CN109024250A - A kind of exposed foot joint and its construction method of composite bridge pier stud - Google Patents
A kind of exposed foot joint and its construction method of composite bridge pier stud Download PDFInfo
- Publication number
- CN109024250A CN109024250A CN201811163441.8A CN201811163441A CN109024250A CN 109024250 A CN109024250 A CN 109024250A CN 201811163441 A CN201811163441 A CN 201811163441A CN 109024250 A CN109024250 A CN 109024250A
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- concrete
- sole plate
- gfrp
- steel
- fashioned iron
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Classifications
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- 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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a kind of exposed foot joint of composite bridge pier stud and its construction method, which includes GFRP pipe, fashioned iron, concrete, boots beam, reinforcing bar, steel sole plate and anchor bolt；Fashioned iron is nested in the middle part of GFRP pipe, and lower end is welded with boots beam；Boots beam and steel sole plate weld；It is welded with several reinforcing bars, casting concrete between fashioned iron and GFRP pipe on steel sole plate, and forms prefabricated GFRP pipe-concrete-shaped steel combination rod structure with steel sole plate；Several anchor holes are provided on steel sole plate, steel sole plate is connect by the anchor bolt across anchor hole with basic embedded board.The present invention is exposed foot joint, is suitable for prefabricated GFRP- concrete-shaped steel combination column, power transmission is apparent, simple structure, easy for construction；Boots beam is welded using welded reinforcement on steel sole plate and fashioned iron, the mode of boots beam and steel sole plate welding manages GFRP, concrete and fashioned iron are connected with basis, can effectively transmit axle power and moment of flexure.
Description
Technical field
The invention belongs to FRP, concrete, steel composite structure field more particularly to a kind of exposed columns of composite bridge pier stud
Foot node and its construction method.
Background technique
With the development of China's economy and society, the construction of bridge is increasingly universal, and China belongs to the country that earthquake takes place frequently, ground
Loss caused by shake is difficult to the appraisal.It is very important in the effect of bridges in transportation system, when an earthquake occurs, bridge
Beam once collapses or damages as important life channel, seriously affects rescue work, life and property loss is caused to aggravate.
It is a large amount of practice have shown that, it is the main reason for bridge earthquake first is that the destruction of pier column, only possess enough intensity and ductility with
And reliable base node just can guarantee that pier column works normally during macroseism.
In addition, bridge corrosion is also a global problem.In China, with coastal area rapid economic development, one
Seat seat bridge spanning the sea stands and rises, and is included in the Hangzhou Gulf Great Bridge of the third place in the world length enabled for 2008, in the main body of in September, 2016
The longest bridge spanning the sea in the world that bridge floor is open to traffic --- pearl Hongkong and Macro bridge, they all undergo the marine environment of very severe
Influence, under reinforcement corrosion and dynamic load double action, anti-seismic performance significantly reduce.Especially when an earthquake occurs, in earthquake
Under load action, the corrosion of reinforcing bar will sharply accelerate the extension of concrete cracks, will lead to pier column premature failure, seriously affects
The safety of bridge.In order to overcome the problems, such as this, resin base fiber reinforced composite material (fiber is introduced in structure
Reinforced polymer, i.e. FRP), in recent years to FRP material and traditional construction material (such as concrete and steel) optimization group
Conjunction has conducted extensive research, and builds up economic and corrosion resistant composite structure with expectation
GFRP pipe-concrete-shaped steel combination column is managed by the GFRP of outer layer, the fashioned iron of internal layer, and intermediate concrete three
Part forms.As a kind of form of FRP material, concrete and steel combined member, which has easy for construction, corrosion resistant
The advantages that corrosion can be good, anti-seismic performance is good.But the research in relation to GFRP pipe-concrete-shaped steel combination column just starts to walk, and is
Cooperate the combined member in the application of engineering, development reliable performance, simple structure, construction is simple, clearly nodal potential exists for power transmission
It must go.
Summary of the invention
In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide a kind of exposed foot joint of composite bridge pier stud
And its construction method.
It is achieved through the following technical solutions to mesh of the invention: a kind of exposed suspension column section of composite bridge pier stud
Point, including GFRP pipe, fashioned iron, concrete, boots beam, reinforcing bar, steel sole plate and anchor bolt；The fashioned iron is nested in the middle part of GFRP pipe,
Lower end is welded with boots beam；The boots beam and steel sole plate weld；Several reinforcing bars, the fashioned iron and GFRP are welded on the steel sole plate
Casting concrete between pipe, and prefabricated GFRP pipe-concrete-shaped steel combination rod structure is formed with steel sole plate；On the steel sole plate
Several anchor holes are provided with, steel sole plate is connect by the anchor bolt across anchor hole with basic embedded board.
Further, the GFRP pipe is made or GFRP material pultrusion of the winding of GFRP cloth.
Further, the GFRP pipe is hollow pipe, and using GFRP material, shape is round, rectangular or oval.
Further, the section steel material is common iron, stainless steel or light-gauge steel section, and shape is H-shaped or cross.
Further, the concreting is managed between fashioned iron in GFRP, and material is normal concrete, high-strength concrete
Or self-compacting concrete.
Further, the boots beam is placed vertically by two pieces and the steel plate being parallel to each other forms, and boots beam and fashioned iron pass through angle
Solder design, boots beam are connect with steel sole plate by fillet weld.
Further, the steel sole plate with a thickness of 50mm-80mm；The quantity of the anchor hole at least 12, anchor hole
Diameter is greater than anchor bolt diameter 1.5mm.
Further, the reinforced steel bar ring is enclosed around boots beam at least two, and every circle has at least 12 reinforcing bars, the reinforcing bar of every circle uniform
Arrangement；The bar diameter is greater than 18mm, and length is 500mm to 1.5D, and D is the diameter of GFRP pipe.
A kind of construction method of the exposed foot joint of composite bridge pier stud, the construction method the following steps are included:
Step 1: standing on steel sole plate vertically by fashioned iron in factory, and be fixed temporarily, respectively two blocks of steel plates of boots beam
It is welded with fashioned iron and steel sole plate, reinforcing bar is welded on steel sole plate according to predeterminated position；
Step 2: GFRP pipe sleeve is placed in outside fashioned iron, guarantees that fashioned iron is carried out in the center of GFRP pipe, and to GFRP pipe
Anti- side falls to fix, and casting concrete forms prefabricated GFRP pipe-concrete-shaped steel combination rod structure；
Step 3: conserving prefabricated GFRP pipe-concrete-shaped steel combination rod structure in factory, and sends out in concrete
After life is initially crept and shunk, secondary teeming concrete is carried out；
Step 4: the prefabricated GFRP pipe-concrete-shaped steel combination rod structure after step 3 is processed transports to scene, utilizes
The basic embedded board and anchor bolt at scene position GFRP pipe-concrete-shaped steel combination rod structure, after adjusting good position, adopt
It is fixed with anchor bolt, completes installation.
Compared with prior art, the beneficial effects of the present invention are:
1, the present invention is exposed foot joint, is suitable for prefabricated GFRP- concrete-shaped steel combination column, power transmission is apparent, structure
It makes simply, it is easy for construction.
2, according to coupled column feature, boots beam, boots beam and steel bottom are specially welded using welded reinforcement on steel sole plate and fashioned iron
The mode of plate welding, manages GFRP, concrete and fashioned iron are connected with basis, can effectively transmit axle power and moment of flexure.
2, boots beam is welded on internal fashioned iron, help steel sole plate transmitting load and resists tilting moment, to meet more
The needs of big pier stud axial compression ratio.
3, in addition, pier stud for bearing greater level load, can also set shear connector and undertake level and cut in column root-plate
Power.
4, the foot joint form that uses of the present invention, can not only transmit axle power, but also can resist larger tilting moment, can be with
Meet stress, deformation and the shockproof requirements of GFRP pipe-concrete-shaped steel combination column.
Detailed description of the invention
Fig. 1 is the elevation of foot joint；
Fig. 2 is the plan view of foot joint；
Fig. 3 is steel sole plate and its anchor hole.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
As shown in Figure 1-3, a kind of exposed foot joint of composite bridge pier stud provided by the invention, including GFRP pipe 1, type
Steel 2, concrete 3, boots beam 4, reinforcing bar 5, steel sole plate 6 and anchor bolt 7；The fashioned iron 2 is nested in 1 middle part of GFRP pipe, lower end welding
There is boots beam 4；The boots beam 4 is welded with steel sole plate 6；Several reinforcing bars 5, the fashioned iron 2 and GFRP pipe are welded on the steel sole plate 6
Casting concrete 3 between 1, and prefabricated GFRP pipe-concrete-shaped steel combination rod structure is formed with steel sole plate 6；The steel sole plate 6
On be provided with several anchor holes 8, steel sole plate 6 is connect by passing through the anchor bolt 7 of anchor hole 8 with basic embedded board.
Further, the GFRP pipe 1 is made or GFRP material pultrusion of the winding of GFRP cloth.
Further, the GFRP pipe 1 is hollow pipe, and using GFRP material, shape is round, rectangular or oval.
Further, the fashioned iron 2 is located at 3 middle part of concrete, helps concrete 3 to undertake pressure, and undertake main pulling force,
Material is common iron, stainless steel or light-gauge steel section, and shape is H-shaped or cross.
Further, the concrete 3 pours between GFRP pipe 1 and fashioned iron 2, intensity with higher, has certain
Mobility and workability, material be normal concrete, high-strength concrete or self-compacting concrete, can add wherein practical
Additive.
Further, the boots beam 4 is placed vertically by two pieces and the steel plate being parallel to each other forms, and boots beam 4 passes through with fashioned iron 2
Fillet weld connection, boots beam 4 connect with steel sole plate 6 by fillet weld, for transmitting the axle power of composite column structure to steel sole plate 6.
Further, the steel sole plate 6 with a thickness of 50mm-80mm, welded with fashioned iron 2, be provided with several anchors on steel sole plate 6
Keyhole 8 is attached with basic embedded board, plays the role of directly transmitting axle power and positioning；The quantity of the anchor hole 8 is at least
12,8 diameter of anchor hole is greater than 7 diameter 1.5mm of anchor bolt；Anchor bolt 7 connects steel sole plate 6 and basic embedded board, for transmitting combination
The pulling force and pressure of rod structure are in basic embedded board.
Further, the reinforcing bar 5 is enclosed around boots beam 4 at least two, and every circle has at least 12 reinforcing bars 5, the reinforcing bar 5 of every circle
It is evenly arranged；5 diameter of reinforcing bar is greater than 18mm, and length is 500mm to 1.5D, and D is the diameter of GFRP pipe 1.
A kind of construction method of the exposed foot joint of composite bridge pier stud, the construction method the following steps are included:
Step 1: standing on steel sole plate 6 vertically by fashioned iron 2 in factory, and be fixed temporarily, respectively two pieces of boots beam 4
Steel plate and fashioned iron 2 and steel sole plate 6 weld, and reinforcing bar 5 is welded on steel sole plate 6 according to predeterminated position；
Step 2: GFRP pipe 1 is placed on outside fashioned iron 2, guarantees that fashioned iron 2 is managed in the center of GFRP pipe 1, and to GFRP
1, which carries out anti-side, falls to fix, and casting concrete 3 forms prefabricated GFRP pipe-concrete-shaped steel combination rod structure；
Step 3: conserving prefabricated GFRP pipe-concrete-shaped steel combination rod structure in factory, and sends out in concrete 3
After life is initially crept and shunk, secondary teeming concrete 3 is carried out；
Step 4: the prefabricated GFRP pipe-concrete-shaped steel combination rod structure after step 3 is processed transports to scene, utilizes
The basic embedded board and anchor bolt 7 at scene position GFRP pipe-concrete-shaped steel combination rod structure, after adjusting good position, adopt
It is fixed with anchor bolt 7, complete installation.
Above-described embodiment is a preferred embodiment of the present invention, be to the content of present invention and its application furtherly
It is bright, it should not be construed as the present invention and be only applicable to above-described embodiment.All technologies realized based on the principle of the invention and summary of the invention
It all belongs to the scope of the present invention.
Claims (9)
1. a kind of exposed foot joint of composite bridge pier stud, which is characterized in that manage (1), fashioned iron (2), concrete including GFRP
(3), boots beam (4), reinforcing bar (5), steel sole plate (6) and anchor bolt (7)；The fashioned iron (2) is nested in the middle part of GFRP pipe (1), lower end
It is welded with boots beam (4)；The boots beam (4) and steel sole plate (6) are welded；Several reinforcing bars (5), institute are welded on the steel sole plate (6)
Casting concrete (3) between fashioned iron (2) and GFRP pipe (1) is stated, and forms prefabricated GFRP pipe-concrete-fashioned iron with steel sole plate (6)
Composite column structure；It is provided with several anchor holes (8) on the steel sole plate (6), steel sole plate (6) passes through the anchor bolt across anchor hole (8)
(7), it is connect with basic embedded board.
2. a kind of exposed foot joint of composite bridge pier stud according to claim 1, which is characterized in that the GFRP pipe
(1) it is made or GFRP material pultrusion of the winding of GFRP cloth.
3. a kind of exposed foot joint of composite bridge pier stud according to claim 1, which is characterized in that the GFRP pipe
It (1) is hollow pipe, using GFRP material, shape is round, rectangular or oval.
4. a kind of exposed foot joint of composite bridge pier stud according to claim 1, which is characterized in that the fashioned iron
(2) material is common iron, stainless steel or light-gauge steel section, and shape is H-shaped or cross.
5. a kind of exposed foot joint of composite bridge pier stud according to claim 1, which is characterized in that the concrete
(3) material is normal concrete, high-strength concrete or self-compacting concrete.
6. a kind of exposed foot joint of composite bridge pier stud according to claim 1, which is characterized in that the boots beam
(4) it is placed vertically by two pieces and the steel plate being parallel to each other forms, boots beam (4) is connect with fashioned iron (2) by fillet weld, boots beam (4)
It is connect with steel sole plate (6) by fillet weld.
7. a kind of exposed foot joint of composite bridge pier stud according to claim 1, which is characterized in that the steel sole plate
(6) with a thickness of 50mm-80mm；The quantity of the anchor hole (8) at least 12, anchor hole (8) diameter are greater than anchor bolt (7) diameter
1.5mm。
8. a kind of exposed foot joint of composite bridge pier stud according to claim 1, which is characterized in that the reinforcing bar
(5) it is enclosed around boots beam (4) at least two, every circle has at least 12 reinforcing bars (5), and the reinforcing bar (5) of every circle is evenly arranged；The reinforcing bar
(5) diameter is greater than 18mm, and length is 500mm to 1.5D, and D is the diameter that GFRP manages (1).
9. a kind of construction method of the exposed foot joint of composite bridge pier stud, which is characterized in that the construction method includes following
Step:
Step 1: standing on steel sole plate (6) vertically by fashioned iron (2) in factory, and be fixed temporarily, respectively the two of boots beam (4)
Block steel plate and fashioned iron (2) and steel sole plate (6) weld, and reinforcing bar (5) is welded on steel sole plate (6) according to predeterminated position；
Step 2: being placed on fashioned iron (2) outside for GFRP pipe (1), guarantees that fashioned iron (2) manage the center of (1) in GFRP, and right
GFRP pipe (1) carries out anti-side and falls to fix, and casting concrete (3) forms prefabricated GFRP pipe-concrete-shaped steel combination rod structure；
Step 3: conserving prefabricated GFRP pipe-concrete-shaped steel combination rod structure in factory, and occurs in concrete (3)
After initially creeping and shrink, secondary teeming concrete (3) is carried out；
Step 4: the prefabricated GFRP pipe-concrete-shaped steel combination rod structure after step 3 is processed transports to scene, utilizes scene
Basic embedded board and anchor bolt (7) GFRP pipe-concrete-shaped steel combination rod structure is positioned, adjust good position after, use
Anchor bolt (7) is fixed, completes installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811163441.8A CN109024250A (en) | 2018-09-30 | 2018-09-30 | A kind of exposed foot joint and its construction method of composite bridge pier stud |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811163441.8A CN109024250A (en) | 2018-09-30 | 2018-09-30 | A kind of exposed foot joint and its construction method of composite bridge pier stud |
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| CN109024250A true CN109024250A (en) | 2018-12-18 |
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| CN201811163441.8A Pending CN109024250A (en) | 2018-09-30 | 2018-09-30 | A kind of exposed foot joint and its construction method of composite bridge pier stud |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113832833A (en) * | 2021-08-26 | 2021-12-24 | 广州市公用事业规划设计院有限责任公司 | Connecting node of double-wall hollow pier stud and capping beam and construction method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101372843A (en) * | 2008-10-23 | 2009-02-25 | 同济大学 | Friction type finite sway shock absorber strut |
| CN102108761A (en) * | 2011-03-02 | 2011-06-29 | 大连理工大学 | Fiber reinforced plastics-steel composite pipe restricted structural steel high-strength concrete column |
| CN202644384U (en) * | 2012-04-26 | 2013-01-02 | 西安建筑科技大学 | Aluminum alloy pipe restricting type steel concrete pier column |
| CN102966113A (en) * | 2012-11-06 | 2013-03-13 | 清华大学 | Shallow buried steel column base and construction method thereof |
| CN204690607U (en) * | 2015-01-28 | 2015-10-07 | 广东工业大学 | A kind of flange anchor device of steel sleeve reinforced concrete circular pier |
| CN104963354A (en) * | 2015-07-08 | 2015-10-07 | 黄冀卓 | Whole body embedded type rigid pedestal and construction method thereof |
| CN106013615A (en) * | 2016-06-21 | 2016-10-12 | 大连理工大学 | Self-stressing-concrete-FRP-pipe-constrained combination column |
| KR101702098B1 (en) * | 2016-06-27 | 2017-02-02 | 주식회사 지에스씨 | Structure for combining pile and Coping of prefabricate girder bridge |
| CN209082327U (en) * | 2018-09-30 | 2019-07-09 | 浙江大学城市学院 | A kind of exposed foot joint of composite bridge pier stud |
-
2018
- 2018-09-30 CN CN201811163441.8A patent/CN109024250A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101372843A (en) * | 2008-10-23 | 2009-02-25 | 同济大学 | Friction type finite sway shock absorber strut |
| CN102108761A (en) * | 2011-03-02 | 2011-06-29 | 大连理工大学 | Fiber reinforced plastics-steel composite pipe restricted structural steel high-strength concrete column |
| CN202644384U (en) * | 2012-04-26 | 2013-01-02 | 西安建筑科技大学 | Aluminum alloy pipe restricting type steel concrete pier column |
| CN102966113A (en) * | 2012-11-06 | 2013-03-13 | 清华大学 | Shallow buried steel column base and construction method thereof |
| CN204690607U (en) * | 2015-01-28 | 2015-10-07 | 广东工业大学 | A kind of flange anchor device of steel sleeve reinforced concrete circular pier |
| CN104963354A (en) * | 2015-07-08 | 2015-10-07 | 黄冀卓 | Whole body embedded type rigid pedestal and construction method thereof |
| CN106013615A (en) * | 2016-06-21 | 2016-10-12 | 大连理工大学 | Self-stressing-concrete-FRP-pipe-constrained combination column |
| KR101702098B1 (en) * | 2016-06-27 | 2017-02-02 | 주식회사 지에스씨 | Structure for combining pile and Coping of prefabricate girder bridge |
| CN209082327U (en) * | 2018-09-30 | 2019-07-09 | 浙江大学城市学院 | A kind of exposed foot joint of composite bridge pier stud |
Non-Patent Citations (2)
| Title |
|---|
| 郭明霞;曹平周;肖建华;伍凯;: "轴心受力外露式钢与混凝土组合柱脚设计", 建筑科学, no. 11 * |
| 都智恩;: "浅析轻钢结构柱脚设计和施工质量控制要点", 科技视界, vol. 2, no. 24, pages 137 - 141 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113832833A (en) * | 2021-08-26 | 2021-12-24 | 广州市公用事业规划设计院有限责任公司 | Connecting node of double-wall hollow pier stud and capping beam and construction method |
| CN113832833B (en) * | 2021-08-26 | 2023-08-25 | 广州市城建规划设计院有限公司 | Connection node of double-wall hollow pier column and capping beam and construction method |
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