CN110042749A - UHPC steel tube concrete overlap-type lattice column structure and its construction method - Google Patents
UHPC steel tube concrete overlap-type lattice column structure and its construction method Download PDFInfo
- Publication number
- CN110042749A CN110042749A CN201910458216.5A CN201910458216A CN110042749A CN 110042749 A CN110042749 A CN 110042749A CN 201910458216 A CN201910458216 A CN 201910458216A CN 110042749 A CN110042749 A CN 110042749A
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- Prior art keywords
- uhpc
- column
- pipe
- type lattice
- steel tube
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 69
- 239000010959 steel Substances 0.000 title claims abstract description 69
- 239000011374 ultra-high-performance concrete Substances 0.000 title claims abstract description 65
- 239000004567 concrete Substances 0.000 title claims abstract description 52
- 238000010276 construction Methods 0.000 title claims abstract description 12
- 238000012946 outsourcing Methods 0.000 claims abstract description 15
- 238000009958 sewing Methods 0.000 claims abstract description 7
- 239000002002 slurry Substances 0.000 claims description 9
- 238000003466 welding Methods 0.000 claims description 6
- 239000000835 fiber Substances 0.000 claims description 4
- 238000009415 formwork Methods 0.000 claims description 3
- 239000002689 soil Substances 0.000 claims 1
- 239000004576 sand Substances 0.000 abstract description 5
- 230000007797 corrosion Effects 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 5
- 239000011150 reinforced concrete Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
Abstract
The present invention relates to a kind of UHPC steel tube concrete overlap-type lattice column structures, including column limb, connecting plate is provided between adjacent two columns limb, the column limb includes UHPC layers of column outsourcing, coupled column is provided in UHPC layers of column outsourcing, the connecting plate includes UHPC plate layer, is provided in UHPC plate layer and sews pipe, and node link block is provided between pipe and coupled column sewing；The invention further relates to a kind of construction methods of UHPC steel tube concrete overlap-type lattice column structure.Structure of the invention is reasonable, easy to operate, can improve structural strength, rigidity, endurance quality, corrosion resistance, while can also mitigate self weight and promote anti-blown sand performance, extending structure service life.
Description
Technical field
The present invention relates to a kind of UHPC steel tube concrete overlap-type lattice column structure and its construction methods.
Background technique
Ultra-high performance concrete (Ultra-high Performance Concrete, hereinafter referred to as UHPC) can be rated as durable
Property best engineering material, by appropriate arrangement of reinforcement UHPC mechanical property close to steel construction, meanwhile, UHPC has excellent resistance to
Mill, the capability of antidetonance, after adding a certain amount of micro steel fiber, ductility can be significantly improved, it might even be possible to reach general
250 times of logical concrete ductility, ultimate tensile strength up to compressive ultimate strain 1%；UHPC has extensively in various job facilities
Application prospect, especially Large Span Bridges, explosion resistant structure (military engineering, bank vault etc.) and thin-wall construction etc.；UHPC mono-
As be made of materials such as cement, silicon ash, fine sand, high efficiency water reducing agent and steel fibres, component fineness is small, good fluidity, good from close property；
For UHPC when making and using, each raw material service efficiency is high, advantageously reduces material utilization amount and reduces CO2Discharge, have
The effect for saving material, energy conservation and emission reduction, meets the theme of present social sustainable development, is the knot of high value of new generation, Gao Qianli
Structure and functional material.
Steel tube concrete overlap-type lattice column is another steel tube concrete superposed column used in high pier bridge, by 4
What is connected between root column limb and column limb sews pipe concrete board group at preferable bearing capacity and stiffness；Steel tube concrete superposed formula
The reinforced concrete enveloped layer of lattice column overcomes the fire-resistance of column limb and the disadvantage of antiseptic property difference, prevents the part of steel pipe outward
Buckling.In recent years, steel tube concrete overlap-type lattice column is applied in engineering because of its superior function.
However still there is some shortcomings in the application of Practical Project in steel tube concrete overlap-type lattice column, specifically
As described below: with the fast development of present Science and Technology, more and more Large Span Bridges are rised sheer from level ground, to steel tube concrete
The bearing capacity of native superposed type lattice column, rigidity and life requirement are also higher and higher.
Steel tube concrete overlap-type lattice column be by connected between 4 column limbs and column limb sew pipe concrete board group at,
In, connected between column limb sew pipe concrete plate include joint block, sew pipe and filling sew pipe concrete, inner skeleton is by more
Sew pipe to be welded with joint block respectively, sews pipe concrete plate energy precisely fixed column limb position, steel tube concrete superposed formula lattice
The globality of column is preferable；But it is sparse due to sewing pipe distribution, it is biggish in stress effect that outside was filled sews pipe concrete
Place is easy to produce peeling phenomenon, weakens significantly to the protective effect for sewing pipe, to reduce the bearing capacity and stiffness of structure.
If not changing the concrete filled steel tube area of section in steel tube concrete overlap-type lattice column by increasing outside it
Baogang's reinforced concrete layer cross section area promotes bearing capacity, rigidity and the durability of steel tube concrete overlap-type lattice column, will
The occupied space for increasing pier stud is unfavorable for passing through under bridge, also increases difficulty of construction.But it is steel tube concrete superposed in order to meet
The superior function of formula lattice column, reinforced concrete enveloped layer are often designed to thicker form, so that it is excessive to generate the structure scale of construction
Problem.
The concrete filled out in steel tube concrete overlap-type lattice column at present is most of from great, intensity is low, rigidity is weak, easy
Broken, corrosion-resistant general normal concrete, these disadvantages influence and limit steel tube concrete overlap-type lattice column in Large bridge
Application in beam；More serious west area is influenced in wind sand environment, the reinforced concrete enveloped layer extent of damage is also more serious,
It is unfavorable for the normal use of steel tube concrete overlap-type lattice column.
Thus, it is necessary to improve a kind of novel steel tube concrete overlap-type lattice column structure, it can either lift structure
Bearing capacity, rigidity and durability, and do not increase the area of feature cross-section, mitigate dead load.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of UHPC steel tube concrete overlap-type lattice column structure and its
Construction method, it is structurally reasonable, easy to operate, structural strength, rigidity, endurance quality, corrosion resistance can be improved, while can also subtract
Light dead-weight and promotion anti-blown sand performance, extending structure service life.
The technical scheme is that a kind of UHPC steel tube concrete overlap-type lattice column structure, including column limb, adjacent
Connecting plate is provided between two column limbs, the column limb includes UHPC layers of column outsourcing, it is provided with coupled column in UHPC layers of column outsourcing,
The connecting plate includes UHPC plate layer, is provided in UHPC plate layer and sews pipe, and node company is provided between pipe and coupled column sewing
Connect block.
Further, the coupled column includes steel pipe, and concrete column is provided in steel pipe.
Further, it is attached by the way of welding between the link block and steel pipe.
Further, the link block and sew between pipe using welding by the way of be attached.
Another technical solution provided by the invention is a kind of construction of UHPC steel tube concrete overlap-type lattice column structure
Method, including the UHPC steel tube concrete overlap-type lattice column structure: (1) commerical ready-mixed concrete is filled into steel pipe in, to
Coupled column is formed after concrete initial set in steel pipe；(2) link block is welded on steel pipe, will then sews pipe again and is welded to connection
On block；(3) positioning form erecting operation is then carried out outside steel pipe, during formwork, UHPC layers of holding post outsourcing connect with UHPC plate layer
It is logical；(4) UHPC slurries are made, are made by the match ratio of mixing of steel fiber, UHPC slurries are poured into template and steel pipe, sew pipe
Between gap in；(5) UHPC layers of column outsourcing and UHPC plate layer are formed after the initial set of band UHPC slurries, then by the template outside steel pipe
It is removed, structure is conserved.
Compared with prior art, the beneficial effects of the present invention are: structure of the invention is reasonable, easy to operate, structure can be improved
Intensity, rigidity, endurance quality, corrosion resistance, while self weight can also be mitigated and promote anti-blown sand performance, extending structure uses the longevity
Life.
To can be more clearly understood the above objects, features and advantages of the present invention, with reference to the accompanying drawing to the present invention
Specific embodiment elaborate.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention；
In figure: 100- column limb；UHPC layers of 110- column outsourcing；120- coupled column；121- steel pipe；122- concrete column；200- connection
Plate；210-UHPC plate layer；220- sews pipe；230- link block.
Specific embodiment
As shown in Figure 1, a kind of UHPC steel tube concrete overlap-type lattice column structure, including column limb 100, in adjacent two columns limb
Connecting plate 200 is provided between 100, the column limb 100 includes column outsourcing UHPC layer 110, is arranged in column outsourcing UHPC layer 110
There is coupled column 120, the connecting plate 200 includes UHPC plate layer 210, is provided in UHPC plate layer 210 and sews pipe 220, is sewing pipe
Node link block 230 is provided between 220 and coupled column 120.
In the present embodiment, the coupled column 120 includes steel pipe 121, and concrete column 122 is provided in steel pipe 121.
In the present embodiment, it is attached by the way of welding between the link block 230 and steel pipe 121.
In the present embodiment, the link block 230 and sew between pipe 220 using welding by the way of be attached.
A kind of construction method of UHPC steel tube concrete overlap-type lattice column structure, including the UHPC concrete filled steel tube
Commerical ready-mixed concrete: (1) being filled into steel pipe 121 by superposed type lattice rod structure, is formed after the concrete initial set in steel pipe 121
Coupled column 120；(2) link block 230 is welded on steel pipe 121, will then sews pipe 220 again and is welded on link block 230；(3)
Then positioning form erecting operation is carried out outside steel pipe 121, during formwork, holding post outsourcing UHPC layer 110 and UHPC plate layer 210 connect
It is logical；(4) UHPC slurries are made, are made by the match ratio of mixing of steel fiber, by UHPC slurries pour into template and steel pipe 121,
Sew in the gap between pipe 220；(5) column outsourcing UHPC layer 110 and UHPC plate layer 210 are formed after the initial set of band UHPC slurries, then
Template outside steel pipe 121 is removed, structure is conserved.
