CN214939412U - A down hold formula reaction frame for pre-compaction of bridge string basket - Google Patents

A down hold formula reaction frame for pre-compaction of bridge string basket Download PDF

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Publication number
CN214939412U
CN214939412U CN202121566036.8U CN202121566036U CN214939412U CN 214939412 U CN214939412 U CN 214939412U CN 202121566036 U CN202121566036 U CN 202121566036U CN 214939412 U CN214939412 U CN 214939412U
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China
Prior art keywords
reaction frame
thin
hanging basket
piece
reaction
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Active
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CN202121566036.8U
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Chinese (zh)
Inventor
曹金生
郑印
吴刚
王丹
王翔
王嘉培
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Zhejiang Jiaogong equipment Engineering Co.,Ltd.
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Zhejiang Communications Construction Group Co Ltd
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Abstract

A lower bearing type reaction frame for prepressing a bridge hanging basket comprises a thin-wall pier, wherein a reaction frame structure is arranged on one side of the thin-wall pier, and a 0# block is arranged at the top of the thin-wall pier; one side installation finish rolling screw-thread steel, the connecting rod of 0# piece, basket structure is hung in the top installation of 0# piece, and reaction frame structure passes through the finish rolling screw-thread steel and is connected with 0# piece, and it passes through the connecting rod and is connected with 0# piece to hang the basket structure, compares with prior art, the utility model discloses practice thrift engineering time, reduce the construction input, realized quick, accurate, synchronous application load and uninstallation purpose, guarantee to hang the pre-compaction construction quality of basket, reduce high altitude construction hoist and mount risk.

Description

A down hold formula reaction frame for pre-compaction of bridge string basket
Technical Field
The utility model belongs to the technical field of hang basket pre-compaction construction technique and specifically relates to a lower formula reaction frame that holds that is used for basket pre-compaction is hung to bridge.
Background
At present, in bridge under construction, continuous rigid frame bridges are very common and have a large proportion in the bridge, the superstructure of the bridge is generally constructed by a hanging basket suspension casting method, and the key of the hanging basket suspension casting method construction is a hanging basket prepressing technology. The prepressing of the hanging basket is an indispensable construction step, the prepressing of the hanging basket mainly aims to verify the reliability of the hanging basket and eliminate the inelastic deformation of the hanging basket, and meanwhile, the actual deformation values of the hanging basket under different loads are measured so as to correct the elevation of the vertical mold. At present, the hanging basket prepressing method mainly adopts a method of directly piling and loading sand bags, concrete precast blocks, water bags and the like.
The method is long in time consumption and high in cost, the actual working state of the cradle is difficult to simulate, and the preloading construction requirement of the suspended casting cradle of the continuous rigid frame bridge is often difficult to adapt due to the limited operation space of the cradle and the limited stacking quantity.
In order to solve the problems, the lower bearing type reaction frame is multifunctional, safe, reliable, simple and convenient to operate and capable of accurately simulating the working state of the construction hanging basket.
SUMMERY OF THE UTILITY MODEL
The utility model relates to an overcome the defect among the above-mentioned prior art, provide a function various, safe and reliable, it is easy and simple to handle, can accurate simulation construction hang basket operating condition's lower formula reaction frame.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a lower bearing type reaction frame for prepressing a bridge hanging basket comprises a thin-wall pier, wherein a reaction frame structure is arranged on one side of the thin-wall pier, and a 0# block is arranged at the top of the thin-wall pier; one side installation finish rolling screw-thread steel, the connecting rod of 0# piece, basket structure is hung in the top installation of 0# piece, and reaction frame structure passes through the finish rolling screw-thread steel and is connected with 0# piece, hangs the basket structure and passes through the connecting rod and be connected with 0# piece.
As a preferred scheme of the utility model, the reaction frame structure includes a plurality of steel sheets, a plurality of buried bolt in advance, and the steel sheet passes through buried bolt in advance to be fixed on the thin wall mound, the steel sheet includes the first steel sheet of laying in the thin wall mound upper end and the second steel sheet of laying in the thin wall mound lower extreme.
As a preferred scheme of the utility model, reaction frame structure still includes bracing piece, slope pole, counter-force roof beam, and the one end of slope pole is passed through the second steel sheet and is installed on the thin wall mound, and the other end of slope pole is installed on the counter-force roof beam, and the one end of counter-force roof beam is installed on the thin wall mound through first steel sheet.
As a preferred scheme of the utility model, slope pole and second steel sheet welded connection, threaded connection between slope pole and the reaction roof beam.
As a preferred scheme of the utility model, reaction beam and first steel sheet welded connection.
As a preferred scheme of the utility model, bracing piece one end welding is on the counter-force roof beam, and the bracing piece other end welding is on the sloping pole.
As the utility model discloses a preferred scheme, install the wedge on the 0# piece, install the distribution roof beam on the wedge, on the distribution roof beam level was laid in the 0# piece, the jack had been laid at the top of distribution roof beam.
As the utility model discloses a preferred scheme, bolted connection is passed through in finish rolling screw-thread steel one end in the reaction beam bottom portion, and the other end of finish rolling screw-thread steel is fixed on the distribution roof beam.
As an optimized scheme of the utility model, connecting rod one end is connected at the tip of 0# piece, and the connecting rod other end is fixed structurally at hanging the basket.
As an optimized proposal of the utility model, the included angle between the finish rolling deformed steel bar and the counter-force beam is 90 degrees.
The utility model has the advantages that: compared with the prior art, the method has the following beneficial effects:
1. the utility model discloses utilize present 0# piece bracket simulation construction to hang basket operating condition, save material cost.
2. The utility model discloses a hang the basket atress clearly and definitely, the pre-compaction load of easy control, and the pre-compaction facility is simple, can improve the efficiency of construction of pre-compaction in-process loading and uninstallation greatly.
3. The utility model discloses practice thrift the engineering time, reduce the construction and drop into, realized quick, accurate, in step apply load and uninstallation purpose, guarantee the pre-compaction construction quality of hanging the basket, reduce high altitude construction hoist and mount risk.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a perspective view of the present invention;
reference numbers in the figures: the steel plate comprises thin-wall piers 1, a No. 0 block 2, a rear anchor point 3, a reaction frame structure 4, finish rolling deformed steel bars 5, wedge blocks 6, a distribution beam 7, a jack 8, a front support point 9, a hanging basket structure 10, a connecting rod 11, a steel plate 41, a supporting rod 42, an inclined rod 43, a reaction beam 44, an embedded bolt 45, a first steel plate 411 and a second steel plate 412.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the accompanying drawings.
