CN214362840U - Novel hinge joint connecting structure of assembled beam bridge or slab bridge - Google Patents
Novel hinge joint connecting structure of assembled beam bridge or slab bridge Download PDFInfo
- Publication number
- CN214362840U CN214362840U CN202022681039.8U CN202022681039U CN214362840U CN 214362840 U CN214362840 U CN 214362840U CN 202022681039 U CN202022681039 U CN 202022681039U CN 214362840 U CN214362840 U CN 214362840U
- Authority
- CN
- China
- Prior art keywords
- plate
- assembled beam
- hinge joint
- steel bars
- shaped
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The utility model relates to a novel hinge joint connection structure of assembled beam bridge or slab bridge, including assembled roof beam (board), U-shaped reinforcing bar, L shape reinforcing bar, longitudinal reinforcement, short horizontal muscle, bolt and steel connecting plate. Two bolts are with the welding of short horizontal muscle, L shape reinforcing bar and the welding of short horizontal muscle, and U-shaped reinforcing bar position welding constitutes a reinforcing bar group on L shape reinforcing bar from top to bottom, and two assembled roof beam (board) butt joints of pre-buried a plurality of reinforcing bar group are located on the connecting steel plate and are fixed through pre-buried bolted connection, and L shape reinforcing bar overlap joint overlaps and the ligature is fixed, and vertical reinforcing bar passes the U-shaped reinforcing bar of overlapping and rather than the ligature fixed. The beneficial effects are as follows: the hinge joint runs through the whole section of beam slab bridge, can solve the design and reserve the expansion joint and easily lead to bottom hinge joint concrete fracture problem, improves hinge joint connection quality, and the wholeness of roof beam (board) bridge after the connection is good, and the atress is more even, and the bearing capacity increase, the durability of hinge joint increase, improves the life of roof beam (board) bridge.
Description
Technical Field
The utility model relates to a bridge construction engineering technical field especially relates to a novel hinge joint connection structure of assembled beam bridge or slab bridge.
Background
With the rapid development of socioeconomic of China, the construction of highway traffic is leapfrog, and bridges serving as connecting links in the highway traffic are large in quantity and high in technical difficulty, and are easy to generate various diseases in use. According to data of '2018 traffic transportation industry development statistics bulletin', the number of bridges in China is on the trend of rising year by year, and most of the bridges are medium and small span bridges. Among the bridges with medium and small span, the fabricated beam (plate) bridge is widely applied to bridge engineering due to the advantages of simple prefabrication, installation and construction process, low engineering cost and the like. The bridge hinge joint plays an important role in transverse connection stress, and is a key part and a weak part. In the actual engineering, because receive design factor, construction factor and service environment factor's influence, the hinge joint takes place to destroy very easily, in case the hinge joint destroys the back, if not in time consolidate, can form gradually and lead to the seam, forms the veneer atress at last and the disease appears and destroys.
At present, a typical conventional hinge joint structure is shown in fig. 4, and the following defects mainly exist:
1) the arrangement of the embedded steel bars is complex, so that the concrete pouring is not facilitated to be vibrated and compacted, the hinge joint quality is not high, and the hidden danger of causing the hinge joint diseases exists;
2) the hinge joint is only limited at the position of a gap reserved for pouring concrete at the upper parts of two butted beam plates, and the connected beam (plate) bridge has poor integrity, poor stress and small bearing capacity, so that the play of the hinge joint effect is influenced;
3) the expansion joint of 1cm is designed and reserved at the bottom of the hinge joint, so that the bottom concrete is easy to crack under the repeated action of vehicle load;
4) the hinge joint has poor durability, and the service life of the beam (plate) bridge is short.
