CN109811963B - L-shaped open type permanent beam formwork - Google Patents
L-shaped open type permanent beam formwork Download PDFInfo
- Publication number
- CN109811963B CN109811963B CN201910044522.4A CN201910044522A CN109811963B CN 109811963 B CN109811963 B CN 109811963B CN 201910044522 A CN201910044522 A CN 201910044522A CN 109811963 B CN109811963 B CN 109811963B
- Authority
- CN
- China
- Prior art keywords
- shaped
- template body
- occlusion
- lower template
- shaped upper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The invention discloses an L-shaped open type permanent beam template. The L-shaped upper template comprises an L-shaped upper template body and an L-shaped lower template body, wherein two ends of the bottom surface of the L-shaped upper template body are provided with limiting holes, the bottom surface of the L-shaped lower template body is provided with limiting keys matched with the limiting holes, the middle of the bottom surface of the L-shaped upper template body is provided with a group of meshing holes, the middle of the bottom surface of the L-shaped lower template body is provided with a group of meshing keys matched with the meshing holes, the L-shaped lower template body is provided with a slurry seepage groove, and a screw penetrates through screw holes in the side walls of the L-shaped upper template body and the L-shaped lower template body and is fixed through nuts. The invention can improve the adverse factors of the traditional template, improve the durability of the structure, effectively reduce the space occupied by the template and reduce the transportation cost.
Description
The technical field is as follows:
the invention belongs to the technical field of building construction, and particularly relates to an L-shaped open type permanent beam template, in particular to an L-shaped high-durability permanent beam combined template mainly used for hydraulic structures, harbor structures, industrial and civil buildings and the like.
Background art:
in the field of construction, the placement of reinforced concrete beams typically relies on either wood or steel forms. The wooden template has low manufacturing cost, light dead weight and convenient installation and construction, but has low turnover rate and short service life, is difficult to recycle and brings burden to the environment. The steel template has high turnover rate and high concrete forming quality, and steel is easy to recycle, but the steel template has heavy weight and high manufacturing cost, so the application of the steel template in the construction of a reinforced concrete structure is greatly restricted.
The common concrete has the inherent brittleness characteristics of poor toughness, low tensile strength, weak impact resistance, easy cracking, difficult crack control after cracking and the like. Further, the concrete structure always works with cracks, and if the width of the cracks is not controlled, the durability of the structure is caused, which becomes a safety hazard. The harsh environment makes the durability become a severe environment for the structure in the ocean environment, severe cold areaMainly considered, the concrete cracking can greatly reduce the durability of the structure, and the cracks can become external harmful media (such as chloride, sulfate and CO)2Etc.) penetrate into the channels of the structure, which in turn leads to reinforcement corrosion, concrete spalling, requiring frequent maintenance, greatly increasing the overall life cost of the structure.
The high-ductility fiber reinforced cement-based composite material (ECC for short) is a novel high-performance civil engineering building material, has pseudo strain hardening characteristic and a multi-crack development mechanism, under the action of uniaxial tensile load, the ultimate tensile strain can reach 3% -6% (about 300 times of concrete), and the maximum crack width under the ultimate state is only about 100 mu m, so that the penetration of harmful media can be effectively prevented, the corrosion of reinforcing steel bars can be slowed down, the possibility of corrosion cracking and the peeling of a concrete protective layer can be reduced, and the durability of the structure can be improved.
The existing ECC integral permanent formwork for the reinforced concrete beam generally has pain points such as large occupied space, difficult transportation and the like, has higher transportation cost, and limits the popularization and application of the ECC permanent formwork.
Disclosure of Invention
The invention aims to provide an L-shaped open type permanent beam formwork, which aims to improve the adverse factors of the traditional formwork, improve the durability of the structure, effectively reduce the space occupied by the formwork and reduce the transportation cost.
The above purpose is realized by the following technical scheme:
the utility model provides a permanent beam mold board of L type open type, includes L type cope match-plate pattern body and L type lower bolster body, the bottom surface both ends of L type cope match-plate pattern body are provided with spacing hole, the bottom surface of L type lower bolster body be provided with spacing hole complex spacing key, the centre of L type cope match-plate pattern body bottom surface is provided with a set of interlock hole, the centre of L type lower bolster body bottom surface be provided with a set of with interlock hole complex interlock key, be provided with the oozing groove on the L type lower bolster body, the screw rod passes the screw rod hole on the lateral wall of L type cope match-plate pattern body and L type lower bolster body and fixes through the nut.
The L-shaped open type permanent beam template is characterized in that the inner side walls of the L-shaped upper template body and the L-shaped lower template body are respectively provided with an occlusion groove.
The L-shaped open type permanent beam template is characterized in that the depth of the occlusion groove is 5mm-25mm, and the shape is circular, rectangular, polygonal or irregular.
The L-shaped open type permanent beam template is characterized in that the occlusion hole and the occlusion key are the same in shape, the cross section of the L-shaped open type permanent beam template is circular, rectangular, polygonal or irregular, the outer diameter of the occlusion key is smaller than the inner diameter of the occlusion hole by 5-25 mm, so that a gap is formed after the occlusion hole and the occlusion key are installed in a matched mode, and the height of the occlusion key is the same as the thickness of the bottom face of the L-shaped upper template body.
The L-shaped open type permanent beam template is characterized in that the limiting hole is the same as the limiting key in shape, the cross section of the L-shaped open type permanent beam template is circular, rectangular, polygonal or irregular, the inner diameter of the limiting hole is equal to the outer diameter of the limiting key, and the height of the limiting key is the same as the thickness of the bottom surface of the L-shaped upper template body.
The L-shaped open type permanent beam template is characterized in that the bottom thicknesses of the L-shaped upper template body and the L-shaped lower template body are 10-25 mm, and the side thicknesses of the L-shaped upper template body and the L-shaped lower template body are 20-50 mm.
The L-shaped open permanent beam template is characterized in that the slurry seepage groove is positioned on the bottom surface of the L-shaped lower template body, the depth of the slurry seepage groove is 2mm-10mm, the edge of the slurry seepage groove is 5mm-20mm away from the edge of the bottom surface of the L-shaped lower template body, and the slurry seepage groove is rectangular, polygonal or irregular in shape.
The L-shaped open type permanent beam template is characterized in that the screw holes are uniformly distributed on the side surfaces of the L-shaped upper template body and the L-shaped lower template body, the hole diameter is 10-25 mm, and the distance between every two adjacent screw holes is 1500-3000 mm.
The L-shaped open type permanent beam template is characterized in that the L-shaped upper template body and the L-shaped lower template body are prefabricated by high-ductility fiber reinforced cement-based composite material ECC.
Has the advantages that:
the invention has the advantages that: the concrete beam has excellent deformability and crack control capability, has better chlorine ion permeation resistance and water permeation resistance than common concrete beams, has good durability, simple and convenient manufacture, good integrity and convenient assembly, can shorten the construction time, occupies small space and reduces the transportation cost.
1. The invention is used as a template in the beam concrete pouring stage, does not need to be dismantled after pouring and forming, and is used as a protective plate and an outer protective layer of a structure to form a permanent template.
2. The beam template is formed by assembling the L-shaped upper template and the L-shaped lower template into a whole, so that the occupied space of the template is effectively reduced, and the transportation cost and the storage cost can be reduced.
3. The bottom surfaces of the upper template and the lower template of the L-shaped beam are respectively provided with the limiting hole and the limiting groove, so that accurate and rapid assembling and positioning can be realized, the construction time is shortened, and the construction efficiency is improved.
4. According to the invention, the bottom surfaces of the upper L-shaped beam template and the lower L-shaped beam template are respectively provided with the occlusion hole and the occlusion key, and the outer diameter of the occlusion key is smaller than the inner diameter of the occlusion hole, so that when beam body concrete is poured, the fresh concrete, the upper L-shaped template and the lower L-shaped template can be effectively occluded, and the effective cooperative deformation between the permanent template and the beam body is ensured.
5. According to the invention, the bottom surface of the L-shaped lower template is provided with the grout permeation groove, and when beam body concrete is poured, newly-mixed concrete grout can permeate into the grout permeation groove along the occlusion holes and the occlusion keys, so that effective chemical bonding is formed between the bottom surface of the L-shaped upper template and the bottom surface of the L-shaped lower template, and effective cooperative deformation and bonding between the L-shaped beam upper template and the L-shaped lower template are ensured.
6. The side surfaces of the upper template and the lower template of the L-shaped beam are respectively provided with the meshing groove, so that the cooperative deformation capability between the permanent template and the beam body can be further improved.
7. The lower parts of the upper template and the lower template of the L-shaped beam are fixed with the limiting groove through the limiting hole, the upper parts of the upper template and the lower template of the L-shaped beam are fixed through the steel screw, additional reinforcement is not needed on site, the operation is convenient, and the construction efficiency is improved.
8. The high-ductility fiber-reinforced cement-based ECC material has good crack control capability, the chloride ion permeation resistance and the water permeability resistance of the high-ductility fiber-reinforced cement-based ECC material are far superior to those of common concrete, and the durability of a reinforced concrete structure can be remarkably improved by manufacturing the L-shaped permanent template by using the ECC material.
Drawings
Fig. 1 is a schematic structural view of an L-shaped upper die plate body according to the present invention.
Fig. 2 is a schematic structural view of an L-shaped lower template body of the invention.
Fig. 3 is an exploded view of the present invention.
Fig. 4 is an assembly view of the present invention.
Reference numerals: 1. an L-shaped upper template body; 2. an L-shaped lower template body; 3. A limiting hole; 4. An occlusion hole; 5. An occlusion groove; 6. a limiting key; 7. An occlusion key; 8. A slurry seepage tank; 9. A screw hole; 10. A screw; 11. And a nut.
Detailed Description
The present invention will be further illustrated below with reference to specific embodiments, which are to be understood as merely illustrative and not limitative of the scope of the present invention.
As shown in fig. 1-4, the L-shaped open type permanent beam template of this embodiment includes an L-shaped upper template body 1 and an L-shaped lower template body 2, the two ends of the bottom surface of the L-shaped upper template body 1 are provided with limiting holes 3, the bottom surface of the L-shaped lower template body 2 is provided with limiting keys 6 matched with the limiting holes 3, the middle of the bottom surface of the L-shaped upper template body is provided with a set of engaging holes 4, the middle of the bottom surface of the L-shaped lower template body is provided with a set of engaging keys 7 matched with the engaging holes 4, the L-shaped lower template body is provided with a slurry permeating groove 8, and a screw 10 penetrates through screw holes 9 on the side walls of the L-shaped upper template body 1 and the L-shaped lower template body 2 and is fixed by nuts 11.
In the L-shaped open type permanent beam template in this embodiment, the inner side walls of the L-shaped upper template body 1 and the L-shaped lower template body 2 are respectively provided with an occlusion groove 5.
In the L-shaped open permanent beam template of the present embodiment, the depth of the engagement groove 5 is 5mm to 25mm, and the shape is circular, rectangular, polygonal or irregular.
In the L-shaped open type permanent beam template in this embodiment, the shape of the occlusion hole 4 is the same as that of the occlusion key 7, the cross section of the occlusion hole is circular, rectangular, polygonal or irregular, the outer diameter of the occlusion key is smaller than the inner diameter of the occlusion hole by 5mm-25mm, so that a gap is formed after the occlusion hole and the occlusion key are installed in a matched manner, and the height of the occlusion key is the same as the thickness of the bottom surface of the L-shaped upper template body.
In the present embodiment, the L-shaped open type permanent beam template has the same shape of the limiting hole and the limiting key, the cross section of the L-shaped open type permanent beam template is circular, rectangular, polygonal or irregular, the inner diameter of the limiting hole is equal to the outer diameter of the limiting key, and the height of the limiting key is equal to the thickness of the bottom surface of the L-shaped upper template body.
In the L-shaped open type permanent beam template in this embodiment, the bottom thicknesses of the L-shaped upper template body and the L-shaped lower template body are 10mm to 25mm, and the side thicknesses thereof are 20mm to 50 mm.
In the L-shaped open permanent beam template in this embodiment, the slurry permeating groove is located on the bottom surface of the L-shaped lower template body, the depth of the slurry permeating groove is 2mm to 10mm, the edge of the slurry permeating groove is 5mm to 20mm away from the edge of the bottom surface of the L-shaped lower template body, and the slurry permeating groove is rectangular, polygonal or irregular in shape.
In the L-shaped open type permanent beam template in the embodiment, the screw holes are uniformly distributed on the side surfaces of the L-shaped upper template body and the L-shaped lower template body, the aperture is 10mm-25mm, and the distance between every two adjacent screw holes is 1500mm-3000 mm.
In the L-shaped open type permanent beam template in this embodiment, the L-shaped upper template body and the L-shaped lower template body are prefabricated by high-ductility fiber reinforced cement-based composite ECC.
The preparation and use method comprises the following steps:
1. firstly, prefabricating an L-shaped upper template and an L-shaped lower template by using high-ductility fiber reinforced cement-based composite material ECC (error correction code) in a factory according to the cross section shape, size, height and thickness of a beam template required by a design drawing.
2. And hoisting and positioning the L-shaped lower template.
3. And hoisting the L-shaped upper template to ensure that the limiting keys at the two ends of the bottom surface of the L-shaped lower template are completely inserted into the limiting holes at the two ends of the bottom surface of the L-shaped upper template, thereby completing template assembly.
4. And placing a steel reinforcement cage, inserting a steel screw into the screw hole, screwing steel nuts into two ends of the steel screw, and finally fixing the template.
5. Pouring concrete into the high-durability permanent beam combined template, vibrating, compacting, maintaining and forming.
Claims (6)
1. The utility model provides a permanent roof beam template of L type open type which characterized in that: the L-shaped upper template comprises an L-shaped upper template body and an L-shaped lower template body, wherein two ends of the bottom surface of the L-shaped upper template body are provided with limiting holes, the bottom surface of the L-shaped lower template body is provided with a limiting key matched with the limiting holes, the middle of the bottom surface of the L-shaped upper template body is provided with a group of occlusion holes, the middle of the bottom surface of the L-shaped lower template body is provided with a group of occlusion keys matched with the occlusion holes, the L-shaped lower template body is provided with a slurry seepage groove, and a screw penetrates through screw holes in the side walls of the L-shaped upper template body and the L-shaped lower template body and is fixed through nuts;
the inner side walls of the L-shaped upper template body and the L-shaped lower template body are respectively provided with an occlusion groove;
the L-shaped upper template body and the L-shaped lower template body are prefabricated by high-ductility fiber reinforced cement-based composite material ECC;
the shape of the occlusion hole is the same as that of the occlusion key, the section of the occlusion hole is circular, rectangular, polygonal or irregular, the outer diameter of the occlusion key is 5mm-25mm smaller than the inner diameter of the occlusion hole, so that a gap is formed after the occlusion hole and the occlusion key are installed in a matched mode, and the height of the occlusion key is the same as the thickness of the bottom face of the L-shaped upper template body.
2. The L-shaped open permanent beam form of claim 1, wherein: the depth of the occlusion groove is 5mm-25mm, and the occlusion groove is in a shape of a circle, a rectangle, a polygon or an irregular figure.
3. The L-shaped open permanent beam formwork of claim 1 or 2, wherein: the limiting hole is the same as the limiting key in shape, the section of the limiting hole is circular, rectangular, polygonal or irregular, the inner diameter of the limiting hole is equal to the outer diameter of the limiting key, and the height of the limiting key is the same as the thickness of the bottom surface of the L-shaped upper template body.
4. The L-shaped open permanent beam formwork of claim 1 or 2, wherein: the bottom surfaces of the L-shaped upper template body and the L-shaped lower template body are 10mm-25mm in thickness, and the side surfaces of the L-shaped upper template body and the L-shaped lower template body are 20mm-50mm in thickness.
5. The L-shaped open permanent beam formwork of claim 1 or 2, wherein: the slurry permeating groove is positioned on the bottom surface of the L-shaped lower template body, the depth of the slurry permeating groove is 2mm-10mm, the edge of the slurry permeating groove is 5mm-20mm away from the edge of the bottom surface of the L-shaped lower template body, and the slurry permeating groove is rectangular, polygonal or irregular in shape.
6. The L-shaped open permanent beam formwork of claim 1 or 2, wherein: the screw holes are uniformly distributed on the side faces of the L-shaped upper template body and the L-shaped lower template body, the hole diameter is 10-25 mm, and the distance between every two adjacent screw holes is 1500-3000 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910044522.4A CN109811963B (en) | 2019-01-17 | 2019-01-17 | L-shaped open type permanent beam formwork |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910044522.4A CN109811963B (en) | 2019-01-17 | 2019-01-17 | L-shaped open type permanent beam formwork |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109811963A CN109811963A (en) | 2019-05-28 |
| CN109811963B true CN109811963B (en) | 2021-07-13 |
Family
ID=66603450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910044522.4A Active CN109811963B (en) | 2019-01-17 | 2019-01-17 | L-shaped open type permanent beam formwork |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109811963B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110318495B (en) * | 2019-07-10 | 2021-11-12 | 中国矿业大学 | Assembled permanent template superposed FRP rib seawater sea sand recycled concrete beam and manufacturing method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002097789A (en) * | 2000-07-18 | 2002-04-05 | Nippon Fuasutemu Kk | Steel form assembling method using transparent plate therefor |
| CN201649646U (en) * | 2010-04-06 | 2010-11-24 | 北方工业大学 | Support protection structure for cement templates |
| CN102777027A (en) * | 2012-08-17 | 2012-11-14 | 浙江大学 | Interlocking dismountable anti-cracking anti-seepage permanent beam template |
| CN103225398A (en) * | 2013-04-24 | 2013-07-31 | 中国十七冶集团有限公司 | Highly durable permanent column template |
| CN108360811A (en) * | 2018-02-08 | 2018-08-03 | 中国矿业大学 | A kind of TRC pin joints formula can assembled permanent formwork and preparation method thereof |
| CN108661320A (en) * | 2018-08-01 | 2018-10-16 | 广东合迪科技股份有限公司 | Beam form harden structure and beam formwork supporting system |
-
2019
- 2019-01-17 CN CN201910044522.4A patent/CN109811963B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002097789A (en) * | 2000-07-18 | 2002-04-05 | Nippon Fuasutemu Kk | Steel form assembling method using transparent plate therefor |
| CN201649646U (en) * | 2010-04-06 | 2010-11-24 | 北方工业大学 | Support protection structure for cement templates |
| CN102777027A (en) * | 2012-08-17 | 2012-11-14 | 浙江大学 | Interlocking dismountable anti-cracking anti-seepage permanent beam template |
| CN103225398A (en) * | 2013-04-24 | 2013-07-31 | 中国十七冶集团有限公司 | Highly durable permanent column template |
| CN108360811A (en) * | 2018-02-08 | 2018-08-03 | 中国矿业大学 | A kind of TRC pin joints formula can assembled permanent formwork and preparation method thereof |
| CN108661320A (en) * | 2018-08-01 | 2018-10-16 | 广东合迪科技股份有限公司 | Beam form harden structure and beam formwork supporting system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109811963A (en) | 2019-05-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108824818B (en) | Construction method of assembled concrete filled steel tube frame-shear wall structure system | |
| JP2022506916A (en) | Ultra-high performance concrete prefabricated permanent template and its applications | |
| CN109537788B (en) | Concrete superimposed sheet with ultra-high performance | |
| CN112127356A (en) | Assembled grid underground continuous wall of dry-type connection | |
| CN111705650A (en) | UHPC beam slab cast-in-place joint structure with embedded reinforced steel component and construction method thereof | |
| CN103225398A (en) | Highly durable permanent column template | |
| CN107327019A (en) | One kind exempts from template cast-in-situ steel reinforced concrete collar tie beam structure and its construction method | |
| CN109811963B (en) | L-shaped open type permanent beam formwork | |
| CN210857738U (en) | Assembled frame beam with tongue-and-groove connection | |
| CN109779240B (en) | L-shaped closed permanent column template | |
| CN110725441B (en) | Steel concrete casting structure of large wood-wool cement wallboard and building frame structure of fabricated building | |
| CN203373904U (en) | High-durability permanent column template | |
| CN215055609U (en) | Opening reinforcing device for reinforcing masonry structure wall after opening | |
| CN216239020U (en) | Connecting device for steel structure house outer wall | |
| CN219992840U (en) | Composite member, floor slab and building structure | |
| CN219033728U (en) | Novel composite floor slab based on UHPC | |
| CN220166669U (en) | Bridge precast reinforced concrete bridge face structure | |
| CN215716556U (en) | Novel prefabricated UHPC-NC superposed beam | |
| CN215367795U (en) | Large box-shaped concrete member | |
| CN220768613U (en) | Formwork-free constructional column, formwork-free ring beam and wall structure | |
| CN113482237A (en) | Reinforced concrete composite T beam adopting prefabricated U-shaped ECC permanent template | |
| CN211899174U (en) | Truss rib laminated slab with height limiting device and mold table assembly | |
| CN219365020U (en) | Combined assembly type concrete shear wall | |
| CN217461117U (en) | Core pile type prestressed concrete light laminated slab | |
| CN212772980U (en) | Assembled composite wall based on C shaped steel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |