CN109849157B - Bottom die pedestal for prefabricating beam lifting hole of beam pedestal and using method of bottom die pedestal - Google Patents
Bottom die pedestal for prefabricating beam lifting hole of beam pedestal and using method of bottom die pedestal Download PDFInfo
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- CN109849157B CN109849157B CN201811481141.4A CN201811481141A CN109849157B CN 109849157 B CN109849157 B CN 109849157B CN 201811481141 A CN201811481141 A CN 201811481141A CN 109849157 B CN109849157 B CN 109849157B
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Abstract
The invention discloses a bottom die pedestal for precast beam pedestal beam lifting holes, which relates to the field of precast beam pedestals and comprises a bottom die bent frame, a transferring structure and a supporting and adjusting mechanism, wherein the bottom die bent frame is matched with the beam lifting holes in shape, the transferring structure comprises a plurality of rollers arranged below the bottom die bent frame and a track for the rollers to slide, the supporting and adjusting mechanism comprises a plurality of supporting beams fixed below the bottom die bent frame and a plurality of supporting brackets fixed below the supporting beams, the bottom die bent frame is used for adjusting the height of the supporting beam, the bottom die bent frame can be stably supported at the position of the lifting beam hole, the bottom die bent frame is smoothly connected with the plane of a prefabricated beam pedestal at the position of the lifting beam hole, the finished prefabricated beam meets the preset requirement in the beam forming line shape after pouring is guaranteed, and the bottom die bent frame can be rapidly and conveniently detached and conveyed out of the position of the lifting beam hole, so that bottom pocket hanging of the prefabricated beam is finished.
Description
Technical Field
The invention relates to the field of precast beam bases, in particular to a bottom die base for a precast beam base beam lifting hole and a using method thereof.
Background
A large amount of production of precast beams is involved in the bridge construction process, and the mode of bottom-pocket hoisting is mostly adopted for hoisting and moving the precast beams from a beam-making pedestal.
The prefabricated beam pedestal is provided with a beam lifting hole by adopting a bottom-pocket hanging mode; the conventional treatment mode is to adopt wood wedges and steel stool shoveling pads under a steel plate of a bottom die of a lifting beam hole. The condition that the copying pad is uneven and unstable easily appears in the die block steel plate in this conventional processing mode, die block steel plate four corners elevation easily goes out great deviation, leads to with the precast beam pedestal plane not parallel and level on every side, and then leads to appearing leaking thick liquid easily and the condition of wrong platform at the bottom of the beam, unevenness in concrete placement in-process, simultaneously, demolish also comparatively inconvenient to handle beam hole department die block steel plate when the precast beam is accomplished.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a bottom die pedestal for a precast beam pedestal beam lifting hole, which can ensure that a poured precast beam meets the requirement and has the characteristic of easy disassembly.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows: a bottom die pedestal for prefabricating beam pedestal beam lifting holes, comprising:
the bottom die bent frame is matched with the shape of the lifting beam hole;
the transfer structure comprises a plurality of rollers arranged below the bottom die bent and a track for the rollers to slide;
support adjustment mechanism, it is including being fixed in a plurality of supporting beams of die block framed bent below and being fixed in a plurality of bracketing of supporting beam below, the bracketing is used for adjusting the height of supporting beam.
On the basis of the technical scheme, the bottom die bent frame comprises bottom die steel panels, a plurality of longitudinal supporting beams which are longitudinally arranged in parallel at intervals are arranged under the bottom die steel panels, and a plurality of transverse supporting beams which are vertically arranged in parallel at intervals are arranged under the longitudinal supporting beams.
On the basis of the technical scheme, be equipped with a plurality of regulation holes on the supporting beam, bracketing one end is equipped with the screw thread and passes the regulation hole, be equipped with on the bracketing two with the nut that the screw thread matches, the nut is located supporting beam both sides.
On the basis of the technical scheme, the diameter of the adjusting hole is larger than that of the support and smaller than the outer diameter of the nut.
On the basis of the technical scheme, the supporting bracket is a hydraulic pump.
On the basis of the technical scheme, 4 rollers and 4 supporting brackets are arranged.
On the basis of the technical scheme, the section of the roller is in a groove shape.
On the basis of the technical scheme, the bottom of the support is provided with a base plate.
The invention also provides a using method of the bottom die pedestal, which is characterized by comprising the following steps:
prefabricating a bottom die pedestal;
embedding the track part in a precast beam pedestal lifting beam hole, and moving a bottom die bent frame to the precast beam pedestal lifting beam hole through a transfer structure to enable the projection of the bottom die bent frame to be connected with the table top of the precast beam pedestal;
the adjusting and supporting adjusting mechanism controls the bottom die bent frame to ascend until the bottom die bent frame is connected with the table top of the precast beam pedestal;
after the precast beam is poured, the adjusting and supporting mechanism controls the bottom die bent frame to descend to the roller wheel to be placed on the track, and the transferring structure moves the bottom die bent frame to the outside of the beam lifting hole of the precast beam pedestal.
On the basis of the technical scheme, when the support adjusting mechanism adjusts the bottom die bent frame to descend to the roller wheel to be placed on the track, the support continues to be adjusted, so that one end, far away from the support beam, of the support is separated.
Compared with the prior art, the invention has the advantages that:
(1) according to the bottom die pedestal for the precast beam pedestal girder lifting hole, the bottom die bent frame and the supporting and adjusting mechanism are arranged, the bottom die bent frame can be stably supported at the girder lifting hole, the bottom die bent frame is smoothly connected with the precast beam pedestal plane at the girder lifting hole, so that the finished beam forming line of the precast beam meets the preset requirement, and the bottom die bent frame can be rapidly and conveniently detached and transported out of the girder lifting hole through the supporting and adjusting mechanism and the transferring structure after the precast beam is finished, so that bottom pocket hoisting of the precast beam is finished.
(2) The bottom die bent frame comprises a bottom die steel panel, a longitudinal supporting beam and a transverse supporting beam, the overall rigidity of the bottom die bent frame can be improved, and the condition that bending deformation cannot occur when the precast beam is poured is guaranteed.
Drawings
FIG. 1 is a schematic structural diagram of a bottom die base in an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating the lifting of a bottom die base according to an embodiment of the present invention;
fig. 3 is a schematic diagram illustrating the removal of the bottom die base in the embodiment of the present invention.
In the figure: 1-bottom die bent, 11-bottom die steel panels, 12-longitudinal support beams, 13-transverse support beams, 2-transfer structures, 21-rails, 22-rollers, 3-support adjusting mechanisms, 31-support beams, 32-supports, 33-nuts, 4-backing plates and 5-precast beam pedestals.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Referring to fig. 1 and 2, an embodiment of the present invention provides a bottom die pedestal for prefabricating a beam lifting hole of a beam pedestal, including a bottom die bent frame 1, a transfer structure 2 and a support adjusting mechanism 3, where the bottom die bent frame 1 matches the beam lifting hole in shape, the transfer structure 2 includes a rail 21 and a plurality of rollers 22 disposed below the bottom die bent frame 1, preferably, there are 4 rollers 22, the rollers 22 are configured to slide on the rail 21 to complete transfer of the bottom die bent frame 1, the support adjusting mechanism 3 includes a plurality of support beams 31 fixed to the bottom die bent frame 1 and a plurality of braces 32 connected to the support beams 31, preferably, there are 4 braces 32, and the braces 32 are configured to adjust the support beams 31 to move up and down.
The bottom die bent frame 1 and the supporting and adjusting mechanism 3 are arranged, when the bottom die bent frame 1 needs to be fixed at a lifting beam hole, the bottom die bent frame 1 is lifted through the supporting and adjusting mechanism 3, the bottom die bent frame 1 is supported, the bottom die bent frame 1 is enabled to be smoothly jointed with a prefabricated beam pedestal plane at the lifting beam hole, and therefore the beam forming line shape of the prefabricated beam after the pouring is finished can meet the preset requirement, after the prefabricated beam is poured, the supporting and supporting 32 is adjusted to enable the bottom die bent frame 1 to be separated from the prefabricated beam, the transferring operation of the bottom die bent frame 1 is completed through the action of the transferring structure 2, the bottom die bent frame 1 is transferred out of the lifting beam hole, so that the subsequent bottom pocket hanging of the prefabricated beam is completed, wherein the pouring of the prefabricated beam is completed through the matching action of the existing bottom die steel plate and the shoveling pad needs to be firstly removed, and because in the process of pouring the prefabricated beam, the corresponding pressure can be generated to cause the shoveling pad positioned below the bottom die steel plate to have larger friction force with the bottom die steel plate and the ground, so that the shoveling pad and the subsequent bottom die steel plate are not convenient to remove, and the corresponding friction force can not be increased when the bottom die bent 1 is removed through the ascending and descending effects of the adjusting bottom die bent 1 of the supporting bracket 32, thereby having the characteristic of being convenient to remove.
Furthermore, a plurality of adjusting holes are formed in the supporting beam 31, threads are formed in one end of the supporting support 32 and penetrate through the adjusting holes, two nuts 33 matched with the threads are arranged on the supporting support 32, the nuts 33 are located on two sides of the supporting beam 31, and when the height of the bottom die bent frame 1 is adjusted, the height of the bottom die bent frame 1 is changed by adjusting the positions of the two nuts 33 on the supporting support 32, so that the bottom die bent frame is flush with the platform surface of a precast beam pedestal around a lifting beam hole and is separated from a cast precast beam; wherein, the diameter of the adjusting hole is larger than the diameter of the support 32 and smaller than the outer diameter of the nut 33.
Further, the bracketing 32 is the hydraulic pump, when the bracketing 32 is the hydraulic pump, only need be connected the one end and the supporting beam 31 of hydraulic pump, when adjusting die block bent 1 height, certain jacking supporting beam 31 of hydraulic pump one end shore, accomplish the height of jacking die block bent 1 with this, and simultaneously, when die block bent 1 is demolishd to needs, return stroke effect through the hydraulic pump makes die block bent 1 can not receive the holding power of hydraulic pump, accomplish breaking away from of die block bent 1, the setting of hydraulic pump has the characteristics that the regulation is convenient and easily acquireed.
The bottom die bent 1 comprises a bottom die steel panel 11, a plurality of longitudinal supporting beams 12 which are longitudinally arranged in parallel at intervals are arranged below the bottom die steel panel 11, and a plurality of transverse supporting beams 13 which are vertically arranged side by side at intervals are arranged below the longitudinal supporting beams 12, so that the bottom die bent 1 can be reinforced, and the bottom die bent 1 cannot be deformed or damaged due to overlarge pouring acting force when the bottom die bent 1 is poured with precast beams, so that the bottom die bent 1 is not flush with the pedestal planes of the precast beams around, and further slurry leakage and slab bottom dislocation and unevenness of the precast beams can be caused in the concrete pouring process; the vertical support beams 12 and the horizontal support beams 13 are provided to improve the stability of the bottom die bent 1.
The section of the roller 22 is a groove shape, so that when the roller 22 slides on the track 21, the roller can stably slide on the track 21 due to the structural action of the roller, and the roller is not easy to deviate from the track 21.
The bottom of bracketing 32 is equipped with backing plate 4, through the backing plate 4 that sets up, can increase the area of contact of bracketing 32 and ground to avoid because the bracketing 32 atress is great, make bracketing 32 department ground sunken, the die block framed bent 1 slope of regulation finally appears, or the die block framed bent 1 condition that highly can not reach the requirement of regulation.
Referring to fig. 2 and 3, an embodiment of the present invention further provides a using method of using the bottom die base, including the following steps:
prefabricating a bottom die pedestal;
embedding the track 21 part in a precast beam pedestal lifting beam hole, and moving the bottom die bent frame 1 to the precast beam pedestal lifting beam hole through the transfer structure 2 to enable the projection of the bottom die bent frame 1 to be connected with the table top of the precast beam pedestal;
the adjusting support adjusting mechanism 3 controls the bottom die bent frame 1 to ascend until the bottom die bent frame 1 is connected with the platform surface of the precast beam pedestal;
after the precast beam is poured, the adjusting and supporting mechanism 3 controls the bottom die bent frame 1 to descend to the roller 22 to be placed on the rail 21, and the transferring structure 2 moves the bottom die bent frame 1 to the outside of the precast beam pedestal beam lifting hole.
The rail 21 is pre-embedded, so that the rail 21 can not be displaced when the bottom die bent frame 1 moves on the rail 21, and the bottom die bent frame 1 cannot move into the lifting beam hole; after the dismantling work of the bottom die bent frame 1 is completed, the bottom hoisting operation of the poured precast beam pocket is performed, after the precast beam hoisting is completed, the transferring operation and the supporting and adjusting operation of the transferring structure 2 and the supporting and adjusting mechanism 3 are repeated, and the supporting operation of another poured precast beam is completed.
The present invention is not limited to the above-described embodiments, and it will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and such modifications and improvements are also considered to be within the scope of the present invention. Those not described in detail in this specification are within the skill of the art.
Claims (8)
1. The utility model provides a die block pedestal that is used for precast beam pedestal to carry beam hole which characterized in that includes:
the bottom die bent frame (1) is matched with the shape of the lifting beam hole;
the transfer structure (2) comprises a plurality of rollers (22) arranged below the bottom die bent frame (1) and a track (21) for the rollers (22) to slide;
the supporting and adjusting mechanism (3) comprises a plurality of supporting beams (31) fixed below the bottom die bent frame (1) and a plurality of supporting brackets (32) fixed below the supporting beams (31), and the supporting brackets (32) are used for adjusting the height of the supporting beams (31);
the bottom die bent frame (1) comprises a bottom die steel panel (11), a plurality of longitudinal supporting beams (12) which are longitudinally arranged in parallel at intervals are arranged below the bottom die steel panel (11), and a plurality of transverse supporting beams (13) which are vertically arranged in parallel at intervals are arranged below the longitudinal supporting beams (12);
be equipped with a plurality of regulation holes on supporting beam (31), bracketing (32) one end is equipped with the screw thread and passes the regulation hole, be equipped with on bracketing (32) two with nut (33) that the screw thread matches, nut (33) are located supporting beam (31) both sides.
