463—Connections to foundations
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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
- E04B2001/2484—Details of floor panels or slabs
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Abstract
The invention discloses a kind of subway station steel pipe column and its construction technologies, steel pipe column includes steel pipe support column, the interior joint being laid in the middle part of steel pipe support column construction and the lower node construction for being laid in steel pipe support column lower part, interior joint construction includes round tray of the coaxial package on steel pipe support column, middle plate-girder is supported on round tray, round tray is located at below middle plate-girder, and round tray is installed on steel pipe support column and steel pipe support column therefrom passes through in plate-girder；Lower node construction includes upper reinforcing structure, middle reinforcing structure and the lower reinforcing structure from top to bottom laid, and upper reinforcing structure, middle reinforcing structure and lower reinforcing structure are poured in bottom plate；The construction technology is comprising steps of one, pore digging；Two, steel pipe column hoisting；Three, filling concrete.The present invention has rational design and easy construction, using effect are good, and energy is easy, the work progress of steel pipe column in subway station, and the steel pipe column good mechanical performance of construction molding is rapidly completed.
Description
Technical field
The invention belongs to metro station construction technical fields, more particularly, to a kind of subway station steel pipe column and its construction
Technique.
Background technique
Subway station is a kind of important building in Urban Rail Transit, it is for passenger's boarding, transfer and time
The place of vehicle.Cap excavation method be when underground engineering is bright do when the Novel engineering that needs the barriers such as highway crossing, building and take apply
Work method will be top closed after being specifically excavated to certain depth downwards by ground, remaining lower part engineering is in closed top cover
Under construct.Main structure inverse can also be made along work.Using cap excavation method in the upper subway station of lower soft formation construction firmly
When, difficulty of construction is larger.When such as constructing to the May Fourth Square station for being located at Qingdao City, construction area locating for the station be for
Upper firmly lower soft formation, the top on the stratum is soil layer and its underpart is basement rock, and the top plate above thickness of earth covering in station is about 5.3 meters,
The following foundation depth of top plate is about 13 meters, and foundation pit width is 45.8 meters, quick-fried 90,000 m of the cubic meter of stone to be drilled3.Also, to the subway station base
Before hole carries out excavation construction, for the stability for ensuring station main structure, the middle part of main structure is applied from front to back AT STATION
More steel pipe columns of work.Nowadays, when constructing to steel pipe column in subway station, none unified, standard and specification are applied
Work method is inevitably present that constructing operation is more casual, construction efficiency is low, construction is complete for following, during practice of construction
At steel pipe column using effect it is poor the problems such as.
Summary of the invention
In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is that providing a kind of subway
Station steel pipe column, simple structure and reasonable design and easy construction, using effect are good, and construction quality is easy to guarantee.
In order to solve the above technical problems, the technical solution adopted by the present invention is that: a kind of subway station steel pipe column,
It is characterized by comprising the steel pipe support columns being located in constructed subway station, the interior joint being laid in the middle part of steel pipe support column
The lower node construction of steel pipe support column lower part is constructed and is laid in, the steel pipe support column is arranged vertically；Constructed subway
The main structure at station includes bottom plate, two side walls being laid in above at left and right sides of bottom plate respectively, right above bottom plate
Top plate and a middle plate being laid between the top plate and bottom plate, the left and right two of the bottom plate, the top plate and the middle plate
Side is connected as one with the side wall；The top and the bottom of the steel pipe support column are separately fixed on the top plate and bottom plate, institute
The middle plate-girder being provided in plate in horizontal layout is stated, the middle plate-girder is carried out along the transverse width direction of constructed subway station
It lays, the bottom plate, the middle plate and middle plate-girder are reinforced concrete structure；The interior joint construction includes that coaxial package exists
Round tray on steel pipe support column, the round tray are in horizontal layout, and the middle plate-girder is supported on round tray, described
Round tray is located at below middle plate-girder, and the round tray is installed on steel pipe support column, the steel pipe support column therefrom plate-girder
Inside pass through；The lower node construction includes upper reinforcing structure, middle reinforcing structure and the lower reinforcing structure from top to bottom laid, described
Upper reinforcing structure is symmetrically arranged with lower reinforcing structure, and the upper reinforcing structure, middle reinforcing structure and lower reinforcing structure pour
In in bottom plate；The upper reinforcing structure include it is multiple it is along the circumferential direction uniformly distributed on steel pipe support column lateral wall on put more energy into
Part, multiple upper stiffeners are laid in same level；The middle reinforcing structure includes multiple along the circumferential direction uniform
The middle stiffener being laid on steel pipe support column lateral wall, multiple middle stiffeners are laid in same level；It is described
Lower reinforcing structure includes multiple along the circumferential direction uniformly distributed lower stiffeners on steel pipe support column lateral wall, it is multiple it is described under
Stiffener is laid in same level.
Above-mentioned subway station steel pipe column, it is characterized in that: the round tray is weldingly fixed on steel pipe support column.
Above-mentioned subway station steel pipe column, it is characterized in that: the steel pipe support column bottom stretches to the basement rock below bottom plate
In layer, the steel pipe support column bottom stretches to the bottom segment in the horizon d of bottom, and the length of the bottom segment is 2.5m
~3.5m；
The bottom stake holes section for bottom segment insertion, the side wall of the bottom segment are provided in the bottom horizon d
On be provided with multiple injected holes, between the bottom segment and bottom horizon d be the stake holes inner concrete as made of concreting
Structure, multiple rows of shear bar are poured in stake holes inner concrete structure.
Above-mentioned subway station steel pipe column, it is characterized in that: multiple rows of shear bar is from top to bottom provided in the bottom segment,
Shear bar described in every row includes the along the circumferential direction uniformly distributed shear bar on steel pipe support column lateral wall of multiple tracks, multiple tracks institute
Shear bar is stated to be laid in same level.
Above-mentioned subway station steel pipe column, it is characterized in that: the upper stiffener includes upper connector and is arranged vertically
Upper stiffener, the upper connector is L shape connector, and the upper connector is fixed on the lateral wall of steel pipe support column, institute
It states stiffener to be fixed on the upper connector, the upper stiffener is fixed on steel pipe support column by the upper connector
On；The lower stiffener includes lower connector and the lower stiffener that is arranged vertically, and the lower connector is L shape connector,
The lower connector is fixed on the lateral wall of steel pipe support column, and the lower stiffener is fixed on the lower connector, described
Lower stiffener is fixed on steel pipe support column by the lower connector；The upper stiffener and the lower stiffener are triangle
Shape plate.
Above-mentioned subway station steel pipe column, it is characterized in that: the middle stiffener includes middle connector and is arranged vertically
Middle stiffener, the middle connector is L shape connector, and the middle connector is fixed on the lateral wall of steel pipe support column, institute
It states stiffener to be fixed on the upper connector, the middle stiffener is fixed on steel pipe support column by the middle connector
On；Multiple through-holes are provided on the middle stiffener.
Above-mentioned subway station steel pipe column, it is characterized in that: the round tray includes lower circular ring shape plate, is located at lower circular ring shape
Upper circular ring shape plate and multiple supporting elements being supported between lower circular ring shape plate and upper circular ring shape plate right above plate, multiple branch
Support member is along the circumferential direction uniformly distributed, and the lower circular ring shape plate and upper circular ring shape plate are in horizontal layout.
Meanwhile a kind of the invention also discloses processing steps simple, design is rationally and the good steel of easy construction, using effect
Tubing string construction technology, which is characterized in that the technique the following steps are included:
Step 1: pore digging: from top to bottom being excavated to the stake holes of the erection of steel pipe column；
The aperture of the stake holes be Φ 2m~Φ 3m and its be arranged vertically, the diameter of the steel pipe support column is Φ
550mm~Φ 650mm；
Step 2: steel pipe column hoisting: the steel pipe column from top to bottom being lifted in stake holes described in step 1, and is made
The steel pipe column is located at the middle inside of the stake holes；
Step 3: filling concrete: by grouting pipe into steel pipe support column concrete perfusion；To institute's concrete perfusion
After solidification, the steel pipe column that construction is completed is obtained.
Above-mentioned technique, it is characterized in that: the steel pipe support column bottom stretches in the horizon d below bottom plate, the steel pipe
Support column bottom stretches to the bottom segment in the horizon d of bottom, and the length of the bottom segment is 2.5m~3.5m；
The bottom stake holes section for bottom segment insertion, the side wall of the bottom segment are provided in the bottom horizon d
On be provided with multiple injected holes, between the bottom segment and bottom horizon d be the stake holes inner concrete as made of concreting
Structure, multiple rows of shear bar are poured in stake holes inner concrete structure；Being located at the segment below bottom plate in the stake holes is
Bottom stake holes section；
When carrying out filling concrete in step 3, it is irrigated from the bottom to top, the coagulation being poured into the bottom segment
Soil enters bottom stake holes section through multiple injected holes, and obtains construction and complete stake holes inner concrete structure；
When carrying out filling concrete in step 3, the concrete being perfused is self-compacting concrete；
The inside upper part of the steel pipe support column is provided with steel reinforcement cage, and the grouting pipe is arranged vertically and it is located at
The middle inside of the stake holes, the grouting pipe are passed through from steel reinforcement cage middle inside；
When carrying out filling concrete in step 3, method is left using high-altitude and is irrigated by grouting pipe.