As shown in fig. 1-2, the through-type reaction frame for prepressing the hanging basket of the bridge comprises a thin-wall pier 1, wherein a reaction frame structure 4 is arranged on one side of the thin-wall pier 1, and a No. 0 block 2 is arranged at the top of the thin-wall pier 1; 0# piece 2's one side installation finish rolling screw-thread steel 5, connecting rod 11, basket structure 10 is hung in the top installation of 0# piece 2, reaction frame structure 4 is connected with 0# piece 2 through finish rolling screw-thread steel 5, it is connected with 0# piece 2 through connecting rod 11 to hang basket structure 10, place jack 8 on 0# piece 2, jack 8 applys the effort on reaction frame structure 4 is transmitted to through finish rolling screw-thread steel 5, reach the purpose that the basket 10 was hung in the pre-compaction.
The reaction frame structure 4 comprises a plurality of steel plates 41 and a plurality of embedded bolts 45, the steel plates 41 are fixed on the thin-wall pier 1 through the embedded bolts 45, the steel plates 41 comprise first steel plates 411 distributed at the upper end of the thin-wall pier 1 and second steel plates 412 distributed at the lower end of the thin-wall pier 1, and the steel plates 41 and the thin-wall pier 1 are connected to facilitate the connection of the subsequent inclined rods 43 and the reaction beams 44 on the thin-wall pier 1.
The reaction frame structure 4 further comprises a support rod 42, an inclined rod 43 and a reaction beam 44, one end of the inclined rod 43 is mounted on the thin-wall pier 1 through a second steel plate 412, the other end of the inclined rod 43 is mounted on the reaction beam 44, one end of the reaction beam 44 is mounted on the thin-wall pier 1 through a first steel plate 411, and a stable triangular structure is formed among the inclined rod 43, the reaction beam 44 and the thin-wall pier 1, so that the stability of the pre-pressing hanging basket 10 is facilitated.
Incline pole 43 and second steel sheet 412 welded connection, threaded connection between incline pole 43 and the reaction beam 44, reaction beam 44 and first steel sheet 411 welded connection, threaded connection makes things convenient for the dismantlement in the installation of earlier stage also convenient later stage promptly between incline pole 43 and the reaction beam 44, and the error that exists among the welded connection also can be carried out slight adjustment by threaded connection.
One end of the support rod 42 is welded on the reaction beam 44, the other end of the support rod 42 is welded on the inclined rod 43, and the support rod 42 is arranged to further ensure the stability of the reaction frame structure 4.
Install wedge 6 on the 0# piece 2, install distributive girder 7 on the wedge 6, distributive girder 7 level is laid on 0# piece 2, distributive girder 7's top has been laid jack 8, jack 8 also level is laid on 0# piece 2, distributive girder 7, jack 8's level state of laying, when jack 8 applys the effort, can guarantee that the effort of jack 8 is vertical downwards.
The one end of the finish rolling deformed steel bar 5 is connected to the bottom of the counter-force beam 44 through the bolt, the other end of the finish rolling deformed steel bar 5 is fixed to the distribution beam 7, the included angle between the finish rolling deformed steel bar 5 and the counter-force beam 44 is 90 degrees, when the jack 8 applies the acting force, the stress of the finish rolling deformed steel bar 5 is more stable, the jack 8 applies the acting force, and the purpose of pre-pressing the hanging basket 10 is achieved by transmitting the finish rolling deformed steel bar 5 to the counter-force beam 44.
Connecting rod 11 one end is connected at the tip of 0# piece 2, and the connecting rod 11 other end is fixed on hanging basket structure 10, has connected hanging basket structure 10 and 0# piece 2, and corresponding power that has also transmitted.
When the lower bearing type reaction frame for prepressing the hanging basket of the bridge is specifically implemented:
step 1: the hanging basket structure 10 is hung on the 0# block 2 and is positioned through the rear anchor point 3 and the front fulcrum 9, the 0# block 2 is provided with a cross beam, the wedge-shaped block 6 and the distribution beam 7 are arranged on the cross beam, and the jack 8 is arranged on the distribution beam 7. One end of the finish rolling deformed steel bar 5 is fixed at the bottom of the counter-force beam 44 through bolt connection, the other end of the finish rolling deformed steel bar is fixed on the distribution beam 7, and the acting force is applied through the jack 8 and transmitted to the counter-force beam 44 through the finish rolling deformed steel bar 5, so that the effect of pre-pressing the hanging basket is achieved.
Step 2: the loading is carried out by adopting 2 jacks 8 respectively at the left half width and the right half width of 4 jacks, and the loading procedure is divided into 5 grades, namely 20 percent, 40 percent, 80 percent, 100 percent and 120 percent. In the loading process, deformation observation and appearance inspection of welding seams, bolts and pins are required to be carried out, and after the bearing capacity of the hanging basket meets the requirement, the next-stage loading can be carried out according to the result to be detected. After each data observation is completed, the user can unload the data.
And step 3: and unloading in two stages, wherein the unloading rate is 50% and 0% according to the proportion of the unloading rate to the maximum preloading load of the jack. Reading the data of the leveling measuring points once after each stage of unloading for 10min, if the deformation of the leveling measuring points does not exceed 1mm within 30min, considering that the deformation is stable, and carrying out next stage of unloading, wherein the damage to the structure and loading equipment is also prevented in the unloading process.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention; thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Although the reference numerals in the figures are used more here: the method comprises the following steps of thin-wall piers 1, a # 0 block 2, a rear anchor point 3, a reaction frame structure 4, finish-rolled deformed steel bar 5, a wedge-shaped block 6, a distribution beam 7, a jack 8, a front support point 9, a hanging basket structure 10, a connecting rod 11, a steel plate 41, a supporting rod 42, an inclined rod 43, a reaction beam 44, an embedded bolt 45, a first steel plate 411, a second steel plate 412 and other terms, but the possibility of using other terms is not excluded; these terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims (10)

1. The utility model provides a down hold formula reaction frame that is used for pre-compaction of bridge hanging basket which characterized in that: the device comprises a thin-wall pier (1), wherein a lower bearing type reaction frame structure (4) is arranged on one side of the thin-wall pier (1), and a 0# block (2) is arranged at the top of the thin-wall pier (1); one side installation finish rolling screw-thread steel (5), connecting rod (11) of 0# piece (2), basket structure (10) are hung in the top installation of 0# piece (2), and lower formula reaction frame structure (4) are connected with 0# piece (2) through finish rolling screw-thread steel (5), hang basket structure (10) and are connected with 0# piece (2) through connecting rod (11).
2. The underslung reaction frame for prepressing of a bridge hanging basket according to claim 1, characterized in that: the lower bearing type reaction frame structure (4) comprises a plurality of steel plates (41) and a plurality of embedded bolts (45), the steel plates (41) are fixed on the thin-wall pier (1) through the embedded bolts (45), and the steel plates (41) comprise first steel plates (411) distributed at the upper end of the thin-wall pier (1) and second steel plates (412) distributed at the lower end of the thin-wall pier (1).
3. The underslung reaction frame for prepressing of a bridge hanging basket according to claim 2, characterized in that: the through-type reaction frame structure (4) further comprises a support rod (42), an inclined rod (43) and a reaction beam (44), one end of the inclined rod (43) is installed on the thin-wall pier (1) through a second steel plate (412), the other end of the inclined rod (43) is installed on the reaction beam (44), and one end of the reaction beam (44) is installed on the thin-wall pier (1) through a first steel plate (411).
4. The underslung reaction frame for prepressing of a bridge hanging basket according to claim 3, characterized in that: the inclined rod (43) is connected with the second steel plate (412) in a welding mode, and the inclined rod (43) is connected with the reaction beam (44) in a threaded mode.
5. The underslung reaction frame for prepressing of a bridge hanging basket according to claim 4, characterized in that: the reaction beam (44) and the first steel plate (411) are connected in a welding mode.
6. The underslung reaction frame for prepressing of a bridge hanging basket according to claim 5, characterized in that: one end of the support rod (42) is welded on the reaction beam (44), and the other end of the support rod (42) is welded on the inclined rod (43).
7. The underslung reaction frame for prepressing of a bridge hanging basket according to claim 1, characterized in that: install wedge (6) on 0# piece (2), install distributive girder (7) on wedge (6), distributive girder (7) level is laid on 0# piece (2), jack (8) have been laid at the top of distributive girder (7).
8. The underslung reaction frame for prepressing of a bridge hanging basket according to claim 7, wherein: one end of the finish-rolled deformed steel bar (5) is connected to the bottom of the reaction beam (44) through a bolt, and the other end of the finish-rolled deformed steel bar (5) is fixed on the distribution beam (7).
9. The underslung reaction frame for prepressing of a bridge hanging basket according to claim 8, wherein: one end of the connecting rod (11) is connected to the end of the 0# block (2), and the other end of the connecting rod (11) is fixed to the hanging basket structure (10).
10. The underslung reaction frame for prepressing of a bridge hanging basket according to claim 9, wherein: the included angle between the finish rolling deformed steel bar (5) and the reaction beam (44) is 90 degrees.
CN202121566036.8U 2021-07-09 2021-07-09 A down hold formula reaction frame for pre-compaction of bridge string basket Active CN214939412U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121566036.8U CN214939412U (en) 2021-07-09 2021-07-09 A down hold formula reaction frame for pre-compaction of bridge string basket

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121566036.8U CN214939412U (en) 2021-07-09 2021-07-09 A down hold formula reaction frame for pre-compaction of bridge string basket

Publications (1)

Publication Number Publication Date
CN214939412U true CN214939412U (en) 2021-11-30

Family

ID=79074462

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121566036.8U Active CN214939412U (en) 2021-07-09 2021-07-09 A down hold formula reaction frame for pre-compaction of bridge string basket

Country Status (1)

Country Link
CN (1) CN214939412U (en)

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Effective date of registration: 20220223

Address after: 316000 room 424, No. 1, Xingyuan Road, Dinghai Industrial Park, Dinghai District, Zhoushan City, Zhejiang Province

Patentee after: Zhejiang Jiaogong equipment Engineering Co.,Ltd.

Address before: 310051 11th floor, Qianjiang building, 2031 Jiangling Road, Binjiang District, Hangzhou City, Zhejiang Province

Patentee before: ZHEJIANG COMMUNICATIONS CONSTRUCTION GROUP Co.,Ltd.