CN107513939A - A kind of bridge concrete guardrail recycles construction method - Google Patents
A kind of bridge concrete guardrail recycles construction method Download PDFInfo
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- CN107513939A CN107513939A CN201610422402.XA CN201610422402A CN107513939A CN 107513939 A CN107513939 A CN 107513939A CN 201610422402 A CN201610422402 A CN 201610422402A CN 107513939 A CN107513939 A CN 107513939A
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- guardrail
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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
- E01D19/10—Railings; Protectors against smoke or gases, e.g. of locomotives; Maintenance travellers; Fastening of pipes or cables to bridges
- E01D19/103—Parapets, railings ; Guard barriers or road-bridges
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- Bridges Or Land Bridges (AREA)
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Abstract
The present invention relates to bridge concrete guardrail to recycle construction method, belongs to traffic safety protection field, it is comprised the following steps that：(1) processing factory's precast concrete guardrail.(2) in-situ layer bar-mat reinforcement is arranged in bridge floor.(3) part in-situ layer and block are poured.(4) concrete precast block is installed.(5) anchor bar and the pre-buried anchor slab of concrete wall are welded.(6) guardrail root mortar bridge deck pavement is poured, remaining bridge deck pavement is poured with pitch.(7) when needing to dismantle guardrail, guardrail basis is removed and removes guardrail.(8) when reusing guardrail, original guardrail is installed according to above-mentioned (2)~(6) construction method.Construction method of the present invention is simple, reasonable, construction is easy; it can be good at being reused bridge concrete guardrail; being one for reconstruction and extension project reduces cost, simplifies the mode of construction, while also complies with the engineering construction theory of " resources conservation and environmental protection ".
Description
Technical field
The present invention relates to bridge concrete guardrail to recycle construction method, belongs to traffic safety protection field.
Background technology
In recent years, China's expressway construction is fast-developing, and highway builds up and runed the trip for greatly facilitating the masses and various regions on the way
Economic development.But with the rapid growth of China's economy and flourishing for highway transportation cause, the volume of traffic increases rapidly, particularly large-scale heavy duty car
Increase, directly result in the increase of highway communication facility frequency of use and load, the highway much built in early days can not adapt at present
The operation demand of the volume of traffic, according to incompletely statistics, in the highway built before 2004, about 30,000 kilometers have been enter into reorganization and expansion rank
Section.
At present, concrete guardrail manufacture craft is divided into cast-in-place and prefabricated, precast concrete guardrail foundation anchor power Shortcomings, causes guardrail protective
Can be relatively low, it is poor to oversize vehicle protection, bridge section should not be applied to；Cast-in-situ bridge concrete guardrail concrete foundation is connected firmly, and can reach
Compared with high-protection level, but construction method is complex, is not easy to site operation, and it is usually that destructiveness is removed to be removed after installing, not reproducible utilization.
Based on this, propose that a kind of bridge concrete guardrail recycles construction method.
The content of the invention
The present invention proposes that a kind of bridge concrete guardrail recycles construction method, bridge concrete guardrail is had cast in place process guardrail function of safety protection concurrently
Locomotive function is conveniently removed with precasting process guardrail, realizes that the repetition of guardrail recycles, the temporary guard rail that can be applied not only in reconstruction and extension project, also
Newly building bridge is applicable to, the service life of bridge concrete guardrail is greatly extended, reduces the waste of material in engineering construction, meet " resource
The engineering construction theory of saving and environmental protection ".
To achieve the above object, technical scheme is as follows：
The bridge concrete guardrail recycles construction method specific steps：
(1) concrete precast block is prefabricated pours；
(2) transverse steel in bridge floor in-situ layer and the longitudinal reinforcement in non-construction groove in-situ layer and shearing resistance block are arranged；
(3) non-construction groove in-situ layer and shearing resistance block and reserved construction groove are poured；
(4) concrete precast block is installed on the non-construction groove in-situ layer of shearing resistance block side, and makes the pre-buried reserved construction groove of anchor slab side direction,
Then it is longitudinally connected between connection concrete precast block；
(5) arrange anchor bar in reserved construction groove and weld its one end and pre-buried anchor slab, by the other end and in-situ layer of anchor bar
Transverse steel welds, longitudinal reinforcement in the groove in-situ layer of arrangement construction afterwards；
(6) pouring construction groove in-situ layer, paved layer is poured using mortar, pitch pours bridge deck pavement；
(7) guardrail dismantle when, remove guardrail basis connection and it is longitudinally connected, remove concrete precast block；
(8) it is according to above-mentioned (2)~(6) step that the connection of original guardrail basis is upper when recycling concrete precast block.