Above-mentioned technique, it is characterized in that: before from top to bottom being excavated to the stake holes of the erection of steel pipe column in step 1,
Unwrapping wire first is measured to the installation position of the stake holes；
The stake holes is divided into top stake holes and the lower part stake holes below the top stake holes, and the top stake holes is located at
In the upper soil horizon, the lower part stake holes is located in the lower part horizon d；
When from top to bottom being excavated to the stake holes in step 1, first using artificial from top to bottom to the top stake holes
It is excavated, then from top to bottom the lower part stake holes is excavated using drilling and blasting method.
Compared with the prior art, the present invention has the following advantages:
1, used steel pipe rod structure is simple and easy construction, using effect are good, and investment construction cost is lower, in steel pipe
The middle part and lower part of support column separately design the good joint structure of structurally reasonable and using effect, not only easy construction, and make
Good with effect, construction quality is easy to guarantee.
2, used interior joint structural texture is simply, design is reasonable and processing and fabricating and installation fix simplicity, use effect
Fruit is good, the round tray including coaxial package on steel pipe column, is supported using round tray centering plate-girder, and round support
Disk is located at below middle plate-girder.
3, used interior joint construction easy construction and using effect is good, to the node between steel pipe column and middle plate-girder into
When row construction, without any weld job, steel member is notheated deformation, can effectively avoid the deformation at because of steel tubular column joints big
Caused by hidden danger of quality, and manually the amount of devoting oneself to work is small, and steel usage amount is small, saves steel 65.4% compared to conventional node.
The interior joint configurations are simple, design rationally and processing and fabricating and easy construction, using effect are good, welding when node construction
Operation, it is economical and practical.
4, used lower node structural texture is simply, design is reasonable and processing and fabricating and installation fix simplicity, use effect
Fruit is good, and lower node construction includes upper reinforcing structure, middle reinforcing structure and the lower reinforcing structure from top to bottom laid, knot of above putting more energy into
Structure, middle reinforcing structure and lower reinforcing structure are poured in bottom plate；Also, steel pipe support column bottom stretches to the bottom below bottom plate
It is from top to bottom provided in portion's horizon d, in bottom segment on multiple rows of shear bar and its side wall and is provided with multiple injected holes, bottom section
Section is poured with multiple rows of shear bar in stake holes inner concrete structure, and fixed and easy construction carries out steel pipe support column
When concreting, synchronizes and pouring construction is carried out to stake holes inner concrete structure.Also, lower node construction and subway station main body
The bottom horizon d below bottom plate and bottom plate in structure, which is fastenedly connected, to be integrated, and the mechanical property of steel pipe column can be effectively improved
Can, stressed effect is more preferably.
5, used steel pipe column construction technology step is simple, design is reasonable and easy construction, and energy is easy, is rapidly completed ground
The work progress of steel pipe column in iron car station, and construction quality is easy to guarantee, steel pipe column good mechanical performance, the branch of construction molding
Support that effect is good and long service life,
In conclusion the present invention has rational design and easy construction, using effect are good, energy is easy, subway station is rapidly completed
The work progress of interior steel pipe column, and the steel pipe column good mechanical performance of construction molding.
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of steel pipe column of the present invention.
Fig. 2 is the connection status diagram of steel pipe column of the present invention and round tray.
Fig. 3 is process flow diagram of the invention.
Construction State schematic diagram when Fig. 4 is reinforcing bar cage hoisting of the present invention.
Fig. 5 is the Construction State schematic diagram during anchoring section filling concrete of the present invention.
Fig. 6 is the Construction State schematic diagram after the completion of filling concrete of the present invention.
Description of symbols:
1-steel pipe support column；2-round trays；3-middle plate-girders；
4-bottom plates；5-upper reinforcing structures；6-middle reinforcing structures；
7-lower reinforcing structures；8-bottom horizon ds；9-shear bars；
10-bottom stake holes sections；11-injected holes；12-stake holes inner concrete structures；
13-grouting pipes；14-steel reinforcement cages.
Specific embodiment
A kind of subway station steel pipe column as shown in Figure 1, it is characterised in that: including being located in constructed subway station
Steel pipe support column 1, the interior joint construction for being laid in 1 middle part of steel pipe support column and the lower node for being laid in 1 lower part of steel pipe support column
Construction, the steel pipe support column 1 are arranged vertically；The main structure of constructed subway station includes 4, two difference cloth of bottom plate
It is located at the side wall of 4 left and right sides top of bottom plate, is laid in the top plate and bottom plate 4 positioned at the top plate of 4 surface of bottom plate and one
Between middle plate, the left and right sides of the bottom plate 4, the top plate and the middle plate is connected as one with the side wall；It is described
The top and the bottom of steel pipe support column 1 are separately fixed on the top plate and bottom plate 4, are provided in the middle plate in horizontal layout
Plate-girder 3, the middle plate-girder 3 are laid along the transverse width direction of constructed subway station, the bottom plate 4, the middle plate and
Middle plate-girder 3 is reinforced concrete structure；The interior joint construction includes round tray of the coaxial package on steel pipe support column 1
2, the round tray 2 is in horizontal layout, and the middle plate-girder 3 is supported on round tray 2, and the round tray 2 is located at middle plate
The lower section of beam 3, the round tray 2 are installed on steel pipe support column 1, and the steel pipe support column 1 therefrom passes through in plate-girder 3；It is described
Lower node construction includes upper reinforcing structure 5, middle reinforcing structure 6 and the lower reinforcing structure 7 from top to bottom laid, it is described on put more energy into knot
Structure 5 is symmetrically arranged with lower reinforcing structure 7, and the upper reinforcing structure 5, middle reinforcing structure 6 and lower reinforcing structure 7 pour the bottom of in
In plate 4；The upper reinforcing structure 5 include it is multiple it is along the circumferential direction uniformly distributed on 1 lateral wall of steel pipe support column on put more energy into
Part, multiple upper stiffeners are laid in same level；The middle reinforcing structure 6 includes multiple along the circumferential direction uniform
The middle stiffener being laid on 1 lateral wall of steel pipe support column, multiple middle stiffeners are laid in same level；It is described
Lower reinforcing structure 7 includes multiple along the circumferential direction uniformly distributed lower stiffeners on 1 lateral wall of steel pipe support column, multiple described
Lower stiffener is laid in same level.
In the present embodiment, 1 bottom of steel pipe support column is stretched in the bottom horizon d 8 of 4 lower section of bottom plate, the steel pipe
1 bottom of support column stretches to the bottom segment in bottom horizon d 8, and the length of the bottom segment is 2.5m~3.5m.
Also, multiple rows of shear bar 9 is from top to bottom provided in the bottom segment, shear bar 9 described in every row includes more
The along the circumferential direction uniformly distributed shear bar 9 on 1 lateral wall of steel pipe support column in road, shear bar 9 described in multiple tracks are laid in together
On one horizontal plane.
In the present embodiment, the bottom stake holes section 10 for bottom segment insertion is provided in the bottom horizon d 8, it is described
Multiple injected holes 11 are provided on the side wall of bottom segment, for by concreting between the bottom segment and bottom horizon d 8
Made of stake holes inner concrete structure 12, multiple rows of shear bar 9 pours in stake holes inner concrete structure 12.
When practice of construction, multiple injected holes 11 are in uniformly distributed, and multiple injected holes 11 are in quincunx laying.
In the present embodiment, the upper stiffener includes upper connector and the upper stiffener that is arranged vertically, the upper company
Fitting is L shape connector, and the upper connector is fixed on the lateral wall of steel pipe support column 1, and the upper stiffener is fixed on institute
It states on upper connector, the upper stiffener is fixed on steel pipe support column 1 by the upper connector；The lower stiffener includes
Lower connector and the lower stiffener being arranged vertically, the lower connector are L shape connector, and the lower connector is fixed on steel
On the lateral wall of pipe support column 1, the lower stiffener is fixed on the lower connector, and the lower stiffener is by under described
Connector is fixed on steel pipe support column 1；The upper stiffener and the lower stiffener are triangular plate.
In the present embodiment, the middle stiffener includes middle connector and the middle stiffener that is arranged vertically, the middle company
Fitting is L shape connector, and the middle connector is fixed on the lateral wall of steel pipe support column 1, and the middle stiffener is fixed on institute
It states on upper connector, the middle stiffener is fixed on steel pipe support column 1 by the middle connector；It is opened on the middle stiffener
There are multiple through-holes.
Thus, the middle stiffener forms a PBL shear connector, enhances shearing strength, effectively improves steel pipe support
Bonding strength between 1 bottom of column and stake holes inner concrete structure 12.
To further increase the bonding strength between 1 bottom of steel pipe support column and stake holes inner concrete structure 12, it is described in
Zigzag is processed on the outside of stiffener.
In the present embodiment, the round tray 2 is weldingly fixed on steel pipe column 1.
As shown in Fig. 2, the round tray 2 includes lower circular ring shape plate 2-1, upper right above lower circular ring shape plate 2-1
Circular ring shape plate 2-2 and multiple supporting element 2-3 being supported between lower circular ring shape plate 2-1 and upper circular ring shape plate 2-2, multiple branch
Support member 2-3 is along the circumferential direction uniformly distributed, and the lower circular ring shape plate 2-1 and upper circular ring shape plate 2-2 are in horizontal layout.
In the present embodiment, multiple supporting element 2-3 are the support plate being arranged vertically.
Also, the support plate is steel plate, and the lower circular ring shape plate 2-1 and upper circular ring shape plate 2-2 are steel plate.
In the present embodiment, with welding side between each support plate and lower circular ring shape plate 2-1 and upper circular ring shape plate 2-2
Formula is fixedly connected.
Also, the lower circular ring shape plate 2-1 and upper circular ring shape plate 2-2 are weldingly fixed on steel pipe column 1, each branch
The inner sidewall of fagging is weldingly fixed on steel pipe column 1.
When practice of construction, before constructing to the middle plate-girder 3, round tray 2 is first fixed on steel pipe column 1.To steel
When node between tubing string 1 and middle plate-girder 3 is constructed, centering plate-girder 3 is only needed to construct, and makes therefrom plate-girder 3 of steel pipe column 1
It inside passes through, the middle plate-girder 3 of construction molding is located at middle 3 lower section of plate-girder.Thus, practice of construction is easy, to steel pipe column 1 and middle plate
When node between beam 3 is constructed, without any weld job, construction volume is small, easy construction, quickly.
A kind of steel pipe column construction technology as shown in Figure 3, comprising the following steps:
Step 1: pore digging: from top to bottom being excavated to the stake holes of the erection of steel pipe column；
The aperture of the stake holes be Φ 2m~Φ 3m and its be arranged vertically, the diameter of the steel pipe support column 1 is Φ
550mm~Φ 650mm；
Step 2: steel pipe column hoisting: the steel pipe column from top to bottom being lifted in stake holes described in step 1, and makes institute
State the middle inside that steel pipe column is located at the stake holes；
Step 3: filling concrete: by grouting pipe 13 into steel pipe support column 1 concrete perfusion；It is mixed wait be perfused
After solidifying soil solidification, the steel pipe column that construction is completed is obtained.
In the present embodiment, 1 bottom of steel pipe support column is stretched in the horizon d of 4 lower section of bottom plate, the steel pipe support
1 bottom of column stretches to the bottom segment in bottom horizon d 8, and the length of the bottom segment is 2.5m~3.5m.
When practice of construction, according to specific needs, the length in aperture and the bottom segment to the stake holes carries out phase
It should adjust.
In the present embodiment, the bottom stake holes section 10 for bottom segment insertion is provided in the bottom horizon d 8, it is described
Multiple injected holes 11 are provided on the side wall of bottom segment, for by concreting between the bottom segment and bottom horizon d 8
Made of stake holes inner concrete structure 12, multiple rows of shear bar 9 pours in stake holes inner concrete structure 12；The stake holes
In to be located at the segment of the lower section of bottom plate 4 be bottom stake holes section 10；
When carrying out filling concrete in step 3, it is irrigated from the bottom to top, the coagulation being poured into the bottom segment
Soil enters bottom stake holes section 10 through multiple injected holes 11, and obtains construction and complete stake holes inner concrete structure 12.Thus, it is real
Border construction is very easy.
When carrying out filling concrete in the present embodiment, in step 3, the inside upper part of the steel pipe support column 1 is provided with steel
Muscle cage 14, the grouting pipe 13 is arranged vertically and its middle inside for being located at the stake holes, the grouting pipe 13 from
14 middle inside of steel reinforcement cage passes through.
14 top of steel reinforcement cage stretches in top plate, and steel pipe column top of the present invention passes through steel reinforcement cage 14 and the top
Plate, which pours, to be integrated, and realizes rigid connection.
Before carrying out filling concrete in step 2 after the completion of steel pipe column hoisting and in step 3, hanging device is first used
Steel reinforcement cage 14 is lifted in steel pipe support column 1, Fig. 4 is detailed in.
Also, when carrying out filling concrete in step 3, method is left using high-altitude and is irrigated by grouting pipe 13,
It is detailed in Fig. 5.
Wherein, high-altitude leave method be also referred to as it is high throw no vibrated concrete method, i.e., mixture be have very high mobility and
Do not isolate, not bleeding, without vibrating or vibrating less realize gravity flow using the kinetic energy that generates when throwing under eminence in casting process
Put down and be full of the concrete of steel pipe column.
In the present embodiment, before from top to bottom being excavated to the stake holes of the erection of steel pipe column in step 1, first to institute
The installation position for stating stake holes measures unwrapping wire；
The stake holes is divided into top stake holes and the lower part stake holes below the top stake holes, and the top stake holes is located at
In the upper soil horizon, the lower part stake holes is located in the lower part horizon d；
When from top to bottom being excavated to the stake holes in step 1, first using artificial from top to bottom to the top stake holes
It is excavated, then from top to bottom the lower part stake holes is excavated using drilling and blasting method.
In the present embodiment, when carrying out binding construction to the steel reinforcement cage 14, made on smooth ground steel ring platform.
The production quality of the steel reinforcement cage 14 has to comply with design and related code requirement, distance of reinforcing bar have to be larger than coagulation
3 times of native coarse aggregate size or more.Hoop of putting more energy into is located on the inside of main reinforcement, and the steel reinforcement cage 14 is cylindric steel reinforcement cage and its internal diameter is answered
100mm or more bigger than outer diameter at the pipe joint of grouting pipe 13, the outer diameter of the steel reinforcement cage 14 is smaller than the aperture of the stake holes
140mm。
Meanwhile multiple spacer bar rings are from top to bottom set on the outside of the main reinforcement of steel reinforcement cage 14, described in neighbouring two
The vertical spacing of spacer bar ring is 2m, and the quantity of spacer bar ring is no less than at 4 and in uniformly distributed.The steel reinforcement cage 14
Hanging ring is arranged in top.
When carrying out filling concrete in the present embodiment, in step 3, the concrete being perfused is self-compacting concrete.
The cementitious material of the self-compacting concrete includes cement and mineral admixture, and cement should meet existing national standards
The regulation of " common portland cement " GB175；When using other kind cement, performance indicator should meet the rule of respective standard
It is fixed.Mineral admixture is flyash, ground granulated blast furnace slag, silicon ash etc., and performance indicator should meet the existing relevant criterion of country
Requirement.
The coarse aggregate of the self-compacting concrete is used using continuous grading or 2 and the collocation of the above one-stone grading, most
Big nominal particle diameter is not more than 20mm.Flat-elongated particles content, clay content and the clod content of coarse aggregate, the requirement of Ying Fuhe table 1,
Other performances and test method should meet existing professional standard " regular concrete sand, Shi Zhiliang and test method standard "
Relevant regulations in JGJ52.
The table of performance indicators of 1 coarse aggregate of table
| Project | Flat-elongated particles content | Clay content | Clod content |
| Index | ≤ 8% | ≤ 1.0% | ≤ 0.5% |
And light coarse aggregate uses continuous grading, performance indicator should meet the requirement of table 2, and performance and test method should meet
" lightweight aggregate is mixed for existing national standards " light-weight aggregate and its test method part 1: light-weight aggregate " GB/T17431.1 and professional standard
Solidifying soil technical regulation " relevant regulations in JGJ51.
| Project | Density rating | Maximum particle diameter | Grain shape coefficient | Water absorption rate for 24 hours |
| Index | ≥700 | ≤16mm | ≤2.0 | ≤ 10% |
Sand in fine aggregate selection, clay content, the clod content of natural sand should comply with standard code requirement.
The additive of the self-compacting concrete selects high-performance water reducing agent or high efficiency water reducing agent.Additive performance should meet
Existing national standards " concrete admixture " GB8076 rule related in " Technical code for application of admixture in concrete " GB50119
It is fixed.
When mixing other additives for improving mix physical performance, it should be verified by sufficiently testing, performance should meet
The requirement of existing relevant criterion.
When mixing swelling agent, performance should meet the related rule in existing national standards " cement expansive material " GB23439
It is fixed
The self-compacting concrete mixing water of the self-compacting concrete should meet existing professional standard " concrete water
Standard " JGJ63 relevant regulations.
According to requirement of engineering, when steel fibre, synthetic fibers is added in the self-compacting concrete, performance should meet existing row
Relevant regulations in industry standard " fiber concrete application technology regulation " JGJ/T221.
Before carrying out filling concrete in step 3, first grouting pipe 13 is connect with grouting equipment, and with water to slip casting
Conduit is carried out inside conduit 13.
When practical progress concreting, concrete molding temperature is no more than 35 DEG C；When winter construction, concrete enters mould
Temperature is not less than 5 DEG C.
When carrying out filling concrete in the present embodiment, in step 3, every perfusion 1m height is stopped 16 seconds to 18 seconds, to certainly
Air-free concrete is automatically closely knit, and the air of inside concrete is squeezed away, achievees the effect that concrete self-compaction.
In the present embodiment, the bottom segment is the anchoring section of the steel pipe column.
Also, the steel pipe column is divided into anchoring section and the top pile cutoff above the anchoring section.
When carrying out filling concrete in the present embodiment, in step 3, filling concrete first is carried out to the anchoring section, is detailed in
Fig. 5 and Fig. 6；After the completion of anchoring section inner concrete perfusion, and after the initial set of institute's concrete perfusion in 6h, to the top
Pile cutoff carries out filling concrete construction.During filling concrete, filling concrete speed is controlled, and be uniformly perfused.
The above is only presently preferred embodiments of the present invention, is not intended to limit the invention in any way, it is all according to the present invention
Technical spirit any simple modification to the above embodiments, change and equivalent structural changes, still fall within skill of the present invention
In the protection scope of art scheme.
Claims (9)
1. a kind of subway station steel pipe column, it is characterised in that: including the steel pipe support column being located in constructed subway station
(1), it is laid in the lower node construction that the interior joint in the middle part of steel pipe support column (1) constructed and be laid in steel pipe support column (1) lower part,
The steel pipe support column (1) is arranged vertically；The main structure of constructed subway station includes bottom plate (4), two difference cloth
The side wall for being located at bottom plate (4) left and right sides top, the top plate being located at right above bottom plate (4) and one are laid in the top plate and bottom
The left and right sides of middle plate between plate (4), the bottom plate (4), the top plate and the middle plate is connected as one with the side wall
Body；The top and the bottom of the steel pipe support column (1) are separately fixed on the top plate and bottom plate (4), are provided in the middle plate and are in
The middle plate-girder (3) of horizontal layout, the middle plate-girder (3) is laid along the transverse width direction of constructed subway station, described
Bottom plate (4), the middle plate and middle plate-girder (3) are reinforced concrete structure；The interior joint construction includes coaxial package in steel
Round tray (2) on pipe support column (1), the round tray (2) are in horizontal layout, and the middle plate-girder (3) is supported in circle
On pallet (2), the round tray (2) is located at below middle plate-girder (3), and the round tray (2) is installed on steel pipe support column (1)
On, the steel pipe support column (1) therefrom passes through in plate-girder (3)；The lower node construction on from top to bottom laying including putting more energy into
Structure (5), middle reinforcing structure (6) and lower reinforcing structure (7), the upper reinforcing structure (5) and lower reinforcing structure (7) are in symmetrical cloth
If the upper reinforcing structure (5), middle reinforcing structure (6) and lower reinforcing structure (7) pour in bottom plate (4)；It puts more energy on described
Structure (5) includes multiple along the circumferential direction uniformly distributed upper stiffeners on steel pipe support column (1) lateral wall, it is multiple it is described on
Stiffener is laid in same level；The middle reinforcing structure (6) includes multiple along the circumferential direction uniformly distributed in steel pipe
Middle stiffener on support column (1) lateral wall, multiple middle stiffeners are laid in same level；It puts more energy under described knot
Structure (7) includes multiple along the circumferential direction uniformly distributed lower stiffeners on steel pipe support column (1) lateral wall, it is multiple described lower plus
Strength part is laid in same level；
The diameter of the steel pipe support column (1) is Φ 550mm~Φ 650mm, and the stake holes of steel pipe support column (1) installation is in perpendicular
Straight Xiang Bushe and its aperture are Φ 2m~Φ 3m；
Steel pipe support column (1) bottom stretches in the bottom horizon d (8) below bottom plate (4), the steel pipe support column (1)
Bottom stretches to the bottom segment in bottom horizon d (8), and the length of the bottom segment is 2.5m~3.5m；
The bottom stake holes section (10) for bottom segment insertion is provided in the bottom horizon d (8), the bottom segment
It is provided on side wall multiple injected holes (11), for as made of concreting between the bottom segment and bottom horizon d (8)
Stake holes inner concrete structure (12) is from top to bottom provided with multiple rows of shear bar (9) in the bottom segment, multiple rows of shear bar
(9) it pours in stake holes inner concrete structure (12)；The bottom stake holes section (10) is to be located under bottom plate (4) in the stake holes
The segment of side；
The lower node construction pours in bottom plate (4), and the bottom plate (4) is supported on bottom horizon d (8), the bottom section
Section is located in bottom horizon d (8), and the bottom segment passes through stake holes inner concrete structure (12) and bottom horizon d (8) even
It connects.
2. subway station steel pipe column described in accordance with the claim 1, it is characterised in that: the round tray (2) is welded and fixed
On steel pipe support column (1).
3. subway station steel pipe column described in accordance with the claim 1, it is characterised in that: shear bar described in every row (9) includes
The along the circumferential direction uniformly distributed shear bar (9) on steel pipe support column (1) lateral wall of multiple tracks, shear bar (9) described in multiple tracks are equal
It is laid in same level.
4. subway station steel pipe column according to claim 1 or 2, it is characterised in that: the upper stiffener includes upper company
Fitting and the upper stiffener being arranged vertically, the upper connector are L shape connector, and the upper connector is fixed on steel pipe branch
On the lateral wall of dagger (1), the upper stiffener is fixed on the upper connector, and the upper stiffener passes through the upper connection
Part is fixed on steel pipe support column (1)；The lower stiffener includes lower connector and the lower stiffener that is arranged vertically, described
Lower connector is L shape connector, and the lower connector is fixed on the lateral wall of steel pipe support column (1), and the lower stiffener is solid
It is scheduled on the lower connector, the lower stiffener is fixed on steel pipe support column (1) by the lower connector；It is described above to add
Strength plate and the lower stiffener are triangular plate.
5. subway station steel pipe column according to claim 4, it is characterised in that: the middle stiffener includes middle connector
With the middle stiffener being arranged vertically, the middle connector is L shape connector, and the middle connector is fixed on steel pipe support column
(1) on lateral wall, the middle stiffener is fixed on the upper connector, and the middle stiffener is solid by the middle connector
It is scheduled on steel pipe support column (1)；Multiple through-holes are provided on the middle stiffener.
6. subway station steel pipe column according to claim 1 or 2, it is characterised in that: under the round tray (2) includes
Circular ring shape plate (2-1), the upper circular ring shape plate (2-2) being located at right above lower circular ring shape plate (2-1) and multiple it is supported in lower circular ring shape
Supporting element (2-3) between plate (2-1) and upper circular ring shape plate (2-2), multiple supporting elements (2-3) along the circumferential direction uniform cloth
If the lower circular ring shape plate (2-1) and upper circular ring shape plate (2-2) are in horizontal layout.
7. a kind of technique constructed to steel pipe column as described in claim 1, which is characterized in that the technique includes following step
It is rapid:
Step 1: pore digging: from top to bottom being excavated to the stake holes of the erection of steel pipe column；
The aperture of the stake holes be Φ 2m~Φ 3m and its be arranged vertically, the diameter of the steel pipe support column (1) is Φ
550mm~Φ 650mm；
Step 2: steel pipe column hoisting: the steel pipe column from top to bottom being lifted in stake holes described in step 1, and makes the steel
Tubing string is located at the middle inside of the stake holes；
Step 3: filling concrete: by grouting pipe (13) to steel pipe support column (1) interior concrete perfusion；It is mixed wait be perfused
After solidifying soil solidification, the steel pipe column that construction is completed is obtained.
8. technique according to claim 7, it is characterised in that: steel pipe support column (1) bottom stretches under bottom plate (4)
In the horizon d of side, steel pipe support column (1) bottom stretches to the bottom segment in bottom horizon d (8), the bottom section
The length of section is 2.5m~3.5m；
The bottom stake holes section (10) for bottom segment insertion is provided in the bottom horizon d (8), the bottom segment
It is provided on side wall multiple injected holes (11), for as made of concreting between the bottom segment and bottom horizon d (8)
Stake holes inner concrete structure (12), multiple rows of shear bar (9) pour in stake holes inner concrete structure (12)；The stake holes
In be located at bottom plate (4) below segment be bottom stake holes section (10)；
It when carrying out filling concrete in step 3, is irrigated from the bottom to top, the concrete warp being poured into the bottom segment
Multiple injected holes (11) enter bottom stake holes section (10), and obtain construction and complete stake holes inner concrete structure (12)；
When carrying out filling concrete in step 3, the concrete being perfused is self-compacting concrete；
The inside upper part of the steel pipe support column (1) is provided with steel reinforcement cage (14), and the grouting pipe (13) is arranged vertically
And its middle inside for being located at the stake holes, the grouting pipe (13) pass through from steel reinforcement cage (14) middle inside；
When carrying out filling concrete in step 3, method is left using high-altitude and is irrigated by grouting pipe (13).
9. according to technique described in claim 7 or 8, it is characterised in that: from top to bottom to the erection of steel pipe column in step 1
Stake holes excavated before, unwrapping wire first is measured to the installation position of the stake holes；
The stake holes is divided into top stake holes and the lower part stake holes below the top stake holes, and the top stake holes is located at described
In upper soil horizon, the lower part stake holes is located in the lower part horizon d；
When from top to bottom being excavated to the stake holes in step 1, first from top to bottom the top stake holes is carried out using artificial
It excavates, then from top to bottom the lower part stake holes is excavated using drilling and blasting method.
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| CN201610791707.8A CN106320374B (en) | 2016-08-31 | 2016-08-31 | A kind of subway station steel pipe column and its construction technology |
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| CN201610791707.8A CN106320374B (en) | 2016-08-31 | 2016-08-31 | A kind of subway station steel pipe column and its construction technology |
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| CN109371961B (en) * | 2018-12-08 | 2020-10-13 | 成都鑫都建设工程有限公司 | Steel pipe column for subway station and construction process thereof |
| CN111691600A (en) * | 2020-07-09 | 2020-09-22 | 香港华艺设计顾问(深圳)有限公司 | Tree-shaped three-fork steel pipe column for supporting outdoor concrete platform |
| CN114704030B (en) * | 2022-02-24 | 2023-11-28 | 中国华西企业股份有限公司 | Prefabricated steel pipe column applied to roof system, pouring method of prefabricated steel pipe column and concrete |
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