Steel bridge

Abstract

The utility model relates to a steel bridge, which belongs to the technical field of steel bridges and comprises two first piers and two second piers, and support frame bodies are arranged on the upper surfaces of the two first piers. According to the steel bridge, the construction efficiency of the bridge can be improved, the bridge body can be supported and damped through the two first plate type rubber supports and the four second plate type rubber supports, the anti-seismic property of the bridge is improved, the lower surfaces of the Y-shaped bridge piers on the left side and the right side are welded and fixed to the upper surfaces of the fixing steel blocks on the left side and the right side, and the construction progress is accelerated; the four first arch-shaped steel frames, the two second arch-shaped steel frames and the two third arch-shaped steel frames are all formed by welding or splicing steel structures, and the supporting strength and the structural strength of the Y-shaped bridge piers on the left side and the right side can be improved by pouring shrinkage compensation concrete into the Y-shaped bridge piers on the left side and the right side, so that the bridge construction period is short, and construction is convenient; the method is not affected by seasons, and practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel bridges, in particular to a steel bridge. Background Art

[0002] A steel bridge is a type of bridge that uses steel as its main structural material. It has the characteristics of high strength and high rigidity. Compared with concrete bridges, it can reduce the beam height and deadweight. The isotropy, uniform texture and large elastic modulus of steel make the working conditions of steel bridges more consistent with the assumptions in the calculation diagrams.

[0003] For example, Chinese patent CN218969732U discloses a pedestrian overpass, which belongs to the technical field of overpasses. The pedestrian overpass includes a bridge body, a first filter box, steps and a first support column. The bridge body is located above the urban road. A drainage ditch is provided on the upper surface of the bridge body. A drainage channel is also provided on the bridge body. One end of the drainage channel is connected to the drainage ditch, and the other end of the drainage channel passes through the bottom wall of the bridge body. The first filter box is installed in the drainage channel, one end of the four steps is fixedly connected to the bridge body, and the other end of the four steps is fixedly set on the sidewalk. The four steps are arranged in groups of two on the two sidewalks on both sides of the bridge body. One end of the first support column is set at the bottom of the bridge body, and the first support column is located below the drainage channel. A first water trough is provided in the first support column. Beneficial effects: water flow on the bridge deck is processed in time, reducing the risk of water overflowing the bridge deck and causing road damage, and reasonably recovering water resources, reducing resource waste.

[0004] In the prior art, bridges are generally concrete bridges, which are constructed by pouring concrete glue or splicing prefabricated concrete panels. Concrete bridges generally have a long construction period, average strength, and are affected by the seasons during construction, thereby reducing their practicality. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the utility model provides a steel bridge with the advantages of short construction period, convenient construction and no seasonal influence. It solves the problem that concrete bridges generally have long construction period, average strength, and are affected by seasons during construction, which reduces practicality.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a steel bridge, comprising two first piers and two second piers, wherein the upper surfaces of the two first piers are provided with support frames, and the upper surfaces of the left and right support frames are provided with connecting mechanisms;

[0007] The connection mechanism includes two first plate rubber bearings, a bridge body, at least two connecting steel plates, two fixed steel blocks, two Y-shaped bridge piers, and a connection assembly. The two first plate rubber bearings are both arranged on the upper surfaces of the left and right first bridge piers. The bridge body is arranged on the upper surfaces of the left and right first plate rubber bearings. At least two connecting steel plates are pre-buried inside the left and right second bridge piers. The two fixed steel blocks are pre-buried inside the left and right second bridge piers. The upper surfaces of at least two connecting steel plates are fixedly connected to the lower surfaces of the left and right fixed steel blocks. The upper surfaces of the left and right fixed steel blocks are welded and fixed to the lower surfaces of the left and right Y-shaped bridge piers.

[0008] The connecting assembly includes four first arch steel frames, two second arch steel frames, two third arch steel frames and four second plate rubber bearings. One end of the four first arch steel frames is arranged on the front and rear sides of the upper surface of the left and right support frame bodies. The opposite sides of the left and right first arch steel frames are fixedly connected to the side opposite to the left and right Y-shaped piers. The two second arch steel frames are arranged on the front and rear sides of the upper surface of the left and right Y-shaped piers. The two third arch steel frames are arranged on the upper surfaces of the front and rear second arch steel frames. The four second plate rubber bearings are arranged on the bottom walls of the left and right branch cavities of the left and right Y-shaped piers. The upper surface of the second plate rubber bearing is fixedly connected to the lower surface of the bridge body.

[0009] By adopting this technical solution, the construction period is short, the construction is convenient and is not affected by the season.

[0010] Furthermore, the bridge body includes no less than two steel box girders, and the no less than two steel box girders are welded and fixed.

[0011] By adopting this technical solution, construction efficiency can be improved.

[0012] Furthermore, the connecting steel plates, numbering not less than two, are evenly distributed inside the second bridge piers on the left and right sides.

[0013] By adopting this technical solution, the stability of the fixed steel block embedded in the second pier is improved.

[0014] Furthermore, shrinkage-compensating concrete is poured into the interiors of the left and right Y-shaped piers, and three first connecting steel columns are provided on opposite sides of the front and rear first arched steel frames.

[0015] By adopting this technical solution, the stability of the Y-shaped pier structures on the left and right sides can be improved. The Y-shaped piers are steel structure piers.

[0016] Furthermore, three second connecting steel columns are provided on opposite sides of the front and rear second arched steel frames, and three third connecting steel columns are provided on opposite sides of the front and rear third arched steel frames.

[0017] By adopting this technical solution, the stability of the connection between the front and rear second arched steel frames can be improved through the three second connecting steel columns.

[0018] Furthermore, the second arched steel frames on the front and rear sides are symmetrically distributed on the front and rear sides of the transverse central axis of the bridge body.

[0019] By adopting this technical solution, the stability of the Y-shaped pier structures on the left and right sides can be improved through the second arch steel frames on the front and rear sides.

[0020] Furthermore, the third arched steel frames on the front and rear sides are symmetrically distributed on the front and rear sides of the transverse central axis of the bridge body.

[0021] By adopting this technical solution, the stability of the second arched steel frame structures on the front and rear sides can be improved through the third arched steel frames on the front and rear sides.

[0022] Furthermore, the second arched steel frame is located on the longitudinal center axis of the bridge body.

[0023] By adopting this technical solution, the stability of the bridge structure can be improved through the second arch steel frames on the front and rear sides.

[0024] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0025] The steel bridge can set the first piers on the left and right sides on the left and right sides of the river channel, and the second piers on the left and right sides can be set on the river channel. The bridge body is welded by no less than two steel box girders, which can improve the construction efficiency of the bridge. The two first plate rubber bearings and four second plate rubber bearings can support and reduce shock to improve the seismic performance of the bridge. The lower surfaces of the left and right Y-shaped piers are welded and fixed to the upper surfaces of the left and right fixed steel blocks to improve the construction progress. The four first arch steel frames, two second arch steel frames and two third arch steel frames are all welded or spliced ​​with steel structures. By pouring shrinkage compensating concrete into the interior of the left and right Y-shaped piers, the supporting strength and structural strength of the left and right Y-shaped piers can be improved, thereby shortening the construction period of the bridge, facilitating construction, and not being affected by seasons, thereby improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the structure of the utility model;

[0027] Figure 2 This is a schematic diagram of the connection mechanism of the utility model;

[0028] Figure 3 This is a schematic diagram of the connection structure between the second plate rubber bearing and the Y-shaped bridge pier of the utility model;

[0029] Figure 4 It is a schematic diagram of the partial three-dimensional structure of the Y-shaped bridge pier of the utility model.

[0030] In the figure: 1. First bridge pier; 2. Second bridge pier; 3. Support frame; 4. Connecting mechanism; 41. First plate rubber bearing; 42. Bridge body; 43. Connecting steel plate; 44. Fixed steel block; 45. Y-shaped bridge pier; 46. First arch steel frame; 47. Second arch steel frame; 48. Third arch steel frame; 49. Second plate rubber bearing. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] See also Figure 1 In this embodiment, a steel bridge includes two first piers 1 and two second piers 2. The upper surfaces of the two first piers 1 are provided with support frames 3, and the upper surfaces of the left and right support frames 3 are provided with connecting mechanisms 4. The connecting mechanism 4 has a short construction period, is easy to construct and is not affected by seasons.

[0033] See also Figures 2 to 4 In order to shorten the construction period, facilitate the construction and be unaffected by the seasons, in this embodiment, the connecting mechanism 4 includes two first plate rubber bearings 41, a bridge body 42, no less than two connecting steel plates 43, two fixed steel blocks 44, two Y-shaped bridge piers 45 and a connecting assembly. The two first plate rubber bearings 41 are both arranged on the upper surfaces of the first bridge piers 1 on the left and right sides.

[0034] In this embodiment, the bridge body 42 is arranged on the upper surface of the first plate rubber bearings 41 on the left and right sides, and at least two connecting steel plates 43 are embedded in the interior of the second bridge piers 2 on the left and right sides. The two fixed steel blocks 44 are embedded in the interior of the second bridge piers 2 on the left and right sides. The upper surfaces of at least two connecting steel plates 43 are fixedly connected to the lower surfaces of the left and right fixed steel blocks 44, and the upper surfaces of the left and right fixed steel blocks 44 are welded and fixed to the lower surfaces of the left and right Y-shaped bridge piers 45.

[0035] In this embodiment, the support frame 3 is a steel structure support frame to improve the stability of the bridge structure.

[0036] In this embodiment, the connecting assembly includes four first arched steel frames 46, two second arched steel frames 47, two third arched steel frames 48 and four second plate rubber bearings 49. One end of the four first arched steel frames 46 is arranged on the front and rear sides of the upper surface of the left and right support frame bodies 3. The opposite sides of the left and right first arched steel frames 46 are fixedly connected to the opposite sides of the left and right Y-shaped bridge piers 45. The two second arched steel frames 47 are arranged on the front and rear sides of the upper surface of the left and right Y-shaped bridge piers 45.

[0037] In this embodiment, the two third arch steel frames 48 are both arranged on the upper surfaces of the front and rear second arch steel frames 47, and the four second plate rubber bearings 49 are both arranged on the bottom walls of the left and right branch cavities of the left and right Y-shaped piers 45. The upper surface of the second plate rubber bearings 49 is fixedly connected to the lower surface of the bridge body 42. The stability of the bridge structure can be improved through the mutual cooperation between the four first arch steel frames 46, the two second arch steel frames 47 and the two third arch steel frames 48. The bridge body 42 includes no less than two steel box girders, and no less than two steel box girders are welded and fixed. Measuring instruments are set up on the axis control points of the steel box girders to measure the axis so that the axis plane control points on each section of the steel box girder are kept in a straight line. If an error occurs, it must be adjusted under the measurement and control of the instrument to make the axis data meet the requirements. When measuring the axis, the influence of temperature and sunlight on the deformation of the steel box girder must be taken into account. It is necessary to achieve real-time positioning and real-time forward movement of the plane control points to minimize the influence of temperature and sunlight on the accuracy of the plane control points.

[0038] In this embodiment, at least two connecting steel plates 43 are evenly distributed inside the left and right second piers 2 , and the insides of the left and right Y-shaped piers 45 are both poured with shrinkage-compensating concrete.

[0039] In this embodiment, the first bridge piers 1 on the left and right sides can be set on the left and right sides of the river channel, and the second bridge piers 2 on the left and right sides can be set on the river channel. The bridge body 42 is welded by no less than two steel box girders, which can improve the construction efficiency of the bridge. The two first plate rubber bearings 41 and the four second plate rubber bearings 49 can support and reduce shock on the bridge body 42, thereby improving the seismic performance of the bridge.

[0040] In this embodiment, steel guardrails can be set on both the front and rear sides of the upper surface of the bridge body 42 to improve the safety of the bridge. At the same time, cameras can be installed. At the same time, an anti-slip structure can be set on the upper surface of the bridge body 42 to improve the anti-slip properties of the bridge deck.

[0041] In this embodiment, three first connecting steel columns are provided on opposite sides of the front and rear first arched steel frames 46, three second connecting steel columns are provided on opposite sides of the front and rear second arched steel frames 47, and three third connecting steel columns are provided on opposite sides of the front and rear third arched steel frames 48. The front and rear second arched steel frames 47 are symmetrically distributed on the front and rear sides of the transverse central axis of the bridge body 42, and the front and rear third arched steel frames 48 are symmetrically distributed on the front and rear sides of the transverse central axis of the bridge body 42. The second arched steel frame 47 is located on the longitudinal central axis of the bridge body 42.

[0042] It should be noted that the lower surfaces of the left and right Y-shaped piers 45 are welded and fixed to the upper surfaces of the left and right fixed steel blocks 44 to improve the progress of construction. The four first arch steel frames 46, the two second arch steel frames 47 and the two third arch steel frames 48 are all made of welded or spliced ​​steel structures. By pouring shrinkage-compensating concrete into the interior of the left and right Y-shaped piers 45, the supporting strength and structural strength of the left and right Y-shaped piers 45 can be improved, thereby shortening the construction period of the bridge, facilitating processing, and being unaffected by seasons, thereby improving practicality.

[0043] The working principle of the above embodiment is:

[0044] The first bridge piers 1 on the left and right sides can be set on the left and right sides of the river, and the second bridge piers 2 on the left and right sides can be set on the river. The bridge body 42 is welded by no less than two steel box girders, which can improve the construction efficiency of the bridge. The two first plate rubber bearings 41 and the four second plate rubber bearings 49 can support and reduce shock on the bridge body 42, thereby improving the seismic performance of the bridge. The four first arch steel frames 46, the two second arch steel frames 47 and the two third arch steel frames 48 can cooperate with each other to improve the bridge's In order to ensure the stability of the bridge structure, the lower surfaces of the left and right Y-shaped piers 45 are welded and fixed to the upper surfaces of the left and right fixed steel blocks 44 to improve the progress of construction. The four first arch steel frames 46, the two second arch steel frames 47 and the two third arch steel frames 48 are all made of welded or spliced ​​steel structures. By pouring shrinkage-compensating concrete into the interior of the left and right Y-shaped piers 45, the supporting strength and structural strength of the left and right Y-shaped piers 45 can be improved, thereby shortening the construction period of the bridge, facilitating processing, and being unaffected by seasons, thereby improving practicality.

Claims

1. A steel bridge comprising two first piers (1) and two second piers (2), characterized in that: The upper surfaces of the two first piers (1) are both provided with support frames (3), and the upper surfaces of the left and right support frames (3) are provided with connecting mechanisms (4); The connecting mechanism (4) comprises two first plate rubber bearings (41), a bridge body (42), a number of not less than two connecting steel plates (43), two fixed steel blocks (44), two Y-shaped bridge piers (45) and a connecting assembly, wherein the two first plate rubber bearings (41) are both arranged on the upper surfaces of the left and right first bridge piers (1), the bridge body (42) is arranged on the upper surfaces of the left and right first plate rubber bearings (41), the number of not less than two connecting steel plates (43) are both pre-buried inside the left and right second bridge piers (2), the two fixed steel blocks (44) are both pre-buried inside the left and right second bridge piers (2), the upper surfaces of the number of not less than two connecting steel plates (43) are both fixedly connected to the lower surfaces of the left and right fixed steel blocks (44), and the upper surfaces of the left and right fixed steel blocks (44) are both welded and fixed to the lower surfaces of the left and right Y-shaped bridge piers (45); The connecting assembly includes four first arch steel frames (46), two second arch steel frames (47), two third arch steel frames (48) and four second plate rubber bearings (49), one end of each of the four first arch steel frames (46) is arranged on the front and rear sides of the upper surface of the left and right support frame bodies (3), the opposite sides of the left and right first arch steel frames (46) are fixedly connected to the opposite sides of the left and right Y-shaped bridge piers (45), the two second arch steel frames (47) are arranged on the front and rear sides of the upper surface of the left and right Y-shaped bridge piers (45), the two third arch steel frames (48) are arranged on the upper surfaces of the front and rear second arch steel frames (47), the four second plate rubber bearings (49) are arranged on the bottom walls of the left and right branch cavities of the left and right Y-shaped bridge piers (45), and the upper surface of the second plate rubber bearing (49) is fixedly connected to the lower surface of the bridge body (42).

2. A steel bridge according to claim 1, characterized in that: The bridge body (42) includes no less than two steel box girders, and the no less than two steel box girders are welded and fixed.

3. The steel bridge according to claim 1, characterized in that: The connecting steel plates (43) are not less than two and are evenly distributed inside the left and right second bridge piers (2).

4. The steel bridge according to claim 1, characterized in that: Shrinkage compensating concrete is poured into the interiors of the left and right Y-shaped bridge piers (45), and three first connecting steel columns are provided on opposite sides of the front and rear first arched steel frames (46).

5. The steel bridge according to claim 1, characterized in that: Two opposite sides of the second arched steel frames (47) on the front and rear sides are provided with three second connecting steel columns, and two opposite sides of the third arched steel frames (48) on the front and rear sides are provided with three third connecting steel columns.

6. The steel bridge according to claim 1, characterized in that: The second arched steel frames (47) on the front and rear sides are symmetrically distributed on the front and rear sides of the transverse central axis of the bridge body (42).

7. The steel bridge according to claim 1, characterized in that: The third arched steel frames (48) on the front and rear sides are symmetrically distributed on the front and rear sides of the transverse central axis of the bridge body (42).

8. The steel bridge according to claim 1, characterized in that: The second arched steel frame (47) is located on the longitudinal center axis of the bridge body (42).

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