CN213740643U - General strutting arrangement of bridge jacking - Google Patents
General strutting arrangement of bridge jacking Download PDFInfo
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- CN213740643U CN213740643U CN202021834171.1U CN202021834171U CN213740643U CN 213740643 U CN213740643 U CN 213740643U CN 202021834171 U CN202021834171 U CN 202021834171U CN 213740643 U CN213740643 U CN 213740643U
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Abstract
The utility model provides a general strutting arrangement of bridge jacking, including the bent cap, the bearing structure unit, the friction backing plate, the bolt, the connecting pin bolt, the friction backing plate is on a parallel with the bent cap and hugs closely in the both sides side of bent cap, set up between bearing structure unit and bent cap, the bearing structure unit is hugged closely in the outside of friction backing plate and is fixed in the side of bent cap, the bearing structure unit is by the roof, the bottom plate, stiffening rib and bottom connecting plate looks mutual weld combination form, the lateral surface of friction backing plate is hugged closely to the bottom plate, the roof perpendicular to bottom plate sets up in the top of bottom plate, 1 stiffening rib vertical separation at least sets up in the outside of bottom plate, bottom connecting plate perpendicular to bottom plate sets up in the bottom of bottom plate and is parallel to each other with the roof. The utility model discloses the structure can be recycled, saves the cost, and the combination is nimble, and the dead weight is light, and the commonality is strong, provides the arbitrary possible holding power of bridge jacking.
Description
Technical Field
The utility model relates to a bridge construction equipment, concretely relates to general strutting arrangement of bridge jacking belongs to bridge construction technical field.
Background
Bridge bearings are important structural components that connect the superstructure and substructure of a bridge. Since many bridges find that the support is damaged and abnormally displaced due to quality problems or construction problems in the inspection process, the support replacement becomes an important task. In addition, due to environmental changes, river level increases, or changes in the use function of the bridge, the bridge often needs to be lifted as a whole, so that the whole bridge is lifted to a predetermined design height. The whole jacking replacement of bridge beam supports and bridges generally adopts a hydraulic jack to jack the bridge, and the key technical difficulty of bridge jacking is how to provide strong jacking counter-force support.
When the jacking counter-force support adopts a full-framing method, the problems of high consumption of the support formwork for construction, long construction period, limitation on high piers and mountainous bridges and the like exist. The existing top surface of the capping beam is directly utilized and is often limited by the space constraint of the top surface of the capping beam, the contact area between the bottom of a hydraulic jack of the bridge jacking device and the bridge is small, so that the pressure is large, the bridge can be damaged, and the jack cannot be successfully placed due to large stress. For example, chinese patent CN 209162665U discloses a bridge engineering jacking bracket, which includes a base, a pier stud, a cast steel pipe bracket, a jacking table, a jacking reinforcing bracket, a first mounting seat, a first jack, a first jacking plate, a second mounting seat, a second jack, a second jacking plate and an arc-shaped spring assembly, and the device has a complex structure, complex operation steps and large construction difficulty; for another example, chinese patent CN208219420U discloses a novel highway bridge jacking support, which comprises a bridge pier, a support frame is sleeved on the bridge pier, the two sides of the top of the support frame are fixedly connected with supports, the top of a column support column is fixedly connected with the left and right sides of the bottom of a fixing rod, respectively, a speed reduction motor is arranged in the middle of the front of the fixing rod, the used device is complex, and the connection between components is also complex and difficult to realize.
In conclusion, the existing bridge jacking device has various defects, and the consumption of the support template for full-framing construction is large and the construction period is long; the top surface of the original capping beam is directly utilized, the space is narrow, a jack can not be placed successfully, and the pressure is high, so that the local damage of the bridge is easily caused. The bridge jacking device with convenient construction, safety, economy and strong universality can provide an economic and effective way for replacing the bridge support and jacking the beam body.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a general strutting arrangement of bridge jacking solves the bent cap top surface space local and is short, can't successfully place the problem of jack to and the bottom of bridge jacking device hydraulic jack is little with the area of contact of bridge, and great pressure causes the local destruction problem of bridge.
The technical scheme of the utility model: a general supporting device for jacking a bridge comprises a cover beam, a supporting structure unit, a friction backing plate, bolts and connecting pins, wherein the friction backing plate is parallel to the cover beam and clings to the side surfaces of two sides of the cover beam tightly and is arranged between the supporting structure unit and the cover beam, the supporting structure unit clings to the outer side of the friction backing plate and is fixed on the side surface of the cover beam, the supporting structure unit is formed by mutually welding and combining a top plate, a bottom plate, stiffening ribs and a bottom connecting plate, the bottom plate clings to the outer side surface of the friction backing plate tightly, the top plate is vertical to the bottom plate, the bottom surface of the top plate supports the top surface of the bottom plate, at least 1 stiffening rib is vertically arranged on the outer side of the bottom plate at intervals, the bottom connecting plate is vertical to the bottom plate and is parallel to the top plate, the friction backing plate and the bottom plate are correspondingly provided with at least 1 bolt hole at intervals, the bolts sequentially penetrate through the bolt holes on the bottom plate and the friction backing plate to fixedly connect the supporting structure unit and the cover beam, the upper and lower sides of the plurality of supporting structure units are mutually connected into a whole through connecting pin bolts. The problem of the bent cap top surface space local bustle, the bridge jacking device hydraulic jack's bottom and the area of contact of bridge are little to will cause pressure great, great pressure can cause the destruction of bridge, still can cause the jack to damage because the atress is great, can't place the jack successfully is solved.
The stiffening ribs of the supporting structure unit are vertically connected with the top plate and the bottom plate, and the extending width of the stiffening ribs gradually changes from top to bottom.
The height of each supporting structure unit is 10-80 cm, a plurality of supporting structure units with any height are connected and combined into a supporting structure with any height through connecting pins in an up-down mutual communication mode, and the extending widths of the upper adjacent supporting structure unit and the lower adjacent supporting structure unit at the connecting positions are the same.
The friction backing plate is a rubber plate, and the thickness of the friction backing plate is 2-10 mm.
The top plate, the bottom plate, the stiffening ribs and the bottom connecting plate of the supporting structure unit are made of section steel or steel plates.
The bolts are fixedly connected with the bent cap through embedded bars, and the connecting and supporting structure unit is fixed on the side face of the bent cap.
Compared with the prior art, the beneficial effects of the utility model reside in that:
1) the utility model provides a general strutting arrangement of bridge jacking, when jacking to little load bridge, single bearing structure unit can provide effectual holding power, and the construction is convenient.
2) The utility model provides a pair of general strutting arrangement of bridge jacking, at jacking bridge superstructure in-process, when bridge superstructure's effort is great, in order to undertake the different loads of bridge jacking, can be on a parallel with the bent cap on the bent cap side, lower modular connection arranges 1 above supporting structure unit, the upper and lower combination of a plurality of supporting structure units, it is convenient to connect, supporting structure unit's dead weight is light, the commonality is strong.
3) The support structure units with different height sizes and a plurality of different height sizes are spliced and combined, and any possible supporting force for jacking the bridge is provided.
4) The rubber plate is arranged between the contact surface of the supporting structure unit and the cover beam, so that the friction resistance between the supporting structure unit and the cover beam is increased, and extra measures such as adhesive glue are not needed.
5) The supporting structure unit can be repeatedly used, and cost is saved.
Description of the drawings:
fig. 1 is a schematic structural diagram of the whole bridge jacking universal supporting device (when 3 supporting structural units are arranged on the side surface of a cover beam);
FIG. 2 is a side view of the overall structure of a general supporting device for jacking a bridge (when 3 supporting structure units are arranged on the side surface of a cover beam);
FIG. 3 is a schematic diagram of the overall structure of a general supporting device for jacking a bridge (when 2 supporting structure units are arranged on the side surface of a cover beam);
FIG. 4 is a side view of the overall structure of the universal supporting device for jacking a bridge (when 2 supporting structure units are arranged on the side surface of the cover beam);
FIG. 5 is a schematic diagram of the overall structure of a general supporting device for jacking a bridge (when 1 supporting structure unit is arranged on the side of a cover beam);
FIG. 6 is a side view of the overall structure of the universal supporting device for jacking a bridge (when 1 supporting structure unit is arranged on the side of a cover beam);
fig. 7 is a perspective view of the support structure unit.
In the drawing, 1 is a cover beam, 2 is a support structure unit, 3 is a friction backing plate, 4 is a bolt, 5 is a connecting pin bolt, 201 is a top plate, 202 is a bottom plate, 203 is a stiffening rib and 204 is a bottom connecting plate.
Detailed Description
The invention is further described with reference to the accompanying drawings and the detailed description.
A general supporting device for jacking a bridge is characterized by comprising a cover beam 1, a supporting structure unit 2, friction backing plates 3, bolts 4 and connecting pins 5, wherein the friction backing plates 3 are parallel to the cover beam 1 and tightly attached to the side surfaces of two sides of the cover beam 1, the friction backing plates are arranged between the supporting structure unit 2 and the cover beam 1, the supporting structure unit 2 is tightly attached to the outer side of the friction backing plates 3 and fixed on the side surface of the cover beam 1, the supporting structure unit 2 is formed by mutually welding and combining a top plate 201, a bottom plate 202, stiffening ribs 203 and a bottom connecting plate 204, the bottom plate 202 is tightly attached to the outer side surface of the friction backing plates 3, the top plate 201 is perpendicular to the bottom plate 202, the bottom surface of the top plate (201) is supported on the top surface of the bottom plate 202, at least 1 stiffening rib 203 is vertically arranged on the outer side of the bottom plate 202 at intervals, the bottom connecting plate 204 is perpendicular to the bottom plate 202 and parallel to the top plate 201, at least 1 bolt hole is correspondingly arranged between the friction backing plates 3 and the bottom plate 202 at intervals, bolts 4 sequentially penetrate through bolt holes in the bottom plate 202 and the friction backing plate 3 to fixedly connect the supporting structure units 2 with the cover beam 1, and the supporting structure units 2 are vertically communicated with each other and are spliced into a whole through connecting bolts 5.
The stiffening ribs 203 of the supporting structure unit 2 vertically connect the top plate 201 and the bottom plate 202, and the outward extending width of the stiffening ribs 203 gradually changes from wide at the top to narrow at the bottom.
The height of each supporting structure unit 2 is 10-80 cm, a plurality of supporting structure units 2 with any height are connected and combined into a supporting structure with any height by means of connecting pin bolts 5 in a vertically-communicated mode, and the extending widths of the adjacent supporting structure units 2 at the connecting positions are the same.
The friction backing plate 3 is a rubber plate, and the thickness of the rubber plate is 2-10 mm.
The top plate 201, the bottom plate 202, the stiffening ribs 203 and the bottom connecting plate 204 of the supporting structure unit 2 are made of steel sections or steel plates.
The bolts 4 are fixedly connected with the bent cap 1 through embedded bars, and the connection supporting structure unit 2 is fixed on the side surface of the bent cap 1.
Claims (6)
1. A general supporting device for bridge jacking is characterized by comprising a cover beam (1), a supporting structure unit (2), friction base plates (3), bolts (4) and connecting pins (5), wherein the friction base plates (3) are parallel to the cover beam (1) and cling to the side surfaces of two sides of the cover beam (1), the friction base plates are arranged between the supporting structure unit (2) and the cover beam (1), the supporting structure unit (2) clings to the outer side of the friction base plates (3) and is fixed on the side surface of the cover beam (1), the supporting structure unit (2) is formed by mutually welding and combining a top plate (201), a bottom plate (202), stiffening ribs (203) and a bottom connecting plate (204), the bottom plate (202) clings to the outer side surface of the friction base plates (3), the top plate (201) is perpendicular to the bottom plate (202), the bottom surface of the top plate (201) is supported on the top surface of the bottom plate (202), and at least 1 stiffening rib (203) is vertically arranged, the bottom connecting plate (204) is perpendicular to the bottom plate (202) and is arranged at the bottom of the bottom plate (202) and parallel to the top plate (201), the friction base plate (3) and the bottom plate (202) are correspondingly provided with at least 1 bolt hole at intervals, bolts (4) sequentially penetrate through the bolt holes in the bottom plate (202) and the friction base plate (3) to fixedly connect the supporting structure unit (2) with the cover beam (1), and the plurality of supporting structure units (2) are vertically and mutually connected and spliced into a whole through connecting bolts (5).
2. The universal supporting device for bridge jacking as claimed in claim 1, wherein the stiffening ribs (203) of the supporting structure unit (2) are vertically connected with the top plate (201) and the bottom plate (202), and the outward extending width of the stiffening ribs (203) is gradually changed from top to bottom.
3. The universal supporting device for bridge jacking as claimed in claim 1, wherein the single height of the supporting structure unit (2) is 10-80 cm, a plurality of supporting structure units (2) with any height are connected and combined up and down through the connecting pin (5) to form a supporting structure with any height, and the extending widths of the adjacent supporting structure units (2) at the connecting position are the same.
4. The universal supporting device for bridge jacking as claimed in claim 1, wherein the friction pad (3) is a rubber plate with a thickness of 2-10 mm.
5. The universal supporting device for bridge jacking as claimed in claim 1, wherein the top plate (201), the bottom plate (202), the stiffening ribs (203) and the bottom connecting plate (204) of the supporting structure unit (2) are made of steel sections or plates.
6. The universal supporting device for bridge jacking as claimed in claim 1, wherein the bolts (4) are fixedly connected with the capping beam (1) through embedded bars, and the connecting and supporting structural unit (2) is fixed on the side surface of the capping beam (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021834171.1U CN213740643U (en) | 2020-08-21 | 2020-08-21 | General strutting arrangement of bridge jacking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021834171.1U CN213740643U (en) | 2020-08-21 | 2020-08-21 | General strutting arrangement of bridge jacking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213740643U true CN213740643U (en) | 2021-07-20 |
Family
ID=76842529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021834171.1U Active CN213740643U (en) | 2020-08-21 | 2020-08-21 | General strutting arrangement of bridge jacking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213740643U (en) |
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2020
- 2020-08-21 CN CN202021834171.1U patent/CN213740643U/en active Active
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