2. The bottom die block for prefabricating beam block lifting holes of claim 1, wherein: the diameter of the adjusting hole is larger than that of the support (32) and smaller than the outer diameter of the nut (33).
3. The bottom die block for prefabricating beam block lifting holes of claim 1, wherein: the bracketing (32) is a hydraulic pump.
4. The bottom die block for prefabricating beam block lifting holes of claim 1, wherein: the rollers (22) and the supporting brackets (32) are respectively provided with 4.
5. The bottom die block for prefabricating beam block lifting holes of claim 1, wherein: the section of the roller (22) is groove-shaped.
6. The bottom die block for prefabricating beam block lifting holes of claim 1, wherein: and a backing plate (4) is arranged at the bottom of the support (32).
7. A method of using the bottom die base of claim 1, comprising the steps of:
prefabricating a bottom die pedestal;
embedding a track (21) into a precast beam pedestal lifting beam hole, and moving a bottom die bent frame (1) into the precast beam pedestal lifting beam hole through a transfer structure (2) to enable the projection of the bottom die bent frame (1) to be connected with the precast beam pedestal table top;
the adjusting support adjusting mechanism (3) controls the bottom die bent frame (1) to ascend until the bottom die bent frame (1) is connected with the table top of the precast beam pedestal;
after the precast beam is poured, the adjusting and supporting adjusting mechanism (3) controls the bottom die bent frame (1) to descend to the roller (22) to be placed on the rail (21), and the transferring structure (2) moves the bottom die bent frame (1) to the outside of the precast beam pedestal beam lifting hole.
8. The method of using the bottom die base according to claim 7, wherein: when the support adjusting mechanism (3) adjusts the bottom die bent frame (1) to descend to the roller (22) to be placed on the track (21), the support bracket (32) continues to be adjusted, so that one end, far away from the support beam (31), of the support bracket (32) is separated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811481141.4A CN109849157B (en) | 2018-12-05 | 2018-12-05 | Bottom die pedestal for prefabricating beam lifting hole of beam pedestal and using method of bottom die pedestal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811481141.4A CN109849157B (en) | 2018-12-05 | 2018-12-05 | Bottom die pedestal for prefabricating beam lifting hole of beam pedestal and using method of bottom die pedestal |
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| Publication Number | Publication Date |
|---|---|
| CN109849157A CN109849157A (en) | 2019-06-07 |
| CN109849157B true CN109849157B (en) | 2020-12-01 |
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| CN110593047B (en) * | 2019-09-27 | 2024-04-19 | 上海城建市政工程（集团）有限公司 | Prefabricated terrace for prefabricating large formwork for bridge upright posts and application method of prefabricated terrace |
| CN110561596A (en) * | 2019-10-17 | 2019-12-13 | 福建鸿生高科环保科技有限公司 | Precast beam mold and working method thereof |
| CN111823363A (en) * | 2020-06-22 | 2020-10-27 | 广东省建筑工程机械施工有限公司 | Novel precast beam bottom die and construction method thereof |
| CN112411381A (en) * | 2020-10-26 | 2021-02-26 | 中交路桥建设有限公司 | Construction method for erecting precast box girder of overbridge in deep cutting area |
| CN113059685B (en) * | 2021-03-31 | 2023-07-21 | 武汉联展达岩土工程技术有限公司 | Precast beam construction system and construction method |
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| FR2933718B1 (en) * | 2008-07-08 | 2011-12-02 | Razel | METHOD FOR MAKING A BRIDGE, IN PARTICULAR A MIXED DECK AND FORMWORK SYSTEM SUITABLE FOR IMPLEMENTING SUCH A METHOD |
| CN204054323U (en) * | 2014-06-28 | 2014-12-31 | 中铁十局集团第三建设有限公司 | Steel construction assembled beam making bench |
| CN204094940U (en) * | 2014-09-11 | 2015-01-14 | 葛洲坝集团第二工程有限公司 | Pre-embedded steel slab supertronic pedestal at the bottom of Precast T-Beam beam |
| CN204487809U (en) * | 2015-02-12 | 2015-07-22 | 河南省公路工程局集团有限公司 | Formula steel construction beam making bench beaten by combination cover |
| CN206825658U (en) * | 2017-05-31 | 2018-01-02 | 中铁四局集团路桥工程有限公司 | The prefabricated clipping adjustable T beams pedestal for becoming length T beams |
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