CN106592865A - Fabricated type precast concrete lintel - Google Patents
Fabricated type precast concrete lintel Download PDFInfo
- Publication number
- CN106592865A CN106592865A CN201611012345.4A CN201611012345A CN106592865A CN 106592865 A CN106592865 A CN 106592865A CN 201611012345 A CN201611012345 A CN 201611012345A CN 106592865 A CN106592865 A CN 106592865A
- Authority
- CN
- China
- Prior art keywords
- concrete
- beams
- precast
- lintel
- steel
- 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.)
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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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Joining Of Building Structures In Genera (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses a fabricated type precast concrete lintel which comprises a precast reinforced concrete lintel body. The precast reinforced concrete lintel body comprises a concrete lintel unit and a reinforcement cage. One section of the reinforcement cage is arranged in the concrete lintel unit, and the other section of the reinforcement cage extends out of the concrete lintel unit in the length direction of the concrete lintel unit; and the concrete lintel unit and the section, located in the concrete lintel unit, of the reinforcement cage are combined to form a middle-span precast structure, and the section, extending out of the concrete lintel unit, of the reinforcement cage forms reserved connecting ribs. The lintel has the advantages of traditional precast concrete lintels, overcomes the installation defects of traditional reinforced concrete lintels, and is quite suitable for being popularized in the building industry.
Description
Technical field
The present invention relates to technical field of buildings, and in particular to prefabricated concrete lintel.
Background technology
In existing filling wall construction, concrete lintel is designed with 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, because its working procedure is complicated, matter
Unstable, high cost, construction part dispersion, wet trade are measured, is unfavorable for live civilized construction, and precast concrete lintel then can be with
Solve the above problems, for this purpose, substituting cast-in-place concrete using precast concrete lintel more in existing filling wall construction at present
Beam.
But, existing precast concrete lintel at 90 ° of adjacent contour door opening, because its one end can cross influence
(Reserved door-window opening coordinates Jing often to mismatch with beam port joint, therefore then fills out again frequently with precast concrete lintel is shortened
Fill)So that the shelving length of precast concrete lintel is difficult to reach design and code requirement.And, existing precast concrete
Lintel is when in combination with constructional column, collar tie beam, it is impossible to link into an integrated entity, therefore, according to existing construction technology and design requirement, on
Stating these positions must adopt cast-in-place concrete lintel.
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 shortcomings of measuring unstable and high cost so as to which joint can match with door-window opening, will not be by cross influence, while can also be with
Constructional column and collar tie beam etc. link into an integrated entity.
The content of the invention
The purpose of the present invention is directed to the deficiencies in the prior art, there is provided a kind of prefabricated concrete lintel, its joint energy
Cross influence will not be subject to when matching with door-window opening, while can also link into an integrated entity with constructional column and collar tie beam etc..
To reach above-mentioned purpose, the base case of the present invention is:Prefabricated concrete lintel, including it is precast reinforced mixed
Solidifying soil beam body, the precast reinforced concrete beam body includes beams of concrete and framework of steel reinforcement, one section of the framework of steel reinforcement
Be arranged at that beams of concrete is internal, another section of length direction along beams of concrete is stretched out outside beams of concrete, beams of concrete with arrange
Framework of steel reinforcement inside beams of concrete combines in being formed span sky precast construction, stretches out framework of steel reinforcement outside beams of concrete then
Form reserved dowel.
The operation principle and advantage of this programme be:Prefabricated concrete lintel, one is pre- in factory or scene
Reinforced concrete lintel body processed so as to overcome cast-in-place concrete lintel complex procedures, quality unstable and cost is high etc. lacks
Point, on the other hand shortens the overall length of precast reinforced concrete beam, and dowel is reserved in the termination indwelling in beams of concrete, by pre-
Stay dowel and constructional column and collar tie beam etc. to be connected, improve the globality of precast concrete lintel, simultaneously because reserved
Dowel is easily inserted the reserved opening of door-window opening, matches somebody with somebody than the termination integral installation of monolithic concrete lintel, will not be handed over
Fork affects, therefore, the prefabricated concrete lintel in this programme is not only provided with the advantage of traditional precast concrete lintel,
The defective mounting of conventional steel bar concrete lintel is overcome simultaneously, is highly suitable for being promoted in building trade.
