CN108589939A - The continuous construction method of concrete structure seam crossing fiber - Google Patents
The continuous construction method of concrete structure seam crossing fiber Download PDFInfo
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- CN108589939A CN108589939A CN201810404566.9A CN201810404566A CN108589939A CN 108589939 A CN108589939 A CN 108589939A CN 201810404566 A CN201810404566 A CN 201810404566A CN 108589939 A CN108589939 A CN 108589939A
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- concrete
- fiber
- seam crossing
- seam
- construction method
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses the continuous construction methods of concrete structure seam crossing fiber, pore according to the design layout spacing in the template of first casting concrete seam crossing, after the completion of casting concrete pours in the ban and before the concrete initial set close to seam crossing, the partial-length of fiber is inserted by pore in not solidified concrete, after concrete hardening and removing the template of seam crossing, the remainder length for being not inserted into concrete is exposed outside the surface of concrete seam, after pouring seam other side concrete again, fiber is connected to successively between concrete twice, so that the fiber in gradation casting concrete seam crossing is continuous.The present invention fundamentally solves the problems, such as that concrete structure is discontinuous in seam crossing fiber, improve seam properties without going through the joint form for changing seam shape, the encryption complexity such as arrangement of reinforcement or deformed steel flats, the method of the present invention has reduction project cost, it is easy for construction, material saving and structural behaviour are excellent, there is preferable promotion prospect.
Description
Technical field
The present invention relates to technical field of civil engineering, the especially continuous construction method of concrete structure seam crossing fiber.
Background technology
Concrete with fiber（Common fiber concrete, ultra-high performance concrete etc.）Due to its excellent every mechanics
Performance is widely used in civil construction field.Fiber in concrete substrate with fiber can block opening for distress in concrete
Exhibition, to make its tension, bending resistance, shearing strength improve, shock resistance, it is antifatigue, split rear toughness and durability also and have larger change
It is kind.No matter seam is all difficult to avoid that for precast construction or gradation pouring structure（Including Construction Joint, boundary seam etc.）'s
In the presence of this has also related to the problem of new-old concrete interface connects.Especially for the concrete structure with fiber, seam
In the presence of fiber will be caused discontinuous, to make seam become its weak part.
Common joint form has carvel joint, sawtooth seam, step-lap laminated, T and G joint etc. in engineering.Carvel joint due to
Its construction is simple, application is wider, but its seam crack-resisting intensity is insufficient, is easily damaged；Sawtooth seam and step-lap laminated are in carvel joint
On the basis of increase the contact area at seam interface, to increase the breaking resistance of seam crossing, but enhancing effect it is not apparent enough and
Construction formwork is complicated；T and G joint, the interlock action constructed further through tongue and groove on the basis of increasing seam contact area make to connect
It stitches the tensile stress born and is partially converted into shear stress, further improve the breaking resistance of seam, but the same difficulty for increasing construction
Degree, and the quality of seam is difficult to ensure.
Though these above-mentioned seam construction measures can partly improve joint strength, fail fundamentally to solve due to seam crossing
The seam crack-resisting strength reduction problem that fiber is caused by artificial " blocking ", and the advantage of structure and material itself is not played.
Invention content
In view of the deficiencies in the prior art, the purpose of the present invention is to provide concrete structure seam crossing fibers continuously to construct
Method, this method can make concrete seam crossing fiber in gradation casting process keep continuous, while seam crack-resisting intensity is high, by
Power is reasonable, and easy for construction.
To achieve the above object, the present invention uses following technical scheme：
The continuous construction method of concrete structure seam crossing fiber, by design spacing in the template of first casting concrete seam crossing
Pore is arranged, after the completion of casting concrete pours in the ban and before the concrete initial set close to seam crossing, by the part of fiber
Length is inserted by pore in not solidified concrete, after concrete hardening and removing the template of seam crossing, is connect in concrete
The remainder length for being not inserted into concrete is exposed outside surface at seam, after pouring seam other side concrete again, fiber
It is connected to successively twice between concrete so that continuous in the fiber of gradation casting concrete seam crossing.
Further, the pore diameter is more than fibre diameter, and pore diameter is less than 2mm.
Further, the pore in seam crossing template is arranged in length and breadth by scheduled spacing.
Further, the shape of the fiber is flat shape, screw thread shape or corrugated.
Further, the concrete of the seam crossing is by normal concrete, fiber concrete, high performance concrete, superelevation
Performance concrete pours.
Construction method of the present invention specifically includes following steps：
1）The template of the first casting concrete of installation, the wherein template of seam crossing are pressed the position that design fiber is inserted into and are bored before the mounting
Go out pore；
2）Fiber is inserted into from the pore of seam crossing template in concrete by formwork for placing inner concrete before concrete setting；
3）The concrete of above-mentioned cast is conserved；
4）Form removal exposes the remainder length that fiber is not inserted into concrete in concrete joint outer side surface；
5）Concrete dabbing at abutment joint, and surface laitance and unconsolidated formation are removed, it is used in combination compressor to blow down the dust of seam crossing；
6）Template installation, the maintenance of casting concrete and concrete for carrying out after-pouring concrete region, so that difference is poured
It is integral to build the connection of batch concrete；
If there are multiple seams, by above-mentioned construction method cycle applications, entire engineering is completed.
Further, step 2）In, the length that fiber is inserted into concrete is 0.2 ~ 0.6 times of fibre length.
Compared with prior art, the invention has the advantages that：Concrete structure is fundamentally solved in seam
Locate the discontinuous problem of fiber, it is not necessary to by change seam shape, encrypt the complexity such as arrangement of reinforcement or deformed steel flats joint form come
Improve seam properties, the method for the present invention has reduction project cost, and easy for construction, material saving and structural behaviour are excellent, have preferably
Promotion prospect.
Description of the drawings
The present invention is described in further details below in conjunction with the drawings and specific embodiments：
Fig. 1 is steel form schematic diagram；
Fig. 2 is the template schematic diagram of installation form, the good fiber of punching block plate hole interpolation；
Fig. 3 is that concrete pours and conserve schematic diagram for the first time；
Fig. 4 is form removal and steel form schematic diagram；
Fig. 5 is after-pouring concrete blinding scheme of installation；
Fig. 6 is that after-pouring concrete is poured and conserved schematic diagram；
Fig. 7 is after-pouring concrete form removal schematic diagram.
Specific implementation mode
Embodiment 1, as shown in one of Fig. 1-7, the continuous construction method of concrete structure seam crossing fiber of the present invention, formerly
The template of casting concrete seam crossing 4（The template of seam crossing 4 is steel form 2）Upper pore according to the design layout spacing, pours in the ban
After the completion of concreting and before 5 initial set of concrete close to seam crossing, the partial-length of fiber 1 is inserted by pore
In not solidified concrete 5, after concrete 5 hardens and removes the steel form 2 of seam crossing 4, in the table of 5 seam crossing 4 of concrete
The remainder length for being not inserted into concrete 5 is exposed outside face, after pouring seam other side concrete 6 again, fiber 1 is connected to
Successively twice between concrete 5,6 so that continuous in the fiber 1 of gradation casting concrete 5,6 seam crossings 4.
In embodiment 1, pore diameter is more than 1 diameter of fiber, and pore diameter is less than 2mm.Pore on steel form 2 is pressed
Scheduled spacing arranges that the thickness of steel form 2 is 5mm ~ 10mm, is no more than drill bit institute drilling depth, the size of steel form 2 is in length and breadth
The size of 4 section of seam crossing.The shape of fiber 1 is flat shape, screw thread shape or corrugated.The concrete 5,6 of seam crossing 4 is by common
Concrete, fiber concrete, high performance concrete, ultra-high performance concrete pour.
The continuous construction method of concrete structure seam crossing fiber of the present invention specifically includes following steps：
1）The template 3 of the first casting concrete of installation, steel form 2 are made in the seam crossing 4 poured by several times by the methods of interlocking
Steel form 2 is fixed with template 3, and the position that wherein steel form 2 is inserted by design fiber before the mounting drills out pore；
2）Fiber 1 is inserted into from the pore of steel form 2 in concrete by 3 inner concrete 5 of formwork for placing before concrete 5 solidifies, fine
The length that dimension 1 is inserted into concrete is 0.2 ~ 0.6 times of 1 length of fiber；
3）The concrete 5 of above-mentioned cast is conserved；
4）Form removal 3 and steel form 2 expose the residue that fiber 1 is not inserted into concrete 5 on the outside of 5 joint surface of concrete
Partial-length；
5）4 concrete dabbing at abutment joint, and surface laitance and unconsolidated formation are removed, it is used in combination compressor to blow down the powder of seam crossing
Dirt, and the fiber 1 of bending is broken directly；
6）The installation of template 3, the maintenance of casting concrete 6 and concrete 6 for carrying out 6 region of after-pouring concrete, so that not
With pouring, the connection of batch concrete is integral；
If there are multiple seams, by above-mentioned construction method cycle applications, entire engineering is completed.
The embodiment of the present invention 2：Embodiment 2 is precast slab, concrete difference lies in concrete with embodiment 1
The good steel fibre of cloth is inserted in native each side of plate in advance as stated above, then is transported to scene, is installed in place, is connect in each precast slab
Each precast slab is linked to be entirety so that fiber is continuous between precast slab by cast in situs cast-in-site stripe between seam.
The advantage of the invention is that：It is easy for construction, interface can be increased by fiber content on interface and slenderness ratio
Switching performance, avoiding passing through to change interface shape, setting connector or deformed steel flats is arranged etc. to facilitate enhances interface mechanics behavior,
It is final to reduce engineering cost, and preferably ensure the performance of seam crossing structure.
The present invention is not limited to above-mentioned preferred forms, anyone can obtain other under the inspiration of the present invention
The various forms of continuous construction methods of concrete structure seam crossing fiber.All equalizations done according to scope of the present invention patent
Variation and modification, should all belong to the covering scope of the present invention.
Claims (7)
1. the continuous construction method of concrete structure seam crossing fiber, it is characterised in that：The mould of first casting concrete seam crossing
Pore according to the design layout spacing on plate, after the completion of casting concrete pours in the ban and close to seam crossing concrete initial set it
Before, the partial-length of fiber is inserted by pore in not solidified concrete, concrete hardening is waited for and removes the mould of seam crossing
After plate, the remainder length for being not inserted into concrete is exposed outside the surface of concrete seam, it is another when pouring seam again
After the concrete of side, fiber is connected to successively between concrete twice so that continuous in the fiber of gradation casting concrete seam crossing.
2. the continuous construction method of concrete structure seam crossing fiber according to claim 1, it is characterised in that：It is described thin
Bore dia is more than fibre diameter, and pore diameter is less than 2mm.
3. the continuous construction method of concrete structure seam crossing fiber according to claim 1, it is characterised in that：In seam
Pore in place's template is arranged in length and breadth by scheduled spacing.
4. the continuous construction method of concrete structure seam crossing fiber according to claim 1, it is characterised in that：The fibre
The shape of dimension is flat shape, screw thread shape or corrugated.
5. the continuous construction method of concrete structure seam crossing fiber according to claim 1, it is characterised in that：It is described to connect
Concrete at seam is poured by normal concrete, fiber concrete, high performance concrete, ultra-high performance concrete.
6. the continuous construction method of concrete structure seam crossing fiber according to claim 1, it is characterised in that：It is described to apply
Work method specifically includes following steps：
1）The template of the first casting concrete of installation, the wherein template of seam crossing are pressed the position that design fiber is inserted into and are bored before the mounting
Go out pore；
2）Fiber is inserted from the pore of seam crossing template before concrete setting and is inserted into concrete by formwork for placing inner concrete；
3）The concrete of above-mentioned cast is conserved；
4）Form removal exposes the remainder length that fiber is not inserted into concrete in concrete joint outer side surface；
5）Concrete dabbing at abutment joint, and surface laitance and unconsolidated formation are removed, and blow down the dust of seam crossing；
6）Template installation, the maintenance of casting concrete and concrete for carrying out after-pouring concrete region, so that difference is poured
It is integral to build the connection of batch concrete；
If there are multiple seams, by above-mentioned construction method cycle applications, entire engineering is completed.
7. the continuous construction method of concrete structure seam crossing fiber according to claim 6, it is characterised in that：Step 2）
In, the length that fiber is inserted into concrete is 0.2 ~ 0.6 times of fibre length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810404566.9A CN108589939A (en) | 2018-04-28 | 2018-04-28 | The continuous construction method of concrete structure seam crossing fiber |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810404566.9A CN108589939A (en) | 2018-04-28 | 2018-04-28 | The continuous construction method of concrete structure seam crossing fiber |
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| Publication Number | Publication Date |
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| CN108589939A true CN108589939A (en) | 2018-09-28 |
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| CN201810404566.9A Pending CN108589939A (en) | 2018-04-28 | 2018-04-28 | The continuous construction method of concrete structure seam crossing fiber |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109098446A (en) * | 2018-10-17 | 2018-12-28 | 中交第公路工程局有限公司 | Concrete component constructing device and concrete component construction method |
| CN109881795A (en) * | 2019-02-21 | 2019-06-14 | 福州大学 | One kind making the continuous construction method of concrete structure seam crossing fiber by different setting times |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002061296A (en) * | 2000-08-15 | 2002-02-28 | Taisei Corp | Structure of joint and construction method therefor |
| JP2002303001A (en) * | 2001-04-05 | 2002-10-18 | Taisei Corp | Method for building jointing section |
| BRPI0622165A2 (en) * | 2006-12-22 | 2011-12-27 | Marcel Arteon | Anchor for handling building elements, in particular a concrete panel |
| CN107060117A (en) * | 2017-04-25 | 2017-08-18 | 福州大学 | The continuous construction method of seam crossing fiber is realized in concrete gradation casting process |
| CN107675812A (en) * | 2017-09-23 | 2018-02-09 | 福州大学 | Ultra-high performance concrete plate seam attachment structure and its construction method |
-
2018
- 2018-04-28 CN CN201810404566.9A patent/CN108589939A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002061296A (en) * | 2000-08-15 | 2002-02-28 | Taisei Corp | Structure of joint and construction method therefor |
| JP2002303001A (en) * | 2001-04-05 | 2002-10-18 | Taisei Corp | Method for building jointing section |
| BRPI0622165A2 (en) * | 2006-12-22 | 2011-12-27 | Marcel Arteon | Anchor for handling building elements, in particular a concrete panel |
| CN107060117A (en) * | 2017-04-25 | 2017-08-18 | 福州大学 | The continuous construction method of seam crossing fiber is realized in concrete gradation casting process |
| CN107675812A (en) * | 2017-09-23 | 2018-02-09 | 福州大学 | Ultra-high performance concrete plate seam attachment structure and its construction method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109098446A (en) * | 2018-10-17 | 2018-12-28 | 中交第公路工程局有限公司 | Concrete component constructing device and concrete component construction method |
| CN109881795A (en) * | 2019-02-21 | 2019-06-14 | 福州大学 | One kind making the continuous construction method of concrete structure seam crossing fiber by different setting times |
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Application publication date: 20180928 |
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