CN216640281U - Girder steel shore device of pier stud position for girder box bridge construction - Google Patents
Girder steel shore device of pier stud position for girder box bridge construction Download PDFInfo
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- CN216640281U CN216640281U CN202123011329.2U CN202123011329U CN216640281U CN 216640281 U CN216640281 U CN 216640281U CN 202123011329 U CN202123011329 U CN 202123011329U CN 216640281 U CN216640281 U CN 216640281U
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- wedge
- shaped cushion
- cushion blocks
- screw rod
- girder
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The utility model discloses a steel beam jacking device at a pier column position for beam box bridge construction, which is horizontally placed on the top surface of a pier column hoop, the top of the jacking device is horizontally provided with a steel beam, the jacking device comprises a counter-pull screw rod, a fastening nut and two wedge-shaped cushion blocks with right-angled triangle sections, wherein the inclined side surfaces of the two wedge-shaped cushion blocks are in sliding fit, and the middle of the two wedge-shaped cushion blocks penetrates along the horizontal direction and goes up and down along the vertical direction to be connected with the counter-pull screw rod in a sliding manner; and two ends of the opposite-pulling screw rod are in threaded connection with fastening nuts, and the side walls of the fastening nuts are respectively supported on the vertical side surfaces of the wedge-shaped cushion blocks in a jacking mode. The shoring device adopts the steel plate welding wedge-shaped block as a support pad, so that the construction is simple, the construction efficiency can be greatly improved, and the construction safety is ensured.
Description
Technical Field
The utility model relates to the technical field of bridge construction, in particular to a steel beam jacking device at a pier column position for girder box bridge construction.
Background
When the bent cap is constructed currently, a jack or a sand cylinder is generally adopted at the top of the hoop to support and cushion so as to adjust the elevation of the bottom die of the bent cap. However, the above methods have the following problems in daily use:
a jack: because the top of the jack structure is small (generally circular), the contact surface of the jack structure and a cover beam bottom distribution beam (I-shaped steel) is small, and the stability is poor; in the concrete pouring process, the jack is easy to overturn or damage due to the gradual increase of stress, thereby causing safety quality accidents.
Sand cylinder: the operation is more complicated, because the difference of bearing weight, and the even difference of sand filling volume, when the design elevation differed for less, can adjust many times, and after the construction was accomplished, need earlier not hard up the back with sand section of thick bamboo bottom nut, drew out the interior compaction's of sand section of thick bamboo through the hole again, and it is detachable to go on not hard up the rear with it, leads to the construction step numerous and diverse inefficiency.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides a steel beam jacking device at a pier column position for beam box bridge construction.
A steel beam jacking device for a pier column position for beam box bridge construction is horizontally placed on the top surface of a pier column hoop, a steel beam is horizontally erected at the top of the jacking device, the jacking device comprises two opposite-pulling screw rods, fastening nuts and two wedge-shaped cushion blocks with right-angled triangle sections, the inclined side surfaces of the two wedge-shaped cushion blocks are in sliding fit, and the middle of the two wedge-shaped cushion blocks penetrates in the horizontal direction and is connected with the opposite-pulling screw rods in a lifting and sliding manner in the vertical direction; and two ends of the opposite-pulling screw rod are in threaded connection with fastening nuts, and the side walls of the fastening nuts are respectively supported on the vertical side surfaces of the wedge-shaped cushion blocks in a jacking mode.
Moreover, the middle parts of the wedge-shaped cushion blocks are provided with long holes, the long holes penetrate through the wedge-shaped cushion blocks along the axial direction of the long holes, and the long holes extend along the radial direction of the long holes; the radial extension direction of the long hole is vertical.
And the wedge-shaped cushion block is made of a rectangular steel plate with the thickness of 1cm through welding, and the short diameter of the long hole in the wedge-shaped cushion block is phi 20 mm.
The utility model has the advantages and technical effects that:
according to the steel beam jacking device at the pier column position for beam box bridge construction, the contact surface of the support and the bent cap bottom distribution beam (steel beam) can be increased through the two wedge-shaped cushion blocks which are arranged in the central symmetry mode, the gravity part of the steel beam in the vertical direction can be converted into horizontal extrusion force borne by the fastening nut, and the stability of the steel beam jacking device can be effectively guaranteed. The elevation adjustment accessible is twisted and is moved fastening nut, shortens two fastening nut intervals at split screw both ends and adjusts. The wedge-shaped cushion block is made of steel plates, is simple to process, light in weight, not prone to damage and simple to operate.
