CN106223185B - Multi-layer concrete plate combination beam and WELDING STUDS design method with WELDING STUDS group - Google Patents
Multi-layer concrete plate combination beam and WELDING STUDS design method with WELDING STUDS group Download PDFInfo
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- CN106223185B CN106223185B CN201610573564.3A CN201610573564A CN106223185B CN 106223185 B CN106223185 B CN 106223185B CN 201610573564 A CN201610573564 A CN 201610573564A CN 106223185 B CN106223185 B CN 106223185B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
- E01D19/125—Grating or flooring for bridges
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- Bridges Or Land Bridges (AREA)
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Abstract
The invention discloses a kind of multi-layer concrete plate combination beam and WELDING STUDS design method with WELDING STUDS group, it is related to science of bridge building the realm of building construction, the multi-layer concrete plate combination beam with WELDING STUDS group includes the concrete slab that at least two-layer laminate is set；An at least girder steel, girder steel include top flange, top flange support concrete slab bottom；Meanwhile WELDING STUDS group includes multigroup WELDING STUDS, one group of WELDING STUDS is equipped with per layer concrete plate, WELDING STUDS includes ailhead and nail body, ailhead with the WELDING STUDS of group is embedded in the concrete slab of equivalent layer, and the nail body of every group of WELDING STUDS is all connected to top flange, identical with the structure of the WELDING STUDS of group.The distance of the ailhead of each group of WELDING STUDS to the concrete slab bottom surface for burying the ailhead is less than the 2/3 of respective slabs thickness.The present invention solves the problems, such as double-deck or multi-layer concrete plate combination beam key stress.
Description
Technical field
The present invention relates to science of bridge building the realm of building construction, and in particular to a kind of multi-layer concrete plate with WELDING STUDS group
Combination beam and WELDING STUDS design method.
Background technology
Steel-concrete composite beam is the structure being composed of girder steel by WELDING STUDS and armoured concrete slab.Conventional
Steel-concrete composite beam, floorings are integral prefabricated, by the way of integral prefabricated rear combination, limited by lift heavy, floorings and steel
Beam separately lifts, and adds lifting number, while increases Contraction in Site amount, increases water pollution, atmosphere pollution and consolidates
The risk of body waste pollution, causes to seriously affect to urban transportation.
Due to being continuously increased for the volume of traffic and heavy vehicle, along with the influence of environment, conventional steel-concrete composite beam
It is locally broken that armored concrete wing plate longitudinal cracking, reinforced concrete bridge deck plate Transverse Cracks, floorings are occurred as soon as soon in operation
Split or the problems such as burn into girder steel corrosion, seriously affect the service life of bridge.And steel-concrete composite beam floorings are in horizontal stroke
To during cantilever force, anti-to start ability and meet force request, the floorings constructed in advance are easily started and occurred
Destroy.
The content of the invention
For defect existing in the prior art, it is an object of the invention to provide a kind of multilayer with WELDING STUDS group to mix
Concrete board combination beam and WELDING STUDS design method, it is ensured that the Shear transfer between each layer floorings and girder steel meets the requirements same
When, and ensure that floorings are not started under horizontal cantilever Moment.
To achieve the above objectives, the present invention adopts the technical scheme that：
A kind of multi-layer concrete plate combination beam with WELDING STUDS group, including：
The concrete slab that at least two-layer laminate is set；
An at least girder steel, the girder steel include top flange, and the top flange supports the concrete slab bottom；
Meanwhile the WELDING STUDS group includes multigroup WELDING STUDS, one group of WELDING STUDS, the shearing are equipped with per layer concrete plate
Nail includes ailhead and nail body, and the ailhead with the WELDING STUDS of group is embedded in the concrete slab of equivalent layer, every group of WELDING STUDS
Nail body be all connected to the top flange.
Based on the above technical solutions, it is identical with the structure of the WELDING STUDS of group.
Based on the above technical solutions, the ailhead of each group of WELDING STUDS is to the concrete slab bottom surface for burying the ailhead
Distance is less than the 2/3 of respective slabs thickness.
Based on the above technical solutions, the girder steel includes web, the top flange it is vertical be arranged on the web
On, the WELDING STUDS group is arranged symmetrically along the web.
Based on the above technical solutions, a kind of WELDING STUDS of the multi-layer concrete plate combination beam with WELDING STUDS group is set
Meter method, it is characterised in that：
S1, the number of plies for determining the multi-layer concrete plate, calculate the shearing between each layer concrete plate, and multilayer coagulation
Shearing between native plate and girder steel；
S2, according to the shearing between multi-layer concrete plate and girder steel, select each layer concrete plate internal shear force nail nail body diameter
With ailhead diameter, shearing and withdrawal resistance that WELDING STUDS can bear are determined；
S3, the shearing and withdrawal resistance that can be born according to selected each layer concrete plate internal shear force nail, determine each layer concrete plate
The WELDING STUDS quantity needed.
Based on the above technical solutions, in S1, first determine that the concrete slab number of plies is n, further according to Concrete cover
Number calculates maximum load suffered by concrete slab combination beam, and it is T to calculate the suffered shearing of the i-th layer concrete platei, multi-layer concrete plate with
Shearing T between girder steelX；
In S2, T is sheared according to suffered by the i-th layer concrete platei, select the i-th layer concrete plate internal shear force nail nail body diameter
For Di, a diameter of d of ailheadi, shearing Δ T that the WELDING STUDS can beariWith withdrawal resistance Δ Fi, wherein i=1,2,
3......n, n=2,3.......
Based on the above technical solutions, in S3, WELDING STUDS needed for the i-th layer concrete plate follows closely body quantityWherein i=1,2,3......n, TiFor shearing, Δ T suffered by the i-th layer concrete plateiIt can be held for the WELDING STUDS
The shearing received.
Based on the above technical solutions, the quantity of ailhead is n in the i-th layer concrete plateI heads=nI bodies-nI-1 bodies, wherein i
=1,2,3......n, nI bodiesBody quantity, n are followed closely for WELDING STUDS needed for the i-th layer concrete plateI-1 bodiesFor needed for the i-th -1 layer concrete plate
WELDING STUDS follows closely body quantity.
Compared with prior art, the advantage of the invention is that：
The multi-layer concrete plate combination beam and WELDING STUDS design method selection different size with WELDING STUDS group of the present invention
WELDING STUDS be combined into a kind of WELDING STUDS group, solve the problems, such as double-deck or multi-layer concrete floorings combination beam key stress.
Brief description of the drawings
Fig. 1 is the WELDING STUDS group structure schematic diagram of double layer concrete plate combination beam in the embodiment of the present invention；
Fig. 2 is top view of the WELDING STUDS group of double layer concrete plate combination beam in the embodiment of the present invention along ailhead direction；
Fig. 3 is the WELDING STUDS group structure schematic diagram of multi-layer concrete plate combination beam in the embodiment of the present invention；
Fig. 4 is top view of the WELDING STUDS group of multi-layer concrete plate combination beam in the embodiment of the present invention along ailhead direction；
In figure：1- girder steels, 101- top flanges, 102- lower flanges, 103- webs, 2- bottom concrete plates, 3- concrete surfaces
Plate, 4- WELDING STUDS groups, 41- bottom WELDING STUDSs, 42- panel WELDING STUDSs, the first WELDING STUDSs of 43-, the second WELDING STUDSs of 44-, 45- the 3rd
WELDING STUDS, the 4th WELDING STUDSs of 46-, 7- first layer concrete slabs, 8- second layer concrete slabs, 9- third layer concrete slabs, 10-
Four layer concrete plates.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and embodiments.
The embodiment of the present invention provides a kind of multi-layer concrete plate combination beam with WELDING STUDS group, including：
The concrete slab that at least two-layer laminate is set；
An at least girder steel 1, girder steel 1 include top flange 101, and top flange 101 is supported in concrete slab bottom；
Meanwhile WELDING STUDS group 4 includes multigroup WELDING STUDS, one group of WELDING STUDS is equipped with per layer concrete plate, WELDING STUDS includes
Ailhead and nail body, the ailhead with the WELDING STUDS of group are embedded in the concrete slab of equivalent layer, and the nail body of every group of WELDING STUDS connects
It is connected to top flange 101.
It is identical with the structure of the WELDING STUDS of group.
It is thick that the distance of the ailhead of each group of WELDING STUDS to the concrete slab bottom surface for burying the ailhead is less than respective slabs
The 2/3 of degree.
Girder steel 1 includes web 103, and top flange 101 is vertical to be arranged on web 103, and WELDING STUDS group 4 is symmetrical along web 103
Arrangement.
A kind of WELDING STUDS design method of the multi-layer concrete plate combination beam with WELDING STUDS group, it is characterised in that：
S1, the number of plies for determining multi-layer concrete plate, calculate the shearing between each layer concrete plate, and multi-layer concrete plate
Shearing between girder steel；
S2, according to the shearing between multi-layer concrete plate and girder steel, each layer concrete plate can be selected from technical manual
Internal shear force nail nail body diameter and ailhead diameter, determine shearing and withdrawal resistance that WELDING STUDS can bear；
S3, the shearing and withdrawal resistance that can be born according to selected each layer concrete plate internal shear force nail, determine each layer concrete plate
The WELDING STUDS quantity needed.
In S1, according to concrete slab thickness, the Lifting Capacity of lifting machine and the deliverability of concrete, first determine mixed
The concrete board number of plies is n, calculates maximum load suffered by concrete slab combination beam further according to the concrete slab number of plies, calculates i-th layer of coagulation
The suffered shearing of native plate is Ti, the shearing T between multi-layer concrete plate and girder steelX；
In S2, T is sheared according to suffered by the i-th layer concrete platei, select the i-th layer concrete plate internal shear force nail nail body diameter
For Di, a diameter of d of ailheadi, shearing Δ T that the WELDING STUDS can beariWith withdrawal resistance Δ Fi, wherein i=1,2,
3......n, n=2,3.......
In S3, WELDING STUDS needed for the i-th layer concrete plate follows closely body quantityWherein i=1,2,3......n, Ti
For shearing, Δ T suffered by the i-th layer concrete plateiThe shearing that can bear for WELDING STUDS.
The quantity of ailhead is n in i-th layer concrete plateI heads=nI bodies-nI-1 bodies, wherein i=1,2,3......n, nI bodiesFor i-th
WELDING STUDS needed for layer concrete plate follows closely body quantity, nI-1 bodiesBody quantity is followed closely for WELDING STUDS needed for the i-th -1 layer concrete plate.
The specific embodiment of the invention 1 is as shown in Figure 1, double layer concrete plate combination beam includes some girder steels 1 arranged side by side, girder steel
1 includes top flange 101, lower flange 102 and web 103, and 101 upper end of top flange is equipped with bottom concrete plate 2, on top flange 101
End face is equipped with WELDING STUDS group 4, and 2 upper end of bottom concrete plate is laid with concrete slab 3, and WELDING STUDS group 4 includes bottom WELDING STUDS
41 and panel WELDING STUDS 42, the top view of embodiment 1 is illustrated in figure 2, bottom WELDING STUDS 41 and panel WELDING STUDS 42 are arranged into
Rectangle.
The specific embodiment of the invention 2 is as shown in figure 3, multi-layer concrete plate combination beam includes some girder steels 1 arranged side by side, girder steel
1 includes top flange 101, lower flange 102 and web 103, and 101 upper end of top flange is equipped with first layer concrete slab 7, top flange 101
Upper surface is equipped with WELDING STUDS group 4, and 7 upper end of first layer concrete slab is laid with second layer concrete slab 8, third layer concrete successively
Plate 9, the 4th layer concrete plate 10, WELDING STUDS group 4 include the first WELDING STUDS 43, the second WELDING STUDS 44, the 3rd WELDING STUDS 45 and the
Four WELDING STUDSs 46, this four kinds of WELDING STUDS ailheads are respectively positioned at first layer concrete slab 7, second layer concrete slab 8, third layer coagulation
In native 9 and the 4th layer concrete plate 10 of plate, the top view of embodiment 2, the first WELDING STUDS 43, the second WELDING STUDS are illustrated in figure 4
44th, the 3rd WELDING STUDS 45 and the 4th WELDING STUDS 46 are arranged rectangular, and height arrangement straggly.
Double-deck or multi-layer concrete plate combination beam be consider construction is convenient, reduce interference, reduce concrete supply will
Ask, meet that structure stress adapts to a kind of type of bridge of the rapid transformation in city, concrete slab is layered, bottom floorings
Using prefabricated bridge, each layer uses the combining structure of cast-in-place floorings thereon., can conduct after bottom floorings are combined with girder steel
Template, pours the cast-in-place floorings of each layer thereon at the scene, and final each cast-in-place floorings of layer form entirety with bottom floorings, and lead to
WELDING STUDS group is crossed to be combined with girder steel.This bridge structure realizes Light-duty Structural, prefabricated and prefabricated construction, site operation speed
The features such as degree is fast, the cycle is short, take up an area less, low noise, has substantially no effect on the original traffic in city.
The present invention is not limited to the above-described embodiments, for those skilled in the art, is not departing from
On the premise of the principle of the invention, some improvements and modifications can also be made, these improvements and modifications are also considered as the protection of the present invention
Within the scope of.The content not being described in detail in this specification belongs to the prior art known to professional and technical personnel in the field.
Claims (8)
- A kind of 1. multi-layer concrete plate combination beam with WELDING STUDS group, it is characterised in that including：The concrete slab that at least two-layer laminate is set；An at least girder steel (1), the girder steel (1) include top flange (101), and the top flange (101) supports the concrete slab Bottom；Meanwhile the WELDING STUDS group (4) includes multigroup WELDING STUDS, one group of WELDING STUDS, the shearing are equipped with per layer concrete plate Nail includes ailhead and nail body, and the ailhead with the WELDING STUDS of group is embedded in the concrete slab of equivalent layer, every group of WELDING STUDS Nail body be all connected to the top flange (101).
- 2. there is the multi-layer concrete plate combination beam of WELDING STUDS group as claimed in claim 1, it is characterised in that：With the shearing of group The structure of nail is identical.
- 3. there is the multi-layer concrete plate combination beam of WELDING STUDS group as claimed in claim 1, it is characterised in that：Each group of shearing The distance of the ailhead of nail to the concrete slab bottom surface for burying the ailhead is less than the 2/3 of respective slabs thickness.
- 4. there is the multi-layer concrete plate combination beam of WELDING STUDS group as claimed in claim 1, it is characterised in that：The girder steel (1) web (103) is included, the top flange (101) is vertical to be arranged on the web (103), and the WELDING STUDS group (4) is along institute Web (103) is stated to be arranged symmetrically.
- 5. the WELDING STUDS design of the multi-layer concrete plate combination beam with WELDING STUDS group as described in claim 1-4 any one Method, it is characterised in that：S1, the number of plies for determining the multi-layer concrete plate, calculate the shearing between each layer concrete plate, and multi-layer concrete plate Shearing between girder steel；S2, according to the shearing between multi-layer concrete plate and girder steel, select each layer concrete plate internal shear force nail nail body diameter and nail Head diameter, determines shearing and withdrawal resistance that WELDING STUDS can bear；S3, the shearing and withdrawal resistance that can be born according to selected each layer concrete plate internal shear force nail, determine each layer concrete plate needs WELDING STUDS quantity.
- 6. the WELDING STUDS design method of the multi-layer concrete plate combination beam with WELDING STUDS group as claimed in claim 5, it is special Sign is：In S1, first determine that the concrete slab number of plies is n, calculates suffered by concrete slab combination beam further according to the concrete slab number of plies Maximum load, it is T to calculate the suffered shearing of the i-th layer concrete platei, the shearing T between multi-layer concrete plate and girder steelX；In S2, T is sheared according to suffered by the i-th layer concrete platei, select a diameter of D of the i-th layer concrete plate internal shear force nail nail bodyi、 The a diameter of d of ailheadi, shearing Δ T that the WELDING STUDS can beariWith withdrawal resistance Δ Fi, wherein i=1,2,3......n, n= 2、3......。
- 7. the WELDING STUDS design method of the multi-layer concrete plate combination beam with WELDING STUDS group as claimed in claim 6, it is special Sign is：In S3, WELDING STUDS needed for the i-th layer concrete plate follows closely body quantityWherein i=1,2,3......n, Ti For shearing, Δ T suffered by the i-th layer concrete plateiThe shearing that can bear for the WELDING STUDS.
- 8. the WELDING STUDS design method of the multi-layer concrete plate combination beam with WELDING STUDS group as claimed in claim 7, it is special Sign is：The quantity of ailhead is n in i-th layer concrete plateI heads=nI bodies-nI-1 bodies, wherein i=1,2,3......n, nI bodiesFor i-th layer WELDING STUDS needed for concrete slab follows closely body quantity, nI-1 bodiesBody quantity is followed closely for WELDING STUDS needed for the i-th -1 layer concrete plate.
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| CN201610573564.3A CN106223185B (en) | 2016-07-21 | 2016-07-21 | Multi-layer concrete plate combination beam and WELDING STUDS design method with WELDING STUDS group |
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| CN107515975B (en) * | 2017-08-11 | 2019-10-25 | 武汉理工大学 | The ultimate shear bearing capacity computation method of cluster type length WELDING STUDS |
| CN109440628A (en) * | 2018-11-11 | 2019-03-08 | 中铁二院工程集团有限责任公司 | Connecting structure between assembled steel web and precast slab |
| CN110273552A (en) * | 2019-06-25 | 2019-09-24 | 中交一公局集团有限公司 | Tool for improving positioning precision of shear nail |
| CN112962416A (en) * | 2021-02-25 | 2021-06-15 | 四川省公路规划勘察设计研究院有限公司 | Steel plate girder bridge suitable for mountain area construction and construction method thereof |
| CN114319080B (en) * | 2022-01-17 | 2024-06-04 | 宁波市高等级公路建设管理中心 | High strength bent cap structure based on UHPC shell |
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| CA2460643A1 (en) * | 2004-02-27 | 2005-08-27 | William Richard Haldane-Wilsone | Improvement in load supporting structure |
| CN202766969U (en) * | 2012-06-29 | 2013-03-06 | 长安大学 | Steel and wood combination bridge deck pavement structure with shear keys |
| CN103696353B (en) * | 2013-12-16 | 2016-06-22 | 武汉理工大学 | The method determining steel-mixed composite beam bridge boundary of web elastic restraint against rotation coefficient |
| JP6316665B2 (en) * | 2014-06-03 | 2018-04-25 | オリエンタル白石株式会社 | Composite structure of steel girder and precast slab and its construction method |
| CN204703351U (en) * | 2015-06-15 | 2015-10-14 | 许昌学院 | A kind of concrete combined beam structure |
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