CN211772935U - Connecting device for anchoring front anchor point of hanging basket in cantilever construction - Google Patents
Connecting device for anchoring front anchor point of hanging basket in cantilever construction Download PDFInfo
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- CN211772935U CN211772935U CN202020036620.1U CN202020036620U CN211772935U CN 211772935 U CN211772935 U CN 211772935U CN 202020036620 U CN202020036620 U CN 202020036620U CN 211772935 U CN211772935 U CN 211772935U
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Abstract
The utility model discloses a connecting device for anchoring a front anchor point of a hanging basket during cantilever construction, which comprises an upper fixing plate and a lower fixing plate, wherein a main through hole is processed in the middle of the upper fixing plate, auxiliary through holes are respectively arranged on the upper fixing plates at two sides of the main through hole, a main screw thread hole is processed in the middle of the lower fixing plate, and auxiliary screw holes are respectively arranged on the lower fixing plates at two sides of the main screw thread hole; the top end of the main connecting rod penetrates through the main through hole and is mounted on the upper fixing plate through a main nut, and the bottom end of the main connecting rod is mounted on the lower fixing plate through a main threaded hole; the top end of the auxiliary connecting rod penetrates through the auxiliary through hole and is mounted on the upper fixing plate through the auxiliary nut, and the bottom end of the auxiliary connecting rod is mounted on the lower fixing plate through the matching of the anchor bolt and the auxiliary threaded hole. Each part has no complex structure, the processing is simple, and the manufacturing precision is high although the manufacturing cost is lower.
Description
Technical Field
The utility model belongs to the construction field relates to the cantilever construction, concretely relates to connecting device that anchor point anchor before hanging basket when being used for cantilever construction.
Background
The cantilever construction method is a construction method that working platforms are arranged on two sides of a bridge pier, and beam sections are poured or assembled to a midspan cantilever section by section in a balanced manner until a bridge span structure is closed. The working principle can be explained by three main working links of hanging basket displacement, construction beam section positioning (pouring or assembling) and construction beam section connection (tensioning prestress). The cantilever construction method has many outstanding advantages, can use no or few supports, does not influence navigation or traffic under the bridge during construction, is suitable for construction of a variable cross-section bridge structure, and has basically the same stress state during construction and after construction for the bridge with the pier top bearing the negative bending moment, thereby reducing or saving construction materials.
In the continuous rigid frame bridge concrete pouring process, a main truss of the hanging basket needs to be installed and fixed at a box girder web plate position, and a track needs to be anchored on box girder concrete. In the prior art, two methods are usually adopted to realize the anchoring of the hanging basket, one method is to reserve a pore channel on a box girder and arrange an inclined cushion block at the lower part of the reserved pore channel through finish rolling twisted steel bars to be anchored on a constructed girder body; one is to connect the finish rolling twisted steel and the vertical prestressed steel stretching anchorage together to realize the rear anchorage of the hanging basket. However, the existing rear anchor device has the following problems:
A. the reserved anchoring pore canal on the box girder must be ensured to be positioned correctly and vertical to the reserved pore canal, which is difficult to ensure in a construction site, and the reserved pore canal is easy to be blocked by sundries or concrete entering the pipe in the construction site, thereby causing construction inconvenience.
B. The adoption finish rolling twisted steel links together with vertical prestressing steel stretch-draw ground tackle, and the connector troublesome poeration, installation and dismantlement are all inconvenient, influence work efficiency.
Therefore, a firm, reliable, flexible and convenient method for anchoring the cradle is needed to solve the problem.
Disclosure of Invention
Not enough to prior art exists, the utility model aims to provide a the utility model provides a connecting device that anchor point anchor before hanging basket when being used for cantilever construction hangs basket anchor when solving among the prior art technical problem that hanging basket anchor connection reliability is low.
In order to solve the technical problem, the utility model discloses a following technical scheme realizes:
a connecting device for anchoring a front anchor point of a hanging basket during cantilever construction comprises an upper fixing plate and a lower fixing plate, wherein a main through hole is processed in the middle of the upper fixing plate, auxiliary through holes are respectively formed in the upper fixing plates on two sides of the main through hole, a main screw thread hole is processed in the middle of the lower fixing plate, and auxiliary screw holes are respectively formed in the lower fixing plates on two sides of the main screw thread hole;
the top end of the main connecting rod penetrates through the main through hole and is mounted on the upper fixing plate through a main nut, and the bottom end of the main connecting rod is mounted on the lower fixing plate through a main threaded hole;
the top end of the auxiliary connecting rod penetrates through the auxiliary through hole and is mounted on the upper fixing plate through the auxiliary nut, and the bottom end of the auxiliary connecting rod is mounted on the lower fixing plate through the matching of the anchor bolt and the auxiliary threaded hole.
The utility model discloses still have following technical characteristic:
the aperture of the main through hole is larger than that of the auxiliary through hole; the aperture of the main threaded hole is smaller than that of the auxiliary threaded hole.
The top surface of the anchor bolt is provided with an internal thread hole used for connecting the bottom end of the auxiliary connecting rod, and the lower part of the side wall of the anchor bolt is provided with an external thread used for connecting the auxiliary thread hole.
And external threads are arranged at the two ends of the main connecting rod and the auxiliary connecting rod.
The number of the main connecting rods is one, and the number of the auxiliary connecting rods is two.
Compared with the prior art, the utility model, following technological effect has:
in the connecting device for anchoring the front anchor point of the hanging basket, each part has no complex structure, the processing is simple, the manufacturing cost is low, but the manufacturing precision is high; the connecting device has reasonable integral structure design, simple and convenient installation and removal of parts, small volume and weight of the parts and convenient transportation and carrying; the connecting device has reasonable stress of the whole structure and is firm and reliable in use.
Drawings
Fig. 1 is a schematic overall structure diagram of a hanging basket anchoring device.
Fig. 2 is a schematic overall structure diagram of the connecting device anchored by the anchor points after the cradle.
Fig. 3 is a schematic view of the structure of the connector.
Fig. 4 is a schematic structural view of a cross section of the connector.
FIG. 5 is a schematic view of the components of the connector in assembly and disassembly
Fig. 6 is a structural schematic diagram of the connecting device for anchoring the front anchor point of the hanging basket.
Fig. 7 is a schematic diagram of the connection device anchored by the anchor point in the front of the hanging basket.
Fig. 8 is a schematic view of the arrangement of the anchoring device in construction.
The meaning of the individual reference symbols in the figures is: 1-hanging basket, 2-truss girder, 3-track, 4-connecting device anchored by anchor point at the back of hanging basket, 5-connecting device anchored by anchor point at the front of hanging basket, 6-transverse cushion block, 7-poured beam section, 8-beam section to be poured;
201-H type truss girder, 202-anchoring seat;
301-i-shaped track, 302-track gap;
401-shoulder pole beam, 402-rear anchor rod, 403-connector, 404-upper connecting shell, 405-lower connecting plate, 406-sleeve fixing block, 407-double thread sleeve and 408-through hole;
501-upper fixing plate, 502-lower fixing plate, 503-main through hole, 504-auxiliary through hole, 505-main thread screw hole, 506-auxiliary thread hole, 507-main connecting rod, 508-auxiliary connecting rod, 509-main nut, 510-auxiliary nut and 511-anchoring bolt.
The following examples are provided to explain the present invention in further detail.
Detailed Description
The following embodiments of the present invention are given, and it should be noted that the present invention is not limited to the following embodiments, and all the equivalent transformations made on the basis of the technical solution of the present application all fall into the protection scope of the present invention.
Example 1:
in this embodiment, a connecting device for rear anchor point anchoring of a cradle during cantilever construction is provided, as shown in fig. 2 to 5, including more than one carrying pole beam 401, the top end of a rear anchor rod 402 is respectively installed at both ends of each carrying pole beam 401, the bottom end of the rear anchor rod 402 passes through the bottom surface of the carrying pole beam 401 and extends downward, and a connector 403 is installed at the bottom end of the rear anchor rod 402;
the connector 403 comprises an upper connecting shell 404 with an open bottom, a lower connecting plate 405 is detachably mounted at the bottom of the upper connecting shell 404, a plurality of sleeve fixing blocks 406 are mounted in the upper connecting shell 404, the top end of a double-thread sleeve 407 is mounted on each sleeve fixing block 406, and the bottom end of the double-thread sleeve 407 penetrates through the bottom surface of the lower connecting plate 405.
As a preferable scheme of this embodiment, the bottom end of the rear anchor rod 402 is connected with the top end of the upper connecting shell 404 through a screw thread.
As a preferable scheme of this embodiment, an internal thread is disposed inside a top end pipe of the double-threaded sleeve 407, and an external thread is disposed outside a bottom end pipe of the double-threaded sleeve 407.
As a preferable scheme of this embodiment, the lower connecting plate 405 is provided with through holes 408 corresponding to the double-threaded sleeves 407 one to one, and the double-threaded sleeves 407 penetrate through the bottom surface of the lower connecting plate 405 through the through holes 408.
As a preferable scheme of this embodiment, the upper connecting shell 404 and the lower connecting plate 405 are connected by bolts.
As a preferable solution of this embodiment, there are two carrying pole beams 401; the number of the sleeve fixing blocks 406 is three.
The connecting device for anchoring the rear anchor point of the hanging basket can directly connect the hanging basket with the embedded high-strength steel bar, thereby realizing the rear anchor of the hanging basket. This connecting device safe and reliable, the structure is ingenious, easy dismounting, work efficiency is high, and is firm effectual, the simple operation, convenient and practical.
Example 2:
the embodiment provides a connecting device for anchoring a front anchor point of a cradle during cantilever construction, as shown in fig. 6 to 7, comprising an upper fixing plate 501 and a lower fixing plate 502, wherein a main through hole 503 is processed in the middle of the upper fixing plate 501, auxiliary through holes 504 are respectively arranged on the upper fixing plate 501 at two sides of the main through hole 503, a main screw threaded hole 505 is processed in the middle of the lower fixing plate 502, and auxiliary threaded holes 506 are respectively arranged on the lower fixing plate 502 at two sides of the main threaded hole 505;
the top end of the main connecting rod 507 passes through the main through hole 503 and the top end of the main connecting rod 507 is mounted on the upper fixing plate 501 through a main nut 509, and the bottom end of the main connecting rod 507 is mounted on the lower fixing plate 502 through a main threaded hole 505;
the top end of the secondary connecting rod 508 passes through the secondary through hole 504 and the top end of the secondary connecting rod 508 is mounted on the upper fixing plate 501 through a secondary nut 510, and the bottom end of the secondary connecting rod 508 is mounted on the lower fixing plate 502 through the matching of the anchor bolt 511 and the secondary threaded hole 506.
As a preferable solution of this embodiment, the aperture of the main through hole 503 is larger than the aperture of the sub through hole 504; the diameter of the primary threaded hole 505 is smaller than that of the secondary threaded hole 506.
As a preferable scheme of this embodiment, the top surface of the anchor bolt 511 is provided with an internal threaded hole for connecting the bottom end of the secondary connecting rod 508, and the lower portion of the side wall of the anchor bolt 511 is provided with an external thread for connecting the secondary threaded hole 506.
As a preferable scheme of this embodiment, both ends of the main connecting rod 507 and the auxiliary connecting rod 508 are provided with external threads.
As a preferable scheme of this embodiment, there are one main connecting rod 507 and two auxiliary connecting rods 508.
Example 3:
in this embodiment, an anchoring method for a cradle in cantilever construction is provided, as shown in fig. 1 to 8, a cradle 1 includes a truss 2 and a track 3, the truss 2 includes an H-shaped truss 201, and an anchoring seat 202 is fixedly sleeved on the H-shaped truss 201; the rail 3 comprises a pair of I-shaped rails 301 arranged in parallel, and a rail gap 302 is formed between the pair of I-shaped rails 301 arranged in parallel; the method adopts a connecting device 4 for anchoring the rear anchor point of the cradle to anchor a truss girder 2 of the rear anchor point of the cradle, and adopts a connecting device 5 for anchoring the front anchor point of the cradle to anchor a track 3 of the front anchor point of the cradle.
Specifically, the connecting device 4 for anchoring the rear anchor point of the cradle in the cantilever construction is the connecting device for anchoring the rear anchor point of the cradle in the embodiment 1.
Specifically, the connecting device 5 for anchoring the front anchor point of the cradle in the cantilever construction is the connecting device for anchoring the front anchor point of the cradle in the cantilever construction in embodiment 2.
The method specifically comprises the following steps:
step one, connecting the connector with the embedded ultrahigh-strength steel bars.
Step 1.1, sequentially screwing the bottom end of a double-thread sleeve 407 on a pre-embedded ultrahigh-strength steel bar reserved on a box girder;
step 1.2, sleeving a lower connecting plate 405 on a double-thread sleeve 408 through a through hole 407;
step 1.3, mounting a sleeve fixing block 406 at the top end of a double-thread sleeve 407, and clamping the sleeve fixing block 406 on the upper surface of a lower connecting plate 405;
step 1.4, mounting an upper connecting shell on a lower connecting plate;
anchoring the connector on the shoulder pole beam through a rear anchor pull rod:
connecting and screwing the bottom end of the rear anchor pull rod 402 with the top end of the upper connecting shell 404, then enabling the top end of the rear anchor pull rod 402 to penetrate through a gap in the middle of the shoulder pole beam 401 to be anchored by a nut, enabling the shoulder pole beam 401 to be tightly pressed on the anchoring seat 202 of the rear anchor point, and completing the anchoring of the rear anchor point of the cradle;
step three, arranging a lower fixing plate:
placing the lower fixing plate 502 into a groove pre-embedded with ultrahigh-strength steel bars, wherein the main threaded hole 505 and the auxiliary threaded hole 506 correspond to the pre-embedded steel bars respectively;
step four, installing a connecting rod:
mounting anchor bolt 511 in secondary bolt hole 506, connecting the bottom end of secondary connecting rod 508 with anchor bolt 511, and mounting the bottom end of primary connecting rod 507 directly in primary bolt hole 505;
step five, mounting an upper fixing plate:
after the main connecting rod 507 and the auxiliary connecting rod 508 penetrate through the rail gap 302 of the hanging basket, a plurality of transverse cushion blocks 6 are arranged between the top surface of the rail 3 and the upper fixing plate 501, the main connecting rod 507 penetrates through the main through hole 503 and is anchored by a main nut 509, the auxiliary connecting rod 508 penetrates through the auxiliary through hole 504 and is anchored by an auxiliary nut 510, the upper fixing plate 501 is tightly pressed on the transverse cushion blocks 6, and the anchoring of the front anchor point of the hanging basket is completed.
As a preferable scheme of this embodiment, there are three sleeve fixing blocks 406, two sleeve fixing blocks 406 are disposed below the sleeve fixing blocks 406, a gap for allowing a double-threaded sleeve 407 to pass through is disposed between the two sleeve fixing blocks 406 disposed below, and one sleeve fixing block 406 is stacked on the two sleeve fixing blocks 406 disposed below. Three sleeve fixing blocks 406 are arranged in a shape of Chinese character 'pin' and are clamped on the upper surface of the lower connecting plate 405 in an overlapping manner.
In the method of the embodiment, the hanging basket anchoring pore canal and the overlong prestressed reinforcement connecting section do not need to be reserved on the box girder, so that the problems that the connector is connected with the prestressed reinforcement tensioning anchorage device in a troublesome manner and the detachment is inconvenient are solved. The anchoring method fully utilizes the embedded high-strength steel bars to realize the anchoring of the cradle, the rear anchoring device and the front anchoring device are matched for use, so that the anchoring of the cradle is safer and more reliable, the anchoring devices are convenient to install and dismantle, the working efficiency is high, the method can be repeated and practical, the construction cost is effectively reduced, and the economic benefit is obviously improved.
Claims (5)
1. A connecting device for anchoring a front anchor point of a hanging basket during cantilever construction is characterized by comprising an upper fixing plate (501) and a lower fixing plate (502), wherein a main through hole (503) is processed in the middle of the upper fixing plate (501), auxiliary through holes (504) are respectively arranged on the upper fixing plate (501) on two sides of the main through hole (503), a main threaded hole (505) is processed in the middle of the lower fixing plate (502), and auxiliary threaded holes (506) are respectively arranged on the lower fixing plate (502) on two sides of the main threaded hole (505);
the top end of the main connecting rod (507) penetrates through the main through hole (503) and the top end of the main connecting rod (507) is installed on the upper fixing plate (501) through a main nut (509), and the bottom end of the main connecting rod (507) is installed on the lower fixing plate (502) through a main threaded hole (505);
the top end of the auxiliary connecting rod (508) penetrates through the auxiliary through hole (504) and the top end of the auxiliary connecting rod (508) is installed on the upper fixing plate (501) through an auxiliary nut (510), and the bottom end of the auxiliary connecting rod (508) is installed on the lower fixing plate (502) through the matching of the anchor bolt (511) and the auxiliary threaded hole (506).
2. The connecting device for the front anchor point anchoring of the cradle in the cantilever construction as recited in claim 1, wherein the aperture of the main through hole (503) is larger than that of the auxiliary through hole (504); the diameter of the main threaded hole (505) is smaller than that of the secondary threaded hole (506).
3. The connecting device for the front anchor point anchoring of the cradle during the cantilever construction as recited in claim 1, wherein the top surface of the anchor bolt (511) is provided with an internal threaded hole for connecting the bottom end of the secondary connecting rod (508), and the lower part of the side wall of the anchor bolt (511) is provided with an external thread for connecting the secondary threaded hole (506).
4. The connecting device for the front anchor point anchoring of the cradle in the cantilever construction as recited in claim 1, wherein both ends of the main connecting rod (507) and the auxiliary connecting rod (508) are provided with external threads.
5. The connecting device for the front anchor point anchoring of the cradle in the cantilever construction as recited in claim 1, wherein the number of the main connecting rods (507) is one, and the number of the auxiliary connecting rods (508) is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020036620.1U CN211772935U (en) | 2020-01-08 | 2020-01-08 | Connecting device for anchoring front anchor point of hanging basket in cantilever construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020036620.1U CN211772935U (en) | 2020-01-08 | 2020-01-08 | Connecting device for anchoring front anchor point of hanging basket in cantilever construction |
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| Publication Number | Publication Date |
|---|---|
| CN211772935U true CN211772935U (en) | 2020-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020036620.1U Active CN211772935U (en) | 2020-01-08 | 2020-01-08 | Connecting device for anchoring front anchor point of hanging basket in cantilever construction |
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| Country | Link |
|---|---|
| CN (1) | CN211772935U (en) |
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- 2020-01-08 CN CN202020036620.1U patent/CN211772935U/en active Active
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