CN211142764U - Steel trestle for temporary construction - Google Patents
Steel trestle for temporary construction Download PDFInfo
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- CN211142764U CN211142764U CN201921818799.XU CN201921818799U CN211142764U CN 211142764 U CN211142764 U CN 211142764U CN 201921818799 U CN201921818799 U CN 201921818799U CN 211142764 U CN211142764 U CN 211142764U
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Abstract
The utility model discloses a steel landing stage is used in interim construction. The steel trestle for temporary construction comprises three rows of steel pipe piles arranged in multiple rows and columns, main cross beams erected on each row of steel pipe piles, single-layer Bailey beams erected on the plurality of main cross beams, transverse distribution beams erected on the single-layer Bailey beams, longitudinal distribution beams erected on the transverse distribution beams, anti-skid steel plates and guard rails, wherein the anti-skid steel plates are arranged on the longitudinal distribution beams; an inclined support is arranged between each row of steel pipe piles, and any two adjacent steel pipe piles are horizontally or longitudinally connected; the main cross beam, the single-layer Bailey beam, the transverse distribution beam, the longitudinal distribution beam and the anti-skid steel plate are connected by spot welding. The utility model discloses a steel trestle for interim construction simple structure, construction convenience are swift, safety and stability nature is high, and the wholeness is good, and large-scale mechanical equipment's the load-bearing is current when not only can satisfying interim construction, also can stably use for a long time after the construction moreover.
Description
Technical Field
The utility model belongs to the technical field of the bridge, especially, relate to a steel landing stage is used in interim construction.
Background
In the municipal construction process, the village roads of the construction site cannot meet the requirements of numerous large-scale mechanical equipment and earth transportation vehicles in engineering construction, so temporary roads need to be built, bridges need to be built when the temporary roads meet river gushes, the traditional bridge building is high in cost on one hand, long in time consumption and large in occupied labor on the other hand, and the requirements of time and cost control required by construction cannot be met.
Some temporary construction steel trestles also exist in the traditional mode, but the structural stability is not enough, the requirement of long-time use after construction cannot be met, or the construction speed is still slow, and the consumed materials are large and expensive.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a steel trestle is used in interim construction, this steel trestle is used in interim construction not only builds fastly, consumptive material is few and can stabilize use, safe firm for a long time.
The utility model discloses a steel landing stage is used in interim construction's technical scheme is:
the temporary construction steel trestle comprises three rows of steel pipe piles arranged in multiple rows and columns, a main cross beam erected on each row of steel pipe piles, a single-layer Bailey beam erected on a plurality of main cross beams, a transverse distribution beam erected on the single-layer Bailey beam, a longitudinal distribution beam erected on the transverse distribution beam, and anti-skid steel plates and guard rails arranged on the longitudinal distribution beam; an inclined support is arranged between each row of steel pipe piles, and any two adjacent steel pipe piles are horizontally or longitudinally connected; the main cross beam, the single-layer Bailey beam, the transverse distribution beam, the longitudinal distribution beam and the anti-skid steel plate are connected by spot welding.
As a further improvement to the technical scheme, the main beam is made of double H600x200 section steel. The double-spliced structure has stronger bearing capacity, saves materials and is convenient to transport compared with a single large-size steel beam.
As a further improvement to the technical scheme, the anti-sliding steel plate comprises a steel plate and a twisted steel bar welded on the steel plate.
As a further improvement to the technical scheme, the thickness of the steel plate is 5mm, and the diameter of the twisted steel bar is 12 mm.
As a further improvement to the technical scheme, the threaded steel bars are welded in an X-shaped cross mode. Can prevent skidding in multiple directions.
As a further improvement to the technical scheme, the transverse or longitudinal parallel connection between the steel pipe piles adopts double-splicing connection. Further improve the structural strength between the steel-pipe piles.
As a further improvement of the technical scheme, the main cross beam, the single-layer Bailey beam, the transverse distribution beam, the longitudinal distribution beam and the anti-skid steel plate are coated with an anti-corrosion coating after the surfaces are subjected to polishing, sand blasting and rust removing treatment. The corrosion resistance is improved, so that the coating can be used for a long time.
As a further improvement to the technical scheme, two ends of the temporary construction steel trestle are provided with the access boards which incline downwards. On the one hand, the ground at the joint of the bridge and the rail can be protected, the unevenness of the ground caused by the vibration of the vehicle at the joint can be prevented, the smoothness is improved, and on the other hand, the boundary of the bridge can be protected from being crushed and deformed.
The utility model discloses a steel landing stage is used in interim construction, compared with the prior art, its beneficial effect lies in:
compared with the prior art, the utility model discloses a steel trestle for interim construction simple structure, construction convenience are swift, safety and stability nature is high, and the wholeness is good, and large-scale mechanical equipment's the load-bearing is current when not only can satisfying interim construction, also can stably use for a long time after the construction moreover.
Drawings
FIG. 1 is a schematic longitudinal section structure of a temporary construction steel trestle of the present invention;
FIG. 2 is a schematic top view of a temporary steel trestle;
FIG. 3 is a schematic cross-sectional structure view of a temporary construction steel trestle;
in the figure: 1. steel pipe piles; 2. parallel connection; 3. bracing; 4. a main cross beam; 5. a single-layer Bailey beam; 6. a transverse distribution beam; 7. a longitudinal distribution beam; 8. a steel plate; 9. twisted steel bars; 10. protecting the fence; 11. a butt strap; m, river bottom elevation.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
The concrete embodiment of the steel trestle for temporary construction of the utility model, as shown in fig. 1 to fig. 3, the steel trestle for temporary construction comprises three rows of steel pipe piles 1 arranged in multiple rows and multiple columns, a main beam 4 erected on each row of steel pipe piles 1, a single-layer bailey beam 5 erected on a plurality of main beams 4, a transverse distribution beam 6 erected on the single-layer bailey beam 5, a longitudinal distribution beam 7 erected on the transverse distribution beam 6, and an anti-skid steel plate and a guard rail 10 arranged on the longitudinal distribution beam; an inclined strut 3 is arranged between every two rows of steel pipe piles 1, and any two adjacent steel pipe piles 1 are horizontally or longitudinally connected in parallel 2; the main cross beam 4, the single-layer Bailey beam 5, the transverse distribution beam 6, the longitudinal distribution beam 7 and the anti-skid steel plate are connected in a spot welding mode.
In this embodiment, the main beam 4 is made of double-spliced H600x200 steel. The double-spliced structure has stronger bearing capacity, saves materials and is convenient to transport compared with a single large-size steel beam. The anti-skid steel plate comprises a steel plate 8 and a twisted steel bar 9 welded on the steel plate 8. The thickness of the steel plate 8 is 5mm, and the diameter of the twisted steel 9 is 12 mm. The twisted steel bars 9 are welded in an X-shaped cross mode. Can prevent skidding in multiple directions. The transverse or longitudinal parallel connection 2 between the steel pipe piles 1 adopts double splicing connection. Further improving the structural strength between the steel pipe piles 1. The main beam 4, the single-layer Bailey beam 5, the transverse distribution beam 6, the longitudinal distribution beam 7 and the anti-skid steel plate are coated with an anti-corrosion coating after the surfaces are polished, sand-blasted and derusted. The corrosion resistance is improved, so that the coating can be used for a long time. The two ends of the temporary construction steel trestle are provided with access boards 11 which incline downwards. On the one hand, the ground at the joint of the bridge and the rail can be protected, the unevenness of the ground caused by the vibration of the vehicle at the joint can be prevented, the smoothness is improved, and on the other hand, the boundary of the bridge can be protected from being crushed and deformed.
The utility model discloses a when steel trestle for interim construction specifically constructed:
the width of the steel trestle bridge is 8m, the railings are arranged on two sides of the steel trestle bridge, and the bridge length can be adjusted according to the actual width of the river during construction.
(1) Superstructure design
The main beam is made of double-spliced H600x200 section steel, a single-layer Bailey sheet is arranged on the main beam, 25b transverse distribution beams are densely distributed on the Bailey sheet at an interval of 50cm, 12.6a longitudinal distribution beams are densely distributed on the Bailey sheet at an interval of 20cm, the bridge deck is made of a steel plate with the thickness of 5mm, and a twisted steel bar with the diameter of 12mm is transversely welded on the bridge deck to serve as an anti-slip strip. The longitudinal beam and the pile top cross beam, the longitudinal beam and the small cross beam and the bridge deck steel plate are connected in a spot welding mode so as to ensure that the longitudinal beam and the bridge deck plate form an integral work.
(2) Substructure design
The steel trestle bridge pier adopts phi 630mm steel pipe piles with the wall thickness of 8mm, the vertical bearing capacity requirement of the design of a single pile is more than 600kN, and double-splicing [28a ] is adopted in parallel connection.
