CN206189743U - One shot forming's multispan is beam manufacturing in advance - Google Patents
One shot forming's multispan is beam manufacturing in advance Download PDFInfo
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- CN206189743U CN206189743U CN201621144108.9U CN201621144108U CN206189743U CN 206189743 U CN206189743 U CN 206189743U CN 201621144108 U CN201621144108 U CN 201621144108U CN 206189743 U CN206189743 U CN 206189743U
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- multispan
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- stirrup
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Abstract
The utility model belongs to prefabricated assembly field specifically is one shot forming's multispan is beam manufacturing in advance, include beam manufacturing frame construction and concrete body in advance, in advance beam manufacturing frame construction include along multispan in advance beam manufacturing length direction parallel distribution's breast indulge muscle, a plurality of along multispan waist muscle and a plurality of along multispan beam manufacturing length direction parallel distribution's back reinforcing bar in advance in beam manufacturing length direction parallel distribution's the roof beam in advance to back reinforcing bar, the interior waist muscle of roof beam and the vertical muscle of breast are from the top down distribution in proper order, concrete body has a plurality of, and the muscle is indulged and in advance on the beam manufacturing stirrup to the cladding of a plurality of concrete body pouring type waist muscle and breast in back reinforcing bar, roof beam to leave the installation clearance between the neighboring concrete body. The utility model has the advantages of reliable, the difficult fracture of connection separates, anti -seismic performance is good, and at the practical application in -process, can shorten the engineering time greatly, the operation of being convenient for can be applied to in all prefabricated fabricated frame systems.
Description
Technical field
The utility model belongs to prefabrication and assembly construction field, specially one-time formed multispan precast beam.
Background technology
At present, there are two kinds of forms of construction work in reinforced beam：Traditional cast-in-place and prefabrication and assembly construction.As country advocates energetically
Building industrialization, this form of construction work of prefabrication and assembly construction is increasingly taken seriously.There is the construction period in traditional cast-in-place construction mode
It is long, the shortcomings of construction quality is poor, environmental is high.And at present in prefabrication, precast beam generally uses single span
Single prefabricated, so every beam is continuously being required for setting keyway and additional bar to be connected with post and adjacent beams at bearing, applies
Work is more complicated, and the prefabricated of particularly independent outrigger more can produce potential safety hazard because of reasons such as the node construction qualities of beam column.And
And can greatly increase the engineering time for pillar web frame.Therefore necessary design is a kind of overcomes disadvantages mentioned above and more efficient
Precast beam construction method.
Though there is the design for bean column node in the prior art, such as a kind of Chinese patent CNCN105804241A " pre-manufactured steels
Reinforced concrete bean column node ", it proposes that a kind of shell of column is prefabricated with what part beam section one-piece casting made according to the concept of inflection point
Node, will node overlapping beam section be formed integrally with vertical shell of column, each node overlapping beam section pour section, inverted T-shaped including flute profile
Structural steel connecting member and reinforcement cage skeleton；Flute profile pours section for bar shaped pours section, and flute profile pours one end of section and vertical shell of column system
Integrally, the other end is embedded with inverted T-shaped structural steel connecting member along its length, and the bottom of reinforcement cage skeleton is poured and is filled in flute profile and pours section
Interior, the top of reinforcement cage skeleton stretches out flute profile and pours section, solves existing precast beam and is relatively difficult to ensure with the connection integrity of prefabricated post
The problem of card.But it is easily produced during application because inverted T-shaped structural steel connecting member is different from the thermal coefficient of expansion of prefabricated component
Raw crackle, influences casting quality；And post and beam be it is prefabricated be integrated, need prefabricated different size simultaneously in different occasions
Beam and column, be unfavorable for being widely popularized.
Utility model content
In order to realize above-mentioned technical purpose, the utility model provides a kind of one-time formed multispan precast beam, with connection
Reliability, separation not easy to break, the advantages of anti-seismic performance is good, and in actual application, the engineering time is substantially shorter, be easy to
Operation, in can apply to all prefabricated assembled frame systems.
The specific technical scheme that the utility model is taken is：
A kind of one-time formed multispan precast beam, including precast beam frame structure and concrete bodies；The precast beam frame
Frame structure is put down including the vertical muscle in beam bottom along the multispan parallel distribution of precast beam length direction, some along multispan precast beam length direction
Waist muscle and some back reinforcing bars along the multispan parallel distribution of precast beam length direction in the beam of row distribution, and back steel
The vertical muscle of waist muscle and beam bottom is to be distributed from top to bottom successively in muscle, beam；The vertical muscle of waist muscle and beam bottom is using pre- in back reinforcing bar, beam
Beam stirrup colligation shaping processed；The concrete bodies have several, and several concrete bodies cast-types are coated in back reinforcing bar, beam
Waist muscle is indulged on muscle and prefabricated beam stirrup with beam bottom, and installation gap is left between adjacent concrete body；Wherein precast beam hoop
Expose concrete bodies in the top that muscle is only distributed in the part and prefabricated beam stirrup for being cast with concrete bodies；The installation gap
Face size of the spacing not less than multispan precast beam.
Used as the improved technical scheme of the utility model, multispan precast beam center section longitudinal direction in the width direction is cut
Face is convex shape structure.
Used as the improved technical scheme of the utility model, the prefabricated beam stirrup is open type stirrup, and open type hoop
The opening of muscle is towards prefabricated top surface of the beam direction and forms bending.
The utility model beneficial effect：
The continuity of the vertical muscle of multispan precast beam reduces the operation of the vertical muscle of the tie-beam at bean column node, so as to cancel multispan
Beam-ends keyway at precast beam and column connected node, it is to avoid keyway is to the weakening of beam and saves the expense of node connection, more
Embody well prefabrication energy-saving and environmental protection, it is efficient the advantages of；Particularly can outrigger and grid beam it is integral prefabricated, very well
Ground ensures outrigger part in construction and the reliability of operational phase；After the lifting of multispan precast beam, indulged because the vertical muscle of beam has been inserted into capital
In muscle, the stability of beam is improve, and the continuous deformation to beam in the construction stage of reinforcing bar also has good resistant function.
In sum, one-time formed multispan precast beam of the present utility model, with connection reliability, separation not easy to break,
The advantages of anti-seismic performance is good, and in actual application, the engineering time is substantially shorter, it is easy to operation, can apply to institute
In having a prefabricated assembled frame system.
Brief description of the drawings
A kind of Fig. 1 structural representations of one-time formed multispan precast beam of the present utility model；
A kind of schematic cross-section of Fig. 2 one-time formed multispan precast beams of the present utility model at A-A；
A kind of Fig. 3 scheme of installations of one-time formed multispan precast beam of the present utility model；
In figure：1st, outrigger；2nd, grid beam；3rd, prefabricated beam stirrup；4th, the vertical muscle in beam bottom；5th, waist muscle in beam；6th, back reinforcing bar；7th, beam
The vertical muscle in top；8th, back stirrup；9th, interior stirrup.
Specific embodiment
To make the purpose and technical scheme of the utility model embodiment clearer, implement below in conjunction with the utility model
The accompanying drawing of example, the technical scheme to the utility model embodiment is clearly and completely described.Obviously, described embodiment
It is a part of embodiment of the present utility model, rather than whole embodiments.Based on described embodiment of the present utility model,
The every other embodiment that those of ordinary skill in the art are obtained on the premise of without creative work, belongs to this practicality
Novel protected scope.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein（Including technology art
Language and scientific terminology）With with the utility model art in those of ordinary skill general understanding identical meaning.Also
It should be understood that those terms defined in such as general dictionary should be understood that with the context of prior art in
The consistent meaning of meaning, and unless defined as here, will not be explained with idealization or excessively formal implication.
The implication of " connection " described in the utility model can be between part be directly connected to be part between
By being indirectly connected with for other parts.
A kind of one-time formed multispan precast beam, including precast beam frame structure and concrete bodies；The precast beam frame
Frame structure is including the vertical muscle 4 in beam bottom along the multispan parallel distribution of precast beam length direction, some along multispan precast beam length direction
Waist muscle 5 and some back reinforcing bars 6 along the multispan parallel distribution of precast beam length direction in the beam of parallel distribution, and beam
The vertical muscle 4 of waist muscle 5 and beam bottom is to be distributed from top to bottom successively in the reinforcing bar 6, beam of top；Waist muscle 5 and beam bottom in back reinforcing bar 6, beam
Vertical muscle 4 is molded using the prefabricated colligation of beam stirrup 3；The concrete bodies have several, and several concrete bodies cast-types are coated on
Waist muscle 5 is indulged on muscle 4 and prefabricated beam stirrup 3 with beam bottom in back reinforcing bar 6, beam, and installation is left between adjacent concrete body
Gap；Expose coagulation in the top that wherein prefabricated beam stirrup 3 is only distributed in the part and prefabricated beam stirrup 3 for being cast with concrete bodies
The soil body；Face size of the spacing in the installation gap not less than multispan precast beam.The back steel for pouring concrete bodies
Waist muscle 5, the vertical muscle 4 in beam bottom can be used as outrigger 1 or hoop beams 2 with prefabricated beam stirrup 3 in muscle 6, beam.
Used as the improved technical scheme of the utility model, multispan precast beam center section longitudinal direction in the width direction is cut
Face is convex shape structure.
Used as the improved technical scheme of the utility model, the prefabricated beam stirrup 3 is open type stirrup, and open type hoop
The opening of muscle is towards prefabricated top surface of the beam direction and forms bending.
Another object of the present utility model is to provide a kind of construction method of one-time formed multispan precast beam, including such as
Lower step：
Step one, the lifting of multispan precast beam is placed on column and ensures that installing gap location falls within the top of column, and
And the vertical muscle 4 of waist muscle 5 and beam bottom is embedded in the vertical muscle of column in the back reinforcing bar 6, beam of installation gap location；
Step 2, using interior stirrup 9 by the vertical muscle hoop of waist muscle 5 in back reinforcing bar 6, beam, the vertical muscle 4 in beam bottom and column one
Rise；
Step 3, the vertical muscle 7 of back for laying in-situ layer on the surface of precast beam, the vertical muscle 7 of back are interspersed in precast beam hoop
Muscle 3 is exposed in the part outside concrete bodies；
Step 4, the back stirrup 8 of in-situ layer is fixed on the vertical muscle 7 of back, arranges prefabricated board or cast-in-situ template, and
Carry out cast-in-place part and pour operation.The construction method of existing multispan precast beam, it can also be used to two across or three across continuous frame beam, together
When be particularly suited for situation of the Vierendeel girder side with outrigger 1.
Used as the improved technical scheme of the utility model, the interior stirrup 9 is two U-shaped stirrups, and two U-shaped stirrups
In the way of to inserting by the vertical muscle hoop of waist muscle 5, the vertical muscle 4 in beam bottom and column in back reinforcing bar 6, beam together.
Specific operating type, in factory or job site, by waist muscle 5 in the vertical muscle 4, beam in beam bottom, back reinforcing bar 6 is elongated sets
Be placed in whole precast beam body, do not blocked at node, using prefabricated beam stirrup 3 by design requirement colligation it is good after be positioned over what is made
Two across or the prefabricated beam mould of multispan of three bridges in, disturbing concrete one-shot forming, when concrete to meet demoulding strength when it is de-
Mould；At the construction field (site) after the completion of pillar construction, lifting multispan precast beam is held on the bracket of post side（Also ox can be replaced by support
Leg）, and multispan precast beam installs waist muscle 5 and back reinforcing bar 6 in the vertical muscle 4, beam in gap location beam bottom and is embedded in the vertical muscle inner side of post, then
Stirrup 9 in post core space is inserted respectively by cylinder both sides, then the vertical muscle 7 of the back of in-situ layer is tied to the top of prefabricated beam stirrup 3
In crotch（Here prefabricated beam stirrup 3 is open type stirrup, and open type stirrup opening towards prefabricated top surface of the beam direction and shape
Into bending）, the back stirrup 8 of in-situ layer is fixed on the vertical muscle 7 of the back of in-situ layer again then, then arrange prefabricated board
And just can directly carry out cast-in-place part after reinforcing bar or Bars In Poured Concrete Slab template and reinforcing bar pour operation.
Wherein, after having lifted post at the construction field (site), directly multispan precast beam can be shelved on post bracket or support, now
Can directly carry out that follow-up prefabricated board is shelved and cast-in-place surface layer such as pours at the working procedure, without connecting two at bean column node
The vertical muscle of curb girder is overlapped using additional bar, effectively reduces working procedure.
Implementation method of the present utility model is these are only, its description is more specific and detailed, but can not therefore understood
It is the limitation to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, not taking off
On the premise of conceiving from the utility model, various modifications and improvements can be made, these belong to protection of the present utility model
Scope.
Claims (3)
1. a kind of one-time formed multispan precast beam, it is characterised in that including precast beam frame structure and concrete bodies；It is described
Precast beam frame structure is including the vertical muscle in beam bottom along the multispan parallel distribution of precast beam length direction, some along the prefabricated beam length of multispan
Waist muscle and some back reinforcing bars along the multispan parallel distribution of precast beam length direction in the beam of the parallel distribution in direction are spent, and
And the vertical muscle of waist muscle and beam bottom is to be distributed from top to bottom successively in back reinforcing bar, beam；Waist muscle and beam bottom are vertical in back reinforcing bar, beam
Muscle is molded using prefabricated beam stirrup colligation；The concrete bodies have several, and several concrete bodies cast-types are coated on back
Waist muscle and beam bottom are indulged on muscle and prefabricated beam stirrup in reinforcing bar, beam, and installation gap is left between adjacent concrete body；Wherein
Expose concrete bodies in the top that prefabricated beam stirrup is only distributed in the part and prefabricated beam stirrup for being cast with concrete bodies；The peace
Fill the face size of the spacing not less than multispan precast beam in gap.
2. a kind of one-time formed multispan precast beam according to claim 1, it is characterised in that in the multispan precast beam
Between part longitudinal cross-section in the width direction be convex shape structure.
3. a kind of one-time formed multispan precast beam according to claim 1, it is characterised in that the prefabricated beam stirrup is
Open type stirrup, and open type stirrup opening is towards prefabricated top surface of the beam direction and forms bending.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621144108.9U CN206189743U (en) | 2016-10-21 | 2016-10-21 | One shot forming's multispan is beam manufacturing in advance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621144108.9U CN206189743U (en) | 2016-10-21 | 2016-10-21 | One shot forming's multispan is beam manufacturing in advance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206189743U true CN206189743U (en) | 2017-05-24 |
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ID=58732390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621144108.9U Active CN206189743U (en) | 2016-10-21 | 2016-10-21 | One shot forming's multispan is beam manufacturing in advance |
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| Country | Link |
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| CN (1) | CN206189743U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437026A (en) * | 2016-10-21 | 2017-02-22 | 季兆桐 | One-step formed multispan prefabricated beam and construction method thereof |
-
2016
- 2016-10-21 CN CN201621144108.9U patent/CN206189743U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437026A (en) * | 2016-10-21 | 2017-02-22 | 季兆桐 | One-step formed multispan prefabricated beam and construction method thereof |
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