CN216339044U - Bridge substructure intersection construction platform system - Google Patents
Bridge substructure intersection construction platform system Download PDFInfo
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- CN216339044U CN216339044U CN202122378448.5U CN202122378448U CN216339044U CN 216339044 U CN216339044 U CN 216339044U CN 202122378448 U CN202122378448 U CN 202122378448U CN 216339044 U CN216339044 U CN 216339044U
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Abstract
The utility model relates to the technical field of methods or equipment specially used for erecting or assembling bridges, and discloses a cross construction platform system for a bridge substructure, which is used for stabilizing bridge columns and facilitating construction of a tie beam; comprises a soil-piling construction table formed by backfilling and compacting earth and stone layer by layer; the soil-piling construction platform is wrapped outside the bridge column, and the highest position of the soil-piling construction platform is close to the upper end of the bridge column; the part cover that the bridge post is located the mound construction platform is equipped with and is used for preventing to dash askew sleeve of preventing of bridge post when the mound construction platform heaps the height, prevents askew sleeve and bridge post clearance fit, and prevents that packing has solid particle in the space between askew sleeve and the bridge post. According to the utility model, the mound construction platform is constructed in a layer-by-layer mound compaction mode to reach the top of the bridge column, and the skew-preventing sleeve is adopted to ensure that the bridge column is not skewed in the layer-by-layer mound process, so that each tie beam can be constructed by taking the mound construction platform as a construction platform when the top of the mound construction platform is close to the bottom of the tie beam, and the construction of the tie beam and the backfilling of earth and stone are mutually promoted.
Description
Technical Field
The utility model relates to the technical field of methods or equipment special for erecting or assembling bridges, in particular to a bridge substructure cross construction platform system.
Background
The construction of the bridge substructure inevitably involves a large amount of overhead work, and the construction of the tie beam is one of the difficulties.
Except for small-scale bridges such as urban overpasses. Typically, bridge legs are often more than ten meters high and numerous, and it is not economical to use a floor scaffold as a construction platform for high tie beams. Generally, the tie beam at the lower part of the bridge pillar is built by using a floor scaffold as a construction platform, and the tie beam at the higher part is constructed by adopting a core rod penetrating method (namely, the construction platform is fixed on the bridge pillar by adopting a core rod penetrating method).
For the bridge on the soft foundation, sometimes, a backfill mode is adopted to construct a high-fill foundation to bond and reinforce the bridge column, and the elevation of some tie beams is lower than the finished surface of the high-fill foundation, so that the problem of cross construction is caused. The construction scene in the application belongs to the soft foundation. The surface soil of the eighteen-ridge mountain foot is mainly a loose fourth-line artificial filling soil layer, and the average annual rainfall reaches 1753.9 mm.
SUMMERY OF THE UTILITY MODEL
The utility model provides a cross construction platform system for a bridge substructure.
The technical problem to be solved is that: the construction of the tie beams in the bridge substructure is difficult and sometimes faces cross construction problems.
In order to solve the technical problems, the utility model adopts the following technical scheme: a cross construction platform system of bridge substructure is used for stabilizing bridge columns and facilitating the construction of tie beams; comprises a soil-piling construction table formed by backfilling and compacting earth and stone layer by layer; the soil-piling construction platform is wrapped outside the bridge column, and the highest position of the soil-piling construction platform is close to the upper end of the bridge column;
the partial cover that the bridge post is located the mound construction platform is equipped with and is used for preventing that the bridge post dashes askew skew sleeve of preventing when mound construction platform heaps the height, prevent skew sleeve and bridge post clearance fit, and prevent filling in the space between skew sleeve and the bridge post and have solid particle and form the inner filling layer.
Further, the skew-preventing sleeve outside is also provided with column periphery soil stabilizing ribs, the column periphery soil stabilizing ribs are arranged into a # -shape around the skew-preventing sleeve and buried in a soil piling construction table, and solid particles are filled in gaps between the column periphery soil stabilizing ribs and the skew-preventing sleeve to form an outer filling layer.
Further, the solid particles in the inner filling layer are spherical ceramsite, and the solid particles in the outer filling layer are broken stone.
Further, the material of the soil piling construction platform is reinforced soil compacted in a layered mode.
Furthermore, the bridge is an on-slope bridge arranged in a direction parallel to the natural side slope, and the soil piling construction platform is an artificial side slope formed by heightening soil piling of the natural side slope.
Further, the artificial slope comprises a slope bottom retaining wall arranged at the bottom of the natural slope along the trend of the primary slope, a base platform arranged between the natural slope and the retaining wall and with the upper surface flush with the top of the slope bottom retaining wall, and upper-layer filling soil piled on the base platform layer by layer; the bridge column is anchored on the base platform through a cast-in-place pile.
Further, the soil piling construction table is an artificial slope for grading slope release.
Furthermore, the top of the side face of each bridge column on the same cross section of the bridge is also provided with a column top construction platform, and the column top construction platform is anchored on the bridge column through a core penetrating rod.
Compared with the prior art, the cross construction platform system for the bridge substructure has the following beneficial effects:
according to the utility model, the mound construction table is built in a layer-by-layer mound compaction mode (namely, the mound construction tables are compacted layer by layer to enable the mound construction tables to be like a multi-layer cake) to reach the top of the bridge column, and the skew-preventing sleeve is adopted to ensure that the bridge column is not skewed in the layer-by-layer mound process, so that each tie beam can be built by taking the mound construction table as a construction platform when the top of the mound construction table is close to the bottom of the tie beam, a plurality of scaffolds are omitted, the construction of the tie beam and the backfill of earth and rockfill are promoted mutually and are not interfered mutually, and the construction period is obviously shortened.
Drawings
FIG. 1 is a schematic view of a mound construction table with a base constructed;
FIG. 2 is a schematic structural view of a backfilling process of a mound construction table;
FIG. 3 is a schematic structural diagram of the utility model after construction;
FIG. 4 is a schematic view of a skew prevention sleeve arrangement;
the method comprises the following steps of 11-slope bottom retaining wall, 12-base table, 13-upper layer filling soil, 2-bridge column, 21-inner filling layer, 22-anti-tilting sleeve, 23-outer filling layer, 24-column periphery soil stabilizing rib, 3-beam tying, 4-column top construction platform and 5-natural side slope.
Detailed Description
As shown in fig. 3, a cross construction platform system for a bridge substructure for stabilizing a bridge column 2 and facilitating construction of a tie beam 3; comprises a soil-piling construction table formed by backfilling and compacting earth and stone layer by layer; the mound construction platform is wrapped outside the bridge column 2, and the highest position of the mound construction platform is close to the upper end of the bridge column 2; of course, other parts of the bridge substructure than the tie beams 3 may also be provided with the earth-piling work platform as a construction platform.
Note that the mound work table here does not need to be a platform as large as the upper and lower ones, and thus the amount of work for the mound is too large and the effect is not necessarily better. The mound construction platform only needs to ensure that the bridge column 2 can be effectively held and wrapped, and the top of the mound construction platform can support the template of the tie beam 3, and the mound construction platform can be in a step shape or a slope shape.
As shown in fig. 1, a portion of the bridge column 2 located in the mound construction platform is sleeved with a skew-prevention sleeve 22 for preventing the bridge column 2 from being skewed when the mound construction platform is high, the skew-prevention sleeve 22 is in clearance fit with the bridge column 2, and a gap between the skew-prevention sleeve 22 and the bridge column 2 is filled with solid particles and forms an inner filling layer 21.
The outer side of the anti-skew sleeve 22 is further provided with a column periphery soil stabilizing rib 24, the column periphery soil stabilizing rib 24 surrounds the anti-skew sleeve 22 and is arranged in a # -shape and is buried in a soil piling construction table, and a gap between the column periphery soil stabilizing rib 24 and the anti-skew sleeve 22 is filled with solid particles to form an outer filling layer 23.
The two filling layers are used for avoiding the impact of earth and stone to be transmitted to the bridge column 2 and simultaneously playing a role in stabilizing the bridge column 2. In this embodiment, the solid particles in the inner filling layer 21 are spherical ceramsite, and the solid particles in the outer filling layer 23 are gravel. The inner filling layer 21 is directly contacted with the bridge column 2 and is positioned in a confined space, so that spherical ceramsite with better buffering effect is filled.
The material of the soil piling construction platform is reinforced soil compacted in layers, namely, earthwork added with geogrids in layers, so as to stabilize soil quality. If necessary, slope protection structures such as anchor rods are required for further reinforcement.
The bridge is an upward-slope bridge arranged in a direction parallel to the direction of the natural side slope 5, and the soil-piling construction platform is an artificial side slope formed by heightening soil piled on the natural side slope 5.
The artificial slope comprises a slope bottom retaining wall 11 arranged at the bottom of the natural slope 5 along the trend of the primary slope, a base platform 12 arranged between the natural slope 5 and the retaining wall and with the upper surface flush with the top of the slope bottom retaining wall 11, and upper-layer filling 13 piled on the base platform 12 layer by layer; the bridge legs 2 are anchored to the foundation 12 by cast-in-place piles.
The slope surface of the artificial slope is provided with a green plant layer for preventing water and soil loss, and an impermeable layer is paved on the slope top flat plate.
The soil piling construction table is an artificial slope for grading slope placement, and a drainage ditch is further arranged on a toe line of each grade.
The top of each side face of each bridge column 2 on the same cross section of the bridge is also provided with a column top construction platform 4, and the column top construction platform 4 is anchored on the bridge column 2 through a core penetrating rod. The column top construction platform 4 is mainly used for construction of a tie beam 3 of a column top and a bridge superstructure, and materials can be transferred by the aid of a soil piling construction platform during construction of the column top construction platform 4.
The utility model relates to a cross construction platform system of a bridge substructure, which comprises the following steps:
the method comprises the following steps: as shown in fig. 1, a slope bottom retaining wall 11 is built at the bottom of a natural side slope 5, then soil is piled to form a base platform 12, and a bridge column 2 and a tie beam 3 at the lowest part are installed on the base platform 12;
step two: as shown in fig. 2, the mound construction table is built by backfilling earth and stones layer by layer, and each time the top of the mound construction table reaches the bottom of one tie beam 3, backfilling is stopped and the tie beam 3 at the top of the mound construction table is built;
step three: as shown in fig. 3, the construction of the mound construction platform is completed, and the column top construction platform 4 is constructed.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (8)
1. A cross construction platform system of a bridge substructure is used for stabilizing a bridge column (2) and facilitating the construction of a tie beam (3); the method is characterized in that: comprises a soil-piling construction table formed by backfilling and compacting earth and stone layer by layer; the soil-piling construction platform is wrapped outside the bridge column (2) and the highest position is close to the upper end of the bridge column (2);
bridge column (2) are located the partial cover of mound construction platform and are equipped with and are used for preventing when mound construction platform heaps the height to the bridge column (2) dash askew sleeve (22) of preventing, askew sleeve (22) and bridge column (2) clearance fit prevent, and prevent filling in the space between askew sleeve (22) and bridge column (2) and have solid particle and form inner filling layer (21).
2. The bridge substructure cross construction platform system of claim 1, wherein: prevent askew sleeve (22) outside and still be provided with post all around steady native muscle (24), post all around steady native muscle (24) set up to the groined type and bury underground in the mound construction platform around preventing askew sleeve (22), it has solid particle and forms outer filling layer (23) to fill in the space between post all around steady native muscle (24) and the askew sleeve (22) of preventing.
3. The bridge substructure cross construction platform system of claim 2, wherein: the solid particles in the inner filling layer (21) are spherical ceramsite, and the solid particles in the outer filling layer (23) are gravel.
4. The bridge substructure cross construction platform system of claim 1, wherein: the material of the soil piling construction platform is reinforced soil compacted in a layered mode.
5. The bridge substructure cross construction platform system of claim 1, wherein: the bridge is an upward-slope bridge arranged in a way that the trend of the bridge is parallel to the trend of the natural side slope (5), and the soil-piling construction platform is an artificial side slope formed by heightening soil-piling of the natural side slope (5).
6. The bridge substructure cross construction platform system of claim 5, wherein: the artificial side slope comprises a slope bottom retaining wall (11) arranged at the bottom of the natural side slope (5) along the trend of the primary side slope, a base platform (12) arranged between the natural side slope (5) and the retaining wall and with the upper surface flush with the top of the slope bottom retaining wall (11), and upper-layer filling (13) piled on the base platform (12) layer by layer; the bridge column (2) is anchored on the base platform (12) through a cast-in-place pile.
7. The bridge substructure cross construction platform system of claim 5, wherein: the soil piling construction table is an artificial slope for grading slope release.
8. The bridge substructure cross construction platform system of claim 1, wherein: and the top of the side surface of each bridge column (2) on the same cross section of the bridge is also provided with a column top construction platform (4), and the column top construction platform (4) is anchored on the bridge column (2) through a core penetrating rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122378448.5U CN216339044U (en) | 2021-09-29 | 2021-09-29 | Bridge substructure intersection construction platform system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122378448.5U CN216339044U (en) | 2021-09-29 | 2021-09-29 | Bridge substructure intersection construction platform system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216339044U true CN216339044U (en) | 2022-04-19 |
Family
ID=81174787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122378448.5U Expired - Fee Related CN216339044U (en) | 2021-09-29 | 2021-09-29 | Bridge substructure intersection construction platform system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216339044U (en) |
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2021
- 2021-09-29 CN CN202122378448.5U patent/CN216339044U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220419 |