CN106351124B - A kind of method for bridge construction - Google Patents
A kind of method for bridge construction Download PDFInfo
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- CN106351124B CN106351124B CN201610838331.1A CN201610838331A CN106351124B CN 106351124 B CN106351124 B CN 106351124B CN 201610838331 A CN201610838331 A CN 201610838331A CN 106351124 B CN106351124 B CN 106351124B
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Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
- E02D27/14—Pile framings, i.e. piles assembled to form the substructure
-
- 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
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0018—Cement used as binder
- E02D2300/002—Concrete
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Ceramic Engineering (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Architecture (AREA)
- Mining & Mineral Resources (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Bridges Or Land Bridges (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of method for bridge construction, include the following steps：Ground at bridge both ends is constructed concrete foundation respectively；Prefabricated mounting base is embedded into concrete foundation；The stent both ends of post and beam are fixed on by welding in two mounting bases, binding forms bridge superstructure, and installs and fix the mold of bridge on it, and mold is poured by high-strength concrete；The casting concrete slideway on the stent of post and beam, coagulation dirt chute be laterally extended perforation laterally adjacent to each bridge section casting position, be put into coagulation dirt chute and pour trolley；Complete concrete pouring material mixing, respectively carry out bridge pour, and make concrete pouring material with post and beam bracket casting together；After concrete setting forming, dismounting falls rack device.The present invention improves the efficiency of construction, using the high-strength cracking resistance water-tight concrete of self-control so that robustness, stability, the corrosion resistance of pontic are greatly improved, and extend its service life used.
Description
Technical field
The present invention relates to a kind of construction techniques, and in particular to a kind of method for bridge construction.
Background technology
At present, bridge construction is accent in highway, high-speed railway and overhead road of city construction, in bridge construction,
No matter which kind of bridge type, the mode that bridge superstructure (bridge plate) is constructed only there are two types of：One kind is prefabricated construction, another
Kind is constructed for cast in situs.To making there are two types of the fixed forms of the molding external mold of bridge plate in cast in situs：One kind is using full hall
Stent is supported, and another kind is in midair is suspended using Hanging Basket.
Bridge plate is exactly resolved into cell cube and is made in factory or precasting yard, then will form bridge plate by prefabricated construction
Cell cube transport at where bridge and on bridge pier.The advantages of this kind of method for bridge construction is：Bridge pier and bridge plate can be put down
Row construction, duration are relatively short；It is small on (boat) influence of passing through under bridge during bridge construction.Shortcoming is：Form the unit of bridge plate
The binding site construction trouble of body, the bonding strength that forms the connecting portion between the cell cube of bridge plate is poor, leaves hidden danger；Construction is set
Standby requirement is high, should not be used compared with Large Span Bridges；Start to set a roof beam in place to bridge deck construction and terminate, the duration is longer；Prefabricated bridge plate unit
Required place is big during body.
Full framing support external mold carries out cast in situs construction, and full framing is exactly set up on the ground under bridge, will be outer
Mould is fixed on stent, and then armored concrete is poured into external mold and forms the bridge plate being fixed on bridge pier by scene.This is applied
Work method generally uses under conditions of across footpath is small, bridge pier is short.The advantages of construction method is：Construction technology is simpler, equipment
It is required that relatively low, common construction team can undertake；Bridge integrity is good, without weak link；It is less to rent soil；Cost is relatively
It is low.Shortcoming is：The current or navigation under bridge is closed, obstacle is generated to local traffic and economic development；To orographic condition under bridge
More demanding, framed bent base treatment and framed bent precompressed expense are quite high；Framed bent sinking can cause quality accident.
Construction cradle exactly faces sky using cantilever cradle and sets up operating platform, and external mold is fixed on Hanging Basket by assembling reinforcement
On, then form concrete molding applies prestressing force and fixes.The construction method is generally strategically located and difficult of access in landform, to maintain to pass through under bridge
Or it is used under conditions of navigation.The construction method advantage is：It is of less demanding to the landform under bridge, it has substantially no effect on and passes through under bridge
(boat)；It is less to rent soil.Shortcoming is：Construction requirement is high, and it is smaller that cantilever faces sky construction safety degree；The construction length of each unit by
Limit, often across construction cell it is more and little per element project amount, but per unit construction process it is many, from Hanging Basket is in place, branch
Mould, assembling reinforcement, casting concrete, concrete curing, demoulding, apply prestressing force, sealing off and covering anchorage, fall a set of program of frame to spend it is longer
Time, so the construction period is longer, progress is very slow；It is more difficult to face hovering arm construction work precision controlling, close up error it is larger when
Have an impact to bridge force-bearing；Project cost is higher.
To sum up, existing method for bridge construction cannot meet simultaneously：Can keep under bridge pass through navigation requirement and
The integraty of bridge floor, the requirement that construction precision is high and construction speed is fast.
Invention content
To solve the above problems, the present invention provides a kind of method for bridge construction.
To achieve the above object, the technical solution taken of the present invention is：
A kind of method for bridge construction, includes the following steps：
S1, the ground at bridge both ends are constructed concrete foundation respectively：
S11, the foundation pit for excavating single order trapezoidal contact face, water layer of setting up defences on the inner wall upper berth of foundation pit；
S12, it completes waterproof layer laying then, in the anchor bottom plate of bottom of foundation ditch, and 37 lime earth layer is laid on bottom plate；
S13, it concrete strengthening body is carried out on 37 lime earth layer pours, and be provided in the concrete strengthening body several
Pile column and supporting rod, pile and supporting rod are arranged in a mutually vertical manner；
S14, top plate is anchored at the top of foundation pit, the area of bottom plate is less than the area of top plate；
S2, prefabricated mounting base is embedded into concrete foundation, the length of mounting base is equal to the width of bridge；
S3, the stent both ends of post and beam are fixed on by welding in two mounting bases, binding forms bridge top
Structure (reinforcing bar of bridge plate), and the mold of bridge is installed and fixed on it, the mold is poured by high-strength concrete；
S4, the casting concrete slideway on the stent of post and beam, coagulation dirt chute be laterally extended perforation laterally adjacent to it is each
The casting position of bridge section is put into coagulation dirt chute and pours trolley；
S5, the configuration for completing concrete pouring material carry out bridge and pour, and make concrete pouring material with post and beam respectively
Bracket casting is together；
After S6, bridge solidification forming, dismounting falls rack device.
Preferably, the concrete strengthening body 5 is poured by high-strength concrete.
Preferably, the high-strength concrete is poured is prepared with concrete pouring material by the raw material of following parts by weight：
13~17 parts of industrial aluminum sulphate, high-strength imitative 2~5 parts of steel wire fibre, 0.5~2 part of AS resins, bamboo fibre 3.2~8.8
Part, 3~7 parts of water-reducing agent, 2.5~8.5 parts of silicon nanoparticle, 6~18 parts of nano-calcium carbonate, 50~110 parts of acrylic emulsion,
17~23 parts of CFRP tendons, 3~10 parts of the acrylic acid series additive of perfluoroalkyl, 1.5~5.5 parts of carbon nanotube, dodecyl sulphur
Sour 0.1~0.4 part of sodium, 36.5~45.5 parts of anhydrite, 23~30 parts of sulfoaluminate clinker, modified 112~168 parts of cement, coal
50~80 parts of ash, 50~100 parts of miberal powder, 300~400 parts of sandstone, 300~350 parts of water, 4~8 parts of activity excitant, water-reducing agent 4
~8 parts, 4~8 parts of curing agent.
Preferably, the weight average molecular weight of the AS resins is 3~10W, and AN contents are 20~35%.
Preferably, the modified cement is formulated by the raw material of following parts by weight：55~70 parts of clinker, 5~10
The lithium slag of part, 8~15 parts of anhydrite, 15~20 parts of mixing material, 0.05~0.2 part of adjustable solidification agent, clinker is by anhydrous sulphur aluminium
The mixing gained of sour calcium, dicalcium silicate and tetra calcium aluminoferrite in mass ratio 3: 2: 1.
Preferably, the internal stent of the post and beam is equipped with several reinforcing liner plates, reinforces length direction of the liner plate along bridge
Distribution.
Preferably, the CFRP tendons are carbon fibre composite.
Preferably, the bottom plate and top plate are quenched nickelclad, and the waterproof layer is modified asphalt layer, the pile and support
Bar is steel pipe, and is wound with resin fibre band.
The invention has the advantages that：
Integraty and the construction precision height and construction speed of current navigation requirement and bridge floor under bridge can be kept fast
Requirement, while using making high-strength cracking resistance water-tight concrete by oneself so that robustness, stability, the corrosion resistance of pontic obtain
Very big promotion, and its service life used is extended, and by the rational design of concrete foundation structure, substantially increase bridge
Anti-seismic performance, and slideway and mold can be mixed using concrete prefabricated while being poured with pouring material
Integrally, reduce the trouble of later stage dismounting, so as to improve the efficiency of construction.
Description of the drawings
Fig. 1 is the structure diagram of concrete foundation in the embodiment of the present invention.
Specific embodiment
In order to which objects and advantages of the present invention are more clearly understood, the present invention is carried out with reference to embodiments further
It is described in detail.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to limit this hair
It is bright.
An embodiment of the present invention provides a kind of method for bridge construction, include the following steps：
S1, the ground at bridge both ends are constructed concrete foundation respectively：
As shown in Figure 1, S11, the foundation pit 4 in excavation single order trapezoidal contact face, water layer 8 of setting up defences on the inner wall upper berth of foundation pit；
S12, it completes waterproof layer laying then, in the anchor bottom plate 1 of bottom of foundation ditch, and 37 lime earth is laid on bottom plate 1
Layer 3；
S13, pouring, and be provided in concrete strengthening body 5 for concrete strengthening body 5 is carried out on 37 lime earth layer 3
Several pile columns 6 and supporting rod 7, pile 6 and supporting rod 7 are arranged in a mutually vertical manner；
S14, top plate 2 is anchored at the top of foundation pit, the area of bottom plate 1 is less than the area of top plate 2；
S2, prefabricated mounting base is embedded into concrete foundation, the length of mounting base is equal to the width of bridge；
S3, the stent both ends of post and beam are fixed on by welding in two mounting bases, binding forms bridge top
The reinforcing bar of structure bridge plate, and the mold of bridge is installed and fixed on it, the mold is poured by high-strength concrete；
S4, the casting concrete slideway on the stent of post and beam, coagulation dirt chute be laterally extended perforation laterally adjacent to it is each
The casting position of bridge section is put into coagulation dirt chute and pours trolley；
S5, the configuration for completing concrete pouring material carry out bridge and pour, and make concrete pouring material with post and beam respectively
Bracket casting is together；
After S6, bridge solidification forming, dismounting falls rack device.
The concrete strengthening body 5 is poured by high-strength concrete.
The high-strength concrete is poured to be prepared with concrete pouring material by the raw material of following parts by weight：
13~17 parts of industrial aluminum sulphate, high-strength imitative 2~5 parts of steel wire fibre, 0.5~2 part of AS resins, bamboo fibre 3.2~8.8
Part, 3~7 parts of water-reducing agent, 2.5~8.5 parts of silicon nanoparticle, 6~18 parts of nano-calcium carbonate, 50~110 parts of acrylic emulsion,
17~23 parts of CFRP tendons, 3~10 parts of the acrylic acid series additive of perfluoroalkyl, 1.5~5.5 parts of carbon nanotube, dodecyl sulphur
Sour 0.1~0.4 part of sodium, 36.5~45.5 parts of anhydrite, 23~30 parts of sulfoaluminate clinker, modified 112~168 parts of cement, coal
50~80 parts of ash, 50~100 parts of miberal powder, 300~400 parts of sandstone, 300~350 parts of water, 4~8 parts of activity excitant, water-reducing agent 4
~8 parts, 4~8 parts of curing agent.