SUMMERY OF THE UTILITY MODEL
For overcoming the prior art defect, the utility model provides a technical problem provide a novel hinge joint connection structure of assembled beam bridge or slab bridge, the hinge joint runs through the whole section of beam slab bridge, can solve the design and reserve the expansion joint and easily lead to bottom hinge joint concrete fracture problem, improves hinge joint connection quality, and the wholeness of roof beam (board) bridge after connecting is good, and the atress is more even, and the bearing capacity increases, and the durability of hinge joint increases, improves the life of roof beam (board) bridge.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a novel hinge joint connecting structure of an assembled beam bridge or a slab bridge comprises an assembled beam or slab, U-shaped reinforcing steel bars, L-shaped reinforcing steel bars, longitudinal reinforcing steel bars, short transverse steel bars, bolts and connecting steel plates, and is characterized in that the bolts are two groups of short transverse steel bars welded and fixed at the end parts of bolt caps at certain intervals, the end part of one side of each L-shaped reinforcing steel bar is welded in the middle of each short transverse steel bar, the other side of each L-shaped reinforcing steel bar is suspended, the direction of each L-shaped reinforcing steel bar is consistent with the length direction of each short transverse steel bar, the two U-shaped reinforcing steel bars are arranged up and down along the L-shaped reinforcing steel bars and welded and fixed with the L-shaped reinforcing steel bars to form a reinforcing steel bar group, and a plurality of reinforcing steel bar groups are respectively pre-embedded at the side parts of the width direction of the two assembled beam or slab which are assembled together in a lap joint manner; the assembly type beam or plate is in butt joint with the connecting steel plate and is fixedly connected through an embedded bolt, wherein the embedded U-shaped steel bars are overlapped, and the embedded L-shaped steel bars are also overlapped, bound and fixed together; the number of the longitudinal steel bars is 2, and the longitudinal steel bars respectively penetrate through the overlapped U-shaped steel bars and are bound and fixed with the U-shaped steel bars.
The distance between the U-shaped steel bar position and the upper surface and the lower surface of the assembly type beam or plate is not less than 5cm, the length of the embedded assembly type beam or plate concrete is not less than 10cm, the length of the U-shaped steel bar extending out of the assembly type beam or plate is ensured to be overlapped with the length of the U-shaped steel bar corresponding to the adjacent assembly type beam or plate extending out of the assembly type beam or plate during lap joint, and the overlapping distance is not less than the diameter of the longitudinal steel bar.
The distance between the position of the L-shaped steel bar and the upper surface of the assembly type beam or plate is not less than 5cm, the length of the embedded assembly type beam or plate concrete is not less than 10cm, the length of the extending assembly type beam or plate is required to ensure that the length of the extending assembly type beam or plate corresponding to the L-shaped steel bar of the adjacent assembly type beam or plate is overlapped with the length of the extending assembly type beam or plate corresponding to the L-shaped steel bar when the assembly type beam or plate is lapped, and the overlapping distance is not less than 10 cm.
The diameter of the longitudinal steel bar is the same as that of the pre-embedded steel bar of the assembly type beam or plate, the length of the longitudinal steel bar penetrates through the length of the assembly type beam or plate, and the distance between the two end parts and the outer surface of the assembly type beam or plate in the length direction is not less than 5 cm.
And the connecting steel plate is provided with a mounting long hole matched with the bolt.
Compared with the prior art, the beneficial effects of the utility model are that:
1) the arrangement of the reinforcing steel bars is more simplified and effective than the arrangement of the traditional hinge joint reinforcing steel bars, so that the vibration compaction is facilitated, the construction quality of the hinge joint is effectively ensured, and the damage of the hinge joint caused by the construction quality problem is avoided;
2) compared with the traditional hinge joint, the novel hinge joint of the utility model and the assembled beam (plate) form a whole body which is firmer, has better whole stress performance, can better play the role of hinge joint and reduce hinge joint diseases;
3) compared with the traditional hinge joint, the novel hinge joint device is provided with the steel plate and the bolt at the lower part of the assembled beam (plate) for anchoring, the tensile strength of the steel plate is high, the problem of concrete cracking can be well solved, and meanwhile, the bearing capacity and the shear strength of the hinge joint device are remarkably improved;
4) by carrying out comparative analysis on the traditional hinge joint and the novel hinge joint, taking an 8m standard span hollow plate and taking a test piece with a length of 0.5m and a reduced size as an example for testing, the novel hinge joint is obtained, and compared with the traditional hinge joint, the bearing capacity of the novel hinge joint is improved by at least 42%; by comparing the deflection of the two hinge joint test piece supports and the deflection of the bottom of the hinge joint, the deflection of the novel hinge joint test piece is always smaller than that of the traditional hinge joint test piece under the same load; the deflection at the position of the novel hinge joint support is reduced by 30.01 percent, the deflection at the bottom of the hinge joint is reduced by 31.37 percent, and the deformation resistance of the novel hinge joint of the utility model is improved by at least 30 percent; to sum up, no matter hinge joint bearing capacity or anti deformability, this utility model discloses hinge joint all is far superior to traditional hinge joint, more can exert the effect of transmitting horizontal load.
