CN208777448U - Prefabricated arch piece - Google Patents
Prefabricated arch piece Download PDFInfo
- Publication number
- CN208777448U CN208777448U CN201821465563.8U CN201821465563U CN208777448U CN 208777448 U CN208777448 U CN 208777448U CN 201821465563 U CN201821465563 U CN 201821465563U CN 208777448 U CN208777448 U CN 208777448U
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- Prior art keywords
- bfrp
- arch
- reinforced concrete
- grid material
- prefabricated
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- 239000000463 material Substances 0.000 claims abstract description 56
- 101710107464 Probable pyruvate, phosphate dikinase regulatory protein, chloroplastic Proteins 0.000 claims abstract description 55
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 38
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 36
- 239000003292 glue Substances 0.000 claims abstract description 27
- 239000004567 concrete Substances 0.000 claims abstract description 12
- 239000000835 fiber Substances 0.000 claims description 17
- 238000004026 adhesive bonding Methods 0.000 claims description 11
- 239000007800 oxidant agent Substances 0.000 claims description 11
- 230000001590 oxidative effect Effects 0.000 claims description 11
- 239000007787 solid Substances 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 239000000758 substrate Substances 0.000 claims description 7
- 238000010079 rubber tapping Methods 0.000 claims description 6
- 238000007598 dipping method Methods 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- 239000002689 soil Substances 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000005096 rolling process Methods 0.000 abstract description 3
- 239000012790 adhesive layer Substances 0.000 abstract 2
- 238000005553 drilling Methods 0.000 abstract 2
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 abstract 1
- 238000003825 pressing Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 21
- 101150097977 arch-1 gene Proteins 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000035515 penetration Effects 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 229920006387 Vinylite Polymers 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 210000002615 epidermis Anatomy 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The utility model relates to a prefabricated piece that encircles, its prefabricated piece that encircles includes reinforced concrete arch, BFRP net material, adhesive layer and a plurality of reinforcement, BFRP net material bonds on reinforced concrete arch's surface through the adhesive layer, and each reinforcement is striden at least and is ridden on a tow that forms BFRP net material to suppress BFRP net material in the surface that the concrete that bonds arched, form corresponding maintenance that adds. The manufacturing method comprises the following steps: uniformly coating base glue and impregnating glue on the surface of a processed reinforced concrete arch, rolling the BFRP grid material upwards to the arch crown along the bottom ends of two sides of the arch surface by using a roller to fully adhere the BFRP grid material to the inner surface of the arch, then carrying out drilling position marking and drilling fixing holes, and straddling and pressing the reinforcing member on the BFRP grid material through the fixing holes. The advantage is that the whole mechanical properties of structure of prefabricated arch piece has been improved greatly.
Description
Technical field:
The utility model relates in civil engineering protection works field more particularly to a kind of prefabricated arches method.
Background technique:
Domes become civil engineering and ground since it has the characteristics that stress performance is good, controls convenient for engineering construction
One of common structure type in lower protection works.But the structure is in civil engineering, over time, material gradually aging,
Keep its overall structure poor, structural bearing capacity will be caused to decline；And in protection works, with Penetration weapon attack precision increasingly
It is promoted, substantially increases penetration and explosion to the failure probability of engineering structure in soil.
Traditional arch structure is the requirement for improving bearing capacity and stiffness, is had using Strengthening by Steel-Packing mode or steel-bonded reinforcement
Mode.It will increase original structure self weight after reinforced with external steel encased complex process and reinforcing, and reduce usable floor area, and steel-bonded reinforcement
Method, can because steel bonding glue aging and steel easy-to-rust the problem of, make structure in use environment and service life by very big
Limitation.
Summary of the invention:
In view of the above shortcomings of the prior art, the utility model provides a kind of prefabricated arches and production method, specific skill
Art scheme is as follows:
The prefabricated arches, including reinforced concrete arch, BFRP grid material, gluing oxidant layer and several reinforcing members (3), institute
The surface that BFRP grid material is bonded in reinforced concrete arch by gluing oxidant layer is stated, each reinforcing member, which at least straddles, to be formed
On a piece fibre bundle of BFRP grid material, and BFRP grid material is suppressed in the surface for the concrete arch being bonded, formation pair
The reinforcing position answered.
Further, each reinforcing member straddles the infall in grid material.
Further, when the chord width (span) of the reinforced concrete arch is 1~2m, the thickness of corresponding BFRP grid material
Degree is 1~3mm；The chord width of the reinforced concrete arch be 2~3m when, corresponding BFRP grid material with a thickness of 3~5mm；
The chord width of the reinforced concrete arch be 3~5m when, corresponding BFRP grid material with a thickness of 5~10mm.
Further, every square metre of reinforcing position is no less than 20.
Further, the reinforcing position is distributed on the BFRP grid material (4) for being bonded in the surface of reinforced concrete arch.
Further, the both ends of the prefabricated arches length direction be respectively provided with the prefabricated arches along its length according to
The connecting groove and connection bump of secondary connection, the connecting groove and connection bump are adapted.
Further, the reinforcing member includes anchor bolt and press strip, and the both ends of the press strip are at least respectively equipped with a hole, anchor
The hole that bolt passes through on press strip is fixed on reinforced concrete arch, and press strip is straddled and is compressed on to form BFRP grid material at least
On a piece fibre bundle.
Further, the reinforced concrete arch is equipped with fixation hole compatible with pitch of holes is connected on press strip；It is described
Anchor bolt includes tapping screw and expansion tube, and expansion tube is fixed in the fixation hole, and tapping screw passes through the connecting hole on press strip
Spiral is connected in corresponding expansion tube；Or it is fixed on including bolt, nut and the spigot formed by chemical mode, bolt by spigot
In the fixation hole, upper end, which is stretched out outside fixation hole and worn, connects corresponding connecting hole back spin connected nut on press strip.
Further, the gluing oxidant layer includes the primer set gradually in outward direction from the surface of reinforced concrete arch
Layer and solid glue layer；Substrate glue on interior arch surface of the primer layer by being coated in reinforced concrete arch is formed, the solid glue layer
It is formed by the dipping glue being coated on primer layer；Primer layer with a thickness of 0.5~1mm, solid glue layer with a thickness of 1~2mm.
The utility model is bonded BFRP on arch surface by the way that domes to be fabricated to prefabricated reinforced concrete arch
Grid material and by reinforcing member make it is this bonding it is more solid, thus make arches circumferential direction have higher tensile strength, bear it is higher
Tensile stress, and the appearance and extension of structural cracks can be effectively suppressed, arches overall structural strength is thus improved, so that arch knot
Structure have longer service life, higher structure ductility, stronger Structural Energy Dissipation ability, higher impact resistance, effectively
Enhancing arches overall structural strength inhibits structure crack, prevents rubble from splashing, to protection, protection in arch protection works
Personnel and the safety of goods and materials play an important role；It for its self weight of the BFRP grid material of reinforcing and takes up space and reinforcing bar simultaneously
Concrete arch is compared to negligible；Special equipment, simple process are not needed when construction, it is easy to accomplish, it is at low cost.Later period dimension
Etching problem is not likely to produce in shield
Detailed description of the invention:
Fig. 1 is the structural schematic diagram of the prefabricated arches of the utility model.
Fig. 2 is the structural schematic diagram of BFRP grid material used in an embodiment of the present invention.
Fig. 3 be reinforcing member straddle and on being compressed on BFRP grid material and bonding concrete arch surface on structure
Schematic diagram.
Fig. 4 is the A direction view of prefabricated arches shown in Fig. 1.
Fig. 5 is cross-sectional view when two prefabricated arches shown in FIG. 1 are connected with each other.
Fig. 6 is structural schematic diagram figure when two prefabricated arches shown in FIG. 1 are connected with each other.
Fig. 7 is a kind of structural schematic diagram of reinforcing member.
Fig. 8 is the structural schematic diagram of another reinforcing member.
Specific embodiment:
With reference to the accompanying drawing and specific embodiment is further described the utility model.
