CN210368616U - New and old bridge widening structure - Google Patents
New and old bridge widening structure Download PDFInfo
- Publication number
- CN210368616U CN210368616U CN201920658957.3U CN201920658957U CN210368616U CN 210368616 U CN210368616 U CN 210368616U CN 201920658957 U CN201920658957 U CN 201920658957U CN 210368616 U CN210368616 U CN 210368616U
- Authority
- CN
- China
- Prior art keywords
- boundary beam
- piece
- new
- boundary
- old bridge
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The utility model discloses a new and old bridge widens structure, include the boundary beam and widen the roof beam piece, be provided with first pea gravel concrete filling layer between flange board attach fitting and the boundary beam, just be provided with a plurality of pull rods between flange board attach fitting and the boundary beam, one side of boundary beam is provided with the enhancement backup pad that matches with flange board attach fitting, the inside of steel die block evenly is provided with a plurality of reinforcing bars of being connected with the boundary beam and widening the roof beam piece, just the inside of steel die block is provided with second pea gravel concrete filling layer. The utility model is provided with the reinforced support plate, which can improve the support capability of the flange plate connecting joint and enhance the bearing capability of the connecting part of the boundary beam and the widened beam piece; be provided with steel die block, reinforcing bar and second pea gravel concrete filling layer simultaneously, can make the boundary beam and widen being connected more firm between the bottom of roof beam piece, boundary beam and the junction non-deformable who widens the roof beam piece more can not be damaged long service life.
Description
Technical Field
The utility model belongs to the technical field of the bridge is widened, concretely relates to new and old bridge widens structure.
Background
The perfect and developed road traffic network is a necessary requirement for the development of social economy, and along with the rapid development of national economy, the upgrade and modification of the existing roads, particularly the node interchange, become a new hot point in the field of road engineering. The method has the advantages that how to widen and transform the cast-in-place box girder structure is realized, transformation efficiency is improved, transformation cost is reduced, and structural safety is guaranteed to become the key and focus of structural engineer attention.
Chinese patent application CN201420158353.X discloses a new and old bridge connection and reinforcement structure for bridge widening, which comprises a widened beam piece arranged on one side of a boundary beam of a girder to be widened, an upper flange plate of the widened beam piece is connected with an upper flange plate of the boundary beam, the inner side of the upper flange plate of the widened beam piece is a flange plate connection joint connected with the upper flange plate of the boundary beam, the flange plate connection joint and the upper flange plate of the boundary beam are fixedly connected into a whole through a plurality of rows of pull rods, a connection seam between the flange plate connection joint and the upper flange plate of the boundary beam is a Z-shaped seam, the Z-shaped seam comprises an upper seam, a lower seam and a middle seam, the upper seam and the lower seam are vertically arranged, the middle seam is an inclined seam, and fine aggregate concrete filling layers are filled in the upper seam and the middle seam. The utility model discloses a though simple structure, cost are low, the atress is reasonable and construction convenience, excellent in use effect, can solve the cost that current reinforcement method exists high, old bridge boundary beam and widen linking unstable between the roof beam piece, widen the relatively poor scheduling problem of wholeness of back bearing beam, but widen and only be connected through the pull rod between roof beam piece and the flange plate attach joint, the bearing capacity that leads to the pull rod like this is great, the bearing capacity of bridge is more weak. We propose a new and old bridge widening structure for this purpose.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a new and old bridge widens structure to propose in solving above-mentioned background art and widen only to be connected through the pull rod between beam slab and the flange board attach fitting, the bearing capacity that leads to the pull rod like this is great, the bearing capacity weak problem of bridge.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a new and old bridge widens structure, includes the boundary beam and widens the roof beam piece, the one end of widening the roof beam piece is provided with the flange board attach fitting who matches with the boundary beam, be provided with first pea gravel concrete filling layer between flange board attach fitting and the boundary beam, just be provided with a plurality of pull rods between flange board attach fitting and the boundary beam, one side of boundary beam is provided with the enhancement backup pad that matches with flange board attach fitting, the boundary beam with widen and be provided with the steel die block between the roof beam piece, the inside of steel die block evenly is provided with a plurality of reinforcing bars that are connected with the boundary beam and widen the roof beam piece, just the inside of steel die block is provided with second pea gravel concrete filling layer.
Preferably, the widened beam piece is uniformly provided with a plurality of stressed steel bars inside, and the stressed steel bars are located below the first fine aggregate concrete filling layer.
Preferably, the cross section of the steel bottom die is of a U-shaped structure.
Preferably, a plurality of anchor bolts are arranged between the reinforcing support plate and the edge beam.
Preferably, the distance between two adjacent pull rods is 15 cm-25 cm.
Preferably, the bottom surface of the flange plate connecting joint is a horizontal plane.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model is provided with the reinforced support plate, which can improve the support capability of the flange plate connecting joint and enhance the bearing capability of the connecting part of the boundary beam and the widened beam piece; be provided with steel die block, reinforcing bar and second pea gravel concrete filling layer simultaneously, can make the boundary beam and widen being connected more firm between the bottom of roof beam piece, boundary beam and the junction non-deformable who widens the roof beam piece more can not be damaged long service life.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a front view of the present invention;
in the figure: 1. a boundary beam; 2. an anchor bolt; 3. a first fine-grained concrete filling layer; 4. a pull rod; 5. stressed steel bars; 6. widening the beam piece; 7. reinforcing the support plate; 8. a steel bottom die; 9. reinforcing steel bars; 10. a second fine-grained concrete filling layer; 11. the flange plate is connected with the joint.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a new and old bridge widens structure, includes boundary beam 1 and widens roof beam piece 6, the one end of widening roof beam piece 6 is provided with the flange board attach fitting 11 who matches with boundary beam 1, be provided with first pea gravel concrete filling layer 3 between flange board attach fitting 11 and the boundary beam 1, just be provided with a plurality of pull rods 4 between flange board attach fitting 11 and the boundary beam 1, one side of boundary beam 1 is provided with the enhancement backup pad 7 who matches with flange board attach fitting 11, be provided with steel die block 8 between boundary beam 1 and the widening roof beam piece 6, steel die block 8's inside evenly is provided with a plurality of reinforcing bars 9 of being connected with boundary beam 1 and widening roof beam piece 6, just steel die block 8's inside is provided with second pea gravel concrete filling layer 10.
Widen the inside of roof beam piece 6 and evenly be provided with a plurality of atress reinforcing bars 5, atress reinforcing bar 5 is located the below of first fine aggregate concrete filling layer 3, the cross-section of steel die block 8 is U type structure, it is provided with a plurality of crab-bolts 2 to strengthen between backup pad 7 and the boundary beam 1, adjacent two interval between pull rod 4 is 15cm ~ 25cm, flange board attach joint 11's bottom surface is the horizontal plane.
It should be noted that, the utility model relates to a new and old bridge widens structure, if:
fig. 1 is a schematic structural view of the present invention; fig. 2 is a front view of the present invention. The utility model discloses when operating, make the flange plate attach fitting 11 who widens 6 one ends of roof beam piece remove the bottom of boundary beam 1, utilize pull rod 4 to fix, and add first pea gravel concrete filling layer 3 in gap department, adopt crab-bolt 2 to be fixed in one side of boundary beam 1 with reinforced support plate 7, reinforced support plate 7 is located flange plate attach fitting 11's below this moment, play the supporting role to flange plate attach fitting 11, utilize second pea gravel concrete filling layer 10 to be connected steel die block 8 and boundary beam 1 and widening roof beam piece 6 at last, and it fixes to add second pea gravel concrete filling layer 10 in the inside of steel die block 8.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a new and old bridge widens structure, includes boundary beam (1) and widens piece of girder (6), its characterized in that: widen the one end of roof beam piece (6) and be provided with flange board attach fitting (11) with boundary beam (1) matching, be provided with first pea gravel concrete filling layer (3) between flange board attach fitting (11) and boundary beam (1), just be provided with a plurality of pull rods (4) between flange board attach fitting (11) and boundary beam (1), one side of boundary beam (1) is provided with reinforced support plate (7) with flange board attach fitting (11) matching, boundary beam (1) and widen and be provided with steel die block (8) between roof beam piece (6), the inside of steel die block (8) evenly is provided with a plurality of reinforcing bars (9) of being connected with boundary beam (1) and widening roof beam piece (6), just the inside of steel die block (8) is provided with second pea gravel concrete filling layer (10).
2. A new and old bridge widening structure according to claim 1, wherein: widen the inside of roof beam piece (6) and evenly be provided with a plurality of atress reinforcing bars (5), atress reinforcing bar (5) are located the below of first fine aggregate concrete filling layer (3).
3. A new and old bridge widening structure according to claim 1, wherein: the section of the steel bottom die (8) is of a U-shaped structure.
4. A new and old bridge widening structure according to claim 1, wherein: a plurality of anchor bolts (2) are arranged between the reinforcing support plate (7) and the side beam (1).
5. A new and old bridge widening structure according to claim 1, wherein: the distance between two adjacent pull rods (4) is 15-25 cm.
6. A new and old bridge widening structure according to claim 1, wherein: the bottom surface of the flange plate connecting joint (11) is a horizontal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920658957.3U CN210368616U (en) | 2019-05-09 | 2019-05-09 | New and old bridge widening structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920658957.3U CN210368616U (en) | 2019-05-09 | 2019-05-09 | New and old bridge widening structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210368616U true CN210368616U (en) | 2020-04-21 |
Family
ID=70259632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920658957.3U Expired - Fee Related CN210368616U (en) | 2019-05-09 | 2019-05-09 | New and old bridge widening structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210368616U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111827149A (en) * | 2020-09-01 | 2020-10-27 | 浙江世润建创科技发展有限公司 | Bridge widening hinge structure and construction method |
-
2019
- 2019-05-09 CN CN201920658957.3U patent/CN210368616U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111827149A (en) * | 2020-09-01 | 2020-10-27 | 浙江世润建创科技发展有限公司 | Bridge widening hinge structure and construction method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103924505B (en) | Use prefabricated steel-concrete combination T beam and the construction method of Wavelike steel webplate | |
| CN108678417B (en) | Steel construction floor reforms transform node | |
| CN203593939U (en) | Connecting structure of concrete beams differing in performance | |
| CN103556565A (en) | Connection construction for girders made of concrete with different performance | |
| CN105386404A (en) | Girder bridge structure formed by combining open U-shaped steel box girders and hybrid fiber concrete bridge decks | |
| CN210368616U (en) | New and old bridge widening structure | |
| CN203684526U (en) | PBL stiffened rectangular steel tube concrete space truss | |
| CN101906757A (en) | Assembly method for replacing plate type rubber support on abutment of highway bridge | |
| CN211141349U (en) | Track panel well gantry crane foundation fixing structure | |
| CN206902720U (en) | A kind of Guan Liang structure for being easy to reclaim I-steel | |
| CN201016157Y (en) | Steel-mixing composite box beam | |
| CN213476666U (en) | Limiting device for main pier during integral jacking of main bridge steel box girder | |
| CN210238317U (en) | Concrete simply supported hollow slab beam carries reinforced structure | |
| CN209722745U (en) | A kind of no bracket concrete mould board supporting structure | |
| CN208792806U (en) | A kind of floor of steel structure transformation node | |
| CN110644354B (en) | Bridge abutment rigid frame bridge retaining wall structure and construction method thereof | |
| CN113403943A (en) | Guardrail roadbed integrated configuration for bridge | |
| CN208266616U (en) | A kind of I-shaped glass-fiber reinforced plastic grille construction site temporary pavement | |
| CN206887746U (en) | A kind of concrete circular stub binder backward construction column-form | |
| CN217078449U (en) | Transition pier material transportation platform for extra-large cable bridge | |
| CN205420992U (en) | Beam bridge structure that steel case roof beam and assorted fibre concrete bridge panel of remaining silent made up | |
| CN213572371U (en) | Prefabricated cabin transformer substation pin-connected panel steel construction foundation butt-joint structural | |
| CN216740348U (en) | Prestressed concrete single-slope double-T plate | |
| CN217053086U (en) | Quick bridge widening structure without traffic interruption | |
| CN219197363U (en) | Civil engineering bridge tunnel reinforced structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No.8, administrative Road, Shihe District, Xinyang City, Henan Province Patentee after: Xinyang Xintong Highway Survey and Design Co.,Ltd. Address before: 464000 eastern section of administrative Road, Henan, Xinyang Patentee before: XINYANG HIGHWAY SURVEY AND DESIGN INSTITUTE |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200421 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |