CN202577145U - Anchoring device of bridge expansion device - Google Patents
Anchoring device of bridge expansion device Download PDFInfo
- Publication number
- CN202577145U CN202577145U CN 201220260112 CN201220260112U CN202577145U CN 202577145 U CN202577145 U CN 202577145U CN 201220260112 CN201220260112 CN 201220260112 CN 201220260112 U CN201220260112 U CN 201220260112U CN 202577145 U CN202577145 U CN 202577145U
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- Prior art keywords
- anchor bolt
- crab
- steel plate
- special
- notch
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- Expired - Fee Related
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Abstract
The utility model relates to an anchoring device of a bridge expansion device. The anchoring device comprises an anchor bolt steel plate, a special-shaped steel edge beam and an anchor bolt reinforcing steel bar, and the special-shaped steel edge beam and the anchor bolt reinforcing steel bar are fixedly welded on the anchor bolt steel plate; and a reinforcing steel bar is bent to form the anchor bolt reinforcing steel bar with a right angle and an acute angle, two ends of the anchor bolt reinforcing steel bar are welded on an upper plane of the anchor bolt steel plate, and the acute angle of the anchor bolt reinforcing steel bar ranges from 25 degrees to 45 degrees. A sunken rectangular notch is formed on the upper portion of the anchor bolt steel plate, the bottom of the special-shaped steel edge beam is positioned in the notch while the special-shaped steel edge beam and an upright surface of the notch cling to each other, and a weld joint of the notch is positioned at a joint between the special-shaped steel edge beam and the notch. The bent shape of the anchor bolt reinforcing steel bar is calculated and designed again, so that the anchor bolt reinforcing steel bar is effectively suitable to transmit load. The notch is formed on the upper portion of the anchor bolt steel plate, the bottom of the special-shaped steel edge beam is placed in the notch, and then contact portions of the special-shaped steel edge beam and the anchor bolt steel plate are welded, so that stress on the special-shaped steel edge beam can be transmitted to the notch of the anchor bolt steel plate, and cracking of the weld joint due to the fact that the weld joint directly bears shearing force is avoided.
Description
Technical field
The utility model relates to a kind of building unit, is specifically related to a kind of anchor device that is used for bridge extension joint.
Background technology
Along with the fast development of highway transportation, traffic volume of highway and carload lot are also increasing, and this is to each item demands for higher performance of highway bridge stretching device.Anchor device will be delivered to vehicular load in the bridge construction fast and go as one of most important stressed member of stretching device, and its rational design can improve the application life of stretching device greatly.Present most of anchor device does not pass through designing and calculating, and the bang path of load is unreasonable, makes random by force, often occurs very soon snapping, diseases such as distortion and changeover portion concrete breaking, has a strong impact on the application life of stretching device.
Summary of the invention
The utility model provides a kind of bang path of load that makes more reasonable in order to overcome the deficiency of above technology, has improved weld strength, has reduced the anchor device of the bridge extension joint of stress deformation.
The technical scheme that its technical problem that overcomes the utility model adopts is:
The anchor device of this bridge extension joint; Comprise the crab-bolt steel plate, be fixedly welded on the profile iron side bar and the crab-bolt reinforcing bar of crab-bolt steel plate; Said crab-bolt reinforcing bar forms a right angle and an acute angle by the reinforcing bar bending, and two ends is welded on the last plane of crab-bolt steel plate, and its acute angle angle is 25 °-45 °.
The top of above-mentioned crab-bolt steel plate is provided with the rectangular slits of a depression, and the bottom of profile iron side bar is positioned at otch and the facade of profile iron side bar and otch is fitted each other, and slot weld is positioned at the seam crossing of profile iron side bar and otch.
The diameter of the crab-bolt reinforcing bar of above-mentioned crab-bolt reinforcing bar is 14mm-22mm, and the thickness of said crab-bolt steel plate is 12mm-18mm.
Above-mentioned acute angle angle is preferably 30 °.
The beneficial effect of the utility model is: the curved shape through to the crab-bolt reinforcing bar recomputates design, makes it to be fit to more the transmission of load.On crab-bolt steel plate top otch is set; And bottom the deformed steel side bar, place in the otch; Afterwards again with the welding of the contact site of deformed steel side bar and crab-bolt steel plate; Thereby can be with the stressed incision site that is delivered to the crab-bolt steel plate of deformed steel side bar, avoided weld seam directly to bear shearing and the weld cracking that causes.According to Force Calculation, the thickness of choose reasonable crab-bolt steel plate and the diameter of crab-bolt reinforcing bar make it not only to satisfy requirement of strength but also save production cost.The anchor device of the bridge extension joint of the utility model is compared with existing other crab-bolt types and peg, and force structure is more reasonable, and the characteristics of rigidity anchoring are more outstanding, are more suitable for the highway bridge of heavily loaded traffic.Through using for a long time and observing, the anchor device of the bridge extension joint of the utility model has been strengthened the anchoring effect of stretching device, has improved the application life of stretching device.
Description of drawings
Fig. 1 is the structural representation of the anchor device of the utility model bridge extension joint;
Fig. 2 is that Figure 1A-A is to generalized section;
Among the figure, 1. profile iron side bar 2. crab-bolt steel plates 3. crab-bolt reinforcing bars 4. otch 5. slot welds.
The specific embodiment
Further specify below in conjunction with accompanying drawing 1,2 pairs of the utility model of accompanying drawing.
The anchor device of this bridge extension joint comprises crab-bolt steel plate 2, is fixedly welded on the profile iron side bar 1 and the crab-bolt reinforcing bar 3 of crab-bolt steel plate 2; It is characterized in that: said crab-bolt reinforcing bar 3 forms a right angle and an acute angle by the reinforcing bar bending; Two ends is welded on the last plane of crab-bolt steel plate 2, and its acute angle angle is 25 °-45 °.Vehicular load is delivered on the crab-bolt steel plate 2 through deformed steel side bar 1, is delivered in the bridge construction through crab-bolt reinforcing bar 3 and goes.
The curved shape of crab-bolt reinforcing bar 3 is carried out design improvement, make it to be fit to more the transmission of load.According to the regulation of " highway bridge and culvert design general specification " (JTG D60-2004) the 4.3rd, vertical static load is automobile wheel load 70KN, and horizontal static load is brake force 70 * 0.3=21 KN that automobile produces.Take wheel load and brake force according to the land ratio (80%) of length (200mm) of maximum functional width (160mm) and wheel load, the maximum vertical static load that therefore acts on the shaped steel end face is 70 * 80%=56KN, and the maximum horizontal static load is 21 * 80%=16.8KN.When not considering brake force, vertical static load will count impact force 1+ μ=1.45, and promptly the maximum vertical static load is 56 * 1.45=81.2KN.Therefore through calculating the curved shape that can draw crab-bolt reinforcing bar 3 the bests.So the acute angle that 3 bendings of crab-bolt reinforcing bar form, its angle is 25 °-45 °.And crab-bolt reinforcing bar 3 diameters through calculating are 14mm-22mm, and the thickness of said crab-bolt steel plate 2 is 12mm-18mm.Crab-bolt reinforcing bar 3 force-bearing situations were best when its preferred acute angle angle was 30 °, and the Load Transfer effect is best.The thickness of crab-bolt steel plate 2 is 14mm and crab-bolt reinforcing bar 3 diameters when being 18mm, and intensity can fully satisfy the demands and can make cost of production more reasonable.
The top of above-mentioned crab-bolt steel plate 2 is provided with the rectangular slits 4 of a depression, and the bottom of profile iron side bar 1 is positioned at otch 4 and the profile iron side bar 1 and the facade of otch 4 are fitted each other.Slot weld 5 is positioned at the seam crossing of profile iron side bar 1 and otch 4.Thereby can be with deformed steel side bar 1 stressed otch 4 positions that are delivered to crab-bolt steel plate 2, avoided weld seam directly to bear shearing and the weld cracking that causes.Make force structure more reasonable, be more suitable for the highway bridge of heavily loaded traffic.Strengthen the anchoring effect of stretching device, improved the application life of stretching device.
Claims (4)
1. the anchor device of a bridge extension joint; Comprise crab-bolt steel plate (2), be fixedly welded on the profile iron side bar (1) and the crab-bolt reinforcing bar (3) of crab-bolt steel plate (2); It is characterized in that: said crab-bolt reinforcing bar (3) forms a right angle and an acute angle by the reinforcing bar bending; Two ends is welded on the last plane of crab-bolt steel plate (2), and its acute angle angle is 25 °-45 °.
2. the anchor device of bridge extension joint according to claim 1; It is characterized in that: the top of said crab-bolt steel plate (2) is provided with the rectangular slits (4) of a depression; The bottom of profile iron side bar (1) is positioned at otch (4) and the profile iron side bar (1) and the facade of otch (4) is fitted each other, and slot weld (5) is positioned at the seam crossing of profile iron side bar (1) and otch (4).
3. the anchor device of bridge extension joint according to claim 1, it is characterized in that: the diameter of the crab-bolt reinforcing bar (3) of said crab-bolt reinforcing bar (3) is 14mm-22mm, and the thickness of said crab-bolt steel plate (2) is 12mm-18mm.
4. according to the anchor device of claim 1 or 2 or 3 described bridge extension joints, it is characterized in that: said acute angle angle is 30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220260112 CN202577145U (en) | 2012-06-05 | 2012-06-05 | Anchoring device of bridge expansion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220260112 CN202577145U (en) | 2012-06-05 | 2012-06-05 | Anchoring device of bridge expansion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202577145U true CN202577145U (en) | 2012-12-05 |
Family
ID=47246574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220260112 Expired - Fee Related CN202577145U (en) | 2012-06-05 | 2012-06-05 | Anchoring device of bridge expansion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202577145U (en) |
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2012
- 2012-06-05 CN CN 201220260112 patent/CN202577145U/en not_active Expired - Fee Related
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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: 20121205 Termination date: 20130605 |