CN111118997A - Prefabricated assembled type lane plate - Google Patents
Prefabricated assembled type lane plate Download PDFInfo
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- CN111118997A CN111118997A CN202010047762.2A CN202010047762A CN111118997A CN 111118997 A CN111118997 A CN 111118997A CN 202010047762 A CN202010047762 A CN 202010047762A CN 111118997 A CN111118997 A CN 111118997A
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- prefabricated
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 80
- 239000010959 steel Substances 0.000 claims abstract description 80
- 230000002787 reinforcement Effects 0.000 claims abstract description 38
- 239000000463 material Substances 0.000 claims abstract description 30
- 238000010276 construction Methods 0.000 claims abstract description 18
- 239000004568 cement Substances 0.000 claims abstract description 17
- 239000000835 fiber Substances 0.000 claims abstract description 17
- 239000002131 composite material Substances 0.000 claims abstract description 14
- 125000004122 cyclic group Chemical group 0.000 claims abstract description 4
- 238000009415 formwork Methods 0.000 claims description 8
- 239000004574 high-performance concrete Substances 0.000 claims description 3
- 238000009776 industrial production Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 abstract 1
- 239000011374 ultra-high-performance concrete Substances 0.000 description 7
- 239000004567 concrete Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 238000009417 prefabrication Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 229910052752 metalloid Inorganic materials 0.000 description 1
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- 210000002435 tendon Anatomy 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C5/00—Pavings made of prefabricated single units
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/02—Arrangement or construction of joints; Methods of making joints; Packing for joints
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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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention relates to a prefabricated assembled type track plate which comprises a prefabricated track plate body, a steel reinforcement framework and a seam area cast-in-place material, wherein a plurality of bulges are respectively arranged on the edges of two sides of the prefabricated track plate body, the steel reinforcement framework extending out of the prefabricated track plate body is arranged between the adjacent bulges, the adjacent prefabricated track plate bodies are arranged at intervals and oppositely, and the adjacent prefabricated track plate bodies and the seam area cast-in-place material form a whole through the steel reinforcement framework. The cast-in-place material of the joint area adopts a fiber cement-based composite material, and can be removed when the cast-in-place material needs to be removed on the premise of meeting the requirements of strength, waterproofness and the like, so that the prefabricated roadway plate can be recycled. The invention has definite force transmission path, is easy for industrialized and standardized production, and is convenient and rapid for field assembly; the method has the characteristics of small cast-in-place quantity, high construction efficiency, convenience for later-stage cyclic utilization, replacement and updating and the like.
Description
Technical Field
The invention belongs to the technical field of bridge engineering, and particularly relates to a prefabricated assembled type lane board suitable for roads and bridges.
Background
In recent years, the prefabrication and assembly technology is greatly popularized by the nation and is widely favored by building owners due to the characteristics of high component quality, environmental friendliness, high construction speed, high economic benefit and the like. For urban roads and bridges, the prefabrication and assembly technology can ensure the manufacturing precision of components, meet the requirements of bridge safety and durability, and successfully reduce the influence of the problems of air pollution, noise pollution, traffic jam and the like on urban residents in the road and bridge construction process. The cast-in-place roadway plate and the bridge deck plate have the problems of large cast-in-place quantity, long maintenance time, high requirement on maintenance climatic conditions and the like, so that the construction period of prefabricated roads and bridges is greatly prolonged. Therefore, based on the requirements of green building technology and building industrialization, the fully prefabricated bridge technology can be widely applied to urban bridges.
The ultra-high performance concrete (UHPC) is a new cement-based structural material with excellent performances such as ultra-high strength, ultra-high toughness (metalloid tensile strain strengthening characteristic), ultra-high durability, good construction performance and the like, which is formed by cement, mineral admixture, fine aggregate with the grain diameter less than 1mm, a high-efficiency water reducing agent and fine steel fiber. If UHPC is used to replace the common concrete structure, the phenomena of easy cracking and short service life of the common concrete bridge deck can be avoided, the concrete consumption of the bridge deck can be reduced, and the self weight of the structure can be reduced.
