CN106592865B - Prefabricated concrete lintel - Google Patents
Prefabricated concrete lintel Download PDFInfo
- Publication number
- CN106592865B CN106592865B CN201611012345.4A CN201611012345A CN106592865B CN 106592865 B CN106592865 B CN 106592865B CN 201611012345 A CN201611012345 A CN 201611012345A CN 106592865 B CN106592865 B CN 106592865B
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- Prior art keywords
- concrete
- beams
- precast
- framework
- lintel
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- 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.)
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- 239000004567 concrete Substances 0.000 title claims abstract description 95
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 71
- 239000010959 steel Substances 0.000 claims abstract description 71
- 238000010276 construction Methods 0.000 claims abstract description 37
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 27
- 230000002787 reinforcement Effects 0.000 claims abstract description 18
- 239000011178 precast concrete Substances 0.000 abstract description 11
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000002950 deficient Effects 0.000 abstract description 2
- 230000001737 promoting effect Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 12
- 238000013461 design Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 239000002689 soil Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 238000009416 shuttering Methods 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/20—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of concrete or other stone-like material, e.g. with reinforcements or tensioning members
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
- E04C3/293—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures the materials being steel and concrete
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/161—Protective caps for the ends of reinforcing bars
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention particularly discloses prefabricated concrete lintels, including precast reinforced concrete beam ontology, the precast reinforced concrete beam ontology includes beams of concrete and framework of steel reinforcement, one section of the framework of steel reinforcement be set to beams of concrete it is internal, another section along beams of concrete length direction stretch out beams of concrete outside, beams of concrete is combined with the framework of steel reinforcement being set to inside beams of concrete to be formed in span sky precast construction, stretch out beams of concrete outside framework of steel reinforcement is then formed reserve dowel.The lintel is not only provided with the advantages of traditional precast concrete lintel, while overcoming the defective mounting of conventional steel bar concrete lintel, is highly suitable for promoting in building trade.
Description
Technical field
The present invention relates to technical field of buildings, and in particular to prefabricated concrete lintel.
Background technique
In existing filling wall construction, concrete lintel is designed at door-window opening.According to existing form of construction work, coagulation
Native lintel is divided into cast-in-place concrete lintel and precast concrete lintel.Cast-in-place concrete lintel, since its working procedure is complicated, matter
Measure the dispersion of unstable, at high cost, construction part, wet construction, unfavorable civilized construction on site, and precast concrete lintel then can be with
It solves the above problems, for this purpose, mostly using precast concrete lintel to substitute cast-in-place concrete in existing filling wall construction at present
Beam.
But existing precast concrete lintel is at the adjacent contour door opening in 90 °, since one end can cross influence
(reserved door-window opening and the cooperation of beam port joint often mismatch, therefore then fill out again frequently with precast concrete lintel is shortened
Fill) so that the shelving length of precast concrete lintel is not easy to reach design and code requirement.Moreover, existing precast concrete
Lintel cannot link into an integrated entity when combining with constructional column, collar tie beam, therefore, according to existing construction technology and design requirement, on
Cast-in-place concrete lintel must be used by stating these positions.
It would therefore be highly desirable to invent a kind of new precast concrete lintel, cast-in-place concrete lintel complex procedures, matter can be overcome
The disadvantages of unstable and at high cost is measured, so that its connector is matched with door-window opening, not will receive cross influence, while can also be with
Constructional column and collar tie beam etc. link into an integrated entity.
Summary of the invention
The purpose of the present invention in view of the deficiencies of the prior art, provides a kind of prefabricated concrete lintel, connector energy
It not will receive cross influence when matching with door-window opening, while can also link into an integrated entity with constructional column and collar tie beam etc..
In order to achieve the above objectives, base case of the invention are as follows: prefabricated concrete lintel, including it is precast reinforced mixed
Solidifying soil beam ontology, the precast reinforced concrete beam ontology include beams of concrete and framework of steel reinforcement, and one section of the framework of steel reinforcement
Be set to beams of concrete it is internal, another section along beams of concrete length direction stretch out beams of concrete outside, beams of concrete and setting
Framework of steel reinforcement inside beams of concrete combines to be formed in span sky precast construction, stretch out beams of concrete outside framework of steel reinforcement then
Form reserved dowel.
The working principle and advantage of this programme are: prefabricated concrete lintel, first is that pre- in factory or scene
Reinforced concrete lintel ontology processed makes it overcome cast-in-place concrete lintel complex procedures, unstable quality and at high cost etc. lack
On the other hand point shortens the overall length of precast reinforced concrete beam, and reserve dowel in the end indwelling of beams of concrete, by pre-
It stays dowel and constructional column and collar tie beam etc. that can be connected, improves the globality of precast concrete lintel, simultaneously because reserved
Dowel is easily inserted the reserved opening of door-window opening, and the end compared with monolithic concrete lintel is integrally assembled, and not will receive friendship
Fork influences, therefore, the advantages of prefabricated concrete lintel in this programme is not only provided with traditional precast concrete lintel,
The defective mounting for overcoming conventional steel bar concrete lintel simultaneously is highly suitable for promoting in building trade.
Further, the length of middle span sky precast construction is 200mm wider than the width of door-window opening.Notebook data is by site operation
Installation personnel is corrected by many experiments and long-term experience accumulation obtains, and is applicable in precast reinforced concrete beam sheet
The both ends of body respectively reserve dowel when the case where, both met relevant design construction requirement, while under this numerical value, it is precast reinforced
The installation of concrete lintel is convenient, and globality is also preferable after installation.
Further, the length of middle span sky precast construction is 100mm wider than the width of door-window opening.Notebook data is by site operation
Installation personnel is corrected by many experiments and long-term experience accumulation obtains, and is applicable in precast reinforced concrete beam sheet
Body one end reserve dowel when the case where, both met relevant design construction requirement, while under this numerical value, prefabricated reinforced concrete
The installation of lintel is convenient, and globality is also preferable after installation.
Further, it is identified in middle span sky precast construction.The related datas such as the length of centering span sky precast construction
It is identified, mainly for facilitating installation personnel's centering span sky precast construction to assemble, enhances convenience for construction.
Further, the end point for reserving dowel is threaded with metalwork.Metalwork can connect for stainless steel tube, stainless steel
The metal embedded part of the alternative spiral such as fitting and stainless steel connector sleeve after being threadedly coupled with reserved dowel, leads to
It crosses and screws adjustable fixed installation position of the metalwork relative to spiral of metalwork, so that pre-buried dowel can basis
Installation needs " elongation " or " shortening ", assembles conducive to construction personnel to prefabricated reinforced concrete lintel, greatly
Enhance convenience for construction.
Further, the opposite two sides of beams of concrete end are respectively equipped with steel plate, and two blocks of steel plates are respectively embedded into and are fitted in
On beams of concrete and self-contained template, the long side of one of steel plate flushes with the tip position of hollow steel pipe, another block of steel plate
Long side is shorter than the tip position of hollow steel pipe.The purpose that steel plate is arranged is one side steel plate self-contained template, pours coagulation after reduction
Soil shuttering supporting and set up, another aspect steel plate can also promote the both ends bonding strength of beams of concrete, improve beams of concrete
Globality, and it is one piece of steel plate long one piece short, it is to belong to necessary execution conditions to leave construction notch to rear pouring concrete.
Further, fixedly connected part is equipped between two blocks of steel plates, fixedly connected part passes across beams of concrete, fixedly connected part
One end connect with one of Interal fixation, the other end is connect with another piece of Interal fixation.Fixedly connected part can be screw-thread steel
Muscle, fashioned iron etc., main purpose is first is that steel plate but ensures steel plate with to lead to beams of concrete entirety deformation in order to prevent
Installation site is accurate, improves the integral strength of beams of concrete.
Further, the head bottom part of beams of concrete pours a lug boss in advance, the end top of beams of concrete is reserved with
One caveli body.The purpose of above-mentioned setting is the surface area of the end by lug boss and caveli body change beams of concrete,
Make its break end area increase, and then increase after pouring concrete and the end of prefabricated reinforced concrete lintel contact bond area,
The globality of concrete lintel is improved, meanwhile, lug boss is convenient for rear pouring concrete in the head bottom part of precast reinforced concrete beam
Pour, be conducive to filling and the later period vibration after pouring concrete.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the prefabricated concrete lintel embodiment of the present invention.
Specific embodiment
Below by specific embodiment, the present invention is described in further detail:
Appended drawing reference in Figure of description includes: steel plate 1, hollow steel pipe 2, reserved dowel 3, lug boss 41, recess
Cavity 42, fixedly connected part 5, beams of concrete 6.
Embodiment prefabricated concrete lintel, including precast reinforced concrete beam ontology as shown in Figure 1: substantially, in advance
Reinforced beam ontology processed includes beams of concrete 6 and framework of steel reinforcement, one section of framework of steel reinforcement is set to inside beams of concrete 6,
Another section of length direction along beams of concrete 6 stretches out outside beams of concrete 6.It beams of concrete 6 and is set to inside beams of concrete 6
Framework of steel reinforcement combines to be formed in span sky precast construction, and the framework of steel reinforcement stretched out outside beams of concrete 6 then belongs to reserved connection
Muscle 3: when need the both ends of precast reinforced concrete beam ontology respectively reserve dowel 3 when, the length of middle span sky precast construction
Degree is that the width of door-window opening adds 200mm；When dowel 3 is reserved in the one end for being all in precast reinforced concrete beam ontology, in
The length of span sky precast construction is that the width of door-window opening adds the preceding paragraph anchorage length (to be required to when practice of construction according to specification
Calculate), add 100mm.It is taken at this point, middle span sky precast construction can be placed horizontally on door-window opening without row again
If the support of precast reinforced concrete beam ontology.
When construction, the dowel of the one or both ends of precast reinforced concrete beam ontology can be reserved according to field condition,
Reserved dowel can need to be fixedly connected with adjacent members (such as steel reinforcement cage of constructional column, collar tie beam) according to construction, make
Precast reinforced concrete beam ontology connect with adjacent members and it is cast-in-place become an entirety, with enhancing structure stability.In order to apply
Work is convenient, can be identified in the middle span sky precast construction of precast reinforced concrete beam ontology, such as scribing line, nailing and does
Color mark etc., to reduce the technical requirements of installation and to guarantee that installation site is accurate, it is ensured that shelving length.It is precast reinforced
Beams of concrete ontology can at the scene or professional concentrated processing is prefabricated, requires to shorten beams of concrete 6 according to design and construction when prefabricated
Length reserved dowel 3 simultaneously, after being installed precast reinforced concrete beam ontology, pour the concrete of shortening afterwards again
Beam 6 is to reach the length that design and construction require.
As shown in Figure 1, the upset post-processing in end point of reserved dowel 3 forms external screw thread, in the broken end of reserved dowel 3
Upper connection hollow steel pipe 2, processing forms internal screw thread on 2 inner wall of hollow steel pipe, and hollow steel pipe 2 is threaded in reserved dowel
On 3.Hollow steel pipe 2 reserves dowel 3 instead of one end, meanwhile, hollow steel pipe 2 is screwed by positive and negative, thus it is possible to vary hollow steel
The relative position of pipe 2 and reserved dowel 3.When installing precast reinforced concrete beam ontology, forward direction, which screws hollow steel pipe 2, makes steel
The entire length of tendons skeleton shortens, and then limits the door of length convenient for the convenience of precast reinforced concrete beam 6 is installed on both ends
At window hole, after precast reinforced concrete beam 6 is installed in place, hollow steel pipe 2 is reversely screwed, hollow steel pipe 2 and framework of steel reinforcement are made
Entire length meet design and construction require.Certainly, the hollow steel pipe 2 that the present embodiment uses, but it is not limited to hollow steel pipe 2,
As long as being threadedly coupled using the metalwork met the requirements with reserved dowel 3 can be achieved above embodiment.
In the embodiment of this optimization, two blocks of steel plates 1 are further respectively had in the opposite two sides of 6 end of beams of concrete, two pieces
Steel plate 1 is respectively embedded into and is fitted on beams of concrete 6 and self-contained template, the long side of one of steel plate 1 and the end of hollow steel pipe 2
Head position flushes, the long side of another block of steel plate 1 is shorter than the tip position of hollow steel pipe 2, is equipped with and is fixedly connected between two blocks of steel plates 1
Part 5, fixedly connected part 5 pass across beams of concrete 6, and one end of fixedly connected part 5 is fixedly connected with one of steel plate 1, is another
End is fixedly connected with another block of steel plate 1, and fixedly connected part 5 can be screw rod or tension rib etc., is no longer described in detail again.It is fixedly connected
5, two blocks of steel plates 1 of part and beams of concrete 6 can shift to an earlier date it is prefabricated become an entirety, two blocks of steel plates 1 on the one hand can be to beams of concrete 6
Two sides carry out structural strengthening, share the stress of middle span sky precast construction, on the other hand two blocks of steel plates 1 can be used as rear pouring concrete
Template, in addition set up shuttering supporting when pouring precast reinforced concrete beam 6 after avoiding, facilitate construction, and one of steel plate 1
Purpose be for the entrance of pouring concrete after reserved, rear pouring concrete can be shorter than the steel plate 1 of the end of hollow steel pipe 2 by long side
Side enter pour.
In order to further increase the globality of rear pouring concrete Yu precast reinforced concrete beam 6, in the present embodiment, concrete
The head bottom part of beam 6 pours a lug boss 41 in advance, the end top of beams of concrete 6 is reserved with a caveli body 42.Mixed
The lug boss 41 and caveli body 42 of the end setting of solidifying soil beam 6, can increase the contact surface of beams of concrete 6 Yu rear pouring concrete
Product, so improve after pouring concrete and 6 end of beams of concrete adhesive property.Meanwhile lug boss 41 is in prefabricated reinforced concrete
The head bottom part of beam 6 pours convenient for rear pouring concrete, pouring concrete after vibrating conducive to filling and later period, and caveli body 42
Setting purpose lies also in this.
What has been described above is only an embodiment of the present invention, and the common sense such as well known specific structure and characteristic are not made herein in scheme
Excessive description.It, without departing from the structure of the invention, can be with it should be pointed out that for those skilled in the art
Several modifications and improvements are made, these also should be considered as protection scope of the present invention, these all will not influence what the present invention was implemented
Effect and patent practicability.The scope of protection required by this application should be based on the content of the claims, in specification
The records such as specific embodiment can be used for explaining the content of claim.
Claims (4)
1. prefabricated concrete lintel, including precast reinforced concrete beam ontology, the precast reinforced concrete beam ontology
Including beams of concrete and framework of steel reinforcement, which is characterized in that one section of the framework of steel reinforcement is set to inside beams of concrete, Ling Yiduan
Length direction along beams of concrete stretches out outside beams of concrete, beams of concrete and the framework of steel reinforcement group being set to inside beams of concrete
Span sky precast construction in being formed is closed, the framework of steel reinforcement stretched out outside beams of concrete forms reserved dowel, and the middle span is empty
The length of precast construction is 200mm wider than the width of door-window opening, and the end point of the reserved dowel is threaded with hollow steel
Pipe, the opposite two sides of the beams of concrete end are respectively equipped with steel plate, and two blocks of steel plates are respectively embedded into and are fitted in beams of concrete
Upper and self-contained template, the long side of one of steel plate is flushed with the tip position of hollow steel pipe, the long side of another block of steel plate is shorter than
The tip position of hollow steel pipe is equipped with fixedly connected part between two blocks of steel plates, and fixedly connected part passes across beams of concrete, fixed to connect
One end of fitting is connect with one of Interal fixation, the other end is connect with another piece of Interal fixation.
2. prefabricated concrete lintel according to claim 1, which is characterized in that the middle span sky precast construction
Length it is 100mm wider than the width of door-window opening.
3. prefabricated concrete lintel according to any one of claim 1 to 2, which is characterized in that the centre
Mark is equipped with across empty precast construction.
4. prefabricated concrete lintel according to claim 1, which is characterized in that the head bottom part of beams of concrete is poured
Build a lug boss, the end top of beams of concrete is reserved with a caveli body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611012345.4A CN106592865B (en) | 2016-11-17 | 2016-11-17 | Prefabricated concrete lintel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611012345.4A CN106592865B (en) | 2016-11-17 | 2016-11-17 | Prefabricated concrete lintel |
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| Publication Number | Publication Date |
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| CN106592865A CN106592865A (en) | 2017-04-26 |
| CN106592865B true CN106592865B (en) | 2019-04-09 |
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| CN201611012345.4A Active CN106592865B (en) | 2016-11-17 | 2016-11-17 | Prefabricated concrete lintel |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109930749A (en) * | 2017-12-19 | 2019-06-25 | 南宁学院 | A kind of skeleton structure of beam |
| CN109339077A (en) * | 2018-11-29 | 2019-02-15 | 中国冶集团有限公司 | Assembling frame beam side slope protection construction method |
| CN113738020A (en) * | 2021-10-20 | 2021-12-03 | 四川迈铁龙科技有限公司 | Prefabricated ring beam |
| CN119392862B (en) * | 2025-01-06 | 2025-03-18 | 福建建工装配式建筑研究院有限公司 | A support-free prefabricated structure based on superimposed parent-child beams and its installation method |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2946359B2 (en) * | 1991-05-28 | 1999-09-06 | 株式会社 フジタ | Semi-precast concrete composite girder |
| JP3526638B2 (en) * | 1994-11-07 | 2004-05-17 | 東京鐵鋼株式会社 | Method for manufacturing precast structure and screwing jig used for the method |
| CN201056773Y (en) * | 2007-05-30 | 2008-05-07 | 北京工业大学 | Door and window opening of bidirectional single-row reinforcing bar shearing force wall |
| CN103147525B (en) * | 2010-09-08 | 2015-11-25 | 应家荣 | Earthenware brick stone wall assembly and earthenware brick stone wall construction method |
| CN201785940U (en) * | 2010-09-28 | 2011-04-06 | 杨峰 | Reinforced concrete prefabricated beam |
| CN102094525B (en) * | 2011-01-07 | 2012-05-23 | 吴方伯 | Method for constructing reinforced concrete lintel |
| CN102852281B (en) * | 2012-08-16 | 2015-12-30 | 杨众 | A kind of have the prestressing force precast main beam of shelving breach |
| CN203174880U (en) * | 2013-02-02 | 2013-09-04 | 株洲博尔曼科技发展有限公司 | Novel building block lintel |
| CN204282647U (en) * | 2014-12-04 | 2015-04-22 | 黄石市神州建材有限公司 | A kind of steam-pressing aero-concrete lintel |
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2016
- 2016-11-17 CN CN201611012345.4A patent/CN106592865B/en active Active
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