CN110409303A - A kind of bridge abdomen fill process of steel flanged beam multiple arch bridge - Google Patents
A kind of bridge abdomen fill process of steel flanged beam multiple arch bridge Download PDFInfo
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- CN110409303A CN110409303A CN201910581219.8A CN201910581219A CN110409303A CN 110409303 A CN110409303 A CN 110409303A CN 201910581219 A CN201910581219 A CN 201910581219A CN 110409303 A CN110409303 A CN 110409303A
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- bridge
- foam concrete
- abdomen
- cavity
- arch
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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
- 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 bridge abdomen fill process of steel flanged beam multiple arch bridge, solve the problems, such as that the bridge abdomen filling part preponderance of steel flanged beam multiple arch bridge at this stage is easy to cause arch floor damaged.Its key points of the technical solution are that a kind of bridge abdomen fill process of steel flanged beam multiple arch bridge, includes the following steps: S1, builds construction side plate；S2, the top surface for clearing up bridge pier top surface and arch floor；S3, light filling foam concrete is layered in base's cavity；S4, light filling foam concrete is layered in top layer cavity；S5, polishing bridge abdomen top surface；And pass through setting separation layer and cushion, reduce the probability of light foam concrete process of setting jackshaft abdomen filling part damage construction side plate and arch floor, under the premise of guaranteeing bridge abdomen filling part structural strength, reduce the weight of bridge abdomen filling part, the receiving pressure of arch floor is reduced, so that reducing arch floor occurs damaged probability.
Description
Technical field
The present invention relates to a kind of architectural construction technologies, more particularly to a kind of bridge abdomen fill process of steel flanged beam multiple arch bridge.
Background technique
Arch bridge is generally divided into spandrel arch bridge and filled spandrel arch bridge according to the difference of bridge fu jie structure, wherein spandrel arch bridge
Structure is usually the structure of small arch to be arranged at bridge abdomen, and steel flanged beam arch bridge at bridge abdomen then on the contrary, be not provided with small arch.
Refering to attached drawing 1 and attached drawing 2, a kind of steel flanged beam multiple arch bridge, multiple arches including more bridge piers 1, the adjacent bridge pier 1 of connection
Enclose 2, two blocks of construction side plates 3 of bottom plate and bridge abdomen filling part 4.Wherein, two blocks of construction side plates 3 are between adjacent two pieces of arch floors 2
It is formed with base's cavity 5 and is formed with top layer cavity 6 above base's cavity 5, bridge abdomen filling part 4 includes being located at base's cavity
Qiao Fu base 41 in 5 and the bridge abdomen top layer 42 in top layer cavity 6.
The filler that bridge abdomen fill process at this stage uses is generally flyash filler, due to flyash filler density compared with
Greatly, it although can guarantee the structural strength of bridge abdomen filling part 4, but also the weight of bridge abdomen filling part 4 is excessive, be easy to cause
Arch floor 2 is damaged, therefore needs to develop a kind of bridge abdomen fill process of novel steel flanged beam multiple arch bridge at this stage, to drop
Damaged probability occurs for the arch floor 2 of low steel flanged beam multiple arch bridge.
Summary of the invention
The object of the present invention is to provide a kind of bridge abdomen fill process of steel flanged beam multiple arch bridge, are guaranteeing bridge abdomen filling part structure
Under the premise of intensity, reduce the weight of bridge abdomen filling part, reduce the receiving pressure of arch floor, to reduce arch ring bottom
Damaged probability occurs for plate.
Above-mentioned technical purpose of the invention has the technical scheme that
A kind of bridge abdomen fill process of steel flanged beam multiple arch bridge, the bar construction for including the following steps: S1, building construction side plate, makes
Side plate is constructed with concreting；S2, the top surface for clearing up bridge pier top surface and arch floor；S3, filling is layered in base's cavity
Light foam concrete；S4, light filling foam concrete is layered in top layer cavity；S5, polishing bridge abdomen top surface；In the S3
Work progress in, in base's cavity before light filling foam concrete, the light foam concrete filled as needed
Height be coated in the top surface of corresponding arch floor and waterproof coating and be laid with separation layer；In the construction of the S3 and the S4
The height of Cheng Zhong, the light foam concrete filled as needed paste cushion in the inner wall of corresponding construction side plate.
By using above-mentioned technical proposal, core of the invention inventive point, which is to fill using light foam concrete, to be replaced
The fill process of traditional flyash or lean concrete under the premise of guaranteeing structural strength reduces bridge abdomen filling part
Weight reduces arch floor and damaged probability occurs to reduce the pressure that arch floor bears ground bridge abdomen filling part.
For the fill process for replacing flyash or lean concrete using light foam concrete, need to overcome the problems, such as just
It is that light foam concrete has certain coefficient of expansion, the part that light foam concrete filling is completed can occur slight swollen
Bulging deformation causes some potential safety problems.The present invention passes through multiple multilayer light filling foam in the work progress of S3 and S4
The mode of concrete weakens light foam concrete influence caused by the dilatancy of vertical direction.Simultaneously further through two
The inner wall of block construction side plate pastes the mode of cushion, for alleviating light foam concrete in the swollen of multiple arch bridge width direction
It is swollen, reduce bridge abdomen filling part because dilatancy construction side plate caused by squeeze, reduce bridge abdomen filling part and expand deformation
Cause the probability of construction side plate damage.
Wherein, in the work progress of S2, it is coated with waterproof coating and separation layer in the top surface of arch floor, since lightweight is steeped
Slight dilatancy can occur during solidification for foam concrete, and the setting of separation layer enables to adjacent with arch floor
Light foam concrete not will drive in process of setting arch floor occur synchronization-sliding, reduce arch floor in lightweight
The probability that is damaged during foam concrete condenses, above-mentioned separation layer can weaken bottom light foam concrete and
The combination of arch floor enables bridge abdomen filling part to occur in light foam concrete condensation process relative to arch floor
Slight sliding.
As a further improvement of the present invention, in the S3, one layer of lightweight bubble is first laid in base's cavity at both ends
Foam concrete, after light foam concrete layer solidification after, then mutually abut third side to base's cavity in be laid with one layer of lightweight
Foam concrete, until above-mentioned steps are repeated after being equipped with one layer of light foam concrete in all base's cavitys, until
All base's cavitys are filled and are completed.
By using above-mentioned technical proposal, in the work progress of above-mentioned S3, lightweight is first carried out from base's cavity at both ends
The laying of foam concrete, then light foam concrete layer is laid in intermediate base's cavity, this mode is gradually in fact
It pressurizes to arch floor, is caused so that steel flanged beam multiple arch bridge is arranged in because side pressurization is excessive in bridge abdomen filling process
The problem of arch floor damage or multiple arch bridge collapse.
As a further improvement of the present invention, the thickness of each every layer of light foam concrete is not more than in the S3
80cm。
It is protected by using above-mentioned technical proposal to the thickness of every layer of light foam concrete is defined every time in S3
It is little to have demonstrate,proved the dilatancy amount of every layer of light foam concrete in the vertical direction, has facilitated the structure of lift bridge abdomen filling part
Intensity.
As a further improvement of the present invention, the separation layer is plastic film.
By using above-mentioned technical proposal, the isolation effect of plastic film is ideal, and it is mixed to can be avoided light foam
The bonding of solidifying soil and arch floor.
As a further improvement of the present invention, the separation layer is degradable geotextile.
By using above-mentioned technical proposal, since degradable geotextile has certain thickness, in addition to lightweight can be isolated
Outside the effect of foam concrete and arch floor, over time, degradable geotextile can be dropped over time
Solution helps to be promoted matching for bridge abdomen filling part and arch ring so that light foam concrete and arch floor contact completely
Close intensity.
As a further improvement of the present invention, in the S4, every layer of light foam concrete is from the two of top layer cavity
Hold the intermediate direction broken-up laying to top layer cavity.
By using above-mentioned technical proposal, due to the light foam concrete in top layer cavity length direction span compared with
Greatly, if single layer light foam concrete passes through one-time-concreting, it is easy to cause light foam concrete in length direction
Dilatancy amount is larger, influences the structural strength of single layer light foam concrete.
As a further improvement of the present invention, in the S3, when being laid in top layer cavity, at least one layer of light foam is mixed
After solidifying soil, communication pipe is constructed along the length direction of steel flanged beam multiple arch bridge in the top surface of light foam concrete, and in communication tube
The left and right sides wall in road pastes cushion.
By using above-mentioned technical proposal, it is conventional setting that communication pipe, which is arranged, on steel flanged beam multiple arch bridge.Due to logical
Fuse tube road can be embedded in light foam concrete, since slight shape can occur in process of setting for light foam concrete
Become, especially light foam concrete is applied to boost in pressure in the left and right sidewall of communication pipe after expanding deformation, holds
It easily leads to communication pipe and breakage occurs.And cushion is pasted in the left and right sides lateral wall of communication pipe, lightweight bubble can be alleviated
Foam concrete is to the pressure of communication pipe, so that reducing communication pipe occurs damaged probability.
