CN201704626U - Steel and ultra-high-property-concrete integrated bridge deck structure - Google Patents
Steel and ultra-high-property-concrete integrated bridge deck structure Download PDFInfo
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- CN201704626U CN201704626U CN2010202428730U CN201020242873U CN201704626U CN 201704626 U CN201704626 U CN 201704626U CN 2010202428730 U CN2010202428730 U CN 2010202428730U CN 201020242873 U CN201020242873 U CN 201020242873U CN 201704626 U CN201704626 U CN 201704626U
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Abstract
The utility model relates to a deck structure of a steel bridge, and discloses a steel and ultra-high-property-concrete integrated bridge deck structure. The bridge deck structure comprises a steel bridge deck; the steel bridge deck is covered with an ultra-high-property-concrete layer; the ultra-high-property-concrete layer is covered with a bridge deck pavement layer; and the ultra-high-property-concrete layer is internally configured with steel bars. The steel and ultra-high-property-concrete integrated bridge deck structure has the advantages of low building height, great rigidity, good adhesion between every two combination layers, good durability, good anti-fatigue property, small impact from vehicles, and the like.
Description
Technical field
The utility model relates to a kind of architectural detail of bridge construction, relates in particular to a kind of bridge deck structure of steel bridge.
Background technology
Orthotropic steel bridge deck adopted in Germany's initiative in 1948, and this light-duty steel bridge face has become the first-selected bridge floor pattern of steel bridge (especially super-huge bridge) over 60 years.Through the engineering constructions of decades practice, the orthotropic steel bridge deck scheme of mating formation mainly develops into following four classes at present, that is: (1) hot mixed asphaltic concrete or modification dense-graded asphalt concrete scheme; (2) high temperature mix cast asphalt concrete scheme; (3) bitumastic concrete scheme; (4) epoxy resin asphalt concrete scheme.Existing conventional steel bridge bridge deck structure form as shown in Figure 1, existing four class steel bridge deck asphalt concrete bridge deck pavements cost an arm and a leg, a shortcoming that self can't overcome is all arranged simultaneously, be that bituminous concrete bridge deck pavement 3 is different with the coefficient of expansion of steel bridge deck 1, the two degree of adhesion is not firm, if bridge location place summer in the winter temperature difference is bigger, under the vehicular load effect, bituminous concrete bridge deck pavement 3 is easy to take place relative slippage with steel bridge deck 1, thereby causes bridge deck pavement 3 diseases such as cracking, rut, heap soil or fertilizer over and around the roots bag to occur.
Because orthotropic steel bridge deck is light-duty bridge floor, panel is thinner, adding that asphalt concrete pavement layer destroys causes pavement roughness, thereby cause the percussion of vehicular load easily, make and drive a vehicle in high density, especially under the vehicular load effect that overloads serious, the problem of fatigue damage of panel and vertical rib weld becomes very outstanding.For the problem of fatigue damage of orthotropic steel bridge deck, existing thinking of dealing with problems is: strengthen plate thickness, adopt large-scale vertical rib, rib is apart from increase, and the spacing of diaphragm (cross rib) also can increase like this, reduces the weld seam of rib and panel in length and breadth; Improve detail structure, and the strict welding manufacturing process of regulation, to reduce the stress concentration phenomenon as far as possible.This thinking is to be conceived to improve the duty of bridge deck by improving physical dimension, though can play certain effect, but can not fundamentally solve the problem of fatigue damage of panel and vertical rib weld, and cost is also than higher, simultaneously, increase bridge deck thickness and can not fundamentally solve the flimsy problem of layer of mating formation.
The utility model content
The technical problems to be solved in the utility model is to overcome the deficiencies in the prior art, provides that a kind of building height is little, rigidity is big, good, the good endurance of adhesive property between each combination layer, anti-fatigue performance is good, the vehicular impact effect is little steel and ultra-high performance concrete combined bridge deck structure.
