CN214423129U - Large longitudinal slope precast concrete bridge floor assembled trestle - Google Patents
Large longitudinal slope precast concrete bridge floor assembled trestle Download PDFInfo
- Publication number
- CN214423129U CN214423129U CN202120278552.4U CN202120278552U CN214423129U CN 214423129 U CN214423129 U CN 214423129U CN 202120278552 U CN202120278552 U CN 202120278552U CN 214423129 U CN214423129 U CN 214423129U
- Authority
- CN
- China
- Prior art keywords
- trestle
- longitudinal slope
- large longitudinal
- bridge deck
- precast concrete
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000011178 precast concrete Substances 0.000 title claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 34
- 239000010959 steel Substances 0.000 claims abstract description 34
- 238000009434 installation Methods 0.000 claims abstract description 6
- 239000011150 reinforced concrete Substances 0.000 claims description 3
- 230000009471 action Effects 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000002344 surface layer Substances 0.000 abstract description 3
- 239000004567 concrete Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 4
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Images
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The utility model discloses a large longitudinal slope precast concrete bridge floor assembled trestle, which is characterized in that; the large longitudinal slope precast concrete bridge deck assembly type trestle comprises a steel pipe, an I-shaped steel main beam, a Bailey beam and an assembly type bridge deck; the Bailey beam is supported at the top of the steel pipe through the I-steel main beam, and the assembled bridge deck is installed at the upper end of the 321-type Bailey beam. The utility model has the advantages of as follows: (1) the problem that the bridge floor is easy to slide under the action of dead weight or automobile braking load of the large longitudinal slope assembled trestle can be effectively solved. (2) The bolts are directly used as shear-resistant structures, so that the installation and the removal are convenient. (3) The prefabricated slab is used as a bridge deck system, the secondary transfer and utilization efficiency is high, the trestle can be used as a roadbed pavement surface layer after being dismantled, and the residual value is high.
Description
Technical Field
The utility model relates to a relevant technical field of landing stage construction, what specifically say is a big longitudinal gradient precast concrete bridge floor assembled landing stage that relates to.
Background
When a trestle is designed, in order to improve the secondary transportation and utilization efficiency of the trestle bridge deck, the bridge deck system is usually designed into a precast concrete slab, but because the bridge deck is difficult to connect with the Bailey beam, the displacement phenomenon of the bridge deck often occurs in the actual use process, and great potential safety hazards are brought to the trestle structure and operating personnel; especially for a large longitudinal slope trestle, the adverse effects are aggravated by the cumulative action of the concrete slab self-weight component force, the automobile self-weight component force and the automobile braking force, and the safety risk is huge.
SUMMERY OF THE UTILITY MODEL
Therefore, in order to solve the above-mentioned deficiency, the utility model provides a large longitudinal slope precast concrete bridge deck assembled trestle herein; the problem of big longitudinal slope assembled landing stage bridge deck easily slip under dead weight or car braking load effect is solved.
The utility model is realized in such a way, a large longitudinal slope precast concrete bridge floor assembled trestle is constructed, which is characterized in that; the large longitudinal slope precast concrete bridge deck assembly type trestle comprises a steel pipe, an I-shaped steel main beam, a Bailey beam and an assembly type bridge deck; the Bailey beam is supported at the top of the steel pipe through the I-steel main beam, and the assembled bridge deck is installed at the upper end of the 321-type Bailey beam.
The large longitudinal slope precast concrete bridge floor fabricated trestle according to the utility model is characterized in that the trestle is a prefabricated trestle with a large longitudinal slope; the steel pipe is phi 820 multiplied by 10 mm; the I-steel girder is a 2I45b I-steel girder; the Bailey beam is 321 type Bailey beam.
The large longitudinal slope precast concrete bridge floor fabricated trestle according to the utility model is characterized in that the trestle is a prefabricated trestle with a large longitudinal slope; the assembled bridge deck is made of reinforced concrete precast slabs, and the size of a single precast slab is 290cm multiplied by 600 cm; angle steel with the angle of 75-5 mm is arranged at the edge of the precast slab, so that the effect of protecting the angle of the precast slab is achieved, and the damage to the angle of the precast slab under the action of external force is prevented.
The large longitudinal slope precast concrete bridge floor fabricated trestle according to the utility model is characterized in that the trestle is a prefabricated trestle with a large longitudinal slope; 4 lifting points are arranged on the precast slab for later lifting installation, the lifting points are sunken in the concrete bridge deck slab, and the lifting points are made of round steel with the diameter of 20 mm.
The large longitudinal slope precast concrete bridge floor fabricated trestle according to the utility model is characterized in that the trestle is a prefabricated trestle with a large longitudinal slope; the precast slab is provided with shear bolts, the shear bolts are determined according to the positions of bolt holes of the Bailey beam, 10.9-grade phi 36 mm-diameter high-strength bolts are adopted as the shear bolts, the pre-tightening force P =470KN is pre-tightened when a single bolt is installed, and the self-weight component force of the concrete slab, the self-weight component force of an automobile and the braking force of the automobile are overcome through the bolts, so that the sliding phenomenon of the concrete slab is prevented when the concrete slab is used.
The utility model has the advantages of as follows:
(1) the problem that the bridge floor is easy to slide under the action of dead weight or automobile braking load of the large longitudinal slope assembled trestle can be effectively solved.
(2) The bolts are directly used as shear-resistant structures, so that the installation and the removal are convenient.
(3) The prefabricated slab is used as a bridge deck system, the secondary transfer and utilization efficiency is high, the trestle can be used as a roadbed pavement surface layer after being dismantled, and the residual value is high.
Drawings
Fig. 1 is a corresponding elevation view of the trestle of the present invention;
FIG. 2 is a side view of the trestle according to the present invention;
FIG. 3 is a plan view of the assembled decking of the present invention;
fig. 4 is a cross-sectional view a-a of fig. 3 in accordance with the present invention;
fig. 5 is a cross-sectional view B-B of fig. 3 according to the present invention.
Wherein: phi 820 x 10mm steel pipe 1, 2I45b I-steel girder 2, 321 type Bailey beam 3, assembled bridge deck 4, angle steel 5 of 75 x 5mm, hoisting point 6, shear bolt 7, phi 20mm round steel 8, stress steel bar 9, Bailey beam upper chord 10 and guard rail 11.
Detailed Description
The present invention will be described in detail with reference to fig. 1 to 5, and the technical solutions in the embodiments of the present invention will be clearly and completely described, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides a large longitudinal slope precast concrete bridge deck assembled trestle through improvement, as shown in figures 1-5, comprising a phi 820 multiplied by 10mm steel pipe 1, a 2I45b I-steel girder 2, a 321 type Bailey beam 3 and an assembled bridge deck 4; the Bailey beam 3 is supported at the top of the steel pipe 1 through an I-steel main beam 2, and the assembled bridge deck 4 is installed at the upper end of the 321-type Bailey beam 3.
The assembled bridge deck 4 adopts reinforced concrete precast slabs, and the size of a single precast slab is 290cm multiplied by 600 cm; angle steel 5 with the angle of 75-5 mm is arranged at the edge of the precast slab, so that the effect of protecting the angle of the precast slab is achieved, and the damage of the angle of the precast slab under the action of external force is prevented; 4 hoisting points 6 are arranged on the precast slabs so as to facilitate later hoisting and installation, the hoisting points are sunken in the concrete bridge deck slab and are made of round steel 8 with the diameter of phi 20 mm; the precast slab is provided with the shear bolts 7, the shear bolts are determined according to the positions of bolt holes of the Bailey beam, the shear bolts are 10.9-grade phi 36 mm-diameter high-strength bolts, the pretightening force P =470KN is achieved when a single bolt is installed, and the self-weight component force of the concrete slab, the self-weight component force of an automobile and the braking force of the automobile are overcome through the bolts, so that the sliding phenomenon of the concrete slab is prevented when the concrete slab is used.
This patent has following advantage and beneficial effect:
(1) the problem that the bridge floor of the large longitudinal slope assembled trestle is easy to slide under the action of dead weight or automobile braking load can be effectively solved;
(2) the bolts are directly used as shear-resistant structures, so that the installation and the removal are convenient.
(3) The prefabricated slab is used as a bridge deck system, the secondary transfer and utilization efficiency is high, the trestle can be used as a roadbed pavement surface layer after being dismantled, and the residual value is high.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. A large longitudinal slope precast concrete bridge deck assembled trestle is characterized in that the trestle comprises a trestle body and a bridge girder; the large longitudinal slope precast concrete bridge deck assembly type trestle comprises a steel pipe (1), an I-shaped steel girder (2), a Bailey beam (3) and an assembly type bridge deck (4); the Bailey beam (3) is supported at the top of the steel pipe (1) through the I-steel main beam (2), and the assembled bridge deck (4) is installed at the upper end of the 321-type Bailey beam (3).
2. The large longitudinal slope precast concrete deck fabricated trestle of claim 1, wherein; the steel pipe (1) is a phi 820 multiplied by 10mm steel pipe; the I-steel girder (2) is a 2I45b I-steel girder; the Bailey beam (3) is a 321 type Bailey beam.
3. The large longitudinal slope precast concrete deck fabricated trestle of claim 1, wherein; the assembled bridge deck (4) adopts reinforced concrete precast slabs, and the size of a single precast slab is 290cm multiplied by 600 cm; angle steel (5) with the angle of 75 multiplied by 5mm is arranged at the edge of the precast slab.
4. The large longitudinal slope precast concrete deck fabricated trestle of claim 1, wherein; 4 lifting points (6) are arranged on the precast slabs so as to facilitate later lifting and installation, and the lifting points are made of round steel (8) with the diameter of 20 mm.
5. The large longitudinal slope precast concrete deck fabricated trestle of claim 1, wherein; the precast slabs are provided with shear bolts (7), and the shear bolts are 10.9-grade phi 36mm diameter high-strength bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120278552.4U CN214423129U (en) | 2021-02-01 | 2021-02-01 | Large longitudinal slope precast concrete bridge floor assembled trestle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120278552.4U CN214423129U (en) | 2021-02-01 | 2021-02-01 | Large longitudinal slope precast concrete bridge floor assembled trestle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214423129U true CN214423129U (en) | 2021-10-19 |
Family
ID=78069924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120278552.4U Active CN214423129U (en) | 2021-02-01 | 2021-02-01 | Large longitudinal slope precast concrete bridge floor assembled trestle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214423129U (en) |
-
2021
- 2021-02-01 CN CN202120278552.4U patent/CN214423129U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103924505B (en) | Use prefabricated steel-concrete combination T beam and the construction method of Wavelike steel webplate | |
| CN101550769B (en) | Movable trestle | |
| JP7429940B2 (en) | Construction method of steel concrete main girder of cable-stayed bridge | |
| CN106087711B (en) | Antinode work beam-steel concrete top plate-external prestressing combines T-shaped simply supported beam | |
| CN211848838U (en) | Device for improving stress of hogging moment area of steel-concrete combined continuous beam | |
| CN113699891A (en) | Processing, manufacturing and construction method of prefabricated small box girder hanging bracket | |
| CN108862081A (en) | A kind of chain block crane boom and the application in the adjusting of beam steel protective layer thickness | |
| CN205604080U (en) | Building construction platform | |
| CN209907211U (en) | Girder steel beam device that falls | |
| CN117166814A (en) | Multi-high-rise reinforced concrete bearing wall self-supporting structure and construction method thereof | |
| CN108999427B (en) | Support structure for moving load during building migration in place and construction method thereof | |
| CN214423129U (en) | Large longitudinal slope precast concrete bridge floor assembled trestle | |
| CN205934687U (en) | Antinode worker roof beam - steel concrete roof - external prestress combination T type simple beam | |
| CN212505899U (en) | Lightweight prestressing trackless construction hanging basket | |
| CN109235235B (en) | Longitudinal connection method for main beams at continuous part of steel-concrete composite bridge deck | |
| CN210288002U (en) | But reuse is construction way temporarily | |
| CN111042004A (en) | Hanging basket track beam traveling method | |
| CN208219415U (en) | A kind of mixed composite beam bridge pre-bending structure of the steel-using preflex beam | |
| CN211645930U (en) | Tunnel inverted arch construction trestle | |
| CN211920627U (en) | Light lifting appliance for dismantling cantilever box girder segment | |
| CN114737567A (en) | Underground closed space middle column cutting method | |
| CN211256620U (en) | Assembled combination case roof beam | |
| CN210597062U (en) | Old bridge T-shaped beam dismantling and transporting system | |
| CN114134828A (en) | Method for quickly dismantling upper structure of truss arch bridge | |
| CN209873560U (en) | Bridge deck continuous connection structure adopting ultra-high performance concrete |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |