Beam body connecting device for widening bridge
By using a clamping mechanism and a rigid connection between the clamping plate and the bridge widening construction, the problem of deformation and displacement caused by load during the concrete curing process at the joint between the old and new bridge structures was solved, thus achieving continuous curing of concrete and construction safety.
Patent Information
- Application Number
- CN202423248015.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-12-27
AI Technical Summary
During bridge widening construction, the concrete at the joint between the old and new bridge sections is prone to cracking due to vehicle traffic during the curing process, affecting construction quality and traffic safety.
The old bridge structure is rigidly connected to the new bridge structure by using a clamping mechanism and clamping plates. The design of tie rods, nuts and rubber blocks ensures the continuity of load transfer, and the connection strength is enhanced by the use of implanted bars and pre-embedded bars to prevent concrete leakage.
This effectively reduced deformation and displacement between the old and new bridge structures, improved the quality of concrete curing, reduced crack formation, and ensured traffic safety during construction.
Smart Images
Figure CN223633812U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to bridge construction technical field, concretely is a kind of beam body connecting device for bridge splicing width. BACKGROUND
[0002] With the improvement of people's living standards, the increase of traffic, the traffic volume increases sharply. Many early construction of road engineering cannot meet the demand of rapidly growing traffic, and it is urgently needed to widen and reconstruct; Bridge splicing width reconstruction project is difficult to construct, and has great influence on traffic organization scheme, is the key of the whole road reconstruction project.
[0003] In order to avoid the influence of closed construction on traffic, the current bridge widening construction is carried out under the condition of opening to traffic, only the lane near the construction is closed, but in the actual construction process, the concrete cast at the joint of new and old bridge body needs a certain time to reach the use strength, and in the process of concrete curing, the force generated by the vehicle passing on the old bridge body will cause the old bridge body to have a large displacement and deformation relative to the new bridge body, which is easy to cause the concrete in the joint of the two to crack, therefore, we propose a kind of beam body connecting device for bridge splicing width. CONTENT OF UTILITY MODEL
[0004] The utility model aims at providing a kind of beam body connecting device for bridge splicing width to solve the problems raised in the above background.
[0005] To achieve the above object, the utility model provides the following technical scheme:
[0006] A kind of beam body connecting device for bridge splicing width, including clamping mechanism and four clamping plates across the longitudinal joint between old bridge body and new bridge body, the clamping mechanism includes bottom beam and top beam, the bottom beam and top beam are located at the upper and lower sides of longitudinal joint respectively, and the bottom beam and top beam are detachably connected by a plurality of pull rods, the two ends of the bottom beam and top beam are detachably connected with corresponding clamping plate, the top surface and bottom surface of the old bridge body and new bridge body are attached with corresponding clamping plate, the lower part of longitudinal joint is provided with formwork, the formwork is provided with perforation for pull rod, the top of bottom beam is provided with rubber block at corresponding place of formwork.
[0007] As a further scheme of the utility model: the pull rod is even, and a plurality of pull rods are symmetrically distributed on the two sides of top beam, the two ends of every two corresponding pull rods are commonly sleeved with two pull plates, and the two ends of pull rod are sleeved with first nut after penetrating through corresponding pull plate.
[0008] As a further scheme of the utility model: the two sides of bottom beam and top beam are provided with recess adapted to pull rod.
[0009] As a further scheme of the utility model: the outer wall of the clamping plate is fixedly connected with two screw rods, the two ends of the bottom beam and the top beam are both provided with through holes matched with the screw rods, the screw rods are sleeved with second nuts after passing through the corresponding through holes.
[0010] As a further scheme of the utility model: the outer wall of the old bridge body towards the longitudinal joint is provided with an implantation muscle, the outer wall of the new bridge body towards the longitudinal joint is provided with a pre-buried muscle, a steel cage is arranged in the longitudinal joint, the implantation muscle and the pre-buried muscle are both welded and fixed with the steel cage, and the outer wall of the pull rod in the longitudinal joint is sleeved with a sleeve pipe.
[0011] Compared with the prior art, the utility model has the beneficial effects that:
[0012] The utility model discloses a cooperation of clamping mechanism and clamping plate can rigidly connect the old bridge body and the new bridge body, thereby making the load of the old bridge body can be transmitted to the new bridge body, the deformation and displacement of the old bridge body due to the load can be continuously transmitted to the new bridge body, thereby effectively reducing the deformation and displacement of the old bridge body and the new bridge body relative to the concrete in the longitudinal joint, improving the solidification quality of the concrete, effectively reducing the generation of cracks, through the setting of rubber blocks, the formwork can be pressed tightly at the bottom of the old bridge body and the new bridge body, thereby avoiding the leakage of the cast concrete, and the use effect is good. BRIEF DESCRIPTION OF DRAWINGS
[0013] Fig. 1 It is a kind of structure schematic view of beam body connecting device for bridge widening.
[0014] Fig. 2 It is a kind of structure schematic view of through hole in beam body connecting device for bridge widening.
[0015] Fig. 3 It is a kind of structure schematic view of groove in beam body connecting device for bridge widening.
[0016] Among them, old bridge body 1, implantation muscle 2, new bridge body 3, pre-buried muscle 4, longitudinal joint 5, steel cage 6, formwork 7, bottom beam 8, rubber block 9, pull rod 10, top beam 11, pull plate 12, first nut 13, groove 14, sleeve pipe 15, clamping plate 16, screw rod 17, second nut 18, through hole 19. DETAILED DESCRIPTION
[0017] The technical scheme in the embodiments of the utility model will be apparently and completely described below with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the range of protection of the utility model.
[0018] Please refer to Figs. 1-3 The utility model discloses an embodiment of a kind of beam connecting device for bridge widening, including clamping mechanism and four clamping plates 16 across the longitudinal joint 5 between old bridge body 1 and new bridge body 3, the clamping mechanism includes bottom beam 8 and top beam 11, bottom beam 8 and top beam 11 are located at the upper and lower sides of longitudinal joint 5 respectively, and bottom beam 8 and top beam 11 are detachably connected by multiple pull rods 10, the both ends of bottom beam 8 and top beam 11 are detachably connected with corresponding clamping plate 16, the top surface and bottom surface of old bridge body 1 and new bridge body 3 are attached with corresponding clamping plate 16, formwork 7 is provided below longitudinal joint 5, and the perforation for pull rod 10 is provided through on formwork 7, and rubber block 9 is provided at the corresponding place of the top of bottom beam 8 and formwork 7.
[0019] The utility model discloses an embodiment of a kind of beam connecting device for bridge widening, including clamping mechanism and four clamping plates 16 across the longitudinal joint 5 between old bridge body 1 and new bridge body 3, the clamping mechanism includes bottom beam 8 and top beam 11, bottom beam 8 and top beam 11 are located at the upper and lower sides of longitudinal joint 5 respectively, and bottom beam 8 and top beam 11 are detachably connected by multiple pull rods 10, the both ends of bottom beam 8 and top beam 11 are detachably connected with corresponding clamping plate 16, the top surface and bottom surface of old bridge body 1 and new bridge body 3 are attached with corresponding clamping plate 16, formwork 7 is provided below longitudinal joint 5, and the perforation for pull rod 10 is provided through on formwork 7, and rubber block 9 is provided at the corresponding place of the top of bottom beam 8 and formwork 7.
[0020] Specifically combined Fig. 1 And Fig. 3 In an embodiment of the utility model, the pull rod 10 is even, and several pull rods 10 are symmetrically distributed on the two sides of the top beam 11, the two ends of every two corresponding pull rods 10 are commonly sleeved with two pull plates 12, and the two ends of the pull rod 10 are sleeved with the first nut 13 after passing through the corresponding pull plate 12.
[0021] Through the cooperation of pull rod 10, pull plate 12 and first nut 13, only need to tighten first nut 13 on pull rod 10, top beam 11 and bottom beam 8 can be pulled tightly to each other, so as to realize the rigid connection between old bridge body 1 and new bridge body 3 by clamping plate 16.
[0022] Specifically combined Fig. 3 In an embodiment of the utility model, the both sides outer walls of bottom beam 8 and top beam 11 are all provided with recess 14 matched with pull rod 10, to facilitate the positioning installation of pull rod 10 on bottom beam 8 and top beam 11.
[0023] Specifically combined Fig. 2In an embodiment of the utility model, the outer wall of the clamping plate 16 is fixedly connected with two screw rods 17, the two ends of the bottom beam 8 and the top beam 11 are both provided with through holes 19 matched with the screw rods 17, and the screw rods 17 are sleeved with second nuts 18 after passing through the corresponding through holes 19.
[0024] Through the cooperation of the screw rod 17, the through hole 19 and the second nut 18, the clamping plate 16 can be conveniently disassembled and assembled at the two ends of the bottom beam 8 and the top beam 11.
[0025] Specifically combined Fig. 1 In an embodiment of the utility model, the outer wall of the old bridge body 1 towards the longitudinal joint 5 is provided with an embedded rib 2, the outer wall of the new bridge body 3 towards the longitudinal joint 5 is provided with a pre-buried rib 4, the longitudinal joint 5 is provided with a steel cage 6, the embedded rib 2 and the pre-buried rib 4 are both welded and fixed with the steel cage 6, and the outer wall of the pull rod 10 in the longitudinal joint 5 is sleeved with a sleeve pipe 15. Through the welded and fixed connection of the pre-buried rib 4, the embedded rib 2 and the steel cage 6, the rigid connection strength of the old bridge body 1 and the new bridge body 3 can be further improved. Through the arrangement of the sleeve pipe 15, the pull rod 10 can be prevented from contacting with the concrete, so that the pull rod 10 can be conveniently disassembled.
[0026] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A beam connecting device for bridge widening, characterized in that: The utility model provides a bridge body longitudinal joint clamping device, including the clamping mechanism and four clamping plates (16) across the longitudinal joint (5) between old bridge body (1) and new bridge body (3), the clamping mechanism includes bottom beam (8) and top beam (11), bottom beam (8) and top beam (11) are located at the upper and lower sides of longitudinal joint (5) respectively, and bottom beam (8) and top beam (11) are detachably connected through a plurality of pull rods (10), the both ends of bottom beam (8) and top beam (11) are detachably connected with corresponding clamping plate (16), the top surface and bottom surface of old bridge body (1) and new bridge body (3) are attached with corresponding clamping plate (16), the bottom of longitudinal joint (5) is provided with formwork (7), the perforation for pull rod (10) is provided on formwork (7) and is penetrated, and the top of bottom beam (8) is provided with rubber block (9) at corresponding place of formwork (7).
2. The beam connecting device for bridge widening according to claim 1, characterized in that: The pull rod (10) is even, and a plurality of pull rods (10) are symmetrically distributed on the both sides of top beam (11), the both ends of every two corresponding pull rods (10) are commonly sleeved with two pull plates (12), and the both ends of pull rod (10) are sleeved with first nut (13) after penetrating through corresponding pull plate (12).
3. The beam connecting device for bridge widening according to claim 1, characterized in that: The both sides outer walls of bottom beam (8) and top beam (11) are all provided with recess (14) matched with pull rod (10).
4. The beam connecting device for bridge widening according to claim 1, characterized in that: The outer wall of clamping plate (16) is fixedly connected with two screw rods (17), the both ends of bottom beam (8) and top beam (11) are all provided with through hole (19) matched with screw rod (17), and second nut (18) is sleeved with screw rod (17) after penetrating through corresponding through hole (19).
5. The beam connecting device for bridge widening according to claim 1, characterized in that: The outer wall of old bridge body (1) towards longitudinal joint (5) is provided with implantation muscle (2), the outer wall of new bridge body (3) towards longitudinal joint (5) is provided with pre-buried muscle (4), longitudinal joint (5) is provided with steel reinforcement cage (6), implantation muscle (2) and pre-buried muscle (4) are all welded with steel reinforcement cage (6), and the outer wall of pull rod (10) in longitudinal joint (5) is sleeved with sleeve pipe (15).