CN215210559U - Anti-scouring large-span continuous beam stress support - Google Patents
Anti-scouring large-span continuous beam stress support Download PDFInfo
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- CN215210559U CN215210559U CN202120599211.7U CN202120599211U CN215210559U CN 215210559 U CN215210559 U CN 215210559U CN 202120599211 U CN202120599211 U CN 202120599211U CN 215210559 U CN215210559 U CN 215210559U
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Abstract
The utility model provides an antiscour large-span continuous beam atress support, include a plurality of unit supports along continuous beam length direction distribution, the unit support includes a plurality of pile foundations, and the pile foundation top is equipped with the pile cap, the pre-buried rag bolt in pile foundation upper portion, and the upper and lower end of stand is equipped with ring flange and lower ring flange respectively, and lower ring flange is connected with rag bolt, and the upper ring flange upside is equipped with the crossbeam. The support is stable in structure and high in construction speed.
Description
Technical Field
The utility model belongs to bridge construction field, in particular to antiscour large-span continuous beam atress support.
Background
The construction work of the large-span concrete continuous beam (rigid frame) bridge begins in the last 70 th century in China, and the bridge rapidly becomes the most competitive bridge type with the span of 60-300 m due to good adaptability and economy, and is widely applied to large highway bridges and municipal elevated bridges.
The existing large-span continuous beam bearing foundation is basically a dry land horizontal bar-shaped reinforced concrete foundation and has the defects that: under the natural disasters such as flood, soaking, waterlogging, the horizontal bar reinforced concrete foundation bearing capacity will show to reduce, leads to steel-pipe column bearing support unstability easily, causes the bearing support to take place the potential safety hazard.
Disclosure of Invention
The utility model aims to solve the technical problem that a antiscour large-span continuous beam atress support is provided, stable in structure, construction speed is fast.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: the utility model provides an antiscour large-span continuous beam atress support, includes a plurality of unit supports that distribute along continuous beam length direction, the unit support includes a plurality of pile foundations, and the pile foundation top is equipped with the pile cap, the pre-buried rag bolt in pile foundation upper portion, and the upper and lower end of stand is equipped with ring flange and lower ring flange respectively, and lower ring flange is connected with rag bolt, and the upper ring flange upside is equipped with the crossbeam.
In the preferred scheme, the cross beam is double-spliced I-shaped steel.
In a preferable scheme, a plurality of short inclined supports are arranged between the cross beam and the upper flange plate.
In a preferable scheme, a long inclined support is arranged between the end part of the cross beam and the upright post.
In a preferred scheme, the upright posts are connected through a cross brace.
In the preferred scheme, a positioning connecting plate is arranged between the cross brace and the upright post, and the cross brace is connected with the positioning connecting plate through a bolt.
In a preferred scheme, the cross braces are made of square steel.
In a preferable scheme, the upper flange plate and the upright post and the lower flange plate and the upright post are connected through stiffening plates.
The utility model provides a pair of continuous roof beam atress support of antiscour large-span adopts pile foundation steel pipe column basis, and for conventional horizontal bar reinforced concrete steel pipe column basis, this support can avoid subsiding of supporting structure, and the effectual striking of resisting flood, drift thing and small-size boats and ships is adorned, is torn open simply, and the support can repeatedly have enough to meet the need the utilization, and is with low costs, and construction speed is fast, stable in structure is reliable, advantage that the safe risk is little.
Drawings
The invention will be further explained with reference to the following figures and examples:
fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of the unit bracket of the present invention;
FIG. 3 is a schematic view of the connection of the cross beam to the upper flange;
FIG. 4 is a schematic view of the connection of the lower flange plate to the anchor bolts;
FIG. 5 is a schematic view of the connection of the vertical column and the cross brace;
FIG. 6 is a side view of the connection of the uprights to the cross braces;
in the figure: the continuous beam comprises a continuous beam 1, a pile foundation 2, pile caps 3, foundation bolts 4, stand columns 5, an upper flange plate 6, a lower flange plate 7, a cross beam 8, short inclined supports 9, long inclined supports 10, cross braces 11, a positioning connecting plate 12, bolts 13 and stiffening plates 14.
Detailed Description
As shown in fig. 1-2 and 4, an anti-scouring large-span continuous beam stress support comprises a plurality of unit supports distributed along the length direction of a continuous beam 1, each unit support comprises a plurality of pile foundations 2, pile foundations 2 are provided with pile caps 3 at the tops, foundation bolts 4 are embedded in the upper portions of the pile foundations 2, upper and lower ends of a stand column 5 are provided with an upper flange plate 6 and a lower flange plate 7 respectively, the lower flange plate 7 is connected with the foundation bolts 4, a cross beam 8 is arranged on the upper side of the upper flange plate 6, and the stand column 5 is a steel pipe column.
Preferably, the cross beam 8 is a double-spliced I-shaped steel. The bending strength of the cross beam 8 is ensured.
When the method is used specifically, a rotary excavator with a drill bit of 100cm in diameter is adopted to drill holes into bedrock according to the designed pile position in a riverbed, the holes are cleaned after the designed depth is reached, a pile foundation reinforcement cage is lowered, C20 underwater concrete is poured, the pile foundation 2 is completed, foundation bolts 4 are embedded and pile caps 3 are poured after 7 days; integrally hoisting the upright post 5 by using a crane and connecting the upright post 5 with the foundation bolt 4, correcting the verticality of the upright post 5, completing hoisting of the upright post 5 one by one, cleaning sundries and soil at the top of the pile cap 3 and pouring high-strength self-leveling mortar; and the hoisting beam 8 is installed.
The steel pipe column foundation is adopted, the steel pipe column buttress is prevented from being dismantled in the flood season, the steel pipe column buttress is prolonged to be used, repeated installation and dismantling of the steel pipe column in the flood season are reduced, all parts of the steel pipe column are connected through a large number of screws, the steel pipe column buttress is simple to assemble and disassemble, the support can be repeatedly recycled, the cost is low, the construction speed is high, the structure is stable and reliable, and the safety risk is small.
Preferably, as shown in fig. 3, a plurality of short inclined struts 9 are arranged between the cross beam 8 and the upper flange 6. The short inclined strut 9 is made of channel steel. The end parts of the short inclined supports 9 are connected with the cross beam 8 and the upper flange 6 through welding.
And a long inclined support 10 is arranged between the end part of the cross beam 8 and the upright post 5. The long inclined support 10 is made of I-shaped steel, and the end part of the long inclined support 10 is connected with the cross beam 8 and the upright post 5 through welding.
The stability and the bending strength of the cross beam 8 are improved by arranging the short diagonal braces 9 and the long diagonal braces 10.
Preferably, the uprights 5 are connected by means of a scissor 11. Each row of upright posts 5 are connected into a whole through the cross braces 11 to resist the impact of riverbed scouring, flood, driftage and small ships.
Preferably, as shown in fig. 5 to 6, a positioning connecting plate 12 is arranged between the scissor supports 11 and the upright post 5, and the scissor supports 11 and the positioning connecting plate 12 are connected through bolts 13.
The positioning connecting plate 12 is welded on the upright post 5, the positioning connecting plate 12 is connected with the cross brace 11 through the bolt 13, and the mounting and dismounting are convenient and fast and can be repeatedly used.
In the present embodiment, the scissors 11 are made of square steel.
Preferably, the upper flange 6 and the upright post 5 and the lower flange 7 and the upright post 5 are connected through stiffening plates 14.
The stiffening plate 14 is arranged to facilitate the connection of the upright post 5 with the upper flange 6 and the lower flange 7, so that the connection strength is improved.
The stress bracket is suitable for foundation construction of temporary structural supports such as cast-in-place continuous beam buttresses, steel box beam hoisting buttresses, pushing beam buttresses and the like, and can avoid settlement of a bracket structure, effectively resist impact of flood, driftage and small ships and ensure construction of an upper structure of the bracket in a river season by adopting the anti-scouring large-span continuous beam stress bracket relative to a conventional horizontal bar-shaped reinforced concrete steel pipe column foundation; the support foundation and the upper structure are stable and reliable, and the safety risk is small; the foundation construction is simple and fast, and steel-pipe column and connected system are the design size, can have enough to meet the need the use many times after one shot forming for the construction progress.
Claims (8)
1. The utility model provides an antiscour large-span continuous beam atress support, includes a plurality of unit supports that distribute along continuous roof beam (1) length direction, its characterized in that: the unit support comprises a plurality of pile foundations (2), pile foundations (2) are provided with pile caps (3) at the tops, foundation bolts (4) are embedded in the upper portions of the pile foundations (2), the upper end and the lower end of each stand column (5) are provided with an upper flange plate (6) and a lower flange plate (7) respectively, the lower flange plates (7) are connected with the foundation bolts (4), and the upper side of each upper flange plate (6) is provided with a cross beam (8).
2. The anti-scouring large-span continuous beam stress bracket according to claim 1, characterized in that: the cross beam (8) is made of double-spliced I-shaped steel.
3. The anti-scouring large-span continuous beam stress bracket according to claim 1, characterized in that: and a plurality of short inclined supports (9) are arranged between the cross beam (8) and the upper flange plate (6).
4. The anti-scouring large-span continuous beam stress bracket according to claim 1, characterized in that: and a long inclined support (10) is arranged between the end part of the cross beam (8) and the upright post (5).
5. The anti-scouring large-span continuous beam stress bracket according to claim 1, characterized in that: the upright posts (5) are connected through a cross brace (11).
6. The anti-scouring large-span continuous beam stress bracket according to claim 5, characterized in that: a positioning connecting plate (12) is arranged between the cross brace (11) and the upright post (5), and the cross brace (11) is connected with the positioning connecting plate (12) through a bolt (13).
7. The anti-scouring large-span continuous beam stress bracket according to claim 5, characterized in that: the cross braces (11) are made of square steel.
8. The anti-scouring large-span continuous beam stress bracket according to claim 1, characterized in that: the upper flange (6) and the upright post (5) and the lower flange (7) and the upright post (5) are connected through stiffening plates (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120599211.7U CN215210559U (en) | 2021-03-24 | 2021-03-24 | Anti-scouring large-span continuous beam stress support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120599211.7U CN215210559U (en) | 2021-03-24 | 2021-03-24 | Anti-scouring large-span continuous beam stress support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215210559U true CN215210559U (en) | 2021-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120599211.7U Active CN215210559U (en) | 2021-03-24 | 2021-03-24 | Anti-scouring large-span continuous beam stress support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215210559U (en) |
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2021
- 2021-03-24 CN CN202120599211.7U patent/CN215210559U/en active Active
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