Multifunctional lifting appliance capable of being rapidly installed and construction method thereof

Abstract

The invention discloses a multifunctional lifting appliance capable of being rapidly installed and a construction method thereof.The multifunctional lifting appliance comprises a lifting appliance body, a joint support and a formwork structure, and the lifting appliance body is used for hanging a prefabricated part between two completed main body structures; the lifting appliance body is supported on two completed main body structures and is converted into a supporting bracket, the joint bracket is detachably connected to the lifting appliance body and is used for cast-in-place supporting of a joint at the end part of a prefabricated part, and the template structure is arranged on the joint bracket and is used for supporting the cast-in-place of the joint at the end part of the prefabricated part. And a joint pouring space is formed among the template structure, the main body structure and the prefabricated part. The method has the advantages of being high in applicability, energy-saving, environment-friendly, capable of effectively saving cost, capable of accelerating the mounting and dismounting progress, convenient to transfer in the later period and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of temporary facilities for wharf construction. More specifically, the present invention relates to a quickly installable multi-functional lifting tool and its construction method. Background Art

[0002] In the wharf structure, in order to reduce the construction time of on-site adverse environment operations and accelerate the construction progress, a large number of concrete beam components adopt prefabrication technology. During the hoisting process, a large number of temporary facilities such as lifting tools, temporary support brackets for components, and cast-in-place joint support brackets are involved. In the traditional wharf construction technology, each temporary facility is set up separately. Among them, in complex geological or hydrological environments such as water, rock, and deep silt geology, the landing temporary support brackets have disadvantages such as high construction difficulty, high construction risk, and long construction period; for the non-landing corbel brackets, it is necessary to embed corbel embedded parts in the cast-in-place beam, which involves a lot of on-site welding operations, the construction quality is not easy to guarantee, the construction difficulty is large, the construction risk is high, and the reserved embedded parts are not easy to repair later, affecting the appearance quality of the structure. In view of the problems existing in the current wharf component hoisting construction technology and the limitations of the use environment, a quickly installable multi-functional lifting tool and its construction method are needed. Summary of the Invention

[0003] An object of the present invention is to provide a quickly installable multi-functional lifting tool and its construction method, which have the advantages of strong applicability, energy conservation and environmental protection, can effectively save costs, accelerate the installation and disassembly progress, and are convenient for later turnover.

[0004] To solve the above technical problems, the present invention provides a quickly installable multi-functional lifting tool, including a lifting tool body, a joint support, and a formwork structure. The lifting tool body is used to suspend precast components between two completed main structures, the lifting tool body is supported on the two completed main structures and converted into a support bracket, the joint support is detachably connected to the lifting tool body, the joint support is used for the cast-in-place support of the end joints of precast components, the formwork structure is arranged on the joint support, and a joint pouring space is formed between the formwork structure, the main structure, and the precast component.

[0005] Preferably, different numbers of cushion blocks are arranged between the lifting tool body and the top surfaces of the two completed main structures to adjust the height of the precast component.

[0006] Preferably, the lifting tool body includes a pair of cross beams arranged opposite and spaced apart and a connecting brace connecting the pair of cross beams into one body. The length of the pair of cross beams is greater than the distance between the two completed main structures so that the two ends of the pair of cross beams are supported on the two completed main structures. Upper lifting lugs are arranged on the top surfaces of the pair of cross beams, which are used to connect the hoisting equipment through steel wire ropes, and lower lifting lugs are arranged on the bottom surfaces of the pair of cross beams, which are connected to the precast component.

[0007] Preferably, a pair of joint brackets are oppositely arranged on both sides of a pair of cross beams, and each joint bracket includes an upper cushion beam detachably connected to the pair of cross beams and a lower cushion beam arranged below the precast member. The upper cushion beam and the lower cushion beam are connected into one body through a suspension rod and an anchoring device, and the formwork structure is arranged on the lower cushion beam.

[0008] Preferably, both the upper cushion beam and the lower cushion beam include a pair of beam bodies and a connecting brace connecting the pair of beam bodies into one body. The pair of beam bodies are perpendicular to the pair of cross beams, and both ends of the pair of beam bodies protrude out of the cross beams to form extension parts, and the suspension rod vertically passes through the extension parts of the cross beams.

[0009] Preferably, the formwork structure is a square timber and a bamboo plywood or a steel plate sequentially arranged on the lower cushion beam.

[0010] The invention also discloses a construction method of a quickly installable multifunctional lifting tool, which includes the following steps: Step 1, prefabricate a precast lifting tool body, an upper cushion beam, a lower cushion beam, a formwork structure, and a cushion block in advance to form an integral standard component; Step 2, connect a lifting device to an upper lifting ear, connect a lower lifting ear to a precast member, then suspend the precast member through the lifting device, and hoist it to a set position between two completed main structures; Step 3, support the lifting tool body on the top surfaces of two completed main structures, convert it into a support bracket, and increase or decrease cushion blocks between the lifting tool body and the top surfaces of the main structures according to the construction design height requirements to meet the construction design height requirements. After meeting the requirements, disconnect the lifting device from the upper lifting ear; Step 4, install the upper cushion beam and the lower cushion beam at the designed positions on both sides of the lifting tool body, and then connect the upper cushion beam and the lower cushion beam through a suspension rod; Step 5, install a formwork structure on the lower cushion beam to form a joint pouring space; Step 6, perform preloading on the assembled joint bracket. After meeting the corresponding specification requirements, remove the preloading load, tie steel bars, pour joint concrete, and complete the construction.

[0011] Preferably, in the step 1, standard components of different sizes are prefabricated for the lifting tool body, the upper cushion beam, the lower cushion beam, the formwork structure, and the cushion block.

[0012] Preferably, it further includes step 7: After the construction is completed, the process of removing the lifting tool is as follows: Remove the suspension rod and the steel wire rope corresponding to the lower lifting ear at the bottom of the lifting tool body for unloading, and then complete the removal of the joint bracket in reverse order according to the above installation sequence; then shift the lifting tool body, and store each standard component for later turnover use.

[0013] The invention has at least the following beneficial effects: 1. According to requirements, the present invention prefabricates assembled standard components of different sizes in a factory or on-site processing plant, ensuring the quality and precision of each component. The components are assembled on-site according to actual needs, including standard components such as a sling main body (upper lifting lug, lower lifting lug, connecting brace and crossbeam, which are welded into an integrated standard component in the factory), upper cushion beam (which has been welded into an integrated standard component through the connecting brace), lower cushion beam, suspension rod and its supporting anchoring device, formwork structure, and cushion block.

[0014] 2. During the lifting process of the prefabricated components of the present invention, the sling main body is used to suspend the prefabricated components and meet the requirements of load lifting. After being hoisted in place, the main structure is utilized to bear the force and is transformed into a temporary support bracket for supporting the prefabricated components. At the same time, by quickly adding cushion beams, suspension rods and formwork structures, and also using the bracket at the joint, the cast-in-place of the end joint of the prefabricated components is realized.

[0015] 3. The present invention has the advantages of simple and fast manufacturing, installation and construction. The weight of a single standard component is light, which is convenient for transportation and hoisting in complex environments. The degree of assembly is relatively high, and the main structure is utilized to bear the force, which is not restricted by terrain, geology and hydrological environment, avoiding adverse construction conditions, not requiring appearance repair after completion, and can adjust the height of the bracket within a certain range according to actual needs, enabling real-time monitoring and adjustment of the structure. It has the advantages of strong applicability, energy conservation and environmental protection, effectively saving costs, accelerating the installation and removal progress, and being convenient for later turnover.

[0016] Other advantages, objectives and features of the present invention will be partially reflected by the following description, and partially will also be understood by those skilled in the art through the research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of the lifting process of the sling main body of the present invention; Figure 2 It is a front elevation structural diagram of the sling main body of the present invention being transformed into a support bracket; Figure 3 It is a plan structural diagram of the sling main body of the present invention being transformed into a support bracket; Figure 4 It is a cross-sectional view of the sling main body of the present invention being transformed into a support bracket, Figure 2 sectional view 1-1 therein; Figure 5 It is a cross-sectional view of the lifting process of the sling main body of the present invention, Figure 2 sectional view 2-2 therein; Figure 6 It is a three-dimensional structural diagram of the sling main body of the present invention being transformed into a support bracket.

[0018] Description of the reference numerals: 1. Crossbeam, 2. Connecting brace, 3. Upper lifting lug, 4. Lower lifting lug, 5. Prefabricated component, 6. Steel wire rope, 7. Cushion block, 8. Upper cushion beam, 9. Lower cushion beam, 10. Suspender, 11. Anchoring device, 12. Formwork structure, 13. Connecting brace, 14. Shackle, 15. Main structure, 16. Cast-in-place joint. Detailed implementation manners

[0019] In order to better understand the purpose, structure and function of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings, so that those skilled in the art can implement it according to the description in the specification.

[0020] It should be noted that the experimental methods described in the following implementation manners are all conventional methods unless otherwise specified, and the reagents and materials can be obtained from commercial channels unless otherwise specified; in the description of the present invention, the terms "horizontal", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0021] As Figures 1 to 6 As shown, the present invention provides a quickly installable multi-functional lifting tool, including a lifting tool body, a joint support and a formwork structure 12. The lifting tool body is used for hanging a prefabricated component 5 between two completed main structures 15. The lifting tool body is supported on the two completed main structures and converted into a temporary support bracket. The joint support is detachably connected to the lifting tool body. The joint support is used for the cast-in-place support of the end joint of the prefabricated component. The formwork structure is arranged on the joint support. A joint pouring space is formed between the formwork structure, the main structure and the prefabricated component. The prefabricated component is a precast beam prefabricated in advance, and the main structure is a beam that has been constructed.

[0022] In another technical solution, different numbers of cushion blocks 7 are arranged between the lifting tool body and the top surfaces of the two completed main structures to adjust the height of the prefabricated component. The cushion blocks can be set as multiple standard cushion blocks with different thicknesses.

[0023] In another technical solution, the lifting tool body includes a pair of crossbeams 1 arranged opposite to and spaced apart from each other and a connecting brace 2 connecting the pair of crossbeams into one body. The length of the pair of crossbeams 1 is greater than the distance between the two completed main structures 15 so that both ends of the pair of crossbeams 1 are supported on the two completed main structures 15. Upper lifting lugs 3 are arranged on the top surfaces of the pair of crossbeams, which are used to connect a hoisting device through a steel wire rope 6. Lower lifting lugs 4 are arranged on the bottom surfaces of the pair of crossbeams, which are connected to the prefabricated component 5.

[0024] The spreader body is prefabricated in advance as an integral structure. The height is adjusted by setting cushion blocks between the cross beam and the main structure, which also avoids damaging the main structure when the cross beam is directly placed on the main structure. Four upper lifting lugs and lower lifting lugs, which are rectangular and symmetrically arranged along the center of the pair of cross beams, can be selectively arranged on the top and bottom surfaces of the pair of cross beams. They are all connected to the corresponding lifting equipment or precast components by setting shackles 14 and steel wire ropes 6 to ensure the stability of the hoisting and the smoothness of the position of the precast components.