The traditional assembly of the prefabricated roadway plates and the bridge decks usually adopts common concrete as a wet joint grouting material, the cast-in-place wet joint needs a bottom die, and the welding or binding work of steel bars in grooves and grooves is complex, so that the assembly type bridge deck joint adopting the efficient non-shrinkage grouting material is necessary to be designed, and when the fiber cement-based composite material (ECC) is applied to the prefabricated roadway plates and the bridge decks, the prefabricated roadway plates are connected into a whole through the characteristics of high strength, high ductility, good bonding performance in a water hardening process and the like of the fiber cement-based composite material.
On the basis, how to economically and reasonably combine the fiber cement-based composite material into the structures of the prefabricated roadway plates and the bridge decks becomes a problem to be solved by breakthrough in the technical field.
Disclosure of Invention
In order to overcome the defects in the prior art, the prefabricated assembled type lane plate is provided, so that the defects that the rigidity of the road surface and the bridge surface of the conventional steel lane plate is insufficient and easy to deform and the one-time investment cost is high are overcome, the advantages that the pavement speed of the road surface and the bridge surface of the steel lane plate is high, and the prefabricated assembled type lane plate can be recycled are inherited, and the aims of prefabricating and lightening, reducing the comprehensive cost, improving the rigidity, improving the durability, accelerating the construction period, being capable of repeatedly using the prefabricated lane plate and the like are achieved.
In order to achieve the above purpose, the solution of the invention is:
the utility model provides a prefabricated assembled carriageway board, is including a plurality of prefabricated carriageway board bodies, steel reinforcement framework and the cast-in-place material of seam area that splice in proper order, the both sides edge of prefabricated carriageway board body is equipped with a plurality of archs respectively, and is adjacent be equipped with between the arch and extend the steel reinforcement framework of prefabricated carriageway board body, adjacent prefabricated carriageway board body interval and relative setting, and form wholly through steel reinforcement framework and the cast-in-place material of seam area.
In one embodiment, the protrusions of the two side edges are symmetrically distributed along the center line of the prefabricated roadway panel body.
In one embodiment, the steel reinforcement frameworks of the adjacent prefabricated lane plate bodies are arranged in a staggered mode, and certain staggered gaps are reserved between the steel reinforcement frameworks.
In one embodiment, a longitudinal splicing seam area and a steel reinforcement framework seam area are formed between the adjacent prefabricated lane plate bodies, and the longitudinal splicing seam area and the steel reinforcement framework seam area adjacent to the longitudinal splicing seam area enclose a tenon structure.
In one embodiment, formwork pouring of the cast-in-place material of the joint area is performed at the longitudinal splicing joint area and the joint area of the steel reinforcement framework, so that the adjacent prefabricated lane plate bodies are integrally formed.
In one embodiment, the two side edges of the prefabricated track board body are made into a toothed plate or tenon type.
In one embodiment, the steel reinforcement framework comprises embedded steel bars, straight steel bars or U-shaped steel bars and a sleeve connection, wherein the embedded steel bars and the straight steel bars or the U-shaped steel bars are connected through the sleeve, and later-period cyclic utilization and replacement updating are facilitated.
In one embodiment, the prefabricated lane plate body and the embedded steel bars are integrally cast and molded.
In one embodiment, the prefabricated track slab body can be transported to a construction site for assembly after being subjected to formwork erection pouring and normal-temperature curing in a factory, and is suitable for standardized and industrial production.
In one embodiment, the cast-in-place material for the joint area is a fiber cement-based composite material, and the fiber cement-based composite material has good crack resistance and good bonding performance with the prefabricated lane plate, so that the aim of easy breaking and disassembly in the later period can be fulfilled under the condition of meeting the requirements of good waterproofness, durability, strength and the like.
The utility model discloses a beneficial effect that is used for road, bridge to include with prefabricated assembled carriageway board:
1) the structure is simple, the stress is clear, the material is novel, the mechanical property is good, the high tensile strength and the high compressive strength of the UHPC are fully utilized, and no steel bar or prestressed tendon can be configured in the structure; the reasonable thickness of the prefabricated lane plate body meets the design requirements of strength, rigidity, fatigue and the like, and meets the regulations of transportation size and transportation weight and the limitation of transportation equipment.
2) The prefabricated lane plate body and the embedded steel bars are integrally cast and molded, and the prefabricated lane plate body can be transported to a construction site for assembly after formwork erection and pouring normal-temperature maintenance in a factory, so that the prefabricated lane plate is suitable for standardization and industrial production.
3) The straight reinforcing bar or the U-shaped reinforcing bar of seam crossing are connected with prefabricated lane board body integrated into one piece's reservation reinforcing bar through the sleeve, when demolising, can demolish in sleeve department, then connect in the seam region through new sleeve, have realized dismantling, cyclic utilization of prefabricated lane board body.
4) When the fiber cement-based composite material is applied to joints of prefabricated assembled lane boards and bridge decks, the prefabricated lane boards are connected into a whole through the characteristics of high strength, high ductility, good bonding performance in a hydraulic process and the like of the fiber cement-based composite material.
Drawings
FIG. 1 is a schematic view showing the overall structure of a prefabricated assembled type roadway panel according to the present invention;
FIG. 2 is a schematic structural view of the prefabricated assembled roadway slab of the present invention before pouring;
FIG. 3 is a side view of a prefabricated assembled roadway panel corresponding to FIG. 1;
FIG. 4 is a constructional view of the edge tenon structure of the prefabricated roadway panel of the present invention before pouring;
FIG. 5 is an overall construction view of the edge tenon structure of the prefabricated roadway panel of the present invention;
fig. 6 is an assembly view of the prefabricated assembled type track board.
Description of reference numerals:
10-prefabricated lane board body 20-steel reinforcement framework 30-seam area cast-in-place material
11-center line 12-bulge 21-embedded steel bar of prefabricated track plate body
Joint area of 22-U-shaped steel bar or straight steel bar 23-sleeve 40-steel bar framework
50-longitudinal splice seam region
Detailed Description
Referring to fig. 1 and 3, a prefabricated assembled type roadway plate 100 includes a plurality of prefabricated roadway plate bodies 10, a reinforcement cage 20, and a seam area cast-in-place material 30, which are sequentially spliced, wherein the prefabricated roadway plate bodies 10 are made of an ultra-high performance concrete material, a plurality of protrusions 12 are respectively disposed on two side edges of each prefabricated roadway plate body 10, the reinforcement cages 20 extending out of the prefabricated roadway plate bodies 10 are disposed between adjacent protrusions 12, the adjacent prefabricated roadway plate bodies 10 are spaced and oppositely disposed, and form an integral body with the seam area cast-in-place material 30 through the reinforcement cages 20.
Referring to fig. 2, the protrusions 12 at the two side edges of the prefabricated roadway plate body 10 are symmetrically distributed along the center line 11 of the prefabricated roadway plate body.
The steel reinforcement frameworks 20 of the adjacent prefabricated lane plate bodies 10 are arranged in a staggered mode, and certain staggered gaps are reserved between the steel reinforcement frameworks.
Referring to fig. 4, a longitudinal splicing seam area 50 and a steel reinforcement framework seam area 40 are formed between adjacent prefabricated roadway plate bodies 10, and the steel reinforcement framework seam area 40 and the longitudinal splicing seam area 50 adjacent to the steel reinforcement framework seam area 40 enclose a tenon structure.
And erecting a formwork at the joint area of the longitudinal splicing seam area and the steel reinforcement framework 20 and pouring the cast-in-place material 30 at the joint area so as to enable the adjacent prefabricated lane plate bodies 10 to form a whole.
As shown in fig. 6, both side edges of the prefabricated track board body 10 are made in a toothed plate or tenon type.
Referring to fig. 5, the reinforcement cage 20 includes embedded reinforcements 21, straight reinforcements or U-shaped reinforcements 22 connected to a sleeve 23, and the embedded reinforcements 21 are connected to the straight reinforcements or U-shaped reinforcements through the sleeve 23, so as to facilitate later recycling, replacement and update.
Prefabricated lane board body 10 with the shaping is pour to embedded steel 21 integration, is convenient for transport and improves the security, the one end that prefabricated lane board body was kept away from to embedded steel 21 does not surpass the edge of arch 12, the one end that prefabricated lane board body was kept away from to straight reinforcing bar or U shaped steel muscle surpasss the edge of arch 12.
The prefabricated lane plate body 10 can be transported to a construction site for assembly after formwork erection and pouring normal-temperature maintenance in a factory, and is suitable for standardized and industrialized production.
The cast-in-place material 30 in the joint area is made of a fiber cement-based composite material, the fiber cement-based composite material has good crack resistance, and the fiber cement-based composite material has good bonding performance with the prefabricated lane plate body 10, so that the aims of easy breaking and disassembly in the later period can be fulfilled under the condition of meeting the requirements of good waterproofness, durability, strength and the like.
The invention will be further described with reference to examples of embodiments shown in the drawings.
The first embodiment is as follows:
as shown in fig. 1, the present invention firstly provides a prefabricated assembled type roadway plate 100, which comprises a prefabricated roadway plate body 10, a seam U-shaped steel bar 22, and a seam area cast-in-place material 30. Wherein:
as shown in fig. 5, specifically, the prefabricated lane plate includes a prefabricated lane plate body 10, embedded steel bars 21 (steel bars configured for the prefabricated lane plate may also be reserved for a part of the steel bars) at the tenon type edge of the prefabricated lane plate body 10, U-shaped steel bars, and a sleeve 23 connecting the U-shaped steel bars. During practical application process, prefabricated lane board body 10 tenon formula edge embedded steel 21, the U shaped steel muscle of configuration in steel skeleton joint area passes through sleeve 23 and connects embedded steel 21. The U-shaped steel bar is connected with the anchoring length in the prefabricated lane plate body and the lap joint length in the joint area of the steel bar framework, and the design requirements of specifications are met. For example, be equipped with three first embedded steel bar between the adjacent arch of one side wherein, be equipped with two second embedded steel bars between the adjacent arch of opposite side, during the concatenation, each second embedded steel bar is located adjacently between the first embedded steel bar, and reserve certain crisscross space between them, the one end that prefabricated guidance tape body was kept away from to the embedded steel bar is located the inboard at raised edge, the one end that prefabricated guidance tape body was kept away from to U shaped steel bar is located the outside at raised edge. In the construction process, the concrete operation method is as follows:
in order to facilitate field construction, the prefabricated roadway board body 10 with the tenon type edges and the embedded steel bars 21 can be poured in a prefabricating factory, then the U-shaped constructional steel bars are connected with the embedded steel bars 21 through the sleeves 23 and the tenon type edges of the prefabricated roadway board body 10, and then the prefabricated roadway board body 10 is transported to a construction site and hoisted in place. And (3) erecting a formwork in the joint area of the steel reinforcement framework 20 and the longitudinal splicing joint area, and then pouring a cast-in-place material 30 in the joint area, so that the prefabricated slab bodies spliced with each other are connected into a whole, and after the structural construction is finished, the cast-in-place material 30 in the joint area is made of a fiber cement-based composite material.
Example two:
on the basis of the first embodiment, the U-shaped steel bars at the joint are replaced by straight steel bars.
After the implementation process is completed, the following characteristics of the invention can be embodied:
1) the ultra-high performance concrete has the characteristics of ultra-high strength, ultra-high toughness, high durability and the like, but most of the research and products in China at present adopt high-temperature steam curing to realize the performance, the construction process is complex, and the ultra-high performance concrete adopted by the invention can realize the performance only by normal-temperature curing.
2) Compared with High Performance Concrete (HPC), the cast-in-place material 30 for the joint area has the advantages that the compressive strength of the fiber cement-based composite material is obviously improved, and therefore the self weight and the section size of the member can be effectively reduced. The incorporation of steel fibers increases the ductility of the prefabricated roadway panel body 10 with ultra-high performance concrete, and the flexural strength, tensile strength, and fracture energy are all significantly better than HPC. Utilize light-duty prefabricated connecting element of fiber cement base combined material preparation, reduced the material quantity, the dead weight reduces by a wide margin, is fit for prefabricated hoist and mount transportation more, will reduce field work volume and operating time, further strengthens the efficiency of construction. The prefabricated assembled type lane plate 100 for roads and bridges has two advantages: firstly, all components of the component can be detached and replaced for recycling; and secondly, all components can be prefabricated in factories, and only simple splicing and assembling are needed on a construction site.
The embodiments described above are intended to facilitate the understanding and appreciation of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the embodiments described herein, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.
Claims (10)
1. The utility model provides a prefabricated assembled lane board which characterized in that: including a plurality of prefabricated lane board bodies, steel reinforcement framework and the regional cast-in-place material of seam that splices in proper order, prefabricated lane board body adopts super high performance concrete material, the both sides edge of prefabricated lane board body is equipped with a plurality of archs respectively, and is adjacent be equipped with between the arch and extend the steel reinforcement framework of prefabricated lane board body is adjacent prefabricated lane board body interval and relative setting, and forms wholly through steel reinforcement framework and the regional cast-in-place material of seam.
