A reinforcing device for a steel structure bridge guardrail

Abstract

This application relates to the technical field of steel structure bridges and discloses a reinforcement device for steel structure bridge guardrails, including a first reinforcement rod, a second reinforcement rod, and support rods. Two rows of support rods are arranged on both sides of the bridge. Multiple support rods in one row are connected at their lower ends to the same connecting rod, which is fixedly installed on the cap beam. The number of the first and second reinforcement rods corresponds one-to-one with the number of support rods. The first reinforcement rod is installed on the support rod and is inclined downwards. The upper end of the first reinforcement rod is fixedly connected to the support rod. The second reinforcement rod is installed on a connecting sleeve. When the guardrail is inserted into the connecting sleeve and abuts against the bridge deck of the main beam, the second reinforcement rod is in an inclined downward state, with its lower end abutting against the lower end of the first reinforcement rod. In this application, the guardrail and the main beam of the bridge are only in contact; therefore, the main beam will not be damaged when the guardrail is replaced.

Description

Technical Field

[0001] This application relates to the technical field of steel structure bridges, and in particular to a reinforcement device for steel structure bridge railings. Background Technology

[0002] A steel structure bridge is a bridge whose main load-bearing structure is made of steel. The main load-bearing structure includes the cap beam and the main girder. After the main girder is installed on the cap beam, guardrails are installed on both sides of the main girder to ensure the safety of pedestrians and vehicles. These guardrails are generally also made of steel. The guardrails consist of vertical guardrails and horizontal bars. The horizontal bars extend along the length of the bridge, and the guardrails are evenly spaced on the horizontal bars. When the guardrails are fixed to the main girder, they are generally fixed by welding or bolts.

[0003] Regarding the aforementioned technologies, the inventors discovered that when a vehicle collides with a guardrail, because the guardrail and the main bridge beam are rigidly connected, the main bridge beam will also suffer some damage when the guardrail is damaged and needs to be disassembled and replaced. Summary of the Invention

[0004] In order to reduce the damage to the main beam of the bridge when the guardrail is damaged, this application provides a reinforcement device for steel structure bridge guardrails.

[0005] This application provides a reinforcement device for steel structure bridge railings, which adopts the following technical solution:

[0006] A reinforcement device for a steel structure bridge railing is installed on a steel structure bridge, which includes a cap beam and a main beam. A railing is installed on the main beam. The railing includes a guardrail and a horizontal bar connected to the guardrail. Vertical bars are connected to both ends of the horizontal bar along its length. The vertical bars are installed on the main beam. The horizontal bar includes multiple sub-bars. A connecting sleeve is rotatably sleeved between two adjacent sub-bars. The connecting sleeve has a through groove for the guardrail to pass through. A gap is left between two adjacent sub-bars for the guardrail to pass through. The two ends of the sub-bar have arc surfaces. When two sub-bars are sleeved in a connecting sleeve, the guardrail is inserted into the connecting sleeve, and the arc surface of the sub-bar fits against the guardrail.

[0007] The reinforcement device includes a first reinforcement rod, a second reinforcement rod, and a support rod. The support rods are arranged in two rows, located on both sides of the bridge. Multiple support rods in one row are connected to the same connecting rod at their lower ends. The length direction of the connecting rod is the same as the length direction of the bridge. The connecting rod is fixedly installed on the cap beam. The number of the first reinforcement rod and the second reinforcement rod corresponds one-to-one with the number of support rods. The first reinforcement rod is installed on the support rod and is inclined downwards. The upper end of the first reinforcement rod is fixedly connected to the support rod. The second reinforcement rod is installed on the connecting sleeve. When the guard rod is inserted into the connecting sleeve and abuts against the bridge deck of the main beam, the second reinforcement rod is in an inclined downward state, and the lower end of the second reinforcement rod abuts against the lower end of the first reinforcement rod.

