CN215104787U - Cantilever cast-in-place bridge hanging basket and bottom die installation auxiliary device - Google Patents

Abstract

The utility model provides a basket and die block installation auxiliary device are hung to cast-in-place bridge of cantilever, belongs to the basket and die block installation technical field are hung to cast-in-place bridge of cantilever, including the symmetric distribution in hanging the installation auxiliary assembly at four corners of basket arris frame, every installation auxiliary assembly all includes braced system, jacking system and anchoring system, braced system is including being fixed in the hollow pedestal of hanging on the basket arris frame, the jacking system is including being fixed in the straight-through jack at hollow pedestal top and the promotion member of being connected with the die block, anchoring system is including setting up top anchor nut and the bottom anchor nut on promoting the member. The utility model discloses in, hang bottom support and the die block of basket and assemble on ground and accomplish and wholly lift by crane, reduce the activity duration that the high altitude was assembled, reduce the safety risk, simultaneously, hang the ground of basket and die block and assemble work and can with the 0# piece on hang basket rhombus frame assemble go on in step, reduce the process on the straight line time limit for a project, improve the efficiency of construction.

Description

Cantilever cast-in-place bridge hanging basket and bottom die installation auxiliary device

Technical Field

The utility model belongs to the technical field of cantilever cast-in-place bridge hangs basket and die block installation, a construction auxiliary assembly is related to, especially relate to a cantilever cast-in-place bridge hangs basket and die block installation auxiliary device.

Background

The hanging basket is the main equipment in cantilever construction, and can be divided into 4 types of truss type, inclined pull type, section steel type and mixed type according to the structural form. Comprehensively comparing the characteristics and the weight of the hanging baskets in various forms, the types of steel adopted, the construction process and the like according to the construction process requirements of the concrete cantilever and the requirements of design drawings on the hanging baskets; hanging basket design principle: the hanging basket has the advantages of light dead weight, simple structure, firmness, stability, convenience in forward movement and assembly and disassembly, strong reusability, small deformation after stress and the like, and the space under the hanging basket is sufficient, so that a large construction operation surface can be provided, and the construction operation of the steel bar formwork is facilitated.

The hanging basket installation of the upper structure of the traditional cantilever cast-in-place bridge at home and abroad is that after a hanging basket component is transported to a site, a crane is used for hanging the top surface of a No. 0 block for high-altitude assembly, the psychological quality requirement on constructors is extremely high in the assembly process, especially in the installation process of hanging a basket bottom component and a bottom die, because the bearing capacity of a common tower crane or the crane is limited, the hanging basket component is often lifted by the crane for high-altitude assembly, the high-altitude operation time is long, and the safety risk is extremely high.

Disclosure of Invention

In view of the defects of the prior art, the invention aims to provide a hanging basket of a cantilever cast-in-place bridge and a bottom die installation auxiliary device, which are used for solving the technical problems of long overhead operation time and high safety risk caused by the overhead assembly adopted in the hanging basket installation in the prior art.

In order to achieve the above and other related objects, the present invention provides a hanging basket and bottom mold installation assisting device for a cantilever cast-in-place bridge, comprising installation assisting assemblies symmetrically distributed at four corners of a hanging basket prismatic frame, wherein each installation assisting assembly comprises a supporting system, a jacking system and an anchoring system, the supporting system comprises a hollow pedestal fixed on the hanging basket prismatic frame, the jacking system comprises a through jack fixed at the top of the hollow pedestal and a lifting rod piece connected with the bottom mold, and the anchoring system comprises a top end anchoring nut and a bottom end anchoring nut arranged on the lifting rod piece.

Preferably, the hollow pedestal is formed by welding steel plates, and a top plate of the hollow pedestal is provided with a round hole.

Preferably, the hollow pedestal is welded on the hanging basket prismatic frame.

Preferably, the lifting rod piece is composed of a plurality of sections of threaded steel bars, and two adjacent sections of threaded steel bars are connected through a sleeve.

Preferably, the upper end of the lifting rod piece is positioned above the through jack, and the lower end of the lifting rod piece sequentially penetrates through the through jack and the hollow pedestal and then is connected with the bottom die.

Preferably, the bottom die is provided with a preformed hole, and the lifting rod passes through the preformed hole on the bottom die and is anchored by a nut.

Preferably, the top end anchoring nut is located above the feed-through jack, and the bottom end anchoring nut is located in the hollow pedestal.

As above, the utility model discloses a cast-in-place bridge of cantilever hangs basket and die block installation auxiliary device has following beneficial effect: the utility model discloses in, hang bottom support and the die block of basket and assemble on ground and accomplish and wholly lift by crane, reduce the activity duration that the high altitude was assembled, reduce the safety risk, simultaneously, hang the ground of basket and die block and assemble work and can with the 0# piece on hang basket rhombus frame assemble go on in step, reduce the process on the straight line time limit for a project, improve the efficiency of construction.

Drawings

Fig. 1 shows a front view of the present invention.

Fig. 2 shows a side view of the present invention.

Fig. 3 is a top view of the present invention.

Fig. 4 shows an enlarged schematic view at a.

Description of the element reference numerals

1-a through jack, 2-a lifting rod piece, 3-a top end anchoring nut, 4-a hollow pedestal, 5-a bottom end anchoring nut, 6-a bottom die, 7-a hanging basket prismatic frame and 8-a poured beam section.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

Please refer to fig. 1 to 4. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.

Referring to fig. 1-4, the invention provides a hanging basket and bottom die installation auxiliary device for a cantilever cast-in-place bridge, which comprises installation auxiliary assemblies symmetrically distributed at four corners of a hanging basket prismatic frame 7, each installation auxiliary assembly comprises a supporting system, a jacking system and an anchoring system, the supporting system comprises a hollow pedestal 4 fixed on the hanging basket prismatic frame 7, the jacking system comprises a through jack 1 fixed at the top of the hollow pedestal 4 and a lifting rod member 2 connected with a bottom die 6, the upper end of the lifting rod member 2 is positioned above the through jack 1, the lower end of the lifting rod member 2 sequentially penetrates through the through jack 1 and the hollow pedestal 4 and then is connected with the bottom die 6, the lifting rod member 2 is composed of a plurality of sections of threaded steel bars, and two adjacent sections of threaded steel bars are connected by a sleeve. The anchoring system comprises a top end anchoring nut 3 and a bottom end anchoring nut 5 arranged on the lifting rod 2. The top end anchoring nut 3 is positioned above the feed-through jack 1, and the bottom end anchoring nut 5 is positioned in the hollow pedestal 4.

When this embodiment uses, during cantilever cast-in-place bridge string basket and the 6 installation auxiliary device of die block actually used, will hang basket bottom support and die block 6 and assemble the completion earlier than ground, simultaneously, assemble and anchor string basket arris shape frame 7 well on the 0# piece of pouring beam section 8. Then use the sleeve to assemble and constantly transfer the twisted steel on the support, make the twisted steel pass through feed-through jack 1 and hollow pedestal 4 section by section, reach the hole that reserves with the twisted steel from the die block 6 and pass when the twisted steel passes through feed-through jack 1 and hollow pedestal 4 after reaching die block 6 to anchor with the nut. After the top anchoring nut 3 and the bottom anchoring nut 5 are screwed down and installed on the threaded steel bar, the four penetrating jacks 1 are started to slowly jack up, when the bottom anchoring nut 5 rises to the upper surface inside the hollow pedestal 4, jacking is suspended, the four bottom anchoring nuts 5 are manually screwed to the basket anchoring points respectively, then the penetrating jacks 1 are decompressed, meanwhile, the 4 top anchoring nuts 3 are lowered to the tops of the penetrating jacks 1, then the four penetrating jacks 1 are started to jack up again, the operation is circulated until the bottom die 6 is lifted to a preset height, and the threaded steel bar exceeding the jacks is synchronously dismounted in the jacking process. The fine adjustment of the cradle bottom die 6 in the subsequent cantilever pouring process can be easily realized by using the device. Therefore, the embodiment can realize that the bottom support of the cradle and the bottom die 6 are assembled on the ground and integrally lifted, the high-altitude assembling operation time is reduced, the safety risk is reduced, in addition, the ground assembling operation and the assembling of the rhombus frame of the cradle on the 0# block can be synchronously carried out, the process on the straight line construction period is reduced, and the construction efficiency is improved.

In this embodiment, the feed-through jack 1 in the jacking system provides power for lifting the cradle and the bottom die 6. The type and the size of the feed-through jack 1 can be selected according to actual needs.

The lifting rod piece 2 is composed of a plurality of sections of twisted steel bars, and two adjacent sections of twisted steel bars are connected through a sleeve. Twisted steel and sleeve must have sufficient intensity, guarantee to lift string basket and die block 6, prevent to promote in-process twisted steel fracture or the junction between two adjacent twisted steel appears droing and takes place dangerously, guarantee to hang the security of basket and the installation of die block 6. Simultaneously, still need carefully inspect the screw thread of twisted steel before using to guarantee the connection effect between twisted steel and top anchor nut 3 and bottom anchor nut 5.

In this embodiment, the hollow pedestal 4 is formed by welding steel plates and is used for placing the center-through jack 1. And a round hole is formed in the top plate of the hollow pedestal 4, so that the threaded steel bar can conveniently pass through and be anchored and connected with the bottom die 6. The hollow inside of hollow pedestal 4 can provide the space for the rising and falling of the anchor nut of bottom die 6 in the jacking process, thereby being convenient for lifting the hanging basket and the bottom die 6.

Hollow pedestal 4 welds on hanging basket arris shape frame 7, can guarantee braced system's stability to guarantee whole auxiliary device's stability. The connection mode between the hollow pedestal 4 and the hanging basket prismatic frame 7 is not limited to welding, and other connection modes capable of realizing stable connection between the hollow pedestal and the hanging basket prismatic frame can be adopted. Such as by bolting.

In this embodiment, the top anchor nut 3 in the anchoring system mainly serves to anchor the top end of the lifting rod 2 in the jacking process, and convert the jacking force of the through jack 1 into the lifting force of the bottom die 6; the bottom anchoring nut 5 is mainly used for fixing the lifting rod piece 2 and the bottom die 6 in the pressure relief process of the jack, so that the lifting rod piece and the bottom die do not descend along with the pressure relief of the center-penetrating jack 1.

In conclusion, the bottom support and the bottom die of the hanging basket are assembled on the ground and integrally lifted, so that the high-altitude assembling operation time is reduced, the safety risk is reduced, meanwhile, the ground assembling work of the hanging basket and the bottom die can be synchronously performed with the assembling of the diamond frame of the hanging basket on the No. 0 block, the process on the linear construction period is reduced, and the construction efficiency is improved. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims (7)

1. The utility model provides a basket and die block installation auxiliary device are hung to cast-in-place bridge of cantilever, its characterized in that: including the symmetric distribution in the installation auxiliary assembly who hangs basket arris shape frame (7) four corners, every installation auxiliary assembly all includes braced system, jacking system and anchor system, braced system is including being fixed in hollow pedestal (4) on hanging basket arris shape frame (7), the jacking system is including being fixed in punching jack (1) at hollow pedestal (4) top and promotion member (2) be connected with die block (6), anchor system is including setting up top anchor nut (3) and bottom anchor nut (5) on promoting member (2).

2. The cantilever cast-in-place bridge hanging basket and bottom die installation auxiliary device according to claim 1, characterized in that: the hollow pedestal (4) is formed by welding steel plates, and a top plate of the hollow pedestal (4) is provided with a round hole.

3. The cantilever cast-in-place bridge hanging basket and bottom die installation auxiliary device according to claim 1, characterized in that: the hollow pedestal (4) is welded on the hanging basket prismatic frame (7).

4. The cantilever cast-in-place bridge hanging basket and bottom die installation auxiliary device according to claim 1, characterized in that: the lifting rod piece (2) is composed of a plurality of sections of threaded steel bars, and the adjacent two sections of threaded steel bars are connected through a sleeve.

5. The cantilever cast-in-place bridge hanging basket and bottom die installation auxiliary device according to claim 1, characterized in that: the upper end of the lifting rod piece (2) is located above the through jack (1), and the lower end of the lifting rod piece (2) sequentially penetrates through the through jack (1) and the hollow pedestal (4) and then is connected with the bottom die (6).

6. The cantilever cast-in-place bridge hanging basket and bottom die installation auxiliary device according to claim 5, characterized in that: the bottom die (6) is provided with a preformed hole, and the lifting rod piece (2) is anchored by a nut after penetrating through the preformed hole in the bottom die (6).

7. The cantilever cast-in-place bridge hanging basket and bottom die installation auxiliary device according to claim 1, characterized in that: the top end anchoring nut (3) is located above the feed-through jack (1), and the bottom end anchoring nut (5) is located in the hollow pedestal (4).

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