CN105908882A - Reinforced concrete box-girder with lowerable section height and construction method thereof - Google Patents
Reinforced concrete box-girder with lowerable section height and construction method thereof Download PDFInfo
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- CN105908882A CN105908882A CN201610394990.0A CN201610394990A CN105908882A CN 105908882 A CN105908882 A CN 105908882A CN 201610394990 A CN201610394990 A CN 201610394990A CN 105908882 A CN105908882 A CN 105908882A
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- steel
- reinforced concrete
- girder steel
- girder
- concrete floor
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/17—Floor structures partly formed in situ
- E04B5/23—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated
- E04B5/29—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated the prefabricated parts of the beams consisting wholly of metal
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses a reinforced concrete box-girder with the lowerable section height and a construction method of the reinforced concrete box-girder. The reinforced concrete box-girder with the lowerable section height is characterized in that the reinforced concrete box-girder is a composite structure formed by a girder and a reinforced concrete floor; the top flange plate of the girder and the upper half part of the web of the girder are pre-buried in the reinforced concrete floor to serve as the pre-buried part of the reinforced concrete floor, and the lower half part of the web of the girder protrudes and extends to bottom of the reinforced concrete floor. According to the invention, on the one hand, the clear ceiling height is increased through reducing the height of the structure layer, and on the other hand, the lateral stiffness of the girder is increased and the bearing capacity of components is improved.
Description
Technical field
The present invention relates to combination beam and the construction method thereof of armored concrete and steel construction in building structure.
Background technology
Steel construction and the combination beam of concrete component, i.e. steel reinforced concrete combination beam at saving steel, reduction foundation load and strengthen girder steel
The aspect such as lateral rigidity have extraordinary effect；Meanwhile, the fire protecting performance of combination beam with anti-seismic performance compared with non-combined beam
There is also suitable advantage.Along with the development of modern project structure, the application of combinative structure gets more and more, it has also become with concrete
Structure and steel construction the third-largest modern project version arranged side by side.
In the steel reinforced concrete combination beam of existing structure, the top flange plate of girder steel is positioned at the lower section of reinforced concrete floor, at house floor height
In the case of Yi Ding, the height of structure sheaf occupies floor clear height, makes floor clear height therefore reduce, and structure sheaf occupies preciousness
Space layer.
Summary of the invention
The present invention be for avoiding above-mentioned the deficiencies in the prior art in place of, it is provided that a kind of steel reinforced concrete combination beam reducing depth of section and
Construction method, on the one hand by reducing the height increase floor clear height of structure sheaf, on the other hand increases the lateral rigidity of girder steel, carries
High element bearing capacity.
The present invention solves that technical problem adopts the following technical scheme that
The present invention can reduce being structurally characterized in that of the steel reinforced concrete combination beam of depth of section:
Described steel reinforced concrete combination beam refers to the combinative structure formed by girder steel and reinforced concrete floor；
Described girder steel be cross section be the shaped steel girder steel of I-shaped, the web of girder steel is in vertically；
The top flange plate of described girder steel is embedded in reinforced concrete floor, as armored concrete with the first half of the web of girder steel
The built-in fitting of floor, the lower half of the web of girder steel protrudes out the bottom at described reinforced concrete floor；
The construction features of the steel reinforced concrete combination beam that the present invention can reduce depth of section lies also in:
The horixmtal long hole of ovalize is set on the web of the girder steel in described built-in fitting, pre-buried being subject in reinforced concrete floor
Power reinforcing bar runs through in described horixmtal long hole, makes girder steel utilize described horixmtal long hole to be overlapped on steel bar stress, described steel bar stress
It is horizontally disposed along the direction being perpendicular to crossbeam.
The construction features of the steel reinforced concrete combination beam that the present invention can reduce depth of section lies also in: on the surface of the top flange plate of described girder steel
Welding hanging piece, utilizes hanging piece that girder steel is carried out lifting；Described hanger is curved muscle hanger or peg hanger.
The feature of the construction method that the present invention can reduce the steel reinforced concrete combination beam of depth of section is to carry out as follows:
Step a, at the surface soldered hanging piece of top flange plate of girder steel, the web of the girder steel in described built-in fitting is arranged in ellipse
Circular horixmtal long hole；
Step b, utilize hanging piece that girder steel is lifted, make the first half of the top flange plate of described girder steel and the web of girder steel reach
Pre-buried height in reinforced concrete floor, the bed die of reinforced concrete floor is at the web of girder steel, assembling reinforcement coagulation
Steel bar stress in Tulou plate and distribution bar, and make described steel bar stress run through the horixmtal long hole on described girder steel median ventral plate,
Making girder steel utilize described horixmtal long hole to be overlapped on steel bar stress, described steel bar stress is horizontal cloth along the direction being perpendicular to crossbeam
Putting, described distribution bar is horizontally disposed along the direction being parallel to crossbeam；
Step c, complete the construction of steel reinforced concrete combination beam at the bed die upper concrete of reinforced concrete floor.
Compared with the prior art, the present invention has the beneficial effect that:
1, combination beam of the present invention effectively reduces structure sheaf oneself height, increases floor headroom, increases space usable floor area.
2, the top half of girder steel is embedded in reinforced concrete floor by the present invention, significantly enhances the concrete pact to girder steel
Bundle, and then add the lateral rigidity of girder steel, it is effectively increased element bearing capacity.
3, the present invention offers the horixmtal long hole of ovalize on steel beam web plate, can the most conveniently wear the colligation of muscle and reinforcing bar.
Accompanying drawing explanation
Fig. 1 is steel reinforced concrete combination beam main TV structure schematic diagram in the present invention；
Fig. 2 is steel reinforced concrete combination beam side-looking structural representation in the present invention；
Label in figure: 1 girder steel, 2 reinforced concrete floors；3 steel bar stresses；Steel bar stress, 4 distribution bars are arranged on 3a；5
Hanging piece；6 horixmtal long hole.
Detailed description of the invention
Seeing Fig. 1 and Fig. 2, the version of the steel reinforced concrete combination beam that can reduce depth of section in the present embodiment is:
Steel reinforced concrete combination beam refers to the combinative structure formed by girder steel 1 and reinforced concrete floor 2；
Girder steel 1 be cross section be the shaped steel girder steel of I-shaped, the web of girder steel 1 is in vertically；
The top flange plate of girder steel 1 is embedded in reinforced concrete floor 2, as reinforced concrete with the first half of the web of girder steel 1
The built-in fitting of Tulou plate 2, the lower half of the web of girder steel 1 protrudes out the bottom at reinforced concrete floor 2.
In being embodied as, for the ease of construction, the web of the girder steel 1 in built-in fitting arranges the horixmtal long hole 6 of ovalize,
Steel bar stress 3 pre-buried in concrete floor 2 runs through in horixmtal long hole 6, makes girder steel 1 utilize horixmtal long hole 6 to be overlapped on and is subject to
On power reinforcing bar 3, steel bar stress 3 is horizontally disposed along the direction being perpendicular to crossbeam 1.
For the ease of lifting, the surface soldered at the top flange plate of girder steel 1 has hanging piece 5, hanging piece 5 deployment scenarios to be subject to according to flooring
The arrangement of reinforcement of power reinforcing bar 3 and distribution bar 4 is determined, and utilizes hanging piece 5 to may be used for the bearing upper row on top flange plate top
Steel bar stress 3a, it is also possible to utilize hanging piece 5 that girder steel 1 is carried out lifting；Hanging piece 5 can be curved muscle hanger or the bolt with bolt head
Nail hanger；In order to ensure the stability of lifting process, it is two rows that hanging piece 5 can be arranged in parallel on the surface of top flange plate.
The construction method of the combination beam that can reduce depth of section in the present embodiment is to carry out by following step is poly-:
Step 1, complete the making of girder steel 1 in the factory, be the surface soldered hanging piece 5 of top flange plate at girder steel 1,
The horixmtal long hole 6 of ovalize is set on the web of the girder steel 1 in built-in fitting.
Step 2, at the scene, utilizes hanging piece 5 to lift girder steel 1, makes top flange plate and the abdomen of girder steel 1 of girder steel 1
The first half of plate reaches the pre-buried height in reinforced concrete floor 2, and the bed die of reinforced concrete floor 2 is in the abdomen of girder steel 1
At plate, the steel bar stress 3 in assembling reinforcement concrete floor 2 and distribution bar 4, and make steel bar stress 3 run through girder steel 1
Horixmtal long hole 6 on median ventral plate, makes girder steel 1 utilize horixmtal long hole 6 to be overlapped on steel bar stress 3, and steel bar stress 3 is along hanging down
Straight is horizontally disposed in the direction of crossbeam 1, and distribution bar 4 is horizontally disposed along the direction being parallel to crossbeam 1.
Step 3, complete the construction of steel reinforced concrete combination beam at the bed die upper concrete of reinforced concrete floor 2.
As in certain engineering, the thickness of concrete floor is 120mm, and H profile steel beam is H470*250*10*10, according to tradition
Installation of beam slab method, the total height of beam and plate is 590mm after installation is complete.Use the node installation back rest of the present invention and plate
Total height is 510mm.Compared with traditional Installation of beam slab method, the back rest is installed and plate height decreases 80mm.Carry for bottom
Rise the head room of 80mm；The layout of principal rod and distributing reinforcement determines according to practical situation, the layout used in the present embodiment
Method is that double-layer double-direction is arranged.
Claims (4)
1. can reduce a steel reinforced concrete combination beam for depth of section, it is characterized in that:
Described steel reinforced concrete combination beam refers to the combinative structure formed by girder steel (1) and reinforced concrete floor (2)；
Described girder steel (1) be cross section be the shaped steel girder steel of I-shaped, the web of girder steel (1) is in vertically；
The top flange plate of described girder steel (1) is embedded in reinforced concrete floor (2), as reinforcing bar with the first half of the web of girder steel (1)
The built-in fitting of concrete floor (2), the lower half of the web of girder steel (1) protrudes out the bottom in described reinforced concrete floor (2).
The steel reinforced concrete combination beam reducing depth of section the most according to claim 1, is characterized in that:
Described as arranging the horixmtal long hole (6) of ovalize on the web of the girder steel (1) in built-in fitting, reinforced concrete floor
(2) steel bar stress (3) pre-buried in runs through in described horixmtal long hole (6), makes girder steel (1) utilize described horixmtal long hole (6) to be overlapped on and is subject to
On power reinforcing bar (3), described steel bar stress (3) is horizontally disposed along being perpendicular to the direction of crossbeam (1).
The steel reinforced concrete combination beam reducing depth of section the most according to claim 1 and 2, is characterized in that: in described girder steel (1)
The surface soldered hanging piece (5) of top flange plate, utilize hanging piece (5) that girder steel (1) is carried out lifting；Described hanger (5) be curved muscle hanger or
Peg hanger.
4. a construction method for the steel reinforced concrete combination beam of the reduced depth of section described in claim 1, is characterized in that by following step
Suddenly carry out:
Step a, at the surface soldered hanging piece (5) of top flange plate of girder steel (1), on the web of the girder steel (1) in described built-in fitting
The horixmtal long hole (6) of ovalize is set；
Step b, utilize hanging piece (5) that girder steel (1) is lifted, make the top flange plate of described girder steel (1) and the web of girder steel (1)
The first half reaches the pre-buried height in reinforced concrete floor (2), and the bed die of reinforced concrete floor (2) is in the web of girder steel (1)
Place, the steel bar stress (3) in assembling reinforcement concrete floor (2) and distribution bar (4), and make described steel bar stress (3) run through institute
State the horixmtal long hole (6) on girder steel (1) median ventral plate, make girder steel (1) utilize described horixmtal long hole (6) to be overlapped on steel bar stress (3), institute
It is horizontally disposed for stating steel bar stress (3) along being perpendicular to the direction of crossbeam (1), and described distribution bar (4) is along being parallel to crossbeam (1)
Direction is horizontally disposed；
Step c, complete the construction of steel reinforced concrete combination beam at the bed die upper concrete of reinforced concrete floor (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610394990.0A CN105908882A (en) | 2016-05-31 | 2016-05-31 | Reinforced concrete box-girder with lowerable section height and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610394990.0A CN105908882A (en) | 2016-05-31 | 2016-05-31 | Reinforced concrete box-girder with lowerable section height and construction method thereof |
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| CN105908882A true CN105908882A (en) | 2016-08-31 |
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| CN201610394990.0A Pending CN105908882A (en) | 2016-05-31 | 2016-05-31 | Reinforced concrete box-girder with lowerable section height and construction method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106894556A (en) * | 2017-04-19 | 2017-06-27 | 上海欧本钢结构有限公司 | A kind of floor system being made up of cold-rolled forming section combination beam |
| CN108330805A (en) * | 2018-01-31 | 2018-07-27 | 广州大学 | A kind of structure promoting combination beam performance |
| CN111119407A (en) * | 2020-02-18 | 2020-05-08 | 孙叶根 | Steel-concrete composite beam |
| CN111502033A (en) * | 2020-05-06 | 2020-08-07 | 无锡锡晟建设有限公司 | Quick mounting structure of full-prefabricated high strength PC floor and girder steel |
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| US5279093A (en) * | 1991-12-11 | 1994-01-18 | Mulach Parking Structures Corp. | Composite girder with apparatus and method for forming the same |
| US6807789B1 (en) * | 2003-05-23 | 2004-10-26 | Daewoo Engineering & Construction Co., Ltd | Steel-concrete composite beam using asymmetric section steel beam |
| CN2893034Y (en) * | 2006-06-14 | 2007-04-25 | 北京建工一建工程建设有限公司 | Web plate open slot type inverted T shape steel and concrete combined beam |
| CN101314970A (en) * | 2008-07-18 | 2008-12-03 | 王本淼 | Cast-in-situ section steel concrete cavity building roof |
| CN103422603A (en) * | 2013-09-11 | 2013-12-04 | 南京工业大学 | Spiral stirrup shear connector and manufacturing and mounting method |
| CN203701279U (en) * | 2013-09-11 | 2014-07-09 | 南京工业大学 | Novel stirrup shear connector |
| CN205224363U (en) * | 2015-11-19 | 2016-05-11 | 中国建筑第八工程局有限公司 | Connection structure of floor and girder steel |
| CN205663076U (en) * | 2016-05-31 | 2016-10-26 | 安徽富煌建筑设计研究有限公司 | Can reduce steel and concrete composite roof beam of cross -sectional height |
-
2016
- 2016-05-31 CN CN201610394990.0A patent/CN105908882A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5279093A (en) * | 1991-12-11 | 1994-01-18 | Mulach Parking Structures Corp. | Composite girder with apparatus and method for forming the same |
| US6807789B1 (en) * | 2003-05-23 | 2004-10-26 | Daewoo Engineering & Construction Co., Ltd | Steel-concrete composite beam using asymmetric section steel beam |
| CN2893034Y (en) * | 2006-06-14 | 2007-04-25 | 北京建工一建工程建设有限公司 | Web plate open slot type inverted T shape steel and concrete combined beam |
| CN101314970A (en) * | 2008-07-18 | 2008-12-03 | 王本淼 | Cast-in-situ section steel concrete cavity building roof |
| CN103422603A (en) * | 2013-09-11 | 2013-12-04 | 南京工业大学 | Spiral stirrup shear connector and manufacturing and mounting method |
| CN203701279U (en) * | 2013-09-11 | 2014-07-09 | 南京工业大学 | Novel stirrup shear connector |
| CN205224363U (en) * | 2015-11-19 | 2016-05-11 | 中国建筑第八工程局有限公司 | Connection structure of floor and girder steel |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106894556A (en) * | 2017-04-19 | 2017-06-27 | 上海欧本钢结构有限公司 | A kind of floor system being made up of cold-rolled forming section combination beam |
| CN108330805A (en) * | 2018-01-31 | 2018-07-27 | 广州大学 | A kind of structure promoting combination beam performance |
| CN108330805B (en) * | 2018-01-31 | 2023-08-29 | 广州大学 | Structure for improving performance of composite beam |
| CN111119407A (en) * | 2020-02-18 | 2020-05-08 | 孙叶根 | Steel-concrete composite beam |
| CN111502033A (en) * | 2020-05-06 | 2020-08-07 | 无锡锡晟建设有限公司 | Quick mounting structure of full-prefabricated high strength PC floor and girder steel |
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Application publication date: 20160831 |
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