CN212714471U - High-speed railway highway-railway combined construction continuous steel truss combined beam bridge - Google Patents
High-speed railway highway-railway combined construction continuous steel truss combined beam bridge Download PDFInfo
- Publication number
- CN212714471U CN212714471U CN202021521785.4U CN202021521785U CN212714471U CN 212714471 U CN212714471 U CN 212714471U CN 202021521785 U CN202021521785 U CN 202021521785U CN 212714471 U CN212714471 U CN 212714471U
- Authority
- CN
- China
- Prior art keywords
- bridge
- railway
- highway
- bridge deck
- steel truss
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The embodiment of the application provides a continuous steel purlin of high-speed railway highway railway combined construction combines beam bridge includes: steel truss girder, highway bridge deck system and railway bridge deck system; the steel truss comprises two main trusses and a plurality of upper transverse tie beams, and each main truss comprises an upper chord, a lower chord and a plurality of web members which are arranged in parallel at intervals; the plurality of upper transverse tie beams are arranged between the two main trusses, and each upper transverse tie beam is connected with the upper chords of the two main trusses; the highway bridge deck system comprises a concrete bridge deck and a plurality of concrete cross beams; the concrete bridge deck is connected with the upper chords of the two main trusses through shear nails; the railway bridge deck system comprises orthotropic steel bridge deck plates and transverse partition beams, the orthotropic steel bridge deck plates are connected with the lower chords of the two main trusses, and the plurality of transverse partition beams are arranged on the lower sides of the orthotropic steel bridge deck plates. The high-speed railway highway-railway combined continuous steel truss combined beam bridge provided by the embodiment of the application can reduce the construction cost and improve the road driving conditions while improving the structural rigidity.
Description
Technical Field
The utility model relates to a bridge engineering field, in particular to high-speed railway highway and railway jointly build continuous steel purlin and combine beam bridge.
Background
With the increase of capital investment in China, the construction quantity of bridges is greatly increased due to the large-scale construction of high-speed railways and passenger dedicated lines, and the bridges jointly constructed by high-speed railways and highways are bound to be increased.
However, in the related art, the steel consumption of the highway and railway combined bridge with the designed speed per hour of 350km/h is large, and the construction cost is not economical. And the rigidity is weaker, and the running condition of the train is poorer.
SUMMERY OF THE UTILITY MODEL
In view of this, an embodiment of the present application mainly aims to provide a public-railway combined-construction steel truss combined beam bridge, so as to solve the technical problems in the related art that the public-railway combined-construction bridge has a large steel consumption, weak rigidity, and poor driving conditions of a train.
In order to achieve the above purpose, the technical solution of the embodiment of the present application is implemented as follows:
an embodiment of the application provides a public railway closes builds steel purlin and combines beam bridge, includes:
the steel truss girder comprises two main trusses and a plurality of upper transverse tie beams, wherein each main truss comprises an upper chord, a lower chord and a plurality of web members for connecting the upper chord and the lower chord, and the upper chord and the lower chord are arranged in parallel at intervals; the two main trusses are arranged at intervals in the transverse bridge direction, the upper transverse girders are arranged between the two main trusses and arranged at intervals in the longitudinal bridge direction, and each upper transverse girder is connected with the upper chords of the two main trusses;
the road bridge deck system comprises a concrete bridge deck and a plurality of concrete cross beams connected with the concrete bridge deck, wherein the concrete cross beams are arranged at intervals along the longitudinal bridge direction; the concrete bridge deck is connected with the upper chords of the two main trusses through shear nails;
railway bridge floor system, railway bridge floor system includes orthotropic steel bridge deck slab and follows a plurality of studded beams that longitudinal bridge set up to the interval, orthotropic steel bridge deck slab and two the main truss the lower chord member is connected, and is a plurality of the studded beam sets up the downside of orthotropic steel bridge deck slab, and with orthotropic steel bridge deck slab and two the main truss the lower chord member is connected.
In some embodiments, one said upper cross beam is provided on the underside of each said concrete beam.
In some embodiments, two of the main trusses are disposed obliquely, and a top width of the cross section of the steel truss is greater than a bottom width of the cross section of the steel truss.
In some embodiments, the roadway deck system comprises a plurality of prefabricated sections formed by splicing on the steel truss.
In some embodiments, the precast segment includes two post-cast strips spaced apart along a transverse bridge direction, the plurality of concrete cross beams being located between the two post-cast strips;
the post-pouring belt comprises a post-pouring groove chamber and a plurality of pouring holes, the post-pouring groove chamber is arranged at the bottom of the prefabricated section, and the plurality of pouring holes penetrate through the concrete bridge deck from the top surface of the concrete bridge deck and are communicated with the post-pouring groove chamber;
after the plurality of prefabricated sections are assembled on the steel truss girder to form the highway bridge deck system, the shear nails for connecting the concrete bridge deck and the upper chord are all positioned in the post-cast groove chambers of the corresponding prefabricated sections.
In some embodiments, the railway deck system further comprises small stringers;
every two adjacent diaphragm all be provided with a plurality ofly between the stull, every the stull all with orthotropic steel decking and adjacent two the diaphragm is connected.
In some embodiments, the high-speed railway highway-railway combined continuous steel truss combined beam bridge further comprises a track system laid on the orthotropic steel bridge deck, and a plurality of the small longitudinal beams are positioned on the lower side of the track system.
In some embodiments, the high-speed railway highway-railway combined-construction continuous steel truss combined girder bridge further comprises a plurality of middle piers, part of the structure of the bottom surface of the upper chord is downwardly protruded to form a plurality of pier top chord reinforced sections arranged at intervals along the longitudinal bridge direction, and part of the structure of the bottom surface of the lower chord is downwardly protruded to form a plurality of pier top lower chord reinforced sections arranged at intervals along the longitudinal bridge direction;
pier top chord member reinforcing section pier top lower chord member reinforcing section with well mound one-to-one, every well mound with correspond pier top lower chord member reinforcing section is connected, every pier top upper chord member reinforcing section is located the correspondence the upside of pier top lower chord member reinforcing section.
In some embodiments, the steel truss further comprises a plurality of bridge portals, at least one of the bridge portals is disposed on one side of the vertical centerline of each of the middle piers, and each of the bridge portals is connected to the corresponding upper header beam, the pier-top chord reinforcement section, and the web member.
The embodiment of the application provides a high-speed railway highway and railway combined continuous steel truss girder bridge, the steel truss girder and the railway deck system of this high-speed railway highway and railway combined continuous steel truss girder bridge are the steel construction, highway deck system is the concrete structure, and simultaneously, last chord member and lower chord member parallel arrangement in the steel truss girder, a plurality of entablature set up between two main trusses, and be connected with the last chord member of two main trusses, pass through the shear force nail between the concrete bridge deck of highway deck system and the last chord member of two main trusses and be connected, the bridge deck is orthotropic steel bridge deck in the railway deck system, make this high-speed railway highway and railway combined continuous steel truss girder bridge not only can improve structural rigidity by a wide margin, can also reduce the height of steel truss girder, when saving the steel quantity, reduce engineering cost, can also improve road surface driving condition.
Drawings
Fig. 1 is an elevation view of a high-speed railway combined-construction continuous steel truss combined beam bridge provided by an embodiment of the application;
FIG. 2 is a cross-sectional view taken at points A-A and B-B of FIG. 1, wherein the right side of the centerline is at half-section A-A and the left side of the centerline is at half-section B-B;
FIG. 3 is a cross-sectional view taken at C-C of FIG. 1;
FIG. 4 is a schematic view of the connection of the deck system to the steel truss shown in FIG. 3, with the post-cast strip in a pre-concrete-poured condition;
FIG. 5 is a schematic view of the connection of the deck system to the steel truss shown in FIG. 3, with the post-cast strip in a post-concrete-poured condition;
fig. 6 is a flowchart of a construction method for a high-speed railway highway-railway combined continuous steel truss combined beam bridge according to an embodiment of the application.
Reference numerals:
a steel truss 10; a main truss 11; an upper chord 111; a pier top chord reinforcement section 111 a; a lower chord 112; a pier top lower chord reinforcement section 112 a; a web member 113; an upper tie beam 12; a bridge portal 13; a road deck system 20; a concrete deck slab 21; a prefabricated segment 211; the post-cast strip 211 a; a post-cast bath chamber 211 b; the perfusion holes 211 c; the concrete cross beam 22; a railway deck system 30; orthotropic steel decking 31; a diaphragm 32; a minor longitudinal beam 33; a shear pin 40; a middle pier 50; a side pier 60; a rail system 70.
Detailed Description
It should be noted that, in the present application, technical features in examples and embodiments may be combined with each other without conflict, and the detailed description in the specific embodiment should be understood as an explanation of the gist of the present application and should not be construed as an improper limitation to the present application.
In the description of the present application, the "longitudinal bridging" orientation or positional relationship is based on fig. 1, and the "lateral bridging", "top" and "bottom" orientation or positional relationship is based on fig. 2, wherein "up" and "down" are the top-bottom directions of fig. 2, it being understood that these orientation terms are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be considered as limiting the present application.
An embodiment of the present application provides a high-speed railway highway and railway combined continuous steel truss combined beam bridge, please refer to fig. 1 to 5, the high-speed railway highway and railway combined continuous steel truss combined beam bridge includes: steel truss 10, a road deck system 20 and a railway deck system 30. The steel truss 10 includes two main trusses 11 and a plurality of upper cross girders 12, and the main trusses 11 include upper chords 111, lower chords 112 arranged in parallel at intervals, and a plurality of web members 113 connecting the upper chords 111 and the lower chords 112. Two main trusses 11 set up along horizontal bridge to the interval, and a plurality of entablature 12 sets up between two main trusses 11, and sets up along vertical bridge to the interval, and every entablature 12 all is connected with two main trusses 11's last chord 111. That is, the steel trusses 10 are steel structures, one end of each upper cross beam 12 is connected to the upper chord 111 of one of the main trusses 11, and the other end of each upper cross beam 12 is connected to the upper chord 111 of the other one of the main trusses 11, whereby the overall rigidity of the steel trusses 10 can be improved.
The highway deck system 20 includes a concrete deck 21 and a plurality of concrete beams 22 connected with the concrete deck 21, and the plurality of concrete beams 22 are arranged at intervals along the longitudinal direction of the bridge. The concrete deck slab 21 is connected to the upper chords 111 of the two main trusses 11 by shear pins 40. That is, the road deck system 20 is a concrete structure, and the road deck system 20 is disposed at an upper side of the steel girder 10.
The railway deck system 30 includes orthotropic steel deck panels 31 and a plurality of cross beams 32 arranged at intervals along the longitudinal bridge direction, the orthotropic steel deck panels 31 are connected with the lower chords 112 of the two main trusses 11, and the plurality of cross beams 32 are arranged at the lower sides of the orthotropic steel deck panels 31 and connected with the orthotropic steel deck panels 31 and the lower chords 112 of the two main trusses 11. That is, the railway deck system 30 is disposed at the lower side of the steel girder 10, and is of a steel structure.
In the public-railway combined bridge in the related art, the upper chord member and the lower chord member are generally in a height-variable structure, namely the upper chord member and the lower chord member are not arranged in parallel, and the public-railway combined bridge with the design speed per hour of 350km/h is generally in a large number of steel structures, so that the steel consumption is large, the rigidity is weak, and the running conditions of a train are poor.
The high-speed railway highway-railway combined continuous steel truss combined beam bridge of the embodiment adopts a steel truss beam-concrete combined beam, and roads and railways are arranged in a layered mode, wherein the steel truss beam 10 is of a steel structure, a highway bridge deck system 20 arranged on the upper side of the steel truss beam 10 is of a concrete structure, a railway bridge deck system 30 arranged on the lower side of the steel truss beam 10 is of a steel structure, the highway bridge deck system 20 of the concrete structure fully exerts the compression performance of concrete, the structural rigidity is improved, the driving condition is improved, the steel consumption of the high-speed railway highway-railway combined continuous steel truss combined beam bridge is greatly reduced, and the self weight of the structure can be reduced by the orthotropic steel bridge deck 31 in the railway bridge deck system 30. Compared with the highway-railway combined bridge in the related technology, the high-speed railway highway-railway combined continuous steel truss combined bridge in the embodiment can greatly improve the structural rigidity, so that the height of the steel truss girder 10 can be reduced, the steel consumption is saved, the construction cost is reduced, and the road driving conditions can be improved. The design hourly speed of the high-speed railway combined highway and railway continuous steel truss combined beam bridge can reach 350 km/h.
In addition, the overall arrangement form of the steel truss girder 10 of the embodiment is low truss height and parallel chord, so that the height of the steel truss girder 10 is reduced as much as possible, the space of each part of the high-speed railway highway-railway combined continuous steel truss combined girder bridge can be fully utilized, the cross section of the high-speed railway highway-railway combined continuous steel truss combined girder bridge is compactly arranged, and further, the structural integrity of the high-speed railway highway-railway combined continuous steel truss combined girder bridge is improved, and meanwhile, the shape of the high-speed railway highway-railway combined continuous steel truss combined girder bridge is simpler and more attractive.
Referring to fig. 2 to 5, in the present embodiment, each of the concrete cross beams 22 is provided with one upper cross beam 12 on the lower side thereof, that is, each of the concrete cross beams 22 is provided between the concrete deck 21 and the corresponding upper cross beam 12, the number of the concrete cross beams 22 may be less than that of the upper cross beams 12, as long as it is ensured that one upper cross beam 12 is provided below each of the concrete cross beams 22, and each of the concrete cross beams 22 may contact with the corresponding upper cross beam 12 or may have a gap with the corresponding upper cross beam 12. The upper transverse tie beam 12 is arranged on the lower side of the concrete cross beam 22, so that the transverse integral rigidity of the high-speed railway combined continuous steel truss girder combined beam bridge can be improved, and the structural integrity in the construction and use stages is ensured.
In other embodiments, the upper header rail 12 may not be provided on the lower side of the concrete beam 22.
Referring to fig. 1, in this embodiment, the high-speed railway highway-railway combined continuous steel truss girder bridge further includes a plurality of middle piers 50, a partial structure of the bottom surface of the upper chord 111 protrudes downward to form a plurality of pier top chord reinforced sections 111a arranged at intervals in the longitudinal bridge direction, a partial structure of the bottom surface of the lower chord 112 protrudes downward to form a plurality of pier top and lower chord reinforced sections 112a arranged at intervals in the longitudinal bridge direction, the pier top chord reinforced sections 111a, the pier top and lower chord reinforced sections 112a and the middle piers 50 correspond to each other one by one, each middle pier 50 is connected with a corresponding pier top and lower chord reinforced section 112a, and each pier top chord reinforced section 111a is located on the upper side of the corresponding pier top and lower chord reinforced section 112 a. That is, the upper chord 111 has a partial region having a thickness dimension larger than that of the other region, the lower chord 112 also has a partial region having a thickness dimension larger than that of the other region, and the thickened region of the upper chord 111 and the thickened region of the lower chord 112 are both located in the vicinity of the middle pier 50, whereby the peripheral region of the middle pier 50 can be reinforced.
Further, referring to fig. 1 and 3, the steel truss 10 of the present embodiment further includes a plurality of bridge frames 13, one bridge frame 13 is disposed on each of two sides of the vertical center line of each middle pier 50, and each bridge frame 13 is connected to the corresponding upper cross beam 12, the pier top chord reinforcement section 111a, and the web 113. The provision of the portal 13 also provides further reinforcement to the area surrounding the middle pier 50.
It will be appreciated that in other embodiments, the number of bridge portals 13 on either side of the vertical centre line of each middle pier 50 may be adjusted as required, and that the bridge portals 13 may be provided on only one side of the vertical centre line of each middle pier 50, i.e. as long as it is ensured that at least one bridge portal 13 is provided on one side of the vertical centre line of each middle pier 50. In other embodiments, the portal frame 13 may not be provided.
Referring to fig. 2 and 3, in the present embodiment, two main girders 11 are disposed obliquely, and the top width of the cross section of the steel girder 10 is greater than the bottom width of the cross section of the steel girder 10. That is, the cross section of the steel girder 10 may be a stringer structure, and thus, the width of the orthotropic steel deck 31 may be reduced to further reduce the construction cost.
Further, referring to fig. 3 to 5, the top surface of the upper beam 12 of the present embodiment is flush with the top surfaces of the upper chords 111 of the two main trusses 11, and the bottom surface of the concrete cross beam 22 is flush with the bottom surface of the concrete deck 21. The bottom surface of the concrete deck 21 is connected to the top surfaces of the upper chords 111 of the two main trusses 11 by the shear pins 40, whereby the connection of the concrete deck 21 to the upper chords 111 can be facilitated.
Referring to fig. 4 and 5, the highway bridge deck system 20 of the present embodiment includes a plurality of prefabricated segments 211, and the plurality of prefabricated segments 211 are assembled on the steel truss 10 to form the highway bridge deck system 20. That is, the highway deck system 20 of the present embodiment employs a segment prefabrication and splicing technique, and the prefabricated segments 211 are prefabricated in a factory and then spliced at a construction site, thereby not only shortening a site construction period, but also improving construction quality.
Further, referring to fig. 4, the precast segment 211 of the present embodiment includes two post-cast strips 211a arranged at intervals in the transverse bridge direction, and the plurality of concrete cross beams 22 are located between the two post-cast strips 211 a. The post-cast strip 211a includes a post-cast groove chamber 211b and a plurality of injection holes 211c, the post-cast groove chamber 211b is disposed at the bottom of the precast segment 211, and the plurality of injection holes 211c pass through the concrete deck panel 21 from the top surface of the concrete deck panel 21 and communicate with the post-cast groove chamber 211 b. After the plurality of prefabricated segments 211 are assembled on the steel girder 10 to form the road deck system 20, the shear nails 40 connecting the concrete deck slab 21 and the upper chord 111 are located in the post-cast groove chambers 211b of the corresponding prefabricated segments 211. That is, the post-cast groove chamber 211b is disposed at a position corresponding to the position of the shear nails 40 on the steel truss 10, and referring to fig. 5, after the plurality of prefabricated sections 211 are assembled on the steel truss 10, concrete may be poured into the post-cast groove chamber 211b through the pouring holes 211c, so that the concrete deck 21 can be connected to the upper chords 111 of the two main trusses 11 through the shear nails 40.
Referring to fig. 2 and 3, the railway deck system 30 of the present embodiment further includes small longitudinal beams 33, a plurality of small longitudinal beams 33 are disposed between every two adjacent transverse partition beams 32, and each small longitudinal beam 33 is connected to the orthotropic steel deck slab 31 and the two adjacent transverse partition beams 32.
The provision of a plurality of small stringers 33 may increase the strength and rigidity of the railway deck system 30 to improve the driving conditions.
Further, referring to fig. 2 and 3, the high-speed railway highway-railway combined continuous steel truss girder bridge of the embodiment further includes a rail system 70 laid on the orthotropic steel bridge deck 31, and the plurality of small longitudinal beams 33 are located at a lower side of the rail system 70. That is, the plurality of small side members 33 may be provided only on the lower side of the rail system 70, whereby the running condition can be improved.
Another embodiment of the present application further provides a construction method for jointly building a continuous steel truss composite girder bridge by high-speed railway highway and railway, which is used for the jointly building continuous steel truss composite girder bridge by high-speed railway highway and railway described above, wherein the orthotropic steel bridge deck 31 includes a plurality of steel bridge deck units, the steel truss 10 includes a plurality of steel truss sections, that is, the orthotropic steel bridge deck 31 is assembled by a plurality of steel bridge deck units, and the steel truss 10 is assembled by a plurality of steel truss sections. Referring to fig. 1 and 6, the construction method mainly includes the following steps:
s701: constructing the side piers 60, the middle piers 50 and the foundation;
s702: welding the steel deck panel units and the diaphragm beams 32 with the corresponding steel truss beam sections to form structural units;
specifically, the steel truss sections may be fabricated in a factory, and then the steel deck plate units and the wales 32 are installed on the corresponding steel truss sections, and one steel truss section is connected with the corresponding steel deck plate unit and the wales 32 to form one structural unit, which is equivalent to the number of the structural units being the same as the number of the steel truss sections.
In addition, step S701 and step S702 are not in sequence, and both steps may be performed synchronously.
S703: hoisting the structural units, splicing the structural units into a continuous structure, and jacking the continuous structure to a preset height at a middle pier;
this step is also referred to as the header.
S704: hoisting the highway bridge deck system 20 onto the steel truss girder 10, and pouring post-cast concrete so as to connect the highway bridge deck system 20 and the steel truss girder 10 to form an integral structure;
specifically, the road deck system 20 may also include a plurality of prefabricated segments 211, where the prefabricated segments 211 are prefabricated in a factory, maintained and pre-stored, and then assembled on the steel truss 10 to form the road deck system 20.
S705: the jacking part of the integral structure at the middle pier position falls back to the design position;
this step is also called beam landing.
S706: tensioning the concrete deck slab 21 prestress;
s707: forming a bridge.
Specifically, in the actual construction process, after the concrete deck slab 21 is prestressed, the construction of the subsidiary facilities may be completed, and finally, the bridge is formed.
That is to say, the high-speed railway highway and railway combined continuous steel truss combined beam bridge of this embodiment mainly adopts the construction method of roof beam falling, and this construction method not only can improve the concentrated problem of pier top structure internal force, has removed the setting of stiffening structure from, has improved the leap ability of high-speed railway highway and railway combined continuous steel truss combined beam bridge, can also reduce the tensile stress of concrete decking 21, and then can reduce the quantity of the prestressed reinforcement who buries in concrete decking 21.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (9)
1. The utility model provides a continuous steel purlin of high-speed railway highway railway combined construction combines beam bridge which characterized in that includes:
the steel truss girder comprises two main trusses and a plurality of upper transverse tie beams, wherein each main truss comprises an upper chord, a lower chord and a plurality of web members for connecting the upper chord and the lower chord, and the upper chord and the lower chord are arranged in parallel at intervals; the two main trusses are arranged at intervals in the transverse bridge direction, the upper transverse girders are arranged between the two main trusses and arranged at intervals in the longitudinal bridge direction, and each upper transverse girder is connected with the upper chords of the two main trusses;
the road bridge deck system comprises a concrete bridge deck and a plurality of concrete cross beams connected with the concrete bridge deck, wherein the concrete cross beams are arranged at intervals along the longitudinal bridge direction; the concrete bridge deck is connected with the upper chords of the two main trusses through shear nails;
railway bridge floor system, railway bridge floor system includes orthotropic steel bridge deck slab and follows a plurality of studded beams that longitudinal bridge set up to the interval, orthotropic steel bridge deck slab and two the main truss the lower chord member is connected, and is a plurality of the studded beam sets up the downside of orthotropic steel bridge deck slab, and with orthotropic steel bridge deck slab and two the main truss the lower chord member is connected.
2. The high-speed railway highway and railway combined construction continuous steel truss combined beam bridge according to claim 1, wherein the lower side of each concrete cross beam is provided with one upper cross tie beam.
3. The high-speed railway highway and railway combined construction continuous steel truss combined beam bridge according to claim 1 or 2, wherein the two main trusses are obliquely arranged, and the top width of the cross section of the steel truss is larger than the bottom width of the cross section of the steel truss.
4. The highway railway composite continuous steel truss bond beam bridge according to claim 1 or 2, wherein the highway bridge deck comprises a plurality of prefabricated sections, and the plurality of prefabricated sections are assembled on the steel truss to form the highway bridge deck.
5. The high-speed railway highway and railway combined-construction continuous steel truss combined beam bridge according to claim 4, wherein the prefabricated sections comprise two post-cast strips arranged at intervals along the transverse bridge direction, and a plurality of concrete cross beams are positioned between the two post-cast strips;
the post-pouring belt comprises a post-pouring groove chamber and a plurality of pouring holes, the post-pouring groove chamber is arranged at the bottom of the prefabricated section, and the plurality of pouring holes penetrate through the concrete bridge deck from the top surface of the concrete bridge deck and are communicated with the post-pouring groove chamber;
after the plurality of prefabricated sections are assembled on the steel truss girder to form the highway bridge deck system, the shear nails for connecting the concrete bridge deck and the upper chord are all positioned in the post-cast groove chambers of the corresponding prefabricated sections.
6. The high-speed railway highway and railway combined construction continuous steel truss combined beam bridge according to claim 1 or 2, wherein the railway bridge deck system further comprises small longitudinal beams;
every two adjacent diaphragm all be provided with a plurality ofly between the stull, every the stull all with orthotropic steel decking and adjacent two the diaphragm is connected.
7. The high-speed railway highway and railway combined continuous steel truss girder bridge according to claim 6, further comprising a track system laid on the orthotropic steel bridge deck, wherein a plurality of the small longitudinal beams are positioned at the lower side of the track system.
8. The high-speed railway highway-railway combined continuous steel truss girder bridge according to claim 1 or 2, further comprising a plurality of middle piers, wherein part of the structure of the bottom surface of the upper chord projects downwards to form a plurality of pier top chord reinforced sections arranged at intervals along the longitudinal bridge direction, and part of the structure of the bottom surface of the lower chord projects downwards to form a plurality of pier top lower chord reinforced sections arranged at intervals along the longitudinal bridge direction;
pier top chord member reinforcing section pier top lower chord member reinforcing section with well mound one-to-one, every well mound with correspond pier top lower chord member reinforcing section is connected, every pier top upper chord member reinforcing section is located the correspondence the upside of pier top lower chord member reinforcing section.
9. The high-speed railway highway railway combined construction continuous steel truss combined beam bridge according to claim 8, wherein the steel truss further comprises a plurality of bridge portal frames, at least one bridge portal frame is arranged on one side of the vertical center line of each middle pier, and each bridge portal frame is connected with the corresponding upper cross beam, the pier top chord reinforcement section and the web member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021521785.4U CN212714471U (en) | 2020-07-28 | 2020-07-28 | High-speed railway highway-railway combined construction continuous steel truss combined beam bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021521785.4U CN212714471U (en) | 2020-07-28 | 2020-07-28 | High-speed railway highway-railway combined construction continuous steel truss combined beam bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212714471U true CN212714471U (en) | 2021-03-16 |
Family
ID=74910124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021521785.4U Active CN212714471U (en) | 2020-07-28 | 2020-07-28 | High-speed railway highway-railway combined construction continuous steel truss combined beam bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212714471U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114214957A (en) * | 2021-12-30 | 2022-03-22 | 武船重型工程股份有限公司 | Construction method of double-layer truss bridge |
-
2020
- 2020-07-28 CN CN202021521785.4U patent/CN212714471U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114214957A (en) * | 2021-12-30 | 2022-03-22 | 武船重型工程股份有限公司 | Construction method of double-layer truss bridge |
| CN114214957B (en) * | 2021-12-30 | 2024-03-22 | 武船重型工程股份有限公司 | Construction method of double-layer truss bridge |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111827075A (en) | High-speed railway highway-railway combined construction continuous steel truss combined beam bridge and construction method | |
| CN110582609B (en) | Construction system and method for combined U-shaped reinforcing beam bridge floor | |
| CN105002816A (en) | Prefabricated-assembling fish-bellied I-shaped prestress steel-concrete combination continuous beam bridge and construction method | |
| CN111962372A (en) | Road-rail combined construction steel web member double-combination continuous truss girder and construction method thereof | |
| CN110792025A (en) | Connection structure of assembled precast concrete decking and girder steel | |
| CN211522899U (en) | Long-span steel-concrete composite beam convenient to erect by bridge girder erection machine | |
| CN112458877A (en) | Assembled steel-concrete combined rigid frame bridge and construction method thereof | |
| CN212714471U (en) | High-speed railway highway-railway combined construction continuous steel truss combined beam bridge | |
| CN108221636B (en) | Steel-concrete composite beam bridge constructed by adopting bracket-free scheme for midspan and bridge forming method | |
| CN205188793U (en) | Prefabricated fish belly I shape prestressing force steel and concrete composite continuous bridge of assembling | |
| CN112281663B (en) | Construction method for widening connection of upper structures of new and old bridges | |
| CN107905084B (en) | RPC steel truss combined bridge deck and continuous beam bridge | |
| CN103205930B (en) | Structure for continuous transformation of existing simply supported hollow slab girder bridge and construction method of structure | |
| CN109930469B (en) | Steel box girder thin-wall pier rigid frame cable-stayed bridge suitable for straddle type monorail | |
| KR20080107567A (en) | Truss structure of a temporary bridge | |
| CN103194963B (en) | Structure for continuous modification of existing simply-supported T-shaped beam bridge and construction method thereof | |
| CN113174831B (en) | Steel truss combined main beam structure of cable-stayed bridge of ballastless track of high-speed railway | |
| CN215405528U (en) | Bridge structure suitable for asymmetric rotation | |
| CN212335738U (en) | Double-combination continuous truss girder of combined steel web member for highway and railway construction | |
| CN211922242U (en) | Full rigid frame bridge system for long and large intervals of rail transit | |
| CN112095449B (en) | Light-weight combined beam pier top longitudinal connection structure and construction method thereof | |
| CN114855584A (en) | Separated type ultra-wide prestressed concrete box girder structure and construction method thereof | |
| CN103669193A (en) | Laterally spliced combination T beam with wavy steel webs and construction method thereof | |
| CN209941469U (en) | Steel box girder thin-wall pier rigid frame cable-stayed bridge suitable for straddle type monorail | |
| CN203256627U (en) | Continuously-transforming structure of existing simply-supporting hollow plate girder bridge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |