CN108756061A - A kind of partial precast assembly prestress steel reinforced concrete hybrid beam and construction method - Google Patents
A kind of partial precast assembly prestress steel reinforced concrete hybrid beam and construction method Download PDFInfo
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- CN108756061A CN108756061A CN201810629207.3A CN201810629207A CN108756061A CN 108756061 A CN108756061 A CN 108756061A CN 201810629207 A CN201810629207 A CN 201810629207A CN 108756061 A CN108756061 A CN 108756061A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 90
- 239000010959 steel Substances 0.000 title claims abstract description 90
- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 25
- 238000010276 construction Methods 0.000 title claims description 36
- 239000011372 high-strength concrete Substances 0.000 claims abstract description 78
- 239000004567 concrete Substances 0.000 claims abstract description 70
- 210000003205 muscle Anatomy 0.000 claims abstract description 32
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 15
- 238000005452 bending Methods 0.000 claims abstract description 3
- 239000002131 composite material Substances 0.000 claims description 7
- 239000002689 soil Substances 0.000 claims description 7
- 230000008929 regeneration Effects 0.000 claims description 5
- 238000011069 regeneration method Methods 0.000 claims description 5
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 210000002421 cell wall Anatomy 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 229920006389 polyphenyl polymer Polymers 0.000 claims description 2
- 229920006327 polystyrene foam Polymers 0.000 claims description 2
- 239000011810 insulating material Substances 0.000 claims 1
- 238000010089 rubber coagulation Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 5
- 238000005336 cracking Methods 0.000 abstract 1
- 238000009417 prefabrication Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000009415 formwork Methods 0.000 description 4
- 230000001413 cellular effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011178 precast concrete Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000013585 weight reducing agent Substances 0.000 description 2
- 206010054949 Metaplasia Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000015689 metaplastic ossification Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000009416 shuttering Methods 0.000 description 1
- 239000002436 steel type Substances 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
- E04C3/29—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
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- Engineering & Computer Science (AREA)
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- Composite Materials (AREA)
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- Structural Engineering (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
A kind of partial precast assembly prestress steel reinforced concrete hybrid beam is made of using the cast-in-place thought of partial precast assembled portion pre-erection and cast-in-place part, including prefabricated U-shaped high-strength concrete slot；It is set to shaped steel parallel with length direction in prefabricated U-shaped high-strength concrete slot；It is set to the prefabricated U-shaped high-strength concrete slot bottom vertical muscle one parallel with length direction；It is set to stirrup vertical with length direction in prefabricated U-shaped high-strength concrete slot；It is set to light core film in prefabricated U-shaped high-strength concrete slot and parallel with flute length direction；It is set to the prefabricated U-shaped high-strength concrete groove top vertical muscle two parallel with length direction；It is set to presstressed reinforcing steel parallel with length direction in prefabricated U-shaped high-strength concrete slot；The cast-in-place normal concrete one being filled in prefabricated U-shaped high-strength concrete slot；And it is set to the cast-in-place flange plate of prefabricated U-shaped high-strength concrete groove top, the present invention can mitigate the dead weight of beam, and simple bending end stress performance is good, save material, improve beam cracking resistance.
Description
Technical field
The invention belongs to technical field of buildings, more particularly to a kind of partial precast assembly prestress steel reinforced concrete mixing
Beam.
Background technology
In modern reinforced concrete structure, the structure type applied in early days is monolithic reinforced concrete structure, it be
Structure made of live formwork and one-piece casting has many advantages, such as that materials are easy, overall performance is good, rigidity is big, normability is good.But
Also have the shortcomings that during design, construction and use it is very much, such as need to consider from great factor in the design process；Scene into
There is working procedure various when row formwork is with construction, labo r usage is big, and the period is long, of high cost etc.；There is crack resistance poor during use
The shortcomings of, positive impetus is lacked to establishing resource economizing type and friendly environment society.
With the development of building construction technology, prefabricated concrete structure occurs, and it is main stress that it, which is by prefabricated components,
Component is through assembling or connecting the concrete structure of formation.Compared with cast-in-place concrete structure, industry may be implemented in fabricated construction
Metaplasia is produced, and since component is poured and conserved in factory, the quality of component is ensured, the making of building element is not by season
The influence and limitation of section, and the construction period is greatly shortened, production efficiency is high, has saved a large amount of support shuttering, has been conducive to
Environmental protection, however, there are also many disadvantages, and overall performance is poor, and design difficulty is larger, impervious poor, unfavorable antidetonation,
Transporting installation, there is also certain problems.
Invention content
In order to overcome the disadvantages of the above prior art, the purpose of the present invention is to provide a kind of partial precast assembly prestress
Steel reinforced concrete hybrid beam, the advantages of remaining cast-in-place and fabricated construction, while solving the deficiency of two kinds of structures, have existing
The characteristics of easy construction, of low cost, function admirable.
To achieve the goals above, the technical solution adopted by the present invention is：
A kind of partial precast assembly prestress steel reinforced concrete hybrid beam, which is characterized in that including：
Prefabricated U-shaped high-strength concrete slot 1；
The cast-in-place normal concrete 1 being filled in prefabricated U-shaped high-strength concrete slot 1；
It is set to the shaped steel 5 that in prefabricated U-shaped high-strength concrete slot 1 and length direction is parallel with flute length direction；
It is set to 1 slot bottom of prefabricated U-shaped high-strength concrete slot and several vertical muscle one 6 parallel with flute length direction；
It is set in prefabricated U-shaped high-strength concrete slot 1 and the stirrup 7 of several closures vertical with flute length direction；
It is set to 1 groove top of prefabricated U-shaped high-strength concrete slot and several vertical muscle two 8 parallel with flute length direction；
It is set to the light core film 9 that in prefabricated U-shaped high-strength concrete slot 1 and length direction is parallel with flute length direction, lightweight
Core film 9 is closely set in the web side of shaped steel 5；
It is set to the presstressed reinforcing steel 10 that in prefabricated U-shaped high-strength concrete slot 1 and length direction is parallel with flute length direction；
And
It is set to the cast-in-place flange plate at 1 top of prefabricated U-shaped high-strength concrete slot.
The lower part of the I-steel 5 is located in the slot bottom of prefabricated U-shaped high-strength concrete slot 1, and presstressed reinforcing steel 10 is according to construction
It is required that carrying out tensioning, the lower part of the closed stirrups 7 is located in the cell wall and slot bottom of prefabricated U-shaped high-strength concrete slot 1, indulges muscle one
6 bottoms for being located at the trench bottom of prefabricated U-shaped high-strength concrete slot 1 and being welded in 7 closed circle of stirrup, vertical muscle 28 are located at prefabricated U
The top of type high-strength concrete slot 1 and the top being welded in 7 closed circle of stirrup, the prefabricated U-shaped high-strength concrete slot 1, type
Steel 5, vertical muscle 1, stirrup 7, vertical muscle 28, light core film 9 and presstressed reinforcing steel 10 are pre-erection.
In the longitudinal direction, prefabricated U-shaped high-strength concrete slot 1 is stretched out at both ends to the shaped steel 5, the shaped steel 5 be H profile steel,
I-steel or cellular steel.
The light core film 9 be polystyrene foam core film, polyphenyl inner membrance, inflating rubber core film or other light fire-proofs every
Hot material.
The cast-in-place normal concrete 1 and cast-in-place flange plate are cast-in-place part.
Concrete strength used by the cast-in-place normal concrete 1 and cast-in-place flange plate is less than prefabricated high-strength concrete
Concrete strength used by rectangular section 1.
Concrete used by the cast-in-place normal concrete 1 and cast-in-place flange plate is regeneration concrete, lightweight aggregate is mixed
Solidifying soil, rubber concrete, sound absorption concrete or thermal-insulating concrete.
The cast-in-place flange plate uses composite slab with profiled steel sheeting or laminated floor slab.
The composite slab with profiled steel sheeting is by profiled sheet or precast slab 3 and cast-in-place normal concrete 24
Composition, wherein profiled sheet or precast slab 3 are connect with the top of prefabricated U-shaped high-strength concrete slot 1.
The present invention also provides the construction methods of the partial precast assembly prestress steel reinforced concrete hybrid beam, and step is such as
Under：
1) in factory, vertical muscle 1 is welded on the bottom in the circle of stirrup 7, vertical muscle 28 is welded on the top in the circle of stirrup 7,
By Lightweight core mould 9 be close to 5 web side of shaped steel and in specific position (simple bending section) it is fixed, presstressed reinforcing steel 10 according to construction requirement into
Row tensioning pours the lower part of stirrup 7, vertical muscle 1 and shaped steel 5 and the lower part of presstressed reinforcing steel 10 in prefabricated U-shaped high-strength concrete
In slot 1, pre-erection is completed；
2) at the scene, the both ends of shaped steel 5 and coupled column or steel column are directly connected to, or are connect with concrete column transition；
3) cast-in-place normal concrete 1 is poured into prefabricated U-shaped high-strength concrete slot 1；
4) cast-in-place flange plate is poured to 1 top of prefabricated U-shaped high-strength concrete slot.
Compared with prior art, the beneficial effects of the invention are as follows：
1) easy for construction.
The steel skeleton part of the prefabrication and assembly construction prestressed steel reinforced concrete hybrid beam includes that beam lower part is indulged muscle, stirrup, answered in advance
Power muscle, shaped steel and lower part concrete, the part be prefabricated in the factory production complete, building site by the shaped steel of pre-erection with combine
Column or steel column are directly connected to (or being connect with concrete column transition), then casting concrete floor completes installation.With traditional SRC beams
It compares, scene does not have to assembling reinforcement, formwork, form removal and sets up temporary support under beam.If floor uses profiled sheet-coagulation local soil type
Plywood or laminated floor slab are then not necessarily to formwork, form removal and set temporary support, on-site construction processes, construction in entire work progress
Material and construction working hour will reduce, and construction efficiency will be improved.
2) weight reduction.
Certain Lightweight core mould is added in interlude in the middle part of shaped steel in the prefabricated U-shaped high-strength concrete slot, or uses honeycomb type
Steel, after the completion of beam and concrete floor slab placement, compared with being not added with Lightweight core mould, to make the whole weight reduction of beam.And beam is by equal
When cloth load action, under the premise of resist torque is substantially unaffected, certain Lightweight core mould is added in middle part, meets very much shearing span centre
The big loading characteristic in small both ends.
3) cost is reduced.
In the construction of traditional SRC beams, beam pours together with floor, i.e., concrete is necessary for same in concrete and floor in beam
One kind and same strength grade concrete.The larger girder with rolled steel section en cased in concrete of span mostly uses high-strength concrete.Floor is also the same
Cost is caused to increase to make floor bar dosage increase using high-strength concrete.And the prefabrication and assembly construction prestressing force shaped steel coagulation
Native hybrid beam only uses high-strength concrete in beam prefabricated part, and beam and the cast-in-place part of floor are mixed using normal concrete, regeneration
Solidifying soil or lightweight aggregate concrete cause cost to reduce to which floor bar dosage is reduced.
3) functional promotion.
Concrete uses varying strength in concrete and floor in the prefabrication and assembly construction prestressed steel reinforced concrete hybrid beam beam
The concrete of grade meets multi-functional requirement.To mitigate superstructure dead weight, using lightweight aggregate concrete；For improve superstructure vibration damping every
Audio fruit, using rubber concrete or sound absorption concrete；To improve superstructure heat-insulating property, using thermal-insulating concrete.
4) construction quality is good.
In the construction of traditional SRC beams, working procedure is more, difficulty of construction is big, concrete vibrating in SRC beam webs often occurs
The problems such as reinforcing bar misplaces in difference, Concrete intensity insufficient and beam, construction quality are not easy to control.And in the prefabrication and assembly construction prestressing force type
In steel concrete hybrid beam, web part is mostly prefabrication, and concreting vibrates convenient and steam curing can be used, mixes
Solidifying soil construction quality is easily controllable.
Generally speaking, compared with traditional SRC beams, which simplifies construction work
Sequence and difficulty of construction efficiently solve some long-term crucial problems for restricting tradition SRC beams and promoting and applying, and can give full play to
It is mixed to can be widely applied to all kinds of reinforcing bars in the advantage of stress performance, endurance quality, fire resistance and economic performance etc. for beam
In solidifying soil and steel building, it is particularly suitable for large span, heavy load or complexity, irregular skyscraper and Super High and builds
It builds.Therefore, prefabrication and assembly construction prestressed steel reinforced concrete hybrid beam is carried out and furthers investigate great practical meaning in engineering.
Description of the drawings
Fig. 1 is the stereoscopic schematic diagram of steel skeleton part of the present invention.
Fig. 2 is the stereoscopic schematic diagram of pre-erection of the present invention.
Fig. 3 is the stereoscopic schematic diagram of the cast-in-place part of the present invention.
Fig. 4 is the schematic cross-section that the present invention uses i shaped steel pre-erection.
Fig. 5 is A-A direction views in Fig. 4, i.e., the sectional view of Lightweight core mould in prefabricated U-shaped high-strength concrete slot.
Fig. 6 is B-B direction view in Fig. 4, i.e. prefabricated U-shaped high-strength concrete slot cross-section figure.
Fig. 7 is the schematic cross-section that the present invention uses the cast-in-place part of i shaped steel.
Fig. 8 is C-C direction views in Fig. 7, i.e., the sectional view of Lightweight core mould in prefabricated U-shaped high-strength concrete slot.
Fig. 9 is D-D direction views in Fig. 7, i.e. prefabricated U-shaped high-strength concrete slot cross-section figure.
Figure 10 is the schematic cross-section that the present invention uses honeycomb shaped steel pre-erection.
Figure 11 is E-E direction views in Figure 10, i.e., the sectional view of Lightweight core mould in prefabricated U-shaped high-strength concrete slot.
Figure 12 is F-F direction views in Figure 10, i.e. prefabricated U-shaped high-strength concrete slot cross-section figure.
Figure 13 is the schematic cross-section that the present invention uses the cast-in-place part of honeycomb shaped steel.
Figure 14 is G-G direction views in Figure 13, i.e., the sectional view of Lightweight core mould in prefabricated U-shaped high-strength concrete slot.
Figure 15 is H-H direction views in Figure 13, i.e. prefabricated U-shaped high-strength concrete slot cross-section figure.
Specific implementation mode
The embodiment that the present invention will be described in detail with reference to the accompanying drawings and examples.
A kind of partial precast assembly prestress steel reinforced concrete hybrid beam of the present invention, it is cast-in-place using partial precast assembled portion
Thought, be made of pre-erection and cast-in-place part, as shown in Fig. 1 to Figure 15, including：
Prefabricated U-shaped high-strength concrete slot 1；It is set in prefabricated U-shaped high-strength concrete slot 1 and length direction and flute length direction
Parallel shaped steel 5；It is set to 1 slot bottom of prefabricated U-shaped high-strength concrete slot and several vertical muscle one 6 parallel with flute length direction；Setting
In prefabricated U-shaped high-strength concrete slot 1 and the stirrup 7 of several closures vertical with flute length direction；It is high-strength mixed to be set to prefabricated U-shaped
1 top of solidifying soil box and several vertical muscle two 8 parallel with flute length direction；It is set in prefabricated U-shaped high-strength concrete slot 1 and length side
To the Lightweight core mould 9 parallel with flute length direction；It is set in prefabricated U-shaped high-strength concrete slot 1 and length direction and flute length direction
Parallel presstressed reinforcing steel 10；The cast-in-place normal concrete 1 being filled in prefabricated U-shaped high-strength concrete slot 1；And it is set to pre-
Make the cast-in-place flange plate at 1 top of U-shaped high-strength concrete slot.
Wherein, it as shown in Fig. 2, the lower part of shaped steel 5 is embedded in the slot bottom of prefabricated U-shaped high-strength concrete slot 1, indulges muscle 1 and welds
It is connected on the bottom in the circle of stirrup 5, the lower part of stirrup 7 is embedded in the cell wall and slot bottom of prefabricated U-shaped high-strength concrete slot 1 and top
Vacantly, it indulges muscle 28 and is welded on the circle inner top of 7 overhanging portion of stirrup and parallel with vertical muscle 1, presstressed reinforcing steel 10 is wanted according to construction
Carry out tensioning, prefabricated U-shaped high-strength concrete slot 1 is asked shaped steel 5, vertical muscle 1, stirrup 7, to indulge muscle 28, Lightweight core mould 9 and answer in advance
Power muscle 10 is pre-erection.
As shown in figure 3, cast-in-place normal concrete 1 and cast-in-place flange plate form cast-in-place part.Cast-in-place flange plate can be adopted
With composite slab with profiled steel sheeting or laminated floor slab.With composite slab with profiled steel sheeting by profiled sheet in the present embodiment
Or precast slab 3 and cast-in-place normal concrete 24 form, wherein profiled sheet or precast slab 3 and prefabricated U-shaped is high
The top of reinforced concrete slot 1 connects.After cast-in-place, the top of shaped steel 5, the top of stirrup 7 and vertical muscle 28 are in cast-in-place part
In.
Wherein：
1) concrete involved by pre-erection uses high-strength concrete, and the anti-of precast and assembled reinforced concrete beam can be improved
Fragility energy, endurance quality and fire resistance.
2) in the longitudinal direction, prefabricated U-shaped high-strength concrete slot 1 is stretched out at both ends to shaped steel 5, i.e., in prefabricated type steel skeleton part
Overhanging segment shaped steel is attached in construction and installation with the overhanging shaped steel bolt of pre- buried column, consequently facilitating prefabricated high-strength concrete
Framework of steel reinforcement.
3) design parameters such as length, height, material involved by Lightweight core mould of the present invention can be counted according to corresponding design
Calculation method and Specific construction case optimize.
4) H profile steel or I-steel may be used in shaped steel 5, and for there is pre-buried horizontal pipeline in requirement beam, it can be by H
Shaped steel or I-steel change cellular steel into, and adjustment cellular steel cavity size is to meet the actual needs.
Concrete construction method is：
Be prefabricated in the factory the lower part web part of beam first, then in the lower part web part of building-site mounting rail, most
The whole top edge of a wing plate part for pouring beam together with concrete floor afterwards.Whole shaped steel top flanges, top in beam prefabricated part are vertical
Muscle and stirrup are exposed.The prefabricated web part in lower part of beam is the prefabricated U-shaped high-strength concrete with presstressed reinforcing steel and with light core film
The high-strength concrete framework of steel reinforcement of slot (i.e. web)；The cast-in-place edge of a wing plate part in top of beam can be armoured concrete slab, die mould
The forms such as steel plate and concrete composite plate and precast concrete superimposed sheet, wherein cast-in-place concrete can be normal concrete, regeneration
The different types concrete such as concrete, lightweight aggregate concrete.By various forms of prefabricated web parts and various forms of existing
The intercombination of flange plate is poured, can be with optimum organization at various types of beams, and respectively have performance characteristics and an advantage, it is suitable for difference
Project situation demand.
For the present invention on the basis of traditional square type precast beam, pre-erection uses I-steel, high-strength concrete and presstressed reinforcing steel
It pours together, effectively improves pre-erection globality, meet on-site hoisting requirement, be a kind of good method for prefabricating.According to this
Invention proposes design method, can advanced optimize honeycomb shape, I-steel type, and precast concrete inner surface lines is prefabricated
The parameters such as part concrete strength, cast-in-place concrete intensity and type (regeneration concrete, lightweight aggregate concrete etc.) are with reality
Now this example optimal designs.
Claims (10)
1. a kind of partial precast assembly prestress steel reinforced concrete hybrid beam, which is characterized in that including：
Prefabricated U-shaped high-strength concrete slot (1)；
The cast-in-place normal concrete one (2) being filled in prefabricated U-shaped high-strength concrete slot (1)；
It is set to the shaped steel (5) that in prefabricated U-shaped high-strength concrete slot (1) and length direction is parallel with flute length direction；
It is set to prefabricated U-shaped high-strength concrete slot (1) slot bottom and several vertical muscle one (6) parallel with flute length direction；
It is set in prefabricated U-shaped high-strength concrete slot (1) and the stirrup of several closures vertical with flute length direction (7)；
It is set to prefabricated U-shaped high-strength concrete slot (1) groove top and several vertical muscle two (8) parallel with flute length direction；
It is set to the light core film (9) that in prefabricated U-shaped high-strength concrete slot (1) and length direction is parallel with flute length direction, lightweight
Core film (9) is closely set in the web side of shaped steel (5)；
It is set to the presstressed reinforcing steel (10) that in prefabricated U-shaped high-strength concrete slot (1) and length direction is parallel with flute length direction；
And
The cast-in-place flange plate being set at the top of prefabricated U-shaped high-strength concrete slot (1).
2. partial precast assembly prestress steel reinforced concrete hybrid beam according to claim 1, which is characterized in that the I-shaped
The lower part of steel (5) is located in the slot bottom of prefabricated U-shaped high-strength concrete slot (1), and presstressed reinforcing steel (10) is opened according to construction requirement
It draws, the lower part of the closed stirrups (7) is located in the cell wall and slot bottom of prefabricated U-shaped high-strength concrete slot (1), indulges one (6) position of muscle
Trench bottom in prefabricated U-shaped high-strength concrete slot (1) and the bottom that is welded in stirrup (7) closed circle, indulge muscle two (8) be located at it is pre-
The top made the top of U-shaped high-strength concrete slot (1) and be welded in stirrup (7) closed circle, the prefabricated U-shaped high-strength concrete
Slot (1), shaped steel (5), vertical muscle one (6), stirrup (7), vertical muscle two (8), light core film (9) and presstressed reinforcing steel (10) are prefabricated
Part.
3. partial precast assembly prestress steel reinforced concrete hybrid beam according to claim 1, which is characterized in that the shaped steel
(5) in the longitudinal direction, prefabricated U-shaped high-strength concrete slot (1) is stretched out at both ends, and the shaped steel (5) is H profile steel, I-steel or bee
Nest steel.
4. partial precast assembly prestress steel reinforced concrete hybrid beam according to claim 1, which is characterized in that the lightweight
Core film (9) is polystyrene foam core film, polyphenyl inner membrance, inflating rubber core film or other light fire-proof heat-insulating materials.
5. partial precast assembly prestress steel reinforced concrete hybrid beam according to claim 1, which is characterized in that described cast-in-place
Normal concrete one (2) and cast-in-place flange plate are cast-in-place part.
6. partial precast assembly prestress steel reinforced concrete hybrid beam according to claim 1, which is characterized in that described cast-in-place
Concrete strength used by normal concrete one (2) and cast-in-place flange plate is less than prefabricated high-strength concrete rectangular section (1) institute
The concrete strength of use.
7. partial precast assembly prestress steel reinforced concrete hybrid beam according to claim 1, which is characterized in that described cast-in-place
Concrete used by normal concrete one (2) and cast-in-place flange plate is regeneration concrete, lightweight aggregate concrete, rubber coagulation
Soil, sound absorption concrete or thermal-insulating concrete.
8. partial precast assembly prestress steel reinforced concrete hybrid beam according to claim 1, which is characterized in that described cast-in-place
Flange plate uses composite slab with profiled steel sheeting or laminated floor slab.
9. partial precast assembly prestress steel reinforced concrete hybrid beam according to claim 8, which is characterized in that the die mould
Steel plate and concrete composite plate is made of profiled sheet or precast slab (3) and cast-in-place normal concrete two (4), wherein pressing
Shape steel plate or precast slab (3) are connect with the top of prefabricated U-shaped high-strength concrete slot (1).
10. the construction method of partial precast assembly prestress steel reinforced concrete hybrid beam, feature exist according to claim 1
In steps are as follows：
1) in factory, vertical muscle one (6) is welded on the bottom in stirrup (7) circle, vertical muscle two (8) is welded in stirrup (7) circle
Lightweight core mould (9) is close to shaped steel (5) web side and fixed, presstressed reinforcing steel (10) root in specific position (simple bending section) by top
Tensioning is carried out according to construction requirement, the lower part of stirrup (7), vertical muscle one (6) and shaped steel (5) and the lower part of presstressed reinforcing steel (10) are poured
It builds in prefabricated U-shaped high-strength concrete slot (1), completes pre-erection；
2) both ends of shaped steel (5) are directly connected to coupled column or steel column at the scene, or are connect with concrete column transition；
3) cast-in-place normal concrete one (2) is poured into prefabricated U-shaped high-strength concrete slot (1)；
4) cast-in-place flange plate is poured to prefabricated U-shaped high-strength concrete slot (1) top.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109537805A (en) * | 2018-11-21 | 2019-03-29 | 江南大学 | One kind " T-type " partial precast combination beam and its construction method |
| CN109537807A (en) * | 2018-11-21 | 2019-03-29 | 江南大学 | A kind of partial precast shape steel-concrete combined beam |
| CN109537804A (en) * | 2018-11-21 | 2019-03-29 | 江南大学 | A kind of partial precast shape steel-concrete combined beam and its construction method |
| CN111155713A (en) * | 2020-02-17 | 2020-05-15 | 西安建筑科技大学 | Prefabricated superposed beam and construction method |
| CN112942660A (en) * | 2021-01-22 | 2021-06-11 | 西安理工大学 | Novel steel and recycled concrete combined beam slab and assembling method thereof |
| CN113308981A (en) * | 2021-05-31 | 2021-08-27 | 北京航空航天大学 | Transverse connection structure of prefabricated concrete beam flange and construction method |
| CN113482237A (en) * | 2021-07-21 | 2021-10-08 | 重庆大学 | Reinforced concrete composite T beam adopting prefabricated U-shaped ECC permanent template |
| CN113585578A (en) * | 2021-08-13 | 2021-11-02 | 西安建筑科技大学 | Prefabricated assembly type prestress combined floor system and construction method |
| CN114800769A (en) * | 2022-04-13 | 2022-07-29 | 西南大学 | Manufacturing method of prefabricated honeycomb-shaped steel partially-wrapped recycled concrete column |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594556A (en) * | 2014-12-05 | 2015-05-06 | 西安建筑科技大学 | Prefabricated type steel reinforced concrete beam with transverse steel partition boards and construction method |
| CN104594557A (en) * | 2014-12-05 | 2015-05-06 | 西安建筑科技大学 | Prefabricated reinforced concrete beam with transverse steel partition boards and construction method |
| CN106836639A (en) * | 2017-04-11 | 2017-06-13 | 南京工业大学 | FRP box-shaped section-concrete combined beam provided with bidirectional shear keys |
| CN106906950A (en) * | 2017-04-18 | 2017-06-30 | 南京工程学院 | A kind of pre-stress FRP pipe concrete thin-walled box-section member |
| US20170314268A1 (en) * | 2014-10-31 | 2017-11-02 | South China University Of Technology | I-shaped steel with discontinuous top flange reinforced compound concrete beam containing demolished concrete lumps and construction process of such beam |
| CN208502067U (en) * | 2018-06-19 | 2019-02-15 | 西安建筑科技大学 | A kind of partial precast assembly prestress steel reinforced concrete hybrid beam |
-
2018
- 2018-06-19 CN CN201810629207.3A patent/CN108756061A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170314268A1 (en) * | 2014-10-31 | 2017-11-02 | South China University Of Technology | I-shaped steel with discontinuous top flange reinforced compound concrete beam containing demolished concrete lumps and construction process of such beam |
| CN104594556A (en) * | 2014-12-05 | 2015-05-06 | 西安建筑科技大学 | Prefabricated type steel reinforced concrete beam with transverse steel partition boards and construction method |
| CN104594557A (en) * | 2014-12-05 | 2015-05-06 | 西安建筑科技大学 | Prefabricated reinforced concrete beam with transverse steel partition boards and construction method |
| CN106836639A (en) * | 2017-04-11 | 2017-06-13 | 南京工业大学 | FRP box-shaped section-concrete combined beam provided with bidirectional shear keys |
| CN106906950A (en) * | 2017-04-18 | 2017-06-30 | 南京工程学院 | A kind of pre-stress FRP pipe concrete thin-walled box-section member |
| CN208502067U (en) * | 2018-06-19 | 2019-02-15 | 西安建筑科技大学 | A kind of partial precast assembly prestress steel reinforced concrete hybrid beam |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109537805A (en) * | 2018-11-21 | 2019-03-29 | 江南大学 | One kind " T-type " partial precast combination beam and its construction method |
| CN109537807A (en) * | 2018-11-21 | 2019-03-29 | 江南大学 | A kind of partial precast shape steel-concrete combined beam |
| CN109537804A (en) * | 2018-11-21 | 2019-03-29 | 江南大学 | A kind of partial precast shape steel-concrete combined beam and its construction method |
| CN111155713A (en) * | 2020-02-17 | 2020-05-15 | 西安建筑科技大学 | Prefabricated superposed beam and construction method |
| CN112942660A (en) * | 2021-01-22 | 2021-06-11 | 西安理工大学 | Novel steel and recycled concrete combined beam slab and assembling method thereof |
| CN113308981A (en) * | 2021-05-31 | 2021-08-27 | 北京航空航天大学 | Transverse connection structure of prefabricated concrete beam flange and construction method |
| CN113482237A (en) * | 2021-07-21 | 2021-10-08 | 重庆大学 | Reinforced concrete composite T beam adopting prefabricated U-shaped ECC permanent template |
| CN113585578A (en) * | 2021-08-13 | 2021-11-02 | 西安建筑科技大学 | Prefabricated assembly type prestress combined floor system and construction method |
| CN114800769A (en) * | 2022-04-13 | 2022-07-29 | 西南大学 | Manufacturing method of prefabricated honeycomb-shaped steel partially-wrapped recycled concrete column |
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