2. The prefabricated assembled roadway panel of claim 1, wherein: the bulges on the two side edges are symmetrically distributed along the central line of the prefabricated lane plate body.
3. The prefabricated assembled roadway panel of claim 1, wherein: the steel reinforcement frameworks of the adjacent prefabricated lane plate bodies are arranged in a staggered mode, and certain staggered gaps are reserved between the steel reinforcement frameworks.
4. The prefabricated assembled roadway panel of claim 1, wherein: and a longitudinal splicing seam area and a steel reinforcement framework seam area are formed between the adjacent prefabricated lane plate bodies, and a tenon structure is enclosed by the longitudinal splicing seam area and the adjacent steel reinforcement framework seam area.
5. The prefabricated assembled roadway panel of claim 4, wherein: and erecting a formwork at the longitudinal splicing seam area and the joint area of the steel reinforcement framework and pouring the cast-in-place material of the joint area to enable the adjacent prefabricated lane plate bodies to form a whole.
6. The prefabricated assembled roadway panel of claim 1, wherein: and the edges of two sides of the prefabricated lane plate body are made into toothed plates or tenon type forms.
7. The prefabricated assembled roadway panel of claim 1, wherein: the steel bar framework comprises embedded steel bars, sleeves and straight steel bars or U-shaped steel bars, the embedded steel bars are connected with the straight steel bars or the U-shaped steel bars through the sleeves, and later-stage cyclic utilization and replacement updating are facilitated.
8. The prefabricated assembled roadway panel of claim 7, wherein: and the prefabricated lane plate body and the embedded steel bars are integrally cast and molded.
9. The prefabricated assembled roadway panel of claim 8, wherein: the prefabricated lane plate body can be transported to a construction site for assembly after being subjected to formwork erecting, pouring and normal-temperature curing in a factory, and is suitable for standardization and industrial production.
10. The prefabricated assembled roadway panel of claim 1, wherein: the cast-in-place material of the joint area adopts a fiber cement-based composite material which has good crack resistance and good bonding performance with the prefabricated lane plate body, so that the cast-in-place material can be easily broken and detached in the later period under the condition of meeting the requirements of good waterproofness, durability, strength and the like.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010047762.2A CN111118997A (en) | 2020-01-16 | 2020-01-16 | Prefabricated assembled type lane plate |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010047762.2A CN111118997A (en) | 2020-01-16 | 2020-01-16 | Prefabricated assembled type lane plate |
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| CN111118997A true CN111118997A (en) | 2020-05-08 |
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| CN202010047762.2A Pending CN111118997A (en) | 2020-01-16 | 2020-01-16 | Prefabricated assembled type lane plate |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111636271A (en) * | 2020-06-12 | 2020-09-08 | 广西路桥工程集团有限公司 | Recyclable ultrahigh-performance concrete assembled temporary pavement structure |
| CN112049026A (en) * | 2020-09-02 | 2020-12-08 | 湖南大学 | Prefabricated beam section, high early strength UHPC wet joint and long-span beam bridge suspension splicing construction method thereof |
| CN112127263A (en) * | 2020-08-24 | 2020-12-25 | 山东省交通规划设计院有限公司 | Prefabricated bridge deck wet joint connecting structure, prefabricated bridge and method |
| CN112983465A (en) * | 2021-03-16 | 2021-06-18 | 中铁第四勘察设计院集团有限公司 | Fully-prefabricated internal structure of shield tunnel and construction method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111636271A (en) * | 2020-06-12 | 2020-09-08 | 广西路桥工程集团有限公司 | Recyclable ultrahigh-performance concrete assembled temporary pavement structure |
| CN112127263A (en) * | 2020-08-24 | 2020-12-25 | 山东省交通规划设计院有限公司 | Prefabricated bridge deck wet joint connecting structure, prefabricated bridge and method |
| CN112049026A (en) * | 2020-09-02 | 2020-12-08 | 湖南大学 | Prefabricated beam section, high early strength UHPC wet joint and long-span beam bridge suspension splicing construction method thereof |
| CN112983465A (en) * | 2021-03-16 | 2021-06-18 | 中铁第四勘察设计院集团有限公司 | Fully-prefabricated internal structure of shield tunnel and construction method |
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