CN112301865A - Combined structure of UHPC and stainless steel beam and construction method thereof - Google Patents
Combined structure of UHPC and stainless steel beam and construction method thereof Download PDFInfo
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- CN112301865A CN112301865A CN202011265174.2A CN202011265174A CN112301865A CN 112301865 A CN112301865 A CN 112301865A CN 202011265174 A CN202011265174 A CN 202011265174A CN 112301865 A CN112301865 A CN 112301865A
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- uhpc
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- box girder
- pavement
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- 239000011374 ultra-high-performance concrete Substances 0.000 title claims abstract description 67
- 239000010935 stainless steel Substances 0.000 title claims abstract description 51
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 51
- 238000010276 construction Methods 0.000 title claims abstract description 21
- 238000005260 corrosion Methods 0.000 claims abstract description 11
- 239000011384 asphalt concrete Substances 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 37
- 229910000831 Steel Inorganic materials 0.000 claims description 33
- 239000010959 steel Substances 0.000 claims description 33
- 239000004567 concrete Substances 0.000 claims description 31
- 239000011380 pervious concrete Substances 0.000 claims description 22
- 239000000945 filler Substances 0.000 claims description 13
- 239000010426 asphalt Substances 0.000 claims description 11
- 230000004888 barrier function Effects 0.000 claims description 11
- 239000002131 composite material Substances 0.000 claims description 11
- 238000003466 welding Methods 0.000 claims description 9
- 239000002344 surface layer Substances 0.000 claims description 7
- 230000035699 permeability Effects 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 6
- 239000010410 layer Substances 0.000 claims description 5
- 229920006334 epoxy coating Polymers 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims description 3
- 239000004927 clay Substances 0.000 claims 1
- 230000007797 corrosion Effects 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 7
- 239000011248 coating agent Substances 0.000 abstract description 5
- 238000000576 coating method Methods 0.000 abstract description 5
- 230000009471 action Effects 0.000 abstract description 4
- 238000004880 explosion Methods 0.000 abstract description 4
- 230000035939 shock Effects 0.000 abstract description 4
- 230000002411 adverse Effects 0.000 abstract description 3
- 239000011150 reinforced concrete Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 239000012466 permeate Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
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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
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
- E01D2/04—Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
-
- 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
- E01D19/08—Damp-proof or other insulating layers; Drainage arrangements or devices ; Bridge deck surfacings
- E01D19/083—Waterproofing of bridge decks; Other insulations for bridges, e.g. thermal ; Bridge deck surfacings
-
- 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
- E01D19/08—Damp-proof or other insulating layers; Drainage arrangements or devices ; Bridge deck surfacings
- E01D19/086—Drainage arrangements or devices
-
- 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
- E01D19/10—Railings; Protectors against smoke or gases, e.g. of locomotives; Maintenance travellers; Fastening of pipes or cables to bridges
- E01D19/103—Parapets, railings ; Guard barriers or road-bridges
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention relates to the field of bridge construction, in particular to a combined structure of UHPC and a stainless steel beam, which is characterized in that: including the case roof beam, the case roof beam top includes lane road surface, lane guardrail, pavement road surface and pavement guardrail in proper order to both sides from the centre, and the case roof beam top has set firmly the rivet, and case roof beam and rivet are stainless steel, and lane road surface is from last down including asphalt concrete surface course and UHPC board in proper order. The stainless steel box girder body has the advantages of corrosion resistance, high strength, impact resistance, explosion resistance, shock resistance and the like, solves the problems of bridge maintenance and coating, and can realize maintenance-free; the bridge deck plate is connected with the stainless steel box girder body through the UHPC panel by cast-in-place, and the stainless steel box girder is provided with the stainless steel rivets, so that the UHPC panel is tightly connected with the stainless steel box girder body, the influence of adverse factors such as vibration, impact and noise under the action of wheel load is effectively reduced, and the service performance and the durability of the bridge deck plate are improved.
Description
Technical Field
The invention relates to the field of bridge construction, in particular to a combined structure of UHPC and a stainless steel beam and a construction method thereof.
Background
One kind of bridge engineering center sill, the inside is hollow, and there is the flange on upper portion both sides, similar case, therefore gets the name. The common materials are divided into two types, namely a prestressed reinforced concrete box girder and a steel box girder. The prestressed reinforced concrete box girder is constructed on site, and transverse prestress is also arranged in some cases besides longitudinal prestress; the steel box girder is generally processed in a factory and then transported to a site for installation, and has an all-steel structure and a partially reinforced concrete pavement layer. The existing reinforced concrete box girder and steel plate box girder have the problems of corrosion resistance, rust resistance and seepage prevention in use, wherein the reinforced concrete box girder has the problems of concrete falling and steel bar corrosion after long-time use, so that the strength is reduced, the steel box girder has the problems of insufficient corrosion resistance and durability, and the combination degree of a pavement structure and the steel box girder is poor, so that the strength of a steel member is insufficient; in addition, the existing sidewalk and roadway drainage adopts separate drainage or pavement centralized drainage, the scheme of separate drainage needs to arrange water collecting pipes below the sidewalk and the roadway respectively, and the drainage pipe of the roadway needs to be arranged inside the box girder, so that the box girder is easy to corrode, the durability of the box girder is affected, and the maintenance is inconvenient.
Disclosure of Invention
An object of the present invention is to solve at least the above problems, and to solve the problems of insufficient corrosion resistance, strength, impact resistance, explosion resistance and shock resistance of a steel box girder body, the problems of maintenance and coating of a bridge, and the realization of maintenance-free through a combination structure of UHPC and a stainless steel girder and a construction method thereof.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the integrated configuration of UHPC and stainless steel roof beam, its characterized in that: the box girder comprises a box girder, the top of the box girder sequentially comprises a road pavement, a road guardrail, a sidewalk pavement and a sidewalk guardrail from the middle to two sides, rivets are fixedly arranged at the top of the box girder, the box girder and the rivets are made of stainless steel, the road pavement sequentially comprises an asphalt concrete surface layer and an UHPC plate from top to bottom, the rivets are buried in the UHPC plate, and a construction joint of the UHPC plate is filled with a PUE filler.
Preferably, a waterproof layer is arranged below the UHPC board in the roadway surface.
Preferably, the carriageway guardrail comprises a permeable concrete base and a concrete barrier from bottom to top in sequence, and a plastic protective sleeve is sleeved outside the concrete barrier.
Preferably, the traffic lane guardrail passes through the rivet and is connected with the case roof beam, and the top of rivet extends to in the concrete jube, contain epoxy coating embedded steel bar in the concrete jube.
Preferably, one side of the pervious concrete base, which is close to the traffic lane, is provided with a traffic lane water guide groove, and one side of the pervious concrete base, which is close to the sidewalk, is provided with a slope.
Preferably, T-shaped steel is arranged between the UHPC plate and the pervious concrete base, the T-shaped steel is welded on the box girder, PUE fillers are filled on two sides of the T-shaped steel, and a guide slot hole is formed in the bottom of the T-shaped steel.
Preferably, the overflow pipe is embedded in the pervious concrete base, the left end face and the right end face of the overflow pipe are inclined downwards, the left end face and the right end face of the overflow pipe are provided with cover plates in a pivoted mode, the pivot is located at the top of the cover plates, the cover plates are provided with filter holes, the bottoms of the cover plates, close to the end face of one side of the traffic lane, of the overflow pipes are provided with opening plates, and an opening included angle is formed between each opening plate and the end.
Preferably, the pavement comprises a permeable asphalt pavement, the pavement and the guardrail are provided with a pavement guiding gutter, and a water collecting pipe communicated with the pavement guiding gutter is arranged below the box girder.
Preferably, the flange joint department of collector pipe is equipped with anticorrosive structure, anticorrosive structure is including setting up gasket between the flange and the sleeve of cover on locating the bolt, the sleeve is filled with light-cured daub.
The construction method of the combined structure of any one of the UHPC and the stainless steel beam is characterized by comprising the following steps of:
step a, welding stainless steel box beams in a combined mode, welding rivets at intervals on the tops of the stainless steel box beams, and welding T-shaped steel at intervals between sidewalks and roadways;
b, paving a UHPC plate on the roadway, wherein the top surface of the UHPC plate is a matte surface, and a construction joint of the UHPC plate is filled with a PUE filler;
c, installing sidewalk guardrails at the edges of the box girders;
d, sequentially pouring a pervious concrete base and a concrete partition, embedding an overflow pipe in the pervious concrete base, wherein the strength of the pervious concrete base is C30-C40, and the water permeability is 20-30 mm/s;
step e, filling PUE fillers on two sides of the T-shaped steel between the UHPC plate and the pervious concrete base, and paving an asphalt concrete surface layer above the UHPC plate, wherein the drainage gradient is 2% -4%;
f, paving a permeable asphalt pavement on the sidewalk, wherein the drainage gradient is 2-4%, the strength of the permeable asphalt pavement is C20-C30, the water permeability is 30-40mm/s, and a sidewalk drainage groove is reserved;
and g, mounting plastic protective sleeves outside the concrete barriers, mounting cover plates at the left end and the right end of the overflow pipe, mounting a water collecting pipe at the bottom of the box girder, and paving a floor drain in a sidewalk drainage channel.
From the above description, the combination structure of UHPC and stainless steel beam and the construction method thereof according to the present invention have the following advantages: the bridge deck composite structure adopts the stainless steel box girder body and is used for bearing the stress of the bridge; the stainless steel box girder body has the advantages of corrosion resistance, high strength, impact resistance, explosion resistance, shock resistance and the like, solves the problems of bridge maintenance and coating, and can realize maintenance-free; the bridge deck is connected with the stainless steel box girder body by the UHPC deck through cast-in-place, and the stainless steel box girder is provided with the stainless steel rivets, so that the UHPC deck is tightly connected with the stainless steel box girder body, the influence of adverse factors such as vibration, impact and noise under the action of wheel load is effectively reduced, and the service performance and the durability of the bridge deck are improved; the UHPC panel and the stainless steel box girder in the member have ultrahigh strength and durability, are used for making up the problem of insufficient rigidity of the steel member, simultaneously overcome the construction difficulties of increased bearing stress, transportation and hoisting and the like of the member caused by the self-weight problem of common concrete, and have the main innovation points of large span, light weight, assembly, good durability and maintenance-free; ponding in the lane drains into the collector pipe through the concrete base that permeates water of lane guardrail and the bituminous paving that permeates water on pavement surface, and the collector pipe sets up in the pavement below, simple structure, and the maintenance is convenient, and drainage speed is timely, is difficult for being blockked up by bridge floor rubbish.
Drawings
FIG. 1 is a structural sectional view of a composite structure of UHPC and a stainless steel beam according to the present invention.
Fig. 2 is an enlarged view of a portion a of fig. 1.
Fig. 3 is an enlarged view of a portion b of fig. 1.
Fig. 4 is a sectional view of the traffic lane guard rail.
Fig. 5 is a schematic view of an overflow pipe and a cover plate.
Fig. 6 is an enlarged view of a portion c of fig. 1.
Fig. 7 is a schematic view of a corrosion prevention structure of the water collecting pipe.
Detailed Description
The invention is further described below by means of specific embodiments.
The present invention will be further described with reference to the following detailed description so that the technical means, the creation features, the achievement purposes and the effects of the present invention can be easily understood.
As shown in figure 1, the combined structure of the UHPC and the stainless steel beam comprises a box girder 1, wherein the top of the box girder 1 sequentially comprises a traffic lane road surface 2, a traffic lane guardrail 3, a pavement road surface 4 and a pavement guardrail 5 from the middle to two sides.
As shown in fig. 2, the rivet 11 is fixedly arranged at the top of the box girder 1, the box girder 1 and the rivet 11 are made of stainless steel, the roadway surface 2 sequentially comprises an asphalt concrete surface layer 21 and a UHPC plate 22 from top to bottom, the rivet 11 is embedded in the UHPC plate 22, and a construction joint of the UHPC plate 22 is filled with PUE filler 23.
The stainless steel box girder 1 has the advantages of corrosion resistance, high strength, impact resistance, explosion resistance, shock resistance and the like, solves the problems of bridge maintenance and coating, can realize maintenance-free, is connected with the stainless steel box girder 1 by a UHPC panel through cast-in-place, is provided with the stainless steel rivets 11, realizes the tight connection between the UHPC panel and the stainless steel box girder 1, effectively reduces the influence of adverse factors such as vibration, impact, noise and the like under the action of wheel load, and improves the service performance and the durability. The UHPC panel and the stainless steel box girder 1 in the member have ultrahigh strength and durability, are used for making up the problem of insufficient rigidity of the steel member, simultaneously overcome the construction difficulties of increased bearing stress, transportation, hoisting and the like of the member caused by the self-weight problem of common concrete, and have the main innovation points of large span, light weight, assembly, good durability and no maintenance.
The stainless steel box girder 1 is processed and formed in a factory according to the designed size in sections; after the UHPC panel is assembled and formed on the stainless steel box girder 1, the UHPC panel is cast and formed on site; and pouring the UHPC panel in different bins, wherein the top surface of the UHPC panel is a non-smooth rough surface, and the upper part of the UHPC panel is directly paved with an asphalt concrete surface layer 21.
A waterproof layer is arranged below the UHPC plate 22 in the roadway surface 2 and the waterproof layer is made of the existing waterproof coating.
As shown in fig. 3, the traffic lane guardrail 3 sequentially comprises a permeable concrete base 31 and a concrete barrier 32 from bottom to top, a plastic protective sleeve 33 is sleeved outside the concrete barrier 32, and the permeable concrete base 31 is used for guiding accumulated water on the traffic lane pavement 2 to a pedestrian path.
Lane guardrail 3 passes through rivet 11 and 1 connection of box girder, and the top of rivet 11 extends to in the concrete rail 32 for concrete rail 32, the concrete base 31 that permeates water are connected closely with stainless steel box girder 1, contain epoxy coating embedded steel bar 34 in the concrete rail 32.
The permeable concrete base 31 is provided with a roadway water guiding groove 35 at one side close to the roadway, a slope is arranged at one side close to the sidewalk, and the roadway water guiding groove 35 is used for storing water and increasing the upstream surface of the permeable concrete base 31.
T-shaped steel 24 is arranged between the UHPC plate 22 and the pervious concrete base 31, the T-shaped steel 24 is welded on the box girder 1, PUE fillers 23 are filled on two sides of the T-shaped steel 24, a guide slot hole 241 is formed in the bottom of the T-shaped steel 24 and used for draining water, the T-shaped steel 24 is used as a boundary of a roadway and a pedestrian path, the pedestrian path and the roadway are prevented from being extruded mutually, the fillers on two sides are used as expansion joints, and the cracking of a panel structure can be reduced.
As shown in fig. 4, an overflow pipe 35 is pre-buried in the pervious concrete base 31, the left and right end faces of the overflow pipe 35 are inclined downwards, the left and right end faces are pivotally provided with cover plates 36, the pivot is located at the top of the cover plate 36, the cover plate 36 is provided with filter holes, the bottom of the cover plate 36 on the end face of one side of the overflow pipe 35 close to the traffic lane is provided with an opening plate 37, an opening included angle is formed between the opening plate 37 and the end face of the overflow pipe 35, and the included angle is 10-30 degrees.
The sidewalk pavement 4 comprises a permeable asphalt pavement 41, the sidewalk pavement 4 and the sidewalk guardrail 5 are provided with sidewalk water guide grooves 43, and water collecting pipes 42 communicated with the sidewalk water guide grooves 43 are arranged below the box girders 1.
As shown in fig. 7, the flange joint of the water collecting pipe 42 is provided with an anti-corrosion structure, the anti-corrosion structure comprises a gasket 421 arranged between the flanges and a sleeve 422 sleeved on the bolt, the sleeve 422 is filled with light-cured daub 423, the light-cured daub 423 is made of a light-cured daub 423 material commonly found in the market, and the sleeve 422 is made of a polyurethane material.
The accumulated water removing method comprises the following steps: the accumulated water in the traffic lane is discharged into a water collecting pipe 42 through the permeable concrete base 31 of the traffic lane guardrail 3 and the permeable asphalt pavement 41 of the pavement 4; when the accumulated water height is higher than the opening plate 37 at the bottom of the cover plate 36 of the overflow pipe 35, and the drainage speed of the water filtering hole of the cover plate 36 is too low (the accumulated water is more or the water filtering hole is blocked), the cover plate 36 close to one side of the traffic lane is opened upwards under the action of the upward impact force and buoyancy force of the water flow, at the moment, the water is directly drained into the sidewalk through the overflow pipe 35, the accumulated water is prevented, and when sundries in the overflow pipe 35 are cleaned at ordinary times, only a cleaning tool is needed to open the cover plate 36 from one side of the traffic lane to drain the.
The construction method of the combined structure of the UHPC and the stainless steel beam comprises the following steps:
step a, welding a stainless steel box beam 1 in a combined mode, welding rivets 11 at intervals on the top of the stainless steel box beam 1, and welding T-shaped steel 24 at intervals between a sidewalk and a roadway;
b, paving the UHPC board 22 on the roadway, wherein the construction method of the UHPC board 22 (ultra-high performance concrete) refers to the prior construction technology, the top surface of the UHPC board 22 is a rough surface, and a construction joint of the UHPC board 22 is filled with a PUE filler 23;
c, installing a sidewalk guardrail 5 at the edge of the box girder 1;
d, sequentially pouring a pervious concrete base 31 and a concrete partition 32, embedding an overflow pipe 35 in the pervious concrete base 31, wherein the strength of the pervious concrete base 31 is C30-C40, and the water permeability is 20-30 mm/s;
step e, filling PUE fillers 23 on two sides of the T-shaped steel 24 between the UHPC plate 22 and the pervious concrete base 31, and paving an asphalt concrete surface layer 21 above the UHPC plate 22, wherein the drainage gradient is 2-4%;
f, paving a permeable asphalt pavement 41 on the sidewalk, wherein the drainage gradient is 2-4%, the strength of the permeable asphalt pavement 41 is C20-C30, the water permeability is 30-40mm/s, and reserving a sidewalk drainage channel, wherein the paving method of the permeable asphalt pavement 41 refers to the prior construction technology;
and g, installing plastic protective sleeves 33 outside the concrete barriers 32, installing cover plates 36 at the left end and the right end of the overflow pipe 35, installing a water collecting pipe 42 at the bottom of the box girder 1, and paving a floor drain in a drainage channel of a sidewalk.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, which indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, should not be construed as limiting the present invention, and what is not described in detail in the present specification is prior art and is known to those skilled in the art.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly, e.g., as meaning fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed; the type of the electrical appliance provided by the invention is only used for reference. For those skilled in the art, different types of electrical appliances with the same function can be replaced according to actual use conditions, and for those skilled in the art, the specific meaning of the above terms in the present invention can be understood in specific situations.
The above description is only a few specific embodiments of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modifications made by the design concept should fall within the scope of the present invention.
Claims (10)
- The composite structure of the UHPC and the stainless steel beam is characterized in that: the box girder comprises a box girder, the top of the box girder sequentially comprises a road pavement, a road guardrail, a sidewalk pavement and a sidewalk guardrail from the middle to two sides, rivets are fixedly arranged at the top of the box girder, the box girder and the rivets are made of stainless steel, the road pavement sequentially comprises an asphalt concrete surface layer and an UHPC plate from top to bottom, the rivets are buried in the UHPC plate, and a construction joint of the UHPC plate is filled with a PUE filler.
- 2. A composite structure of UHPC and stainless steel beam according to claim 1, characterized in that: and a waterproof layer is arranged below the UHPC board in the roadway surface.
- 3. A composite structure of UHPC and stainless steel beam according to claim 1, characterized in that: the driveway guardrail comprises a permeable concrete base and a concrete barrier from bottom to top in sequence, and a plastic protective sleeve is sleeved outside the concrete barrier.
- 4. A composite structure of UHPC and stainless steel beam according to claim 3, characterized in that: the driveway guardrail is connected with the box girder through the rivet, the top of the rivet extends into the concrete barrier, and the concrete barrier contains epoxy coating embedded steel bars.
- 5. A composite structure of UHPC and stainless steel beam according to claim 3, characterized in that: one side of the pervious concrete base, which is close to the traffic lane, is provided with a traffic lane water guide groove, and one side of the pervious concrete base, which is close to the traffic lane, is provided with a slope.
- 6. A composite structure of UHPC and stainless steel beam according to claim 3, characterized in that: t-shaped steel is arranged between the UHPC plate and the pervious concrete base, the T-shaped steel is welded on the box girder, PUE fillers are filled on two sides of the T-shaped steel, and a guide slot hole is formed in the bottom of the T-shaped steel.
- 7. A composite structure of UHPC and stainless steel beam according to claim 3, characterized in that: the overflow pipe is embedded in the pervious concrete base, the left end face and the right end face of the overflow pipe are inclined downwards, the left end face and the right end face of the overflow pipe are provided with cover plates in a pivoted mode, the pivots are located at the top of the cover plates, filter holes are formed in the cover plates, the bottom of the cover plate, close to one side end face of a traffic lane, of the overflow pipe is provided with an opening plate, and an opening included angle is formed between the opening plate and the end.
- 8. A composite structure of UHPC and stainless steel beam according to claim 1, characterized in that: the pavement comprises a permeable asphalt pavement, the pavement and a guardrail are provided with a pavement guiding gutter, and a water collecting pipe communicated with the pavement guiding gutter is arranged below the box girder.
- 9. A composite structure of UHPC and stainless steel beam according to claim 1, characterized in that: the flange joint department of collector pipe is equipped with anti-corrosion structure, anti-corrosion structure is including setting up gasket between the flange and the sleeve of cover on locating the bolt, the sleeve is filled with light-cured clay.
- 10. The construction method of a UHPC and stainless steel beam combination structure according to any one of claims 1 to 9, comprising the steps of:step a, welding stainless steel box beams in a combined mode, welding rivets at intervals on the tops of the stainless steel box beams, and welding T-shaped steel at intervals between sidewalks and roadways;b, paving a UHPC plate on the roadway, wherein the top surface of the UHPC plate is a matte surface, and a construction joint of the UHPC plate is filled with a PUE filler;c, installing sidewalk guardrails at the edges of the box girders;d, sequentially pouring a pervious concrete base and a concrete partition, embedding an overflow pipe in the pervious concrete base, wherein the strength of the pervious concrete base is C30-C40, and the water permeability is 20-30 mm/s;step e, filling PUE fillers on two sides of the T-shaped steel between the UHPC plate and the pervious concrete base, and paving an asphalt concrete surface layer above the UHPC plate, wherein the drainage gradient is 2% -4%;f, paving a permeable asphalt pavement on the sidewalk, wherein the drainage gradient is 2-4%, the strength of the permeable asphalt pavement is C20-C30, the water permeability is 30-40mm/s, and a sidewalk drainage groove is reserved;and g, mounting plastic protective sleeves outside the concrete barriers, mounting cover plates at the left end and the right end of the overflow pipe, mounting a water collecting pipe at the bottom of the box girder, and paving a floor drain in a sidewalk drainage channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011265174.2A CN112301865A (en) | 2020-11-13 | 2020-11-13 | Combined structure of UHPC and stainless steel beam and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011265174.2A CN112301865A (en) | 2020-11-13 | 2020-11-13 | Combined structure of UHPC and stainless steel beam and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112301865A true CN112301865A (en) | 2021-02-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011265174.2A Withdrawn CN112301865A (en) | 2020-11-13 | 2020-11-13 | Combined structure of UHPC and stainless steel beam and construction method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN112301865A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113818326A (en) * | 2021-09-18 | 2021-12-21 | 深圳大学 | Full-assembled NHNR shear-connected steel-concrete composite beam |
-
2020
- 2020-11-13 CN CN202011265174.2A patent/CN112301865A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113818326A (en) * | 2021-09-18 | 2021-12-21 | 深圳大学 | Full-assembled NHNR shear-connected steel-concrete composite beam |
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Application publication date: 20210202 |
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