CN204703351U - A kind of concrete combined beam structure - Google Patents
A kind of concrete combined beam structure Download PDFInfo
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- CN204703351U CN204703351U CN201520410112.4U CN201520410112U CN204703351U CN 204703351 U CN204703351 U CN 204703351U CN 201520410112 U CN201520410112 U CN 201520410112U CN 204703351 U CN204703351 U CN 204703351U
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Abstract
The utility model discloses a kind of concrete combined beam structure, it comprises the some girder steels be set up in parallel, first ultra-high performance concrete layer is set between above two girder steel, first ordinary concrete layer, second ultra-high performance concrete layer, second ordinary concrete layer and ultra-high performance concrete surface layer, described first ultra-high performance concrete layer, first ordinary concrete layer, second ultra-high performance concrete layer, second ordinary concrete layer and ultra-high performance concrete surface layer set gradually from the bottom to top, described girder steel top arranges connecting portion, described first ultra-high performance concrete layer end is connected with described connecting portion with the first ordinary concrete layer end, described second ultra-high performance concrete layer is also connected with described connecting portion by shear connector.By the setting of multi-layer concrete structure, there is high strength and high tenacity.
Description
Technical field
The utility model relates to construction engineering technical field, is specifically related to a kind of concrete combined beam structure.
Background technology
Conventional steel-concrete composite beam is by the structure exposing girder steel or steel truss girder and combined by connector and armored concrete slab, the type bridge is fast with its speed of application, the advantages such as building height is little, and anti-seismic performance is good, are widely used in building construction and highway and Urban Bridge Construction.Due to the continuous increase of the traffic volume and heavy vehicle, add the impact of environment, shortly there is the disease problems such as steel concrete wing plate longitudinal cracking, reinforced concrete bridge deck plate Transverse Cracks, bridge deck partial fracture or the corrosion of burn into girder steel in operation in conventional steel-concrete composite beam, has a strong impact on the application life of bridge.Main cause is that common steel concrete (NRC) plate intensity is low, poor toughness, porosity are high, easily occurs damaging, reduce application life under load and environmental activity.Ultra-high performance concrete (UHPC) take fine sand as aggregate, mix a large amount of silicon ash and wait mineral admixture, high efficiency water reducing agent and micro steel fiber, a kind of high strength, high-durability, high tenacity, the closely knit concrete material that are formed, compared with common concrete, eliminate coarse aggregate (stone), be the high performance concrete that fines dense material and fiber reinforced material are composited, compressive strength and tensile strength all will exceed much than common concrete.Although UHPC performance is fine, cost is higher than common concrete a lot, and bridge deck entirely can be very uneconomical with UHPC.
In order to solve above technical problem, publication number is that CN 104343203 A discloses a kind of novel compositions girder construction based on steel-ultra-high performance concrete, comprise some girder steels arranged side by side, the top of described girder steel is provided with concrete frange plate, described concrete frange plate comprises the some ordinary concrete precast plates born between two adjacent girder steel tops, the girder steel of the seam crossing between described ordinary concrete precast plate is welded with shear connector, ultra-high performance concrete or ordinary concrete has all been built in seam between described ordinary concrete precast plate, ultra-high performance concrete surface layer A has been built on described ordinary concrete precast plate top.
But above technology also exists some other technical problem, as not being very desirable in the problem of crack resistence, and the requirement of high strength, high tenacity can not be reached.
Utility model content
The utility model overcomes the deficiencies in the prior art, provides a kind of concrete combined beam structure with high strength, high tenacity.
Consider the problems referred to above of prior art, according to an aspect of the present utility model, for solving above-mentioned technical problem, the utility model by the following technical solutions:
A kind of concrete combined beam structure, it comprises the some girder steels be set up in parallel, first ultra-high performance concrete layer is set between above two girder steel, first ordinary concrete layer, second ultra-high performance concrete layer, second ordinary concrete layer and ultra-high performance concrete surface layer, described first ultra-high performance concrete layer, first ordinary concrete layer, second ultra-high performance concrete layer, second ordinary concrete layer and ultra-high performance concrete surface layer set gradually from the bottom to top, described girder steel top arranges connecting portion, described first ultra-high performance concrete layer end is connected with described connecting portion with the first ordinary concrete layer end, described second ultra-high performance concrete layer is also connected with described connecting portion by shear connector.
In order to realize the utility model better, further technical scheme is:
According to an embodiment of the present utility model, the thickness of described second ultra-high performance concrete layer is greater than the thickness of described first ultra-high performance concrete layer.
According to another embodiment of the present utility model, the thickness of described second ordinary concrete layer is greater than the thickness of described first ordinary concrete layer.
According to another embodiment of the present utility model, the thickness of described ultra-high performance concrete surface layer is less than the thickness of described second ultra-high performance concrete layer.
The utility model can also be:
According to another embodiment of the present utility model, in described second ultra-high performance concrete layer, be configured with reinforcing bar.
Compared with prior art, one of the beneficial effects of the utility model are:
Concrete combined beam structure of the present utility model, by the setting of multi-layer concrete structure, has high strength and high tenacity, can be good at the effect playing crack resistence, found through experiments and can greatly improve its supporting capacity, and make himself weight as far as possible little, and structure is simple.
Accompanying drawing explanation
In order to clearer explanation present specification embodiment or technical scheme of the prior art, below the accompanying drawing used required in the description to embodiment or prior art is briefly described, apparently, the accompanying drawing that the following describes is only the reference to some embodiments in present specification, for those skilled in the art, when not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the concrete combined beam structure schematic diagram according to the utility model embodiment.
Wherein, the name corresponding to the Reference numeral in accompanying drawing is called:
1-girder steel, 2-first ultra-high performance concrete layer, 3-first ordinary concrete layer, 4-second ultra-high performance concrete layer, 5-second ordinary concrete layer, 6-ultra-high performance concrete surface layer, 7-connecting portion, 8-shear connector.
Detailed description of the invention
Below in conjunction with embodiment, the utility model is described in further detail, but embodiment of the present utility model is not limited thereto.
As shown in Figure 1, Fig. 1 is the concrete combined beam structure schematic diagram according to the utility model embodiment, a kind of concrete combined beam structure, it comprises the some girder steels be set up in parallel 1, first ultra-high performance concrete layer 2 is set between above two girder steels 1, first ordinary concrete layer 3, second ultra-high performance concrete layer 4, second ordinary concrete layer 5 and ultra-high performance concrete surface layer 6, described first ultra-high performance concrete layer 2, first ordinary concrete layer 3, second ultra-high performance concrete layer 4, second ordinary concrete layer 5 and ultra-high performance concrete surface layer 6 set gradually from the bottom to top, described girder steel 1 top arranges connecting portion 7, described first ultra-high performance concrete layer 2 end is connected with described connecting portion 7 with the first ordinary concrete layer 3 end, described second ultra-high performance concrete layer 4 is also connected with described connecting portion 7 by shear connector 8.
The thickness of described second ultra-high performance concrete layer 4 is greater than the thickness of described first ultra-high performance concrete layer 2.
The thickness of described second ordinary concrete layer 5 is greater than the thickness of described first ordinary concrete layer 3.
The thickness of described ultra-high performance concrete surface layer 6 is less than the thickness of described second ultra-high performance concrete layer 4.
Reinforcing bar is configured with in described second ultra-high performance concrete layer 4.
In sum, arranged by the combination of above concrete, there is high strength and high tenacity, can be good at the effect playing crack resistence, found through experiments and can greatly improve its supporting capacity, and make himself weight as far as possible little, and structure is simple.
In this manual, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiment, identical similar portion cross-reference between each embodiment.
Although be described the utility model with reference to multiple explanatory embodiment of the present utility model here, but, should be appreciated that, those skilled in the art can design a lot of other amendment and embodiment, these amendments and embodiment will drop within spirit disclosed in the present application and spirit.
Claims (5)
1. a concrete combined beam structure, it is characterized in that it comprises the some girder steels be set up in parallel (1), between two girder steel (1) tops, the first ultra-high performance concrete layer (2) is set, first ordinary concrete layer (3), second ultra-high performance concrete layer (4), second ordinary concrete layer (5) and ultra-high performance concrete surface layer (6), described first ultra-high performance concrete layer (2), first ordinary concrete layer (3), second ultra-high performance concrete layer (4), second ordinary concrete layer (5) and ultra-high performance concrete surface layer (6) set gradually from the bottom to top, described girder steel (1) top arranges connecting portion (7), described first ultra-high performance concrete layer (2) end is connected with described connecting portion (7) with the first ordinary concrete layer (3) end, described second ultra-high performance concrete layer (4) is also connected with described connecting portion (7) by shear connector (8).
2. concrete combined beam structure according to claim 1, is characterized in that the thickness of described second ultra-high performance concrete layer (4) is greater than the thickness of described first ultra-high performance concrete layer (2).
3. concrete combined beam structure according to claim 1, is characterized in that the thickness of described second ordinary concrete layer (5) is greater than the thickness of described first ordinary concrete layer (3).
4. concrete combined beam structure according to claim 1, is characterized in that the thickness of described ultra-high performance concrete surface layer (6) is less than the thickness of described second ultra-high performance concrete layer (4).
5. concrete combined beam structure according to claim 1, is characterized in that being configured with reinforcing bar in described second ultra-high performance concrete layer (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520410112.4U CN204703351U (en) | 2015-06-15 | 2015-06-15 | A kind of concrete combined beam structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520410112.4U CN204703351U (en) | 2015-06-15 | 2015-06-15 | A kind of concrete combined beam structure |
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| CN204703351U true CN204703351U (en) | 2015-10-14 |
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| CN201520410112.4U Expired - Fee Related CN204703351U (en) | 2015-06-15 | 2015-06-15 | A kind of concrete combined beam structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106223185A (en) * | 2016-07-21 | 2016-12-14 | 中铁大桥勘测设计院集团有限公司 | There is multi-layer concrete plate combination beam and the WELDING STUDS method for designing of WELDING STUDS group |
| CN107587606A (en) * | 2017-09-25 | 2018-01-16 | 上海建工五建集团有限公司 | High performance concrete chain type combining structure |
-
2015
- 2015-06-15 CN CN201520410112.4U patent/CN204703351U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106223185A (en) * | 2016-07-21 | 2016-12-14 | 中铁大桥勘测设计院集团有限公司 | There is multi-layer concrete plate combination beam and the WELDING STUDS method for designing of WELDING STUDS group |
| CN107587606A (en) * | 2017-09-25 | 2018-01-16 | 上海建工五建集团有限公司 | High performance concrete chain type combining structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151014 Termination date: 20160615 |