CN213836331U - Connecting device for incremental launching construction of bridge - Google Patents
Connecting device for incremental launching construction of bridge Download PDFInfo
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- CN213836331U CN213836331U CN202022687036.5U CN202022687036U CN213836331U CN 213836331 U CN213836331 U CN 213836331U CN 202022687036 U CN202022687036 U CN 202022687036U CN 213836331 U CN213836331 U CN 213836331U
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- girder
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- 238000010276 construction Methods 0.000 title claims abstract description 27
- 241000826860 Trapezium Species 0.000 claims abstract description 3
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000010008 shearing Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The utility model relates to a connecting device for in bridge top pushes away construction, including girder and nose girder, the girder includes girder roof, girder bottom plate, two girder oblique webs, girder roof and girder bottom plate parallel arrangement, the girder oblique web correspond with the tip fixed connection formation trapezium structure of girder roof and girder bottom plate, the nose girder includes the straight web of nose girder, the one end of the straight web of nose girder extends to in the girder, and with girder fixed connection. The straight web of nose girder includes 2 at least, and the straight web of nose girder is located the width direction of nose girder, and the length that extends to the straight web of nose girder in the girder is greater than 2 meters, makes whole girder and nose girder area of contact increase through above-mentioned connected mode, and the lifting surface area also increases thereupon, further improves the bearing capacity of whole girder and nose girder department, and this kind of connected mode simultaneously, better control girder and nose girder joint quality improve and push away construction security nature.
Description
Technical Field
The utility model belongs to the technical field of the bridge top pushes away equipment, especially, relate to a connecting device for bridge top pushes away in construction.
Background
In the pushing construction of the steel box girder, the front end of the main girder needs to be provided with a guide beam, so that the self weight of the structure during the maximum cantilever is reduced, and the structure is stressed and strides over the upper pier. The webs of the main beam and the guide beam are used as main stressed plates in the pushing stage, the connection joint of the main beam and the guide beam is a weak stressed part, and the connection mode is very important. As shown in fig. 1, the prior art guide beam is designed with the webs generally vertical, and when the main beam box chamber webs are vertical, it is common practice to weld or bolt the webs in alignment. The welded joint of this connection is fragile and is prone to fracture when subjected to excessive pressure. When the cross section of the main beam is a single-box chamber inclined web plate, the connection mode between the vertical web plate of the guide beam and the main beam inclined web plate is generally that an inclined web plate with a certain length is arranged on the guide beam for transition. The connecting mode has the defects that the web plate joint is troublesome to process and manufacture no matter in a welding mode or a bolting mode, the quality of the joint is difficult to control in site construction, and meanwhile, the bearing capacity of the joint is weak.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a connecting device for in bridge top pushes away construction, solve the bridge top that current push away the construction in nose girder and girder directly adopt welding or bolt, processing preparation more loaded down with trivial details, the weak scheduling problem of joint department bearing capacity.
In order to solve the technical problem, the utility model discloses a realize through following technical scheme:
the utility model provides a connecting device for in bridge top pushes away construction, includes girder and nose girder, the girder includes girder roof, girder bottom plate, two girder oblique webs, the girder roof with girder bottom plate parallel arrangement, the girder oblique web correspond with the girder roof with the tip fixed connection of girder bottom plate forms trapezium structure, the nose girder is including leading the straight web of roof beam, the one end of leading the straight web of roof beam extends to in the girder, and with girder fixed connection.
Because the welding seam connects tensile strength weak, bolted joint ability weak point of shearing, consequently the utility model discloses an in the connected mode, in wholly extending into the girder with the nose girder flank to with girder fixed connection. When the pushing construction supporting point is positioned at the connecting position, the integral tensile and shearing resistance of the pushing construction supporting point is obviously superior to that of a web plate with a welded or bolted joint.
Preferably, the main beam further comprises a main beam diaphragm vertically connected between the main beam top plate and the main beam bottom plate, and the main beam diaphragm is fixedly connected with a guide beam straight web plate extending into the main beam.
Preferably, the length of the straight web of the guide beam extending into the main beam is more than 2 meters.
More preferably, the number of the guide beam straight webs is at least 2, and the guide beam straight webs are located in the width direction of the guide beam.
More preferably, the straight web of the guide beam is located at one end of the main beam bottom plate, and the straight web of the guide beam, the main beam top plate and the main beam inclined web form a triangular box chamber.
Preferably, a guide beam upper flange plate and a guide beam lower flange plate are further arranged on the guide beam straight web plate which does not extend into the main beam, and two ends of the guide beam straight web plate are respectively and fixedly connected with the guide beam upper flange plate and the guide beam lower flange plate to form an I-shaped structure.
Preferably, the upper flange plate of the guide beam is fixedly connected with the top plate of the main beam in an aligned manner, and the lower flange plate of the guide beam is fixedly connected with the bottom plate of the main beam in an aligned manner.
Compared with the prior art, the utility model has the advantages of as follows:
1) one end of the straight web plate of the guide beam extends into the main beam and is fixedly connected with the main beam. When the pushing construction supporting point is positioned at the connecting position, the integral tensile capacity, shearing resistance and bearing capacity of the pushing construction supporting point are obviously superior to those of the existing guide beam and main beam which are directly welded or bolted;
2) the transverse partition plate of the main beam is fixedly connected with one end of the guide beam straight web plate, when the length of the superposition of the guide beam straight web plate extending into the main beam and the main beam is more than 2 m, the contact area of the whole main beam and the guide beam straight web plate is increased, the stress area is increased, and the bearing capacity of the whole main beam and the guide beam is further improved;
3) the utility model discloses among the technical scheme, reduced construction process, better control girder and nose girder joint quality improve and push away construction security.
Drawings
Fig. 1 is a longitudinal elevation view of the connection between the main beam and the guide beam in the prior art of the present invention.
Fig. 2 is a vertical elevation view of the connection between the main beam and the guide beam.
Fig. 3 is a partially enlarged view of a portion a in fig. 2 according to the present invention.
Fig. 4 is a cross-sectional view of the connection between the main beam and the guide beam of the present invention.
Fig. 5 is a partial enlarged view of the point B in fig. 4 according to the present invention.
The reference numerals in the drawings mean: 101: a main beam; 102: a main beam diaphragm; 103: the position of the joint; 104: a guide beam; 201: a main beam; 202: a main beam diaphragm; 203: a guide beam straight web; 204: a guide beam; 205: a main beam end line; 206: a main beam inclined web plate; 207: a main beam top plate; 209: a main beam floor; 210: a triangular cabinet; 211: a guide beam side wing; 212: a top flange of the guide beam; 213: and a guide beam lower flange.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are intended to illustrate the present invention and are not intended to limit the scope of the invention.
As shown in fig. 2 to 5, a connecting device for use in bridge incremental launching construction comprises a main beam 201 and a guide beam 204, wherein the main beam 201 comprises a main beam top plate 207, a main beam bottom plate 209 and two main beam inclined webs 206, the main beam top plate 207 and the main beam bottom plate 209 are arranged in parallel, and the main beam inclined webs 206 are fixedly connected with the ends of the main beam top plate 207 and the main beam bottom plate 209 correspondingly to form a trapezoidal structure. The guide beam 204 comprises a guide beam straight web 203, and one end of the guide beam straight web 203 extends into the main beam 201 and is fixedly connected with the main beam 201. One end of the straight web plate of the guide beam extends into the main beam and is fixedly connected with the main beam. When the pushing construction supporting point is positioned at the connecting position, the integral tensile capacity, shearing resistance and bearing capacity of the pushing construction supporting point are obviously superior to those of the existing guide beam and main beam which are directly welded or bolted.
Preferably, as shown in fig. 2 and 3, the main beam 201 further comprises a main beam diaphragm 202 vertically connected between a main beam top plate 207 and a main beam bottom plate 209, and the main beam diaphragm 202 is fixedly connected with a straight web 203 of the guide beam extending into the main beam 201. Further, the connection between the guide beam 204 and the main beam 201 is firmer, and the bearing capacity of the whole joint is improved. The length of the straight web 203 of the guide beam extending into the main beam 201 is greater than 2 meters, the contact area of the whole main beam 201 and the guide beam 204 is increased, the stress area is increased, the bearing capacity of the whole main beam 201 and the guide beam 204 is further improved, and the safety in the pushing construction is improved.
The number of the guide beam straight webs 203 is at least 2, and the guide beam straight webs 203 are located in the width direction of the guide beam 204. According to actual use requirements, a plurality of guide beam straight webs 203 are selected to extend into the main beam 201 and fixedly connected with the main beam, so that the contact area is further increased, the stress area of the connection position is increased, and the bearing capacity of the whole joint is further improved.
As shown in fig. 4, the straight web 203 of the girder is located at one end of the bottom plate 209 of the girder, and the straight web 203 of the girder, the top plate 207 of the girder and the inclined web 206 of the girder form a triangular box chamber 210. At this time, the triangular box chamber 210 is formed to have a stable structure, and the load-bearing capacity is further enhanced.
As shown in fig. 3 and 5, the straight web 203 of the guide beam, which does not extend into the main beam 201, is further provided with an upper flange plate 212 of the guide beam and a lower flange plate 213 of the guide beam, and both ends of the straight web 203 of the guide beam are respectively fixedly connected with the upper flange plate 212 of the guide beam and the lower flange plate 213 of the guide beam to form an i-shaped structure. The upper flange plate 212 of the guide beam is fixedly connected with the top girder plate 207 in an aligned manner, and the lower flange plate 213 of the guide beam is fixedly connected with the bottom girder plate 209 in an aligned manner. Further, the structure is firm, and the bearing capacity is enhanced.
In the above description of the present invention, the fixing connection includes, but is not limited to, welding, and other fixing connection manners in the art may be used.
The foregoing is only a preferred embodiment of the present invention, and is not intended to limit the scope of the invention, which is defined by the following claims, equivalents and modifications.
Claims (7)
1. The utility model provides a connecting device for in bridge top pushes away construction, includes girder (201) and nose girder (204), girder (201) include girder roof (207), girder bottom plate (209), two girder oblique webs (206), girder roof (207) with girder bottom plate (209) parallel arrangement, girder oblique web (206) correspond with girder roof (207) with the tip fixed connection of girder bottom plate (209) forms the trapezium structure, a serial communication port, nose girder (204) are including nose girder straight web (203), the one end of nose girder straight web (203) extends to in girder (201), and with girder (201) fixed connection.
2. The connecting device for bridge jacking construction in claim 1, wherein the main beam (201) further comprises a main beam diaphragm (202) vertically connected between the main beam top plate (207) and the main beam bottom plate (209), and the main beam diaphragm (202) is fixedly connected with a straight guide beam web (203) extending into the main beam (201).
3. The connecting device for bridge jacking construction according to claim 1, wherein the length of the straight web (203) of the guide beam extending into the main beam (201) is more than 2 meters.
4. The connecting device for bridge jacking construction according to any one of claims 1 to 3, wherein the number of the guide beam straight webs (203) is at least 2, and the guide beam straight webs (203) are located in the width direction of the guide beam (204).
5. The connecting device for bridge jacking construction in claim 4, wherein the straight nose plate (203) is located at one end of the main girder bottom plate (209), and the straight nose plate (203), the main girder top plate (207) and the inclined main girder web (206) form a triangular box chamber (210).
6. The connecting device for bridge incremental launching construction as recited in claim 1, wherein the straight web (203) of the guide beam, which does not extend into the main beam (201), is further provided with an upper flange plate (212) of the guide beam and a lower flange plate (213) of the guide beam, and two ends of the straight web (203) of the guide beam are respectively and fixedly connected with the upper flange plate (212) of the guide beam and the lower flange plate (213) of the guide beam to form an i-shaped structure.
7. The connecting device for bridge jacking construction according to claim 6, wherein the upper flange plate (212) of the guide beam is fixedly connected with the top girder plate (207) in an aligned manner, and the lower flange plate (213) of the guide beam is fixedly connected with the bottom girder plate (209) in an aligned manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022687036.5U CN213836331U (en) | 2020-11-19 | 2020-11-19 | Connecting device for incremental launching construction of bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022687036.5U CN213836331U (en) | 2020-11-19 | 2020-11-19 | Connecting device for incremental launching construction of bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213836331U true CN213836331U (en) | 2021-07-30 |
Family
ID=77017762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022687036.5U Active CN213836331U (en) | 2020-11-19 | 2020-11-19 | Connecting device for incremental launching construction of bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213836331U (en) |
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2020
- 2020-11-19 CN CN202022687036.5U patent/CN213836331U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A connecting device for bridge jacking construction Effective date of registration: 20220402 Granted publication date: 20210730 Pledgee: Bank of China Limited Wuhan Qingshan sub branch Pledgor: HEJIAN KATTOR INDUSTRIAL Co.,Ltd. Registration number: Y2022420000095 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20210730 Pledgee: Bank of China Limited Wuhan Qingshan sub branch Pledgor: HEJIAN KATTOR INDUSTRIAL Co.,Ltd. Registration number: Y2022420000095 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A Connection Device Used in Bridge Jacking Construction Granted publication date: 20210730 Pledgee: Bank of China Limited Wuhan Qingshan sub branch Pledgor: HEJIAN KATTOR INDUSTRIAL Co.,Ltd. Registration number: Y2024980013532 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |