CN219862341U - Small-span river-crossing trestle - Google Patents
Small-span river-crossing trestle Download PDFInfo
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- CN219862341U CN219862341U CN202320976839.3U CN202320976839U CN219862341U CN 219862341 U CN219862341 U CN 219862341U CN 202320976839 U CN202320976839 U CN 202320976839U CN 219862341 U CN219862341 U CN 219862341U
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- 239000011435 rock Substances 0.000 claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 54
- 239000010959 steel Substances 0.000 claims description 54
- 239000004567 concrete Substances 0.000 claims description 5
- 239000004570 mortar (masonry) Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 27
- 238000000034 method Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000003466 welding Methods 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000002436 steel type Substances 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
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- Bridges Or Land Bridges (AREA)
Abstract
A small-span river-crossing trestle comprises a bridge pier, a bridge deck system and an inclined support; the bridge pier foundation is fixed on the bare rock of the river bed through anchor rods; the bridge deck system comprises a safety protection railing, a main bearing beam, a longitudinal distribution beam and a bridge deck slab, wherein the main bearing beam is arranged along the length direction of a trestle and is erected on two piers on two sides of a river, the longitudinal distribution beam is arranged along the width direction of the trestle and is vertically erected on the main bearing beam, the bridge deck slab is fixedly arranged on the longitudinal distribution beam and the main bearing beam, and the safety protection railing is arranged on the bridge deck slab; and inclined supports are arranged between the two bridge piers and the bridge deck system, transverse parallel joints are arranged on the bridge piers, one ends of the inclined supports are connected with the main bearing cross beams, and the other ends of the inclined supports are connected with the corresponding transverse parallel joints. This landing stage overall stability is good, need not to insert when the construction and beat the steel-pipe pile, adopts small-size general mechanical equipment to accomplish the construction, and construction speed is fast, with low costs, and can steadily use for a long time, and is safe firm.
Description
Technical field:
the utility model belongs to the technical field of water conservancy and hydropower engineering construction, in particular relates to the technical field of a steel trestle for temporary construction built on a small-span bare rock riverbed, and specifically relates to a small-span river-crossing trestle.
The background technology is as follows:
in the water and electricity engineering construction process, trestle is a transportation channel for ensuring the construction of the bridge on water, and is a common building form in infrastructure. In order to meet the requirements of construction mechanical equipment and earthwork transport vehicles, a steel trestle for construction is generally required to be built at a position where a temporary road meets a river, and a traditional bridge is generally built by adopting steel pipe piles and bailey beams, but because the steel pipe piles are difficult to construct, the time consumption is long, the manual occupation amount is large, and the requirements of time and cost control required by construction cannot be met. And for a small-span bare rock riverbed, the steel pipe pile is difficult to construct, the construction cost is high due to uneven rock slope, more labor is consumed, and the construction period is long.
The utility model comprises the following steps:
in order to solve the technical problems, the utility model provides the steel trestle for temporary construction, which is erected on a small-span bare rock riverbed, has good overall stability, can finish construction without inserting steel pipe piles during construction, has high construction speed and low cost, can be stably used for a long time, and is safe and stable.
The utility model adopts the following technical scheme to realize the aim:
the utility model provides a small-span river-crossing trestle which comprises a pier, a bridge deck system and an inclined support, wherein the bridge deck system comprises a bridge deck and a bridge deck; the pier foundation is fixed on the bare rock of the river bed through anchor rods, and a bearing beam embedded part is arranged at the top end of the pier; the bridge deck system comprises safety protection rails, main bearing beams, longitudinal distribution beams and bridge panels, wherein the main bearing beams and the longitudinal distribution beams are respectively provided with a plurality of bridge panels, the main bearing beams are arranged along the length direction of a trestle and are erected on two piers on two sides of a river, the longitudinal distribution beams are arranged along the width direction of the trestle and are vertically erected on the plurality of main bearing beams, the bridge panels are fixedly arranged on the longitudinal distribution beams and the main bearing beams, and the safety protection rails are arranged on the two sides of the bridge panels along the length direction of the trestle; and a plurality of inclined struts are arranged between the two piers and the bridge deck system, a plurality of transverse parallel joints are arranged on the piers, one end of each inclined strut is connected with the main bearing cross beam, and the other end of each inclined strut is connected with the corresponding transverse parallel joint.
