CN2873866Y - Bridge expansion device - Google Patents
Bridge expansion device Download PDFInfo
- Publication number
- CN2873866Y CN2873866Y CN 200620068424 CN200620068424U CN2873866Y CN 2873866 Y CN2873866 Y CN 2873866Y CN 200620068424 CN200620068424 CN 200620068424 CN 200620068424 U CN200620068424 U CN 200620068424U CN 2873866 Y CN2873866 Y CN 2873866Y
- Authority
- CN
- China
- Prior art keywords
- bolt
- side bar
- crab
- bridge
- bridge extension
- 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
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Abstract
The utility model relates to a bridge telescoping arrangement, in particular to a telescoping arrangement for overhead bridges in rail traffic projects. The utility model is to be mounted or reserved at the joints of beams of a bridge, pertains to member of a bridge building, which comprises a pair of side beams with insertion grooves and a pair of rubber waterstops that are inserted into the insertion grooves of side beams. The utility model is characterized in that the side beams are of aluminum alloy, their sections are roughly in right angled deltas or right angled trapezoids. Threaded holes are arranged in the joining faces between the side beams and the concrete. The side-beam anchors are anchoring bolts, one ends of which have threads. The anchoring bolts are fixed on the side beams by matching the threads on the bolts with the threaded holes. The utility model has the advantages of few components, simple structure, easiness in mounting and constructing; high strength, high resistance to fatigue, corrosion, wear and saving materials; threaded connection avoiding problems with welded connection; good joining effect between the side beams and concrete; good resistance to impact and vibration.
Description
Technical field
The utility model relates to a kind of bridge extension joint, and particularly a kind of railway traffic engineering elevated bridge stretching device is installed or reserved in the seam crossing of bridge beam body connecting portion, belongs to the bridge construction component of thing.
Background technology
As everyone knows, nature exists the phenomenon of expanding with heat and contract with cold, and this is the factor that must consider in the building design, as the bridge of building, must reserve the shrinkage joint when design.When to bridge construction, with bridge extension joint the shrinkage joint is covered, this stretching device is set at the both sides of bridge beam body with generally being symmetrical structure, adapt to the dilatation that bridge causes because of the influence of factors such as the impact that is subjected to variations in temperature, concrete shrinkage and creep, various load, earthquake by it, and play guarantee vehicle driving steadily, the effects such as application life, the view that beautifies bridge floor and waterproof and dustproof of prolongation bridge.
Present domestic widely used bridge extension joint, it is side bar same anchor slab, the dowel solid welding of being made by steel in advance as the side bar anchoring piece, the three is integrated, then rubber weather strip (claiming rubber fastening band again) is installed in the caulking groove of side bar, to cover the shrinkage joint.The defective that this bridge extension joint exists: at first, the anchor slab in the side bar anchoring piece is under the effect of bearing pressure and pulling force repeatedly, and very fast appearances in its welding position is tired and cause the sealing-off phenomenon, makes whole device damage morning; Secondly, when the back pouring concrete of bridge need be reorientated,,, then can cause scrapping of side bar and side bar anchoring piece once separating so can't separate owing to side bar, anchor slab, dowel three are that weldering is an integral body mutually; Again, the antiseptic property of steel is poor, and the corruption of very easily becoming rusty is peeled off, and influences attractive in appearance and application life.
Summary of the invention
Top priority of the present utility model be to provide a kind of simple in structure, make things convenient for that installation and construction, intensity height, self-preserving performance are good, adopt between side bar and the side bar anchoring piece be threaded and need not weld, the bridge extension joint of long service life.
Another task of the present utility model is to provide a kind of side bar to combine effective bridge extension joint with concrete.
For finishing top priority of the present utility model, the technical scheme that is provided is: a kind of bridge extension joint, by the side bar 1 of a pair of tool caulking groove 11 be respectively applied for and a pair of side bar 1 be installed to the side bar anchoring piece of sealing both sides, shrinkage joint and be embedded at rubber fastening band 2 on the caulking groove 11 of a pair of side bar 1, be characterized in: described side bar 1 is the aluminium alloys side bar, in rectangular triangle of its cross sectional shape or the right-angled trapezium any one, side bar 1 is furnished with screw 121 between on the bonding surface 12 that combines with concrete; Described side bar anchoring piece is a crab-bolt 3, and an end tool screw thread 31 of crab-bolt 3 is joined and crab-bolt 3 is fixed on the side bar 1 by the screw thread 31 and the spiral shell of screw 121.
For finishing another task of the present utility model, the technical scheme that is provided is: be provided with engaging groove 122 between going back on the bonding surface 12 that described side bar 1 combines with concrete.
The utility model also has additional pad 5, nut 4 on an end of described crab-bolt 3 tool screw threads 31, lock onto on the side bar 1 by the effect of pad 5, nut 4 and then with crab-bolt 3.
The utility model is at the other end tool flange 32 of described crab-bolt 3.
The cross sectional shape of rubber fastening band 2 described in the utility model is any one in U-shaped or the W shape.
Screw 121 described in the utility model is a blind hole.
Crab-bolt 3 described in the utility model is oblique crab-bolt and/or flat crab-bolt.
Crab-bolt 3 described in the utility model is a bolt.
One of advantage of the present utility model: component are few, simple in structure, be convenient to install and construction; Two, adopt cross sectional shape to be the aluminium alloys side bar 1 of right-angled triangle or right-angled trapezium after, not only the intensity height, can antifatigue, corrosion resistant, wear-resisting, material-saving, and with concrete between combine firm; Three, adopt between crab-bolt 3 and the side bar 1 be threaded after, need not welding, can effectively avoid the bad drawback that occurs behind the welding manner adopting; Four, the engaging groove 122 of side bar 1 on bonding surface 12 can further improve side bar and the concrete effect that combines; Five, crab-bolt 3 makes side bar 1 possess good impact resistance and shock resistance after adopting flat crab-bolts and oblique two kinds of form of structure of crab-bolt.
Description of drawings
Fig. 1 is an embodiment stereochemical structure sketch of the present utility model.
Fig. 2 is the sectional view of Fig. 1.
Fig. 3 is another embodiment plane structure sketch of the present utility model.
Fig. 4 is an embodiment plane structure sketch more of the present utility model.
Fig. 5 is an another embodiment plane structure sketch of the present utility model.
Among the figure: 1. side bar, 11. caulking grooves, 12. bonding surfaces, 121. screws, 122. engaging grooves; 2. rubber fastening band, 21. abaculus; 3. crab-bolt, 31. screw threads, 32. flanges; 4. nut; 5. pad; 6. concrete.
The specific embodiment
Ask for an interview Fig. 1 and in conjunction with Fig. 2, a pair of side bar 1 adopts the moulding of high-intensity aluminum alloy materials aluminium extruded, its cross sectional shape is triangular in shape haply, sidepiece in both corresponding sides is formed with caulking groove 11 respectively symmetrically, and side bar 1 the one side of its hypotenuse promptly with bonding surface 12 that concrete 6 combines between be furnished with screw 121, and also be formed with engaging groove 122 on bonding surface 12, wherein screw 121 is a blind hole, and engaging groove 122 is a concave-convex strip engaging groove.The cross sectional shape of rubber fastening band 2 is W shape haply, and its abaculus 21 by both sides is embedded into respectively in the caulking groove 11 on a pair of side bar 1, plays the sealing effect of covering the shrinkage joint.The crab-bolt 3 as the side bar anchoring piece shown in the figure is a bolt, one end end is shaped on screw thread 31, other end end is formed with flange 32, and also have additional the pad 5 that has locking effect on the end of screw thread 31 being shaped on, nut 4, simultaneously, consider from the mechanics angle, in same bridge extension joint, usually exist the crab-bolt 3 of two kinds of form of structure, to be crab-bolt 3 be parastate being connected between its tightening latch part of back and the bridge plane with screw 121 on the side bar 1 to wherein a kind of form of structure, this crab-bolt 3 is referred to as to call flat crab-bolt (being top a pair of crab-bolt 3 shown in the figure), to be crab-bolt 3 partly and between the bridge plane exist certain angle of inclination being connected its tightening latch of back with screw 121 on the side bar 1 to another kind of form of structure, this crab-bolt 3 is referred to as to call oblique crab-bolt (being following a pair of crab-bolt 3 shown in the figure), the connection of this form of structure can make the side bar 1 and the concrete at anchoring position be in stress all the time, uses guaranteeing that side bar 1 possesses good impact resistance and anti-vibration resistance.
Ask for an interview Fig. 3, the difference of this figure and Fig. 2 only is that the cross sectional shape of rubber fastening band 2 takes the shape of the letter U haply.
Ask for an interview Fig. 4, the cross sectional shape of a pair of side bar 1 that this figure illustrated roughly is trapezoidal, and the bonding surface 12 that combines with concrete 6 is respectively a right-angle side face and a hypotenuse face, on this right-angle side face and hypotenuse face, be shaped on screw respectively, wherein a pair of flat crab-bolt 3 is anchored in the screw on the right-angle side face of a pair of side bar 1, a pair of oblique crab-bolt 3 then is anchored in the screw on the hypotenuse face of side bar 1, and has saved pad 5, nut 4 when anchoring.
Ask for an interview Fig. 5, the difference of this figure and Fig. 4 only is: the cross sectional shape of the rubber fastening band 2 of Fig. 4 roughly is W shape, and the cross sectional shape of the rubber fastening band 2 of Fig. 5 roughly takes the shape of the letter U.
Claims (8)
1, a kind of bridge extension joint, by the side bar (1) of a pair of tool caulking groove (11) be respectively applied for and a pair of side bar (1) be installed to the side bar anchoring piece of sealing both sides, shrinkage joint and be embedded at rubber fastening band (2) on the caulking groove (11) of a pair of side bar (1), it is characterized in that described side bar (1) is the aluminium alloys side bar, in rectangular triangle of its cross sectional shape or the right-angled trapezium any one, side bar (1) is furnished with screw (121) between the bonding surface that combines with concrete (12) is gone up; Described side bar anchoring piece is crab-bolt (3), and an end tool screw thread (31) of crab-bolt (3) is joined and crab-bolt (3) is fixed on the side bar (1) by the spiral shell of screw thread (31) and screw (121).
2, bridge extension joint according to claim 1 is characterized in that being provided with engaging groove (122) between the bonding surface (12) that described side bar (1) combines with concrete is gone up also.
3, bridge extension joint according to claim 1, it is characterized in that on an end of described crab-bolt (3) tool screw thread (31), also having additional pad (5), nut (4), lock onto on the side bar (1) by the effect of pad (5), nut (4) and then with crab-bolt (3).
4, bridge extension joint according to claim 1 is characterized in that the other end tool flange (32) in described crab-bolt (3).
5, bridge extension joint according to claim 1, the cross sectional shape that it is characterized in that described rubber fastening band (2) are any one in U-shaped or the W shape.
6, bridge extension joint according to claim 1 is characterized in that described screw (121) is blind hole.
7, bridge extension joint according to claim 1 is characterized in that described crab-bolt (3) is oblique crab-bolt and/or flat crab-bolt.
8,, it is characterized in that described crab-bolt (3) is bolt according to claim 1 or 7 described bridge extension joints.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620068424 CN2873866Y (en) | 2006-01-10 | 2006-01-10 | Bridge expansion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620068424 CN2873866Y (en) | 2006-01-10 | 2006-01-10 | Bridge expansion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2873866Y true CN2873866Y (en) | 2007-02-28 |
Family
ID=37780461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620068424 Expired - Fee Related CN2873866Y (en) | 2006-01-10 | 2006-01-10 | Bridge expansion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2873866Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101638884B (en) * | 2009-08-18 | 2012-07-25 | 上海市城市建设设计研究院 | Flexible and denoising comb teeth retractor device |
| CN108316137A (en) * | 2018-01-16 | 2018-07-24 | 上海申继交通科技有限公司 | New bridge and old bridge beam longitudinal seam waterproof method and waterproof construction |
| CN113029067A (en) * | 2021-03-24 | 2021-06-25 | 马超 | Bridge expansion joint monitoring and connecting device |
-
2006
- 2006-01-10 CN CN 200620068424 patent/CN2873866Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101638884B (en) * | 2009-08-18 | 2012-07-25 | 上海市城市建设设计研究院 | Flexible and denoising comb teeth retractor device |
| CN108316137A (en) * | 2018-01-16 | 2018-07-24 | 上海申继交通科技有限公司 | New bridge and old bridge beam longitudinal seam waterproof method and waterproof construction |
| CN113029067A (en) * | 2021-03-24 | 2021-06-25 | 马超 | Bridge expansion joint monitoring and connecting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070228 Termination date: 20100210 |