[0025] In another technical solution, a pair of joint supports are oppositely arranged on both sides of the pair of cross beams, and each joint support includes an upper cushion beam 8 detachably connected to the pair of cross beams and a lower cushion beam 9 arranged under the precast component. The upper cushion beam and the lower cushion beam are connected into one body by suspension rods 10 and anchoring devices 11, and the formwork structure is arranged on the lower cushion beam. After the joint supports are set, the joint pouring space is completely covered to facilitate the setting of the formwork structure. The formwork structure is a square timber and a bamboo plywood or a steel plate sequentially arranged on the lower cushion beam.

[0026] In another technical solution, both the upper cushion beam and the lower cushion beam include a pair of beam bodies and a connecting brace 13 connecting the pair of beam bodies into one body. The pair of beam bodies are perpendicular to the pair of cross beams, and both ends of the pair of beam bodies protrude outside the cross beams to form extension parts. The suspension rods vertically pass through the extension parts of the cross beams, and four suspension rods are arranged corresponding to each joint support.

[0027] The present invention also provides a construction method for a quickly installable multifunctional spreader, which is characterized by including the following steps: Step 1: According to needs, prefabricate different-sized assembled standard components in advance in the factory or on site to ensure the quality and accuracy of each component. Assemble them on site according to actual requirements, including the spreader body (upper lifting lugs, lower lifting lugs, connecting braces, and cross beams, welded into an integral standard part in the factory), upper cushion beam (welded into an integral standard part through the connecting brace), lower cushion beam, formwork structure, suspension rods and their supporting anchoring devices, cushion blocks, etc., to form an overall standard part; Step 2: Use the lifting equipment, supporting steel wire ropes and shackles to connect the lifting equipment to the upper lifting lugs, connect the lower lifting lugs to the precast components, and then hang the precast components through the lifting equipment and meet the requirements of load lifting and transporting, and transport them to the set position between the two completed main structures on site; Step 3: Support the spreader body on the top surfaces of the two completed main structures and convert it into a support bracket. The precast component is still suspended at the bottom of the spreader body for supporting the precast component. According to the construction design height requirements, increase or decrease cushion blocks at the support between the spreader body and the top surface of the main structure to meet the construction design height requirements. After meeting the requirements, disconnect the connection between the lifting equipment and the upper lifting lugs, that is, disconnect the upper steel wire rope, the lifting equipment releases the hook, and the lifting equipment is displaced; Step 4: Install the upper cushion beam and the lower cushion beam at the designed positions on both sides of the sling body. The upper cushion beam is installed above the sling crossbeam and is bolted to the crossbeam for quick installation and disassembly. Then connect the upper cushion beam and the lower cushion beam through the suspension rod. Using the suspension rod and the corresponding anchoring device, install the lower cushion beam, and adjust the length of the suspension rod by the anchoring device to realize real-time monitoring and adjustment of the stress of the support, forming an overall stress-bearing system. Step 5: Install the formwork structure, as well as ancillary facilities such as walkways and railings on the lower cushion beam to form a joint pouring space. Step 6: Perform preloading on the assembled joint support. After meeting the corresponding specification requirements, remove the preloading load, tie the steel bars, and pour the joint concrete to form the cast-in-place joint 16, completing the construction.

[0028] Step 7: After the construction is completed, the process of removing the sling is as follows: Remove the wire ropes corresponding to the suspension rod and the lower lifting lug at the bottom of the sling body for unloading, and then reverse the installation sequence above to complete the removal of the joint support; then shift the sling body and store each standard part, that is, transport each standard component to a fixed place for storage for later turnover use.

[0029] It can be understood that the present invention is described through some embodiments. As is known to those skilled in the art, without departing from the spirit and scope of the present invention, various changes or equivalent replacements can be made to these features and embodiments. Although the embodiments of the present invention are disclosed as above, it is not limited to only the applications listed in the specification and the embodiments. It can be fully applied to various fields suitable for the present invention. For those familiar with the field, additional modifications can be easily achieved. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present invention is not limited to the specific details and the illustrated examples here.

Claims

1. A multifunctional sling that can be quickly installed, characterized in that: It includes a hanger body, a joint bracket and a template structure. The hanger body is used to hang prefabricated components between two completed main structures. The hanger body is supported on the two completed main structures and converted into a supporting bracket. The joint bracket is detachably connected to the hanger body. The joint bracket is used for cast-in-place support of the end joints of the prefabricated components. The template structure is arranged on the joint bracket. A joint casting space is formed between the template structure, the main structure and the prefabricated components.

2. The multifunctional sling capable of rapid installation as claimed in claim 1, characterized in that: Different numbers of cushion blocks are arranged between the hanger body and the top surfaces of the two completed main structures to adjust the height of the prefabricated components.

3. The multifunctional sling capable of rapid installation according to claim 1 or 2, characterized in that: The sling body includes a pair of beams that are opposite to each other and spaced apart and a connecting support that connects the pair of beams into one. The length of the pair of beams is greater than the spacing between the two completed main structures so that both ends of the pair of beams are supported on the two completed main structures. The top surfaces of the pair of beams are provided with upper lifting ears, which are used to connect the lifting equipment through steel wire ropes. The bottom surfaces of the pair of beams are provided with lower lifting ears, which are connected to prefabricated components.

4. The multifunctional sling capable of rapid installation as claimed in claim 3, characterized in that: The joint brackets are arranged in a pair on both sides of a pair of cross beams, and each joint bracket includes an upper pad beam that is detachably connected to the pair of cross beams and a lower pad beam that is arranged below the prefabricated component. The upper pad beam and the lower pad beam are connected as a whole through a hanger and an anchoring device, and the template structure is arranged on the lower pad beam.

5. The multifunctional sling capable of rapid installation as claimed in claim 4, characterized in that: The upper cushion beam and the lower cushion beam each include a pair of beam bodies and a connecting support connecting the pair of beam bodies into one body. The pair of beam bodies are arranged perpendicular to the pair of cross beams. Both ends of the pair of beam bodies protrude from the cross beams to form extensions. The suspension rod vertically passes through the extensions of the cross beams.

6. The multifunctional sling capable of rapid installation as claimed in claim 4, characterized in that: The template structure is square wood and bamboo plywood or steel plate which are sequentially arranged on the lower beam.

7. A construction method for quickly installing a multifunctional sling, characterized in that: The steps include: Step 1: Prefabricate the hanger body, upper beam, lower beam, template structure, and pad in advance to form an integrated standard part; Step 2: Connect the lifting equipment to the upper lifting lug, connect the lower lifting lug to the prefabricated component, and then hang the prefabricated component by the lifting equipment and lift it to the set position between the two completed main structures; Step 3: Support the main body of the sling on the top surfaces of the two completed main structures and convert it into a supporting bracket. According to the construction design height requirements, add or reduce pads between the main body of the sling and the top surface of the main structure to meet the construction design height requirements. After meeting the requirements, release the connection between the lifting equipment and the upper lifting lug; Step 4: Install the upper pad beam and the lower pad beam at the designed positions on both sides of the sling body, and then connect the upper pad beam and the lower pad beam through the sling rod; Step 5: Install the formwork structure on the lower beam to form a joint casting space; Step 6: Pre-stress the assembled joint bracket. After meeting the relevant specifications, remove the pre-stress load, tie the steel bars, pour the joint concrete, and complete the construction.

8. The construction method for rapidly installing a multifunctional sling according to claim 7, characterized in that: In the step 1, the sling body, the upper pad beam, the lower pad beam, the template structure and the pad block are prefabricated as standard parts of different sizes.

9. The construction method for rapidly installing a multifunctional sling according to claim 7, characterized in that: It also includes step seven: after the construction is completed, the process of dismantling the sling is as follows: remove the wire rope corresponding to the lower lifting ear at the bottom of the sling and the main body of the sling to unload, and then remove the joint bracket in reverse order according to the above installation; then move the main body of the sling and store the standard parts for later turnover.

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