CN210946510U - Continuous rigid frame 0# block bracket pre-pressing device - Google Patents

Continuous rigid frame 0# block bracket pre-pressing device Download PDF

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Publication number
CN210946510U
CN210946510U CN201921438072.9U CN201921438072U CN210946510U CN 210946510 U CN210946510 U CN 210946510U CN 201921438072 U CN201921438072 U CN 201921438072U CN 210946510 U CN210946510 U CN 210946510U
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China
Prior art keywords
bracket
jack
pier body
pier
rigid frame
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Active
Application number
CN201921438072.9U
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Chinese (zh)
Inventor
温树鑫
张瑞
齐宏文
鲜思天
程新亮
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Sinohydro Corp Engineering Bureau 15 Co Ltd
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Sinohydro Corp Engineering Bureau 15 Co Ltd
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Priority to CN201921438072.9U priority Critical patent/CN210946510U/en
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Abstract

A continuous rigid frame 0# block bracket pre-pressing device is characterized in that a left upper bracket and a left lower bracket are arranged on one side face of a pier body of a pier, a right upper bracket and a right lower bracket are arranged on the opposite side face of the pier body, a temporary support is arranged between the left upper bracket and the left lower bracket close to the pier body, an upper jack is arranged on the upper surface of the left upper bracket, a lower jack is arranged on the lower surface of the right lower bracket, a temporary support is arranged between the right upper bracket and the right lower bracket close to the pier body, an upper jack is arranged on the upper surface of the right upper bracket, a lower jack is arranged on the lower surface of the right lower bracket, a tension rope is arranged between the upper jack and the lower jack, a distribution beam is arranged between the left upper bracket and the right upper bracket, and a distribution beam; the device realizes the pre-pressing loading of the bracket and the hanging basket through the finish rolling screw-thread steel and the jack, and realizes the control of the loading force through the jack oil pump, thereby replacing the traditional stacking method, saving materials, having high efficiency and small potential safety hazard.

Description

Continuous rigid frame 0# block bracket pre-pressing device
Technical Field
The utility model belongs to the technical field of bridge construction equipment or equipment, concretely relates to continuous rigid frame 0# piece reaction frame pre-compaction device.
Background
The continuous rigid frame 0# block is prepressed conventionally by means of surcharge preloading, the material consumption is large, the efficiency is low, the potential safety hazard is large, the reaction frame is used for prepressing at present, the construction efficiency is high, the period is short, and the construction is safe.
Disclosure of Invention
The utility model aims to solve the technical problem that overcome above-mentioned prior art not enough, provide a continuous rigid frame 0# piece reaction frame pre-compaction device of reasonable in design, simple structure, with low costs, the efficiency of construction is high, the cycle is short, construction safety.
The technical scheme for solving the technical problems is as follows: be provided with upper left bracket and left lower bracket on pier shaft side, upper left bracket and left lower bracket are close to and are provided with temporary support between the pier shaft side, upper left bracket upper surface is provided with the jack, lower right bracket lower surface is provided with lower jack, be provided with upper right bracket and lower right bracket on the pier shaft opposite flank, upper right bracket and lower right bracket are close to and are provided with temporary support between the pier shaft side, upper right bracket upper surface is provided with the jack, lower right bracket lower surface is provided with lower jack, be provided with the stay cord between upper right jack and the lower jack, be provided with the distribution roof beam between upper left bracket and the upper right bracket, be provided with the distribution roof beam between lower left bracket and the lower right bracket.
The utility model discloses a distribution beam is 2I 32b I-steel that set up side by side.
The utility model discloses a stretch-draw rope is the finish rolling screw-thread steel.
The utility model discloses a distance that upper left bracket and left bottom bracket are close to between the mound body side is 50cm, and distance that upper right bracket and right bottom bracket are close to between the mound body side is 50 cm.
The utility model discloses a support the upper end temporarily and reserve the 10mm clearance.
Compared with the prior art, the utility model has the following advantages:
(1) the device realizes the pre-pressing loading of the bracket and the hanging basket through the finish rolling screw-thread steel and the jack, and realizes the control of the loading force through the jack oil pump, thereby replacing the traditional stacking method, saving materials, having high efficiency and small potential safety hazard.
(2) The device adopts hydraulic power equipment to operate, saves a large amount of stacking materials, is convenient and fast to operate, and saves the construction period.
(3) And the hydraulic oil pump oil meter is adopted to control the tension force, so that the accurate control of the pre-pressing load is realized.
(4) For the preloading of the 0# block in the ultra-high altitude, the preloading of the jack is safe.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a left side view of fig. 1.
In the figure: 1. a bridge pier; 2. a left upper bracket; 3. a distribution beam; 4. a left lower bracket; 5. a right upper bracket; 6. lifting a jack; 7. temporary support; 8. stretching a rope; 9. a lower right bracket; 10. and (5) lowering the jack.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and examples, but the present invention is not limited to these examples.
Example 1
In fig. 1, 2, the utility model relates to a 0# piece bracket pre-compaction device of continuous rigid frame, the steel box and the finish rolling deformed steel bar pore of pre-buried bracket should be noted during the construction pier, install upper left bracket 2 and left lower bracket 4 with screw fastening connecting piece fixed connection on 1 pier shaft side of pier, upper left bracket 2 and left lower bracket 4 are close to and are provided with interim support 7 between the pier shaft side, because upper left bracket 2 and left lower bracket 4 stretch into within the pre-buried steel box in the pier shaft, support temporarily 7 upper ends and reserve the 10mm clearance, with the deformation of adaptation bracket along the steel box, upper left bracket 2 and left lower bracket 4 are close to the distance between the pier shaft side and are 50 cm. The upper surface of the upper left bracket 2 is provided with an upper jack 6, the lower surface of the lower left bracket 4 is provided with a lower jack 10, the upper right bracket 5 and the lower right bracket 9 are installed on the opposite side surface of the pier body 1 by using a threaded fastening connecting piece for fixed connection, the upper right bracket 5 and the lower right bracket 9 are provided with a temporary support 7 near the pier body side, because the upper right bracket 5 and the lower right bracket 9 stretch into a steel box embedded in the pier body, a 10mm gap is reserved at the upper end of the temporary support 7, so as to adapt to the deformation of the bracket along the steel box, and the distance between the pier body side near the upper right bracket 5 and the lower right bracket 9 is 50 cm. An upper jack 6 is arranged on the upper surface of the upper right bracket 5, a lower jack 10 is arranged on the lower surface of the lower right bracket 9, a stretching rope 8 is arranged between the upper jack 6 and the lower jack 10, and the stretching rope 8 is finish-rolled deformed steel bar. A distribution beam 3 is arranged between the upper left bracket 2 and the upper right bracket 5, the distribution beam 3 is arranged between the lower left bracket 4 and the lower right bracket 9, the distribution beam 3 is 2I 32b I-steel arranged side by side, in order to enable the distribution beam 3 to be connected into a whole, the force of a jack is applied to the triangular bracket, steel plates with the plate thickness not less than 12mm are welded at the upper edge and the lower edge of the I-steel, if the triangular bracket cannot be arranged at the same elevation, the thickness of the steel plates is determined according to the size of a gap, and the steel plates are padded between the brackets and the distribution beam 3.
When the bracket is pre-pressed, corresponding deformation measurement and recording work are simultaneously performed according to the principle of symmetrical, balanced, slow and graded loading. Before loading, a specially-assigned person is required to check whether the triangular bracket is completely inserted into the steel box or not and whether the finish-rolled deformed steel bar is screwed up or not, and the checking is required to be carried out carefully in the loading process.
The bracket prepressing adopts a high-strength finish rolling screw-thread steel tensioning rope to perform counter-tensioning, and the setting quantity of the tensioning end jacks and the control of the tensioning force need to be obtained through stress calculation. The finish rolling screw-thread steel stiff end adopts locking ground tackle to be fixed in self-control steel anchor case, and the upper end sets up the jack and carries out the stretch-draw and apply the load, and the upper and lower extreme is perpendicular, prevents to draw to one side and causes the fracture of finish rolling screw-thread steel.
When the bracket loads the pre-compaction, the loading procedure when the girder concrete is poured is basically simulated, and the two sides of the pier column are required to be simultaneously and symmetrically carried out, so that the pier column is ensured to be in a good stress state. The loading process is carried out in stages, and loading is carried out in the order of 40% → 80% → 100% → 120%. When unloading, the procedure is carried out in reverse order of the loading procedure.
And loading each stage of the preloading and unloading process, observing the deformation condition of the bracket at each stage, recording and analyzing, and providing a reliable basis for concrete pouring construction control.
And (3) arranging measuring points on the beam before prepressing, measuring the elevation of each measuring control point, and arranging 4 measuring control points of each No. 0 block in the transverse bridge direction on each bracket at the cantilever end.
And measuring the deformation before loading, during loading and after unloading by using a high-precision level gauge, and well recording.
The supporting component can not tightly push the upper triangular bracket and the lower triangular bracket, a gap of 5mm is reserved, and the supporting component participates in stress when overlarge displacement occurs in the test process so as to ensure safety.
The distribution beam constructed by double-spliced I32b I-steel is ensured to be closely attached to the triangular bracket, and when a gap occurs, the steel plate is padded, so that the reaction beam and the bracket are ensured to bear force together.

Claims (5)

1. The utility model provides a 0# piece bracket pre-compaction device of continuous rigid frame which characterized in that: a left upper bracket (2) and a left lower bracket (4) are arranged on one side face of a pier body of a pier (1), a temporary support (7) is arranged between the left upper bracket (2) and the left lower bracket (4) close to the pier body side, an upper jack (6) is arranged on the upper surface of the left upper bracket (2), a lower jack (10) is arranged on the lower surface of the left lower bracket (4), a right upper bracket (5) and a right lower bracket (9) are arranged on opposite sides of the pier body of the pier (1), the temporary support (7) is arranged between the right upper bracket (5) and the right lower bracket (9) close to the pier body side, the upper jack (6) is arranged on the upper surface of the right upper bracket (5), the lower jack (10) is arranged on the lower surface of the right lower bracket (9), a tension rope (8) is arranged between the upper jack (6) and the lower jack (10), and a distribution beam (3) is arranged between the left upper bracket (2) and, a distribution beam (3) is arranged between the left lower bracket (4) and the right lower bracket (9).
2. The continuous rigid frame # 0 block bracket preloading device of claim 1, wherein: the distribution beam (3) is 2I 32b I-shaped steel arranged side by side.
3. The continuous rigid frame # 0 block bracket preloading device of claim 1, wherein: the stretching rope (8) is finish-rolled deformed steel bar.
4. The continuous rigid frame # 0 block bracket preloading device of claim 1, wherein: the distance between the side, close to the pier body, of the left upper bracket (2) and the left lower bracket (4) is 50cm, and the distance between the side, close to the pier body, of the right upper bracket (5) and the right lower bracket (9) is 50 cm.
5. The continuous rigid frame # 0 block bracket preloading device of claim 1, wherein: and a 10mm gap is reserved at the upper end of the temporary support (7).
CN201921438072.9U 2019-08-30 2019-08-30 Continuous rigid frame 0# block bracket pre-pressing device Active CN210946510U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921438072.9U CN210946510U (en) 2019-08-30 2019-08-30 Continuous rigid frame 0# block bracket pre-pressing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921438072.9U CN210946510U (en) 2019-08-30 2019-08-30 Continuous rigid frame 0# block bracket pre-pressing device

Publications (1)

Publication Number Publication Date
CN210946510U true CN210946510U (en) 2020-07-07

Family

ID=71371647

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921438072.9U Active CN210946510U (en) 2019-08-30 2019-08-30 Continuous rigid frame 0# block bracket pre-pressing device

Country Status (1)

Country Link
CN (1) CN210946510U (en)

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