Such as Fig. 1, a specific prefabricated arches, mainly by reinforced concrete arch 1, BFRP grid material 4, gluing oxidant layer 2
It is formed with several reinforcing members 3.BFRP grid material 4 encircles surface by the inside that gluing oxidant layer 2 is bonded in reinforced concrete arch 1
On, several reinforcing members 3 are distributed on BFRP grid material 4, and each reinforcing member 3, which at least straddles, is forming the one of BFRP grid material
On root fibre bundle, and BFRP grid material is suppressed on arch face, forming corresponding reinforcing position in the concrete arch 1 being bonded.
Such as Fig. 2, BFRP grid material 4 is woven by the meridional fibers 4a of length direction and the parallel fiber 4b of width direction
At the meridional fibers 4a and parallel fiber 4b of the present embodiment are the identical flat line of size, i.e. rectangular in cross-section, and thickness
It is the 1/8~1/6 of width.When the span of arch structure increases, the ability of carrying opposite can weaken, and the utility model is not for
Same span scope, gives the thickness of corresponding BFRP grid material, the substantially thickness of meridional fibers 4a or parallel fiber 4b
Degree, when the span (span) of reinforced concrete arch (1) is 1~2m, the fiber thickness of corresponding BFRP grid material (2) is 1
~3mm.When the span (span) of reinforced concrete arch (1) is 2~3m, the fiber thickness of corresponding BFRP grid material (2)
For 3~5mm.When the span (span) of reinforced concrete arch (1) is 3~5m, the fiber of corresponding BFRP grid material (2) is thick
Degree is 5~10mm.
Such as Fig. 3, BFRP grid is evenly arranged on for reinforcing the reinforcing member 3 Nian Jie with reinforced concrete arch 1 of BFRP grid material 4
On material 4, a preferred embodiment is the infall straddled each reinforcing member 3 in grid material, and the friendship of every row
Be at fork it is interlaced, in order to reach preferable consolidation effect, every square decimeter of reinforcing position is no less than 20.
As its dimensional directions along length L is sequentially connected when constructing tunnel with the arches of the utility model, is by Fig. 4-6
The quality and efficiency of positioning, the connection of two adjacent arches are improved, the present embodiment is respectively set at the both ends along length L of arches
Connecting groove 11 and connection bump 12, such as Fig. 4, the structure of connecting groove 11 and connection bump 12 is adapted.When connection, connect convex
It rises in 12 insertion connecting grooves 11, and the end face of connection bump 12 is resisted against in the groove bottom in connecting groove 11.For convenient for slotting
It connects, the connecting groove 11 of the present embodiment is semi open model groove, and the depth of connecting groove 11 is less than the correspondence of connection bump 12
Depth, so that connection bump 12, which is fully inserted into after connecting groove 11, also leaves gap 13, which just can be filled concrete
6, the concrete 6 not only be used for adjacent two arches connection, but also can closed gap, prevent the infiltration of water.
Referring to Fig. 3 and Fig. 5 is combined, above-mentioned reinforcing member 3 includes anchor bolt 3b and press strip 3a, and the press strip 3a of the present embodiment is waist
Shape item, the both ends of the kidney-shaped item are at least respectively equipped with a hole, and anchor bolt 3b passes through the hole and is fixed on reinforced concrete arch 1, and
Press strip 3a is straddled on the fiber for being compressed on and forming BFRP grid material, the present embodiment is to straddle to be compressed on meridional fibers 4a and latitude
Line fiber 4b infall.
If Fig. 6, anchor bolt 3b may include tapping screw 3b1 and expansion tube 3b2, steel need to be bonded with when using reinforcing member 3
Reinforced concrete arch 1 is equipped with fixation hole compatible with the connection pitch of holes on press strip 3a, and expansion tube 3a2 is embedded in this and is fixed
Kong Zhong is allowed to be integrally formed with reinforced concrete arch 1, and the connecting hole spiral that tapping screw 3b1 is passed through on press strip 3a is connected to pair
It answers in expansion tube, pressure is imposed on to BFRP grid material by press strip 3a, be allowed to preferably Nian Jie with reinforced concrete arch 1.
Such as the spigot 3b5 that Fig. 7, anchor bolt 3b may also comprise bolt 3b3, nut 3b4 and formed by chemical drugs pipe, by fixation hole
It cleans out, chemical pencil is placed in fixation hole prior to bolt 3b3, and by by vinylite, quartz particles and solidification
Bolt 3b3, is fixed in fixation hole, spiral shell by the spigot 3b5 that the chemical pencil of agent composition is formed in fixation hole by spigot 3b5
The upper end bolt 3b3, which is stretched out outside fixation hole and worn, connects corresponding connecting hole back spin connected nut on press strip, equally to reach through press strip 3a
Pressure is imposed on to BFRP grid material, the purpose for keeping BFRP grid material more preferably be bonded with reinforced concrete arch 1.
Reinforced concrete arch 1 in the utility model is Nian Jie with BFRP grid material 4 by gluing oxidant layer 2, makes Prefabricated arch
The overall structure performance of part greatly improves, thus gluing oxidant layer play the role of it is very important.The gluing oxidant layer of the utility model
Including the primer layer and solid glue layer set gradually in outward direction from the surface of reinforced concrete arch, glue-line coated in reinforcing bar by mixing
Substrate glue on the interior arch surface of solidifying soil arch is formed, and solid glue layer is formed the thickness of primer layer by the dipping glue being coated on primer layer
For 0.5~1mm, the solid glue layer with a thickness of 1~2mm.
Above-mentioned prefabricated arches make in the steps below, and on the make substrate glue used is that wuhan yangtze river reinforcement technique is limited
The YZJ-CD substrate glue of company's production, dipping glue are made by 2 the method for embodiment.Prefabricated arches specific production step is as follows:
1) concrete casting that reinforcing bar, that is, screw-thread steel is placed in mold, and will stir evenly by screwing steel bars concrete arch
In the mold, reinforced concrete arch is formed after concrete setting is dry.
2) flatness reconditioning is carried out to the interior arch surface of reinforced concrete arch, makes flatness no more than 5mm/m, and to reconditioning
Arch surface dust afterwards.
3) substrate glue is uniformly applied to arch surface, smearing thickness is 0.5~1mm, the substrate glue touch dry on surface to be encircleed
After dry, then uniformly smear dipping glue.
4) by with the compatible BFRP grid material in arch surface along arch surface two sides bottom end with roller respectively to vault to
Upper rolling is pasted onto BFRP grid material sufficiently on interior arch surface, and makes to impregnate glue full penetration into BFRP grid material.
It is rolled upwards to vault respectively with roller along the bottom end of arch surface two sides, not only improves BFRP grid and abutted to the curved surface of arch,
It avoids the grid as caused by BFRP grid stiffness by itself from generating the phenomenon that separating with arching surface, can also prevent from unidirectionally rolling
Caused by BFRP grid deviate initial alignment.
5) after glue dry to touch to be impregnated, the mark of bore position is carried out, and drill one by one to the bore position of mark, shape
At several fixation holes；
6) reinforcing member is straddled by fixation hole and is compressed on BFRP grid material by reinforcing member；
7) protective glue is uniformly smeared in BFRP grid material upper epidermis, forms protective layer, the protective layer thickness and BFRP net
The thickness of lattice is identical, and cannot be less than 5mm.
Claims (9)
1. a kind of prefabricated arches, it is characterised in that: including reinforced concrete arch (1), BFRP grid material (4), gluing oxidant layer (2)
With several reinforcing members (3), the BFRP grid material is bonded in the surface of reinforced concrete arch, each reinforcing by gluing oxidant layer
Part at least straddles on a fibre bundle for forming BFRP grid material, and suppresses BFRP grid material in the concrete being bonded
The surface of arch forms corresponding reinforcing position.
2. prefabricated arches according to claim 1, it is characterised in that: each reinforcing member straddles the intersection in grid material
Place.
3. prefabricated arches according to claim 1, it is characterised in that: the chord width (span) of the reinforced concrete arch (1)
When for 1~2m, corresponding BFRP grid material (4) with a thickness of 1~3mm；The chord width (span) of the reinforced concrete arch (1)
When for 2~3m, corresponding BFRP grid material (4) with a thickness of 3~5mm；The chord width (span) of the reinforced concrete arch (1)
When for 3~5m, corresponding BFRP grid material (4) with a thickness of 5~10mm.
4. prefabricated arches according to claim 1, it is characterised in that: every square metre of reinforcing position is no less than 20.
5. prefabricated arches according to claim 4, it is characterised in that: the reinforcing position, which is distributed in, is bonded in armored concrete
On the BFRP grid material (4) for encircleing the surface of (1).
6. prefabricated arches according to claim 1, it is characterised in that: the both ends of the prefabricated arches length direction are set respectively
Have and is used for the prefabricated arches sequentially connected connecting groove and connection bump along its length, the connecting groove and connection bump
It is adapted.
7. prefabricated arches according to claim 1, it is characterised in that: the reinforcing member (3) includes anchor bolt and press strip (3b),
The both ends of the press strip (3b) are at least respectively equipped with a hole, and the hole that anchor bolt (3a) passes through on press strip is fixed on reinforced concrete arch
(1) on, and press strip (3b) is straddled on at least one fibre bundle for being compressed on and forming BFRP grid material.
8. prefabricated arches according to claim 7, it is characterised in that: the reinforced concrete arch (1) is equipped with and press strip
The compatible fixation hole of pitch of holes is connected on (3b)；The anchor bolt (3a) includes tapping screw and expansion tube, and expansion tube is fixed on
In the fixation hole, the connecting hole spiral that tapping screw passes through on press strip is connected in corresponding expansion tube；Or including bolt, nut
With the spigot formed by chemical mode, bolt is fixed in the fixation hole by spigot, and upper end, which is stretched out outside fixation hole and worn, connects pressure
Corresponding connecting hole back spin connected nut on item.
9. prefabricated arches according to claim 1-8, it is characterised in that: the gluing oxidant layer (2) includes from steel
The primer layer and solid glue layer that the surface of reinforced concrete arch is set gradually in outward direction；The primer layer is by being coated in reinforced concrete
Substrate glue on the interior arch surface of soil arch is formed, and the solid glue layer is formed by the dipping glue being coated on primer layer；Primer layer
With a thickness of 0.5~1mm, solid glue layer with a thickness of 1~2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821465563.8U CN208777448U (en) | 2018-09-07 | 2018-09-07 | Prefabricated arch piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821465563.8U CN208777448U (en) | 2018-09-07 | 2018-09-07 | Prefabricated arch piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208777448U true CN208777448U (en) | 2019-04-23 |
Family
ID=66160296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821465563.8U Active CN208777448U (en) | 2018-09-07 | 2018-09-07 | Prefabricated arch piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208777448U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109138162A (en) * | 2018-09-07 | 2019-01-04 | 中国人民解放军陆军工程大学 | Prefabricated arch part and manufacturing method thereof |
| CN110130712A (en) * | 2019-05-16 | 2019-08-16 | 中国人民解放军陆军工程大学 | High-bearing anti-seismic collapse arch structure |
| CN113700333A (en) * | 2021-09-01 | 2021-11-26 | 中国建筑第七工程局有限公司 | High-density reinforcing method for concrete integral structure |
-
2018
- 2018-09-07 CN CN201821465563.8U patent/CN208777448U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109138162A (en) * | 2018-09-07 | 2019-01-04 | 中国人民解放军陆军工程大学 | Prefabricated arch part and manufacturing method thereof |
| CN110130712A (en) * | 2019-05-16 | 2019-08-16 | 中国人民解放军陆军工程大学 | High-bearing anti-seismic collapse arch structure |
| CN110130712B (en) * | 2019-05-16 | 2024-04-30 | 中国人民解放军陆军工程大学 | High-bearing anti-seismic arch collapse structure |
| CN113700333A (en) * | 2021-09-01 | 2021-11-26 | 中国建筑第七工程局有限公司 | High-density reinforcing method for concrete integral structure |
| CN113700333B (en) * | 2021-09-01 | 2023-11-10 | 中国建筑第七工程局有限公司 | High-density reinforcement method for concrete integral structure |
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