CN215160567U - Hydraulic jacking bearing support - Google Patents
Hydraulic jacking bearing support Download PDFInfo
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- CN215160567U CN215160567U CN202120790720.8U CN202120790720U CN215160567U CN 215160567 U CN215160567 U CN 215160567U CN 202120790720 U CN202120790720 U CN 202120790720U CN 215160567 U CN215160567 U CN 215160567U
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- jacking
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- sleeve frame
- vertical rods
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Abstract
The utility model provides a hydraulic pressure jacking bearing support, including 4 pylons, every pylon is connected from top to bottom by a plurality of support segments, and a jacking cover frame is established to every pylon bottom, and the support segment of lower part is located jacking cover frame, establishes hydraulic cylinder on the jacking cover frame, and 4 hydraulic cylinder connect in parallel to an intelligent hydraulic power unit. When the support is installed, the support sections which are connected into a whole through synchronous jacking of the hydraulic oil cylinder are moved into the jacking sleeve frame, and then the support sections are moved into the jacking sleeve frame at each time and connected with the upper section in the jacking sleeve frame, so that synchronous climbing and section adding of the support body are realized. The top bearing beam and the template system are installed and finished when the height of the frame body is the lowest through adding the joints at the bottom, so that the risk of high-altitude operation is reduced; the small-sized equipment such as a simple chain block and a forklift can be used for realizing the joint addition, the investment of large-scale hoisting equipment in the bracket installation process is avoided, and the construction cost can be reduced.
Description
Technical Field
The utility model belongs to the technical field of the support in the bridge construction is set up, concretely relates to adopt bearing support of hydraulic cylinder jacking.
Background
A bearing support bracket needs to be erected in the bridge construction process. Common high and large load-bearing supports mainly comprise full framing scaffolds and large-diameter steel pipe supports. The scaffold can be turned over for a plurality of times, but needs to be erected manually, and is large in workload, time-consuming and labor-consuming; the large-diameter steel pipe support is inconvenient to transfer, the number of times of general transfer is few, manual assistance installation is needed in site operation, a large amount of overhead welding work is accompanied in the installation process, and the safety risk of overhead operation is high.
In order to solve the problems, the structure and the erection method of the existing support are developed towards a modularized and assembled structure, the support is assembled by connecting a plurality of basic sections, the automatic tower crane section adding technology is mature, the erection speed is high, but the tower crane is added from bottom to top in sequence, and finally the support top sand discharging cylinder or the support top steel wedge, the bearing beam, the distribution beam, the template and other bearing structures are erected, so that large-scale hoisting equipment is needed, and the high-altitude operation risk is still high.
SUMMERY OF THE UTILITY MODEL
The utility model aims at setting up the above-mentioned problem that the assembled support exists to the tower crane, provide a hydraulic pressure jacking bearing support, improve the degree of automation of support mounting, reduce construction cost and construction risk.
The utility model provides a pair of hydraulic pressure jacking bearing support, including 4 pylons of laying according to 4 summits of rectangle, the spandrel girder has been set up between per two pylon tops, and every pylon includes a plurality of support segments of connecting from top to bottom, and every segment includes 4 montants that set up according to four summits of rectangle, and 4 montant upper ends are connected with the horizontal pole according to 4 limits of rectangle, pass through bolted connection between the montant upper end of every segment rather than the montant lower end of upper portion segment, its characterized in that: the outer sides of the two vertical rods on one side of each section are welded with lug plates at intervals along the longitudinal direction; the jacking sleeve frame is arranged at the bottom of each tower frame and comprises 4 vertical rods arranged according to 4 vertexes of a rectangle, the lower ends of the 4 vertical rods are supported on a support base, 4 cross beams are welded between the upper ends of the 4 vertical rods according to 4 edges of the rectangle, two horizontal and outwards extending hanging rods are welded at two ends of one cross beam along the direction perpendicular to the cross beam, a jacking oil cylinder is vertically arranged on the other cross beam opposite to the cross beam on which the hanging rods are welded, the lower end of the jacking oil cylinder is connected with the cross beam through a bolt, the upper end of the jacking oil cylinder is connected with a horizontally arranged jacking rod through a pin shaft, and two ends of the jacking rod are respectively provided with a clamping groove; the oil cylinders on the 4 towers are connected in parallel with a hydraulic pump station through oil pipes; the height of the jacking sleeve frame is greater than that of the bracket sections, the lowermost section of each tower frame is positioned in the jacking sleeve frame, and two ear plates on two vertical rods of a section higher than the top of the jacking sleeve frame are respectively inserted into clamping grooves at two ends of a jacking rod on the jacking oil cylinder.
