Deck type arch bridge steel arch support

Abstract

The deck type arch bridge steel arch support comprises a bearing disc, an adjusting disc is arranged at the upper end of the bearing disc, tooth blocks are installed on the outer side wall of the adjusting disc in an array mode, a base is fixed to the upper end of the adjusting disc, a bearing cavity is formed in one side wall of the base, and multiple sets of reinforcing rods are installed in the bearing cavity in an array mode. The device has the beneficial effects that by arranging a bearing disc, an adjusting disc and a screw block, the bearing disc is fixed to a concrete pile body according to the direction of a bridge, and in the subsequent construction process, when it is found that deviation exists between the direction of the bridge and the direction of a base, an external driving motor can drive a gear to rotate; the gear drives the adjusting disc to rotate through the reserved gear block, then the direction of the base is adjusted in place, then the adjusting disc and the bearing disc are subjected to full welding treatment to form a whole, and in this way, under the condition that the overall strength of the device is guaranteed, the base can have certain adjusting performance, and the using effect is good.

Description

Technical Field

[0001] The invention relates to the technical field of arch bridge supports, and in particular to a steel arch frame support for an upper-bearing arch bridge. Background Art

[0002] A deck bridge is a bridge whose deck is set on the main load-bearing structure of the span (trusses, arch ribs, main beams, etc.). The deck can be arranged at different positions of the span structure according to the allowable building height and actual needs. Its advantages are: the deck structure is simple and the construction is convenient. The width of the main load-bearing structure of the span can be made smaller (or densely packed), thus saving pier masonry; in addition, the view on the bridge is wide. The disadvantage is that the building height from the deck to the bottom of the beam is relatively large.

[0003] The existing steel arch frame supports of top-supported arch bridges are formed by casting to form the base, which means that once cast, the position cannot be adjusted. When there is a deviation between the direction of the bridge and the position of the support, the base will be abandoned or re-cast on the base, which has great limitations and leads to poor use effect. In addition, the existing steel arch frame supports of top-supported arch bridges are easily affected by the vibration of the bridge during use, which makes them easy to crack, which not only leads to poor seismic performance of the base, but also leads to a short service life. Summary of the invention

[0004] The purpose of the present invention is to provide a steel arch frame support for an upper-bearing arch bridge in order to solve the above-mentioned problem.

[0005] The present invention achieves the above-mentioned purpose through the following technical solutions: A steel arch frame support of an upper-supported arch bridge comprises a bearing plate, an adjusting plate is arranged on the upper end of the bearing plate, a tooth block is installed in an array on the outer side wall of the adjusting plate, a base is fixed to the upper end of the adjusting plate, a bearing cavity is opened on one side wall of the base, a plurality of groups of reinforcement rods are installed in an array in the bearing cavity, a connecting plate is arranged at one end of the reinforcement rod, a plurality of groups of damping rods are installed in an array on the connecting plate, a spring is sleeved on the outer side of the damping rod, a mounting plate is fixed on the movable end of the damping rod, a telescopic folding protective cover is arranged between the mounting plate and the connecting plate, and a plurality of groups of screws are fixed in an array on one side wall of the mounting plate.

[0006] Furthermore, the adjusting disk is rotatably mounted on the carrying disk, and the tooth block is welded to the outer side wall of the adjusting disk.

[0007] By adopting the above technical scheme, the bearing plate is first fixed on the concrete pile body according to the orientation of the bridge. In the subsequent construction process, when it is found that there is a deviation between the orientation of the bridge and the orientation of the base, the external driving motor can drive the gear to rotate, and the gear drives the adjusting plate to rotate through the reserved tooth block, thereby adjusting the orientation of the base. After the adjustment is in place, the adjusting plate and the bearing plate are fully welded to form a whole. This method can make the base have a certain adjustment performance while ensuring the overall strength of the device, and the use effect is good.

[0008] Furthermore, the base is welded on the adjusting disk, the bearing cavity is formed on the base, and the bearing cavity is an inclined surface structure.

[0009] By adopting the above technical solution, the base and the bearing cavity provide an installation position for the reinforcement rod.

[0010] Furthermore, the reinforcement rod is embedded in the bearing cavity, and the connecting plate and the reinforcement rod are fully welded.

[0011] By adopting the above technical solution, the reinforcement rod supports the connecting plate.

[0012] Furthermore, the fixing portion of the damping rod is fixed to the connecting plate by bolts, the spring is welded to the outer wall of the damping rod, the spring and the damping rod are both made of high-strength material, and the telescopic folding protective cover is fixed between the mounting plate and the connecting plate by screws.

[0013] By adopting the above technical solution, during the use of the base, the damping rod and the spring are combined to reduce the degree of vibration of the base from the bridge, thereby protecting the base and improving its seismic resistance. The telescopic and folding protective cover can protect the damping rod and the spring to prevent them from being corroded by water vapor and increase their service life.

[0014] Furthermore, the mounting plate is welded to the movable end of the damping rod, and the screw rod is welded to the mounting plate.

[0015] By adopting the above technical solution, the steel arch frame can be connected to the base by passing the screw rod through the reserved hole of the steel arch frame and fixing it with a nut.

[0016] Furthermore, angle irons are welded at diagonal positions inside the base, and series connection plates are welded between the angle irons.

[0017] By adopting the above technical solution, the series connection plate can connect the reinforcement rods into one, thereby improving the tensile strength thereof.

[0018] Furthermore, a through cavity is provided in an array on the serial connection plate, the fixing rod passes through the through cavity, and the reinforcing rod and the serial connection plate are fully welded.

[0019] By adopting the above technical solution, the through cavity provides a penetrating space for the reinforcement rod.

[0020] Furthermore, a thread groove is formed on one end of the reinforcement rod, and a locking nut is screwed onto the thread groove.

[0021] By adopting the above technical solution, the thread groove combined with the locking nut can further reinforce the connection between the reinforcement rod and the series connection plate.

[0022] Furthermore, steel bars are welded in an array at the bottom of the bearing plate, connecting rings are welded between the steel bars, and connecting blocks are distributed circumferentially between the connecting rings.

[0023] By adopting the above technical solution, the steel bars, the connecting rings and the connecting blocks can form a cage frame and be placed in the concrete foundation piles, thereby ensuring its stability.

[0024] The specific working principle is: first, the bearing plate is fixed on the concrete pile body according to the orientation of the bridge, and the steel bars, the connecting rings and the connecting plates can form a cage frame and be placed in the concrete pile foundation to ensure its stability. In the subsequent construction process, when it is found that the orientation of the bridge deviates from the orientation of the base, the external driving motor can drive the gear to rotate, and the gear drives the adjusting plate to rotate through the reserved tooth block, thereby adjusting the orientation of the base. After the adjustment is in place, the adjusting plate and the bearing plate are fully welded to form a whole. This method can ensure that the base has a certain adjustment performance while ensuring the overall strength of the device. When adjusted to After being in place, the screw rod is passed through the reserved hole of the steel arch frame and fixed with a nut to connect the steel arch frame to the base. Then, during the use of the base, the serial plate can connect the reinforcement rod as a whole, thereby improving its tensile strength. The threaded groove combined with the locking nut can further reinforce the connection between the reinforcement rod and the serial plate. The damping rod combined with the spring can reduce the degree of vibration of the base from the bridge, thereby protecting the base and improving its seismic resistance. The telescopic folding protective cover can protect the damping rod and the spring to prevent them from being eroded by water vapor and increase their service life.

[0025] The beneficial effects of the present invention are: 1. By setting the bearing plate, the adjusting plate and the screw block, the bearing plate will be fixed on the concrete pile body according to the orientation of the bridge. In the subsequent construction process, when it is found that there is a deviation between the orientation of the bridge and the orientation of the base, the external driving motor can drive the gear to rotate, and the gear drives the adjusting plate to rotate through the reserved gear block, thereby adjusting the orientation of the base. After the adjustment is in place, the adjusting plate and the bearing plate are fully welded to form a whole. This method can make the base have a certain adjustment performance while ensuring the overall strength of the device, and the use effect is good; 2. By setting up a damping rod, a spring and a telescopic folding protective cover, during the use of the base, the damping rod and the spring combined can reduce the degree of vibration of the base from the bridge, thereby protecting the base and improving its seismic performance. The telescopic folding protective cover can protect the damping rod and the spring to prevent them from being eroded by water vapor and increase their service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a front view of a steel arch support of a deck-type arch bridge according to the present invention; Figure 2 It is a bottom view of a steel arch support of a deck-type arch bridge according to the present invention; Figure 3 It is a structural schematic diagram of the connection relationship between the mounting plate and the connecting plate in a steel arch frame support of a deck-type arch bridge according to the present invention; Figure 4 It is a main cross-sectional view of a base in a steel arch frame support of a deck-type arch bridge according to the present invention; Figure 5 The invention discloses a steel arch support for a top-bearing arch bridge. Figure 4 Enlarged view of point A in the middle.

[0027] The following are the descriptions of the reference numerals: 1. Load-bearing plate; 2. Steel bar; 3. Connecting ring; 4. Connecting block; 5. Adjusting plate; 6. Tooth block; 7. Base; 8. Load-bearing cavity; 9. Reinforcement rod; 10. Connecting plate; 11. Damping rod; 12. Spring; 13. Telescopic and folding protective cover; 14. Mounting plate; 15. Screw rod; 16. Serial plate; 17. Angle iron; 18. Through cavity; 19. Threaded groove; 20. Locking nut. DETAILED DESCRIPTION

[0028] The present invention will be further described below in conjunction with the accompanying drawings: like Figure 1-Figure 5As shown, a steel arch frame support of an upper-supported arch bridge comprises a bearing plate 1, an adjusting plate 5 is arranged on the upper end of the bearing plate 1, and a tooth block 6 is installed in an array on the outer wall of the adjusting plate 5. The base 7 can be driven to rotate by the adjusting plate 5 under the action of an external driving force to adjust its orientation. A base 7 is fixed on the upper end of the adjusting plate 5, and a bearing cavity 8 is opened on one side wall of the base 7. A plurality of groups of reinforcing rods 9 are installed in an array in the bearing cavity 8. A connecting plate 10 is arranged at one end of the reinforcing rod 9, and a plurality of groups of damping rods 11 are installed in an array on the connecting plate 10. A spring 12 is sleeved on the outer side of the damping rod 11 to absorb vibration parts from the bridge and reduce the degree of vibration of the base 7. A mounting plate 14 is fixed on the movable end of the damping rod 11, and a telescopic folding protective cover 13 is arranged between the mounting plate 14 and the connecting plate 10 to protect the damping rod 11 and the spring 12. A plurality of groups of screws 15 are fixed in an array on one side wall of the mounting plate 14 to facilitate the installation of the steel arch frame.

[0029] In this embodiment, the adjusting disk 5 is rotatably installed on the supporting disk 1, and the tooth block 6 is welded to the outer wall of the adjusting disk 5. First, the supporting disk 1 is fixed on the concrete pile body according to the orientation of the bridge. In the subsequent construction process, when it is found that there is a deviation between the orientation of the bridge and the orientation of the base 7, the external driving motor can drive the gear to rotate, and the gear drives the adjusting disk 5 to rotate through the reserved tooth block 6, and then adjusts the orientation of the base 7. After the adjustment is in place, the adjusting disk 5 and the supporting disk 1 are fully welded to form a whole. This method can make the base 7 have a certain adjustment performance while ensuring the overall strength of the device, and the use effect is good.

[0030] In this embodiment, the base 7 is welded on the adjusting disk 5 , and the bearing cavity 8 is formed on the base 7 . The bearing cavity 8 is an inclined structure. The base 7 and the bearing cavity 8 provide installation positions for the reinforcing rod 9 .

[0031] In this embodiment, the reinforcement rod 9 is embedded in the bearing cavity 8 , the connecting plate 10 and the reinforcement rod 9 are fully welded, and the reinforcement rod 9 supports the connecting plate 10 .

[0032] In this embodiment, the fixing part of the damping rod 11 is fixed to the connecting plate 10 by bolts, and the spring 12 is welded to the outer wall of the damping rod 11. The spring 12 and the damping rod 11 are both made of high-strength material. The telescopic folding protective cover 13 is fixed between the mounting plate 14 and the connecting plate 10 by screws. During the use of the base 7, the damping rod 11 and the spring 12 are combined to reduce the vibration degree of the base 7 from the bridge, thereby protecting the base 7 and improving its anti-seismic performance. The telescopic folding protective cover 13 can protect the damping rod 11 and the spring 12 to prevent them from being eroded by water vapor and increase their service life.

[0033] In this embodiment, the mounting plate 14 is welded to the movable end of the damping rod 11, and the screw 15 is welded to the mounting plate 14. The screw 15 is passed through the reserved hole of the steel arch frame and fixed by a nut, so that the steel arch frame can be connected to the base 7.

[0034] In this embodiment, angle irons 17 are welded at the diagonals of the base 7, and connecting plates 16 are welded between the angle irons 17. The connecting plates 16 can connect the reinforcing rods 9 as a whole, thereby improving the tensile strength thereof.

[0035] In this embodiment, a through cavity 18 is arranged in an array on the serial connection plate 16 , and the fixing rod passes through the through cavity 18 . The reinforcement rod 9 and the serial connection plate 16 are fully welded, and the through cavity 18 provides a space for the reinforcement rod 9 to pass through.

[0036] In this embodiment, a thread groove 19 is formed at one end of the reinforcement rod 9, and a locking nut 20 is screwed onto the thread groove 19. The thread groove 19 and the locking nut 20 can be combined to further reinforce the connection between the reinforcement rod 9 and the serial connection plate 16.

[0037] In this embodiment, steel bars 2 are welded in an array at the bottom end of the carrying plate 1, connecting rings 3 are welded between the steel bars 2, and connecting blocks 4 are distributed circumferentially between the connecting rings 3. The steel bars 2, connecting rings 3 and connecting blocks 4 can form a cage frame placed in the concrete foundation piles, thereby ensuring its stability.

[0038] The specific working principle is: first, the bearing plate 1 is fixed on the concrete pile body according to the orientation of the bridge, and the steel bars 2, the connecting rings 3 and the connecting blocks 4 can form a cage frame and be placed in the concrete pile foundation to ensure its stability. In the subsequent construction process, when it is found that there is a deviation between the orientation of the bridge and the orientation of the base 7, the external driving motor can drive the gear to rotate, and the gear drives the adjusting plate 5 to rotate through the reserved tooth block 6, thereby adjusting the orientation of the base 7. After the adjustment is in place, the adjusting plate 5 and the bearing plate 1 are fully welded to form a whole. This method can make the base 7 have a certain adjustment performance while ensuring the overall strength of the device. After the adjustment is in place, By passing the screw 15 through the reserved hole of the steel arch frame and fixing it with a nut, the steel arch frame can be connected to the base 7. Then, during the use of the base 7, the serial plate 16 can connect the reinforcement rod 9 as a whole, thereby improving its tensile strength. The threaded groove 19 combined with the locking nut 20 can further reinforce the connection between the reinforcement rod 9 and the serial plate 16. The damping rod 11 combined with the spring 12 can reduce the degree of vibration of the base 7 from the bridge, thereby protecting the base 7 and improving its seismic resistance. The telescopic folding protective cover 13 can protect the damping rod 11 and the spring 12 to prevent them from being eroded by water vapor and increase their service life.

[0039] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A steel arch support for a deck arch bridge, characterized in that: The invention comprises a bearing plate (1), wherein an adjusting plate (5) is arranged at the upper end of the bearing plate (1), a tooth block (6) is arranged in an array on the outer side wall of the adjusting plate (5), a base (7) is fixed at the upper end of the adjusting plate (5), a bearing cavity (8) is opened on one side wall of the base (7), a plurality of groups of reinforcing rods (9) are arranged in an array in the bearing cavity (8), a connecting plate (10) is arranged at one end of the reinforcing rod (9), a plurality of groups of damping rods (11) are arranged in an array on the connecting plate (10), a spring (12) is sleeved on the outer side of the damping rod (11), a mounting plate (14) is fixed on the movable end of the damping rod (11), a telescopic folding protective cover (13) is arranged between the mounting plate (14) and the connecting plate (10), and a plurality of groups of screw rods (15) are arranged in an array on one side wall of the mounting plate (14).

2. The steel arch support of a deck arch bridge according to claim 1, characterized in that: The adjusting disk (5) is rotatably mounted on the supporting disk (1), and the tooth block (6) is welded to the outer side wall of the adjusting disk (5).

3. The steel arch support of a deck arch bridge according to claim 2, characterized in that: The base (7) is welded on the adjusting disk (5), the bearing cavity (8) is formed on the base (7), and the bearing cavity (8) is an inclined surface structure.

4. The steel arch support of a deck arch bridge according to claim 1, characterized in that: The reinforcing rod (9) is embedded in the bearing cavity (8), and the connecting plate (10) and the reinforcing rod (9) are fully welded.

5. The steel arch support of a deck arch bridge according to claim 4, characterized in that: The fixing portion of the damping rod (11) is fixed to the connecting plate (10) by means of bolts, the spring (12) is welded to the outer wall of the damping rod (11), the spring (12) and the damping rod (11) are both made of high-strength material, and the telescopic folding protective cover (13) is fixed between the mounting plate (14) and the connecting plate (10) by means of screws.

6. The steel arch support of a deck arch bridge according to claim 5, characterized in that: The mounting plate (14) is welded to the movable end of the damping rod (11), and the screw rod (15) is welded to the mounting plate (14).

7. The steel arch support of a deck arch bridge according to claim 3, characterized in that: Angle irons (17) are welded at opposite corners inside the base (7), and series connection plates (16) are welded between the angle irons (17).

8. The steel arch support of a deck arch bridge according to claim 7, characterized in that: The serial connection plate (16) is provided with a through cavity (18) in an array, the fixing rod passes through the through cavity (18), and the reinforcing rod (9) and the serial connection plate (16) are fully welded.

9. The steel arch support of a deck arch bridge according to claim 8, characterized in that: A thread groove (19) is formed at one end of the reinforcing rod (9), and a locking nut (20) is screwed onto the thread groove (19).

10. The steel arch support of a deck arch bridge according to claim 1, characterized in that: The bottom end of the bearing plate (1) is welded with steel bars (2) in an array, connection rings (3) are welded between the steel bars (2), and connection blocks (4) are distributed in a circumferential manner between the connection rings (3).

Images