The pier is a reinforced rubble concrete pier.
The number of the main bearing beams is 11, the main bearing beams are I25I-steel, and the length of the main bearing beams is 12.0m; the longitudinal distribution beam adopts I20I-steel with the length of 4.0m.
The bridge deck adopts an anti-skid steel plate with the thickness of 10mm, and the length and the width are 12.0 mm and 4.0 mm; the safety protection railing adopts 48mm steel pipe of diameter, and is 1.2m high.
The inclined support adopts I20I-steel, and the length is 3.22m-3.57m; and 6 inclined struts are arranged between the two piers and the main bearing cross beam in parallel, and the 6 inclined struts on each side are vertically arranged in parallel, and the longitudinal parallel connection adopts a steel plate or 50 x 100mm channel steel.
The transverse parallel connection adopts I20I-steel, and the length is 2.0m.
The connection part of the inclined support and the main bearing beam is provided with a connection plate, and the connection plate is vertically and fixedly arranged below the main bearing beam; the transverse parallel connection of each bridge pier is connected through a longitudinal distribution beam, and a connecting plate is fixedly arranged on the longitudinal distribution beam; two ends of the inclined support are fixedly connected with the corresponding connecting plates; the connecting plate adopts a steel plate with the thickness of 10mm, and the size is 4.0 mm in length and 0.5m in width.
The anchor rods are mortar anchor rods, phi 25mm steel bars are adopted, the length is 3.0m, the rock is put into 2m, and the spacing between the anchor rods is 1.0m.
The bearing beam embedded part adopts a steel plate with the length of 1000 mm and the width of 10mm, and the length of the bearing beam embedded part is 110 mm and the width of the bearing beam embedded part is 23 mm.
Compared with the prior art, the utility model has the following beneficial effects:
1. the utility model has convenient installation and short construction period, and the construction period is not more than 1 month.
2. The utility model has less labor consumption, and the main constructors are drillers, welders and auxiliary workers.
3. The utility model has simple structure, high safety and strong field adaptability.
4. The utility model is economical and applicable, has less material consumption, long application time and less maintenance in the later period.
In summary, the mortar anchor rod is inserted into the small-span bare rock riverbed to pour the reinforced concrete bridge pier so as to realize construction of the river-crossing steel trestle, the traditional steel pipe pile construction mode is adjusted to the anchor rod grouting mode, the problems that the steel pipe pile is easy to pour and poor in stability caused by uneven rock gradient in the steel pipe pile insertion construction are solved, the bridge pier is formed by adopting the anchor rod and the concrete pouring on the premise of avoiding the steel pipe pile construction, the construction difficulty is low, the overall stability of the bridge pier and the riverbed bare rock connection is effectively enhanced, and the main bearing beam and the inclined support are of steel sections and bridge decks which adopt patterned steel plate structures.
Description of the drawings:
FIG. 1 is an elevational view of the present utility model;
fig. 2 is a plan view of the present utility model.
Reference numerals in the drawings:
1-safety protection railing, 2-inclined support, 3-longitudinal distribution beam, 4-connecting plate, 5-longitudinal parallel connection, 6-main bearing beam, 7-anchor rod, 8-bridge deck, 9-transverse parallel connection, 10-bearing beam embedded part and 11-bridge pier.
The specific embodiment is as follows:
the present utility model will be further described with reference to the following specific embodiments, which are intended to be illustrative of the principles of the present utility model and not in any way limiting, nor will the same or similar techniques be used in connection with the present utility model beyond the scope of the present utility model.
Referring to fig. 1-2, the utility model provides a small-span river-crossing trestle, which comprises a pier 11, a bridge deck system and an inclined support 2. The bridge pier 11 is a reinforced rubble concrete bridge pier, the foundation of the bridge pier 11 is fixed on bare rock of a riverbed through anchor rods 7, the anchor rods 7 are mortar anchor rods, phi 25mm steel bars are adopted, the length is 3.0m, the rock is put into 2m, and the distance between the anchor rods 7 is 1.0m; the top end of the pier 11 is provided with a bearing beam embedded part 10, the bearing beam embedded part 10 adopts a steel plate of 1000 x 10mm, and the length x 60mm and the width x 23 x 60mm are respectively 110 x 60mm and 23 x 60mm.
The bridge deck system comprises a safety protection railing 1, a main bearing beam 6, a longitudinal distribution beam 3 and a bridge deck 8, wherein the main bearing beam 6 adopts I25I-steel, and the length is 12.0m; the longitudinal distribution beam 3 adopts I20I-steel with the length of 4.0m; the bridge deck 8 adopts an anti-skid steel plate with the thickness of 10mm, and the length is 12.0 mm and the width is 4.0 mm; the safety protection railing 1 adopts a steel pipe with the diameter of 48mm and the height of 1.2 m. Main bearing beam 6, vertical distribution roof beam 3 respectively are provided with the several, and main bearing beam 6 in this embodiment is provided with 11, and main bearing beam 6 sets up along landing stage length direction, erects on two piers 11 of river both sides, and vertical distribution roof beam 3 sets up along landing stage width direction, erects perpendicularly on several main bearing beam 6, and fixed setting bridge deck 8 on vertical distribution roof beam 3, the main bearing beam 6, bridge deck 8 is provided with safety protection railing 1 along landing stage length direction both sides.
6 inclined struts 2 are arranged between the two piers 11 and the main bearing cross beam 6 of the bridge deck system in parallel, a longitudinal parallel connection 5 is vertically arranged between the 6 inclined struts 2 on each side, the inclined struts 2 are I20I-shaped steel, the length is 3.22m-3.57m, and the longitudinal parallel connection 5 is steel plates or 50 x 100mm channel steel. The bridge pier 11 is provided with a plurality of transverse parallel joints 9, one end of the inclined support 2 is connected with the main bearing cross beam 6, the other end of the inclined support 2 is connected with the corresponding transverse parallel joint 9, and the transverse parallel joint 9 adopts I20I-steel with the length of 2.0m. The connection part of the inclined support 2 and the main bearing beam 6 is provided with a connection plate 4, and the connection plate 4 is vertically and fixedly arranged below the main bearing beam 6; the transverse parallel connection 9 of each bridge pier 11 is connected through a longitudinal distribution beam 3, and a connecting plate 4 is fixedly arranged on the longitudinal distribution beam 3; the two ends of the inclined support 2 are fixedly connected with the corresponding connecting plates 4; the connecting plate 4 is a steel plate with the thickness of 10mm, and the size is 4.0 mm in length and 0.5m in width.
The detailed construction method of the trestle comprises the following steps:
1. according to construction requirements, the trestle is arranged at a proper position, parameters of the trestle, such as trestle load, span, bridge pier 11 size, I-steel type, depth of an anchor rod 7 inserted into bare rock of a river bed, length of an inclined support 2 and the like are calculated by combining the size of construction equipment entering a site and load requirements, and then reinforcing steel bar reinforcement of the bridge pier 11 is calculated.
2. And (5) the anchor rod 7 and the bridge pier 11 are constructed by concrete. Firstly, a riverbed of a trestle is cleaned, then an anchor rod 7 is constructed, the anchor rod 7 is put into 2.0m of rock and exposed for 1.0m, a hand drill is adopted for drilling holes and sweeping holes, a grouting machine is adopted for grouting, and the anchor rod 7 is protected and equal in strength. Then, the pier 11 is poured. The bearing beam embedded part 10, the inclined support 2 and the transverse parallel connection 9 are embedded along with the warehouse.
3. And the main bearing beam 6 and the section steel support are welded. After the bridge pier 11 is poured to the designed elevation, the main bearing cross beam 6 is paved, and then the section steel is supported and welded. All the connecting parts between the section steel and the section steel are fully welded on both sides, and the welding process should meet the standard requirements. The section steel welding procedure is carried out according to the main bearing cross beam 6, the longitudinal distribution beam 3 of the bridge deck system, the longitudinal parallel connection 5 of the inclined support 2 and the inclined support 2.
4. The bridge deck 8 of the trestle is paved, and the bridge deck 8 is spot-welded with the top surface of the main bearing cross beam 6.
5. And (5) constructing the safety protection railing 1. According to the standardized construction requirement, the safety guard rail 1 is welded with the main bearing beam 6 section steel of the bridge deck system by adopting phi 48 steel pipes, and red paint is brushed according to the standardized requirement.
Claims (9)
1. A small-span cross river landing stage, characterized by: the trestle comprises a bridge pier (11), a bridge deck system and an inclined support (2); the foundation of the bridge pier (11) is fixed on the bare rock of the river bed through an anchor rod (7), and a bearing cross beam embedded part (10) is arranged at the top end of the bridge pier (11); the bridge deck system comprises a safety protection railing (1), a main bearing beam (6), a longitudinal distribution beam (3) and bridge panels (8), wherein the main bearing beam (6) and the longitudinal distribution beam (3) are respectively provided with a plurality of bridge panels (11) which are arranged and erected on two bridge piers (6) on two sides of a river along the length direction of the trestle, the longitudinal distribution beam (3) is arranged and vertically erected on the plurality of main bearing beams (6) along the width direction of the trestle, the bridge panels (8) are fixedly arranged on the longitudinal distribution beam (3) and the main bearing beam (6), and the safety protection railing (1) is arranged on two sides of the bridge panels (8) along the length direction of the trestle; a plurality of inclined struts (2) are arranged between the two bridge piers (11) and the bridge deck system, a plurality of transverse parallel joints (9) are arranged on the bridge piers (11), one end of each inclined strut (2) is connected with the main bearing cross beam (6), and the other end of each inclined strut is connected with the corresponding transverse parallel joint (9).
2. The small-span river-crossing trestle according to claim 1, characterized in that: the bridge pier (11) is a reinforced rubble concrete bridge pier.
3. The small-span river-crossing trestle according to claim 1, characterized in that: 11 main bearing beams (6) are arranged, the main bearing beams (6) are I25I-steel, and the length is 12.0m; the longitudinal distribution beam (3) adopts I20I-steel, and the length is 4.0m.
4. The small-span river-crossing trestle according to claim 1, characterized in that: the bridge deck (8) adopts an anti-skid steel plate with the thickness of 10mm, and the length is 12.0m and the width is 4.0m; the safety protection railing (1) adopts a steel pipe with the diameter of 48mm and the height of 1.2 m.
5. The small-span river-crossing trestle according to claim 1, characterized in that: the inclined support (2) adopts I20I-steel, and the length is 3.22m-3.57m; 6 inclined struts (2) are arranged between the two piers (11) and the main bearing cross beam (6) in parallel, a longitudinal parallel connection (5) is vertically arranged between the 6 inclined struts (2) on each side, and the longitudinal parallel connection (5) adopts steel plates or 50 x 100mm channel steel.
6. The small-span river-crossing trestle according to claim 1, characterized in that: the transverse parallel connection (9) adopts I20I-steel, and the length is 2.0m.
7. The small-span river-crossing trestle according to claim 1, characterized in that: the connecting plate (4) is arranged at the joint of the inclined support (2) and the main bearing cross beam (6), and the connecting plate (4) is vertically and fixedly arranged below the main bearing cross beam (6); the transverse parallel connection (9) of each bridge pier (11) is connected through a longitudinal distribution beam (3), and a connecting plate (4) is fixedly arranged on the longitudinal distribution beam (3); two ends of the inclined support (2) are fixedly connected with the corresponding connecting plates (4); the connecting plate (4) adopts a steel plate with the thickness of 10mm, and the size length is 4.0 mm and the width is 0.5m.
8. The small-span river-crossing trestle according to claim 1, characterized in that: the anchor rods (7) are mortar anchor rods, phi 25mm steel bars are adopted, the length is 3.0m, the rock entering is 2m, and the distance between the anchor rods (7) is 1.0m.
9. The small-span river-crossing trestle according to claim 1, characterized in that: the bearing beam embedded part (10) adopts a steel plate with the length of 1000 mm to 10mm, and the length of 110 mm to 60mm and the width of 23 mm to 60mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320976839.3U CN219862341U (en) | 2023-04-26 | 2023-04-26 | Small-span river-crossing trestle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320976839.3U CN219862341U (en) | 2023-04-26 | 2023-04-26 | Small-span river-crossing trestle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219862341U true CN219862341U (en) | 2023-10-20 |
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ID=88337907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320976839.3U Active CN219862341U (en) | 2023-04-26 | 2023-04-26 | Small-span river-crossing trestle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219862341U (en) |
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2023
- 2023-04-26 CN CN202320976839.3U patent/CN219862341U/en active Active
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