When the bracket is installed, the joint can be added at the bottom, and the bracket top bearing and template system are installed in the low altitude, thereby avoiding the high altitude operation and reducing the safety risk; the feeding section and the jacking of the support body can be realized by adopting small equipment such as a simple chain block, a forklift and the like, the investment of large-scale hoisting equipment in the installation process of the support is avoided, the construction cost is reduced, the purposes of low risk, rapidness and automation of construction are realized, the quick assembly and disassembly are realized, the transition is convenient, the high turnover rate of the support material is ensured, and the standardized construction level is improved.
Drawings
Fig. 1 is a schematic view of the overall structure of the bracket of the present invention;
FIG. 2 is a schematic structural view of a stent segment;
FIG. 3 is a schematic view of the structure of the jacking-up trestle and its fixing on the concrete foundation;
FIG. 4 is a schematic view of the structure of the jacking sleeve frame and the structure of the jacking sleeve frame fixed on the foundation of the steel pipe pile;
FIG. 5 is a schematic view of a jacking sleeve mount and jacking leg segment in position;
fig. 6 is a schematic view of the overall jacking and installing manner of the bracket of the present invention.
Detailed Description
As shown in fig. 1, the hydraulic jacking bearing support comprises 4 towers 1 arranged according to 4 vertexes of a rectangle, a bearing beam 2 is erected between the tops of every two towers, and each tower comprises a plurality of support sections 3 which are connected up and down;
the structure of each support section 3 is shown in fig. 2, and comprises 4 vertical rods 31 arranged at four vertexes of a rectangle, the upper ends of the 4 vertical rods are connected with cross rods 32 according to 4 sides of the rectangle, the upper end of each vertical rod of each section is connected with the lower end of the vertical rod of the section at the upper part thereof through bolts, and the outer sides of the two vertical rods at one side of each section are welded with lug plates 33 at intervals along the longitudinal direction;
the bottom of each tower is provided with a jacking sleeve frame 4, the structure of the jacking sleeve frame 4 is shown in fig. 3 and 4, and comprises 4 vertical rods 41 arranged at 4 vertexes of a rectangle, the lower ends of the 4 vertical rods are supported on a support foundation 5, 4 cross beams 42 are welded between the upper ends of the 4 vertical rods according to 4 edges of the rectangle, two horizontal outwards-extending suspension rods 43 are welded at two ends of one cross beam along the direction vertical to the cross beam, a jacking oil cylinder 6 is vertically arranged on the other cross beam opposite to the cross beam on which the suspension rods are welded, the lower end of the jacking oil cylinder is connected with the cross beam through bolts, the upper end of the jacking oil cylinder is connected with a horizontally-arranged jacking rod 7 through a pin shaft, and two ends of the jacking rod are respectively provided with a clamping groove; the oil cylinders on the 4 towers are connected in parallel with a hydraulic pump station 8 through oil pipes;
the height of the jacking sleeve frame 4 is larger than that of one support section 3, the lowermost section of each tower frame is positioned in the jacking sleeve frame, and two ear plates 33 on two vertical rods of one section higher than the top of the jacking sleeve frame are respectively inserted into clamping grooves at two ends of a jacking rod on a jacking oil cylinder.
According to the structure, when the jacking oil cylinder jacks upwards, the plurality of support sections which are connected into a whole can be jacked upwards.
The utility model discloses during the concrete implementation, can 2 gyro wheels 44 are established respectively to 4 angle both sides in the jacking cover frame 4, and the outside that is located 4 montants of the support segment section in the jacking cover frame pushes up respectively on the gyro wheel of 4 angles in the jacking cover frame, can follow the gyro wheel upwards sliding when the support segment section is upwards pushed up to can keep perpendicularly when guaranteeing to upwards slide.
As shown in fig. 3, as an embodiment, the support foundation 5 may adopt a concrete enlarged foundation under the condition of a rock stratum address, and the lower ends of the 4 vertical rods 41 of the jacking sleeve frame are embedded in the concrete foundation.
As shown in fig. 4, as another embodiment, the support foundation 5 may adopt a steel pipe pile foundation in a region having steel pipe pile construction conditions such as a sand layer, a clay layer, and the like, and includes 4 steel pipe piles 51 driven into the ground to a certain depth, two bottom beams 52 are arranged on the tops of the 4 steel pipe piles in a crisscross manner, and both ends of the bottom of each bottom beam are connected with the tops of the two steel pipe piles through flanges; the lower ends of the 4 vertical rods 41 of the jacking sleeve frame are welded on the two bottom beams 52.
In order to ensure the stability of the high-altitude structure, a parallel connection system 9 can be arranged at a certain height between 4 towers.
The utility model provides an above-mentioned hydraulic pressure bearing support, mounting method when concrete construction carries out according to following step:
(1) and constructing a support foundation at a preset erection position of the support, and fixing the lower end of the vertical rod of the jacking sleeve frame with the support foundation.
The support foundation can adopt different structures and construction modes according to different geological conditions:
as shown in fig. 3, under the geological condition that the earth surface of the support erection area is a hard rock stratum, the support foundation 5 can be a concrete enlarged foundation, and when pouring foundation concrete, the lower ends of the vertical rods 41 of the jacking sleeve frame 4 are embedded into the concrete foundation.
As shown in fig. 4, under the geological condition that the earth surface of the support erection region is a sand layer and a clay layer, the support foundation 5 can be a steel pipe pile foundation, 4 steel pipe piles 51 are driven into the ground during construction, two criss-cross bottom beams 52 are arranged at the tops of the 4 steel pipe piles, the bottoms of the two ends of each bottom beam are connected with the tops of the two steel pipe piles through flanges, and the lower ends of the vertical rods 41 of the jacking sleeve frame 4 are welded with the two bottom beams. The steel pipe pile foundation has the advantages that after construction is completed and the support is dismantled, the steel pipe pile can be pulled out, and the foundation and the support body can be recycled by 100%.
(2) As shown in fig. 5 and 6, 2-3 bracket sections 3 are hoisted into the jacking sleeve frame 4 of each tower frame by a small crane, and are connected up and down by bolts, wherein the bracket section positioned above is higher than the top of the jacking sleeve frame, and one side of each bracket section provided with an ear plate faces to a jacking oil cylinder on the jacking sleeve frame; and installing a sand discharging cylinder or a steel discharging wedge on the top section of each tower, and then erecting upper bearing structures such as a bearing beam 2, a distribution beam, a template and the like on the top of each two towers.
The bearing structure at the top of the support is installed at low altitude, so that the construction quality can be ensured, and the construction risk is reduced.
(3) Connecting the jacking oil cylinders on the 4 jacking sleeve frames in parallel with the hydraulic pump station 8 through oil pipes; and adjusting the height of each jacking oil cylinder, forward rotating a jacking rod 7 on the jacking oil cylinder 6, and inserting two lug plates on the bracket section higher than the top of the jacking sleeve frame into two clamping grooves on the jacking rod.
(4) And controlling the oil cylinders to synchronously lift upwards, and lifting the support sections which are connected into a whole upwards by the height of at least one support section to suspend the section positioned at the lowest part, so that a space capable of accommodating one support section is formed in the lifting sleeve frame.
(5) Hanging a bracket section 3 to be installed on two hanging rods 43 of a jacking sleeve frame through a steel wire rope, then pulling the section to be installed into the jacking sleeve frame by using a chain block, aligning the section to be installed with an upper section, synchronously returning oil by using a jacking oil cylinder to enable the upper section to fall on the section to be installed, and firmly connecting the section to be installed with the upper section through bolts; and then the jacking oil cylinder jacks the sections which are connected into a whole up by the height of at least one section.
(6) And (5) repeating the step repeatedly until the support is jacked and installed to the designed height.
In order to ensure that the support sections can keep a vertical state when ascending, 2 rollers can be respectively arranged on two sides of 4 corners in each jacking sleeve frame, the outer sides of 4 vertical rods of the support sections in the jacking sleeve frames respectively abut against the rollers at the 4 corners in the jacking sleeve frames, when the support sections ascend in the sleeve frames, the vertical rods slide along the pulleys, and the pulleys have limiting and guiding functions.
In order to ensure the stability of the support at high altitude, when the support is installed at a certain height, a parallel connection system can be arranged among 4 towers, and then the support is continuously jacked upwards to install the support. The parallel connection system is also installed at a low position, so that construction is convenient, and high-altitude construction risks are avoided.
After the construction is finished and the supports are disassembled, the hydraulic oil cylinders are controlled to descend synchronously according to the reverse order of the support installation, and one support section is disassembled in the jacking sleeve frame and moved out of the jacking sleeve frame each time.
Claims (5)
1. The utility model provides a hydraulic pressure jacking bearing support, includes 4 towers that lay according to 4 summits of rectangle, has set up the spandrel girder between per two tower tops, and every tower includes a plurality of support segments of connecting from top to bottom, and every segment includes 4 montants that set up according to four summits of rectangle, and 4 montant upper ends are connected with the horizontal pole according to 4 limits of rectangle, pass through bolted connection, its characterized in that between the montant upper end of every segment and the montant lower extreme of its upper portion segment: the outer sides of the two vertical rods on one side of each section are welded with lug plates at intervals along the longitudinal direction; the jacking sleeve frame is arranged at the bottom of each tower frame and comprises 4 vertical rods arranged according to 4 vertexes of a rectangle, the lower ends of the 4 vertical rods are supported on a support base, 4 cross beams are welded between the upper ends of the 4 vertical rods according to 4 edges of the rectangle, two horizontal and outwards extending hanging rods are welded at two ends of one cross beam along the direction perpendicular to the cross beam, a jacking oil cylinder is vertically arranged on the other cross beam opposite to the cross beam on which the hanging rods are welded, the lower end of the jacking oil cylinder is connected with the cross beam through a bolt, the upper end of the jacking oil cylinder is connected with a horizontally arranged jacking rod through a pin shaft, and two ends of the jacking rod are respectively provided with a clamping groove; the oil cylinders on the 4 towers are connected in parallel with a hydraulic pump station through oil pipes; the height of the jacking sleeve frame is greater than that of the bracket sections, the lowermost section of each tower frame is positioned in the jacking sleeve frame, and two ear plates on two vertical rods of a section higher than the top of the jacking sleeve frame are respectively inserted into clamping grooves at two ends of a jacking rod on the jacking oil cylinder.
2. The hydraulic jacking load-bearing support of claim 1, wherein: two sides of 4 corners in the jacking sleeve frame are respectively provided with 2 rollers, and the outer sides of 4 vertical rods of the bracket sections in the jacking sleeve frame are respectively abutted against the rollers at the 4 corners in the jacking sleeve frame.
3. The hydraulic jacking load-bearing support of claim 1, wherein: the support foundation is a concrete enlarged foundation, and the lower ends of 4 vertical rods of the jacking sleeve frame are embedded in the concrete foundation.
4. The hydraulic jacking load-bearing support of claim 1, wherein: the support foundation is a steel pipe pile foundation and comprises 4 steel pipe piles driven into the ground to a certain depth, two bottom beams are arranged at the tops of the 4 steel pipe piles in a cross mode, and two ends of the bottom of each bottom beam are connected with the tops of the two steel pipe piles through flanges; the lower ends of 4 vertical rods of the jacking sleeve frame are welded on the two bottom beams.
5. The hydraulic jacking load-bearing support of claim 1, wherein: a parallel connection system is arranged between the 4 towers at a certain height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120790720.8U CN215160567U (en) | 2021-04-17 | 2021-04-17 | Hydraulic jacking bearing support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120790720.8U CN215160567U (en) | 2021-04-17 | 2021-04-17 | Hydraulic jacking bearing support |
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| CN215160567U true CN215160567U (en) | 2021-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120790720.8U Active CN215160567U (en) | 2021-04-17 | 2021-04-17 | Hydraulic jacking bearing support |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113148893A (en) * | 2021-04-17 | 2021-07-23 | 中交路桥建设有限公司 | Hydraulic jacking load-bearing support and mounting method thereof |
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2021
- 2021-04-17 CN CN202120790720.8U patent/CN215160567U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113148893A (en) * | 2021-04-17 | 2021-07-23 | 中交路桥建设有限公司 | Hydraulic jacking load-bearing support and mounting method thereof |
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