Further, the length 200mm wider than the width of door-window opening of middle span sky precast construction.Notebook data is by site operation
Installation personnel is obtained by many experiments correction and long-term experience accumulation, it is adaptable to needed in precast reinforced concrete beam sheet
Situation during dowel is reserved respectively at the two ends of body, has both met relevant design construction requirement, while under this numerical value, it is precast reinforced
The installation facility of concrete lintel, globality is also preferable after installation.
Further, the length 100mm wider than the width of door-window opening of middle span sky precast construction.Notebook data is by site operation
Installation personnel is obtained by many experiments correction and long-term experience accumulation, it is adaptable to needed in precast reinforced concrete beam sheet
Situation during dowel is reserved in body one end, has both met relevant design construction requirement, while under this numerical value, prefabricated reinforced concrete
The installation facility of lintel, 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 be assembled, strengthens convenience for construction.
Further, the end for reserving dowel is threaded with metalwork.Metalwork can connect for stainless steel tube, rustless steel
The metal embedded part of the alternative spiral such as fitting and rustless steel adapter sleeve, after it is threadedly coupled with reserved dowel, leads to
The fixed installation position for screwing metalwork scalable metalwork relative to spiral is crossed, so that pre-buried dowel can basis
Installation needs " elongation " or " shortening ", prefabricated reinforced concrete lintel is assembled beneficial to workmen, greatly
Enhance convenience for construction.
Further, the relative of beams of concrete termination is respectively provided on two sides with steel plate, and two blocks of steel plates are respectively embedded into and are fitted in
On beams of concrete and from into 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 for arranging steel plate is one side steel plate from into template, and coagulation is poured after reduction
The shuttering supporting of soil and set up, another aspect steel plate can also lift the two ends bonding strength of beams of concrete, improve beams of concrete
Globality, and one piece short of one block length of steel plate, are, in order to leave construction breach to rear pouring concrete, to belong to necessary execution conditions.
Further, fixedly connected part is provided between two blocks of steel plates, fixedly connected part passes across beams of concrete, fixedly connected part
One end be connected with one of Interal fixation, the other end is connected with another piece of Interal fixation.Fixedly connected part can be screw-thread steel
Muscle, shaped steel etc., its main purpose one is to cause beams of concrete entirety deformation to prevent steel plate from thinking, but ensure that steel plate
Installation site accurately, improves the bulk strength of beams of concrete.
Further, the head bottom part of beams of concrete pours in advance a lobe, the termination top of beams of concrete is reserved with
One caveli body.The purpose of above-mentioned setting is the surface area of the termination for changing beams of concrete by lobe and caveli body,
Its broken end area increase, and then the pouring concrete bond area of the contact with the termination of prefabricated reinforced concrete lintel after increasing are made,
The globality of concrete lintel is improved, meanwhile, lobe pouring concrete after the head bottom part of precast reinforced concrete beam is easy to
Pour, beneficial to filling and the later stage vibration after pouring concrete.
Description of the drawings
Fig. 1 is the structural representation of prefabricated concrete lintel embodiment of the invention.
Specific embodiment
Below by specific embodiment, the present invention is further detailed explanation:
Reference in Figure of description includes:Steel plate 1, hollow steel pipe 2, reserved dowel 3, lobe 41, caveli body
42nd, fixedly connected part 5, beams of concrete 6.
Embodiment is substantially as shown in Figure 1:Prefabricated concrete lintel, including precast reinforced concrete beam body, in advance
Reinforced beam body processed includes beams of concrete 6 and framework of steel reinforcement, one section of framework of steel reinforcement be arranged inside beams of concrete 6,
Another section of length direction along beams of concrete 6 is stretched out outside beams of concrete 6.Beams of concrete 6 be arranged inside beams of concrete 6
Framework of steel reinforcement combines span sky precast construction in being formed, and stretches out the framework of steel reinforcement outside beams of concrete 6 and then belong to reserved connection
Muscle 3:When needing to reserve dowel 3 respectively at the two ends of precast reinforced concrete beam body, the length of middle span sky precast construction
Spend for door-window opening width add 200mm;When the reserved dowel 3 in the one end for being all in precast reinforced concrete beam body, in
The length of span sky precast construction adds the preceding paragraph anchorage length for the width of door-window opening(It is required to according to specification during practice of construction
Calculate), along with 100mm.Now, middle span sky precast construction can be placed horizontally on door-window opening and be taken without row again
If the support of precast reinforced concrete beam body.
During construction, one end of precast reinforced concrete beam body or the dowel at two ends can be reserved according to field condition,
Reserved dowel can need and adjacent members according to construction(The such as steel reinforcement cage of constructional column, collar tie beam)It is fixedly connected, makes
Precast reinforced concrete beam body be connected with adjacent members and it is cast-in-place become an entirety, with enhancing structure stability.In order to apply
Work is facilitated, and can be identified in the middle span of precast reinforced concrete beam body sky precast construction, such as line, nailing and is done
Color mark etc., to reduce the technical requirements of installation and to ensure that installation site is accurate, it is ensured that shelving length.It is precast reinforced
Beams of concrete body can be required according to design and construction to shorten beams of concrete 6 when prefabricated at the scene or professional concentrated processing is prefabricated
Length simultaneously reserved dowel 3, after installation precast reinforced concrete beam body, again pour the concrete of shortening afterwards
Beam 6 with reach design and construction require length.
As shown in figure 1, processing forms external screw thread after the end of reserved dowel 3 is upset, in the broken end of reserved dowel 3
Upper connection hollow steel pipe 2, processing on the inwall of hollow steel pipe 2 forms female thread, hollow steel pipe 2 is threaded in into reserved dowel
On 3.Hollow steel pipe 2 instead of the reserved dowel 3 in one end, meanwhile, screw hollow steel pipe 2 by positive and negative, thus it is possible to vary hollow steel
The relative position of pipe 2 and reserved dowel 3.When precast reinforced concrete beam body is installed, forward direction screws hollow steel pipe 2 and makes steel
The entire length of muscles and bones frame shortens, and then is easy to for the facility of precast reinforced concrete beam 6 to be installed on the door that two ends limit length
At window hole, precast reinforced concrete beam 6 install it is in place after, reversely screw hollow steel pipe 2, make hollow steel pipe 2 and framework of steel reinforcement
Entire length meet design and construction require.Certainly, the hollow steel pipe 2 that the present embodiment is adopted, but hollow steel pipe 2 is not limited to,
As long as being threadedly coupled with reserved dowel 3 using the metalwork for meeting requirement and be capable of achieving above-mentioned embodiment.
In the embodiment of this optimization, in the relative both sides of the termination of beams of concrete 6 two blocks of steel plates 1 are further respectively had, two pieces
Steel plate 1 is respectively embedded into and is fitted on beams of concrete 6 and from into 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 provided between two blocks of steel plates 1 and is fixedly connected
Part 5, fixedly connected part 5 passes across beams of concrete 6, and one end of fixedly connected part 5 is fixedly connected with one of steel plate 1, 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., no longer describe 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 pieces of one side of steel plate 1 can be to beams of concrete 6
Both sides carry out structural strengthening, share the stress of middle span sky precast construction, and on the other hand two blocks of steel plates 1 can be used as rear pouring concrete
Template, it is to avoid after set up shuttering supporting when pouring precast reinforced concrete beam 6 in addition, convenient construction, and one of steel plate 1
Purpose be that rear pouring concrete can be shorter than the steel plate 1 of the termination of hollow steel pipe 2 by long side for the entrance of pouring concrete after reserving
Side enter pour.
For pouring concrete after further improving and the globality of precast reinforced concrete beam 6, in the present embodiment, concrete
The head bottom part of beam 6 pours in advance a lobe 41, the termination top of beams of concrete 6 is reserved with a caveli body 42.Mixed
Lobe 41 and caveli body 42 that the termination of solidifying soil beam 6 is arranged, can increase the contact surface of beams of concrete 6 and rear pouring concrete
The adhesive property of pouring concrete and the termination of beams of concrete 6 after product, and then raising.Meanwhile, lobe 41 is in prefabricated reinforced concrete
The head bottom part of beam 6 is easy to pouring for rear pouring concrete, pouring concrete after vibrating beneficial to filling and later stage, and caveli body 42
Purpose is set and lies also in this.
Above-described is only embodiments of the invention, and the general knowledge here such as known concrete structure and characteristic is not made in scheme
Excessive description.It should be pointed out that for a person skilled in the art, on the premise of without departing from present configuration, can be with
Some deformations and improvement are made, these should also be considered as protection scope of the present invention, these are implemented all without the impact present invention
Effect and practical applicability.This application claims protection domain should be defined by the content of its claim, in description
Specific embodiment etc. records the content that can be used for explaining claim.
Claims (8)
1. prefabricated concrete lintel, including precast reinforced concrete beam body, the precast reinforced concrete beam body
Including beams of concrete and framework of steel reinforcement, it is characterised in that a section of the framework of steel reinforcement is arranged inside beams of concrete, Ling Yiduan
Stretch out outside beams of concrete along the length direction of beams of concrete, beams of concrete and the framework of steel reinforcement group being arranged inside beams of concrete
Span sky precast construction in being formed is closed, the framework of steel reinforcement outside beams of concrete is stretched out and is formed reserved dowel.
2. prefabricated concrete lintel according to claim 1, it is characterised in that the middle span sky precast construction
Length 200mm wider than the width of door-window opening.
3. prefabricated concrete lintel according to claim 1, it is characterised in that the middle span sky precast construction
Length 100mm wider than the width of door-window opening.
4. prefabricated concrete lintel according to any one of claim 1 to 3, it is characterised in that the centre
Mark is provided with across empty precast construction.
5. prefabricated concrete lintel according to any one of claim 1 to 3, it is characterised in that described reserved
The end of dowel is threaded with metalwork.
6. prefabricated concrete lintel according to claim 5, it is characterised in that the phase of the beams of concrete termination
To be respectively provided on two sides with steel plate, two blocks of steel plates are respectively embedded into and are fitted on beams of concrete and from into template, one of steel
The long tip position while with hollow steel pipe of plate is flushed, another block of steel plate it is long while be shorter than the tip position of hollow steel pipe.
7. prefabricated concrete lintel according to claim 6, it is characterised in that be provided with fixation between two blocks of steel plates
Connector, fixedly connected part passes across beams of concrete, and one end of fixedly connected part is connected with one of Interal fixation, the other end
It is connected with another piece of Interal fixation.
8. prefabricated concrete lintel according to claim 6, it is characterised in that the head bottom part of beams of concrete is poured
Build a lobe, the termination top of beams of concrete is reserved with a caveli body.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201611012345.4A CN106592865B (en) | 2016-11-17 | 2016-11-17 | Prefabricated concrete lintel |
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CN201611012345.4A CN106592865B (en) | 2016-11-17 | 2016-11-17 | Prefabricated concrete lintel |
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CN106592865A true CN106592865A (en) | 2017-04-26 |
CN106592865B 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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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
CN109930749A (en) * | 2017-12-19 | 2019-06-25 | 南宁学院 | A kind of skeleton structure of beam |
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JPH08132430A (en) * | 1994-11-07 | 1996-05-28 | Tokyo Tekko Co Ltd | Production of precast structure and screwing jig used therein |
JP2946359B2 (en) * | 1991-05-28 | 1999-09-06 | 株式会社 フジタ | Semi-precast concrete composite girder |
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 |
CN201785940U (en) * | 2010-09-28 | 2011-04-06 | 杨峰 | Reinforced concrete prefabricated beam |
CN102094525A (en) * | 2011-01-07 | 2011-06-15 | 吴方伯 | Method for constructing reinforced concrete lintel |
CN102852281A (en) * | 2012-08-16 | 2013-01-02 | 杨众 | Prestressed precast main beam with laying gaps |
CN103147525A (en) * | 2010-09-08 | 2013-06-12 | 应家荣 | Earthenware brick stone wall |
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 |
-
2016
- 2016-11-17 CN CN201611012345.4A patent/CN106592865B/en active Active
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2946359B2 (en) * | 1991-05-28 | 1999-09-06 | 株式会社 フジタ | Semi-precast concrete composite girder |
JPH08132430A (en) * | 1994-11-07 | 1996-05-28 | Tokyo Tekko Co Ltd | Production of precast structure and screwing jig used therein |
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 |
CN103147525A (en) * | 2010-09-08 | 2013-06-12 | 应家荣 | Earthenware brick stone wall |
CN201785940U (en) * | 2010-09-28 | 2011-04-06 | 杨峰 | Reinforced concrete prefabricated beam |
CN102094525A (en) * | 2011-01-07 | 2011-06-15 | 吴方伯 | Method for constructing reinforced concrete lintel |
CN102852281A (en) * | 2012-08-16 | 2013-01-02 | 杨众 | Prestressed precast main beam with laying gaps |
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 |
Cited By (2)
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 |
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CN106592865B (en) | 2019-04-09 |
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