For solving the problems of the technologies described above, the technical scheme that the utility model proposes is a kind of steel and ultra-high performance concrete combined bridge deck structure, described bridge deck structure comprises steel bridge deck, described steel bridge deck top is covered with the ultra-high performance concrete layer, and described ultra-high performance concrete layer top is covered with bridge deck pavement; Is furnished with reinforcing bar in the described ultra-high performance concrete layer.This technical scheme that the utility model proposes is in conjunction with utilization combining structure bridge floor thought and ultra-high performance concrete technology, between existing Orthotropic Steel Bridge Deck and bituminous concrete bridge deck pavement, increase slim ultra-high performance concrete layer, this not only can effectively be avoided steel bridge deck and bridge deck pavement to be in disadvantageous distortion and stress state, and can effectively solve layer cracking of mating formation that steel bridge deck occurs in using easily, slippage, panel and the problems such as fatigue failure of rib in length and breadth.
In the above-mentioned steel and ultra-high performance concrete combined bridge deck structure, described ultra-high performance concrete layer is meant to be built by ultra-high performance concrete and forms.Ultra-high performance concrete in this area is a proprietary name, in the utility model, generally be meant and have superhigh intensity, high ductility, high tenacity, high workability, good endurance and can be applicable to the concrete that steel bridge deck is mated formation, it is relative ordinary concrete, the concrete material that the another kind of mechanical property of high performance concrete is excellent more, RPC for example, the very-high performance fibre reinforced concrete, the slip casting fibrous concrete, closely knit arrangement of reinforcement composite material, engineering latex composite material etc., but be preferably RPC, very-high performance fibre reinforced concrete or slip casting fibrous concrete.
In the technique scheme, the bonding surface of steel bridge deck and ultra-high performance concrete layer can be plane or matsurface, but as the further improvement to above-mentioned steel and ultra-high performance concrete combined bridge deck structure, the bonding surface of described steel bridge deck and ultra-high performance concrete layer preferably is arranged to the shearing resistance structure or shear connector is set.Described shearing resistance structure is preferably a coarse bonding surface of a sags and crests configuration or a concavo-convex slot type bonding surface.Described shear connector is preferably peg or PBL shear connector.Even shearing resistance structure and shear connector can be provided with simultaneously.
In the technique scheme, the bonding surface of described ultra-high performance concrete layer and bridge deck pavement can be natural matsurface, but preferably is arranged to the anti-shear ability of concavo-convex slot type bonding surface with further increase interlayer.
In the technique scheme, described bridge deck pavement can be the bridge of all kinds of bituminous concrete bridge deck pavements or the other materials layer of mating formation, in other words, the technical solution of the utility model has compliance widely, can not have influence on the technique effect of technical solutions of the utility model because of the materials variances of bridge deck pavement.
Compared with prior art, the utility model is provided with the ultra-high performance concrete layer on steel bridge deck (especially Orthotropic Steel Bridge Deck), on the ultra-high performance concrete layer, lay the bridge deck pavement of bituminous concrete and so on again, existing conventional steel bridge face is transformed into steel-ultra-high performance concrete combined type bridge floor, this has changed the form of structure of steel bridge deck and the duty of deck paving greatly, and this also makes the technical solution of the utility model possess following remarkable advantages:
At first, steel and ultra-high performance concrete combined bridge deck structure of the present utility model is stressed jointly, steel bridge deck and the stress of rib under the vehicle wheel load in length and breadth thereof have been reduced, reduced weld fatigue cracking risk between steel bridge deck and vertical rib and dividing plate significantly, and indexs such as the stress of ultra-high performance concrete layer self, distortion can satisfy all and the requirement of steel work collaborative work;
Secondly, steel and ultra-high performance concrete combined bridge deck structure of the present utility model has increased the rigidity of bridge deck, has improved the adhesive property of bituminous concrete bridge deck pavement and bridge deck, has improved the cracking resistance and the endurance quality of bridge deck pavement; Especially the shear Design on the utility model combined bridge deck structure basis, can further reduce the relative slippage between bridge deck pavement and the steel bridge deck, reduced the heap soil or fertilizer over and around the roots bag of bridge deck pavement, reduce the percussion under the vehicular load effect, thereby further improved the endurance quality of bridge deck pavement;
In addition, what the ultra-high performance concrete layer in the technical solutions of the utility model was selected is the ultra-high performance concrete that is applicable to steel bridge deck, not only be easy to constructing operation, and can guarantee density, improved the durability of steel bridge deck, and its deck is thinner, the weight of also not obvious on the whole increase bridge floor dead load.
To sum up, advantages such as steel and ultra-high performance concrete combined bridge deck structure of the present utility model has that building height is little, rigidity is big, good, the good endurance of adhesive property between each combination layer, anti-fatigue performance is good, the vehicular impact effect is little, have great practical value and good economic benefit, especially build and have broad application prospects in the construction of large-scale, super-huge steel bridge.
Description of drawings
Fig. 1 is the structural representation (cross-sectional drawing) of the orthotropic steel box girder bridge face of existing routine.
Fig. 2 is the structural representation (cross-sectional drawing) of the steel and ultra-high performance concrete combined bridge deck structure of the utility model embodiment 1.
Fig. 3 is the structural representation (skiagraph) of the steel and ultra-high performance concrete combined bridge deck structure of the utility model embodiment 2.
Fig. 4 is the structural representation (skiagraph) of the steel and ultra-high performance concrete combined bridge deck structure of the utility model embodiment 3.
Fig. 5 is the structural representation (cross-sectional drawing) of the steel and ultra-high performance concrete combined bridge deck structure of the utility model embodiment 3.
Fig. 6 is the structural representation (skiagraph) of the steel and ultra-high performance concrete combined bridge deck structure of the utility model embodiment 4.
Fig. 7 is the structural representation (skiagraph) of the steel and ultra-high performance concrete combined bridge deck structure of the utility model embodiment 5.
Marginal data
1, steel bridge deck; 2, ultra-high performance concrete layer; 3, bridge deck pavement; 4, peg; 5, PBL shear connector; 6, concavo-convex slot type bonding surface; 7, reinforcing bar.
The specific embodiment
A kind of steel and ultra-high performance concrete combined bridge deck structure of the present utility model as shown in Figure 2, this bridge deck structure comprises steel bridge deck 1, steel bridge deck 1 top is covered with ultra-high performance concrete layer 2, ultra-high performance concrete layer 2 top are covered with bridge deck pavement 3, are furnished with reinforcing bar 7 in the ultra-high performance concrete layer 2.Ultra-high performance concrete layer 2 is to be built by ultra-high performance concrete to form, and the ultra-high performance concrete that present embodiment is selected for use is a RPC.Bonding surface place at steel bridge deck 1 and ultra-high performance concrete layer 2 is provided with the peg 4 that shearing resistance is used.Bonding surface between steel bridge deck 1 and the ultra-high performance concrete layer 2 is the plane, and the bonding surface between ultra-high performance concrete layer 2 and the bridge deck pavement 3 is the nature matsurface, and what bridge deck pavement 3 adopted is the plain asphalt concrete material.
The construction sequence of the steel and ultra-high performance concrete combined bridge deck structure of above-mentioned present embodiment is:
(1) the welding production steel bridge deck 1, and the end face of steel bridge deck 1 is the plane, and its end face is done anticorrosive coating, and evenly welds the peg 4 that shearing resistance is used at its end face;
(2) reinforcing bar 7 in the laying ultra-high performance concrete layer is prepared ultra-high performance concrete, and the ultra-high performance concrete for preparing is built on steel bridge deck 1, forms ultra-high performance concrete layer 2, and the end face of ultra-high performance concrete layer 2 is the nature matsurface;
(3) the ultra-high performance concrete layer after building 2 is carried out maintenance;
(4) treat that mechanical index such as ultra-high performance concrete layer intensity reaches designing requirement after, the asphalt concrete material of preparation bridge deck pavement 3 usefulness covers asphalt concrete material then on the good ultra-high performance concrete layer 2 of maintenance;
(5) carry out the maintenance of bridge deck pavement 3 at last, finish the construction of whole steel and ultra-high performance concrete combined bridge deck structure.
Embodiment 2:
A kind of steel and ultra-high performance concrete combined bridge deck structure of the present utility model as shown in Figure 3, this bridge deck structure comprises steel bridge deck 1, steel bridge deck 1 top is covered with ultra-high performance concrete layer 2, ultra-high performance concrete layer 2 top are covered with bridge deck pavement 3, are furnished with reinforcing bar 7 in the ultra-high performance concrete layer 2.Ultra-high performance concrete layer 2 is to be built by ultra-high performance concrete to form, and the ultra-high performance concrete that present embodiment is selected for use is a RPC.Steel bridge deck 1 is set to concavo-convex slot type bonding surface 6 with the bonding surface of ultra-high performance concrete layer 2.Bonding surface between ultra-high performance concrete layer 2 and the bridge deck pavement 3 is the nature matsurface, and what bridge deck pavement 3 adopted is the plain asphalt concrete material.
The construction sequence of the steel and ultra-high performance concrete combined bridge deck structure of above-mentioned present embodiment is:
(1) the welding production steel bridge deck 1, and the end face of steel bridge deck 1 is with ribbing of a concavo-convex slot type, and its end face is done anticorrosive coating;
(2) reinforcing bar 7 in the laying ultra-high performance concrete layer is prepared ultra-high performance concrete, and the ultra-high performance concrete for preparing is built on steel bridge deck 1, forms ultra-high performance concrete layer 2, and the end face of ultra-high performance concrete layer 2 is the nature matsurface;
(3) the ultra-high performance concrete layer after building 2 is carried out maintenance;
(4) treat that mechanical index such as ultra-high performance concrete layer intensity reaches designing requirement after, the asphalt concrete material of preparation bridge deck pavement 3 usefulness covers asphalt concrete material then on the good ultra-high performance concrete layer 2 of maintenance;
(5) carry out the maintenance of bridge deck pavement 3 at last, finish the construction of whole steel and ultra-high performance concrete combined bridge deck structure.
A kind of as Fig. 4, steel and ultra-high performance concrete combined bridge deck structure of the present utility model shown in Figure 5, this bridge deck structure comprises steel bridge deck 1, steel bridge deck 1 top is covered with ultra-high performance concrete layer 2, ultra-high performance concrete layer 2 top are covered with bridge deck pavement 3, are furnished with reinforcing bar 7 in the ultra-high performance concrete layer 2.Ultra-high performance concrete layer 2 is to be built by ultra-high performance concrete to form, and the ultra-high performance concrete that present embodiment is selected for use is a RPC.Bonding surface place at steel bridge deck 1 and ultra-high performance concrete layer 2 is provided with the PBL shear connector 5 that shearing resistance is used.Bonding surface between steel bridge deck 1 and the ultra-high performance concrete layer 2 is the plane, and the bonding surface between ultra-high performance concrete layer 2 and the bridge deck pavement 3 is the nature matsurface, and what bridge deck pavement 3 adopted is the plain asphalt concrete material.
The construction sequence of the steel and ultra-high performance concrete combined bridge deck structure of above-mentioned present embodiment is:
(1) the welding production steel bridge deck 1, and the end face of steel bridge deck 1 is the plane, and its end face is done anticorrosive coating, and evenly welds the PBL shear connector 5 that shearing resistance is used at its end face;
(2) reinforcing bar 7 in the laying ultra-high performance concrete layer is prepared ultra-high performance concrete, and the ultra-high performance concrete for preparing is built on steel bridge deck 1, forms ultra-high performance concrete layer 2, and the end face of ultra-high performance concrete layer 2 is the nature matsurface;
(3) the ultra-high performance concrete layer after building 2 is carried out maintenance;
(4) treat that mechanical index such as ultra-high performance concrete layer intensity reaches designing requirement after, the asphalt concrete material of preparation bridge deck pavement 3 usefulness covers asphalt concrete material then on the good ultra-high performance concrete layer 2 of maintenance;
(5) carry out the maintenance of bridge deck pavement 3 at last, finish the construction of whole steel and ultra-high performance concrete combined bridge deck structure.
Embodiment 4
A kind of steel and ultra-high performance concrete combined bridge deck structure of the present utility model as shown in Figure 6, this bridge deck structure comprises steel bridge deck 1, steel bridge deck 1 top is covered with ultra-high performance concrete layer 2, ultra-high performance concrete layer 2 top are covered with bridge deck pavement 3, are furnished with reinforcing bar 7 in the ultra-high performance concrete layer 2.Ultra-high performance concrete layer 2 is to be built by ultra-high performance concrete to form, and the ultra-high performance concrete that present embodiment is selected for use is a RPC.Steel bridge deck 1 is set to concavo-convex slot type bonding surface 6 with the bonding surface of ultra-high performance concrete layer 2, bonding surface between ultra-high performance concrete layer 2 and the bridge deck pavement 3 is set to concavo-convex slot type bonding surface 6 equally, and what bridge deck pavement 3 adopted is the plain asphalt concrete material.
The construction sequence of the steel and ultra-high performance concrete combined bridge deck structure of above-mentioned present embodiment is:
(1) the welding production steel bridge deck 1, and the end face of steel bridge deck 1 is with ribbing of a concavo-convex slot type;
(2) reinforcing bar 7 in the laying ultra-high performance concrete layer, the preparation ultra-high performance concrete, and the ultra-high performance concrete for preparing built on steel bridge deck 1, forming ultra-high performance concrete layer 2, the end face of ultra-high performance concrete layer 2 is set to ribbing of concavo-convex slot type equally;
(3) the ultra-high performance concrete layer after building 2 is carried out maintenance;
(4) treat that mechanical index such as ultra-high performance concrete layer intensity reaches designing requirement after, the asphalt concrete material of preparation bridge deck pavement 3 usefulness covers asphalt concrete material then on the good ultra-high performance concrete layer 2 of maintenance;
(5) carry out the maintenance of bridge deck pavement 3 at last, finish the construction of whole steel and ultra-high performance concrete combined bridge deck structure.
A kind of steel and ultra-high performance concrete combined bridge deck structure of the present utility model as shown in Figure 7, this bridge deck structure comprises steel bridge deck 1, steel bridge deck 1 top is covered with ultra-high performance concrete layer 2, ultra-high performance concrete layer 2 top are covered with bridge deck pavement 3, are furnished with reinforcing bar 7 in the ultra-high performance concrete layer 2.Ultra-high performance concrete layer 2 is to be built by ultra-high performance concrete to form, and the ultra-high performance concrete that present embodiment is selected for use is a RPC.Steel bridge deck 1 is the plane with the bonding surface of ultra-high performance concrete layer 2, and the bonding surface between ultra-high performance concrete layer 2 and the bridge deck pavement 3 is set to concavo-convex slot type bonding surface 6, and what bridge deck pavement 3 adopted is the plain asphalt concrete material.
The construction sequence of the steel and ultra-high performance concrete combined bridge deck structure of above-mentioned present embodiment is:
(1) the welding production steel bridge deck 1, and the end face of steel bridge deck 1 is the plane, and its end face is done anticorrosive coating;
(2) reinforcing bar 7 in the laying ultra-high performance concrete layer, the preparation ultra-high performance concrete, and the ultra-high performance concrete for preparing built on steel bridge deck 1, forming ultra-high performance concrete layer 2, the end face of ultra-high performance concrete layer 2 is set to ribbing of concavo-convex slot type;
(3) the ultra-high performance concrete layer after building 2 is carried out maintenance;
(4) treat that mechanical index such as ultra-high performance concrete layer intensity reaches designing requirement after, the asphalt concrete material of preparation bridge deck pavement 3 usefulness covers asphalt concrete material then on the good ultra-high performance concrete layer 2 of maintenance;
(5) carry out the maintenance of bridge deck pavement 3 at last, finish the construction of whole steel and ultra-high performance concrete combined bridge deck structure.
Claims (6)
1. steel and ultra-high performance concrete combined bridge deck structure, described bridge deck structure comprises steel bridge deck, it is characterized in that: described steel bridge deck top is covered with the ultra-high performance concrete layer, and described ultra-high performance concrete layer top is covered with bridge deck pavement; Is furnished with reinforcing bar in the described ultra-high performance concrete layer.
2. steel and ultra-high performance concrete combined bridge deck structure according to claim 1, it is characterized in that: described ultra-high performance concrete layer is to be built by ultra-high performance concrete to form, and described ultra-high performance concrete is RPC, very-high performance fibre reinforced concrete, slip casting fibrous concrete, closely knit arrangement of reinforcement composite material or engineering latex composite material.
3. steel and ultra-high performance concrete combined bridge deck structure according to claim 1 and 2 is characterized in that: the bonding surface of described steel bridge deck and ultra-high performance concrete layer is provided with the shearing resistance structure or shear connector is set.
4. steel and ultra-high performance concrete combined bridge deck structure according to claim 3 is characterized in that: described shearing resistance is configured to the coarse bonding surface of a sags and crests configuration or is a concavo-convex slot type bonding surface.
5. steel and ultra-high performance concrete combined bridge deck structure according to claim 3 is characterized in that: described shear connector is peg or PBL shear connector.
6. steel and ultra-high performance concrete combined bridge deck structure according to claim 1 and 2 is characterized in that: the bonding surface of described ultra-high performance concrete layer and bridge deck pavement is the nature matsurface or is set to concavo-convex slot type bonding surface.
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| CN2010202428730U CN201704626U (en) | 2010-06-30 | 2010-06-30 | Steel and ultra-high-property-concrete integrated bridge deck structure |
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| CN2010202428730U CN201704626U (en) | 2010-06-30 | 2010-06-30 | Steel and ultra-high-property-concrete integrated bridge deck structure |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858052A (en) * | 2010-06-30 | 2010-10-13 | 湖南大学 | Steel and ultra-high performance concrete combined bridge deck structure |
| CN102337723A (en) * | 2011-08-05 | 2012-02-01 | 中国神华能源股份有限公司 | Bridge |
| CN102359057A (en) * | 2011-08-05 | 2012-02-22 | 中国神华能源股份有限公司 | Bridge |
| CN102359066A (en) * | 2011-08-05 | 2012-02-22 | 中国神华能源股份有限公司 | Bridge |
| CN104343203A (en) * | 2014-11-04 | 2015-02-11 | 福州大学 | Novel combined beam structure based on steel-ultra-high property concrete |
| CN104594192A (en) * | 2014-12-03 | 2015-05-06 | 华东交通大学 | Composite bridge deck slab of gradient structure |
| CN105064208A (en) * | 2015-08-06 | 2015-11-18 | 福州大学 | Bridge deck structure composed of prefabricated UHPC (Ultra High Performance Concrete) slabs and steel bridge deck and construction method thereof |
| CN107059529A (en) * | 2017-01-16 | 2017-08-18 | 湖南大学 | Embedding stone structure and construction method between ultra-high performance concrete surface and upper layer |
| CN107881912A (en) * | 2017-11-03 | 2018-04-06 | 内蒙古工业大学 | Containing buffer layer, rigid layer, water-proof antifriction layer assembled steel bridge face structure and construction method |
| CN110630030A (en) * | 2019-09-17 | 2019-12-31 | 湖南大学 | P-UHPC reinforcing device for reinforced concrete structure and construction method thereof |
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2010
- 2010-06-30 CN CN2010202428730U patent/CN201704626U/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858052A (en) * | 2010-06-30 | 2010-10-13 | 湖南大学 | Steel and ultra-high performance concrete combined bridge deck structure |
| CN102337723A (en) * | 2011-08-05 | 2012-02-01 | 中国神华能源股份有限公司 | Bridge |
| CN102359057A (en) * | 2011-08-05 | 2012-02-22 | 中国神华能源股份有限公司 | Bridge |
| CN102359066A (en) * | 2011-08-05 | 2012-02-22 | 中国神华能源股份有限公司 | Bridge |
| CN102359066B (en) * | 2011-08-05 | 2014-06-18 | 中国神华能源股份有限公司 | Bridge |
| CN102359057B (en) * | 2011-08-05 | 2014-10-29 | 中国神华能源股份有限公司 | Bridge |
| CN102337723B (en) * | 2011-08-05 | 2014-10-29 | 中国神华能源股份有限公司 | Bridge |
| CN104343203A (en) * | 2014-11-04 | 2015-02-11 | 福州大学 | Novel combined beam structure based on steel-ultra-high property concrete |
| CN104594192A (en) * | 2014-12-03 | 2015-05-06 | 华东交通大学 | Composite bridge deck slab of gradient structure |
| CN105064208A (en) * | 2015-08-06 | 2015-11-18 | 福州大学 | Bridge deck structure composed of prefabricated UHPC (Ultra High Performance Concrete) slabs and steel bridge deck and construction method thereof |
| CN107059529A (en) * | 2017-01-16 | 2017-08-18 | 湖南大学 | Embedding stone structure and construction method between ultra-high performance concrete surface and upper layer |
| CN107881912A (en) * | 2017-11-03 | 2018-04-06 | 内蒙古工业大学 | Containing buffer layer, rigid layer, water-proof antifriction layer assembled steel bridge face structure and construction method |
| CN107881912B (en) * | 2017-11-03 | 2019-04-16 | 内蒙古工业大学 | Assembled steel bridge face structure and construction method containing buffer layer, rigid layer, water-proof antifriction layer |
| CN110630030A (en) * | 2019-09-17 | 2019-12-31 | 湖南大学 | P-UHPC reinforcing device for reinforced concrete structure and construction method thereof |
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