Stairway bridge abutment reinforcing steel bar structure

Abstract

The utility model relates to the technical field of stairway bridge abutments, in particular to a stairway bridge abutment reinforcing steel bar structure which comprises a bridge abutment base, a pier body is arranged at the top of the bridge abutment base, a pedestrian stairway is arranged at the top of the pier body, trolley stairways are arranged on the two sides of the pedestrian stairway, and a protective barrier is arranged on one side of each trolley stairway. A plurality of sets of first steel bar frames are embedded in the cart stairway, each first steel bar frame comprises two sets of first supporting longitudinal bars and a plurality of first stirrups, and a plurality of triangular first reinforcing plates are arranged in the two sets of first supporting longitudinal bars. According to the bridge abutment, the pier body is arranged on the bridge abutment base, the cart stairways are arranged on the two sides of the pedestrian stairway arranged on the pier body respectively, the cart stairways are used for arranging special passages for bicycles, and therefore the bridge crossing requirement of the bicycles is met.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of ladder bridge abutment, in particular to a ladder bridge abutment steel bar structure. BACKGROUND

[0002] With the increasing population density of cities, the construction of city bridges has a positive effect on the activities of people on both sides of the road, the solution to the contradiction between people and vehicles, the elimination of the safety hazards of pedestrians crossing the street, the reduction of traffic accidents and the improvement of the operation efficiency of city roads.

[0003] The bridge abutment is a component of the lower structure of the bridge, is used for supporting the upper structure of the bridge and is connected with the road, and has the functions of resisting the pressure of the filled soil behind the abutment, stabilizing the bridge head subgrade, and stably transitioning the rigidity of the road surface and the bridge surface in addition to transmitting the load of the upper structure of the bridge to the foundation.

[0004] At present, some bridge abutments are provided with ladder passages only for pedestrians to pass through, and no exclusive passage is arranged for bicycles, and therefore, further improvement can be made. CONTENT OF THE UTILITY MODEL

[0005] In order to improve the demand of bicycles for crossing the bridge, the application provides a ladder bridge abutment steel bar structure.

[0006] The ladder bridge abutment steel bar structure provided by the application adopts the following technical scheme: a ladder bridge abutment steel bar structure, comprising a bridge abutment base, a pier body is arranged on the top of the bridge abutment base, the top of the pier body is arranged in an inclined manner, a pedestrian ladder is arranged on the top of the pier body, a cart ladder is arranged on both sides of the pedestrian ladder, a protective guardrail is arranged on the side of the cart ladder away from the pedestrian ladder, the height of the cart ladder is higher than that of the pedestrian ladder, and the height of the protective guardrail is higher than that of the cart ladder.

[0007] The cart ladder is made of C40 concrete, and a plurality of groups of first steel bar frames are pre-buried in the cart ladder, the plurality of groups of first steel bar frames are arranged in an inclined and spaced manner along the top of the pier body, the first steel bar frame comprises two groups of first support longitudinal reinforcement and a plurality of first stirrups, the two groups of first support longitudinal reinforcement are distributed in an upper and lower layer and are arranged in a horizontal state along the pier body, and the plurality of first stirrups are arranged in a spaced manner along the length direction of the first support longitudinal reinforcement, and each first stirrup is used for bundling and fixing the two groups of first support longitudinal reinforcement.

[0008] A plurality of first reinforcing plates in a triangular shape are arranged in each group of first support longitudinal reinforcement, and the plurality of first reinforcing plates are arranged in a symmetrical manner.

[0009] By adopting the technical scheme, the pier body is arranged on the abutment base, the two sides of the pedestrian ladder arranged on the pier body are respectively provided with the bicycle ladder, and the bicycle ladder is used to provide a dedicated channel for the bicycle, thereby solving the bicycle crossing demand, and the bicycle ladder is made of C40 concrete, and the first steel bar frame is further arranged in the bicycle ladder, the first reinforcing plate in a triangular shape is further arranged between the first supporting longitudinal reinforcement and the first stirrup in the first steel bar frame, the overall stability and the bearing capacity of the bicycle ladder are increased by using the first reinforcing plate, and the bicycle ladder can better bear the bicycle.

[0010] Optionally, the abutment base is formed by pouring C35 concrete, and the second steel bar frame is pre-embedded in the abutment base.

[0011] The second steel bar frame comprises a plurality of second supporting longitudinal reinforcements and a plurality of second stirrups, the plurality of second supporting longitudinal reinforcements are arranged at intervals along the inner side edges of the abutment base, the plurality of second stirrups are arranged at intervals along the length direction of the second supporting longitudinal reinforcement, and each second stirrup is used to bundle and fix the plurality of second supporting longitudinal reinforcements.

[0012] By adopting the technical scheme, the abutment base is formed by pouring C35 concrete, and the second steel bar frame is pre-embedded in the abutment base, the second supporting longitudinal reinforcement and the second stirrup in the second steel bar frame are used in cooperation, and the overall structure of the abutment base is more stable.

[0013] Optionally, the pedestrian ladder is made of C40 concrete, and a plurality of third steel bar frames are pre-embedded in the pedestrian ladder, the plurality of third steel bar frames are arranged at intervals along the inclined top of the pier body, the third steel bar frame comprises a plurality of third supporting longitudinal reinforcements and a plurality of third stirrups, the plurality of third supporting longitudinal reinforcements are arranged in a horizontal state along the pier body, the plurality of third stirrups are arranged at intervals along the length direction of the third supporting longitudinal reinforcement, and each third stirrup is used to bundle and fix the plurality of third supporting longitudinal reinforcements.

[0014] By adopting the technical scheme, the pedestrian ladder is formed by pouring C40 concrete, and the third steel bar frame is pre-embedded in the pedestrian ladder, the third supporting longitudinal reinforcement and the third stirrup in the third steel bar frame are used in cooperation, and the overall structure of the pedestrian ladder is more stable.

[0015] Optionally, the pier body is formed by pouring C35 concrete, a connecting groove is arranged at the middle position of the bottom of the pier body, the connecting groove is used to connect the top of the abutment base, a fourth steel bar frame is pre-embedded in the pier body, the fourth steel bar frame comprises a plurality of fourth supporting longitudinal reinforcements and a plurality of fourth stirrups, the plurality of fourth supporting longitudinal reinforcements are arranged at intervals along the inner side edges of the pier body, and each fourth stirrup is used to bundle and fix the plurality of fourth supporting longitudinal reinforcements.

[0016] Through the above technical scheme, the pier body is formed by pouring C35 concrete, and the fourth steel frame is pre-buried, and the fourth supporting longitudinal reinforcement and the fourth stirrup in the fourth steel frame are matched to make the overall structure of the pier body more stable.

[0017] Optionally, the bottom of the abutment base is provided with two second reinforcing plates in a triangular shape on both sides respectively, and the two second reinforcing plates are symmetrically arranged.

[0018] Through the above technical scheme, the stability and bearing capacity of the second reinforcing plate in a triangular shape can be used to enhance the structural stability of the bottom of the abutment base and reduce deformation caused by external forces.

[0019] Optionally, a through drain pipe is arranged between the pedestrian ramp and the pier body.

[0020] Through the above technical scheme, the drain pipe is arranged to drain water from the pedestrian ramp located at a low place, reduce the accumulation of rainwater, and prevent the pedestrian ramp from being wet and slippery, thereby reducing the erosion of the abutment base and the pier body by water and prolonging the service life.

[0021] Optionally, the guardrail is made of stainless steel, and the guardrail is provided with tempered laminated glass.

[0022] Through the above technical scheme, the stainless steel guardrail has high strength and can withstand large pressure and impact force, and can prevent pedestrians from falling and reduce the occurrence of accidents, and the stainless steel guardrail has a longer service life.

[0023] Optionally, the stroller ramp and the upper surface of the pedestrian ramp are both paved with a granite anti-skid layer.

[0024] Through the above technical scheme, the stroller ramp and the pedestrian ramp are paved with an anti-skid layer, which increases the friction coefficient of the stroller ramp and the pedestrian ramp and reduces the occurrence of slipping on the ramp after rain or in humid weather.

[0025] In summary, the present application has the following at least one beneficial technical effect:

[0026] 1. An abutment base is provided with a pier body, and the two sides of the pedestrian ramp arranged on the pier body are provided with a stroller ramp, which provides a dedicated channel for bicycles, thereby solving the demand for bicycles to cross the bridge.

[0027] 2. The trolley ramp is poured with C40 concrete, and a first reinforcing frame is arranged in the trolley ramp, and a first reinforcing plate in a triangular shape is arranged between the first support longitudinal reinforcement and the first stirrup in the first reinforcing frame, so as to increase the overall stability and bearing capacity of the trolley ramp, so that the trolley ramp can better bear the bicycle;

[0028] 3. The drain pipe is arranged to drain the accumulated water in the low pedestrian ramp, reduce the situation that the pedestrian ramp is wet and slippery due to rainwater accumulation, and reduce the erosion of the bridge abutment base and the pier by water, thereby prolonging the service life. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 Fig. 1 is a schematic diagram of the overall structure of the bridge abutment structure in the embodiment of the present application.

[0030] Figure 2 Fig. 2 is a schematic diagram of the side view structure of the pier part structure in the embodiment of the present application.

[0031] Figure 3 Fig. 3 is a schematic diagram of the structure of the pier part structure in the embodiment of the present application under a perspective view of a side view.

[0032] Legend of the drawings:

[0033] 1, bridge abutment; 11, second reinforcing frame; 111, second support longitudinal reinforcement; 112, second stirrup; 12, second reinforcing plate; 2, pier; 21, connecting groove; 22, fourth reinforcing frame; 221, fourth support longitudinal reinforcement; 222, fourth stirrup; 23, fifth support longitudinal reinforcement; 3, pedestrian ramp; 31, third reinforcing frame; 311, third support longitudinal reinforcement; 312, third stirrup; 4, trolley ramp; 41, first reinforcing frame; 411, first support longitudinal reinforcement; 412, first stirrup; 42, first reinforcing plate; 5, guardrail; 6, drain pipe. DETAILED DESCRIPTION

[0034] The following will be described in detail in combination with the accompanying drawings. Figures 1-3 The present application will be further described in detail.

[0035] The embodiment of the present application discloses a ramp bridge abutment reinforcing structure.

[0036] Reference Figures 1-3The application relates to a kind of stairway abutment steel bar structures, which comprises an abutment base 1, the top of the abutment base 1 is provided with a pier body 2, the width of the pier body 2 is greater than that of the abutment base 1, and the bottom of the pier body 2 is connected and fixed with the top of the abutment base 1, the top of the pier body 2 is inclined to install the pedestrian stairway 3, the pedestrian stairway 3 is provided with a shopping cart stairway 4 on both sides along the width direction, and a protective guardrail 5 is arranged on the side of the shopping cart stairway 4 away from the pedestrian stairway 3, the protective guardrail 5 is made of stainless steel, and tempered laminated glass is arranged on the protective guardrail 5, the protective guardrail 5 made of stainless steel has high strength and can withstand large pressure and impact force, the protective guardrail 5 is used to prevent pedestrians from falling and reduce accidents, and the protective guardrail 5 made of stainless steel has a longer service life. The height of the shopping cart stairway 4 is higher than that of the pedestrian stairway 3, and the height of the protective guardrail 5 is higher than that of the shopping cart stairway 4, in the embodiment, the slope ratio of the pedestrian stairway 3 is 1:2, and the slope ratio of the shopping cart stairway 4 is 1:4.

[0037] In addition, the upper surfaces of the shopping cart stairway 4 and the pedestrian stairway 3 are paved with granite anti-skid layers, the anti-skid layers are used to increase the friction coefficient of the shopping cart stairway 4 and the pedestrian stairway 3, and reduce the possibility of slipping of pedestrians after rain or in humid weather.

[0038] In actual use, the pier body 2 is arranged on the abutment base 1, the shopping cart stairway 4 is arranged on both sides of the pedestrian stairway 3 arranged on the pier body 2, and the shopping cart stairway 4 is used to provide a special channel for bicycles, thereby solving the demand of bicycles to cross the bridge.

[0039] Reference Figure 1 Specifically, in the embodiment, the abutment base 1 is rectangular, and is formed by pouring C35 concrete, and a second steel bar frame 11 is embedded in the abutment base 1, wherein the second steel bar frame 11 comprises a plurality of second supporting longitudinal bars 111 and a plurality of second stirrups 112, the plurality of second supporting longitudinal bars 111 are distributed along the bottom and the two side edges of the bottom of the abutment base 1, the plurality of second stirrups 112 are arranged along the length direction of the second supporting longitudinal bars 111, and each second stirrup 112 is used to bundle and fix the second supporting longitudinal bars 111; the second stirrups 112 located on both sides of the bottom of the abutment base 1 extend upwards along the height direction of the abutment base 1, enter the inside of the pier body 2 from the bottom of the pier body 2, and are connected.

[0040] In addition, triangular second reinforcing plates 12 are arranged on both sides of the bottom of the abutment base 1, the two second reinforcing plates 12 are symmetrically arranged, the two mutually perpendicular bottom surfaces of the second reinforcing plates 12 are parallel to the inner bottom surface and the side surface of the abutment base 1, the stability and bearing capacity of the triangular second reinforcing plates 12 can be used to enhance the structural stability of the bottom of the abutment base 1, and reduce deformation caused by external force.

[0041] In actual use, the abutment base 1 is formed by pouring C35 concrete, and the second reinforcing frame 11 is pre-buried. The second supporting longitudinal reinforcement 111 and the second stirrup 112 in the second reinforcing frame 11 are matched to make the overall structure of the abutment base 1 more stable.

[0042] Reference Figure 1 Specifically, in the embodiment, the pier body 2 is rectangular, and a connecting groove 21 is formed at the middle position of the bottom of the pier body 2 for connecting with the top of the abutment base 1.

[0043] The pier body 2 is formed by pouring C35 concrete, and the fourth reinforcing frame 22 is pre-buried in the pier body 2. The fourth reinforcing frame 22 includes a plurality of fourth supporting longitudinal reinforcements 221 and a plurality of fourth stirrups 222. The plurality of fourth supporting longitudinal reinforcements 221 are arranged at intervals along the top, both sides of the top and the edges of the bottom of the pier body 2 except the connecting groove 21. The plurality of fourth stirrups 222 are arranged at intervals along the length direction of the fourth supporting longitudinal reinforcements 221, and each fourth stirrup 222 is used to bundle and fix the fourth supporting longitudinal reinforcements 221. The fourth stirrups 222 located on both sides of the connecting groove 21 at the bottom of the pier body 2 extend to the second stirrup 112 along the width direction of the pier body 2, and the fifth supporting longitudinal reinforcement 23 is arranged to make the extended second stirrup 112 and the fourth stirrup 222 bundle and fix the fifth supporting longitudinal reinforcement 23.

[0044] In actual use, the pier body 2 is formed by pouring C35 concrete, and the fourth reinforcing frame 22 is pre-buried. The fourth reinforcing frame 22 includes a plurality of fourth supporting longitudinal reinforcements 221 and a plurality of fourth stirrups 222. The plurality of fourth supporting longitudinal reinforcements 221 are arranged at intervals along the top, both sides of the top and the edges of the bottom of the pier body 2 except the connecting groove 21. The plurality of fourth stirrups 222 are arranged at intervals along the length direction of the fourth supporting longitudinal reinforcements 221, and each fourth stirrup 222 is used to bundle and fix the fourth supporting longitudinal reinforcements 221. The fourth stirrups 222 located on both sides of the connecting groove 21 at the bottom of the pier body 2 extend to the second stirrup 112 along the width direction of the pier body 2, and the fifth supporting longitudinal reinforcement 23 is arranged to make the extended second stirrup 112 and the fourth stirrup 222 bundle and fix the fifth supporting longitudinal reinforcement 23.

[0045] Reference Figure 1 , 3 Specifically, in the embodiment, the pedestrian ramp 3 is in a ladder shape and is formed by pouring C40 concrete. A plurality of third reinforcing frames 31 are pre-buried in the pedestrian ramp 3. The plurality of third reinforcing frames 31 are arranged at intervals along the inclined top of the pier body 2. The plurality of third reinforcing frames 31 are arranged in a staggered manner to form a ladder shape, so that the slope ratio of the pedestrian ramp 3 is 1:2.

[0046] The third reinforcing frame 31 includes a plurality of third supporting longitudinal reinforcements 311 and a plurality of third stirrups 312. The plurality of third supporting longitudinal reinforcements 311 are laid horizontally along the pier body 2. The plurality of third stirrups 312 are arranged at intervals along the length direction of the third supporting longitudinal reinforcements 311, and each third stirrup 312 is used to bundle and fix the plurality of third supporting longitudinal reinforcements 311.

[0047] In actual use, the pedestrian ramp 3 is formed by pouring C40 concrete, and the third reinforcing frame 31 is pre-buried. The third reinforcing frame 31 includes a plurality of third supporting longitudinal reinforcements 311 and a plurality of third stirrups 312. The plurality of third supporting longitudinal reinforcements 311 are laid horizontally along the pier body 2. The plurality of third stirrups 312 are arranged at intervals along the length direction of the third supporting longitudinal reinforcements 311, and each third stirrup 312 is used to bundle and fix the plurality of third supporting longitudinal reinforcements 311.

[0048] Reference Figure 1 、 3 Specifically, in the embodiment, the trolley ramp 4 is arranged obliquely, and the height of the trolley ramp 4 is higher than that of the pedestrian ramp 3, so that the user walks on the pedestrian ramp to push the bicycle on the trolley ramp 4. The trolley ramp 4 is poured with C40 concrete, and a plurality of first reinforcing frames 41 are embedded in the trolley ramp 4. The plurality of first reinforcing frames 41 are arranged obliquely and spaced apart along the top of the pier 2, so that the slope ratio of the trolley ramp 4 is 1:4.

[0049] The first reinforcing frame 41 has two groups, and the two groups of first reinforcing frames 41 are respectively located on the two sides of the ramp. The first reinforcing frame 41 includes two groups of first support longitudinal reinforcement 411 and a plurality of first stirrups 412. The two groups of first support longitudinal reinforcement 411 are distributed in two layers, and are arranged in a horizontal state along the horizontal direction of the pier 2. The plurality of first stirrups 412 are arranged spaced apart along the length direction of the first support longitudinal reinforcement 411, and each first stirrup 412 is used to bundle and fix the two groups of first support longitudinal reinforcement 411.

[0050] In addition, in order to increase the stability of the ramp, a plurality of first reinforcing plates 42 in a triangular shape are arranged in the two groups of first support longitudinal reinforcement 411. The plurality of first reinforcing plates 42 are arranged symmetrically with each other. The top surface of the first reinforcing plate 42 and the side surface of the first reinforcing plate 42 away from the symmetric first reinforcing plate 42 are arranged parallel to the top surface and the side surface in the ramp, respectively. Thus, the first reinforcing plate 42 in a triangular shape can improve the torsional performance of the ramp, reduce deformation caused by external force, increase the overall stability and carrying capacity of the trolley ramp 4, and enable the trolley ramp 4 to better carry the bicycle.

[0051] Reference Figure 1 Specifically, in the embodiment, the two sides of the pedestrian ramp 3 are respectively provided with a drain pipe 6 penetrating from top to bottom between the pedestrian ramp 3 and the pier 2. The drain pipe 6 is arranged in the pedestrian ramp 3 perpendicular to the horizontal direction of the pedestrian ramp 3. The drain pipe 6 is used to drain the accumulated water in the low-lying pedestrian ramp 3, reduce the accumulation of rainwater, and reduce the situation that the pedestrian ramp 3 is wet and slippery, causing the pedestrian ramp to slide. At the same time, the water is drained through the drain pipe 6, reducing the erosion of the abutment base 1 and the pier 2 by water, and prolonging the service life.

[0052] The implementation principle of the ramp abutment steel structure in the embodiment is that the abutment base 1 is provided with the pier 2, the two sides of the pedestrian ramp 3 arranged on the pier 2 are respectively provided with the trolley ramp 4, and the trolley ramp 4 is used to set a dedicated channel for the bicycle, thereby solving the demand of the bicycle to cross the bridge.

[0053] The embodiments of the present application are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, wherein the same parts are denoted by the same reference numerals. Therefore, any equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A stairway landing platform reinforcement configuration, characterized by: The utility model provides a bridge abutment base (1) top is equipped with pier body (2), the pier body (2) top is inclinedly arranged, the pier body (2) top is equipped with pedestrian stairway (3), pedestrian stairway (3) both sides are equipped with pushchair stairway (4), pushchair stairway (4) is away from pedestrian stairway (3) side and is equipped with guardrail (5) uniformly, pushchair stairway (4) height is higher than pedestrian stairway (3), guardrail (5) height is higher than pushchair stairway (4); The pushchair stairway (4) is poured by C40 concrete, and a plurality of first reinforcing frames (41) are pre-buried in the pushchair stairway (4), the plurality of first reinforcing frames (41) are arranged in an inclined and spaced manner on the top of the pier body (2), the first reinforcing frame (41) comprises two groups of first support longitudinal reinforcement (411) and a plurality of first stirrups (412), the two groups of first support longitudinal reinforcement (411) are distributed in two layers in a top-down manner and are laid in a horizontal state along the pier body (2), and the plurality of first stirrups (412) are arranged in an interval along the length direction of the first support longitudinal reinforcement (411), and each first stirrup (412) is used for bundling and fixing the two groups of first support longitudinal reinforcement (411). Each group of first support longitudinal reinforcement (411) is provided with a plurality of first reinforcing plates (42) in a triangular shape, and the plurality of first reinforcing plates (42) are arranged in a symmetrical manner.

2. A stairway landing platform reinforcing construction according to claim 1, characterised in that: The bridge abutment base (1) is formed by pouring C35 concrete, and a second reinforcing frame (11) is pre-buried in the bridge abutment base (1); The second reinforcing frame (11) comprises a plurality of second support longitudinal reinforcement (111) and a plurality of second stirrups (112), the plurality of second support longitudinal reinforcement (111) are arranged in an interval along the inner edge of the bridge abutment base (1), the plurality of second stirrups (112) are arranged in an interval along the length direction of the second support longitudinal reinforcement (111), and each second stirrup (112) is used for bundling and fixing the plurality of second support longitudinal reinforcement (111).

3. A stairway landing platform reinforcing construction according to claim 1, characterized in that: The pedestrian stairway (3) is poured by C40 concrete, and a plurality of third reinforcing frames (31) are pre-buried in the pedestrian stairway (3), the plurality of third reinforcing frames (31) are arranged in an inclined and spaced manner on the top of the pier body (2), the third reinforcing frame (31) comprises a plurality of third support longitudinal reinforcement (311) and a plurality of third stirrups (312), the plurality of third support longitudinal reinforcement (311) are laid in a horizontal state along the pier body (2), the plurality of third stirrups (312) are arranged in an interval along the length direction of the third support longitudinal reinforcement (311), and each third stirrup (312) is used for bundling and fixing the plurality of third support longitudinal reinforcement (311).

4. A stairway landing platform reinforcing construction according to claim 1, characterized in that: The pier body (2) is formed by pouring C35 concrete, a connecting groove (21) is arranged at the middle position of the bottom of the pier body (2) and is used for connecting with the top of the abutment base (1); a fourth steel bar frame (22) is pre-buried in the pier body (2), the fourth steel bar frame (22) comprises a plurality of fourth support longitudinal bars (221) and a plurality of fourth stirrups (222), the plurality of fourth support longitudinal bars (221) are arranged at intervals along the inner side edge of the pier body (2), and each fourth stirrup (222) is used for bundling and fixing the plurality of fourth support longitudinal bars (221).

5. A stairway landing platform reinforcing construction according to claim 2, wherein: Second reinforcing plates (12) in the shape of triangles are arranged on the two sides of the bottom of the abutment base (1).

6. A stairway landing platform reinforcing construction according to claim 1, characterized in that: A through water drain pipe (6) is arranged between the pedestrian ladder (3) and the pier body (2).

7. A stairway landing platform reinforcing construction according to claim 1, characterized in that: The guardrail (5) is made of stainless steel, and tempered laminated glass is arranged on the guardrail (5).

8. A stairway landing platform reinforcing construction according to claim 1, characterized in that: A granite anti-skid layer is arranged on the upper surfaces of the trolley ladder (4) and the pedestrian ladder (3).

Images