Further, the step (1)：Pre-buried dowel, pre-buried anchor slab and longitudinally connected pre-buried part, pre-buried dowel built in concrete precast block
Two-sided welding is used with pre-buried anchor slab, and pre-buried anchor slab side is exposed outside concrete precast block；
Further, first pre-buried anchor slab and longitudinally connected preburied component are positioned, then by the main body reinforcing bar point in pre-buried dowel and concrete precast block
Weldering, last casting concrete prefabricated section；
Further, the step (4)：It is consistent that concrete precast block will adjust alignment coordination when installing, avoid the occurrence of be uneven, front and rear projection
Situation, adjust it is linear after reconnect it is longitudinally connected；
Further, the step (5)：Anchor bar carries out two-sided welding with pre-buried anchor slab exposed lateral side, and anchor bar and transverse steel are spot welding.
Further, the step (6)：Before paved layer pours, preservative treatment is carried out to pre-buried anchor slab and anchor bar.
Further, the step (7)：Paved layer is cut using electric hammer, and anchor bar is cut off to remove guardrail base using flame cutter
Plinth connects, and can not destroy concrete prefabricated block main body during construction.
Further, the step (8)：When basis connection is carried out to concrete precast block again, anchor bar and the original that staggers during the welding of pre-buried anchor slab
Welding position.
Compared with prior art, beneficial effects of the present invention
The bridge concrete guardrail of the present invention recycles construction method, enhances bridge concrete guardrail reuse ratio, and general general work will soon be grasped
Work progress, easy construction, cost-effective, environmental protection.
The bridge concrete guardrail of the present invention recycles construction method, does not destroy guardrail wall body structure in work progress, ensure that integrality and intensity.
The bridge concrete guardrail of the present invention recycles construction method, and pre-buried anchor slab can be used for multiple times, service life length, easy to maintain.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme of patent of the present invention, the required accompanying drawing used in embodiment will be briefly described below：
Fig. 1 is that the bridge concrete guardrail of the present invention recycles the schematic diagram of construction method step (1) process
Fig. 2 is that the bridge concrete guardrail of the present invention recycles the schematic diagram of construction method step (2) process
Fig. 3 is that the bridge concrete guardrail of the present invention recycles the schematic diagram of construction method step (3) process
Fig. 4 is that the bridge concrete guardrail of the present invention recycles the schematic diagram of construction method step (4) process
Fig. 5 is that the bridge concrete guardrail of the present invention recycles the schematic diagram of construction method step (5) process
Fig. 6 is that the bridge concrete guardrail of the present invention recycles the schematic diagram of construction method step (6) process
Fig. 7 is that the bridge concrete guardrail of the present invention recycles the schematic diagram of construction method step (7) process
Fig. 8 is that the bridge concrete guardrail of the present invention recycles the schematic diagram of construction method step (8) process
The bridge concrete guardrail that Fig. 9 is the present invention recycles construction method construction process figure.
Marked in figure as follows：
1. concrete precast block, 2. pre-buried dowels, 3. pre-buried anchor slabs, 4. is longitudinally connected, 5. anchor bars, 6. shearing resistance blocks, 7. paved layers,
8. bridge deck pavement, 9. in-situ layers (the non-construction groove in-situ layers of 9a., 9b. construction grooves in-situ layer), (10a. transverse steels, 10b. are indulged 10. bar-mat reinforcements
To reinforcing bar), 11. beam slabs.
Embodiment
With reference to test example and embodiment, the present invention is described in further detail.But this should not be interpreted as to the above-mentioned theme of the present invention
Scope be only limitted to following embodiment, it is every that the scope of the present invention is belonged to based on the technology that present invention is realized.
Embodiment 1
If Fig. 9 is that bridge concrete guardrail recycles construction method flow chart.
The making of recycling bridge concrete guardrail and the implementation installed first are carried out first.
(1) first concrete precast block 1 carry out it is prefabricated, to the main body reinforcing bar of concrete precast block 1, pre-buried anchor slab 3, pre-buried dowel 2 and longitudinal direction
Connection 4 is positioned, and pre-buried anchor slab 3 and pre-buried dowel 2 carry out two-sided welding, main body reinforcing bar and the pre-buried spot welding of dowel 2, then casting concrete,
And notice that the pre-buried side of anchor slab 3 will be exposed to outside concrete precast block 1, as shown in Figure 1；
(2) the transverse steel 10a in bridge floor in-situ layer 9, vertical in non-construction groove in-situ layer 9a and shearing resistance block 6 is arranged by the way of the colligation
To reinforcing bar 10b, as shown in Figure 2；
(3) non-construction groove in-situ layer 9a and shearing resistance block 6 are poured, forms reserved construction groove, as shown in Figure 3；
(4) after concrete precast block 1 is transported to scene, installation concrete precast block 1 on shearing resistance block 6 is positioned at by lifting, and make pre-buried anchor slab
Towards reserved construction groove, concrete precast block 1 will adjust that alignment coordination is consistent when installing for 3 sides, avoid the occurrence of be uneven, front and rear raised feelings
Condition, then connection square steel tube in back is installed, connect longitudinally connected 4 between concrete precast block 1, so as to form guardrail entirety, as shown in Figure 4；
(5) arrange anchor bar 5 in reserved construction groove and its one end and the pre-buried exposed lateral side of anchor slab 3 are subjected to two-sided welding, by anchor bar 5
The other end and in-situ layer 9 in transverse steel 10a spot welding, longitudinal reinforcement 10b in the groove in-situ layer 9b of arrangement construction afterwards, as shown in Figure 5；
(6) preservative treatment is carried out to pre-buried anchor slab 3 and anchor bar 5, pouring construction groove in-situ layer 9b, paved layer 7 is poured using mortar,
Pitch pours bridge deck pavement 8, as shown in Figure 6.
What secondly the recycling bridge concrete guardrail of progress reused removes and installs implementation.
(7) connection of guardrail basis is removed, mortar pave-load layer 7 is removed using small electric hammer quartering chisel, and anchor bar 5 is cut off using flame cutter, is solved
Except longitudinally connected 4, concrete precast block 1 is removed, as shown in fig. 7, paying attention to that during construction the main body of concrete precast block 1 can not be destroyed；
(8) again install concrete precast block 1, according to above-mentioned (2)~(6) step connection guardrail basis, although note that anchor bar 5 with it is pre-buried
Anchor slab 3 staggers former welding position when welding, as shown in Figure 8.
Claims (8)
1. bridge concrete guardrail recycles construction method, it is characterised in that the bridge concrete guardrail recycles construction method to comprise the following steps that：
(1) concrete precast block (1) is prefabricated pours；
(2) transverse steel (10a) in bridge floor in-situ layer (9) and the longitudinal reinforcement (10b) in non-construction groove in-situ layer (9a) and shearing resistance block (6) are arranged；
(3) non-construction groove in-situ layer (9a) and shearing resistance block (6) and reserved construction groove are poured；
(4) concrete precast block (1) is installed on the non-construction groove in-situ layer (9a) of shearing resistance block (6) side, and pre-buried anchor slab (3) side is set then to connect longitudinally connected (4) between concrete precast block (1) towards reserved construction groove；
(5) arrange anchor bar (5) in reserved construction groove and weld its one end and pre-buried anchor slab (3), transverse steel (10a) in the other end of anchor bar (5) and in-situ layer (9) is welded, groove in-situ layer (9b) the interior longitudinal reinforcement (10b) of arrangement construction afterwards；
(6) pouring construction groove in-situ layer (9b), paved layer (7) is poured using mortar, pitch pours bridge deck pavement (8)；
(7) when guardrail is dismantled, the connection of guardrail basis and longitudinally connected (4) is removed, remove concrete precast block (1)；
(8) it is according to above-mentioned (2)~(6) step that the connection of original guardrail basis is upper when recycling concrete precast block (1).
2. bridge concrete guardrail according to claim 1 recycles construction method, it is characterised in that the step (1)：The pre-buried part of pre-buried dowel (2), pre-buried anchor slab (3) and longitudinally connected (4) built in concrete precast block (1), pre-buried dowel (2) and pre-buried anchor slab (3) use two-sided welding, pre-buried anchor slab (3) side it is exposed in concrete precast block (1) outside.
3. bridge concrete guardrail according to claim 2 recycles construction method, it is characterised in that：First the preburied component of pre-buried anchor slab (3) and longitudinally connected (4) is positioned, then by the main body reinforcing bar spot welding in pre-buried dowel (2) and concrete precast block (1), last casting concrete prefabricated section (1).
4. bridge concrete guardrail according to claim 1 recycles construction method, it is characterised in that the step (4)：Concrete precast block (1) will adjust that alignment coordination is consistent when installing, avoid the occurrence of be uneven, front and rear raised situation, adjust it is linear after reconnect longitudinally connected (4).
5. bridge concrete guardrail according to claim 1 recycles construction method, it is characterised in that the step (5)：Anchor bar (5) carries out two-sided welding with pre-buried anchor slab (3) exposed lateral side, and anchor bar (5) and transverse steel (10a) are spot welding.
6. bridge concrete guardrail according to claim 1 recycles construction method, it is characterised in that the step (6)：Before paved layer (7) pours, preservative treatment is carried out to pre-buried anchor slab (3) and anchor bar (5).
7. bridge concrete guardrail according to claim 1 recycles construction method, it is characterised in that the step (7)：Paved layer (7) is cut using electric hammer, and using flame cutter cuts off anchor bar (5) to remove the connection of guardrail basis, concrete precast block (1) main body can not be destroyed during construction.
8. bridge concrete guardrail according to claim 1 recycles construction method, it is characterised in that the step (8)：When basis connection is carried out to concrete precast block (1) again, anchor bar (5) and former welding position of staggering during pre-buried anchor slab (3) welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610422402.XA CN107513939A (en) | 2016-06-16 | 2016-06-16 | A kind of bridge concrete guardrail recycles construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610422402.XA CN107513939A (en) | 2016-06-16 | 2016-06-16 | A kind of bridge concrete guardrail recycles construction method |
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| Publication Number | Publication Date |
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| CN107513939A true CN107513939A (en) | 2017-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610422402.XA Pending CN107513939A (en) | 2016-06-16 | 2016-06-16 | A kind of bridge concrete guardrail recycles construction method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108867480A (en) * | 2018-07-16 | 2018-11-23 | 广州市市政工程设计研究总院有限公司 | A kind of prefabricated assembled FRP tendons material concrete side crashproof guardrail of steel plate connection |
| CN109750598A (en) * | 2018-12-18 | 2019-05-14 | 中交第一航务工程局有限公司 | A kind of readily removable New Jersey safety barrier structure and construction method removed |
| CN110453600A (en) * | 2019-07-26 | 2019-11-15 | 中交公路规划设计院有限公司 | Bridge guardrail prefabricated unit, Bridge guardrail construction method and bridge |
| CN113293700A (en) * | 2021-05-08 | 2021-08-24 | 南京交通职业技术学院 | Urban bridge L-shaped marble railing and design and construction method |
| CN113463682A (en) * | 2021-05-27 | 2021-10-01 | 中铁十九局集团第三工程有限公司 | Corrugated plate retaining wall structure and construction method thereof |
| CN114673083A (en) * | 2022-05-25 | 2022-06-28 | 中铁上海设计院集团有限公司 | Road U-shaped groove structure with anti-collision effect and construction method |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108867480A (en) * | 2018-07-16 | 2018-11-23 | 广州市市政工程设计研究总院有限公司 | A kind of prefabricated assembled FRP tendons material concrete side crashproof guardrail of steel plate connection |
| CN108867480B (en) * | 2018-07-16 | 2024-01-23 | 广州市市政工程设计研究总院有限公司 | Steel plate connection prefabricated FRP rib concrete side anti-collision guardrail |
| CN109750598A (en) * | 2018-12-18 | 2019-05-14 | 中交第一航务工程局有限公司 | A kind of readily removable New Jersey safety barrier structure and construction method removed |
| CN110453600A (en) * | 2019-07-26 | 2019-11-15 | 中交公路规划设计院有限公司 | Bridge guardrail prefabricated unit, Bridge guardrail construction method and bridge |
| CN110453600B (en) * | 2019-07-26 | 2024-05-17 | 中交公路规划设计院有限公司 | Bridge guardrail prefabricated unit, bridge guardrail construction method and bridge |
| CN113293700A (en) * | 2021-05-08 | 2021-08-24 | 南京交通职业技术学院 | Urban bridge L-shaped marble railing and design and construction method |
| CN113463682A (en) * | 2021-05-27 | 2021-10-01 | 中铁十九局集团第三工程有限公司 | Corrugated plate retaining wall structure and construction method thereof |
| CN114673083A (en) * | 2022-05-25 | 2022-06-28 | 中铁上海设计院集团有限公司 | Road U-shaped groove structure with anti-collision effect and construction method |
| CN114673083B (en) * | 2022-05-25 | 2023-12-22 | 中铁上海设计院集团有限公司 | Highway U-shaped groove structure with anti-collision effect and construction method |
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Application publication date: 20171226 |