On-arch stand column drainage structure of deck type reinforced concrete arch bridge

Abstract

The utility model relates to the technical field of deck type reinforced concrete arch bridge structures, in particular to an on-arch stand column drainage structure of a deck type reinforced concrete arch bridge, which comprises a drainage platform, the drainage platform comprises a drainage slope and a diversion slope, and the drainage slope is obliquely intersected with the side wall of the acute angle side of an on-arch stand column. One side of the flow guide slope intersects with the drainage slope, the other side of the flow guide slope intersects with the top face of the arch rib, the drainage slope and the side wall of the on-arch stand column are arranged at an obtuse angle, the flow guide slope and the drainage slope are arranged at an obtuse angle, and a connecting steel bar is embedded in the drainage platform and connected with the on-arch stand column. According to the above-arch stand column drainage structure of the deck type reinforced concrete arch bridge, drainage and diversion of the acute angle side of the above-arch stand column are achieved by arranging the drainage slope and the diversion slope, accumulated water and accumulated mud are prevented from being formed on the side of the above-arch stand column, and a vegetation growing area is prevented from being formed; and the appearance and the durability of the column foot of the arch upper stand column of the deck type reinforced concrete arch bridge are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of top-bearing reinforced concrete arch bridge structures, in particular to an arch column drainage structure of a top-bearing reinforced concrete arch bridge. Background Art

[0002] In the top-supported reinforced concrete arch bridge structure, the bridge is supported by columns above the arch ribs. Since the arch ribs are curved, obtuse and acute angles will be formed on the projection surface between the columns on the arch and the arch ribs. The acute angles cannot be drained along the longitudinal direction of the arch ribs, which leads to water or soil accumulation on the acute angles of the column feet of the arch columns during long-term operation, and vegetation growth on this side, which not only affects the overall appearance of the arch bridge, but also greatly reduces the durability of the arch bridge. Utility Model Content

[0003] The purpose of the utility model is to overcome the technical problem in the prior art that the sharp-angled sides of the arch columns of the top-supported reinforced concrete arch bridge are prone to water or soil accumulation, forming vegetation growth, and affecting the appearance and durability of the arch bridge, and to provide a drainage structure for the arch columns of the top-supported reinforced concrete arch bridge.

[0004] In order to achieve the above-mentioned utility model purpose, the utility model provides the following technical solutions:

[0005] A drainage structure for an arch column of a top-supported reinforced concrete arch bridge comprises a drainage platform, wherein the drainage platform comprises a drainage slope and a diversion slope, wherein the drainage slope obliquely intersects with the side wall of the arch column on the acute angle side, the diversion slope intersects with the drainage slope on one side and intersects with the top surface of the arch rib on the other side, the drainage slope is arranged at an obtuse angle to the side wall of the arch column, the diversion slope is arranged at an obtuse angle to the drainage slope, connecting steel bars are embedded in the drainage platform, and the connecting steel bars are connected to the arch column.

[0006] The utility model discloses a drainage structure for an arch column of a top-supported reinforced concrete arch bridge. By arranging a drainage slope and a diversion slope, drainage and diversion are achieved on the acute-angle side of the arch column, thereby avoiding the formation of water and mud accumulation on the side of the arch column, avoiding the formation of a vegetation growth area, and ensuring the appearance and durability of the column foot of the arch column of the top-supported reinforced concrete arch bridge.

[0007] As a preferred solution of the utility model, the drainage slope and the side wall of the arch column are in arc transition, and the drainage slope and the diversion slope are in arc transition, so as to improve the drainage smoothness.

[0008] As a preferred solution of the utility model, the top surface of the diversion slope is inclined in both the transverse and longitudinal directions of the bridge to avoid water accumulation on the drainage platform.

[0009] As a preferred solution of the utility model, the top surface of the diversion slope has a slope of not less than 1% in the transverse and longitudinal directions of the bridge, so as to ensure the drainage capacity of the diversion slope and avoid water accumulation.

[0010] As a preferred solution of the utility model, the intersection line of the drainage slope and the arch column is not higher than the solid section of the arch column, the width of the drainage platform in the transverse direction of the bridge is the same as that of the arch column, and the length of the drainage slope in the longitudinal direction of the bridge is not less than 30 cm. The drainage platform forms a drainage diversion area of ​​sufficient width on the acute angle side of the arch foot of the arch column.

[0011] As a preferred solution of the utility model, the connecting steel bar includes stirrups surrounding the upper arch column, the stirrups surround the upper arch column and extend into the arch rib, so that the drainage platform is stably connected to the upper arch column and the structural stability of the drainage platform is improved.

[0012] As a preferred solution of the utility model, the connecting steel bar includes a plurality of first straight bars arranged at intervals, one end of the first straight bar extends into the arch column, and the other end passes through the drainage platform and then extends into the arch rib, and the plurality of first straight bars are arranged in a horizontal and vertical direction, and the first straight bars are parallel to the diversion slope, so as to improve the impact resistance of the top surface of the diversion slope and realize the stable connection between the diversion slope and the arch column.

[0013] As a preferred solution of the utility model, the connecting steel bar includes a plurality of second straight bars arranged at intervals, one end of the second straight bar extends into the arch column, and the other end passes through the drainage slope and then extends into the diversion slope, the second straight bar is parallel to the drainage slope, and the first straight bar is connected to the second straight bar, so as to improve the impact resistance of the drainage slope and realize the stable connection between the drainage slope, the diversion slope and the arch column.

[0014] As a preferred solution of the utility model, the connecting steel bar includes a plurality of vertical bars, the top of the vertical bars extend into the drainage platform, the bottom of the vertical bars extend into the arch rib, the vertical bars are connected to the first straight bars and the second straight bars, and the vertical bars are connected to the steel bars in the arch rib, so as to achieve a stable connection between the drainage platform and the arch rib.

[0015] As a preferred solution of the utility model, the connecting steel bar includes a plurality of transverse bars arranged at intervals, the transverse bars are arranged along the transverse bridge direction, the transverse bars connect the stirrups, the first straight bars and the vertical bars, and the transverse bars are arranged close to the top surface of the diversion slope, so as to further improve the impact resistance of the top surface of the diversion slope and improve the overall structural stability of the drainage platform.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The utility model discloses a drainage structure for an arch column of a top-supported reinforced concrete arch bridge. By arranging a drainage slope and a diversion slope, drainage and diversion are achieved on the acute-angle side of the arch column, thereby avoiding the formation of water and mud accumulation on the side of the arch column, avoiding the formation of a vegetation growth area, and ensuring the appearance and durability of the column foot of the arch column of the top-supported reinforced concrete arch bridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of a drainage structure of an arch column of a deck-type reinforced concrete arch bridge according to Example 1;

[0019] Figure 2 for Figure 1 A schematic diagram of the structure with a partial enlargement at the center;

[0020] Figure 3 is a front view of the connecting steel bars described in Example 2;

[0021] Figure 4 is a top view of the connecting steel bars described in Example 2;

[0022] Markings in the figure: 1-drainage platform, 11-drainage slope, 12-diversion slope, 2-connecting steel bars, 21-stirrups, 22-first straight bars, 23-second straight bars, 24-vertical bars, 25-transverse bars, 3-arch columns, 4-arch ribs. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below in combination with test examples and specific implementation methods. However, this should not be understood as the scope of the above subject matter of the present invention being limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

[0024] In the description of the specific embodiments of the present invention, unless otherwise specified, the terms indicating the orientation or position relationship such as "upper", "lower", "left", "right", "center", "inside", "outside", etc. are all expressions based on the orientation or position relationship shown in the drawings, or the orientation or position relationship when the product / equipment / device of the utility model is usually used. These terms of orientation or position relationship are only for the convenience of describing the scheme of the utility model or simplifying the description in the specific embodiments, so that technicians can quickly understand the scheme, rather than indicating or implying that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific position relationship, and therefore cannot be understood as a limitation on the present invention.

[0025] In addition, if the terms "horizontal", "vertical", "overhanging", "parallel" and the like appear, it does not mean that the corresponding devices / components / elements are required to be absolutely horizontal or vertical or overhanging or parallel, but may be slightly tilted or have deviations. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but may be slightly tilted. Alternatively, it can be simplified to mean that the corresponding devices / components / elements are set in directions such as "horizontal", "vertical", "overhanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, and more preferably an error / deviation within ±4%. As long as the corresponding devices / components / elements are within the error / deviation range, they can still achieve their functions in the solution of the utility model.

[0026] In addition, the expressions “first”, “second”, “third”, etc., which appear in the terms, are merely used to distinguish the description of the same or similar components and should not be understood as emphasizing or implying the relative importance of specific components.

[0027] In addition, in the description of the embodiments of the present invention, "several", "multiple" and "a number" represent at least 2. It can be any number such as 2, 3, 4, 5, 6, 7, 8, 9, and even more than 9.

[0028] In addition, in the description of the technical solution of the utility model, unless otherwise clearly specified / defined / restricted, the terms "set", "install", "connect", "connected", "provided with", "laid", and "arranged" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, and can be welding, riveting, bolting, threading, and other commonly used connection means in the field. This connection can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal communication of two components.

[0029] Example 1

[0030] like Figure 1-Figure 4As shown, the present embodiment is a drainage structure for an arch column of a top-supported reinforced concrete arch bridge, which realizes drainage and diversion of the acute-angled side of the arch column 3 by arranging a drainage platform 1 in the acute-angled space formed by the arch column 3 and the arch rib 4. Specifically, the drainage platform 1 includes a drainage slope 11 and a diversion slope 12. The drainage slope 11 obliquely intersects with the side wall of the acute-angled side of the arch column 3, one side of the diversion slope 12 intersects with the drainage slope 11, and the other side intersects with the top surface of the arch rib 4. The drainage slope 11 is set at an obtuse angle to the side wall of the arch column 3, and the diversion slope 12 is set at an obtuse angle to the drainage slope 11. A connecting steel bar 2 is embedded in the drainage platform 1, and the connecting steel bar 2 is connected to the arch column 3.

[0031] The drainage structure of the arch column of the top-bearing reinforced concrete arch bridge of the present embodiment, the drainage slope 11 is an inclined surface inclined along the side wall of the acute angle side of the arch column 3, the diversion slope 12 connects the drainage slope 11 and the inclined surface of the top surface of the arch rib 4, an obtuse angle is formed between the top surface of the drainage slope 11 and the side wall of the acute angle side of the arch column 3, an obtuse angle is formed between the top surface of the drainage slope 11 and the top surface of the diversion slope 12, and an obtuse angle is formed between the top surface of the diversion slope 12 and the top surface of the arch rib 4, so that there is no acute angle position on the top surface of the drainage platform 1, rainwater and soil falling on the drainage platform 1 are not easy to stay, and rainwater and soil are not easy to accumulate, so as to avoid the formation of vegetation growth area, thereby ensuring the appearance and durability of the column foot of the arch column 3 of the top-bearing reinforced concrete arch bridge. At the same time, the drainage platform 1 is connected to the arch column 3 by the built-in connecting steel bar 2, so that synchronous construction can be carried out during the construction of the arch bridge, so as to realize the connection of the drainage platform 1 and the arch column 3 as a whole, facilitate the setting of the drainage platform 1, and improve the structural stability and durability of the drainage platform 1.

[0032] The arch column drainage structure of a top-supported reinforced concrete arch bridge of this embodiment has a simple structure and is easy to form. It can be easily constructed and added to an existing top-supported reinforced concrete arch bridge, and the durability of the arch column 3 of the arch bridge can be significantly improved through local structural adjustment.

[0033] like Figure 2 As shown, in this embodiment, the top surface of the diversion slope 12 is preferably inclined in both the transverse and longitudinal directions, and the slope of the top surface of the diversion slope 12 in the transverse and longitudinal directions is not less than 1%, that is, the diversion slope 12 can not only divert along the longitudinal direction, but also along the transverse direction, which can effectively avoid water accumulation on the drainage platform 1.

[0034] like Figure 2As shown, in the present embodiment, it is preferred that the drainage slope 11 and the side wall of the arch column 3 have an arc-shaped transition, and the drainage slope 11 and the diversion slope 12 have an arc-shaped transition, that is, an arc chamfer is set at the intersection of the drainage slope 11 and the side wall of the arch column 3, and an arc chamfer is set at the intersection of the drainage slope 11 and the diversion slope 12, so that the falling rainwater can flow more smoothly along the drainage slope 11 to the diversion slope 12, which can further improve the drainage and diversion effect of the drainage platform 1.

[0035] Specifically, since the diversion slope 12 has a slope, the arc-shaped transition surface between the drainage slope 11 and the diversion slope 12 preferably has a characteristic of gradually increasing width from the higher side to the lower side of the slope, so as to further ensure the drainage and diversion effect of the drainage platform 1.

[0036] In other embodiments, it is preferred that an arc-shaped transition surface is also provided at the intersection of the diversion slope 12 and the top surface of the arch rib 4, and the arc-shaped transition surface also has the characteristic of gradually increasing width in the direction from the higher side to the lower side of the slope, so that rainwater is not easily retained on the drainage platform 1, thereby further improving the overall drainage and diversion effect of the drainage platform 1.

[0037] In this embodiment, the transverse bridge direction is the width direction of the top-supported reinforced concrete arch bridge, and the longitudinal bridge direction is the length direction of the top-supported reinforced concrete arch bridge. Preferably, the intersection line of the drainage slope 11 and the arch column 3 is not higher than the solid section of the arch column 3. The width of the drainage platform 1 in the transverse bridge direction is the same as that of the arch column 3, and the length of the drainage slope 11 along the longitudinal bridge direction is not less than 30 cm. The drainage platform 1 forms a drainage diversion area of ​​sufficient width on the acute angle side of the arch foot of the arch column 3. Taking rainwater as an example, rainwater or soil falling on the drainage platform 1 can fall on the drainage slope 11 with a high probability, and accelerate along the drainage slope 11 to fall on the diversion slope 12, and then the rainwater is discharged through the inclined state of the diversion slope 12 in the transverse bridge direction and the longitudinal bridge direction, without forming water accumulation on the top surface of the drainage platform 1.

[0038] Example 2

[0039] like Figure 1-Figure 4As shown, in the present embodiment, a drainage structure for an arch column of a top-supported reinforced concrete arch bridge is provided. On the basis of Embodiment 1, the connecting steel bar 2 comprises a stirrup 21 surrounding the arch column 3, the stirrup 21 is arranged around the arch column 3 and extends into the arch rib 4; the connecting steel bar 2 comprises a plurality of first straight bars 22 arranged at intervals, one end of the first straight bar 22 extends into the arch column 3, and the other end passes through the drainage platform 1 and then extends into the arch rib 4, the plurality of first straight bars 22 are arranged in a transverse and vertical direction, and the first straight bars 22 are parallel to the diversion slope 12; the connecting steel bar 2 comprises a plurality of second straight bars 23 arranged at intervals, one end of the second straight bar 23 extends into the arch column 3, and the other end passes through the drainage platform 1 and then extends into the arch rib 4, the plurality of first straight bars 22 are arranged in a transverse and vertical direction, and the first straight bars 22 are parallel to the diversion slope 12; the connecting steel bar 2 comprises a plurality of second straight bars 23 arranged at intervals, After passing the drainage slope 11, it extends into the diversion slope 12, the second straight reinforcement 23 is parallel to the drainage slope 11, and the first straight reinforcement 22 is connected to the second straight reinforcement 23; the connecting steel bar 2 includes a plurality of vertical reinforcements 24, the top of the vertical reinforcement 24 extends into the drainage platform 1, and the bottom extends into the arch rib 4, the vertical reinforcement 24 is connected to the first straight reinforcement 22 and the second straight reinforcement 23, and the vertical reinforcement 24 is connected to the reinforcement in the arch rib 4; the connecting steel bar 2 includes a plurality of transverse reinforcements 25 arranged at intervals, the transverse reinforcement 25 is arranged along the transverse bridge direction, the transverse reinforcement 25 connects the stirrups 21, the first straight reinforcement 22 and the vertical reinforcement 24, and the transverse reinforcement 25 is arranged close to the top surface of the diversion slope 12.

[0040] The embodiment of the present invention is a drainage structure of an arch column of a top-bearing reinforced concrete arch bridge, wherein the connecting steel bar 2 includes a steel cage structure composed of a stirrup 21, a first straight bar 22, a second straight bar 23, a vertical bar 24, and a transverse bar 25. The connecting steel bar 2 is embedded in the drainage platform 1 as the internal skeleton of the drainage platform 1. The stirrup 21 is arranged around the outer wall of the arch column 3 to connect the drainage platform 1 to the arch column 3, so that the drainage platform 1 and the arch column 3 are connected together; the arch column 3, the drainage platform 1 and the arch rib 4 are connected together by the first straight bar 22, and the drainage platform 1 is inclined along the top surface of the diversion slope 12. The structure of the drainage platform 1 is reinforced in an oblique direction; the arch columns 3, the drainage platform 1 and the arch ribs 4 are connected together by the second straight reinforcement 23, and the structure of the drainage platform 1 is reinforced along the inclined direction of the top surface of the drainage slope 11; the vertically distributed first straight reinforcement 22, the second straight reinforcement 23 and the steel bars in the arch rib 4 are connected together by the vertical reinforcement 24, and the transversely distributed first straight reinforcement 22 and the vertical reinforcement 24 are further connected together by the transverse reinforcement 25 to form a stable steel cage structure for achieving the connection stability between the drainage platform 1 and the arch columns 3 and the arch ribs 4, and ensuring the durability of the drainage platform 1.

[0041] Specifically, it can be understood that the stirrups 21, the first straight bars 22, the second straight bars 23, the vertical bars 24 and the transverse bars 25 can be adjusted in terms of the number and state of arrangement according to actual conditions.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A drainage structure for an arch column of a deck reinforced concrete arch bridge, characterized in that: The invention comprises a drainage platform (1), wherein the drainage platform (1) comprises a drainage slope (11) and a diversion slope (12), wherein the drainage slope (11) obliquely intersects with the side wall of the arch column (3) at an acute angle, wherein one side of the diversion slope (12) intersects with the drainage slope (11) and the other side intersects with the top surface of the arch rib (4), wherein the drainage slope (11) and the side wall of the arch column (3) are arranged at an obtuse angle, wherein the diversion slope (12) and the drainage slope (11) are arranged at an obtuse angle, and wherein a connecting steel bar (2) is embedded in the drainage platform (1), wherein the connecting steel bar (2) is connected to the arch column (3).

2. The arch column drainage structure of a deck reinforced concrete arch bridge according to claim 1, characterized in that: The drainage slope (11) and the side wall of the arch column (3) are in an arc-shaped transition, and the drainage slope (11) and the diversion slope (12) are in an arc-shaped transition.

3. The arch column drainage structure of a deck reinforced concrete arch bridge according to claim 1, characterized in that: The top surface of the guide slope (12) is inclined in both the transverse bridge direction and the longitudinal bridge direction.

4. The arch column drainage structure of a deck reinforced concrete arch bridge according to claim 3, characterized in that: The top surface of the diversion slope (12) has a slope of not less than 1% in the transverse and longitudinal directions of the bridge.

5. The arch column drainage structure of a deck reinforced concrete arch bridge according to claim 4, characterized in that: The intersection line of the drainage slope (11) and the arch column (3) is not higher than the solid section of the arch column (3), the width of the drainage platform (1) in the transverse direction of the bridge is the same as that of the arch column (3), and the length of the drainage slope (11) in the longitudinal direction of the bridge is not less than 30 cm.

6. The arch column drainage structure of a deck reinforced concrete arch bridge according to any one of claims 1 to 5, characterized in that: The connecting steel bar (2) comprises stirrups (21) surrounding the arch column (3); the stirrups (21) are arranged around the arch column (3) and extend into the arch rib (4).

7. The arch column drainage structure of a deck reinforced concrete arch bridge according to claim 6, characterized in that: The connecting steel bar (2) comprises a plurality of first straight bars (22) arranged at intervals, one end of the first straight bar (22) extending into the arch column (3), and the other end passing through the drainage platform (1) and then extending into the arch rib (4), the plurality of first straight bars (22) being arranged in a transverse and vertical direction, and the first straight bars (22) being parallel to the diversion slope (12).

8. The arch column drainage structure of a deck reinforced concrete arch bridge according to claim 7, characterized in that: The connecting steel bar (2) comprises a plurality of second straight bars (23) arranged at intervals, one end of the second straight bar (23) extending into the arch column (3), and the other end passing through the drainage slope (11) and then extending into the diversion slope (12), the second straight bar (23) being parallel to the drainage slope (11), and the first straight bar (22) being connected to the second straight bar (23).

9. The arch column drainage structure of a deck reinforced concrete arch bridge according to claim 8, characterized in that: The connecting steel bars (2) include a plurality of vertical bars (24), the tops of the vertical bars (24) extend into the drainage platform (1) and the bottoms extend into the arch ribs (4), the vertical bars (24) are connected to the first straight bars (22) and the second straight bars (23), and the vertical bars (24) are connected to the steel bars inside the arch ribs (4).

10. The arch column drainage structure of a deck reinforced concrete arch bridge according to claim 9, characterized in that: The connecting steel bar (2) comprises a plurality of transverse bars (25) arranged at intervals, the transverse bars (25) being arranged along the transverse direction of the bridge, the transverse bars (25) connecting the stirrups (21), the first straight bars (22) and the vertical bars (24), and the transverse bars (25) being arranged close to the top surface of the guide slope (12).

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