CN214194169U - Large-span steel truss bridge high bolt construction sliding platform - Google Patents
Large-span steel truss bridge high bolt construction sliding platform Download PDFInfo
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- CN214194169U CN214194169U CN202023181144.1U CN202023181144U CN214194169U CN 214194169 U CN214194169 U CN 214194169U CN 202023181144 U CN202023181144 U CN 202023181144U CN 214194169 U CN214194169 U CN 214194169U
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Abstract
The utility model relates to a bridge construction platform technical field specifically discloses a construction platform that slides is tied to large-span steel truss bridge height, include: the lower bearing type platform body and the travelling mechanism; the walking mechanisms are arranged on two sides of the upper part of the lower bearing type platform body; the lower bearing type platform body is arranged on the steel bridge deck plate beam flange plate through the traveling mechanisms on two sides, and the working surface of the traveling mechanism is located on the upper surface of the steel bridge deck plate beam flange plate. The sliding working platform provided by the utility model is supported on the beam flange plate of the steel bridge deck slab by utilizing the travelling mechanism, and constructors slide on the beam flange plate through the travelling mechanism by virtue of external force, so that the structure is simple, light and easy to control, and great convenience is provided for top punching construction and high-strength bolt construction during installation of the steel bridge deck slab; the lower bearing type structure ensures that the clearance between the platform and the upper bridge deck is high, thereby facilitating the passing and construction of personnel; the whole structure is compact, safe and reliable.
Description
Technical Field
The utility model relates to a bridge construction platform technical field mainly is applied to the steel truss bridge and assembles the construction operations such as erection of steel bridge panel mount and lower part high strength bolt welding, application in the work progress.
Background
At present, high-strength bolt connection is widely applied to the engineering design of each steel structure bridge, and in the prior art, a high-strength bolt construction platform at the lower connection part of a bridge deck adopts a mode of mounting scaffold boards on a bridge deck beam wing plate.
This mode is big to the scaffold board quantity, and scaffold board platform is little apart from its top decking headroom, is unfavorable for constructor current, and high bolt transportation difficulty, scaffold board belong to the part in the work progress, exists the possibility of sliding at any time, and the danger coefficient is big, and apart from ground clearance height below the decking in addition, demolish the difficulty.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a long-span steel truss bridge high bolt construction sliding platform, which is provided with a portable sliding working platform consisting of a lower bearing type platform body, a walking mechanism mounting frame and a walking mechanism, wherein the walking mechanism is supported on a beam flange plate of a steel bridge panel, and constructors can slide on the beam flange plate through the walking mechanism by virtue of external force and can transversely and flexibly move, thereby providing great convenience for top punching construction and high-strength bolt construction during installation of a steel bridge panel block; the lower bearing type structure ensures that the clearance between the platform and the upper bridge deck is high, thereby facilitating the passing and construction of personnel; compact overall structure, safe and reliable's characteristics.
The utility model provides a platform that slides is tied in construction to large-span steel truss bridge height, include: the lower bearing type platform body and the travelling mechanism;
the walking mechanisms are arranged on two sides of the upper part of the lower bearing type platform body; the lower bearing type platform body is arranged on the steel bridge deck plate beam flange plate through the traveling mechanisms on two sides, and the working surface of the traveling mechanism is located on the upper surface of the steel bridge deck plate beam flange plate.
The technical scheme for improving the basic structure is as follows: the limiting guide mechanism and the traveling mechanism mounting frame are arranged on the frame;
the walking mechanisms are arranged on two sides of the upper part of the lower bearing type platform body through the walking mechanism mounting frame;
the limiting guide mechanism is arranged on the traveling mechanism mounting frame, and the working end of the limiting guide mechanism is positioned at the position below the traveling mechanism mounting frame between the lower bearing type platform body and the traveling mechanism;
under the working state, the distance between the working end of the limiting guide mechanism on one side and the flange plate of the steel bridge deck beam on the same side is smaller than the distance between the walking mechanism on one side and the lower bearing type platform body on the same side.
The further improved technical scheme is that the method further comprises the following steps: a temporary fixing mechanism;
the lower bearing type platform body is fixedly connected with the lower part of the steel bridge deck in a detachable mode through the temporary fixing mechanism.
The technical scheme of further improvement is that the method further comprises the following steps: a lower chord high bolt construction hanging rack;
the lower chord high bolt construction hanging frame is arranged on the lower chord of the steel beam.
The further improved technical proposal is that the device also comprises a dismantling mechanism; the removal mechanism includes: a fixed pulley and a rope;
the fixed pulley is arranged on: after the construction is finished, the bottom of the steel bridge deck above the position where the lower bearing type platform body is located;
the rope comprises: first end, second end: the first end is fixedly connected with the lower bearing type platform body; the second end is a pulling end.
The preferable technical solution for the above-mentioned solution is that the lower bearing platform body comprises: the platform comprises a platform bottom plate, a guardrail and a walking mechanism mounting frame;
the platform bottom plate is the rectangle structure, the guardrail includes: a first guardrail and a second guardrail; the first guardrail and the second guardrail are respectively arranged on the working face side of the platform bottom plate in parallel along the two long edges of the platform bottom plate;
the length of running gear mounting bracket is greater than the length of guardrail, include: the first traveling mechanism mounting frame and the second traveling mechanism mounting frame are arranged on the base; the first travelling mechanism mounting frame and the second travelling mechanism mounting frame are respectively arranged at the upper parts of the first guardrail and the second guardrail, two ends of the first travelling mechanism mounting frame are positioned at the outer sides of two ends of the first guardrail in the length direction, and two ends of the second travelling mechanism mounting frame are positioned at the outer sides of two ends of the second guardrail in the length direction;
the traveling mechanisms are arranged at two ends of the first traveling mechanism mounting frame and two ends of the second traveling mechanism mounting frame.
Still further preferably, the platform bottom plate includes: a rectangular frame, a grid type platform bottom plate; the guardrail includes: side rails and connecting rods;
the grid type platform bottom plate is arranged on the rectangular frame;
the four top points of the rectangular frame are provided with the side rails;
the connecting rod is arranged between the two side rails which are positioned on the same side of the platform bottom plate in the length direction.
Still further preferred technical scheme is, spacing guiding mechanism is rod-like structure.
Still further, preferably, the lower end of the rod-shaped structure has an inclined surface structure inclined toward the direction of the lower platform body.
More preferably, the running mechanism is a bearing.
The beneficial effects of the utility model reside in that:
1. the utility model provides a construction platform that slides is tied to large-span steel truss bridge height installs below steel truss bridge steel bridge floor plate, can the lateral flexibility remove, and the construction of dashing when installing for steel bridge deck plate piece is carried out construction and high strength bolt and is provided very big facility.
2. The utility model discloses light in weight only needs this platform between every twice crossbeam, and along with a decking hoisting accessory bridge loading when the decking installation, demolish after waiting to be under construction to accomplish, small in quantity, the structure is light, and ann tears open swiftly.
3. The utility model discloses a running gear supports on the crossbeam pterygoid lamina, and constructor stands and makes the platform remove in order to reach the construction position along the crossbeam with the help of external force in the platform, overall structure is compact, simple.
4. The utility model discloses a bear formula structure down, the clear altitude between platform to upper portion bridge floor board makes things convenient for personnel current and construction.
5. The utility model discloses a be whole frame rack structure, support on the crossbeam bottom plate, the accessible control is held down the interval between formula platform body and the adjacent both sides of crossbeam bottom plate, or carries on spacingly through spacing guiding mechanism to can prevent that the platform high altitude from falling, factor of safety is big.
6. The utility model discloses the structure is light nimble, convenient to use, factor of safety are high, have made things convenient for the construction of processes such as high strength bolt, welding, application of steel bridge face system greatly, in the steel truss bridge construction of rapid development, have important effect to safety, quality, progress.
7. The utility model discloses only need a this platform between every twice crossbeam, along with a decking hoisting accessory bridge loading when the decking installation, demolish after waiting to be under construction to accomplish, small in quantity, the structure is light, and ann tears swift open, but cyclic utilization.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
FIG. 2 is a schematic cross-sectional view taken along line A-A of the structure shown in FIG. 1.
FIG. 3 is a schematic cross-sectional view taken along line B-B of the structure shown in FIG. 1.
Fig. 4 is a schematic structural view of the embodiment of the present invention when installed in a working position.
Fig. 5 is a schematic view of the lower chord high bolt construction hanging rack structure and the position thereof according to an embodiment of the present invention.
The construction method comprises the following steps of 1-a travelling mechanism mounting frame, 2-a travelling mechanism, 3-a limiting guide mechanism, 4-a connecting rod, 5-a platform bottom plate, 6-a side rail, 7-a beam flange plate, 8-a beam web plate, 9-a steel bridge deck plate, 10-a lower chord high bolt construction hanging frame, 11-a railway bridge deck system, 12-a steel beam lower chord and a high bolt construction sliding platform.
Detailed Description
For further explanation, the technical means and effects adopted to achieve the objects of the present invention will be described in detail with reference to the accompanying drawings and preferred embodiments, in order to explain the concrete implementation and working principle of the sliding platform for long-span steel truss bridge high-bolt construction.
As shown in FIG. 1, the embodiment of the utility model provides a high bolt construction slip platform a of high-speed railway large-span steel truss girder bridge includes: the platform comprises a lower-bearing platform body and traveling mechanisms 2, wherein the traveling mechanisms 2 are arranged on two sides of the upper portion of the lower-bearing platform body, and as shown in fig. 4, the lower-bearing platform body is arranged on a steel bridge deck beam flange plate 7 through the traveling mechanisms 2 on two sides.
The utility model can control the space between the two adjacent sides of the lower bearing platform body and the beam bottom plate, so that the space between the lower bearing platform body and the adjacent beam flange plate 7 is smaller than the space between the lower bearing platform body and the same-side walking mechanism 2; or, the limiting guide mechanism 3 is arranged for limiting, so that the platform is prevented from falling from high altitude, and the safety coefficient is high.
In this embodiment, the traveling mechanisms 2 are arranged on two sides of the upper portion of the lower bearing type platform body through the traveling mechanism mounting frame 1, and the high-altitude falling of the platform is prevented by adopting a mode of arranging the limiting guide mechanisms 3 on the traveling mechanism mounting frame 1. Specifically, the working end of the limiting guide mechanism 3 arranged on the traveling mechanism mounting frame 1 is located at the position below the traveling mechanism mounting frame 1 between the lower bearing type platform body and the traveling mechanism 2. Under the working state, the distance between the working end of the unilateral limiting guide mechanism 3 and the flange plate 7 of the steel bridge deck beam on the same side is smaller than the distance between the unilateral traveling mechanism 2 and the lower bearing type platform body on the same side. The limiting guide mechanism 3 adopted in the embodiment is of a rod-shaped structure, and the lower end of the rod-shaped structure is provided with an inclined surface structure inclined towards the direction of the lower bearing platform body.
As can be seen from fig. 1 to 3, the lower platform body used in the present embodiment includes: platform bottom plate 5, guardrail. As shown in fig. 2, the platform floor 5 is a rectangular structure including: rectangular frame, grid formula footboard. The guardrail includes: a first guardrail and a second guardrail; the first guardrail and the second guardrail are respectively arranged on the working face side of the platform bottom plate 5 in parallel along two long edges of the platform bottom plate 5. First guardrail, second guardrail all include: a side rail 6 and a connecting rod 4. Adopt small-size angle steel, can make rectangular frame and boundary rail 6 with ^ 50mm 5mm and phi 16mm round steel, adopt reinforcing bar preparation connecting rod 4, with the grid footboard welding on rectangular frame, the equal perpendicular welding boundary rail 6 in four apex of rectangular frame sets up connecting rod 4 between two boundary rails 6 that lie in platform bottom plate 5 with one side length direction.
1 length of running gear mounting bracket is greater than the length of guardrail, includes: the first traveling mechanism mounting frame and the second traveling mechanism mounting frame. First running gear mounting bracket, second running gear mounting bracket set up respectively in first guardrail, second guardrail upper portion, and the both ends of first running gear mounting bracket are located the first guardrail both ends outside, and the both ends of second running gear mounting bracket are located the second guardrail both ends outside, and the lower formula platform body that holds that has set up running gear mounting bracket 1 is rectangle and hangs a rail formula structure.
The traveling mechanisms 2 are arranged at two ends of the first traveling mechanism mounting frame and two ends of the second traveling mechanism mounting frame. The running gear 2 used in this embodiment is a bearing.
For preventing the utility model discloses shift at the handling in-process, hold formula platform body and steel bridge deck plate lower part under and be connected through the removable mode of interim fixed establishment.
In order to facilitate the access of the constructors to the platform, the lower chord high bolt construction hanging rack 10 is arranged on the lower chord 12 of the steel beam and used as a passage to access the platform, as shown in fig. 5, in the embodiment, the lower chord high bolt construction hanging rack 10 is specifically arranged on the outer side of the lower chord 12 of the steel beam.
After the construction is completed, the platform is dismantled, after the construction is completed, a fixed pulley is arranged at the bottom of the steel bridge deck 9 above the position of the lower bearing type platform body, and a rope for drawing the platform is arranged on the fixed pulley. One end of the rope is fixedly connected with the lower bearing type platform body, the other end of the rope is a traction end, and when the platform needs to be disassembled, ground workers can disassemble the platform through the traction end of the rope for cyclic utilization.
The utility model also provides a method that adopts above-mentioned high-speed railway large-span steel truss bridge high bolt construction slide platform to carry out construction, including following step:
s1, referring to a picture 4, before assembling and erecting a formal hoisting of a steel bridge deck 9, firstly hoisting the steel bridge deck 9 to a height of about 1m from the ground, installing a high-bolt construction sliding platform a in the embodiment between beams at the lower part of the steel bridge deck 9, and temporarily fixing the platform a and the steel bridge deck 9 by using a rope or other temporary fixing mechanisms through bolt holes so as to prevent sliding and falling in the hoisting process; the punching nails used for installing the steel bridge deck plate 9 are stored through the lower bearing type platform body of the platform a, so that the punching nails can be hoisted to the upper bridge along with the steel bridge deck plate 9.
S2, the high-bolt construction sliding platform a is hoisted to the upper bridge along with the steel bridge deck 9, and one high-bolt construction sliding platform a is installed between every two cross beams.
S3, referring to a figure 5, after the steel bridge deck 9 is hoisted to an installation position, constructors enter the platform a from the top of the steel bridge deck 9 through a lower chord high bolt construction hanging rack 10 on the side surface to perform top punching construction, and the steel bridge deck 9 is connected with a main truss through punching nails to complete the assembly and erection of the steel bridge deck 9;
and S4, unfastening the temporary fixing mechanism of the high bolt construction sliding platform a to enable the temporary fixing mechanism to freely slide.
S5, as shown in a figure 5, a high-strength bolt constructor transports a high-strength bolt, a fixed-torque electric wrench and constructors to corresponding construction positions through a high-bolt construction sliding platform a for construction operation, and then transports withdrawn punching nails to a bridge deck slab through the platform for centralized collection; a steel bridge deck welding person pastes a ceramic liner at the bottom of the steel bridge deck through the platform, and a welding seam detection person carries out X-ray detection on a cross joint of a welding seam of the bridge deck through the platform; after the construction of the high-strength bolt and the welding line is finished, a painting worker polishes and paints the bolt joint surface and the welding line part through the platform.
S6, after the construction of all the procedures is completed, a fixed pulley is installed on the upper portion of the high-bolt construction sliding platform a and the bottom of the steel bridge deck 9, one end of a rope is fastened on the high-bolt construction sliding platform a, and an aboveground person detaches the high-bolt construction sliding platform a through pulling the other end of the rope for recycling.
The utility model discloses the structure is light nimble, convenient to use, factor of safety are high, have made things convenient for the construction of processes such as high strength bolt, welding, application of steel bridge face system greatly, in the steel truss bridge construction of rapid development, have important effect to safety, quality, progress.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the examples, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a platform that slides is tied in construction of long-span steel truss bridge height which characterized in that includes: the lower bearing type platform body and the travelling mechanism;
the walking mechanisms are arranged on two sides of the upper part of the lower bearing type platform body; the lower bearing type platform body is arranged on the steel bridge deck plate beam flange plate through the traveling mechanisms on two sides, and the working surface of the traveling mechanism is located on the upper surface of the steel bridge deck plate beam flange plate.
2. The long-span steel truss bridge high bolt construction sliding platform of claim 1, further comprising: the limiting guide mechanism and the traveling mechanism mounting frame are arranged on the frame;
the walking mechanisms are arranged on two sides of the upper part of the lower bearing type platform body through the walking mechanism mounting frame;
the limiting guide mechanism is arranged on the traveling mechanism mounting frame, and the working end of the limiting guide mechanism is positioned at the position below the traveling mechanism mounting frame between the lower bearing type platform body and the traveling mechanism;
under the working state, the distance between the working end of the limiting guide mechanism on one side and the flange plate of the steel bridge deck beam on the same side is smaller than the distance between the walking mechanism on one side and the lower bearing type platform body on the same side.
3. The long-span steel truss bridge high bolt construction sliding platform of claim 2, further comprising: a temporary fixing mechanism;
the lower bearing type platform body is fixedly connected with the lower part of the steel bridge deck in a detachable mode through the temporary fixing mechanism.
4. The long-span steel truss bridge high bolt construction sliding platform of claim 3, further comprising: a lower chord high bolt construction hanging rack;
the lower chord high bolt construction hanging frame is arranged on the lower chord of the steel beam.
5. The long-span steel truss bridge high bolt construction sliding platform of claim 4, further comprising a dismantling mechanism; the removal mechanism includes: a fixed pulley and a rope;
the fixed pulley is arranged on: after the construction is finished, the bottom of the steel bridge deck above the position where the lower bearing type platform body is located;
the rope comprises: first end, second end: the first end is fixedly connected with the lower bearing type platform body; the second end is a pulling end.
6. The long-span steel truss bridge high bolt construction sliding platform of claim 5, wherein the lower deck platform body comprises: the platform comprises a platform bottom plate, a guardrail and a walking mechanism mounting frame;
the platform bottom plate is the rectangle structure, the guardrail includes: a first guardrail and a second guardrail; the first guardrail and the second guardrail are respectively arranged on the working face side of the platform bottom plate in parallel along the two long edges of the platform bottom plate;
the length of running gear mounting bracket is greater than the length of guardrail, include: the first traveling mechanism mounting frame and the second traveling mechanism mounting frame are arranged on the base; the first travelling mechanism mounting frame and the second travelling mechanism mounting frame are respectively arranged at the upper parts of the first guardrail and the second guardrail, two ends of the first travelling mechanism mounting frame are positioned at the outer sides of two ends of the first guardrail in the length direction, and two ends of the second travelling mechanism mounting frame are positioned at the outer sides of two ends of the second guardrail in the length direction;
the traveling mechanisms are arranged at two ends of the first traveling mechanism mounting frame and two ends of the second traveling mechanism mounting frame.
7. The long-span steel truss bridge high bolt construction sliding platform of claim 6, wherein the platform bottom plate comprises: a rectangular frame, a grid type platform bottom plate; the guardrail includes: side rails and connecting rods;
the grid type platform bottom plate is arranged on the rectangular frame;
the four top points of the rectangular frame are provided with the side rails;
the connecting rod is arranged between the two side rails which are positioned on the same side of the platform bottom plate in the length direction.
8. The long-span steel truss bridge high bolt construction sliding platform of claim 7, wherein the limiting and guiding mechanism is of a rod-shaped structure.
9. The long-span steel truss bridge high bolt construction sliding platform of claim 8, wherein the lower end of the rod-shaped structure is provided with a slope structure inclined towards the direction of the through-type platform body.
10. The long-span steel truss bridge high bolt construction sliding platform of claim 9, wherein the traveling mechanism is a bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023181144.1U CN214194169U (en) | 2020-12-25 | 2020-12-25 | Large-span steel truss bridge high bolt construction sliding platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023181144.1U CN214194169U (en) | 2020-12-25 | 2020-12-25 | Large-span steel truss bridge high bolt construction sliding platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214194169U true CN214194169U (en) | 2021-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023181144.1U Active CN214194169U (en) | 2020-12-25 | 2020-12-25 | Large-span steel truss bridge high bolt construction sliding platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214194169U (en) |
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2020
- 2020-12-25 CN CN202023181144.1U patent/CN214194169U/en active Active
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