CN112921784A - Rail transit steel-concrete composite beam with sound insulation function - Google Patents
Rail transit steel-concrete composite beam with sound insulation function Download PDFInfo
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- CN112921784A CN112921784A CN202110112152.0A CN202110112152A CN112921784A CN 112921784 A CN112921784 A CN 112921784A CN 202110112152 A CN202110112152 A CN 202110112152A CN 112921784 A CN112921784 A CN 112921784A
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- 239000004567 concrete Substances 0.000 title claims abstract description 75
- 239000002131 composite material Substances 0.000 title claims abstract description 28
- 238000009413 insulation Methods 0.000 title claims abstract description 24
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 108
- 239000010959 steel Substances 0.000 claims abstract description 108
- 239000011150 reinforced concrete Substances 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 9
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 12
- 238000005452 bending Methods 0.000 abstract description 9
- 230000008901 benefit Effects 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 3
- 238000005336 cracking Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 230000009471 action Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 239000004566 building material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D1/00—Bridges in general
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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Abstract
The application relates to a track traffic steel-concrete composite beam with a sound insulation function, which relates to the technical field of bridge construction, and comprises a steel-concrete bridge deck, two steel main beams and a plurality of cross braces, wherein the two steel main beams are respectively arranged on two sides of the steel-concrete bridge deck along the cross bridge direction, and the bottom ends of the steel main beams are connected with the steel-concrete bridge deck; a plurality of stull are along indulging the bridge and setting up to the interval, and the both ends of stull are connected respectively in the top of two steel girders to enclose jointly with steel-concrete decking and steel girder and establish and form the sound insulation cavity. The steel-concrete composite beam of the application exerts the mechanical property advantages of two materials, strengthens the bearing capacity and the bending rigidity of the structure, avoids the cracking problem of the bridge deck slab in the hogging moment area, and can effectively isolate the propagation of wheel track noise and reduce the pollution of train operation sound when a vehicle runs in a sound insulation cavity. Meanwhile, the steel structure can be prefabricated in a factory, the construction quality is guaranteed, and the construction efficiency is correspondingly improved.
Description
Technical Field
The application relates to the technical field of bridge construction, in particular to a rail transit steel-concrete composite beam with a sound insulation function.
Background
At present, the full coverage of urban rail transit is basically realized in most cities in China, the traveling requirements of people are greatly met due to the advantages of large traffic volume, high efficiency, rapidness, convenience and the like, and the rail transit line in China mainly adopts a mature concrete beam bridge, but is limited due to small adaptive economic span and large creep in later period.
Compared with the traditional concrete beam, the steel-concrete composite beam is generally applied to the actual track bridge engineering project by virtue of the advantages of light self weight, large spanning capacity, short construction period and the like, but the concrete bridge deck in the negative bending moment area is easy to crack under the action of external load, and once the bridge deck cracks, the rigidity of the composite beam is reduced, and the durability of the bridge is reduced.
The steel box girder is mainly made of steel structures which have high strength and elastic modulus, light dead weight and are easy to process, transport and erect, so that the steel box girder becomes an irreplaceable bridge form of a large-span bridge. Under the condition that no stiffening rib is arranged, the top plate of the steel box girder is easy to generate larger concave-convex deformation under the action of vertical vehicle load and the like, so that the stress and the deformation near a concentrated load are caused to be overlarge, the local buckling and the like of a compression flange are damaged, the rigidity of the top plate is relatively smaller, and therefore, the longitudinal stiffening rib is usually arranged to improve the bending rigidity and the torsional rigidity of a bridge, so that the normal use performance of the steel box girder is ensured, but the welding workload is large, the steel consumption is large, the price is relatively higher, meanwhile, noise generated when a train passes through the steel bridge seriously affects the life of residents, and certain control measures are generally required to be adopted.
Generally, a top plate is used as a bearing surface of live load, a web plate is used as a shear-resistant stress member, and a bottom plate cannot fully play a role, so that the utilization rate of building materials is greatly reduced.
Disclosure of Invention
The embodiment of the application provides a track traffic steel-concrete composite beam from area sound insulation function to solve the decking of traditional steel-concrete composite beam and easily split and the big problem of structural noise of steel box girder.
The application provides a track traffic steel reinforced concrete composite beam from area sound insulation function, it includes:
a steel-concrete bridge deck;
the two steel main beams are respectively arranged on two sides of the reinforced concrete bridge deck along the transverse bridge direction, and the bottom ends of the steel main beams are connected with the reinforced concrete bridge deck;
a plurality of stull, it is a plurality of the stull sets up to the interval along indulging the bridge, the both ends of stull are connected respectively in two the top of steel girder, and with the reinforced concrete decking with the steel girder encloses jointly and establishes the formation sound insulation cavity.
In some embodiments, the steel-concrete bridge deck comprises:
the steel structure part comprises a plurality of steel cross beams, and the steel cross beams are arranged at intervals along the longitudinal bridge direction;
a concrete portion provided on the steel beam; and the bottom ends of the two steel main beams are respectively connected to the two sides of the concrete part.
In some embodiments:
the concrete part comprises a first part and two second parts connected to two sides of the first part, the first part is arranged on the top surface of the steel structure part, and the two second parts are arranged on two sides of the steel structure part;
the steel structural part further includes:
the top surface of each steel cross beam is provided with one first bearing plate; and the first bearing plate is connected with the first part;
the two second pressure-bearing plate groups are arranged on two sides of the steel beam; each second bearing plate group comprises a plurality of second bearing plates, and the second bearing plates are arranged on the side faces of the steel cross beams and connected with the second parts.
In some embodiments, the first bearing plate is connected to the first portion by a shear pin; and/or the second bearing plate is connected with the second part through a shear nail.
In some embodiments, the steel main beam comprises:
the bottom end of the straight line section is connected with the reinforced concrete bridge deck, and the top end of the straight line section is obliquely arranged upwards and forms an obtuse angle with the reinforced concrete bridge deck;
and one end of the arc-shaped section is connected with the top end of the straight-line section, and the other end of the arc-shaped section is convexly arranged towards the inner side of the straight-line section and is connected with the cross brace.
In some embodiments, the steel main beam is provided with a plurality of perspective holes, the plurality of perspective holes are arranged at intervals along the longitudinal bridge direction, and transparent sealing members for sealing the perspective holes are arranged in the perspective holes.
In some embodiments, the transparent seal is an acrylic plate.
The beneficial effect that technical scheme that this application provided brought includes: the utility model provides a track traffic steel-concrete composite beam, regard as track traffic's holding surface with the steel-concrete decking, the mechanical properties advantage of two kinds of materials of full play steel construction and concrete structure, and be connected with the steel girder respectively in steel-concrete decking both sides, participate in the structure atress together with the stull, the height of track traffic steel-concrete composite beam has been improved on the whole, show reinforcing structure bearing capacity and bending rigidity, the hogging moment district decking fracture problem has effectively been avoided, structural durability has been improved, the overall mechanical properties of structure is promoted. And the stull encloses jointly with steel-concrete bridge panel and steel girder and establishes and has formed a sound insulation cavity, and the sound insulation cavity is semi-enclosed construction, and the vehicle is the travelling in sound insulation cavity, can effectively completely cut off the propagation of wheel rail noise, reduces train operation sound and pollutes. Meanwhile, the steel structure can be prefabricated in a factory, the construction quality is guaranteed, and the construction efficiency is correspondingly improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a rail transit steel-concrete composite beam with a sound insulation function provided by an embodiment of the application;
FIG. 2 is a schematic cross-sectional view of FIG. 1;
FIG. 3 is a schematic view of FIG. 2 taken in the direction D-D;
FIG. 4 is a schematic view of FIG. 3 taken along line A-A;
fig. 5 is a schematic view in the direction of C-C in fig. 3.
In the figure: 1. a steel-concrete bridge deck; 10. a steel structural portion; 100. a steel beam; 1000. a lower flange plate; 101. a first bearing plate; 102. a second pressure-bearing plate group; 11. a concrete portion; 110. a first portion; 111. a second portion; 2. a steel main beam; 20. a straight line segment; 21. an arc-shaped section; 22. a see-through hole; 3. a cross brace; 4. a sound-insulating chamber; 5. a shear pin.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1 and 2, the embodiment of the application provides a rail transit steel-concrete composite beam with a sound insulation function, which includes a steel-concrete bridge deck 1, two steel main beams 2 and a plurality of cross braces 3, wherein the two steel main beams 2 are respectively arranged on two sides of the steel-concrete bridge deck 1 along a cross bridge direction, and the bottom ends of the steel main beams 2 are connected with the steel-concrete bridge deck 1; a plurality of stull 3 are along indulging the bridge and setting up to the interval, and the both ends of stull 3 are connected respectively in the top of two steel girder 2 to enclose jointly with steel-concrete decking 1 and steel girder 2 and establish and form syllable-dividing cavity 4.
The rail transit steel-concrete composite beam of the embodiment of the application is compared with the traditional steel-concrete composite box beam:
the deck slab of the traditional steel-concrete combined box girder takes the top slab of the box girder as a driving surface, the concrete deck slab in a hogging moment area is easy to crack under the action of external load, once the deck slab cracks, the rigidity of the combined girder is reduced, and the durability of the bridge is reduced.
The rail transit steel-concrete composite beam takes the steel-concrete bridge deck 1 as a supporting surface of rail transit, so that the problem of cracking of the bridge deck is effectively solved, the structural durability is improved, and the overall mechanical performance of the structure is improved. The steel-concrete bridge deck slab 1 is driven, the steel main beams 2 are connected to two sides of the steel-concrete bridge deck slab 1 respectively, the steel main beams and the cross braces 3 form a whole, structural stress is participated in jointly, the height of the rail transit steel-concrete composite beam is improved integrally, the bending rigidity of the bridge is improved remarkably, the structural bearing capacity is enhanced, and driving comfort is good.
The steel-concrete bridge deck 1 is equivalent to a bottom plate of a structural girder, the bottom plate can be used as a bearing surface of live load, a crane can be driven, the effect of the bottom plate is fully exerted, and building materials cannot be wasted. And steel members are partially adopted, so that the construction quality of the steel members is ensured by factory prefabrication, and the construction efficiency is correspondingly improved.
In addition, the stull 3 of the track traffic steel-concrete composite beam of this application embodiment encloses with steel-concrete decking 1 and steel girder 2 jointly and establishes and has formed a sound insulation cavity 4, sound insulation cavity 4 is semi-enclosed construction, the vehicle is driven in sound insulation cavity 4, can effectively completely cut off the propagation of wheel rail noise, reduce train operation sound and pollute, and steel-concrete decking 1, steel girder 2 and stull 3's profile and molding are smooth curve, novel structure is pleasing to the eye, the view is effectual.
Referring to fig. 2 and 3, optionally, the reinforced concrete bridge deck 1 comprises a steel structure part 10 and a concrete part 11, wherein the steel structure part 10 comprises a plurality of steel cross beams 100, and the plurality of steel cross beams 100 are arranged at intervals along the longitudinal bridge direction; the concrete part 11 is arranged on the steel beam 100; and the bottom ends of the two steel main beams 2 are respectively connected to the two sides of the concrete part 11. .
The steel-concrete bridge deck 1 of this application embodiment adopts the form of steel-concrete composite beam, and the power that steel-concrete bridge deck 1 received transmits to two steel girder 2, and two steel girder 2 highly higher, has increased beam section moment of inertia, has improved the bending stiffness of roof beam greatly, has further promoted the ability of resisting the decking fracture.
Further, the concrete portion 11 includes a first portion 110, and two second portions 111 connected to both sides of the first portion 110, the first portion 110 being provided on the top surface of the steel structure portion 10, the two second portions 111 being provided on both sides of the steel structure portion 10; the steel structure part 10 further comprises a plurality of first bearing plates 101 and two second bearing plate groups 102, and the top surface of each steel beam 100 is provided with one first bearing plate 101; and the first pressure bearing plate 101 is connected to the first portion 110; the two second pressure-bearing plate groups 102 are respectively arranged at two sides of the steel beam 100; each second bearing plate group 102 comprises a plurality of second bearing plates, which are provided at the sides of the steel beam 100 and connected to the second portion 111.
In the present embodiment, the first portion 110 is carried by the first bearing plate 101, and the two second portions 111 are carried by the two second bearing plate groups 102, respectively, to prevent deformation of the steel beam 100; and the crane is driven on the first part 110, and the first part 110 and the steel beam 100 bear live load together; the two second parts 111 are respectively connected with the two steel main beams 2, and the two second parts 111 and the two steel main beams 2 share the acting force of the part of the first part 110, so that the rigidity of the steel-concrete bridge deck 1 is improved.
Referring to fig. 3 and 4, preferably, the first bearing plate 101 is connected to the first portion 110 by a shear pin 5; and/or the second bearing plate is connected to the second part 111 by means of shear pins 5.
In the embodiment of the application, the first bearing plate 101 is integrally connected with the first part 110 through the shear nails 5, so that the shearing resistance of the first part 110 is improved; the second bearing plate is connected with the second parts 111 through the shear nails 5, so that the shearing resistance of the two second parts 111 is improved.
Referring to fig. 3 and 4, alternatively, the cross section of the steel beam 100 is i-shaped, and the lower flange plate 1000 of the steel beam 100 is in the shape of an arc protruding downward.
In the embodiment of the present application, the i-shaped steel beam 100 has stronger bending resistance, and can improve the deformability of the steel-concrete bridge deck 1. And because steel-concrete bridge panel 1 receives the live load effect for a long time under, can lead to steel crossbeam 100 to be middle protruding, the concave arc in both sides, and the lower flange plate 1000 of this application embodiment is the arc of establishing of protruding down, can resist steel crossbeam 100 and be the deformation of establishing of protruding up, and steel crossbeam 100 becomes the shape of establishing of protruding up, needs become straight earlier, has strengthened steel crossbeam 100's anti bending property greatly.
Referring to fig. 2, further, the wale 3 is in an arc shape protruding upward, and the center of the wale 3 is on the same vertical line with the center of the lower flange plate 1000 of the steel beam 100.
The erection of the wale 3 of this application embodiment has strengthened the joint strength between two steel girder 2, and the wale 3 is the arc of establishing of protruding up, can resist because the pull force of the steel girder 2 of the gravity of wale 3 and both sides, and the downward convex trend can appear in wale 3, consequently this application embodiment designs into the arc of establishing of protruding up with wale 3, can resist the pulling force of self gravity and steel girder 2, avoids the 3 too big and warp of the degree of curvature of wale.
Referring to 5, the width of the cross brace 3 is 0.6m, the cross brace is arranged at intervals of 6m along the longitudinal direction of the bridge, the cross brace adopts a box-shaped cross section and comprises an upper top plate, a lower bottom plate and two side webs for connecting the top plate and the bottom plate, and the three are welded to form a box-shaped steel structure. The top plate and the bottom plate of the steel beam 100 are circular curves, the radius of the curves is consistent with that of the lower flange plate 1000 of the steel beam, and the steel beam and the bottom plate are both made by bending steel plates. The attractive appearance of the whole bridge is ensured, the modeling is novel and attractive, and the landscape effect is good.
Referring to fig. 4, further, the steel girder 2 comprises a straight line section 20 and an arc section 21, the bottom end of the straight line section 20 is connected with the steel-concrete bridge deck 1, and the top end of the straight line section 20 is arranged obliquely upwards and forms an obtuse angle with the steel-concrete bridge deck 1; one end of the arc section 21 is connected with the top end of the straight section 20, and the other end is protruded towards the inner side of the straight section 20 and connected with the cross brace 3.
If the cross brace 3 is connected with the steel main beam 2 at a right angle, the corner is required to be welded, and the welding defect or deformation is easy to occur in the place with the welding seam. Therefore, the top end of the steel main beam 2 of the embodiment of the application adopts the design of the arc-shaped section 21, the two steel plates can be directly bent to form the intermediate connection clapboard and the stiffening rib, the strength of the bent part is higher than that of the welded part, the processing is convenient and fast, and the appearance is more attractive than that of the welded part.
And the bottom of the straightway 20 of steel girder 2 is connected with steel-concrete decking 1, the top slope upwards sets up, and be obtuse angle circular arc transition between the top surface with steel-concrete decking 1, and also be the obtuse angle between straightway 20 and the side of steel-concrete decking 1, compare the right angle setting, the antitorque moment of inertia in cross-section increases, the antitorque rigidity in cross-section also correspondingly increases, can improve the bridge performance of shimmying simultaneously, effectively eliminate the vortex phenomenon, the wind resistance performance is better relatively, the molding is more graceful.
Referring to fig. 1 and 3, a plurality of perspective holes 22 are formed in the steel main beam 2, the plurality of perspective holes 22 are arranged at intervals in the longitudinal bridge direction, a transparent sealing member for sealing the perspective holes 22 is arranged in the perspective holes 22, and the transparent sealing member is an acrylic plate.
In the embodiment of the application, the perspective hole 22 is arranged, and the transparent sealing piece is adopted to seal the perspective hole 22, so that the material consumption can be reduced, and the cost can be reduced. Effectively reduce the noise pollution generated by train running.
Meanwhile, the rail transit reinforced concrete composite beam provided by the embodiment of the application can be popularized and applied to beam bridges, arch bridges, cable-stayed bridges, suspension bridges and the like. In addition, the steel-concrete bridge deck 1 of the present application corresponds to the floor of the height-variable box girder, and the floor functions as a bearing surface for live loads, and thus, the floor does not waste building materials.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. The utility model provides a from track traffic steel reinforced concrete composite beam who takes sound insulation function which characterized in that, it includes:
a steel-concrete bridge deck (1);
the two steel main beams (2) are respectively arranged on two sides of the reinforced concrete bridge deck (1) along the transverse bridge direction, and the bottom ends of the steel main beams (2) are connected with the reinforced concrete bridge deck (1);
a plurality of stull (3), it is a plurality of stull (3) are along indulging the bridge and setting up to the interval, the both ends of stull (3) are connected respectively in two the top of steel girder (2), and with steel-concrete decking (1) with steel girder (2) enclose jointly and establish and form syllable-dividing cavity (4).
