CN209179321U - A kind of " T-type " partial precast shape steel-concrete combined beam - Google Patents
A kind of " T-type " partial precast shape steel-concrete combined beam Download PDFInfo
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- CN209179321U CN209179321U CN201821917976.5U CN201821917976U CN209179321U CN 209179321 U CN209179321 U CN 209179321U CN 201821917976 U CN201821917976 U CN 201821917976U CN 209179321 U CN209179321 U CN 209179321U
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Abstract
The utility model relates to a kind of " T-type " partial precast shape steel-concrete combined beams, belong to technical field of buildings and technical field of structural engineering.The utility model proposes partial precast combination beam contain fashioned iron, prefabricated rectangular body concrete, cast-in-place rectangular body concrete above prefabricated rectangular body concrete and outside fashioned iron and part is built in prefabricated rectangular body concrete, part is built in the framework of steel reinforcement of cast-in-place rectangular body concrete, 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
Originally it is related to a kind of " T-type " partial precast shape steel-concrete combined beam, belongs to technical field of buildings and Structural Engineering
Technical field.
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, originally providing a kind of " T-type " partial precast shape steel-concrete combined beam, both combined
Fashioned iron-beams of concrete (bearing capacity is strong, ductility is high, anti-seismic performance is good) and precast concrete beam (it is easy for construction, construction speed is fast,
Save labour) the advantages of, and evaded existing partial precast steel-concrete composite beam pre-erection and two cast-in-place well
Divide the defect that bonding is bad, shearing resistance is weak, overall performance is weaker, is suitable for industrialized production, meets current building industrialization
Trend.
The technical solution of the utility model is as follows:
The utility model provides a kind of " T-type " partial precast shape steel-concrete combined beam, and the combination beam includes fashioned iron
1, prefabricated rectangular body concrete 2, the cast-in-place rectangular body concrete 3 above prefabricated rectangular body concrete 2 and be located at fashioned iron 1
The framework of steel reinforcement 4 that external and part is built in prefabricated rectangular body concrete 2, is partially built in cast-in-place rectangular body concrete 3；
Several webs 7 of the fashioned iron 1 containing top flange plate 5, bottom wing listrium 6, connection top flange plate 5 and bottom wing listrium 6,
Positioned at bottom wing listrium 6 close to the peg 8 at the both ends of framework of steel reinforcement 4；
The framework of steel reinforcement 4 is parallel to the vertical muscle of cast-in-place 3 length direction of rectangular body concrete containing four or four or more
9, several perpendicular to bottom wing listrium 6 and around the closed stirrup 10 of vertical muscle 9 and several perpendicular to cast-in-place cuboid coagulation
Native 3 length directions and the perforated rebar 11 that 5 top of top flange plate is connected to by shear connector 12；
The prefabricated rectangular body concrete 2 two sides parallel with web 7 bottom with cast-in-place rectangular body concrete 3 respectively
Face forms angle 13；Angle steel 15 is connected with by being built in the built-in fitting 14 of prefabricated rectangular body concrete 2 at the angle 13；Institute
It is close to prefabricated rectangular body concrete 2 side parallel with web 7 and cast-in-place cuboid coagulation respectively in two sides for stating angle steel 15
The bottom surface of soil 3.
In a kind of embodiment of the utility model, the prefabricated rectangular body concrete 2 and cast-in-place cuboid coagulation
The material of soil 3 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 prefabricated rectangular body concrete 2 is normal concrete；
The material of the cast-in-place rectangular body concrete 3 is glass pumice coagulation earth concrete.
In a kind of embodiment of the utility model, the top and bottom of the prefabricated rectangular body concrete 2 are parallel
In bottom wing listrium 6.
In a kind of embodiment of the utility model, the top and bottom of the cast-in-place rectangular body concrete 3 are parallel
In bottom wing listrium 6.
In a kind of embodiment of the utility model, the top flange plate 5 is parallel to bottom wing listrium 6.
In a kind of embodiment of the utility model, the length of the bottom wing listrium 6 is longer than top flange plate 5.
In a kind of embodiment of the utility model, the web 7 is perpendicular to bottom wing listrium 6.
In a kind of embodiment of the utility model, the web 7 is corrugated plating.
In a kind of embodiment of the utility model, the quantity of the web 7 is one and the web 7 can will be prefabricated
Rectangular body concrete 2, cast-in-place rectangular body concrete 3, top flange plate 5, bottom wing listrium 6, closed stirrup 10 and perforated rebar
11 are divided into two.
In a kind of embodiment of the utility model, the peg 8 is perpendicular to bottom wing listrium 6.
In a kind of embodiment of the utility model, the peg 8 is welded in bottom wing listrium 6 and is built in prefabricated rectangular
Body concrete 2.
In a kind of embodiment of the utility model, arragement direction of the peg 8 on bottom wing listrium 6 is parallel to existing
Pour the length direction of rectangular body concrete 3.
In a kind of embodiment of the utility model, the vertical muscle 9 is partially built in prefabricated with closed stirrup 10
Rectangular body concrete 2 is partially built in cast-in-place rectangular body concrete 3；The perforated rebar 11 is built in cast-in-place cuboid coagulation
Soil 3.
In a kind of embodiment of the utility model, the closed stirrup 10 is round rectangle；The number of the vertical muscle 9
Amount is that four and four vertical muscle 9 are located at the interior angle of closed stirrup 10.
In a kind of embodiment of the utility model, the length of the perforated rebar 11 is longer than top flange plate 5.
In a kind of embodiment of the utility model, the shear connector 12 is dovetail groove shear connector.
In a kind of embodiment of the utility model, the angle 13 is 90 °.
The utility model provides a kind of construction method of above-mentioned " T-type " partial precast shape steel-concrete combined beam, described
Method be vertical muscle 9 is bound with closed stirrup 10, forming portion steel splitting tendons skeleton 4, by part framework of steel reinforcement 4 by design away from
From being placed in the template made according to prefabricated rectangular body concrete 2；By web 7 be welded in top flange plate 5 and bottom wing listrium 6 it
Between, shear connector 12 is welded above top flange plate 5, the weld stud 8 below bottom wing listrium 6 obtains fashioned iron 1, by fashioned iron 1
It is placed in the template made according to prefabricated rectangular body concrete 2 by designed distance；By built-in fitting 14 by designed distance be placed according to
In the template that prefabricated rectangular body concrete 2 makes, by concreting in the template made according to prefabricated rectangular body concrete 2
In, angle steel 15 is soldered at built-in fitting 14, prefabricated component is obtained；Prefabricated component is transported to construction site, by prefabricated component be put by
In the template made according to cast-in-place rectangular body concrete 3, perforated rebar 11 is inserted into shear connector 12, it will be by concreting
In the template made according to cast-in-place rectangular body concrete 3, obtain completing part.
The utility model provides application of above-mentioned " T-type " the partial precast shape steel-concrete combined beam in terms of building.
The utility model has the advantages that
(1) the partial precast shape steel-concrete combined beam of the utility model had both combined cast-type 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 speed is fast, saves labour)
Advantage, but well evaded existing partial precast steel-concrete composite beam pre-erection and cast-in-place two parts bonding it is bad, anti-
Defect weak, that overall performance is weaker is sheared, is suitable for industrialized production, meets the trend of current building industrialization；
(2) when the size that the span of the utility model partial precast shape steel-concrete combined beam is 2500mm, T-type section
When for 200mm × 300mm × 800mm × 100mm, limit bending bearing capacity is up to 208.4kNm or so, and weight is only
There is 658.9kg, performance is splendid；
(3) the partial precast shape steel-concrete combined beam of the utility model has given full play to two kinds of materials of steel and concrete
Performance, fashioned iron is wrapped in concrete, to reduce a possibility that lateral buckling occurs for fashioned iron and increase the carrying of combination beam
Ability and ductility achieve the purpose that reduce combination depth of beam；
(4) the partial precast shape steel-concrete combined beam of the utility model using peg and is connected with perforated rebar
Shear connector guarantees the common work of two parts concrete to increase the bonding at two interfaces of precast concrete and cast-in-place concrete
Make, it is ensured that the normal use and bearing capacity of combination beam；
(5) the vertical muscle and closed stirrup that the partial precast shape steel-concrete combined beam of the utility model uses run through
Precast concrete and cast-in-place concrete guarantee two to increase the bonding at two interfaces of precast concrete and cast-in-place concrete
Part concrete works together, it is ensured that the normal use and bearing capacity of combination beam, meanwhile, the prefabricated fashioned iron-of the utility model is mixed
Presstressed reinforcing steel can be used in the vertical muscle of solidifying soil combination beam, to be applied to longspan structure；
(6) the partial precast shape steel-concrete combined beam of the utility model passes through shear connector above top flange plate
It is connected to perforated rebar, longitudinal shear is resisted by perforated rebar and pouring concrete flange plate jointly, greatly improves holding for combination beam
Loading capability and ductility, meanwhile, perforated rebar can be used as the steel bar stress of concrete flange plate；
(7) the partial precast shape steel-concrete combined beam of the utility model is on prefabricated rectangular body concrete by pre-buried
Part has welded angle steel using the template as cast-in-place concrete, meanwhile, it plays a supportive role to flange plate, has both facilitated construction, it can also group
It closes beam and improves bearing capacity；
(8) the optional lightweight concrete in cast-in-place part of the utility model partial precast shape steel-concrete combined beam, such as
Glass pumice concrete is cast, and is further mitigated dead load and is not influenced its structural behaviour；
(9) web that the partial precast shape steel-concrete combined beam of the utility model uses be corrugated plating, shearing strength compared with
Greatly, therefore, the optional lightweight concrete in cast-in-place part further mitigates structure certainly if glass pumice concrete is cast
Again and its structural behaviour is not influenced, particularly suitable for skyscraper；
(10) stress as suffered by top flange plate is smaller, and the partial precast shape steel-concrete combined beam of the utility model can
The flange plate up and down of fashioned iron is subjected to asymmetrical design, bottom wing listrium is made to be longer than top flange plate, to give full play to material property, section
About cost.
Detailed description of the invention
Fig. 1 is the schematic perspective view of this " T-type " partial precast shape steel-concrete combined beam；
Fig. 2 is the cross-sectional view of this " T-type " partial precast shape steel-concrete combined beam；
Wherein, 1 fashioned iron, 2 prefabricated rectangular body concretes, 3 cast-in-place rectangular body concretes, 4 frameworks of steel reinforcement, 5 top flange plates, 6
It is bottom wing listrium, 7 webs, 8 pegs, 9 vertical muscle, 10 closed stirrups, 11 perforated rebars, 12 shear connectors, 13 angles, 14 pre-buried
Part and 15 angle steel.
Specific embodiment
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。
Embodiment 1: " T-type " partial precast shape steel-concrete combined beam of the utility model
Such as Fig. 1-2, " T-type " partial precast shape steel-concrete combined beam provided by the utility model contains fashioned iron 1, prefabricated
Rectangular body concrete 2, the cast-in-place rectangular body concrete 3 above prefabricated rectangular body concrete 2 and be located at the outside of fashioned iron 1 and
The framework of steel reinforcement 4 that part is built in prefabricated rectangular body concrete 2, is partially built in cast-in-place rectangular body concrete 3；
Several webs 7 of the fashioned iron 1 containing top flange plate 5, bottom wing listrium 6, connection top flange plate 5 and bottom wing listrium 6,
Positioned at bottom wing listrium 6 close to the peg 8 at the both ends of framework of steel reinforcement 4；
The framework of steel reinforcement 4 is parallel to the vertical muscle of cast-in-place 3 length direction of rectangular body concrete containing four or four or more
9, several perpendicular to bottom wing listrium 6 and around the closed stirrup 10 of vertical muscle 9 and several perpendicular to cast-in-place cuboid coagulation
Native 3 length directions and the perforated rebar 11 that 5 top of top flange plate is connected to by shear connector 12；
The prefabricated rectangular body concrete 2 two sides parallel with web 7 bottom with cast-in-place rectangular body concrete 3 respectively
Face forms angle 13；Angle steel 15 is connected with by being built in the built-in fitting 14 of prefabricated rectangular body concrete 2 at the angle 13；Institute
It is close to prefabricated rectangular body concrete 2 side parallel with web 7 and cast-in-place cuboid coagulation respectively in two sides for stating angle steel 15
The bottom surface of soil 3.
As further preferably, the material of the prefabricated rectangular body concrete 2 and cast-in-place rectangular body concrete 3 can be
One of glass pumice concrete, haydite concrete or normal concrete are a variety of.
As further preferably, the material of the prefabricated rectangular body concrete 2 is normal concrete；It is described cast-in-place rectangular
The material of body concrete 3 is glass pumice coagulation earth concrete.
As further preferably, the top and bottom of the prefabricated rectangular body concrete 2 are each parallel to bottom wing listrium 6.
As further preferably, the top and bottom of the cast-in-place rectangular body concrete 3 are each parallel to bottom wing listrium 6.
As further preferably, the top flange plate 5 is parallel to bottom wing listrium 6.
As further preferably, the length of the bottom wing listrium 6 is longer than top flange plate 5.
As further preferably, the web 7 is perpendicular to bottom wing listrium 6.
As further preferably, the web 7 is corrugated plating.
As further preferably, the quantity of the web 7 is one and the web 7 can be by prefabricated rectangular body concrete
2, cast-in-place rectangular body concrete 3, top flange plate 5, bottom wing listrium 6, closed stirrup 10 and perforated rebar 11 are divided into two.
As further preferably, the peg 8 is perpendicular to bottom wing listrium 6.
As further preferably, the peg 8 is welded in bottom wing listrium 6 and is built in prefabricated rectangular body concrete 2.
As further preferably, arragement direction of the peg 8 on bottom wing listrium 6 is parallel to cast-in-place cuboid coagulation
The length direction of soil 3.
As further preferably, the vertical muscle 9 is partially built in prefabricated rectangular body concrete with closed stirrup 10
2, partially it is built in cast-in-place rectangular body concrete 3；The perforated rebar 11 is built in cast-in-place rectangular body concrete 3.
As further preferably, the closed stirrup 10 is round rectangle；The quantity of the vertical muscle 9 is four and four
Root is indulged muscle 9 and is located at the interior angle of closed stirrup 10.
As further preferably, the length of the perforated rebar 11 is longer than top flange plate 5.
As further preferably, the shear connector 12 is dovetail groove shear connector.
As further preferably, the angle 13 is 90 °.
The utility model provides a kind of construction method of above-mentioned " T-type " partial precast shape steel-concrete combined beam, described
Method be vertical muscle 9 is bound with closed stirrup 10, forming portion steel splitting tendons skeleton 4, by part framework of steel reinforcement 4 by design away from
From being placed in the template made according to prefabricated rectangular body concrete 2；By web 7 be welded in top flange plate 5 and bottom wing listrium 6 it
Between, shear connector 12 is welded above top flange plate 5, the weld stud 8 below bottom wing listrium 6 obtains fashioned iron 1, by fashioned iron 1
It is placed in the template made according to prefabricated rectangular body concrete 2 by designed distance；By built-in fitting 14 by designed distance be placed according to
In the template that prefabricated rectangular body concrete 2 makes, by concreting in the template made according to prefabricated rectangular body concrete 2
In, angle steel 15 is soldered at built-in fitting 14, prefabricated component is obtained；Prefabricated component is transported to construction site, by prefabricated component be put by
In the template made according to cast-in-place rectangular body concrete 3, perforated rebar 11 is inserted into shear connector 12, it will be by concreting
In the template made according to cast-in-place rectangular body concrete 3, obtain completing part.
Embodiment 2: the construction method of the utility model " T-type " partial precast shape steel-concrete combined beam
Specific step is as follows:
(1) vertical muscle 9 is bound with closed stirrup 10, forming portion steel splitting tendons skeleton 4 presses part framework of steel reinforcement 4
Designed distance is placed in the template made according to prefabricated rectangular body concrete 2；
(2) web 7 is welded between top flange plate 5 and bottom wing listrium 6, welds shear connections above top flange plate 5
Part 12, the weld stud 8 below bottom wing listrium 6, obtains fashioned iron 1, and fashioned iron 1 is placed in by designed distance and is mixed according to prefabricated cuboid
In the template of solidifying 2 production of soil；
(3) built-in fitting 14 is placed in the template made according to prefabricated rectangular body concrete 2 by designed distance, by concrete
It pours in the template made according to prefabricated rectangular body concrete 2, angle steel 15 is soldered at built-in fitting 14, prefabricated component is obtained；
(4) prefabricated component is transported to construction site, prefabricated component is put into the template made according to cast-in-place rectangular body concrete 3
In, perforated rebar 11 is inserted into shear connector 12, by by concreting in making according to cast-in-place rectangular body concrete 3
In template, obtain completing part.
Embodiment 3: the detection of the utility model " T-type " partial precast shape steel-concrete combined beam
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 dovetail groove steel plate shear connector is 25 × 4, and steel plate is all made of Q345, indulges muscle
Diameter be 18mm, using HRB335 reinforcing bar, the diameter of closed stirrup is 6mm, using HPB300 reinforcing bar, perforated rebar
Diameter is 8mm, using HRB335 reinforcing bar, and the diameter of peg is 12mm, built-in fitting having a size of 15 × 2, angle steel having a size of 25 × 3,
Precast concrete uses C40 normal concrete, and cast-in-place concrete uses glass pumice concrete.
By embodiment 1-2, the novel partial precast shape steel-concrete combined beam of the utility model, combination beam is prepared
Span be 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 208.4kNm, weight 658.9kg.
Embodiment 4: the construction method and detection of cast-type " T-type " combination 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, shearing resistance is welded above top flange plate and is connected
Fitting, the weld stud below bottom wing listrium, obtains fashioned iron, and fashioned iron is placed in the template of T-type beam by designed distance, will be penetrated through
Reinforcing bar is inserted into shear connector, then by concreting in the template of T-type beam, obtains cast-type " T-type " combination 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 " T-type " combination beam is prepared, the span of combination beam is 2500mm, T-type section
The total cross-section of 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 221.3kNm, weight 778.9kg.
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, and be experimentally observed two concrete interfaces without sliding, it was demonstrated that the utility model proposes
Two parts concrete of novel compositions beam can cooperate, can safely and effectively be applied to Practical Project, and more complete than common
Cast-in-place transfer structure for SRC beams has the advantages that more.
Claims (9)
1. a kind of " T-type " partial precast shape steel-concrete combined beam, which is characterized in that the combination beam includes fashioned iron (1), pre-
It makes rectangular body concrete (2), the cast-in-place rectangular body concrete (3) being located above prefabricated rectangular body concrete (2) and is located at type
The reinforcing bar that steel (1) outside and part are built in prefabricated rectangular body concrete (2), are partially built in cast-in-place rectangular body concrete (3)
Skeleton (4)；
The fashioned iron (1) is several with bottom wing listrium (6) containing top flange plate (5), bottom wing listrium (6), connection top flange plate (5)
Web (7) is located at bottom wing listrium (6) close to the peg (8) at the both ends of framework of steel reinforcement (4)；
The framework of steel reinforcement (4) is parallel to the vertical muscle of cast-in-place rectangular body concrete (3) length direction containing four or four or more
(9), several perpendicular to bottom wing listrium (6) and around the closed stirrup of vertical muscle (9) (10) and several perpendicular to cast-in-place length
Cube concrete (3) length direction and the perforated rebar (11) above top flange plate (5) is connected to by shear connector (12)；
The prefabricated rectangular body concrete (2) two sides parallel with web (7) respectively with cast-in-place rectangular body concrete (3)
Bottom surface forms angle (13)；It is connected at the angle (13) by being built in the built-in fitting (14) of prefabricated rectangular body concrete (2)
There are angle steel (15)；It is close to prefabricated rectangular body concrete (2) side parallel with web (7) respectively in two sides of the angle steel (15)
And the bottom surface of cast-in-place rectangular body concrete (3).
2. one kind " T-type " partial precast shape steel-concrete combined beam as described in claim 1, which is characterized in that described prefabricated
The material of rectangular body concrete (2) and cast-in-place rectangular body concrete (3) can be glass pumice concrete, haydite concrete or general
One of logical concrete is a variety of.
3. one kind " T-type " partial precast shape steel-concrete combined beam as claimed in claim 1 or 2, which is characterized in that described
The material of prefabricated rectangular body concrete (2) is normal concrete；The material of the cast-in-place rectangular body concrete (3) is glass pumice
Concrete.
4. one kind " T-type " partial precast shape steel-concrete combined beam as described in claim 1, which is characterized in that the web
It (7) is corrugated plating.
5. one kind " T-type " partial precast shape steel-concrete combined beam as described in claim 1, which is characterized in that the web
(7) perpendicular to bottom wing listrium (6).
6. one kind " T-type " partial precast shape steel-concrete combined beam as described in claim 1, which is characterized in that the web
(7) quantity is one and the web (7) can be by prefabricated rectangular body concrete (2), cast-in-place rectangular body concrete (3), upper limb
Listrium (5), bottom wing listrium (6), closed stirrup (10) and perforated rebar (11) are divided into two.
7. one kind " T-type " partial precast shape steel-concrete combined beam as described in claim 1, which is characterized in that the peg
(8) it is welded in bottom wing listrium (6) and is built in prefabricated rectangular body concrete (2).
8. one kind " T-type " partial precast shape steel-concrete combined beam as described in claim 1, which is characterized in that the vertical muscle
(9) it is partially built in prefabricated rectangular body concrete (2) with closed stirrup (10), is partially built in cast-in-place rectangular body concrete
(3)；The perforated rebar (11) is built in cast-in-place rectangular body concrete (3).
9. one kind " T-type " partial precast shape steel-concrete combined beam as described in claim 1, which is characterized in that the closing
Formula stirrup (10) is round rectangle；The quantity of the vertical muscle (9) is that four and four vertical muscle (9) are located at closed stirrup
(10) at interior angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821917976.5U CN209179321U (en) | 2018-11-21 | 2018-11-21 | A kind of " T-type " partial precast shape steel-concrete combined beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821917976.5U CN209179321U (en) | 2018-11-21 | 2018-11-21 | A kind of " T-type " partial precast shape steel-concrete combined beam |
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| Publication Number | Publication Date |
|---|---|
| CN209179321U true CN209179321U (en) | 2019-07-30 |
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