Drawings
Fig. 1 is a schematic view of the structure principle of the present invention;
FIG. 2 is a schematic perspective view (cut away) of the structure principle of the present invention;
FIG. 3 is a schematic diagram of the connection relationship structure of the embedded steel bar groups of the present invention;
fig. 4 is a schematic diagram of a conventional hinge joint structure.
In the figure: 1-bridge deck pavement layer 2-fabricated beam (plate) 3-U-shaped steel bar 4-L-shaped steel bar 5-longitudinal steel bar 6-short transverse bar 7-bolt 8-connecting steel plate 9-upper embedded bar 10-shear bar 11-longitudinal bar 12-bottom embedded bar 13-pavement layer
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:
the utility model relates to a novel hinge joint connection structure of assembled roof beam (board) bridge, as shown in fig. 1-3, including assembled roof beam (board) 2, U-shaped reinforcing bar 3, L shape reinforcing bar 4, longitudinal reinforcement 5, short horizontal muscle 6, bolt 7 and connecting steel plate 8, bolt 7 is two a set of interval certain distance and uses short horizontal muscle 6 welded fastening at the bolt cap tip, the tip welding of L shape reinforcing bar 4 one side is in the middle part of short horizontal muscle 6, the other side is unsettled and the direction is unanimous with short horizontal muscle 6 length direction, U-shaped reinforcing bar 3 is two, arrange from top to bottom along L shape reinforcing bar 4 and constitute a reinforcing bar group with L shape reinforcing bar 4 welded fastening, a plurality of reinforcing bar group pre-buries respectively in the lateral part of the width direction of two assembled roof beam (board) 2 of planning the overlap joint assembly together; the assembly type beam (plate) 2 is in butt joint with a connecting steel plate 8 and is fixedly connected through an embedded bolt 7, wherein the embedded U-shaped steel bars 3 are overlapped, and the embedded L-shaped steel bars 4 are also overlapped, bound and fixed together; the number of the longitudinal steel bars 5 is 2, and the longitudinal steel bars respectively penetrate through the overlapped U-shaped steel bars 3 and are bound and fixed together with the U-shaped steel bars.
The distance between the position of the U-shaped steel bar 3 and the upper surface and the lower surface of the assembly type beam (plate) 2 is not less than 5cm (enough safety layer concrete thickness is reserved), the length of concrete embedded in the assembly type beam (plate) 2 is not less than 10cm, the length of the extending assembly type beam (plate) 2 is ensured to be overlapped with the length of the extending assembly type beam (plate) of the U-shaped steel bar 3 corresponding to the adjacent assembly type beam (plate) 2 during the overlapping and assembling, the overlapping distance is not less than the diameter of the longitudinal steel bar 5, the longitudinal steel bar 5 can be easily inserted, and the overlapping quality is ensured.
The distance between the position of the L-shaped steel bar 4 and the upper surface of the assembled beam (plate) 2 is not less than 5cm (enough safety layer concrete thickness is reserved), the length of concrete embedded in the assembled beam (plate) 2 is not less than 10cm, the length of the extending assembled beam (plate) 2 is equal to or more than 10cm, the length of the extending assembled beam (plate) 2 corresponding to the L-shaped steel bar 4 corresponding to the adjacent assembled beam (plate) 2 during the overlapping and assembling process is ensured to be overlapped, the overlapping distance is not less than 10cm, and the binding quality is ensured.
The diameter of the longitudinal steel bars 5 is the same as that of embedded steel bars of the assembly type beam (plate) 2, the length of the longitudinal steel bars penetrates through the length of the assembly type beam (plate) 2, the distance between the two end parts and the outer surface of the assembly type beam (plate) 2 in the length direction is not less than 5cm, and the thickness of concrete on a safety layer is enough.
And the connecting steel plate 8 is provided with a mounting long hole matched with the bolt 7, so that the position of the bolt 7 can be adjusted when the assembled beam (plate) 2 is conveniently hoisted.
The field installation and construction process comprises the following steps:
1) the connecting steel plate 8 is located on the bridge pier;
2) respectively hoisting the assembled beams (plates) 2 of the two embedded steel bar groups, so that the embedded bolts 7 pass through the mounting long holes formed in the connecting steel plates 8 and are in butt joint with the connecting steel plates 8;
3) binding and fixing the overlapped and overlapped pre-embedded L-shaped steel bars 4 together, and respectively penetrating the 2 longitudinal steel bars 5 through the overlapped U-shaped steel bars 3 and binding and fixing the same together;
4) screwing a bolt 7 and a nut to be fixed with the connecting steel plate 8 to complete the hinge joint lap joint;
5) pouring concrete at the hinge joint;
6) and pouring the bridge deck pavement layer 1.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (4)
1. A novel hinge joint connecting structure of an assembled beam bridge or a slab bridge comprises an assembled beam or slab, U-shaped reinforcing steel bars, L-shaped reinforcing steel bars, longitudinal reinforcing steel bars, short transverse steel bars, bolts and connecting steel plates, and is characterized in that the bolts are two groups of short transverse steel bars welded and fixed at the end parts of bolt caps at certain intervals, the end part of one side of each L-shaped reinforcing steel bar is welded in the middle of each short transverse steel bar, the other side of each L-shaped reinforcing steel bar is suspended, the direction of each L-shaped reinforcing steel bar is consistent with the length direction of each short transverse steel bar, the two U-shaped reinforcing steel bars are arranged up and down along the L-shaped reinforcing steel bars and welded and fixed with the L-shaped reinforcing steel bars to form a reinforcing steel bar group, and a plurality of reinforcing steel bar groups are respectively pre-embedded at the side parts of the width direction of the two assembled beam or slab which are assembled together in a lap joint manner; the assembly type beam or plate is in butt joint with the connecting steel plate and is fixedly connected through an embedded bolt, wherein the embedded U-shaped steel bars are overlapped, and the embedded L-shaped steel bars are also overlapped, bound and fixed together; the number of the longitudinal steel bars is 2, and the longitudinal steel bars respectively penetrate through the overlapped U-shaped steel bars and are bound and fixed with the U-shaped steel bars.
2. The novel hinge joint connecting structure of assembled beam bridge or plate bridge according to claim 1, wherein the U-shaped steel bar is located at a distance of not less than 5cm from the upper and lower surfaces of the assembled beam or plate, the length of the U-shaped steel bar embedded in the concrete of the assembled beam or plate is not less than 10cm, the length of the U-shaped steel bar extending out of the assembled beam or plate is such that the length of the U-shaped steel bar extending out of the assembled beam or plate corresponding to the adjacent assembled beam or plate is overlapped when the assembled beam or plate is lapped, and the overlapping distance is not less than the diameter of the longitudinal steel bar.
3. The novel hinge joint connecting structure for assembled beam bridges or plate bridges according to claim 1, wherein the distance between the position of the L-shaped steel bar and the upper surface of the assembled beam or plate is not less than 5cm, the length of the L-shaped steel bar embedded in the concrete of the assembled beam or plate is not less than 10cm, and the length of the L-shaped steel bar extending out of the assembled beam or plate is ensured to be overlapped with the length of the L-shaped steel bar corresponding to the adjacent assembled beam or plate extending out of the assembled beam or plate during the overlapping, and the overlapping distance is not less than 10 cm.
4. The novel hinge joint connecting structure of the assembled beam bridge or slab bridge according to claim 1, wherein the diameter of the longitudinal steel bars is the same as that of the embedded steel bars of the assembled beam or slab, the longitudinal steel bars run through the length of the assembled beam or slab, and the distance between the two end parts and the outer surface of the assembled beam or slab in the length direction is not less than 5 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022681039.8U CN214362840U (en) | 2020-11-18 | 2020-11-18 | Novel hinge joint connecting structure of assembled beam bridge or slab bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022681039.8U CN214362840U (en) | 2020-11-18 | 2020-11-18 | Novel hinge joint connecting structure of assembled beam bridge or slab bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214362840U true CN214362840U (en) | 2021-10-08 |
Family
ID=77977695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022681039.8U Active CN214362840U (en) | 2020-11-18 | 2020-11-18 | Novel hinge joint connecting structure of assembled beam bridge or slab bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214362840U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112323619A (en) * | 2020-11-18 | 2021-02-05 | 辽宁科技大学 | Novel hinge joint connecting structure of assembled beam (plate) bridge |
-
2020
- 2020-11-18 CN CN202022681039.8U patent/CN214362840U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112323619A (en) * | 2020-11-18 | 2021-02-05 | 辽宁科技大学 | Novel hinge joint connecting structure of assembled beam (plate) bridge |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103590322B (en) | A kind of shear connector, combination beam and its construction method containing the shear connector | |
| CN205205646U (en) | Structure of reinforcing prefabricated segment formula concrete bridge intersegmental connection of festival | |
| CN113047161A (en) | Joint structure of NC-UHPC (numerical control-ultra high-performance polycarbonate) hybrid rigid frame bridge, hybrid rigid frame bridge and construction method of hybrid rigid frame bridge | |
| CN104652242A (en) | Derrick connecting structure used for reinforcing PSC (Pre-stressed Concrete) continuous box girder bridge and construction method | |
| CN214362840U (en) | Novel hinge joint connecting structure of assembled beam bridge or slab bridge | |
| CN101368374B (en) | Pretensioning method for converting old simply supported beam bridge into continuous bridge | |
| CN108457182A (en) | A kind of cross bridge floor board and its construction technology | |
| CN103614975A (en) | Shear connector reinforcing method for failed hinge joint of assembly-type hollow slab girder | |
| CN112323619A (en) | Novel hinge joint connecting structure of assembled beam (plate) bridge | |
| CN210827072U (en) | Middle seamless telescopic structure of middle and small-span simply-supported highway bridge | |
| CN108625278B (en) | Hollow slab bridge hinge joint connecting piece and stress checking calculation method thereof | |
| CN208219448U (en) | A kind of bracing means carrying out hollow slab bridge using hinge gap space | |
| CN110886185A (en) | Box girder with anchoring device and box girder bridge | |
| CN113026555A (en) | Combined beam structure of prefabricated steel plate beam and combined bridge deck | |
| CN113718647B (en) | Assembled combination steel bridge deck structure | |
| CN103835229B (en) | A kind of comb-tooth bridge expansion device of self adaptation multi-directional deflection | |
| CN214737322U (en) | Assembled mound roof beam concreties structure | |
| CN213804892U (en) | Precast concrete bridge structures based on hollow core slab | |
| CN114214930A (en) | Fully-prefabricated assembled bridge expansion device | |
| CN209759937U (en) | Bridge deck pavement structure and bridge structure | |
| CN210657801U (en) | Ballast wall structure of corrugated steel web of general-speed and heavy-duty railway | |
| CN112982189A (en) | Steel plate girder wide hollow slab girder structure | |
| CN112796201A (en) | Assembled mound roof beam concreties structure | |
| CN112900228A (en) | Non-prestressed T-shaped beam with corrugated steel web | |
| CN208517806U (en) | A kind of combined bridge improving shear connector fatigue life |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |