Optimized reinforced concrete arch bridge arch padding structure

Abstract

The utility model relates to the technical field of arch bridges, and discloses an optimized reinforced concrete arch bridge arch padding structure which comprises a bridge body and an arch bridge frame arranged below the bridge body, the bridge body comprises an arch ring section and bridge panel layers arranged at the two ends of a river, and the arch ring section extends in the length direction of the arch bridge frame. The bridge panel layer is arranged on the top of the arch ring section, a filling interval is formed between the bridge panel layer and the arch ring section, the filling interval is filled with a concrete layer, the top of the concrete layer abuts against the bottom of the bridge panel layer, and the bottom of the concrete layer abuts against the top of the arch ring section; and the concrete layer is filled in the filling interval, so that the load of the bridge panel layer is uniformly transferred to the arch ring section and the arch bridge frame in the later period, the situation that the load is concentrated in a local area to cause structural damage is avoided, and the problem that the arch bridge filler is non-uniform in stress is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of arch bridge, specifically, relate to optimization reinforced concrete arch bridge arch filling structure. BACKGROUND

[0002] Small span concrete arch bridge generally first sets up integral support support and formwork, then pours concrete arch ring, and further pours wall surface for arch ring reserved reinforcement, can backfill construction after reaching enough bearing capacity.

[0003] The cast-in-place reinforced concrete arch bridge has the problems of difficult guarantee of the quality of reinforced concrete pouring and the compaction degree of filling material, many procedures and long time consumption, and uneven stress due to the different heights and intervals of the main arch ring and the web arch ring after filling. UTILITY MODEL CONTENTS

[0004] The utility model discloses a reinforced concrete arch bridge arch filling structure, which aims to solve the problem of uneven stress of arch bridge filling in the prior art.

[0005] The utility model discloses a reinforced concrete arch bridge arch filling structure, which aims to solve the problem of uneven stress of arch bridge filling in the prior art.

[0006] Further, the concrete layer is made of plain concrete.

[0007] Further, the arch ring section comprises a plurality of web arch rings, and the plurality of web arch rings are sequentially and intervally arranged along the length direction of the arch bridge frame, and the top of the web arch ring abuts on the bottom of the concrete layer.

[0008] Further, the arch ring section comprises a plurality of web arch rings, and the plurality of web arch rings are sequentially and intervally arranged along the length direction of the arch bridge frame, and the top of the web arch ring abuts on the bottom of the concrete layer.

[0009] Further, the bottom of the bridge deck slab is connected with an outer side support structure, the two ends of the arch bridge frame abut on the outer side lower parts of two adjacent outer side support structures respectively, and the two adjacent outer side support structures are oppositely and intervally arranged.

[0010] Further, two ends of the arch ring segment are respectively abutted on the outer side upper part of the two adjacent outer side support structures, and the outer side wall of the concrete layer is abutted on the inner side wall of the outer side support structure.

[0011] Further, the filling space is formed by the two outer side support structures, the bridge deck layer, the arch ring segment and the arch seat.

[0012] Further, a plurality of longitudinal structure columns are arranged in the concrete layer, and the plurality of longitudinal structure columns are sequentially and spacedly arranged along the length direction of the concrete layer.

[0013] Further, the top of the longitudinal structure column is abutted on the bottom of the bridge deck layer, the bottom of the longitudinal structure column is abutted on the top of the arch seat, and a plurality of tension segments extending outward in the transverse direction are arranged on the outer side of the longitudinal structure column, and the plurality of tension segments are sequentially and spacedly arranged along the axial direction of the longitudinal structure column.

[0014] Further, the arch bridge frame and the arch ring segment are filled with a reinforced concrete stress structure.

[0015] Compared with the prior art, the optimized reinforced concrete arch bridge arch filling structure fills the concrete layer into the filling space, uniformly transmits the load of the bridge deck layer to the arch ring segment and the arch bridge frame in the later period, avoids the load concentration in the local area, causes the structure damage, and solves the problem of uneven stress of the arch bridge filling. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a front view cut structure schematic view of the optimized reinforced concrete arch bridge arch filling structure provided by the utility model;

[0017] Figure 2 is the utility model Figure 1 A is an enlarged structure schematic view.

[0018] In the figure: bridge main body 10, arch bridge frame 20, concrete layer 30, outer side support structure 40, bridge deck layer 11, arch ring segment 12, arch ring 13, arch seat 14, longitudinal structure column 31, tension segment 32. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the utility model more clear and intelligible, the following will be further described in detail by combining with the drawings and examples. It should be understood that the specific examples described here are only used to explain the utility model, and are not used to limit the utility model.

[0020] The implementation of the utility model will be described in detail by combining with the specific examples.

[0021] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0022] Reference Figures 1-2 The image shown is a preferred embodiment of the present invention.

[0023] The optimized filling structure of the reinforced concrete arch bridge includes a bridge body 10 and an arch bridge frame 20 located below the bridge body 10. The bridge body 10 includes an arch ring section 12 and bridge deck layers 11 located at both ends of the river. The arch ring section 12 extends along the length of the arch bridge frame 20. The bridge deck layer 11 is located on top of the arch ring section 12. A filling gap is formed between the bridge deck layer 11 and the arch ring section 12. The filling gap is filled with a concrete layer 30. The top of the concrete layer 30 abuts against the bottom of the bridge deck layer 11, and the bottom of the concrete layer 30 abuts against the top of the arch ring section 12.

[0024] The optimized reinforced concrete arch bridge filling structure provided above fills the filling intervals with concrete layer 30, which is intended to evenly transfer the load of the bridge deck layer 11 to the arch ring section 12 and the arch bridge frame 20 in the later stage, avoiding the load concentration in local areas and causing structural damage, and solving the problem of uneven stress in the arch bridge filling.

[0025] In this embodiment, the concrete layer 30 is made of plain concrete.

[0026] Plain concrete has relatively high durability and good density. Because it contains fewer or smaller rubble stones, there is no need to consider the placement of rubble stones during the pouring process, making it relatively easy to operate and quick to construct. It is also lighter than C20 rubble concrete, saving construction time and costs and improving the structural performance and service life of the bridge in the later stages.

[0027] In this embodiment, the arch segment 12 includes multiple interlocking arches 13, which are arranged sequentially at intervals along the length of the arch bridge frame 20. The top of each interlocking arch 13 abuts against the bottom of the concrete layer 30. This allows the load of the bridge deck layer 11 to be evenly transferred to the arch bridge frame 20.

[0028] In the embodiment, the adjacent web arches 13 are connected through the arch supports 14, the top of the arch supports 14 abuts on the bottom of the adjacent web arches 13 respectively, the top of the arch supports 14 abuts on the bottom of the concrete layer 30 at least partially, and the bottom of the arch supports 14 abuts on the top of the arch bridge 20. In this way, the load of the web arches 13 can be evenly transmitted to the arch bridge 20 through the arch supports 14, and the filling interval can be reduced through the arch supports 14, so as to reduce the filling of the concrete layer 30, and further reduce the load of the concrete layer 30 on the arch ring segment 12 and the arch bridge 20.

[0029] In the embodiment, the bottom of the bridge deck 11 is connected with the outer side support structures 40, the two ends of the arch bridge 20 abut on the outer side lower parts of the two adjacent outer side support structures 40 respectively, and the two adjacent outer side support structures 40 are arranged in relative interval. In this way, the load of the bridge deck 11 can be evenly transmitted to the two adjacent outer side support structures 40 through the arch bridge 20, so as to increase the stability of the arch bridge structure.

[0030] In the embodiment, the two ends of the arch ring segment 12 abut on the outer side upper parts of the two adjacent outer side support structures 40 respectively, and the outer side wall of the concrete layer 30 abuts on the inner side wall of the outer side support structure 40. In this way, part of the load of the bridge deck 11 can be evenly transmitted to the two adjacent outer side support structures 40 through the arch ring segment 12, so as to increase the stability of the arch bridge structure.

[0031] The filling interval is enclosed between the two outer side support structures 40, the bridge deck 11, the arch ring segment 12 and the arch supports 14.

[0032] In the embodiment, the concrete layer 30 is provided with a plurality of longitudinal structural columns 31, and the plurality of longitudinal structural columns 31 are arranged in sequence and interval along the length direction of the concrete layer 30. In this way, the strength of the structure of the concrete layer 30 can be increased through the plurality of longitudinal structural columns 31, and part of the load of the bridge deck 11 can be evenly transmitted to the arch supports 14 through the plurality of longitudinal structural columns 31.

[0033] In the embodiment, the top of the longitudinal structural column 31 abuts on the bottom of the bridge deck 11, the bottom of the longitudinal structural column 31 abuts on the top of the arch support 14, the outer side of the longitudinal structural column 31 is provided with a plurality of tension segments 32 extending outward in transverse direction, and the plurality of tension segments 32 are arranged in rotational interval along the axial direction of the longitudinal structural column 31. In this way, the bearing capacity and the anti-deformation capacity of the structure of the concrete layer 30 can be improved through the longitudinal structural column 31 cooperating with the tension segments 32, the durability and the fire resistance of the structure of the concrete layer 30 can be enhanced, and the overall performance of the structure of the concrete layer 30 can be improved.

[0034] In the embodiment, the arch bridge frame 20 and the arch ring segment 12 are filled with reinforced concrete stress structure, so that the load bearing capacity and the deformation resistance of the arch bridge frame 20 and the arch ring segment 12 are improved, the durability and the fire resistance of the arch bridge frame 20 and the arch ring segment 12 are enhanced, and the overall performance of the arch bridge frame 20 and the arch ring segment 12 is improved.

[0035] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An optimized structure of arch filler on a reinforced concrete arch bridge, characterized in that, The utility model provides a bridge structure, which comprises a bridge main body and an arch bridge frame arranged below the bridge main body, the bridge main body comprises an arch ring segment and bridge panel layers arranged at both ends of a river, the arch ring segment is arranged along the length direction of the arch bridge frame, the bridge panel layers are arranged on the top of the arch ring segment, a filling interval is formed between the bridge panel layers and the arch ring segment, a concrete layer is filled in the filling interval, the top of the concrete layer abuts against the bottom of the bridge panel layers, and the bottom of the concrete layer abuts against the top of the arch ring segment.

2. The optimized reinforced concrete arch bridge arch filler structure according to claim 1, characterized in that, The concrete layer is made of plain concrete.

3. The optimized reinforced concrete arch bridge arch filler structure according to claim 2, characterized in that, The arch ring segment comprises a plurality of web arch rings, the web arch rings are sequentially and spacedly arranged along the length direction of the arch bridge frame, and the top of the web arch ring abuts against the bottom of the concrete layer.

4. The optimized reinforced concrete arch bridge arch filler structure according to claim 3, characterized in that, The adjacent web arch rings are connected through an arch seat, the top of the arch seat abuts against the bottom of the adjacent web arch ring on both sides, the top of the arch seat at least partially abuts against the bottom of the concrete layer, and the bottom of the arch seat abuts against the top of the arch bridge frame.

5. The optimized reinforced concrete arch bridge arch filler structure according to claim 4, wherein, The bottom of the bridge panel layer is connected with an outer side support structure, the two ends of the arch bridge frame abut against the outer side lower parts of two adjacent outer side support structures, and the two adjacent outer side support structures are oppositely and spacedly arranged.

6. The optimized reinforced concrete arch bridge deck structure of claim 5, wherein, The two ends of the arch ring segment abut against the outer side upper parts of the two adjacent outer side support structures, and the outer side wall of the concrete layer abuts against the inner side wall of the outer side support structure.

7. The optimized reinforced concrete arch bridge arch filler structure according to claim 6, wherein, The filling interval is enclosed by the two outer side support structures, the bridge panel layers, the arch ring segment and the arch seat.

8. The optimized reinforced concrete arch bridge deck structure according to any one of claims 4 to 7, wherein, A plurality of longitudinal structure columns are arranged in the concrete layer, and the longitudinal structure columns are sequentially and spacedly arranged along the length direction of the concrete layer.

9. The optimized reinforced concrete arch bridge arch filler structure of claim 8, wherein, The top of the longitudinal structure column abuts against the bottom of the bridge panel layer, the bottom of the longitudinal structure column abuts against the top of the arch seat, and the outer side of the longitudinal structure column is provided with a plurality of outwardly and transversely extending tension segments, and the tension segments are spirally and spacedly arranged along the axial direction of the longitudinal structure column.

10. The optimized reinforced concrete arch bridge arch filler structure according to any one of claims 1 to 7, characterized in that, The arch bridge frame and the arch ring segment are filled with a reinforced concrete stress structure.

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