The design of an auxiliary structure:
the two sides of the steel trestle are provided with steel railings, and warning boards are respectively arranged at the starting and ending points of the steel trestle to prohibit social vehicles from entering.
The anticorrosion and coating design of the steel structure:
for the corrosion prevention of the steel structure, the coating is carried out according to the matching system S03 of technical conditions for corrosion prevention coating of the steel structure of the highway bridge (JT/T722 and 2008), and the thickness of the coating is controlled according to 260 mu m.
The welding part and the paint damage part of the steel pipe pile connecting system are repaired by adopting epoxy zinc-rich primer (1 channel, 60um thick) and acrylic acid aliphatic polyurethane finish (2 channels, 70um thick).
Surface treatment before coating:
according to the corrosion characteristics of steel structural members and a coating matching scheme, all steel surfaces need to be subjected to necessary surface pretreatment such as grinding, sand blasting and rust removal before coating, the cleanliness reaches the Sa2.5 grade of GB8923-88 standard or ISO8501-1 standard, and the characters are defined as follows: the rust removal is carried out by very thorough throwing (or sand blasting), no attachments such as grease, dirt, oxide skin, rust spots and the like are visible on the surface of the steel, and only slight point-shaped or strip-shaped traces are left; the 95% steel surface is impacted by the steel shot, and the natural color of the metal is exposed. "the roughness of the entire steel surface is designed to Rz 40-60 μm depending on the thickness of the steel sheet and the total thickness of the coating layer.
The utility model discloses a steel trestle for interim construction simple structure, construction convenience are swift, safety and stability nature is high, and the wholeness is good, and large-scale mechanical equipment's the load-bearing is current when not only can satisfying interim construction, also can stably use for a long time after the construction moreover.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.
Claims (8)
1. Interim steel trestle for construction, its characterized in that: the steel pipe pile structure comprises three rows of steel pipe piles arranged in multiple rows and multiple columns, main cross beams erected on each row of steel pipe piles, single-layer Bailey beams erected on the main cross beams, transverse distribution beams erected on the single-layer Bailey beams, longitudinal distribution beams erected on the transverse distribution beams, and anti-skid steel plates and guard rails arranged on the longitudinal distribution beams; an inclined support is arranged between each row of steel pipe piles, and any two adjacent steel pipe piles are horizontally or longitudinally connected; the main cross beam, the single-layer Bailey beam, the transverse distribution beam, the longitudinal distribution beam and the anti-skid steel plate are connected by spot welding.
2. The temporary construction steel trestle of claim 1, characterized in that: the main beam is made of double-spliced H-shaped steel.
3. The temporary construction steel trestle according to claim 1 or 2, characterized in that: the anti-sliding steel plate comprises a steel plate and a twisted steel bar welded on the steel plate.
4. The temporary construction steel trestle according to claim 3, characterized in that: the thickness of the steel plate is 5mm, and the diameter of the twisted steel bar is 12 mm.
5. The temporary construction steel trestle according to claim 3, characterized in that: the twisted steel bars are welded in an X-shaped cross mode.
6. The temporary construction steel trestle according to claim 1 or 2, characterized in that: the transverse or longitudinal parallel connection between the steel pipe piles adopts double-splicing connection.
7. The temporary construction steel trestle according to claim 1 or 2, characterized in that: the surfaces of the main cross beam, the single-layer Bailey beam, the transverse distribution beam, the longitudinal distribution beam and the anti-skid steel plate are polished, sand-blasted and derusted, and then an anti-corrosion coating is coated.
8. The temporary construction steel trestle according to claim 1 or 2, characterized in that: and two ends of the temporary construction steel trestle are provided with access boards which incline downwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921818799.XU CN211142764U (en) | 2019-10-25 | 2019-10-25 | Steel trestle for temporary construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921818799.XU CN211142764U (en) | 2019-10-25 | 2019-10-25 | Steel trestle for temporary construction |
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| Publication Number | Publication Date |
|---|---|
| CN211142764U true CN211142764U (en) | 2020-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921818799.XU Active CN211142764U (en) | 2019-10-25 | 2019-10-25 | Steel trestle for temporary construction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113529581A (en) * | 2021-07-27 | 2021-10-22 | 中铁十二局集团有限公司 | Construction method of unsupported temporary steel-framed bridge |
-
2019
- 2019-10-25 CN CN201921818799.XU patent/CN211142764U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113529581A (en) * | 2021-07-27 | 2021-10-22 | 中铁十二局集团有限公司 | Construction method of unsupported temporary steel-framed bridge |
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