CN107700667A - A kind of precast floor slab and girder steel lower flange connecting node - Google Patents
A kind of precast floor slab and girder steel lower flange connecting node Download PDFInfo
- Publication number
- CN107700667A CN107700667A CN201710880884.8A CN201710880884A CN107700667A CN 107700667 A CN107700667 A CN 107700667A CN 201710880884 A CN201710880884 A CN 201710880884A CN 107700667 A CN107700667 A CN 107700667A
- Authority
- CN
- China
- Prior art keywords
- floor slab
- precast floor
- lower flange
- hole
- connecting node
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
Invention provides a kind of precast floor slab and girder steel lower flange connecting node, including H profile steel beam, precast floor slab and cast-in-place concrete.The H profile steel beam includes top flange, web and lower flange.The precast floor slab is solid floor or cassette ceiling.The plate end of the precast floor slab is ridden upon on lower flange.Through hole is offered on the lower flange.On precast floor slab screw shell is embedded with the through hole correspondence position.Precast floor slab is fixed on H profile steel beam by fixing bolt through stretching precast floor slab upper surface after the through hole and screw shell.The connecting node reduces fire protection expense use, improves steel beam flange and Web Stability, good integrity, good mechanical properties, remarkable in economical benefits.
Description
Technical field
The present invention relates to building structure field, and in particular to the connection of precast floor slab and girder steel.
Background technology
Precast floor slab is the most frequently used floor form of assembling type steel structure house, and it has easy construction, quick and energy-conservation
The advantages such as environmental protection.
Precast floor slab is to ensure floor and the common stress of girder steel and the important means of compatible deformation with steel beam connecting joint.Pass
The connecting node mode of system is that floor is arranged in girder steel top flange, and girder steel total cross-section need to be prevented fires and anti-corrosion protection.If girder steel
Exposed, then flooring is unsightly.If flooring does furred ceiling processing, floor clear height is reduced, causes to use space waste.
The content of the invention
Present invention aim to address fire retardant anticorrosion high cost in the prior art, girder steel stability difference and use space wave
The problems such as taking.
To realize that the technical scheme that the object of the invention uses is such, a kind of precast floor slab is connected with girder steel lower flange
Node, including H profile steel beam, precast floor slab and cast-in-place concrete.
The H profile steel beam includes top flange, web and lower flange.The lower flange offers several on along its length
Through hole I.The plate end of the precast floor slab is ridden upon on lower flange.On the precast floor slab spiral shell is embedded with the correspondence position of through hole I
Line sleeve.The screw rod of fixing bolt stretches out precast floor slab after passing through through hole I and screw shell, and precast floor slab is fixed in into H profile steel
On lower flange of girder edge.
On the web through hole II is offered with the corresponding position of through hole I.Connection reinforcing bar is equipped with the through hole II.Institute
The both ends for stating connection reinforcing bar connect the fixing bolt of both sides respectively.
The cast-in-place concrete is poured in the upper surface of the lower flange.The connection reinforcing bar is embedded in cast-in-place concrete
Portion.
Further, the H profile steel beam is welded H section steel or rolled h-section steel beam.
Further, the H profile steel beam is the not wide H profile steel beam in the edge of a wing.The width of the top flange is less than the width of lower flange
Degree.
Further, the upper surface on the upper and lower edge of a wing of the plate face of the web is welded with peg.
Further, the upper surface at the precast floor slab plate end is reserved with notch.
Further, the precast floor slab is solid floor.
Further, the precast floor slab is cassette ceiling.The precast floor slab includes core bore.Filling is cast-in-place in the core bore
Concrete.
The solution have the advantages that unquestionable：
1) part girder steel is placed in cast-in-place concrete, is reduced fire protection expense use, is improved steel beam flange and Web Stability；
2) cast-in-place concrete and connection reinforcing bar can improve the integral working of floor, good mechanical properties；
3) without welding, assembling is simple, and industrialized production can be achieved, and improves production efficiency at scene；
4) in the case where floor clear height is equal, story height, remarkable in economical benefits can be reduced.
Brief description of the drawings
Fig. 1 is connecting joint structure schematic diagram in embodiment 1；
Fig. 2 is H profile steel girder construction schematic diagram in embodiment 1；
Fig. 3 is connection bar construction schematic diagram；
Fig. 4 is connecting joint structure schematic diagram in embodiment 2；
Fig. 5 is H profile steel girder construction schematic diagram in embodiment 2；
Fig. 6 is connecting joint structure schematic diagram in embodiment 3.
In figure：H profile steel beam 1, top flange 101, web 102, through hole II 1021, lower flange 103, through hole I 1031, prefabricated building
Plate 2, core bore 201, notch 202, screw shell 3, peg 4, fixing bolt 5, connection reinforcing bar 6, cast-in-place concrete 8.
Embodiment
With reference to embodiment, the invention will be further described, but should not be construed the above-mentioned subject area of the present invention only
It is limited to following embodiments.Without departing from the idea case in the present invention described above, according to ordinary skill knowledge and used
With means, various replacements and change are made, all should be included within the scope of the present invention.
Embodiment 1：
The present embodiment discloses a kind of precast floor slab and girder steel lower flange connecting node, including H profile steel beam 1, the and of precast floor slab 2
Cast-in-place concrete 8.
Referring to Fig. 1, the H profile steel beam 1 includes top flange 101, web 102 and lower flange 103.The web 102 connects
Between top flange 101 and lower flange 103.The lower flange 103 offers 4 through holes I 1031 on along its length.In this reality
Apply in example, the through hole I 1031 is equidistantly spaced from according to specific requirement.
Referring to Fig. 2, the plate end of the precast floor slab 2 is solid.The plate end of the precast floor slab 2 rides upon lower flange 103
On.On the precast floor slab 2 screw shell 3 is embedded with the correspondence position of through hole I 1031.Fixing bolt 5 passes through the He of through hole I 1031
Screw shell 3, precast floor slab 2 is fixed on H profile steel lower flange of girder edge 103.The upper surface at the plate end of precast floor slab 2 is reserved with
Notch 202.The upper end of the screw rod of the fixing bolt 5 is stretched into notch 202.
The upper surface on the upper and lower edge of a wing 103 of plate face of the web 102 is welded with peg 4, and ensures the appropriate of peg 4
Spacing, diameter and length.Peg 4 can increase the bonding strength between cast-in-place concrete 8 and girder steel 1, improve anti-shear ability and
It is anti-to start ability.
With opening up through hole II 1021 at the opposite position of through hole I 1031 on the web 102.The through hole II 1021 is circle
Hole, the diameter in hole are more than 40mm, facilitate casting concrete, web both sides concrete is formed entirety.In the through hole II 1021
Connection reinforcing bar 6 is equipped with, connection reinforcing bar 6 both ends connect the fixing bolt 5 of both sides respectively.The structural representation of the connection reinforcing bar 6
Figure is shown in Fig. 3.
The cast-in-place concrete 8 is poured in the upper surface of the lower flange 103.The cast-in-place concrete 8 pours closely knit, fills
Between the plate end of full precast floor slab 2 and web 102.Cast-in-place concrete 8 is full of in the notch 202.The connection reinforcing bar 6 is embedded
Inside cast-in-place concrete 8.The upper surface of the cast-in-place concrete 8 is concordant with the upper surface of precast floor slab 2.
Embodiment 2：
The present embodiment discloses a kind of precast floor slab and girder steel lower flange connecting node, including H profile steel beam 1, precast hollow building
Plate 2 and cast-in-place concrete 8.
Referring to Fig. 4, the H profile steel beam 1 is rolled h-section steel beam, including top flange 101, web 102 and lower flange 103.It is described
Web 102 is connected between top flange 101 and lower flange 103.The H profile steel beam 1 is the not wide H profile steel beam in the edge of a wing.On described
The width on the edge of a wing 101 is less than the width of lower flange 103.The lower flange 103 offers 3 through holes I 1031 on along its length.
Referring to Fig. 5, the precast floor slab 2 is cassette ceiling.The precast floor slab 2 includes core bore 201.The precast floor slab
2 plate end is ridden upon on lower flange 103.On the precast floor slab 2 screw shell 3 is embedded with the correspondence position of through hole I 1031.Gu
Determine bolt 5 and pass through through hole I 1031 and screw shell 3, precast floor slab 2 is fixed on H profile steel lower flange of girder edge 103.It is described prefabricated
The upper surface at the plate end of floor 2 is reserved with notch 202.The upper end of the screw rod of the fixing bolt 5 is stretched into notch 202.
Through hole II 1021 is offered according to the spacing of through hole I 1031 on the web 102.The through hole II 1021 is side
Hole, the width in hole are more than 40mm, facilitate casting concrete, web both sides concrete is formed entirety.In the through hole II 1021
Connection reinforcing bar 6 is equipped with, connection reinforcing bar 6 both ends connect the fixing bolt 5 of both sides respectively.
The cast-in-place concrete 8 is poured in the upper surface of the lower flange 103.The cast-in-place concrete 8 pours closely knit.Institute
Connection reinforcing bar 6 is stated to be embedded in inside cast-in-place concrete 8.The upper surface and the upper surface of precast floor slab 2 of the cast-in-place concrete 8 are put down
Together.Cast-in-place concrete 8 is full of between the plate end of precast floor slab 2 and web 102.Cast-in-place concrete is filled in the core bore 201
Length be not less than FFL.
Embodiment 3：
The present embodiment discloses a kind of precast floor slab and girder steel lower flange connecting node, including H profile steel beam 1, the and of precast floor slab 2
Cast-in-place concrete 8.
Referring to Fig. 6, the H profile steel beam 1 is welded H section steel.The H profile steel beam 1 include top flange 101, web 102 and under
The edge of a wing 103.The web 102 is connected between top flange 101 and lower flange 103.The H profile steel beam 1 is the wide H profile steel in the edge of a wing
Beam.
The precast floor slab 2 is solid floor.The plate end of the precast floor slab 2 is ridden upon on lower flange 103.The bottom wing
Edge 103 offers 7 through hole I1031 on along its length.It is embedded with precast floor slab 2 with the through hole I1031 correspondence positions
Screw shell 3.Fixing bolt 5, will be prefabricated through the upper surface of stretching precast floor slab 2 after the through hole I1031 and screw shell 3
Floor 2 is fixed on H profile steel lower flange of girder edge 103.
The web 102 is provided with through hole 1021, and connection reinforcing bar 6 is equipped with through hole 1021.Connection reinforcing bar 6 both ends
The fixing bolt 5 of both sides is connected respectively.
The cast-in-place concrete 8 pours the upper surface in the upper surface of the lower flange 103 and precast floor slab 2.It is described existing
Pouring concrete 8 pour it is closely knit, it is described connection reinforcing bar 6 and top flange 101 be embedded in inside cast-in-place concrete 8.The prefabricated building
The cast-in-place concrete 8 of the upper surface of plate 2 is considered as overlapping layers, and distribution bar can be set in overlapping layers.
Claims (7)
1. a kind of precast floor slab and girder steel lower flange connecting node, it is characterised in that including H profile steel beam (1), precast floor slab (2)
With cast-in-place concrete (8)；
The H profile steel beam (1) includes top flange (101), web (102) and lower flange (103)；The lower flange (103) is along length
Degree offers several through holes I (1031) on direction；The plate end of the precast floor slab (2) is ridden upon on lower flange (103)；It is described
On precast floor slab (2) screw shell (3) is embedded with through hole I (1031) correspondence position；The screw rod of fixing bolt (5) passes through through hole
I (1031) and screw shell (3) stretch out precast floor slab (2) afterwards, and precast floor slab (2) is fixed in into H profile steel lower flange of girder edge (103)
On；
On the web (102) through hole II (1021) is offered with through hole I (1031) corresponding position；The through hole II (1021)
Inside it is equipped with connection reinforcing bar (6)；The both ends of the connection reinforcing bar (6) connect the fixing bolt (5) of both sides respectively；
The cast-in-place concrete (8) is poured in the upper surface of the lower flange (103)；The connection reinforcing bar (6) is embedded in cast-in-place
Concrete (8) is internal.
2. a kind of precast floor slab according to claim 1 and girder steel lower flange connecting node, it is characterised in that：The H types
Girder steel (1) is welded H section steel or rolled h-section steel beam.
3. a kind of precast floor slab according to claim 1 or 2 and girder steel lower flange connecting node, it is characterised in that：The H
Section steel beam (1) is the not wide H profile steel beam in the edge of a wing；The width of the top flange (101) is less than the width of lower flange (103).
4. a kind of precast floor slab according to claim 1 or 2 and girder steel lower flange connecting node, it is characterised in that：It is described
The upper surface on the upper and lower edge of a wing of plate face (103) of web (102) is welded with peg (4).
5. a kind of precast floor slab according to claim 1 or 2 and girder steel lower flange connecting node, it is characterised in that：It is described
The upper surface at precast floor slab (2) plate end is reserved with notch (202).
6. a kind of precast floor slab according to claim 1 or 2 and girder steel lower flange connecting node, it is characterised in that：It is described
Precast floor slab (2) is solid floor.
7. a kind of precast floor slab according to claim 1 or 2 and girder steel lower flange connecting node, it is characterised in that：It is described
Precast floor slab (2) is cassette ceiling；The precast floor slab (2) includes core bore (201)；Filling is cast-in-place mixed in the core bore (201)
Solidifying soil (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710880884.8A CN107700667A (en) | 2017-09-26 | 2017-09-26 | A kind of precast floor slab and girder steel lower flange connecting node |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710880884.8A CN107700667A (en) | 2017-09-26 | 2017-09-26 | A kind of precast floor slab and girder steel lower flange connecting node |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107700667A true CN107700667A (en) | 2018-02-16 |
Family
ID=61175828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710880884.8A Pending CN107700667A (en) | 2017-09-26 | 2017-09-26 | A kind of precast floor slab and girder steel lower flange connecting node |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107700667A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108590005A (en) * | 2018-04-20 | 2018-09-28 | 长安大学 | A kind of hollow two-way superstructure of assembled integral concealed beam and assembly method |
| CN109667376A (en) * | 2019-01-29 | 2019-04-23 | 天津城建大学 | Novel superposed superstructure and its construction method suitable for steel construction H profile steel beam |
| CN110344528A (en) * | 2019-06-20 | 2019-10-18 | 浙江大东吴建筑科技有限公司 | A kind of connecting node for reinforcing assembled floor globality |
| CN110439122A (en) * | 2019-08-21 | 2019-11-12 | 沈阳建筑大学 | A kind of precast floor slab and H profile steel beam connecting structure and connection method |
| WO2020118563A1 (en) * | 2018-12-12 | 2020-06-18 | 大连理工大学 | Design and rapid construction methods for flush assembly of prefabricated steel beams and floor |
| CN112302209A (en) * | 2020-10-21 | 2021-02-02 | 日照大象房屋建设有限公司 | Steel and concrete shear wall mixed structure and manufacturing method thereof |
| CN113738004A (en) * | 2021-09-26 | 2021-12-03 | 上海泰大建筑科技有限公司 | Combined beam plate structure and construction method thereof |
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| FR2851780A1 (en) * | 2003-02-27 | 2004-09-03 | Conseil Service Investissement | Prefabricated bridge girder comprises concrete base plate with lateral portion projecting from web and stowing support extending over upper face of lateral portion |
| CN2663553Y (en) * | 2003-08-26 | 2004-12-15 | 西安建筑科技大学 | Composite beam of floorslab on bottom flange of steel beam |
| CN203440994U (en) * | 2013-06-28 | 2014-02-19 | 武汉弘毅鸿幕墙工程有限公司 | Corrugated web I-section steel and concrete composite flat beam |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108590005B (en) * | 2018-04-20 | 2019-05-24 | 长安大学 | A kind of hollow two-way superstructure of assembled integral concealed beam and assembly method |
| CN108590005A (en) * | 2018-04-20 | 2018-09-28 | 长安大学 | A kind of hollow two-way superstructure of assembled integral concealed beam and assembly method |
| WO2019200969A1 (en) * | 2018-04-20 | 2019-10-24 | 长安大学 | Integrally assembled hidden beam hollow two-way floor slab and assembly method therefor |
| US11306478B2 (en) | 2018-04-20 | 2022-04-19 | Chang'an University | Integrally assembled hidden beam hollow two-way floor system and method for assembling the same |
| US11072925B2 (en) | 2018-12-12 | 2021-07-27 | Dalian University Of Technology | Rapid construction method for flush assembly of the prefabricated steel beam and the floor slab |
| WO2020118563A1 (en) * | 2018-12-12 | 2020-06-18 | 大连理工大学 | Design and rapid construction methods for flush assembly of prefabricated steel beams and floor |
| CN109667376A (en) * | 2019-01-29 | 2019-04-23 | 天津城建大学 | Novel superposed superstructure and its construction method suitable for steel construction H profile steel beam |
| CN109667376B (en) * | 2019-01-29 | 2024-04-26 | 天津城建大学 | Novel superposed floor system suitable for H-shaped steel beam of steel structure and construction method thereof |
| CN110344528A (en) * | 2019-06-20 | 2019-10-18 | 浙江大东吴建筑科技有限公司 | A kind of connecting node for reinforcing assembled floor globality |
| CN110344528B (en) * | 2019-06-20 | 2024-05-14 | 浙江大东吴建筑科技有限公司 | Connecting node for reinforcing integrity of assembled floor slab |
| CN110439122A (en) * | 2019-08-21 | 2019-11-12 | 沈阳建筑大学 | A kind of precast floor slab and H profile steel beam connecting structure and connection method |
| CN112302209B (en) * | 2020-10-21 | 2021-12-24 | 日照大象房屋建设有限公司 | Steel and concrete shear wall mixed structure and manufacturing method thereof |
| CN112302209A (en) * | 2020-10-21 | 2021-02-02 | 日照大象房屋建设有限公司 | Steel and concrete shear wall mixed structure and manufacturing method thereof |
| CN113738004A (en) * | 2021-09-26 | 2021-12-03 | 上海泰大建筑科技有限公司 | Combined beam plate structure and construction method thereof |
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Application publication date: 20180216 |
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