CN211057583U - Full composite bridge - Google Patents
Full composite bridge Download PDFInfo
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- CN211057583U CN211057583U CN201921953056.3U CN201921953056U CN211057583U CN 211057583 U CN211057583 U CN 211057583U CN 201921953056 U CN201921953056 U CN 201921953056U CN 211057583 U CN211057583 U CN 211057583U
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- 239000002131 composite material Substances 0.000 title claims abstract description 120
- 238000009434 installation Methods 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 238000010276 construction Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 description 18
- 230000006872 improvement Effects 0.000 description 11
- 238000000034 method Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 240000007182 Ochroma pyramidale Species 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000003733 fiber-reinforced composite Substances 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
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Abstract
The utility model discloses a full composite bridge, belonging to the technical field of bridges, which comprises a bridge abutment, a composite bridge longitudinal beam, a composite bridge cross beam and a composite bridge deck; the composite bridge deck comprises two bridge head butt straps and at least one bridge deck standard section, wherein the bridge deck standard section comprises a top deck I, a bottom deck I, an inner web I and two outer webs I, and each outer web I is provided with a connecting groove I; the bridge head butt strap comprises a top panel II, a bottom panel II, an inner web II and an outer web II, wherein the outer web II is provided with a connecting groove II; and a bridge deck connecting beam I is arranged between the connecting groove II and the adjacent connecting groove I. The utility model discloses reduce bridge weight and manufacturing cost, reduced the construction degree of difficulty, improved the speed of erectting.
Description
Technical Field
The utility model belongs to the technical field of the bridge, especially, relate to a full combined material bridge.
Background
At present, the structure of the bridge in the prior art is mostly a concrete structure, a steel structure, an aluminum alloy structure and the like. The concrete structure bridge has high specific gravity, although the construction is convenient, the setting time is long, and the concrete can crack when stress is generated; although the steel structure bridge is convenient to construct and can be preformed, the steel structure has the defects of heavy self weight, poor maneuverability, more transport vehicles, high operation labor intensity and the like; although the aluminum alloy structure bridge has light specific gravity, the installation is inconvenient, time and labor are wasted and the cost is higher when the bridge has a large-span structure and a complex structure.
Fiber reinforced composite materials have the characteristics of light weight, high strength, corrosion resistance and the like, and the application of the composite materials in the engineering field is increasing day by day. Many projects in the prior art began to apply it to bridges, even large span bridges.
However, at present, most bridges only use fiber reinforced composite materials as auxiliary materials of the bridges, and the main bodies of the bridges still adopt steel structures or concrete upper structures, so that the self weight of the bridges is increased to a certain extent, the manufacturing cost is increased, and the erection difficulty is also increased. Therefore, in the bridge technology field, there is still a need for research and improvement on the composite bridge, which is also a research focus and focus in the bridge technology field at present, and is the starting point of the present invention.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model discloses the technical problem that solve is: the bridge made of the full composite materials is provided, the weight and the manufacturing cost of the bridge are reduced on the premise of ensuring the bearing capacity, the construction difficulty is reduced, and the erection speed is increased.
In order to solve the technical problem, the technical scheme of the utility model is that: a full composite bridge comprises at least two composite bridge longitudinal beams arranged between two bridge abutments, a plurality of composite bridge cross beams arranged on the composite bridge longitudinal beams at intervals and a composite bridge deck arranged on the composite bridge cross beams;
the composite material bridge deck comprises two bridge head butt straps and at least one bridge deck standard knot positioned between the two bridge head butt straps, wherein the bridge deck standard knot comprises a top deck I, a bottom deck I, an inner web I and two outer webs I, the inner web I and the two outer webs I are positioned between the top deck I and the bottom deck I, the two outer webs I are respectively positioned on two sides of the inner web I, and each outer web I is provided with a connecting groove I which protrudes inwards; the bridge head butt strap comprises a top panel II, a bottom panel II, an inner web II and an outer web II, wherein the inner web II and the outer web II are positioned between the top panel II and the bottom panel II;
the connecting groove II is adjacent to the connecting groove I, a bridge deck connecting beam I is arranged between the connecting grooves I, and when the standard sections of the bridge deck are more than two, the connecting grooves II are adjacent to each other, and a bridge deck connecting beam II is arranged between the connecting grooves I.
As an improvement, a slot I matched with the composite material bridge cross beam is formed in the bottom panel I; a half slot A is formed in each outer web I and located below the connecting slot I, a half slot B is formed in each outer web II and located below the connecting slot II, and a slot II matched with the composite material bridge cross beam is formed between each half slot B and the adjacent half slot A; when the standard sections of the bridge deck are more than two, a slot III matched with the composite material bridge cross beam is formed between every two adjacent half slots A.
As a further improvement, the composite material bridge beam is an I-shaped beam, and the slot I, the slot II and the slot III are all inverted T-shaped and are respectively matched with a top plate and a web plate of the I-shaped beam.
As an improvement, a plurality of sockets arranged at intervals are formed in the composite material bridge longitudinal beam, and the composite material bridge cross beam is inserted into the sockets.
As a further improvement, the composite bridge stringer is an i-shaped stringer, and the socket includes a transverse opening located on a top plate of the i-shaped stringer and an inverted T-shaped opening located on a web plate of the i-shaped stringer; the composite material bridge beam is an I-shaped beam, and a bottom plate and a web plate of the I-shaped beam penetrate through the socket.
As a further improvement, a first elastic piece is arranged between the contact surfaces of the composite bridge cross beam and the composite bridge longitudinal beam.
As an improvement, the abutment is provided with an installation groove matched with the end part of the composite material bridge longitudinal beam.
As a further improvement, a second elastic piece is arranged at the contact position of the composite material bridge longitudinal beam and the installation groove.
As an improvement, the connecting groove I and the connecting groove II are both in a dovetail groove shape.
After the technical scheme is adopted, the beneficial effects of the utility model are that:
the utility model provides a full combined material bridge, because bridge longeron, bridge crossbeam, decking all adopt combined material, therefore the main part of bridge is whole to adopt combined material to make, each component light in weight and intensity are high, greatly reduced the weight and the manufacturing cost of bridge, simultaneously corrosion-resistant, the maintenance cost is low; the composite material bridge deck is formed by assembling the bridge head butt strap, the bridge deck standard knot, the bridge deck connecting beam I and the bridge deck connecting beam II, so that the size of each component is small, the components are easy to carry and erect, the types of the components are few, the manufacturing is convenient, and the manufacturing cost is low; and because the bridge deck connecting beam I is arranged between the connecting groove II and the adjacent connecting groove I, when the number of the standard sections of the bridge deck is more than two, the bridge deck connecting beam II is arranged between the adjacent two connecting grooves I, the installation of the composite bridge deck is realized by adopting a splicing mode, the connection is reliable, and the erection speed is greatly improved. The utility model provides a full combined material bridge has reduced bridge weight and manufacturing cost under the prerequisite of guaranteeing bearing capacity, has reduced the construction degree of difficulty, has improved the speed of erectting.
The bottom panel I is provided with a slot I matched with the composite material bridge cross beam; a slot II matched with the composite material bridge cross beam is formed between the half slot B and the adjacent half slot A; adjacent two form between half slot A with combined material bridge crossbeam matched with slot III, adopt the mode of pegging graft to realize like this the connection of combined material bridge deck board and combined material bridge crossbeam has further improved the speed of erectting.
Because the composite material bridge longitudinal beam is provided with the plurality of sockets arranged at intervals, and the composite material bridge cross beam is inserted in the sockets, the composite material bridge longitudinal beam and the composite material bridge cross beam are connected in an inserting mode, and the erection speed is further improved.
Because the first elastic piece is arranged between the contact surfaces of the composite material bridge cross beam and the composite material bridge longitudinal beam, the damage caused by stress concentration in the stress process is prevented; the second elastic piece is arranged at the contact position of the composite material bridge longitudinal beam and the installation groove, so that local stress concentration is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the range which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
Fig. 1 is a perspective view of a full composite bridge provided by an embodiment of the present invention;
FIG. 2 is a front projection view of FIG. 1;
FIG. 3 is a schematic diagram of the relative positions of an abutment, a composite longitudinal bridge beam, a composite transverse bridge beam, a bridge head butt strap, a bridge deck standard section, a bridge deck connecting beam I and a bridge deck connecting beam II provided by the embodiment of the invention;
FIG. 4 is a schematic view of a partial structure of a composite decking;
FIG. 5 is an enlarged view of a portion of FIG. 4 at A;
FIG. 6 is an enlarged schematic view of a standard section of the bridge deck;
FIG. 7 is an enlarged schematic view of the bridge end strap;
FIG. 8 is an enlarged schematic view of a deck connecting beam I;
FIG. 9a is a schematic structural view of a composite bridge stringer;
FIG. 9b is a side view of FIG. 9 a;
FIG. 9c is an enlarged view of a portion of FIG. 9B at B;
FIG. 9d is a partial perspective view of a composite bridge stringer;
FIG. 10 is a perspective view of an abutment;
FIG. 11 is an enlarged schematic view of another standard bridge deck section;
FIG. 12 is an enlarged schematic view of a standard section of a bridge deck;
in the figure: 1-abutment, 11-mounting groove, 2-composite bridge stringer, 21-spigot, 211-transverse opening, 212-inverted-T opening, 3-composite bridge beam, 4-composite bridge deck, 41-bridge head butt strap, 411-top deck II, 4111-top deck, 4112-bevel section, 412-bottom deck II, 413-inner web II, 4131-inclined deck III, 414-outer web II, 4141-connecting groove II, 4142-half slot B, 42-bridge deck standard knot, 421-top deck I, 422-bottom deck I, 4221-slot I, 423-inner web I, 4231-inclined deck I, 423 a-inner web I, 4232-inclined deck II, 423B-inner web I, 4233-upright deck I, 424-outer web I, 4241-connecting groove I, 4242-half slot A, 43-bridge deck connecting beam I, 44-bridge deck connecting beam II, 45-slot II.
Detailed Description
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the present specification, the terms "front", "rear", "left", "right", "inner", "outer" and "middle" are used for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes.
As shown in fig. 1 to 3, a full composite bridge comprises two composite bridge stringers 2 arranged between two bridge abutments 1, fifteen composite bridge cross beams 3 installed on the composite bridge stringers 2 at intervals, and a composite bridge deck 4 installed on the composite bridge cross beams 3. It should be noted that the number of the composite bridge longitudinal beams 2 is not limited to two, and may also be three, four, and the like, and the number of the composite bridge cross beams 3 is also not limited to fifteen, and those skilled in the art may select other numbers according to actual needs, and details are not described herein.
As shown in fig. 1 and fig. 3 to 8, the composite bridge deck 4 includes two bridge end straps 41 and seven bridge deck standard joints 42 located between the two bridge end straps 41, the number of the bridge deck standard joints 42 is not limited to seven, and those skilled in the art can select other numbers according to actual needs, and the details are not repeated herein; the bridge deck standard knot 42 comprises a top deck I421, a bottom deck I422, an inner web I423 and two outer webs I424, wherein the inner web I423 and the two outer webs I424 are located between the top deck I421 and the bottom deck I422, the two outer webs I424 are respectively located on two sides of the inner web I423, in the embodiment, the inner web I423 comprises six inclined plate portions I4231 which are connected together, certainly, the number of the inclined plate portions I4231 is not limited to six, and other numbers can be selected by a person skilled in the art according to actual conditions, and are not described herein again; a triangular space is formed between each two adjacent inclined plate parts I4231 and the top panel I421 or the bottom panel I422; each outer web I424 is provided with an inwardly protruding connecting groove I4241, preferably, the connecting groove I4241 is in a dovetail groove shape, and of course, the shape of the connecting groove I4241 may also adopt other manners which can be realized by those skilled in the art, and details are not described herein. Preferably, the inner space formed by the inner web I423, the top panel I421 and the bottom panel I422 is filled with a sandwich material, and the sandwich material can be foam or balsa wood.
It should be noted that the shape of the inner web i 423 may also be set in other ways that can be realized by those skilled in the art, for example, as shown in fig. 11, the inner web i 423a includes five inclined plate portions ii 4232 arranged at intervals, of course, the number of the inclined plate portions ii 4232 is not limited to five, and those skilled in the art may select other numbers according to the actual situation; trapezoidal spaces are formed between the two adjacent inclined plate parts II 4232 and the top panel I421 and the bottom panel I422; for another example, as shown in fig. 12, the inner web i 423b includes seven upright plate portions i 4233 arranged at intervals, but the number of the upright plate portions i 4233 is not limited to seven, and those skilled in the art can select other numbers according to actual situations; a rectangular space is formed between two adjacent vertical plate parts I4233 and the top panel I421 and the bottom panel I422.
The bridge head attachment plate 41 comprises a top panel II 411, a bottom panel II 412, an inner web II 413 and an outer web II 414 which are positioned between the top panel II 411 and the bottom panel II 412, wherein the top panel II 411 comprises a top surface portion 4111 and a bevel portion 4112 connected with the bottom panel II 412, in the embodiment, the inner web II 413 comprises five bevel plate portions III 4131, of course, the number of the bevel plate portions III 4131 is not limited to five, and other numbers can be selected by a person skilled in the art according to actual conditions; it should be noted that, as an alternative, the inner web ii 413 may also include a plurality of upright plate portions ii arranged at intervals, and the shape of the inner web ii 413 may also be set in other ways that can be implemented by those skilled in the art, which are not described herein again; the outer web plate ii 414 is provided with an inwardly protruding connecting groove ii 4141, preferably, the connecting groove ii 4141 is in a dovetail groove shape, of course, the shape of the connecting groove ii 4141 may also adopt other manners that can be realized by those skilled in the art, and will not be described herein again. Preferably, the inner space formed by the inner web II 413, the top panel II 411 and the bottom panel II 412 is also filled with sandwich materials, and the sandwich materials can be selected from foam or balsa wood.
And a bridge deck connecting beam I43 is arranged between the connecting groove II 4141 and the adjacent connecting groove I4241, and when more than two bridge deck standard knots 42 are arranged, a bridge deck connecting beam II 44 is arranged between the two adjacent connecting grooves I4241.
In this way, the bridge longitudinal beam, the bridge cross beam and the bridge deck are all made of composite materials, so that the main body of the bridge is made of the composite materials, all components are light in weight and high in strength, the weight and the manufacturing cost of the bridge are greatly reduced, and meanwhile, the bridge is corrosion-resistant and low in maintenance cost; because the composite material bridge deck 4 is assembled by adopting the bridge head butt strap 41, the bridge deck standard knot 42, the bridge deck connecting beam I43 and the bridge deck connecting beam II 44, the size of each component is small, the transportation and erection are easy, the types of the components are few, the manufacture is convenient, and the manufacture cost is low; and the installation of the composite material bridge deck 4 is realized by adopting a splicing mode, the connection is reliable, and the erection speed is greatly improved.
In order to further improve the erection speed, the bottom panel I422 is provided with a slot I4221 matched with the composite material bridge beam 3; a half slot A4242 is formed in each outer web I424 and located below the connecting slot I4241, a half slot B4142 is formed in each outer web II 414 and located below the connecting slot II 4141, and a slot II 45 matched with the composite material bridge cross beam 3 is formed between each half slot B4142 and the adjacent half slot A4242; when the number of the bridge deck standard knots 42 is more than two, a slot III (not marked in the figure) matched with the composite material bridge cross beam 3 is formed between two adjacent half slots A4242, so that the composite material bridge deck 4 and the composite material bridge cross beam 3 are connected in an inserting mode. Of course, the composite bridge deck 4 and the composite bridge cross beam 3 may also be assembled by other methods such as bonding and fastener connection, but the connection reliability and the installation speed are not as fast as those of the plug-in manner, and are not described herein again.
In this embodiment, the composite material bridge beam 3 is an i-beam, and the slot i 4221, the slot ii 45 and the slot iii are all inverted T-shaped and respectively matched with a top plate and a web plate of the i-beam.
With reference to fig. 3, 9a, 9b, 9c, and 9d, in order to further increase the erection speed, fifteen sockets 21 are formed on the composite material bridge longitudinal beam 2 at intervals, and the composite material bridge transverse beam 3 is inserted into the sockets 21, so that the composite material bridge longitudinal beam 2 and the composite material bridge transverse beam 3 are connected in an insertion manner. Of course, the composite bridge longitudinal beam 2 and the composite bridge transverse beam 3 may also be assembled by other methods such as bonding and fastener connection, but the connection reliability and the installation speed are not as fast as those of the splicing method, and are not described herein again.
In the present embodiment, the composite bridge stringer 2 is an i-shaped stringer, and the socket 21 includes a transverse opening 211 on a top plate of the i-shaped stringer and an inverted T-shaped opening 212 on a web plate of the i-shaped stringer; the base and web of the i-beam pass through the spigot 21.
Preferably, a first elastic member is arranged between the contact surfaces of the composite material bridge cross beam 3 and the composite material bridge longitudinal beam 2, and the first elastic member is preferably a rubber strip (not shown in the figure) so as to prevent stress concentration from generating damage in the stress process. When the composite material bridge cross beam 3 is installed, a rubber strip can be installed at the contact position of the composite material bridge longitudinal beam 2 and the composite material bridge cross beam 3.
As shown in fig. 10, the abutment 1 is provided with an installation groove 11 matching with the end of the composite material bridge girder 2, in this embodiment, the installation groove 11 is a rectangular groove, and of course, as an alternative, the installation groove 11 may also be an i-shaped groove.
Preferably, a second elastic member is arranged at the contact position of the composite material bridge girder 2 and the installation groove 11, the second elastic member is preferably a rubber support (not shown in the figure) to reduce local stress concentration, and the rubber support can be installed at the contact position of the composite material bridge girder 2 on the abutment 1 before the composite material bridge girder 2 is erected.
The embodiment of the utility model provides a still disclose the method of erectting of full combined material bridge, adopt above-mentioned full combined material bridge, include following step:
(1) adopting concrete to construct the abutment 1, and erecting a composite material bridge girder 2 between the two abutments 1;
(2) mounting a composite bridge cross beam 3 on the composite bridge longitudinal beam 2;
(3) installing the composite material bridge deck 4: the method comprises the steps of placing one bridge head attachment plate 41 on one bridge abutment 1 on one side and installing the bridge head attachment plate on the corresponding composite bridge cross beam 3, installing bridge deck standard joints 42 on the corresponding composite bridge cross beam 3, installing bridge deck connecting beams I43 between connecting grooves II 4141 and adjacent connecting grooves I4241, sequentially installing the other bridge deck standard joints 42 on the corresponding composite bridge cross beam 3 when the number of the bridge deck standard joints 42 is more than two, installing bridge deck connecting beams II 44 between the adjacent two connecting grooves I4241 until all the bridge deck standard joints 42 are installed, finally placing the other bridge head attachment plate 41 on the other bridge abutment 1 on the other side and installing the other bridge deck connecting beams I43 on the other connecting groove II 4141 and the adjacent connecting grooves I4241.
To sum up, the embodiment of the utility model provides a full combined material bridge has reduced bridge weight and manufacturing cost under the prerequisite of guaranteeing bearing capacity, has reduced the construction degree of difficulty, has improved the speed of erectting.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (9)
1. A full composite bridge is characterized by comprising at least two composite bridge longitudinal beams arranged between two bridge abutments, a plurality of composite bridge cross beams arranged on the composite bridge longitudinal beams at intervals and a composite bridge deck arranged on the composite bridge cross beams;
the composite material bridge deck comprises two bridge head butt straps and at least one bridge deck standard knot positioned between the two bridge head butt straps, wherein the bridge deck standard knot comprises a top deck I, a bottom deck I, an inner web I and two outer webs I, the inner web I and the two outer webs I are positioned between the top deck I and the bottom deck I, the two outer webs I are respectively positioned on two sides of the inner web I, and each outer web I is provided with a connecting groove I which protrudes inwards; the bridge head butt strap comprises a top panel II, a bottom panel II, an inner web II and an outer web II, wherein the inner web II and the outer web II are positioned between the top panel II and the bottom panel II;
the connecting groove II is adjacent to the connecting groove I, a bridge deck connecting beam I is arranged between the connecting grooves I, and when the standard sections of the bridge deck are more than two, the connecting grooves II are adjacent to each other, and a bridge deck connecting beam II is arranged between the connecting grooves I.
2. The full composite bridge according to claim 1, wherein the bottom panel I is provided with a slot I matched with the composite bridge beam; a half slot A is formed in each outer web I and located below the connecting slot I, a half slot B is formed in each outer web II and located below the connecting slot II, and a slot II matched with the composite material bridge cross beam is formed between each half slot B and the adjacent half slot A; when the standard sections of the bridge deck are more than two, a slot III matched with the composite material bridge cross beam is formed between every two adjacent half slots A.
3. The full composite bridge according to claim 2, wherein the composite bridge beam is an i-beam, and the slot i, the slot ii and the slot iii are inverted T-shaped and respectively matched with a top plate and a web plate of the i-beam.
4. The full composite bridge according to claim 1, wherein the composite bridge longitudinal beam is provided with a plurality of sockets arranged at intervals, and the composite bridge cross beam is inserted into the sockets.
5. The full composite bridge according to claim 4, wherein the composite bridge stringer is an I-beam, the socket comprising a transverse opening in a top plate of the I-beam and an inverted T-shaped opening in a web of the I-beam; the composite material bridge beam is an I-shaped beam, and a bottom plate and a web plate of the I-shaped beam penetrate through the socket.
6. The full composite bridge according to claim 5, wherein a first elastic member is disposed between the contact surfaces of the composite bridge transverse beam and the composite bridge longitudinal beam.
7. The full composite bridge according to claim 1, wherein the abutment has an installation groove formed thereon for engaging with an end of the composite bridge girder.
8. The full composite bridge according to claim 7, wherein a second elastic member is disposed at a contact position of the composite bridge girder and the installation groove.
9. The full composite bridge according to any one of claims 1 to 8, wherein said attachment slots I and II are each dovetail shaped.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921953056.3U CN211057583U (en) | 2019-11-13 | 2019-11-13 | Full composite bridge |
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| CN201921953056.3U CN211057583U (en) | 2019-11-13 | 2019-11-13 | Full composite bridge |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110685211A (en) * | 2019-11-13 | 2020-01-14 | 中国人民解放军陆军工程大学 | Full composite bridge and erection method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110685211A (en) * | 2019-11-13 | 2020-01-14 | 中国人民解放军陆军工程大学 | Full composite bridge and erection method |
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