Aforesaid operations process and software and hardware configuration are only used as presently preferred embodiments of the present invention, are not intended to limit the present invention
The scope of the patents, it is all using equivalents made by description of the invention and accompanying drawing content, be applied directly or indirectly in phase
Technical field is closed, is included within the scope of the present invention.
Claims (5)
1. a kind of UHPC steel tube concrete overlap-type lattice column structure, it is characterised in that: including column limb, between adjacent two columns limb
It is provided with connecting plate, the column limb includes UHPC layers of column outsourcing, and coupled column, the connecting plate are provided in UHPC layers of column outsourcing
It including UHPC plate layer, is provided in UHPC plate layer and sews pipe, be provided with node link block between pipe and coupled column sewing.
2. UHPC steel tube concrete overlap-type lattice column structure according to claim 1, it is characterised in that: the coupled column
Including steel pipe, concrete column is provided in steel pipe.
3. UHPC steel tube concrete overlap-type lattice column structure according to claim 2, it is characterised in that: the link block
It is attached by the way of welding between steel pipe.
4. UHPC steel tube concrete overlap-type lattice column structure according to claim 3, it is characterised in that: the link block
It is attached by the way of welding between pipe with sewing.
5. a kind of construction method of UHPC steel tube concrete overlap-type lattice column structure, including UHPC steel as claimed in claim 4
Pipe concrete superposed type lattice rod structure, it is characterised in that: (1) commerical ready-mixed concrete is filled into steel pipe, to mixed in steel pipe
Coupled column is formed after solidifying soil initial set；(2) link block is welded on steel pipe, will then sews pipe again and is welded on link block；(3) it connects
Carry out positioning form erecting operation outside steel pipe, during formwork, UHPC layers of holding post outsourcing are connected to UHPC plate layer；(4) it makes
UHPC slurries are made by the match ratio of mixing of steel fiber, and UHPC slurries are poured into template and steel pipe, sew the gap between pipe
In；(5) UHPC layers of column outsourcing and UHPC plate layer are formed after the initial set of band UHPC slurries, then remove the template outside steel pipe,
Structure is conserved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910458216.5A CN110042749A (en) | 2019-05-29 | 2019-05-29 | UHPC steel tube concrete overlap-type lattice column structure and its construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910458216.5A CN110042749A (en) | 2019-05-29 | 2019-05-29 | UHPC steel tube concrete overlap-type lattice column structure and its construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110042749A true CN110042749A (en) | 2019-07-23 |
Family
ID=67284077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910458216.5A Pending CN110042749A (en) | 2019-05-29 | 2019-05-29 | UHPC steel tube concrete overlap-type lattice column structure and its construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110042749A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110396920A (en) * | 2019-08-22 | 2019-11-01 | 福州大学 | The equilateral three limbs composite column structure and its construction method of ultra-high performance concrete sleeve |
| CN117145140A (en) * | 2023-10-30 | 2023-12-01 | 福州大学 | UHPC-CFST combined column structure and construction method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103669729A (en) * | 2013-12-06 | 2014-03-26 | 清华大学 | Steel tube concrete overlap-type lattice column |
| CN203640164U (en) * | 2013-12-06 | 2014-06-11 | 清华大学 | Concrete-filled steel tube laminated latticed column |
| US9856614B1 (en) * | 2016-11-10 | 2018-01-02 | Shenzhen Municipal Design & Research Institute Co., Ltd. | Aseismic combined pier |
| CN109629403A (en) * | 2019-02-22 | 2019-04-16 | 福州大学 | A kind of concrete support rod structure and preparation method thereof |
| CN210134332U (en) * | 2019-05-29 | 2020-03-10 | 福州大学 | UHPC steel pipe concrete superposed lattice column structure |
-
2019
- 2019-05-29 CN CN201910458216.5A patent/CN110042749A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103669729A (en) * | 2013-12-06 | 2014-03-26 | 清华大学 | Steel tube concrete overlap-type lattice column |
| CN203640164U (en) * | 2013-12-06 | 2014-06-11 | 清华大学 | Concrete-filled steel tube laminated latticed column |
| US9856614B1 (en) * | 2016-11-10 | 2018-01-02 | Shenzhen Municipal Design & Research Institute Co., Ltd. | Aseismic combined pier |
| CN109629403A (en) * | 2019-02-22 | 2019-04-16 | 福州大学 | A kind of concrete support rod structure and preparation method thereof |
| CN210134332U (en) * | 2019-05-29 | 2020-03-10 | 福州大学 | UHPC steel pipe concrete superposed lattice column structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110396920A (en) * | 2019-08-22 | 2019-11-01 | 福州大学 | The equilateral three limbs composite column structure and its construction method of ultra-high performance concrete sleeve |
| CN117145140A (en) * | 2023-10-30 | 2023-12-01 | 福州大学 | UHPC-CFST combined column structure and construction method thereof |
| CN117145140B (en) * | 2023-10-30 | 2024-02-13 | 福州大学 | Structure for constructing UHPC-CFST combined column and construction method thereof |
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