The weight average molecular weight of the AS resins is 3~10W, and AN contents are 20~35%.
The modified cement is formulated by the raw material of following parts by weight：55~70 parts of clinker, 5~10 parts of lithium
Slag, 8~15 parts of anhydrite, 15~20 parts of mixing material, 0.05~0.2 part of adjustable solidification agent, clinker is by anhydrous calcium sulphoaluminate, silicon
Sour dicalcium and the mixing gained of tetra calcium aluminoferrite in mass ratio 3: 2: 1.
The internal stent of the post and beam is equipped with several reinforcing liner plates, reinforces liner plate and is distributed along the length direction of bridge.
The CFRP tendons are carbon fibre composite.
The bottom plate 1 and top plate 2 are quenched nickelclad, and the waterproof layer 8 is modified asphalt layer, the pile 6 and supporting rod 7
It is steel pipe, and is wound with resin fibre band.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the principle of the present invention, several improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (7)
1. a kind of method for bridge construction, which is characterized in that include the following steps：
S1, the ground at bridge both ends are constructed concrete foundation respectively：
S11, the foundation pit (4) for excavating single order trapezoidal contact face, water layer (8) of setting up defences on the inner wall upper berth of foundation pit；
S12, it completes waterproof layer laying then, bottom plate (1) is anchored, and 37 lime earth layer is laid on bottom plate (1) in bottom of foundation ditch
(3)；
S13, pouring for concrete strengthening body (5) is carried out on 37 lime earth layer (3), and is set in concrete strengthening body (5)
There are several pile columns (6) and supporting rod (7), pile (6) and supporting rod (7) are arranged in a mutually vertical manner；
S14, top plate (2) is anchored at the top of foundation pit, the area of bottom plate (1) is less than the area of top plate (2)；
S2, prefabricated mounting base is embedded into concrete foundation, the length of mounting base is equal to the width of bridge；
S3, the stent both ends of post and beam being fixed on by welding in two mounting bases, binding forms bridge superstructure,
And the mold of bridge is installed and fixed on it, the mold is poured by high-strength concrete；
S4, the casting concrete slideway on the stent of post and beam, coagulation dirt chute be laterally extended perforation laterally adjacent to each bridge
The casting position of section, is put into coagulation dirt chute and pours trolley；
S5, the configuration for completing concrete pouring material carry out bridge and pour, and make stent of the concrete pouring material with post and beam respectively
It pours together；
After S6, bridge solidification forming, dismounting falls rack device；
The high-strength concrete is poured to be prepared with concrete pouring material by the raw material of following parts by weight：
13~17 parts of industrial aluminum sulphate, high-strength imitative 2~5 parts of steel wire fibre, 0.5~2 part of AS resins, 3.2~8.8 parts of bamboo fibre,
3~7 parts of water-reducing agent, 2.5~8.5 parts of silicon nanoparticle, 6~18 parts of nano-calcium carbonate, 50~110 parts of acrylic emulsion, CFRP
17~23 parts of muscle, 3~10 parts of the acrylic acid series additive of perfluoroalkyl, 1.5~5.5 parts of carbon nanotube, lauryl sodium sulfate
0.1~0.4 part, 36.5~45.5 parts of anhydrite, 23~30 parts of sulfoaluminate clinker, modified 112~168 parts of cement, coal ash 50
~80 parts, 50~100 parts of miberal powder, 300~400 parts of sandstone, 300~350 parts of water, 4~8 parts of activity excitant, water-reducing agent 4~8
Part, 4~8 parts of curing agent.
2. a kind of method for bridge construction as described in claim 1, which is characterized in that the concrete strengthening body (5) is by high-strength
Concreting forms.
3. a kind of method for bridge construction as described in claim 1, which is characterized in that the weight average molecular weight of the AS resins is
3~10W, AN content are 20~35%.
