Self-adaptive joint structure for old bridge splicing

Abstract

A self-adaptive joint structure for old bridge splicing relates to the technical field of constructional engineering, and comprises a new bridge, an old bridge and a connecting member arranged between the new bridge and the old bridge, and further comprises a pouring member, the connecting member comprises an assembling plate and a connecting piece, and the pouring member comprises a bottom pouring plate and a side pouring plate. Wherein the new bridge and the old bridge are both fixedly provided with assembling plates, and the assembling plates are provided with a plurality of connecting sleeves; the connecting piece comprises an upper connecting plate and a lower connecting plate, and the upper connecting plate and the lower connecting plate are provided with a plurality of connecting insertion plates; by means of the telescopic and movable connecting pieces on the splicing pieces, the connecting width can be adjusted to adapt to the width of a gap between a new bridge and an old bridge when the new bridge and the old bridge are spliced, after connection is completed, pouring components are additionally installed for joint pouring, and the new bridge and the old bridge are stably connected together. And the construction efficiency of splicing the new bridge and the old bridge is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering, in particular to an old bridge splicing adaptive joint structure. Background Art

[0002] As the passenger and cargo throughput of airports continues to increase, the requirements for airport infrastructure are also increasing. Many old bridges on the approach roads of airports are difficult to meet the growing traffic demand due to their early construction years and low design standards. The narrowness and aging of the old bridges restrict traffic flow. Splicing technology can effectively widen roads and increase the number of lanes, thereby reducing traffic congestion and improving the efficiency and speed of vehicle traffic.

[0003] Before splicing the new bridge with the old one, it is necessary to conduct a detailed inspection of the structural condition of the old bridge to evaluate its load-bearing capacity, remaining service life, etc. Then, based on the condition of the old bridge, design the connection part between the new bridge structure and the old bridge to ensure the safety and reliability of the spliced ​​structure. When the deck of the new bridge is built to the old bridge, the new and old bridges are connected with the joints. Due to certain errors in construction, the width of the joint between the new and old bridges cannot be accurately predicted. After the construction of the new bridge deck is completed, the joint width needs to be measured and then the connecting components need to be customized. The process is relatively cumbersome, which affects the construction efficiency of splicing the new and old bridges. Utility Model Content

[0004] The utility model provides an adaptive joint structure for splicing old bridges, which has the advantages of stable connection and high joint connection efficiency, and solves the problem that the existing joint process is cumbersome and requires customized connection components.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an adaptive joint structure for splicing an old bridge, comprising a new bridge, an old bridge, and a connecting member disposed between the new bridge and the old bridge, and further comprising a casting member, wherein the connecting member comprises a symmetrically arranged assembly plate and a connector, and the casting member comprises a bottom casting plate and a side casting plate, wherein:

[0006] The connecting surfaces of the new bridge and the old bridge are both fixed with assembly plates, and a plurality of connecting sleeves are installed on the sides of the assembly plates close to each other;

[0007] The connecting member includes an upper connecting plate and a lower connecting plate, and a plurality of connecting plugs are installed on the side of the upper connecting plate and the lower connecting plate close to the assembly plate, and the connecting plugs are movably connected and fit with the connecting sleeve;

[0008] The side casting plate is fixedly connected to the upper connecting plate and can be detachably mounted on the side end of the assembly plate;

[0009] The bottom casting plate is detachably mounted on the lower end of the lower connecting plate.

[0010] As an optimal technical solution of the present invention, the connecting plate and the connecting sleeve each have multiple corresponding first assembly holes and first mounting holes, and first mounting bolts are provided in the first assembly holes and the first mounting holes. The connecting plate and the connecting sleeve are connected by the first mounting bolts.

[0011] As a preferred technical solution of the present invention, the connecting sleeve on the upper connecting plate and the first assembly hole and the first mounting hole on the corresponding connecting plug plate are both located on the upper side, and the connecting sleeve on the lower connecting plate and the first assembly hole and the first mounting hole on the corresponding connecting plug plate are both located on the lower side.

[0012] As an optimal technical solution of the present invention, the side end of the assembly plate is fixed with a plurality of fixing ears with holes, the side casting plate is provided with a plurality of second mounting holes, the second mounting holes and the fixing ears are provided with second mounting bolts, and the side casting plate and the assembly plate are connected by the second mounting bolts.

[0013] As an optimal technical solution of the present invention, a base plate is installed at the bottom of the bottom casting plate, the base plate is provided with multiple second assembly holes, the bottom casting plate is provided with multiple third mounting holes, third mounting bolts are provided in the second assembly holes and the third mounting holes, and the bottom casting plate and the base plate are connected by the third mounting bolts.

[0014] As a preferred technical solution of the present invention, a plurality of steel bar cylinders are installed through the assembly plate, and the steel bar cylinders extend into the new bridge and the old bridge on the side close to the new bridge and the old bridge.

[0015] As a preferred technical solution of the present invention, steel bar grooves are provided at positions of the upper connecting plate and the lower connecting plate corresponding to the steel bar cylinder.

[0016] Compared with the existing technology, the present invention provides an adaptive joint structure for splicing old bridges, which has the following beneficial effects:

[0017] The utility model uses the retractable and movable connecting parts on the splicing parts to adjust the connection width to adapt to the width of the gap between the new and old bridges when splicing the new and old bridges. After the connection is completed, the casting components can be added to cast the joints, so that the new and old bridges are stably connected together. There is no need to customize specific connecting components, which improves the construction efficiency of splicing the new and old bridges. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the installation position of the utility model;

[0019] Figure 2 This is a schematic diagram of the overall structure of the connecting component of the utility model;

[0020] Figure 3This is a schematic diagram of the connection between the assembly plate and the connector of the utility model;

[0021] Figure 4 This is a schematic diagram of the disassembly of the casting component of the utility model;

[0022] Figure 5 For this utility model Figure 4 Enlarged view of area A in the middle;

[0023] Figure 6 This is a schematic diagram of the disassembly of the assembly plate and the connecting parts of the utility model;

[0024] Figure 7 For this utility model Figure 6 Enlarged view of area B in the middle.

[0025] In the figure: 1. New bridge; 2. Old bridge; 3. Connecting member; 31. Assembly plate; 311. Fixing ear; 312. Connecting sleeve; 3121. First mounting bolt; 3122. First mounting hole; 32. Connecting piece; 321. Upper connecting plate; 3211. Connecting plug plate; 3212. First assembly hole; 322. Lower connecting plate; 3221. Bottom plate; 3222. Second assembly hole; 323. Steel bar groove; 33. Steel bar cylinder; 4. Casting member; 41. Side casting plate; 411. Second mounting hole; 42. Bottom casting plate; 421. Third mounting hole; 43. Second mounting bolt; 44. Third mounting bolt. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1

[0027] Please see the attached Figure 1-Figure 7 The present invention discloses an adaptive joint structure for splicing an old bridge, comprising a new bridge 1, an old bridge 2, and a connecting member 3 disposed between the new bridge 1 and the old bridge 2, and further comprising a casting member 4. The connecting member 3 comprises a symmetrically arranged assembly plate 31 and a connector 32, and the casting member 4 comprises a bottom casting plate 42 and a side casting plate 41, wherein:

[0028] The connecting surfaces of the new bridge 1 and the old bridge 2 are both fixed with assembly plates 31, and the sides of the assembly plates 31 close to each other are both installed with multiple connection sleeves 312;

[0029] The connecting member 32 includes an upper connecting plate 321 and a lower connecting plate 322. A plurality of connecting plugs 3211 are installed on the side of the upper connecting plate 321 and the lower connecting plate 322 close to the assembly plate 31. The connecting plugs 3211 are movably connected and fit with the connecting sleeve 312.

[0030] The side casting plate 41 is fixedly connected to the upper connecting plate 321 and can be detachably mounted on the side end of the assembly plate 31;

[0031] The bottom casting plate 42 is detachably mounted on the lower end of the lower connecting plate 322 .

[0032] Please refer to the attached Figure 6 、 Figure 7 The connecting plug plate 3211 and the connecting sleeve 312 each have a plurality of corresponding first assembly holes 3212 and first mounting holes 3122, and first mounting bolts 3121 are provided in the first assembly holes 3212 and the first mounting holes 3122. The connecting plug plate 3211 and the connecting sleeve are connected by the first mounting bolts 3121. The connecting sleeve 312 on the upper connecting plate 321 and the first assembly holes 3212 and the first mounting holes 3122 on the corresponding connecting plug plate 3211 are all located on the upper side, and the connecting sleeve 312 on the lower connecting plate 322 and the first assembly holes 3212 and the first mounting holes 3122 on the corresponding connecting plug plate 3211 are all located on the lower side. Specifically, the position of the connecting member 32 can be adjusted by connecting the plug plate 3211 and the connecting sleeve 312, and it is fixed to the assembly plate 31 by the first mounting bolts 3121 to keep the stability of the upper connecting plate 321.

[0033] Please refer to the attached Figure 5 The side end of the assembly plate 31 is fixed with a plurality of fixing ears 311 with holes, and the side casting plate 41 is provided with a plurality of second mounting holes 411. Second mounting bolts 43 are provided in the second mounting holes 411 and the fixing ears 311. The side casting plate 41 and the assembly plate 31 are connected by the second mounting bolts 43. Specifically, the side casting plate 41 can be fixed by the second mounting bolts 43 and the fixing ears 311.

[0034] Please refer to the attached Figure 5 、 Figure 7 A bottom plate 3221 is installed at the bottom of the bottom casting plate 42, and the bottom plate 3221 is provided with a plurality of second assembly holes 3222. The bottom casting plate 42 is provided with a plurality of third mounting holes 421. Third mounting bolts 44 are provided in the second assembly holes 3222 and the third mounting holes 421. The bottom casting plate 42 is connected to the bottom plate 3221 through the third mounting bolts 44. Specifically, the bottom casting plate 42 can be fixed by the third mounting bolts 44 so that the bottom casting plate 42 can withstand the weight of concrete during pouring.

[0035] In this embodiment, the lengths of the side casting plates 41 and the bottom casting plates 42 are designed to be redundant, and the positions of the side casting plates 41 and the bottom casting plates 42 can be extended to the side ends and bottoms of the new bridge 1 and the old bridge 2. In conjunction with the multiple second assembly holes 3222 and the third mounting holes 421 on the side casting plates 41 and the bottom casting plates 42, the side casting plates 41 and the bottom casting plates 42 can be adjusted in position according to the joint requirements and spliced ​​together, and can still be fixed by the second mounting bolts 43 and the third mounting bolts 44. Example 2

[0036] Based on the above embodiment 1, please refer to the attached Figure 4 、 Figure 5 The assembly plate 31 is penetrated by a plurality of steel tubes 33, and the steel tubes 33 extend into the new bridge 1 and the old bridge 2 on one side close to the new bridge 1 and the old bridge 2. Steel grooves 323 are provided at positions corresponding to the upper connecting plate 321 and the lower connecting plate 322 and the steel tubes 33.

[0037] In this embodiment, bundles of stress steel bars extending into the new bridge 1 and the old bridge 2 are installed between the new bridge 1 and the old bridge 2. The steel bar tube 33 wraps the stress steel bars inside, and the stress steel bars run across the entire connecting member 3 to improve the connection strength between the new bridge 1 and the old bridge 2.

[0038] The working principle and use process of the present invention are as follows: after the assembly plates 31 are fixed on the sides close to each other on the new bridge 1 and the old bridge 2, the connecting plugs 3211 on the two sets of upper connecting plates 321 and the lower connecting plates 322 are respectively inserted into the connecting sleeves 312 on the assembly plates 31 on the new bridge 1 and the old bridge 2, and the positions of the upper connecting plates 321 and the lower connecting plates 322 are adjusted by sliding the connecting plugs 3211 in the connecting sleeves 312 so that the bottom plates 3221 under the two sets of lower connecting plates 322 fit together, and at the same time, the side casting plates 4 on the upper connecting plates 321 are made to fit together. 1 together, and then use the first mounting bolt 3121 to fix the connecting plug plate 3211 on the upper connecting plate 321 to the connecting sleeve 312 on the assembly plate 31, use the second mounting bolt 43 to fix the side casting plate 41 to the fixing ear 311 on the assembly plate 31, and use the third mounting bolt 44 to fix the bottom casting plate 42 to the bottom plate 3221 below the two connecting plates. At this time, the side casting plate 41 and the bottom casting plate 42 are assembled into a casting cavity, and concrete cement is poured into the cavity to complete the joint between the new bridge 1 and the old bridge 2.

Claims

1. An adaptive joint structure for splicing an old bridge, comprising a new bridge (1), an old bridge (2), and a connecting member (3) arranged between the new bridge (1) and the old bridge (2), characterized in that: The invention also includes a casting component (4), wherein the connecting component (3) includes an assembly plate (31) and a connecting member (32) symmetrically arranged, and the casting component (4) includes a bottom casting plate (42) and a side casting plate (41). The connecting surfaces of the new bridge (1) and the old bridge (2) are both fixed with an assembly plate (31), and a plurality of connecting sleeves (312) are installed on the sides of the assembly plates (31) close to each other; the connecting member (32) includes an upper connecting plate (321) and a lower connecting plate (322), and a plurality of connecting plugs (3211) are installed on the sides of the upper connecting plate (321) and the lower connecting plate (322) close to the assembly plate (31), and the connecting plugs (3211) are movably connected and fit with the connecting sleeves (312); the side casting plate (41) is fixedly connected to the upper connecting plate (321) and is detachably installed on the side end of the assembly plate (31); and the bottom casting plate (42) is detachably installed on the lower end of the lower connecting plate (322).

2. The adaptive joint structure for splicing old bridges according to claim 1, characterized in that: The connecting plug plate (3211) and the connecting sleeve (312) each have a plurality of corresponding first assembly holes (3212) and first mounting holes (3122), first mounting bolts (3121) are provided in the first assembly holes (3212) and the first mounting holes (3122), and the connecting plug plate (3211) and the connecting sleeve are connected via the first mounting bolts (3121).

3. The adaptive joint structure for splicing old bridges according to claim 2, characterized in that: The connecting sleeve (312) on the upper connecting plate (321) and the first assembly hole (3212) and the first mounting hole (3122) on the corresponding connecting plug plate (3211) are all located on the upper side, and the connecting sleeve (312) on the lower connecting plate (322) and the first assembly hole (3212) and the first mounting hole (3122) on the corresponding connecting plug plate (3211) are all located on the lower side.

4. The adaptive joint structure for splicing old bridges according to claim 3 is characterized by: A plurality of fixing ears (311) with holes are fixed to the side ends of the assembly plate (31), a plurality of second mounting holes (411) are provided on the side casting plate (41), second mounting bolts (43) are provided in the second mounting holes (411) and the fixing ears (311), and the side casting plate (41) and the assembly plate (31) are connected via the second mounting bolts (43).

5. The adaptive joint structure for splicing old bridges according to claim 4 is characterized by: A bottom plate (3221) is installed at the bottom of the bottom casting plate (42), the bottom plate (3221) is provided with a plurality of second assembly holes (3222), the bottom casting plate (42) is provided with a plurality of third mounting holes (421), third mounting bolts (44) are provided in the second assembly holes (3222) and the third mounting holes (421), and the bottom casting plate (42) and the bottom plate (3221) are connected via the third mounting bolts (44).

6. The adaptive joint structure for splicing old bridges according to claim 4, characterized in that: The assembly plate (31) is penetrated by a plurality of steel bar cylinders (33), and the steel bar cylinders (33) extend into the new bridge (1) and the old bridge (2) on one side thereof.

7. The adaptive joint structure for splicing old bridges according to claim 6, characterized in that: The upper connecting plate (321) and the lower connecting plate (322) are both provided with steel bar grooves (323) at positions corresponding to the steel bar cylinder (33).

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