[0008] By adopting the above technical solution, multiple sub-rods are connected by a connecting sleeve to form a crossbar. When the protective rod is inserted into the connecting sleeve, the connecting sleeve can no longer rotate. Therefore, after the crossbar is formed, when the connecting sleeve is rotated, the second reinforcing rod rotates along with the connecting sleeve. When the second reinforcing rod abuts against the lower end of the first reinforcing rod, the second reinforcing rod is tilted downward. Then, the protective rod is inserted into the connecting sleeve, so that the connecting sleeve can no longer rotate. The first reinforcing rod and the second reinforcing rod form a stable abutting relationship. There is an angle between the first reinforcing rod and the second reinforcing rod, so that the protective rod and the crossbar can play a protective role under normal conditions.

[0009] If a vehicle hits the guardrail, the first and second reinforcing bars can withstand a certain impact force. The force of the vehicle hitting the guardrail is mainly transferred to the cap beam. When replacing the damaged guardrail, only the guardrail and the corresponding sub-bar need to be replaced. The remaining sub-bars and guardrail can still play a protective role. Since the guardrail is only in contact with the main beam of the bridge, the main beam of the bridge is not further damaged. Therefore, the damage to the main beam of the bridge can be reduced when the guardrail is damaged.

[0010] Optionally, a first support rod and a second support rod are installed on the support rod. The first support rod and the second support rod are inclined downwards, and the lower ends of the first support rod and the second support rod respectively abut against the lower ends of the two second reinforcing rods.

[0011] By adopting the above technical solution, the first support rod and the second support rod respectively abut against the two second reinforcement rods. Therefore, one first support rod and one second support rod will abut against one second reinforcement rod at the same time. The impact force on the second reinforcement rod can also be transmitted to other support rods, so that the impact on the protective rod can be transmitted to the support rods more comprehensively.

[0012] Optionally, a limiting plate is connected between the first and second reinforcing rods that abut against each other. The limiting plate is close to the upper end of the first and second reinforcing rods, and a sliding groove is opened on the opposite side of the first and second reinforcing rods for the limiting plate to slide into.

[0013] By adopting the above technical solution, when the limiting plate slides between the first reinforcing rod and the second reinforcing rod, a triangular structure can be formed between the first reinforcing rod, the second reinforcing rod and the limiting plate, so that the first reinforcing rod and the second reinforcing rod can better withstand the impact force transmitted by the protective rod. Potted plants can also be placed on the limiting plate, so that the steel structure bridge can achieve a greening effect.

[0014] Optionally, limit rods are rotatably installed on opposite sides of the limit plate. When the limit plate is installed between the first reinforcing rod and the second reinforcing rod, the first reinforcing rod and the second reinforcing rod are located between the two limit rods.

[0015] By adopting the above technical solution, when the first reinforcing rod and the second reinforcing rod are located between the two limiting rods, the limiting rods can restrict the movement of the limiting plate in the slide groove, so that the limiting plate is stably installed between the first reinforcing rod and the second reinforcing rod.

[0016] Optionally, a positioning rod is provided on the guard rod. When the guard rod abuts against the main beam of the bridge, the positioning rod forms an abutment relationship with the lower surface of the connecting sleeve.

[0017] By adopting the above technical solution, the positioning rod can prevent the protective rod from detaching from the crossbar upwards.

[0018] Optionally, a limit block is connected to the upper end of the guard rod.

[0019] By adopting the above technical solution, when the limiting block abuts against the guard rod, the guard rod no longer passes through the connecting sleeve, so that the guard rod is stably abutted against the main beam of the bridge along with the rotation of the connecting sleeve.

[0020] Optionally, the connecting sleeve is annular, and the limiting block has an arc surface that fits with the connecting sleeve.

[0021] By adopting the above technical solution, the limiting block fits onto the connecting sleeve through its arc surface, which can restrict the rotation of the protective rod and enable the protective rod to play a stable protective role.

[0022] Optionally, the lower end of the first reinforcing rod is provided with a vertical first abutment plate, and the lower end of the second reinforcing rod is provided with a vertical second abutment plate, with the first abutment plate and the second abutment plate fitting together.

[0023] By adopting the above technical solution, the first reinforcing rod and the second reinforcing rod can be stably attached together through the first abutting surface and the second abutting surface.

[0024] In summary, this application includes at least one of the following beneficial effects:

[0025] 1. The first and second reinforcing bars can withstand the impact force from the vehicle and transfer the impact force to the cap beam. When the vehicle hits the guard bar, the main beam of the bridge does not suffer strong impact and damage.

[0026] 2. When replacing the guardrail, since the guardrail and the main bridge beam are only in contact, the main bridge beam will not be damaged when the guardrail is replaced. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0028] Figure 2 This is a cross-sectional view illustrating the protective rod in an embodiment of this application;

[0029] Figure 3 This is a cross-sectional view illustrating the sub-rod in an embodiment of this application;

[0030] Figure 4 yes Figure 1 Enlarged diagram of point A.

[0031] Explanation of reference numerals in the attached drawings: 1. Cap beam; 2. Main beam of the bridge; 3. Guard rod; 31. Positioning rod; 32. Limiting block; 4. Crossbar; 41. Sub-rod; 5. Connecting sleeve; 6. First reinforcing rod; 61. First abutment plate; 7. Second reinforcing rod; 71. Second abutment plate; 8. Support rod; 81. First support rod; 82. Second support rod; 9. Connecting rod; 10. Limiting plate; 11. Limiting rod. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0033] This application discloses a reinforcement device for steel structure bridge railings. (Refer to...) Figure 1 A reinforcement device for a steel structure bridge railing is installed on a steel structure bridge, which includes a cap beam 1 and a main beam 2, with the main beam 2 mounted on the cap beam 1. A railing is installed on the main beam 2, comprising guardrails 3 and crossbars 4 connected to the guardrails 3. The crossbars 4 have a circular cross-section. Vertical bars are connected to both ends of the crossbars 4 along their length, and the guardrails 3 are evenly distributed on the crossbars 4.

[0034] Reference Figure 1 and Figure 2 The crossbar 4 includes multiple sub-bars 41, with a connecting sleeve 5 rotatably mounted between adjacent sub-bars 41. The connecting sleeve 5 has a circular structure and can slide on the crossbar 4. The connecting sleeve 5 has a through slot for the protective rod 3 to pass through, and a gap is left between adjacent sub-bars 41 for the protective rod 3 to pass through. When two sub-bars 41 are fitted into the connecting sleeve 5, they form a connection. When the protective rod 3 is inserted into the connecting sleeve 5, the protective rod 3 is located between the two sub-bars 41.

[0035] Reference Figure 3The two ends of the sub-rod 41 have arc surfaces, and the arc surfaces of the sub-rod 41 fit against the protective rod 3. When the protective rod 3 is inserted between the connecting sleeve 5 and the two sub-rods 41, the connecting sleeve 5 can no longer rotate.

[0036] Reference Figure 1 The reinforcement assembly includes two rows of support rods 8, which are located on both sides of the bridge. The arrangement direction of one row of support rods 8 is the same as the length direction of the bridge. The lower ends of multiple support rods 8 in one row are connected to the same connecting rod 9, which is fixedly installed on the cap beam 1.

[0037] Reference Figure 4 The reinforcement assembly also includes a first reinforcing rod 6 and a second reinforcing rod 7. The first reinforcing rod 6 is fixedly installed on the support rod 8 and is inclined downwards. The first reinforcing rod 6 and the support rod 8 correspond one-to-one, and the second reinforcing rod 7 and the first reinforcing rod 6 correspond one-to-one. The second reinforcing rod 7 is fixedly installed on the connecting sleeve 5. When the protective rod 3 is inserted into the connecting sleeve 5 and abuts against the bridge deck of the main beam 2, the first reinforcing rod 6 is in an inclined downward state, and the lower end of the second reinforcing rod 7 abuts against the first reinforcing rod 6. The reinforcement device can provide stable support for the protective rod 3.

[0038] Reference Figure 4 The lower end of the first reinforcing rod 6 is provided with a vertical first abutment plate 61, and the lower end of the second reinforcing rod 7 is provided with a vertical second abutment plate 71. When the first reinforcing rod 6 and the second reinforcing rod 7 abut against each other, the first abutment plate 61 abuts against the second abutment plate 71, and the area of ​​the second abutment plate 71 is larger than the area of ​​the first abutment plate 61. The first reinforcing rod 6 and the second reinforcing rod 7 can form a stable abutment relationship through the first abutment plate 61 and the second abutment plate 71.

[0039] Reference Figure 4 A first support rod 81 and a second support rod 82 are installed on the support rod 8. A first reinforcing rod 6 is located between the first support rod 81 and the second support rod 82, with the first support rod 81 and the second support rod 82 inclined downwards. The first support rod 81, the second support rod 82, and the first reinforcing rod 6 of the same support rod 8 abut against the second abutment plates 71 of different second reinforcing rods 7. The first support rod 81 and the second support rod 82 of adjacent support rods 8 are at different heights, allowing the first support rod 81 and the second support rod 82 of adjacent support rods 8 to be intersected. The first support rod 81 and the second support rod 82 can both disperse the impact force of the second reinforcing rod 7 and provide further protection for the bridge.

[0040] Reference Figure 2A positioning rod 31 is horizontally inserted on the guard rod 3. When the positioning rod 31 abuts against the main beam 2 of the bridge, the positioning rod 31 is installed on the guard rod 3. The positioning rod 31 forms an abutment relationship with the lower surface of the connecting sleeve 5, so that the guard rod 3 is not easily pulled out upward.

[0041] Reference Figure 4 The upper end of the protective rod 3 is connected to a limiting block 32. The limiting block 32 has an arc surface that fits with the connecting sleeve 5. When the arc surface of the limiting block 32 fits with the connecting sleeve 5, the protective rod 3 cannot rotate around itself as the rotation center.

[0042] Reference Figure 4 A limiting plate 10 is connected between the first reinforcing rod 6 and the second reinforcing rod 7, which abut against each other. The limiting plate 10 is located near the upper ends of the first reinforcing rod 6 and the second reinforcing rod 7. The first reinforcing rod 6 and the second reinforcing rod 7 are respectively provided with sliding grooves for the limiting plate 10 to slide into. When the limiting plate 10 is installed between the first reinforcing rod 6 and the second reinforcing rod 7, and before the protective rod 3 is inserted into the connecting sleeve 5, the connecting sleeve 5 can no longer rotate, so that the limiting plate 10 can pre-position the second reinforcing rod 7, and also facilitate the direct insertion of the protective rod 3 into the connecting sleeve 5.

[0043] Reference Figure 4 The limiting plate 10 is installed horizontally between the first reinforcing rod 6 and the second reinforcing rod 7. The first reinforcing rod 6, the second reinforcing rod 7, and the limiting plate 10 form a stable triangular structure, which can better withstand the impact force on the protective rod 3. Potted plants can also be placed on the horizontal limiting plate 10 to enhance the greening effect of the steel structure bridge.

[0044] Reference Figure 4 The limiting rods 11 are rotatably installed on opposite sides. When the limiting plate 10 is installed between the first reinforcing rod 6 and the second reinforcing rod 7, the limiting rods 11 abut against the opposite side walls of the second abutting plate 71 respectively. The first reinforcing rod 6 and the second reinforcing rod 7 are located between the two limiting rods 11, so that the position of the limiting plate 10 is limited. The limiting plate 10 can be stably installed between the first reinforcing rod 6 and the second reinforcing rod 7.

[0045] The implementation principle of the reinforcement device for steel structure bridge railings in this application embodiment is as follows:

[0046] When the guard rod 3 is inserted into the crossbar 4, the lower end of the guard rod 3 is in contact with the main beam 2 of the bridge. The first reinforcing rod 6 and the second reinforcing rod 7 provide stable support for the guard rod 3, enabling the guard rod 3 to remain vertical and protect the bridge. If the guard rod 3 is impacted, it tends to rotate. The support rod 8 bears the impact force through the first reinforcing rod 6, the second reinforcing rod 7, the first support rod 81, and the second support rod 82. The impact force received by one guard rod 3 can be transmitted to the three support rods 8, and the three support rods 8 are fixedly connected to the cap beam 1. Therefore, when the guard rod 3 is impacted, the probability of the main beam 2 being damaged is greatly reduced. When replacing the guard rod 3, the main beam 2 does not need to be cut or welded.

[0047] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A reinforcement device for a steel structure bridge railing, installed on a steel structure bridge, the steel structure bridge including a cap beam (1) and a main beam (2), a railing installed on the main beam (2), the railing including a guardrail (3) and a horizontal bar (4) connected to the guardrail (3), with vertical bars connected to both ends of the horizontal bar (4) along its length, the vertical bars being installed on the main beam (2), characterized in that: The crossbar (4) comprises a plurality of sub-bars (41), a connecting sleeve (5) is rotatably sleeved between two adjacent sub-bars (41), the connecting sleeve (5) is provided with a through slot for the protective rod (3) to pass through, a gap is left between the two adjacent sub-bars (41) for the protective rod (3) to pass through, and the two ends of the sub-bar (41) are provided with arc surfaces, when the two sub-bars (41) are sleeved in the connecting sleeve (5) and the protective rod (3) is inserted into the connecting sleeve (5), the arc surfaces of the sub-bars (41) are attached to the protective rod (3); The reinforcing device comprises first reinforcing rods (6), second reinforcing rods (7) and support rods (8), the support rods (8) are provided in two rows, the two rows of support rods (8) are respectively arranged on the two sides of the bridge, a plurality of support rods (8) in one row of support rods (8) are connected with the same connecting rod (9) at the lower ends, the length direction of the connecting rod (9) is the same as the length direction of the bridge, the connecting rod (9) is fixedly installed on the bent cap (1), the first reinforcing rods (6) and the second reinforcing rods (7) correspond to the support rods (8) one by one, the first reinforcing rods (6) are installed on the support rods (8), and the first reinforcing rods (6) are arranged in an inclined downward manner, the upper ends of the first reinforcing rods (6) are fixedly connected with the support rods (8), and the second reinforcing rods (7) are installed on the connecting sleeves (5), when the protective rod (3) is inserted into the connecting sleeve (5) and abuts against the bridge deck of the bridge main beam (2), the second reinforcing rods (7) are in an inclined downward state, and the lower ends of the second reinforcing rods (7) abut against the lower ends of the first reinforcing rods (6).

2. The reinforcing device for a steel structure bridge guardrail according to claim 1, characterized in that: The first supporting rods (81) and the second supporting rods (82) are installed on the support rods (8), the first supporting rods (81) and the second supporting rods (82) are in an inclined downward state, the first reinforcing rods (6) are located between the first supporting rods (81) and the second supporting rods (82), and the first supporting rods (81), the second supporting rods (82) and the first reinforcing rods (6) of the same support rod (8) abut against different second reinforcing rods (7) respectively.

3. The reinforcing device for a steel structure bridge guardrail according to claim 1, characterized in that: The first reinforcing rods (6) and the second reinforcing rods (7) abut against each other and are connected with a limiting plate (10) therebetween, the limiting plate (10) is close to the upper ends of the first reinforcing rods (6) and the second reinforcing rods (7), and the opposite sides of the first reinforcing rods (6) and the second reinforcing rods (7) are respectively provided with sliding grooves for the limiting plate (10) to slide into.

4. The reinforcing device for a steel structure bridge guardrail according to claim 3, characterized in that: The opposite sides of the limiting plate (10) are rotatably installed with limiting rods (11), when the limiting plate (10) is installed between the first reinforcing rods (6) and the second reinforcing rods (7), the first reinforcing rods (6) and the second reinforcing rods (7) are located between the two limiting rods (11).

5. The reinforcing device for a steel structure bridge guardrail according to claim 1, characterized in that: A positioning rod (31) is arranged on the protective rod (3), when the protective rod (3) abuts against the bridge main beam (2), the positioning rod (31) forms an abutting relationship with the lower surface of the connecting sleeve (5).

6. A reinforcing device for a steel bridge guardrail according to claim 5, characterized in that: The upper end of the protective rod (3) is connected with a limiting block (32).

7. A reinforcing device for a steel bridge guardrail according to claim 6, characterized in that: The connecting sleeve (5) is in a circular ring shape, and the limiting block (32) is provided with an arc surface attached to the connecting sleeve (5).

8. The reinforcing device for a steel structure bridge guardrail according to claim 1, characterized in that: The lower end of the first reinforcing rod (6) is provided with a vertical first abutting plate (61), and the lower end of the second reinforcing rod (7) is provided with a vertical second abutting plate (71), and the first abutting plate (61) and the second abutting plate (71) are mutually abutted.

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