Drawings
FIG. 1 is a schematic view of the installation position of the jacking device of the present invention;
FIG. 2 is a schematic perspective view of a wedge-shaped spacer block according to the present invention;
FIG. 3 is a side view of the wedge block of the present invention;
FIG. 4 is a schematic view (partially in section) of the lower support of the jacking device of the present invention;
FIG. 5 is a schematic view (partially in section) of the top bracing apparatus of the present invention in an elevated position;
in the figure: 1-a steel beam; 2-a jacking device; 3-hoop holding; 4-pulling the screw rod oppositely; 5-wedge-shaped cushion blocks; 6-fastening a nut; 7-long hole.
Detailed Description
For a further understanding of the contents, features and effects of the present invention, reference will now be made to the following examples, which are to be considered in conjunction with the accompanying drawings. It should be noted that the present embodiment is illustrative, not restrictive, and the scope of the utility model should not be limited thereby.
A girder steel jacking device for a pier column position for girder box bridge construction is horizontally arranged on the top surface of a pier column hoop 3, a girder steel 1 is horizontally erected on the top of the jacking device, the jacking device 2 comprises two wedge-shaped cushion blocks 5 with right-angled triangle sections, and opposite-pulling screw rods 4 and fastening nuts 6, wherein the inclined side surfaces of the two wedge-shaped cushion blocks are in sliding fit, and the middle of the two wedge-shaped cushion blocks penetrates in the horizontal direction and is connected with the opposite-pulling screw rods in a lifting and sliding manner along the vertical direction; and two ends of the opposite-pulling screw rod are in threaded connection with fastening nuts, and the side walls of the fastening nuts are respectively supported on the vertical side surfaces of the wedge-shaped cushion blocks in a jacking mode.
Moreover, the middle parts of the wedge-shaped cushion blocks are respectively provided with a long hole 7, the long holes penetrate through the wedge-shaped cushion blocks along the axial direction of the long holes, and the long holes extend along the radial direction of the long holes; the radial extension direction of the long hole is vertical.
And the wedge-shaped cushion block is made of a rectangular steel plate with the thickness of 1cm through welding, and the short diameter of the long hole in the wedge-shaped cushion block is phi 20 mm.
To more clearly illustrate the embodiments of the present invention, an example is provided below:
the steel beam jacking device at the pier column position for beam box bridge construction can be erected on the top surface of a hoop with a small area, steel beams on two sides of the bottom of a cover beam are erected on the top of the jacking device, and when the supporting height of the steel beams needs to be adjusted, fastening nuts are screwed in opposite directions only, so that the distance between the two fastening nuts is shortened, as shown in figure 5, at the moment, as long holes extend along the radial direction, a lifting sliding space for opposite-pulling screw rods is reserved in wedge-shaped cushion blocks, and the opposite-pulling screw rods are prevented from being damaged due to shearing force applied to the long holes.
Finally, the utility model adopts mature products and mature technical means in the prior art.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the utility model as defined in the appended claims.
Claims (3)
1. The utility model provides a girder steel shore device that pier stud position is used in roof beam box bridge construction, this shore device level is placed on the top surface of pier stud staple bolt, and the top level of shore device erects girder steel, its characterized in that: the jacking device comprises a counter-pull screw rod, a fastening nut and two wedge-shaped cushion blocks with right-angled triangle sections, wherein the inclined side surfaces of the two wedge-shaped cushion blocks are in sliding fit, and the middle parts of the two wedge-shaped cushion blocks penetrate along the horizontal direction and are connected with the counter-pull screw rod in a lifting sliding manner along the vertical direction; and the two ends of the opposite-pulling screw rod are in threaded connection with fastening nuts, and the side walls of the fastening nuts are respectively supported on the vertical side surfaces of the wedge-shaped cushion blocks in a jacking mode.
2. The steel beam jacking device for the pier column position for the girder box bridge construction according to claim 1, wherein: the middle parts of the wedge-shaped cushion blocks are provided with long holes, the long holes penetrate through the wedge-shaped cushion blocks along the axial direction of the long holes, and the long holes extend along the radial direction of the long holes; the radial extension direction of the long hole is vertical.
3. The steel beam jacking device for the pier column position for the girder box bridge construction according to claim 1, wherein: the wedge-shaped cushion block is formed by welding rectangular steel plates with the thickness of 1cm, and the short diameter of the long hole in the wedge-shaped cushion block is phi 20 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123011329.2U CN216640281U (en) | 2021-12-02 | 2021-12-02 | Girder steel shore device of pier stud position for girder box bridge construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123011329.2U CN216640281U (en) | 2021-12-02 | 2021-12-02 | Girder steel shore device of pier stud position for girder box bridge construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216640281U true CN216640281U (en) | 2022-05-31 |
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ID=81740213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123011329.2U Active CN216640281U (en) | 2021-12-02 | 2021-12-02 | Girder steel shore device of pier stud position for girder box bridge construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216640281U (en) |
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2021
- 2021-12-02 CN CN202123011329.2U patent/CN216640281U/en active Active
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