CN219099821U - Cast-in-situ working platform for outer suspension plate of precast beam bridge deck - Google Patents
Cast-in-situ working platform for outer suspension plate of precast beam bridge deck Download PDFInfo
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- CN219099821U CN219099821U CN202320113866.8U CN202320113866U CN219099821U CN 219099821 U CN219099821 U CN 219099821U CN 202320113866 U CN202320113866 U CN 202320113866U CN 219099821 U CN219099821 U CN 219099821U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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Abstract
A cast-in-situ working platform for a precast beam bridge deck outer suspension plate comprises a cushion block, a bottom die and a plurality of supporting frames; the single support frame comprises a main shaft, fastening bolts, a telescopic inclined rod and a support rod, wherein one end head of the support rod is provided with a through hole matched with the fastening bolts, the other end head of the support rod is provided with a hinged joint, one end head of the support rod, which is provided with the through hole, is arranged below the precast beam main beam, the main shaft penetrates through the reserved hole of the precast beam main beam and the through hole of the support rod head to be anchored on the precast beam main beam through the fastening bolts on the upper side and the lower side of the main shaft, one end of the telescopic inclined rod is connected with the main shaft, and the other end of the telescopic inclined rod is connected with the support rod through the hinged joint; and paving cushion blocks between the support rods and above the support rods, and installing a bottom die of the outer suspension plate above the cushion blocks to form a working platform. The self-anchoring mounting platform is more convenient, efficient and low-cost bridge deck construction auxiliary equipment, is convenient to mount, does not occupy the working space in the middle of the bridge, can realize parallel construction, and is lower in construction cost and reusable.
Description
Technical field:
the utility model belongs to the technical field of building construction, in particular to the technical field of bridge deck construction, and particularly relates to a precast beam bridge deck outer suspension plate cast-in-situ working platform.
The background technology is as follows:
in engineering production and construction processes, simple and conventional construction technology is often limited by site construction conditions or construction period requirements, and taking prefabricated bridge deck outer suspension plate construction as an example, the existing main stream construction method is a full framing method, a prefabricated plate method and a counterweight cantilever method, and various methods have advantages and disadvantages.
The full framing method has the advantages that large hoisting equipment is not needed in construction, the stress is simple, but the full framing method is greatly influenced by site construction conditions and the height of a construction platform. The precast slab method has the advantages of simple stress, advanced prefabrication and field construction efficiency promotion, but higher prefabrication precision and a part of hoisting equipment are needed. The counterweight cantilever method uses the pressure provided by the counterweight weight to resist the gravity of the outer cantilever plate, and has the advantages of small construction space, but the working platform is difficult to move on the bridge deck due to the existence of the counterweight.
Meanwhile, the common problem that the construction efficiency is low is analyzed in all the construction modes, and the main reason for the low efficiency is as follows:
the full framing method requires a great deal of time for scaffold erection and dismantling; the precast slab method requires equipment for hoisting and installing precast slabs, and if the precast slabs are damaged or the reserved holes cannot be aligned with bridge deck steel bars in the process, a great deal of time is required for re-prefabricating or adjusting the reserved holes; the counterweight method occupies a large amount of space in the middle of the bridge due to the existence of the large-weight counterweight blocks, and influences the binding work of reinforcing steel bars in the middle of the bridge deck.
In order to facilitate construction, eliminate the defects and improve the efficiency, the existing construction method needs to be improved and adjusted, so that the new construction method is more suitable for site construction.
The utility model comprises the following steps:
the utility model discloses an installation type expansion working platform designed by utilizing a self-anchoring principle according to the defects of the prior art, which is mainly used for cast-in-situ of a cantilever plate outside a precast beam bridge deck without a full framing erection condition and can also be used for cast-in-situ of cantilever plates of other structures with installation conditions.
The utility model adopts the following technical scheme to realize the aim:
the utility model provides a cast-in-situ working platform for an outer suspension plate of a precast beam bridge deck, which comprises a cushion block, a bottom die and a plurality of supporting frames, wherein the cushion block is arranged on the outer suspension plate; the single support frame comprises a main shaft, fastening bolts, a telescopic inclined rod and a support rod, wherein one end head of the support rod is provided with a through hole matched with the fastening bolts, the other end head of the support rod is provided with a hinged joint, one end head of the support rod, which is provided with the through hole, is arranged below the precast beam main beam, the main shaft penetrates through the reserved hole of the precast beam main beam and the through hole of the support rod head to be anchored on the precast beam main beam through the fastening bolts on the upper side and the lower side of the main shaft, one end of the telescopic inclined rod is connected with the main shaft, and the other end of the telescopic inclined rod is connected with the support rod through the hinged joint; and paving cushion blocks between the support rods of the plurality of support frames and above the support rods, and installing a bottom die of the outer suspension plate above the cushion blocks to form a working platform.
The support rod adopts I-steel, the notch of the I-steel is arranged up and down, one end head of the I-steel is provided with a through hole matched with the fastening bolt, and the other end head is provided with a hinged joint.
The supporting rod adopts channel steel, the notch of the channel steel is downward or upward, one end head of the channel steel is provided with a through hole matched with the fastening bolt, and the other end head is provided with a hinged joint.
Compared with the prior art, the utility model has the following beneficial effects:
1. the self-anchoring installation platform is convenient to install, does not occupy the middle working space of the bridge, can realize parallel construction, has lower construction cost, can be repeatedly used in different design environments, solves the problem that the scaffold full framing is inconvenient to set up on the operation site, and can avoid the problems of large consumption of steel, labor and mechanical cost, high safety risk and long construction period when the landing frame is set up under the high pier bridge.
2. The telescopic inclined rod is arranged, when the support angle of the outer suspension plate needs to be adjusted, the length of the telescopic inclined rod is adjusted, the new angle support requirement of the outer suspension plate support is met, the adjustment is convenient, and the telescopic inclined rod is suitable for cast-in-situ bridge deck cantilevers with different angles and has wide application range.
3. The utility model has the advantages of simple structure, stable structure, safety and reliability, convenient assembly and disassembly operation, high working efficiency and turnover utilization.
Description of the drawings:
FIG. 1 is a front view of the present utility model;
FIG. 2 is a left side view of the present utility model;
fig. 3 is a top view of the present utility model.
Reference numerals in the drawings:
1-main shaft, 2-fastening bolt, 3-reserved hole, 4-telescopic diagonal bar, 5-supporting bar, 6-cushion block and 7-bottom die.
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. 1-3, the utility model provides a precast beam bridge deck outer suspension plate cast-in-situ working platform, which comprises a cushion block 6, a bottom die 7 and a plurality of supporting frames; the single support frame comprises a main shaft 1, a fastening bolt 2, a telescopic inclined rod 4 and a support rod 5. The supporting rod 5 can be made of I-steel, channel steel and the like, when the I-steel is adopted, the notch of the I-steel is arranged up and down, one end head of the I-steel is provided with a through hole matched with the fastening bolt 2, and the other end head is provided with a hinged joint; when the channel steel is adopted, the notch of the channel steel is downward or upward, a through hole matched with the fastening bolt 2 is arranged at one end of the channel steel, and a hinged joint is arranged at the other end of the channel steel; one end of the support rod 5, which is provided with a through hole, is arranged below the main girder of the precast beam. The main shaft 1 passes through the reserved holes 3 of the girder of the precast beam and the through holes at the end heads of the supporting rods 5 and is anchored by the fastening bolts 2 at the upper side and the lower side of the main shaft 1, so that the main shaft 1 and the precast beam are tightly combined, and a precondition is provided for the installation of a subsequent supporting frame. The main shaft 1 is connected to scalable dead lever 4 one end, the other end passes through articulated joint connection bracing piece 5, can adjust the inclination of bracing piece 5 through articulated joint and scalable dead lever 4, extends or withdraws work platform and pour with the cantilever slab that adapts to different cantilever lengths, adapts to different precast beams and bridge deck slab thickness, is suitable for the different installation demands under the design of multiple different girder. Cushion blocks 6 are paved among the support rods 5 of the plurality of support frames and above the support rods 5, a bottom die 7 of the outer suspension plate is arranged above the cushion blocks 6, a working platform is formed, and a stable and balanced construction platform is provided for the outer suspension plate through the joint supporting function of the support rods 5, the cushion blocks 6 and the bottom die 7.
The installation process of the cast-in-situ working platform of the outer suspension plate is as follows: firstly, a plurality of support frames are installed, a main shaft 1 of each support frame passes through a reserved hole 3 of a girder of a precast beam and a through hole corresponding to the end of a support rod 5, the main shaft 1 is anchored on the precast beam by fastening bolts 2 on the upper side and the lower side of the main shaft 1, the main shaft 1 and the support rod 5 are connected by a telescopic rod 4, and the telescopic rod 4 is adjusted to a proper length. After the installation of the support frames is completed, then a cushion block 6 is paved between the support rods 5 and above the support rods 5, the thickness of the cushion block 6 is adjusted to be proper, finally a bottom die 7 of an outer suspension plate is installed above the cushion block 6 to form a working platform, and the working platform is provided with outer suspension plate reinforcing bars, an outer suspension plate side die and outer suspension plate concrete pouring. And after the outer suspension plate concrete has strength, dismantling the outer suspension plate cast-in-situ working platform in a reverse order.
Claims (3)
1. A cast-in-situ working platform for a precast beam bridge deck outer suspension plate is characterized in that: the outer suspension plate cast-in-situ working platform comprises a cushion block (6), a bottom die (7) and a plurality of supporting frames; the single support frame comprises a main shaft (1), fastening bolts (2), a telescopic inclined rod (4) and a support rod (5), wherein a through hole matched with the fastening bolts (2) is formed in one end head of the support rod (5), a hinged joint is arranged in the other end head of the support rod, one end head of the support rod (5) is provided with a through hole, the end head of the through hole is arranged below a precast beam main beam, the main shaft (1) penetrates through a reserved hole (3) of the precast beam main beam and the through hole in the end head of the support rod (5) to be anchored on the precast beam main beam through the fastening bolts (2) on the upper side and the lower side of the main shaft (1), one end of the telescopic inclined rod (4) is connected with the main shaft (1), and the other end of the telescopic inclined rod is connected with the support rod (5) through the hinged joint; cushion blocks (6) are paved between the support rods (5) of the plurality of support frames and above the support rods (5), and a bottom die (7) of an outer suspension plate is installed above the cushion blocks (6) to form a working platform.
2. The precast beam bridge deck external suspension board cast-in-situ working platform according to claim 1, characterized in that: the support rod (5) is made of I-steel, the notch of the I-steel is arranged up and down, one end head of the I-steel is provided with a through hole matched with the fastening bolt (2), and the other end head is provided with a hinged joint.
3. The precast beam bridge deck external suspension board cast-in-situ working platform according to claim 1, characterized in that: the supporting rod (5) adopts a channel steel, the notch of the channel steel is downward or upward, one end head of the channel steel is provided with a through hole matched with the fastening bolt (2), and the other end head is provided with a hinged joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320113866.8U CN219099821U (en) | 2023-01-19 | 2023-01-19 | Cast-in-situ working platform for outer suspension plate of precast beam bridge deck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320113866.8U CN219099821U (en) | 2023-01-19 | 2023-01-19 | Cast-in-situ working platform for outer suspension plate of precast beam bridge deck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219099821U true CN219099821U (en) | 2023-05-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320113866.8U Active CN219099821U (en) | 2023-01-19 | 2023-01-19 | Cast-in-situ working platform for outer suspension plate of precast beam bridge deck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219099821U (en) |
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2023
- 2023-01-19 CN CN202320113866.8U patent/CN219099821U/en active Active
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