2. The rail transit steel-concrete composite beam with the sound insulation function as claimed in claim 1, wherein the steel-concrete bridge deck (1) comprises:
the steel structure part (10) comprises a plurality of steel cross beams (100), and the steel cross beams (100) are arranged at intervals along the longitudinal bridge direction;
a concrete portion (11) provided on the steel beam (100); and the bottom ends of the two steel main beams (2) are respectively connected to the two sides of the concrete part (11).
3. The rail transit steel-concrete composite beam with the sound insulation function as claimed in claim 2, wherein:
the concrete part (11) comprises a first part (110) and two second parts (111) connected to two sides of the first part (110), the first part (110) is arranged on the top surface of the steel structure part (10), and the two second parts (111) are arranged on two sides of the steel structure part (10);
the steel structural part (10) further comprises:
a plurality of first bearing plates (101), wherein the top surface of each steel beam (100) is provided with one first bearing plate (101); and the first bearing plate (101) is connected with the first part (110);
the two second pressure-bearing plate groups (102), the two second pressure-bearing plate groups (102) are respectively arranged on two sides of the steel cross beam (100); each second bearing plate group (102) comprises a plurality of second bearing plates which are arranged on the lateral surface of the steel beam (100) and connected with the second part (111).
4. The rail transit steel-concrete composite beam with the sound insulation function according to claim 3, wherein the first bearing plate (101) is connected with the first portion (110) through a shear pin (5); and/or the second bearing plate is connected with the second part (111) through a shear nail (5).
5. The rail transit steel-concrete composite beam with the sound insulation function as recited in claim 1, wherein the steel main beam (2) comprises:
the bottom end of the straight line section (20) is connected with the reinforced concrete bridge deck (1), and the top end of the straight line section (20) is obliquely arranged upwards and forms an obtuse angle with the reinforced concrete bridge deck (1);
and one end of the arc-shaped section (21) is connected with the top end of the straight line section (20), and the other end of the arc-shaped section is convexly arranged towards the inner side of the straight line section (20) and is connected with the cross brace (3).
6. The rail transit steel-concrete composite beam with the sound insulation function as claimed in claim 1, wherein a plurality of perspective holes (22) are formed in the steel main beam (2), the plurality of perspective holes (22) are arranged at intervals along a longitudinal bridge direction, and transparent sealing members for sealing the perspective holes (22) are arranged in the perspective holes (22).
7. The rail transit steel-concrete composite beam with the sound insulation function according to claim 6, wherein the transparent sealing member is an acrylic plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110112152.0A CN112921784A (en) | 2021-01-27 | 2021-01-27 | Rail transit steel-concrete composite beam with sound insulation function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110112152.0A CN112921784A (en) | 2021-01-27 | 2021-01-27 | Rail transit steel-concrete composite beam with sound insulation function |
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| CN112921784A true CN112921784A (en) | 2021-06-08 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113668356A (en) * | 2021-08-30 | 2021-11-19 | 广东省铁路规划设计研究院有限公司 | Tank-box mixed beam and application thereof |
| CN114934459A (en) * | 2022-05-16 | 2022-08-23 | 中海环境科技(上海）股份有限公司 | Sound barrier structure for reducing noise of rail transit secondary structure and design method |
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| CN206815165U (en) * | 2017-05-10 | 2017-12-29 | 北京市市政工程设计研究总院有限公司 | Track traffic steel reinforced concrete combines trough girder |
| CN110331646A (en) * | 2019-07-02 | 2019-10-15 | 中铁大桥勘测设计院集团有限公司 | A kind of urban track traffic bondbeam and its construction method |
| CN110820517A (en) * | 2019-11-25 | 2020-02-21 | 西南交通大学 | Assembled railway tubular beam |
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| CN113668356A (en) * | 2021-08-30 | 2021-11-19 | 广东省铁路规划设计研究院有限公司 | Tank-box mixed beam and application thereof |
| CN114934459A (en) * | 2022-05-16 | 2022-08-23 | 中海环境科技(上海）股份有限公司 | Sound barrier structure for reducing noise of rail transit secondary structure and design method |
| CN114934459B (en) * | 2022-05-16 | 2023-09-01 | 中海环境科技(上海）股份有限公司 | Sound barrier structure for reducing noise of secondary structure of rail transit and design method |
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