In conclusion the invention has the following advantages:
1, the bridge abdomen fill process of a kind of steel flanged beam multiple arch bridge, central inventive point, which is to fill using light foam concrete, to be replaced
The fill process of traditional flyash or lean concrete under the premise of guaranteeing structural strength reduces bridge abdomen filling part
Weight reduces arch floor and damaged probability occurs to reduce the pressure that arch floor bears ground bridge abdomen filling part；It is logical
Paved in multi-layers light foam concrete is crossed, separation layer is laid in arch floor and pastes cushion in the inner wall of construction side plate,
To reduce light foam concrete influence caused by arch floor and construction side plate in process of setting；
2, when being laid with light foam concrete in base's cavity, from both ends to intermediate successively paved in multi-layers, this mode is in fact
It is gradually to pressurize to arch floor, so that steel flanged beam multiple arch bridge is arranged in because side was pressurizeed in bridge abdomen filling process
The problem of causing arch floor damage or multiple arch bridge to collapse greatly；
3, the intermediate direction of the light foam concrete of top layer cavity poured using from the both ends of top layer cavity to top layer cavity
Broken-up laying, the light foam concrete that can weaken top layer cavity cause single layer light foam concrete in process of setting
The lower influence of structural strength.
Detailed description of the invention
Fig. 1 is the longitudinal profile schematic diagram of steel flanged beam multiple arch bridge in the prior art；
Fig. 2 is horizontal section schematic diagram of the steel flanged beam multiple arch bridge at bridge pier in the prior art；
Fig. 3 is that steel flanged beam multiple arch bridge does not carry out the longitudinal profile schematic diagram before bridge abdomen filling in embodiment 1；
Fig. 4 is the longitudinal profile schematic diagram that steel flanged beam multiple arch bridge has filled base's cavity in embodiment 1；
Fig. 5 is that steel flanged beam multiple arch bridge has filled base's cavity and installed the longitudinal profile schematic diagram of partition in embodiment 1；
Fig. 6 is horizontal section schematic diagram of the complete communication pipe of the more arch formations of steel flanged beam at bridge pier in embodiment 1.
In figure: 1, bridge pier；2, arch floor；21, the first arch ring；22, the second arch ring；23, third arch ring；3, side is constructed
Plate；4, bridge abdomen filling part；41, Qiao Fu base；42, bridge abdomen top layer；5, base's cavity；51, first base's cavity；52, the second base
Layer cavity；53, third base cavity；6, top layer cavity；71, partition；72, filling slot；8, communication pipe；9, Ji Po.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
A kind of bridge abdomen fill process of steel flanged beam multiple arch bridge, includes the following steps:
Refering to attached drawing 3, S1, the bar construction for building construction side plate 3, and side plate 3 is constructed using concreting.
At this point, two blocks of construction side plates 3 are formed with base's cavity 5 between adjacent arch ring.In the present embodiment, steel flanged beam is more
Arch bridge is five arch bridge of steel flanged beam, from the middle to both ends successively includes the second arch ring of first arch ring 21, two 22 and two the
Three arch rings 23.First base's cavity 51, the second arch ring 22 and third arch ring are formed between first arch ring 21 and the second arch ring 22
Second base's cavity 52 is formed between 23；Third base cavity 53 is formed between third arch ring 23 and base slope 9.
After S2, side plate to be constructed 3 form, the top surface of bridge pier 1 top surface and arch floor 2 is cleared up, so that 1 top surface of bridge pier and arch
The top surface for enclosing bottom plate 2 keeps smooth.
S3, light filling foam concrete is layered in base's cavity 5, it is shown that specific step is as follows:
S3.1, one layer of light foam concrete is filled in Liang Ge third base cavity 53；S3.2, to third base cavity 53
After interior light foam concrete solidification, one layer of light foam concrete is filled in two second base's cavitys 52；S3.3,
After the light foam concrete solidification in second base's cavity 52, one layer of lightweight is filled in two first base's cavitys 51
Foam concrete；Above-mentioned S3.1, S3.2 and S3.3 are repeated later, until by first base's cavity 51, second base's cavity, 52 and
The filling of third base cavity 53 is completed.
In the present embodiment, the thickness of every layer of light foam concrete in S3.1, S3.2, S3.3 be maintained at 0.55m~
Between 0.65m.
In the work progress of S3.1, S3.2 and S3.3, in into base's cavity 5 just light filling foam concrete it
Before, the height for the light foam concrete filled as needed is coated with waterproof coating in the top surface of corresponding arch floor 2, to anti-
After water coating is dry, it is laid with layer of transparent plastic film.
In the work progress of S3.1, S3.2 and S3.3, before the light filling foam concrete into base's cavity 5,
The height for the light foam concrete filled as needed pastes cushion in the inner wall of corresponding construction side plate 3.
Refering to attached drawing 4, after the completion of S3 construction, top layer cavity 6 is formed between two blocks of construction side plates 3, and top layer is empty
The bottom surface of chamber 6 is the inclined surface tilted down from 6 middle position of top layer cavity to direction of both ends.
S4, light filling foam concrete is layered in top layer cavity 6, it is shown that specific step is as follows:
S4.1,3 inner wall of construction side plate in 6 two sides of top layer cavity are laid with cushion；
Refering to attached drawing 5, S4.2, in the bottom surface of the top layer cavity 6 multiple partitions 71 of arranged for interval, and adjacent separator along its length
Filling slot 72 is formed between 71；Seven pieces of partitions 71 are provided on top layer cavity 6, wherein five pieces are located at each arch floor 2
Top, there are also the both ends that two pieces are located at top layer cavity 6, so that the bottom of top layer cavity 6 is formed, there are six filling slots 72；
S4.3, the light filling foam concrete since the filling slot 72 at both ends will after light foam concrete solidification
After being filled through the dismounting of partition 71 at 72 both ends of filling slot of light foam concrete, on its inside and adjacent fill out is refilled
Slot 72 is filled, until being filled with light foam concrete in all filling slots 72；In the present embodiment, this layer of lightweight in S4.3
The thickness of foam concrete is also 60cm.
Refering to attached drawing 6, S4.4, to the solidification of above-mentioned light foam concrete after, the light foam filled in S4.3 is mixed
The top surface for coagulating soil constructs communication pipe 8 along the length direction of steel flanged beam multiple arch bridge, and the cross section of communication pipe 8 is in hollow side
Shape, and by stone it is brick at；In the present embodiment, steel flanged beam multiple arch bridge has two communication pipes 8；
S4.5, cushion is also pasted in the left and right sides walls of two communication pipes 8；
S4.6, step S4.1 to S4.2 is repeated, is completed until entire top layer cavity 6 is filled；
The top surface of S5, bridge abdomen of polishing, so that bridge abdomen top surface keeps smooth.
It using cement consumption is 425kg that the proportion of above-mentioned light foam concrete, which is every cubic metre, and the dosage of water is
255kg, and bubble rate 59.1%.
Above-mentioned cushion is using rubber spongy cushion.
Embodiment 2:
For the bridge abdomen fill process of steel flanged beam multiple arch bridge in the present embodiment is compared to embodiment 1, in addition to transparent plastic film
Replace with outside degradable geotextile, remaining operating procedure and the steel flanged beam multiple arch bridge in embodiment 1 bridge abdomen fill process phase
Together.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this
All by the protection of Patent Law in the scope of the claims of invention.
Claims (7)
1. a kind of bridge abdomen fill process of steel flanged beam multiple arch bridge, which comprises the steps of: S1, build construction side plate
(3) bar construction constructs side plate (3) using concreting；S2, the top for clearing up bridge pier (1) top surface and arch floor (2)
Face；S3, light filling foam concrete is layered in base's cavity (5)；S4, the layering light filling bubble in top layer cavity (6)
Foam concrete；S5, polishing bridge abdomen top surface；
In the work progress of the S3, before the interior light filling foam concrete of base's cavity (5), fill as needed
The height of light foam concrete is coated with waterproof coating in the top surface of corresponding arch floor (2) and is laid with separation layer；
In the work progress of the S3 and the S4, before the interior light filling foam concrete of base's cavity (5), according to need
The height of the light foam concrete to be filled pastes cushion in the inner wall of corresponding construction side plate (3).
2. a kind of bridge abdomen fill process of steel flanged beam multiple arch bridge according to claim 1, which is characterized in that in the S3
In, one layer of light foam concrete is first laid in base's cavity (5) at both ends, after the solidification of light foam concrete layer, then
Mutually abut third side to base's cavity (5) in be laid with one layer of light foam concrete, until all base's cavitys (5) in
After being equipped with one layer of light foam concrete, above-mentioned steps are repeated, are completed until all base's cavitys (5) are filled.
3. a kind of bridge abdomen fill process of steel flanged beam multiple arch bridge according to claim 2, which is characterized in that in the S3
The thickness of each every layer of light foam concrete is not more than 80cm.
4. a kind of bridge abdomen fill process of steel flanged beam multiple arch bridge according to claim 1, which is characterized in that the separation layer
For plastic film.
5. a kind of bridge abdomen fill process of steel flanged beam multiple arch bridge according to claim 1, which is characterized in that the separation layer
For degradable geotextile.
6. a kind of bridge abdomen fill process of steel flanged beam multiple arch bridge according to claim 1, which is characterized in that in the S4
In, every layer of light foam concrete is from the both ends of top layer cavity (6) to the intermediate direction broken-up laying of top layer cavity (6).
7. a kind of bridge abdomen fill process of steel flanged beam multiple arch bridge according to claim 6, which is characterized in that in the S3
In, after being laid at least one layer of light foam concrete in top layer cavity (6), in the top surface of light foam concrete along steel flanged beam
The length direction of multiple arch bridge constructs communication pipe (8), and pastes cushion in the left and right sides wall of communication pipe (8).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910581219.8A CN110409303A (en) | 2019-06-29 | 2019-06-29 | A kind of bridge abdomen fill process of steel flanged beam multiple arch bridge |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910581219.8A CN110409303A (en) | 2019-06-29 | 2019-06-29 | A kind of bridge abdomen fill process of steel flanged beam multiple arch bridge |
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| CN110409303A true CN110409303A (en) | 2019-11-05 |
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| CN201910581219.8A Pending CN110409303A (en) | 2019-06-29 | 2019-06-29 | A kind of bridge abdomen fill process of steel flanged beam multiple arch bridge |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111305078A (en) * | 2020-03-27 | 2020-06-19 | 中铁二院昆明勘察设计研究院有限责任公司 | Construction method of prefabricated concrete arch channel bridge |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1313307A (en) * | 1969-07-28 | 1973-04-11 | Ensor A J | Prestressed structural unit and method of forming the same structural unit |
| CN202559224U (en) * | 2012-04-12 | 2012-11-28 | 广西交通科学研究院 | Masonry arch bridge using lightweight concrete as arch upper packing |
| CN107268420A (en) * | 2017-08-11 | 2017-10-20 | 广西路桥工程集团有限公司 | A kind of unequal span arcading slab bridge |
| CN107761540A (en) * | 2017-11-16 | 2018-03-06 | 中国水利水电第十工程局有限公司 | A kind of multi-joint upper filling construction method of steel flanged beam arch bridge arch of large span |
| CN108708300A (en) * | 2018-06-21 | 2018-10-26 | 武汉二航路桥特种工程有限责任公司 | A kind of loss of weight carries the Reinforcing Double-curve Arch Bridge method for maintaining of load extension durability |
-
2019
- 2019-06-29 CN CN201910581219.8A patent/CN110409303A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1313307A (en) * | 1969-07-28 | 1973-04-11 | Ensor A J | Prestressed structural unit and method of forming the same structural unit |
| CN202559224U (en) * | 2012-04-12 | 2012-11-28 | 广西交通科学研究院 | Masonry arch bridge using lightweight concrete as arch upper packing |
| CN107268420A (en) * | 2017-08-11 | 2017-10-20 | 广西路桥工程集团有限公司 | A kind of unequal span arcading slab bridge |
| CN107761540A (en) * | 2017-11-16 | 2018-03-06 | 中国水利水电第十工程局有限公司 | A kind of multi-joint upper filling construction method of steel flanged beam arch bridge arch of large span |
| CN108708300A (en) * | 2018-06-21 | 2018-10-26 | 武汉二航路桥特种工程有限责任公司 | A kind of loss of weight carries the Reinforcing Double-curve Arch Bridge method for maintaining of load extension durability |
Non-Patent Citations (1)
| Title |
|---|
| 植村益次: "《纤维增强塑料设计手册》", 31 March 1986, 中国建筑工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111305078A (en) * | 2020-03-27 | 2020-06-19 | 中铁二院昆明勘察设计研究院有限责任公司 | Construction method of prefabricated concrete arch channel bridge |
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Application publication date: 20191105 |