CN209261052U - A kind of assembled partial precast shape steel-concrete combined beam - Google Patents
A kind of assembled partial precast shape steel-concrete combined beam Download PDFInfo
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- CN209261052U CN209261052U CN201821917987.3U CN201821917987U CN209261052U CN 209261052 U CN209261052 U CN 209261052U CN 201821917987 U CN201821917987 U CN 201821917987U CN 209261052 U CN209261052 U CN 209261052U
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Abstract
The utility model relates to a kind of assembled partial precast shape steel-concrete combined beams, belong to technical field of buildings and technical field of structural engineering.The utility model proposes assembled partial precast shape steel-concrete combined beam contain fashioned iron, prereinforced U_shaped concrete, the cast-in-place concrete being filled in inside prereinforced U_shaped concrete, cast-in-place concrete flange plate above cast-in-place concrete and outside fashioned iron and part is built in prereinforced U_shaped concrete, part is built in the framework of steel reinforcement of cast-in-place concrete flange plate, both having combined cast-type fashioned iron-, (bearing capacity is strong for beams of concrete, ductility is high, anti-seismic performance is good) it is (easy for construction with precast concrete beam, construction speed is fast, save labour) the advantages of, existing partial precast steel-concrete composite beam pre-erection is evaded well again and cast-in-place two parts bonding is bad, shearing resistance is weak, the weaker defect of overall performance, suitable for industrialized production, meet the trend of current building industrialization.
Description
Technical field
The utility model relates to a kind of assembled partial precast shape steel-concrete combined beam, belong to technical field of buildings with
And technical field of structural engineering.
Background technique
Cast-type shape steel-concrete combined beam is a kind of common form of steel-concrete composite beam, is mainly characterized by
Fashioned iron is configured in concrete, since concrete is in triaxial stress state under the constraint of fashioned iron, meanwhile, fashioned iron is by concrete packet
It wraps up in and is not susceptible to buckling, this combination is enabled to effectively improve bearing capacity, ductility and the anti-seismic performance of combination beam, because
This, shape steel-concrete combined beam can be applied in longspan structure, high level and super high-rise building.
But since node connects, more complex and process is lengthy and jumbled, and shape steel-concrete combined beam has constructional difficulties, builds
Speed is slow, the defects of a large amount of labour and economic costs need to be spent higher, limits its application in practical projects.
Prefabricated assembled concrete structure is the concrete structure using prefabricated components as main bearing member through being assembled,
Prefabricated assembled concrete combination beam be it is one such, due to its can prefabrication, joint connection in site, have it is easy for construction, build
The advantages that making fast speed, saving labour, and since its component used can be in plant produced, quality is more guaranteed, moreover it is possible to
The formwork at scene, the working procedure of demoulding are reduced, effectively reduces the building waste of construction site, therefore, China is currently big
Power promotes the use of precast concrete.
But prefabricated assembled concrete structure is poor with respect to cast-type type steel-concrete structure globality, many experts
It queries to its stability and anti-seismic performance.
And Japanese scholars are to solve the above problems, propose a kind of combination prefabricated assembled concrete combination beam and cast-type
The partial precast shape steel-concrete combined beam of shape steel-concrete combined beam, so that combination beam both has prefabricated assembled concrete
Beam is easy for construction, saves the advantage of manpower and cost, and has that cast-type fashioned iron-beams of concrete bearing capacity is strong, ductility is good
Advantage.
But the concrete of this beam is since there are prefabricated and cast-in-place two parts, two parts concrete is difficult to cooperate,
It easily leads to two parts concrete and sliding rupture occurs, greatly reduce the bearing capacity of structure.
Therefore, it is badly in need of finding and a kind of new solves existing partial precast shape steel-concrete combined beam two parts concrete
Bond that bad, shearing resistance is weak, the combination beam of the weaker problem of overall performance.
Utility model content
To solve the above problems, the utility model provides a kind of assembled partial precast shape steel-concrete combined beam,
Both fashioned iron-beams of concrete (bearing capacity is strong, ductility is high, anti-seismic performance is good) and precast concrete beam (easy for construction, construction had been combined
Speed is fast, saves labour) the advantages of, and evaded well existing partial precast steel-concrete composite beam pre-erection and
Cast-in-place two parts bond the defect that bad, shearing resistance is weak, overall performance is weaker, are suitable for industrialized production, meet current building
Industrialized trend.
The technical solution of the utility model is as follows:
The utility model provides a kind of assembled partial precast shape steel-concrete combined beam, and the combination beam contains type
Steel 1, the cast-in-place concrete 3 being filled in inside prereinforced U_shaped concrete 2, is located at cast-in-place concrete 3 at prereinforced U_shaped concrete 2
The cast-in-place concrete flange plate 4 of top, and positioned at the outside of fashioned iron 1 and part is built in prereinforced U_shaped concrete 2, in part
It is placed in the framework of steel reinforcement 5 of cast-in-place concrete flange plate 4；
The fashioned iron 1 containing top flange plate 6, bottom wing listrium 7, two pieces for connecting top flange plate 6 and bottom wing listrium 7 or
Two pieces or more of web 8, and positioned at bottom wing listrium 7 close to the both ends of framework of steel reinforcement 5 and through the bolt 9 of bottom wing listrium 7；Institute
It states bottom wing listrium 7 and is embedded to 2 bottom of prereinforced U_shaped concrete；Lightweight filler 10 is filled between the web 8；
The framework of steel reinforcement 5 is parallel to the vertical muscle in 2 flute length direction of prereinforced U_shaped concrete containing four or four or more
11, several perpendicular to bottom wing listrium 7 and around the closed stirrup 12 of vertical muscle 11 and several U-shaped perpendicular to precast concrete
2 flute length direction of slot and the perforated rebar 14 that 6 top of top flange plate is connected to by shear connector 13.
In a kind of embodiment of the utility model, the prereinforced U_shaped concrete 2, cast-in-place concrete 3 and cast-in-place
The material of concrete flange plate 4 can be one of glass pumice concrete, haydite concrete or normal concrete or a variety of.
The glass pumice concrete is recorded in the patent application text of Publication No. CN108585682A.
In a kind of embodiment of the utility model, the material of the prereinforced U_shaped concrete 2 is normal concrete；
The material of the cast-in-place concrete 3 and cast-in-place concrete flange plate 4 is glass pumice concrete.
In a kind of embodiment of the utility model, the cast-in-place concrete flange plate 4 is parallel to bottom wing listrium 7.
In a kind of embodiment of the utility model, the top flange plate 6 is parallel to bottom wing listrium 7.
In a kind of embodiment of the utility model, the length of the bottom wing listrium 7 is longer than top flange plate 6.
In a kind of embodiment of the utility model, the web 8 is perpendicular to bottom wing listrium 7.
In a kind of embodiment of the utility model, the web 8 is corrugated plating.
In a kind of embodiment of the utility model, the quantity of the web 8 is two.
In a kind of embodiment of the utility model, the bolt 9 is perpendicular to bottom wing listrium 7.
In a kind of embodiment of the utility model, the part that the bolt 9 is located at 7 lower section of bottom wing listrium is built in pre-
Concrete U-type slot 2 processed, the part part above bottom wing listrium 7 are built in prereinforced U_shaped concrete 2, are partially built in now
Pouring concrete 3.
In a kind of embodiment of the utility model, arragement direction of the bolt 9 on bottom wing listrium 7 is parallel to pre-
The flute length direction of concrete U-type slot 2 processed.
In a kind of embodiment of the utility model, the lightweight filler 10 can be foam packing material, mineral wool
Or one of air entrained concrete or a variety of.
In a kind of embodiment of the utility model, the lightweight filler 10 is foam packing material.
In a kind of embodiment of the utility model, the vertical muscle 11 is partially built in prefabricated with closed stirrup 12
Concrete U-type slot 2 is partially built in cast-in-place concrete flange plate 4；The perforated rebar 14 is built in cast-in-place concrete flange plate
4。
In a kind of embodiment of the utility model, the closed stirrup 12 is round rectangle；The vertical muscle 11
Quantity is that four and four vertical muscle 11 are located at the interior angle of closed stirrup 12.
In a kind of embodiment of the utility model, the length of the perforated rebar 14 is longer than top flange plate 6.
In a kind of embodiment of the utility model, the shear connector 13 is single row of holes steel plate shear connector.
The utility model provides a kind of construction method of above-mentioned assembled partial precast shape steel-concrete combined beam, institute
Stating method is to bind vertical muscle 11 with closed stirrup 12, forming portion steel splitting tendons skeleton 5, by part framework of steel reinforcement 5 by setting
Meter distance is placed in the template made according to prereinforced U_shaped concrete 2；Web 8 is welded in top flange plate 6 and bottom wing listrium 7
Between, the light filling packing material 10 between web 8 welds shear connector 13, in bottom wing listrium above top flange plate 6
Bolt 9 is arranged after 7 punching two ends, obtains fashioned iron 1, fashioned iron 1 is placed in by designed distance and is made according to prereinforced U_shaped concrete 2
Template in；Concreting is completed into pre-erection in the template made according to prereinforced U_shaped concrete 2, is obtained prefabricated
Part；Prefabricated component is transported to construction site, prefabricated component is put into and is made according to cast-in-place concrete 3 and cast-in-place concrete flange plate 4
In the template of work, perforated rebar 14 is inserted into shear connector 13, by concreting according to cast-in-place concrete 3 and now
In the template that pouring concrete flange plate 4 makes, obtain completing part.
The utility model provides application of the above-mentioned assembled partial precast shape steel-concrete combined beam in terms of building.
The utility model has the advantages that
(1) the prefabricated shape steel-concrete combined beam of the utility model had both combined the (carrying of cast-type fashioned iron-beams of concrete
Power is strong, ductility is high, anti-seismic performance is good) with precast concrete beam (easy for construction, construction speed is fast, saves labour) the advantages of,
Existing partial precast steel-concrete composite beam pre-erection is evaded well again and cast-in-place two parts bonds bad, shearing resistance
Defect weak, overall performance is weaker is suitable for industrialized production, meets the trend of current building industrialization；
(2) when the span of the prefabricated shape steel-concrete combined beam of the utility model is 2500mm, the size in T-type section is
When 200mm × 300mm × 800mm × 100mm, limit bending bearing capacity is up to 218.5kNm or so, and weight only has
About 642.6kg, performance are splendid；
(3) the prefabricated shape steel-concrete combined beam of the utility model has given full play to the property of two kinds of materials of steel and concrete
Can, fashioned iron is wrapped in concrete, to reduce a possibility that lateral buckling occurs for fashioned iron and increase the bearing capacity of combination beam
And ductility, achieve the purpose that reduce combination depth of beam；
(4) the prefabricated shape steel-concrete combined beam of the utility model using bolt-connected steel, precast concrete and shows
Pouring concrete, to enhance the bonding at three interface, also, the prefabricated shape steel-concrete combined beam of the utility model is in top flange
It is connected with shear connector above plate, to increase the bonding at two interfaces of precast concrete and cast-in-place concrete, guarantees two
Concrete is divided to work together, it is ensured that the normal use and bearing capacity of combination beam；
(5) the vertical muscle and closed stirrup that the prefabricated shape steel-concrete combined beam of the utility model uses are through prefabricated
Concrete and cast-in-place concrete guarantee two parts to increase the bonding at two interfaces of precast concrete and cast-in-place concrete
Concrete works together, it is ensured that the normal use and bearing capacity of combination beam, meanwhile, the utility model prefabrication type steel-concrete
Presstressed reinforcing steel can be used in the vertical muscle of combination beam, to be applied to longspan structure；
(6) the prefabricated shape steel-concrete combined beam of the utility model is connected above top flange plate by shear connector
Perforated rebar resists longitudinal shear by perforated rebar and cast-in-place concrete flange plate jointly, greatly improves the carrying of combination beam
Ability and ductility, meanwhile, perforated rebar can be used as the steel bar stress of concrete flange plate；
(7) the optional lightweight concrete in cast-in-place part of the prefabricated shape steel-concrete combined beam of the utility model, such as glass
Pumice concrete is cast, and is further mitigated dead load and is not influenced its structural behaviour；
(8) web that the prefabricated shape steel-concrete combined beam of the utility model uses is corrugated plating, and shearing strength is larger,
Also, the prefabricated shape steel-concrete combined beam of the utility model can between web light filling packing material, can not influence
Mitigate self weight under the premise of structural behaviour；
(9) stress as suffered by top flange plate is smaller, and the prefabricated shape steel-concrete combined beam of the utility model can be by fashioned iron
Flange plate up and down carry out asymmetrical design, so that bottom wing listrium is longer than top flange plate, to give full play to material property, save at
This；
(10) the prefabricated part of the prefabricated shape steel-concrete combined beam of the utility model is U-shaped, at the scene casting concrete
When, it can replace template, and facilitate construction and reduces cost, meanwhile, the prefabricated shape steel-concrete combined beam of the utility model is being applied
Work scene can by it is cast-in-place directly fashioned iron is connect with concrete it is integral.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the utility model assembled partial precast shape steel-concrete combined beam；
Fig. 2 is the cross-sectional view of the utility model assembled partial precast shape steel-concrete combined beam；
Wherein, 1 fashioned iron, 2 prereinforced U_shaped concretes, 3 cast-in-place concretes, 4 cast-in-place concrete flange plates, 5 frameworks of steel reinforcement, 6
Top flange plate, 7 bottom wing listriums, 8 webs, 9 bolts, 10 lightweight fillers, 11 vertical muscle, 12 closed stirrups, 13 shear connections
Part and 14 perforated rebars.
Specific embodiment
The technical solution of utility model is described in detail with reference to the accompanying drawing.
In order to have clearer understanding to the technical solution of the utility model, purpose and effect, now in conjunction with attached drawing and reality
Example is applied the utility model is further elaborated:
Glass pumice concrete involved in following embodiments is recorded in the patent application of Publication No. CN108585682A
In text, every 1m3Contain glass pumice 400kg~500kg, sand 700kg~750kg, gel rubber material in the concrete
445kg~555kg, water 160kg~200kg and water-reducing agent 4.8kg.
Detection method involved in following embodiments is as follows:
Bending bearing capacity detection method:
Anti-bending bearing capacity experimental study is carried out to Beams test specimen, using two o'clock asymmetrical load mode, using 50t grades
Other hydraulic jack is loaded, and load is transferred at two load(ing) points of test specimen by distribution beam, is pacified at jack
Fill force snesor, range 100t, for measuring the payload values that beam is subject to；
Test use hierarchical loading, beam cracking before, every grade of increases 5kN of load, combination beam crack after until failing load
It is changed to every grade of 10kN, every grade of load duration is about 10min, and load terminates when concrete flange plate crushes；
Displacement meter is arranged at span centre and load(ing) point to measure beam in the displacement of simple bending section, foil gauge is arranged in
On test specimen span centre and the fashioned iron in load(ing) point section, vertical muscle and concrete；
Wherein, spaning middle section and load(ing) point section fashioned iron five foil gauges of top flange plate upper surface equidistant placement,
In bottom wing listrium lower surface five foil gauges of equidistant placement of the fashioned iron in spaning middle section and load(ing) point section, in spaning middle section and add
Two five foil gauges of lateral edge short transverse equidistant placement of ripple side plate of the fashioned iron in loading point section are cut in spaning middle section and load(ing) point
The tension in face indulges muscle and the vertical muscle that is pressurized arranges a foil gauge, meanwhile, in the pre-erection of spaning middle section and load(ing) point section
The two sides of concrete five foil gauges of equal equidistant placement, 3 foil gauges of bottom edge equidistant placement, in the cast-in-place coagulation of spaning middle section
Five foil gauges of equidistant placement at the top of the flange plate of soil, two sides one foil gauge of each equidistant placement.
Gravimetric analysis sensing method:
The weight of combination beam is calculated using estimation mode, i.e., first calculates the weight of each section material multiplied by volume with bulk density,
The weight of each section material is added up again and obtains the total weight of combination beam；
Wherein, the bulk density of normal concrete is 2400kg/m3, the bulk density of glass pumice concrete is 1800kg/m3, steel
Bulk density be 7850kg/m3, the bulk density of foam packing material is 18kg/m3。
Embodiment 1: the assembled partial precast shape steel-concrete combined beam of the utility model
Such as Fig. 1-2, assembled partial precast shape steel-concrete combined beam provided by the utility model contains fashioned iron 1, prefabricated
Concrete U-type slot 2, the cast-in-place concrete 3 being filled in inside prereinforced U_shaped concrete 2, showing above cast-in-place concrete 3
Pouring concrete flange plate 4, and positioned at the outside of fashioned iron 1 and part be built in prereinforced U_shaped concrete 2, be partially built in it is cast-in-place
The framework of steel reinforcement 5 of concrete flange plate 4；
The fashioned iron 1 containing top flange plate 6, bottom wing listrium 7, two pieces for connecting top flange plate 6 and bottom wing listrium 7 or
Two pieces or more of web 8, and positioned at bottom wing listrium 7 close to the both ends of framework of steel reinforcement 5 and through the bolt 9 of bottom wing listrium 7；Institute
It states bottom wing listrium 7 and is embedded to 2 bottom of prereinforced U_shaped concrete；Lightweight filler 10 is filled between the web 8；
The framework of steel reinforcement 5 is parallel to the vertical muscle in 2 flute length direction of prereinforced U_shaped concrete containing four or four or more
11, several perpendicular to bottom wing listrium 7 and around the closed stirrup 12 of vertical muscle 11 and several U-shaped perpendicular to precast concrete
2 flute length direction of slot and the perforated rebar 14 that 6 top of top flange plate is connected to by shear connector 13.
As further preferred, the prereinforced U_shaped concrete 2, cast-in-place concrete 3 and cast-in-place concrete flange plate
4 material can be one of glass pumice concrete, haydite concrete or normal concrete or a variety of.
As further preferably, the material of the prereinforced U_shaped concrete 2 is normal concrete；The cast-in-place coagulation
The material of soil 3 and cast-in-place concrete flange plate 4 is glass pumice concrete.
As further preferably, the cast-in-place concrete flange plate 4 is parallel to bottom wing listrium 7.
As further preferably, the top flange plate 6 is parallel to bottom wing listrium 7.
As further preferably, the length of the bottom wing listrium 7 is longer than top flange plate 6.
As further preferably, the web 8 is perpendicular to bottom wing listrium 7.
As further preferably, the web 8 is corrugated plating.
As further preferably, the quantity of the web 8 is two.
As further preferably, the bolt 9 is perpendicular to bottom wing listrium 7.
As further preferably, it is U-shaped that the part that the bolt 9 is located at 7 lower section of bottom wing listrium is built in precast concrete
Slot 2, the part part above bottom wing listrium 7 are built in prereinforced U_shaped concrete 2, are partially built in cast-in-place concrete 3.
As further preferably, it is U-shaped that arragement direction of the bolt 9 on bottom wing listrium 7 is parallel to precast concrete
The flute length direction of slot 2.
As further preferably, the lightweight filler 10 can be foam packing material, mineral wool or air entrained concrete
One of or it is a variety of.
As further preferably, the lightweight filler 10 is foam packing material.
As further preferably, the vertical muscle 11 is partially built in prereinforced U_shaped concrete with closed stirrup 12
2, partially it is built in cast-in-place concrete flange plate 4；The perforated rebar 14 is built in cast-in-place concrete flange plate 4.
As further preferably, the closed stirrup 12 is round rectangle；The quantity of the vertical muscle 11 be four and
Four vertical muscle 11 are located at the interior angle of closed stirrup 12.
As further preferably, the length of the perforated rebar 14 is longer than top flange plate 6.
As further preferably, the shear connector 13 is single row of holes steel plate shear connector.
Embodiment 2: the construction method of the utility model assembled partial precast shape steel-concrete combined beam
Specific step is as follows:
(1) vertical muscle 11 is bound with closed stirrup 12, forming portion steel splitting tendons skeleton 5 presses part framework of steel reinforcement 5
Designed distance is placed in the template made according to prereinforced U_shaped concrete 2；
(2) web 8 is welded between top flange plate 6 and bottom wing listrium 7, the light filling packing material between web 8
10, shear connector 13 is welded above top flange plate 6, and bolt 9 is arranged after 7 punching two ends of bottom wing listrium, obtains fashioned iron 1,
Fashioned iron 1 is placed in the template made according to prereinforced U_shaped concrete 2 by designed distance；
(3) concreting is completed into pre-erection in the template made according to prereinforced U_shaped concrete 2, obtained pre-
Product；
(4) prefabricated component is transported to construction site, prefabricated component is put into according to cast-in-place concrete 3 and the cast-in-place concrete wing
In the template that listrium 4 makes, perforated rebar 14 is inserted into shear connector 13, by concreting according to cast-in-place concrete
3 and cast-in-place concrete flange plate 4 make template in, obtain completing part.
Embodiment 3: the detection of the utility model assembled partial precast shape steel-concrete combined beam
Specific step is as follows:
The size for choosing top flange plate is 80 × 6, and the size of bottom wing listrium is 100 × 8, and the height of ripple drafting board is
160mm, specification are W94 × 20 × 2, and the size of single row of holes steel plate shear connector is 25 × 4, hole diameter 15mm, hole
Spacing is 2 times (i.e. 30mm) of hole diameter, and steel plate is all made of Q345, and the diameter of vertical muscle is 18mm, using HRB335 reinforcing bar,
The diameter of closed stirrup is 6mm, using HPB300 reinforcing bar, and the diameter of perforated rebar is 8mm, using HRB335 reinforcing bar, bolt
Using the high-strength bolt of 10.9 grades of M12 models, precast concrete uses C40 normal concrete, and cast-in-place concrete is light using glass
Stone concrete.
By embodiment 1-2, the novel partial precast combination beam of the utility model is prepared, the span of combination beam is
2500mm, the total cross-section of T-type section combination beam is having a size of 200mm × 300mm × 800mm × 100mm.
Its limit bending bearing capacity and weight, testing result are measured according to above-mentioned anti-bending bearing capacity detection method are as follows:
Limit bending bearing capacity is 218.5kNm, weight is about 642.6kg.
Embodiment 4: the construction method and detection of cast-type shape steel-concrete combined beam
Specific step is as follows:
Select material same as Example 3；
Vertical muscle is bound, forming portion steel splitting tendons skeleton with closed stirrup, part framework of steel reinforcement is pressed into designed distance
It is placed in the template of T-type beam；Web is welded between top flange plate and bottom wing listrium, light filling fills material between web
Material, welds shear connector above top flange plate, arranges bolt after the punching of lower flange board ends, fashioned iron is obtained, by fashioned iron
It is placed in by designed distance in the template of T-type beam；Perforated rebar is inserted into shear connector, then by concreting in T-type beam
Template in, obtain cast-type shape steel-concrete combined beam.
Embodiment 4 and the difference of embodiment 3 are: concrete parts are all cast-in-place and concrete uses C40 common entirely
Concrete.
By the embodiment above, cast-type shape steel-concrete combined beam is prepared, the span of combination beam is 2500mm, T
The total cross-section of type section combination beam is having a size of 200mm × 300mm × 800mm × 100mm.
Its limit bending bearing capacity and weight, testing result are measured according to above-mentioned anti-bending bearing capacity detection method are as follows:
Limit bending bearing capacity is 232.7kNm, weight is about 784.6kg.
From embodiment 3-4 it can be seen that the bending bearing capacity of the utility model combination beam and common complete cast-in-place combination beam
Anti-bending bearing capacity be not much different, weight reduction, and be experimentally observed two concrete interfaces without sliding, it was demonstrated that this is practical
Two parts concrete of the novel compositions beam of novel proposition can cooperate, and can safely and effectively be applied to Practical Project, and compare
Common complete cast-in-place transfer structure for SRC beams has the advantages that more.
Claims (9)
1. a kind of assembled partial precast shape steel-concrete combined beam, which is characterized in that the combination beam contains fashioned iron (1), pre-
Concrete U-type slot (2) processed is filled in the internal cast-in-place concrete (3) of prereinforced U_shaped concrete (2), is located at cast-in-place concrete
(3) the cast-in-place concrete flange plate (4) above, and be located at fashioned iron (1) outside and be partially built in prereinforced U_shaped concrete
(2), partially it is built in the framework of steel reinforcement (5) of cast-in-place concrete flange plate (4)；
The fashioned iron (1) containing top flange plate (6), bottom wing listrium (7), for connecting top flange plate (6) and bottom wing listrium (7)
Two or more than two web (8), and be located at bottom wing listrium (7) close to the both ends of framework of steel reinforcement (5) and run through lower flange
The bolt (9) of plate (7)；The bottom wing listrium (7) is embedded to prereinforced U_shaped concrete (2) bottom；It is filled between the web (8)
There are lightweight filler (10)；
The framework of steel reinforcement (5) is parallel to the vertical muscle in prereinforced U_shaped concrete (2) flute length direction containing four or four or more
(11), several perpendicular to bottom wing listrium (7) and around the closed stirrup of vertical muscle (11) (12) and several perpendicular to prefabricated
Concrete U-type slot (2) flute length direction and the perforated rebar above top flange plate (6) is connected to by shear connector (13)
(14)。
2. a kind of assembled partial precast shape steel-concrete combined beam as described in claim 1, which is characterized in that described pre-
The material of concrete U-type slot (2) processed, cast-in-place concrete (3) and cast-in-place concrete flange plate (4) can be glass pumice coagulation
One of soil, haydite concrete or normal concrete are a variety of.
3. a kind of assembled partial precast shape steel-concrete combined beam as described in claim 1, which is characterized in that described pre-
The material of concrete U-type slot (2) processed is normal concrete；The cast-in-place concrete (3) and cast-in-place concrete flange plate (4)
Material is glass pumice concrete.
4. a kind of assembled partial precast shape steel-concrete combined beam as described in claim 1, which is characterized in that described existing
Pouring concrete flange plate (4) is parallel to bottom wing listrium (7).
5. a kind of assembled partial precast shape steel-concrete combined beam as described in claim 1, which is characterized in that the spiral shell
The part that bolt (9) is located at below bottom wing listrium (7) is built in prereinforced U_shaped concrete (2), is located above bottom wing listrium (7)
Part is partially built in prereinforced U_shaped concrete (2), is partially built in cast-in-place concrete (3).
6. a kind of assembled partial precast shape steel-concrete combined beam as described in claim 1, which is characterized in that the abdomen
Plate (8) is corrugated plating.
7. a kind of assembled partial precast shape steel-concrete combined beam as described in claim 1, which is characterized in that described vertical
Muscle (11) and closed stirrup (12) are partially built in prereinforced U_shaped concrete (2), are partially built in the cast-in-place concrete edge of a wing
Plate (4)；The perforated rebar (14) is built in cast-in-place concrete flange plate (4).
8. a kind of assembled partial precast shape steel-concrete combined beam as described in claim 1, which is characterized in that the envelope
Enclosed stirrup (12) is round rectangle；The quantity of the vertical muscle (11) is that four and four vertical muscle (11) are located at closed hoop
At the interior angle of muscle (12).
9. a kind of assembled partial precast shape steel-concrete combined beam as described in claim 1, which is characterized in that described anti-
Cutting connector (13) is single row of holes steel plate shear connector.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821917987.3U CN209261052U (en) | 2018-11-21 | 2018-11-21 | A kind of assembled partial precast shape steel-concrete combined beam |
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| CN201821917987.3U CN209261052U (en) | 2018-11-21 | 2018-11-21 | A kind of assembled partial precast shape steel-concrete combined beam |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114016532A (en) * | 2021-10-19 | 2022-02-08 | 四川能投建工集团有限公司第二分公司 | Assembly type steel reinforced concrete strip foundation and assembly method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114016532A (en) * | 2021-10-19 | 2022-02-08 | 四川能投建工集团有限公司第二分公司 | Assembly type steel reinforced concrete strip foundation and assembly method thereof |
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