4. a kind of method for bridge construction as described in claim 1, which is characterized in that the modified cement is by following parts by weight
Raw material be formulated：55~70 parts of clinker, 5~10 parts of lithium slag, 8~15 parts of anhydrite, 15~20 parts of mixing material,
0.05~0.2 part of adjustable solidification agent, clinker are mixed by anhydrous calcium sulphoaluminate, dicalcium silicate and tetra calcium aluminoferrite in mass ratio 3: 2: 1
Gained.
5. a kind of method for bridge construction as described in claim 1, which is characterized in that if the internal stent of the post and beam is equipped with
It is dry to reinforce liner plate, it reinforces liner plate and is distributed along the length direction of bridge.
6. a kind of method for bridge construction as described in claim 1, which is characterized in that the CFRP tendons are carbon fiber composite
Material.
7. a kind of method for bridge construction as described in claim 1, which is characterized in that the bottom plate (1) and top plate (2) is quench
Steel plate, the waterproof layer (8) are modified asphalt layer, and the pile (6) and supporting rod (7) are steel pipe, and be wound with resin
Fiber band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610838331.1A CN106351124B (en) | 2016-09-18 | 2016-09-18 | A kind of method for bridge construction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610838331.1A CN106351124B (en) | 2016-09-18 | 2016-09-18 | A kind of method for bridge construction |
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| CN106351124A CN106351124A (en) | 2017-01-25 |
| CN106351124B true CN106351124B (en) | 2018-06-15 |
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| CN201610838331.1A Expired - Fee Related CN106351124B (en) | 2016-09-18 | 2016-09-18 | A kind of method for bridge construction |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106894405B (en) * | 2017-03-11 | 2019-02-22 | 中国二十二冶集团有限公司 | The processing of back taper basic foundation and excavation construction method |
| CN106917358B (en) * | 2017-04-28 | 2018-11-20 | 北京城建道桥建设集团有限公司 | A kind of cable-stayed bridge main-beam combination constructing method thereof and its counter weight construction system |
| CN108571064A (en) * | 2017-09-18 | 2018-09-25 | 淄博职业学院 | A kind of assembled architecture and application method with earthquake-proof foundation |
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| CN203569579U (en) * | 2013-10-14 | 2014-04-30 | 许建财 | Building foundation |
| CN104108916A (en) * | 2014-06-12 | 2014-10-22 | 长安大学 | High-crack-resistance concrete |
| CN104532875A (en) * | 2014-12-03 | 2015-04-22 | 长春工程学院 | Water conservancy retaining wall project |
| CN104631615A (en) * | 2015-01-16 | 2015-05-20 | 黄淮学院 | Combined anti-seismic combination structure |
| CN104929049A (en) * | 2015-06-15 | 2015-09-23 | 许昌学院 | Road and bridge combined type construction method |
| CN205100233U (en) * | 2015-10-26 | 2016-03-23 | 上海正轶建筑设计有限公司 | Shock attenuation ground |
| CN105906257A (en) * | 2016-04-03 | 2016-08-31 | 黄河水利职业技术学院 | Building material |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002021024A (en) * | 2000-07-12 | 2002-01-23 | Kajima Corp | Erection method of corrugated web bridge |
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2016
- 2016-09-18 CN CN201610838331.1A patent/CN106351124B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203569579U (en) * | 2013-10-14 | 2014-04-30 | 许建财 | Building foundation |
| CN104108916A (en) * | 2014-06-12 | 2014-10-22 | 长安大学 | High-crack-resistance concrete |
| CN104532875A (en) * | 2014-12-03 | 2015-04-22 | 长春工程学院 | Water conservancy retaining wall project |
| CN104631615A (en) * | 2015-01-16 | 2015-05-20 | 黄淮学院 | Combined anti-seismic combination structure |
| CN104929049A (en) * | 2015-06-15 | 2015-09-23 | 许昌学院 | Road and bridge combined type construction method |
| CN205100233U (en) * | 2015-10-26 | 2016-03-23 | 上海正轶建筑设计有限公司 | Shock attenuation ground |
| CN105906257A (en) * | 2016-04-03 | 2016-08-31 | 黄河水利职业技术学院 | Building material |
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