CN209891093U - Prepressing device of continuous rigid frame hanging basket of triangular bracket - Google Patents
Prepressing device of continuous rigid frame hanging basket of triangular bracket Download PDFInfo
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- CN209891093U CN209891093U CN201920213916.3U CN201920213916U CN209891093U CN 209891093 U CN209891093 U CN 209891093U CN 201920213916 U CN201920213916 U CN 201920213916U CN 209891093 U CN209891093 U CN 209891093U
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- bracket
- distribution beam
- hanging basket
- jack
- continuous rigid
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Abstract
The utility model discloses a prepressing device of a continuous rigid frame hanging basket of a triangular bracket, which comprises a distribution beam arranged on a longitudinal beam of a bottom die of the hanging basket, wherein a jack is arranged on the distribution beam; a bracket with a right-angled triangle structure is arranged above the jack; a right-angle side of the bracket is fixed on the cantilever through an embedded bolt, and the lower part of the other right-angle side is contacted with the telescopic end of the jack; the upper end of the bracket is connected with a bracket; the utility model discloses can improve the efficiency of construction of loading and uninstallation among the pre-compaction process, practice thrift engineering time, simple structure, reducible construction input, reduce high altitude construction hoist and mount risk.
Description
Technical Field
The utility model relates to a pre-compaction device of basket is hung to continuous rigid frame, concretely relates to pre-compaction device of basket is hung to continuous rigid frame of triangular bracket.
Background
With the rapid development of the railway industry in China, bridge engineering is also developed towards the direction of high piers and large spans; the traditional continuous rigid frame hanging basket prepressing device is not suitable for a fast-paced and low-risk construction environment; the traditional counterweight prepressing method is suitable for the range that most cranes in the market can hoist pier heights less than 30m, and counterweight prepressing is used for hoisting precast blocks, reinforcing steel bars, steel strands or sandbag heaping; in the construction process, the hoisting, stacking and unloading construction risks are high, the construction period is long, the speed is low, the heights of most pier bodies are not too high, and the method is suitable for the range which can be reached by a common crane; the water tank water adding prepressing method wastes time and labor, and the actual stress state of the hanging basket is difficult to simulate.
SUMMERY OF THE UTILITY MODEL
The utility model provides a simulation is hung basket actual stress state, and accurate measurement hangs basket each parts warp the continuous rigid frame of triangular bracket of numerical value and hangs pre-compaction device of basket.
The utility model adopts the technical proposal that: a prepressing device of a continuous rigid frame hanging basket of a triangular bracket comprises a distribution beam arranged on a longitudinal beam of a bottom die of the hanging basket, wherein a jack is arranged on the distribution beam; a bracket with a right-angled triangle structure is arranged above the jack; a right-angle side of the bracket is fixed on the cantilever through an embedded bolt, and the lower part of the other right-angle side is contacted with the telescopic end of the jack; the upper end of the bracket is connected with the bracket.
Further, the distribution beam comprises a first longitudinal distribution beam and a second longitudinal distribution beam arranged above the first longitudinal distribution beam.
Further, a transverse distribution beam is arranged between the first longitudinal distribution beam and the second longitudinal distribution beam.
Furthermore, a distribution beam cushion block is arranged between the distribution beam and the longitudinal beam.
Furthermore, a horizontal cushion block is arranged between the jack and the bracket.
Further, the distribution beam cushion block comprises a first cushion block and a second cushion block.
The utility model has the advantages that:
(1) the utility model can improve the construction efficiency of loading and unloading in the prepressing process and save the construction time;
(2) the utility model can ensure the construction quality of cradle prepressing, the cradle structure is clear in stress, accurate in data and easy to control prepressing load;
(3) the utility model discloses simple structure, reducible construction input reduce high altitude construction hoist and mount risk.
Drawings
Fig. 1 is the schematic view of the installation structure of the distribution beam of the present invention.
Fig. 2 is a schematic structural diagram of the present invention.
In the figure: 1-longitudinal beam, 2-first longitudinal distribution beam, 3-second longitudinal distribution beam, 4-transverse distribution beam, 5-first cushion block, 6-second cushion block, 7-jack, 8-bracket, 9-bracket and 10-embedded bolt.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-2, the prepressing device of the continuous rigid frame cradle of the triangular bracket comprises a distribution beam arranged on a cradle bottom die longitudinal beam 1, wherein a jack 7 is arranged on the distribution beam; a bracket 8 with a right-angled triangle structure is arranged above the jack 7; a right-angle side of the bracket 8 is fixed on the cantilever through an embedded bolt 10, and the lower part of the other right-angle side is contacted with the telescopic end of the jack 7; the upper end of the bracket 8 is connected with a bracket 9.
The distribution beam comprises a first longitudinal distribution beam 2 and a second longitudinal distribution beam 3 arranged above it. A transverse distribution beam 4 is arranged between the first longitudinal distribution beam 2 and the second longitudinal distribution beam 3; and a distribution beam cushion block is arranged between the distribution beam and the longitudinal beam 1. A horizontal cushion block is arranged between the jack 7 and the bracket 8. The distribution beam block comprises a first block 5 and a second block 6.
When in use, the prepressing is carried out according to the following steps:
step 1: the elevation values of the longitudinal beam and the transverse beam of the bottom basket are well controlled in the hanging basket installation process; the bottom die longitudinal beam 1 is basically horizontally arranged, and the rear ends of the bottom basket rear cross beam and the bottom longitudinal beam and the cantilever bottom plate are jacked and fastened by a screw jack.
Step 2: the 4I56a first longitudinal distribution beam 2, the 2I40a transverse distribution beam 4 and the 4I56b second longitudinal distribution beam 3 are sequentially installed from bottom to top, installation elevations need to be accurately measured after installation is finished, the elevations of the top surfaces of all components need to be consistent, and load transmission is guaranteed to be uniform.
And step 3: a bracket 9 is installed through an embedded box, and a fixing bracket 8 is installed through an embedded bolt 10; the embedded bolt 10 is made of finish-rolled deformed steel bar; the jack 7 is arranged above the bracket 8 and the upper second longitudinal distribution beam 3 in the middle; and the space between the jack 7 and the bracket 8 and the space between the distribution beams are leveled through steel structure cushion blocks.
And 4, step 4: after the installation is finished, a cradle prepressing load value is obtained according to the midas software integral modeling stress analysis, the two side web plates are prepressed by 210t, and the middle web plate is prepressed by 250 t; the intelligent tensioning equipment is used for controlling the load applied by the jack 7, so that the jack 7 is pre-pressed according to four stages (10% design load → 50% design load → 100% design load → 120% design load); the oil pumping speed of the jack 7 is uniformly adjusted to achieve the purpose of uniformly applying the pre-pressing load; and after each level of load loading is finished, respectively observing measurement observation points arranged on the front upper beam, the lower beam, the front fulcrum and the rear anchor point of the cradle by using a total station and a level gauge, and further calculating and analyzing to obtain cradle pre-pressing deformation data.
And 5: and after finishing the unloading, synchronously and uniformly unloading, and observing and recording the rebounding data of the cradle after unloading.
The structure of the utility model is suitable for No. 2 super bridge continuous rigid frame No. 0 highest pier height 87m of the desert valley; pre-buried bolt 10 and bracket hole in the 0# piece concrete work progress, after concrete placement accomplished string basket installation, installation bracket 9, bracket 8 and distribution beam, through 7 jacking brackets 8 of jack to hang the basket and produce the mesh of decurrent power and reach the pre-compaction.
The bottom basket transmits force to the hanging basket main truss and the constructed 0# block through the front and rear hanging strips and the hanging rods; the actual stress state of the hanging basket is simulated, and the deformation numerical values of all parts of the hanging basket can be accurately measured subsequently, so that the aim of prepressing the hanging basket is fulfilled; and the common construction materials and instruments and equipment for railway engineering are fully utilized, and the common construction materials comprise I-shaped steel, channel steel, steel plates, hydraulic jacks and finish-rolled deformed steel bars (matched nut base plates and the like).
The second longitudinal distribution beam 3 is made of 4I56b (56 b I-steel), the first longitudinal distribution beam 2 is made of 2I40a (double-split 40a I-steel), and the bracket 8 is made of double-split 45b and 56b I-steel; the bracket 9 is made of a 2cm thick steel plate, and the jack 7 is an YDC-5000 type hydraulic jack. During the use, the jack is total six, and corresponding bracket 8 and bracket 9 set up to six too, and the schematic sign only has one in the drawing, still can specifically set up the quantity of jack according to the precompression data that needs measured.
Claims (6)
1. A prepressing device of a continuous rigid frame hanging basket of a triangular bracket is characterized by comprising a distribution beam arranged on a bottom die longitudinal beam (1) of the hanging basket, wherein a jack (7) is arranged on the distribution beam; a bracket (8) with a right-angled triangle structure is arranged above the jack (7); a right-angle edge of the bracket (8) is fixed on the cantilever through an embedded bolt (10), and the lower part of the other right-angle edge is contacted with the telescopic end of the jack (7); the upper end of the bracket (8) is connected with a bracket (9).
2. A prestressing device for a continuous rigid structure pannier of tripod type according to claim 1, characterized in that said distribution beams comprise a first longitudinal distribution beam (2) and a second longitudinal distribution beam (3) arranged above it.
3. The prepressing device of a continuous rigid-framed hanging basket of a tripod according to claim 2, characterized in that a transverse distribution beam (4) is arranged between the first longitudinal distribution beam (2) and the second longitudinal distribution beam (3).
4. The prepressing device of the continuous rigid frame hanging basket of the triangular bracket according to claim 1, characterized in that a distributing beam cushion block is arranged between the distributing beam and the longitudinal beam (1).
5. The prepressing device of the continuous rigid frame hanging basket with the triangular bracket according to claim 1, characterized in that a horizontal cushion block is arranged between the jack (7) and the bracket (8).
6. The prepressing device of the continuous rigid frame hanging basket of the triangular bracket according to claim 4, characterized in that the distribution beam cushion blocks comprise a first cushion block (5) and a second cushion block (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920213916.3U CN209891093U (en) | 2019-02-20 | 2019-02-20 | Prepressing device of continuous rigid frame hanging basket of triangular bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920213916.3U CN209891093U (en) | 2019-02-20 | 2019-02-20 | Prepressing device of continuous rigid frame hanging basket of triangular bracket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209891093U true CN209891093U (en) | 2020-01-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920213916.3U Active CN209891093U (en) | 2019-02-20 | 2019-02-20 | Prepressing device of continuous rigid frame hanging basket of triangular bracket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209891093U (en) |
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2019
- 2019-02-20 CN CN201920213916.3U patent/CN209891093U/en active Active
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