A device for assisting in the removal of a reinforced concrete support and a method of using the same

Abstract

The application discloses an auxiliary device for dismantling and replacing a reinforced concrete support and a use method thereof. The auxiliary device comprises a fixing base slidably fixed on a hoisting device, a supporting arm for assisting support, a telescopic arm with adjustable length, and a cutting device for cutting the reinforced concrete support. The supporting arm is transversely arranged on one side of the top of the fixing base. The telescopic arm is vertically arranged downward at one end of the supporting arm away from the fixing base. The cutting device is arranged at the telescopic end of the telescopic arm. The application can assist the hoisting device in dismantling and replacing the reinforced concrete support of a prefabricated station, greatly accelerates the working efficiency of dismantling and replacing the reinforced concrete support, is favorable for shortening the construction period, and has strong applicability.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of building technology, in particular to a kind of auxiliary device of dismantling and replacing reinforced concrete support and its use method. BACKGROUND

[0002] With the progress of city modernization, traffic in our country is more and more congested, so subway building occupies a higher and higher proportion in city traffic. At the same time, in the construction process of subway station, the foundation pit needs to be excavated first, and the foundation pit needs to be supported.

[0003] Reinforced concrete support structure has been widely used because of its low cost, convenient construction, large structural stiffness, good integrity, flexible layout and adaptability to different shaped foundation pits, etc. It can avoid displacement of foundation pit caused by node loosening, and has high safety. However, after the main structure of subway station is constructed, the concrete support needs to be removed and replaced with steel support. How to safely and quickly remove the reinforced concrete support structure is a big problem.

[0004] There are mainly two kinds of concrete support beam removal methods commonly used in the prior art. One is to cut manually with cutting tools, and the other is to cut with a rope saw installed on the concrete support beam. Both of these two cutting methods need the cooperation of hoisting tools (such as gantry crane) to realize the hoisting and external transportation of beam body. Not only will it occupy hoisting equipment for a long time, but also will be limited by hoisting distance, which has low work efficiency and is not conducive to shortening the construction period. SUMMARY

[0005] In order to overcome the problems of the existing concrete support beam removal technology, such as the need for the cooperation of hoisting tools to realize the hoisting and external transportation of beam body, the long-time occupation of hoisting equipment, the limitation of hoisting distance, low work efficiency and the difficulty in shortening the construction period, the present application provides a kind of auxiliary device for dismantling and replacing reinforced concrete support and its use method.

[0006] The technical scheme of the present application is as follows:

[0007] In one aspect, the present application provides an auxiliary device for dismantling and replacing reinforced concrete support, comprising:

[0008] A fixed base slidably fixed on a hoisting equipment;

[0009] A support arm for auxiliary support, the support arm is transversely arranged on one side of the top of the fixed base;

[0010] A telescopic arm with adjustable length, the telescopic arm is vertically arranged downward at one end of the support arm away from the fixed base;

[0011] The cutting device for cutting the reinforced concrete support is arranged at the telescopic end of the telescopic arm.

[0012] According to the above scheme, the auxiliary device for disassembling and replacing the reinforced concrete support, the fixed base comprises a steel shell, two moving devices arranged on the both sides of the inner top wall of the steel shell respectively, two locking devices arranged on the both sides of the bottom of the steel shell respectively, and a vertical support arranged on the top of the steel shell.

[0013] Further, the steel shell comprises a top plate and two inwardly arranged L-shaped side plates, and the two L-shaped side plates are connected below the left and right sides of the top plate by bolts respectively.

[0014] Further, the moving device comprises a steel groove and a steel wheel arranged at the bottom of the steel groove.

[0015] Further, the steel wheel is connected with a hub motor, the hub motor is connected with a motor controller, and the motor controller is connected with a matching wireless remote controller through a wireless communication module.

[0016] Further, the connecting part of the steel shell and the locking device is provided with a clamping groove parallel to the length direction of the steel shell, and the locking device can slide in the clamping groove.

[0017] Further, the locking device is connected with a matching wireless remote controller through a wireless communication module.

[0018] Further, the support arm comprises a transverse support, a first rotating tray and a second rotating tray, one end of the transverse support is movably connected with the top of the vertical support through the first rotating tray, and the other end of the transverse support is movably connected with the fixed end of the telescopic arm through the second rotating tray.

[0019] Further, the first rotating tray is connected with the top of the vertical support through a bearing, one end of the transverse support is welded and fixed with the first rotating tray, the second rotating tray is movably connected with the fixed end of the telescopic arm through a bearing, and the other end of the transverse support is welded and fixed with the second rotating tray.

[0020] Further, the transverse support is made of rigid material.

[0021] According to the auxiliary device for dismantling and replacing the reinforced concrete support, the cutting device comprises a wire saw motor, a wire saw chain and an electromagnet bottom plate, the wire saw motor is connected with the telescopic end of the telescopic arm, the wire saw chain is detachably connected with the driving end of the wire saw motor, and the electromagnet bottom plate is connected with the bottom of the wire saw motor.

[0022] In another aspect, the application provides a method for using the auxiliary device, which applies the auxiliary device for dismantling and replacing the reinforced concrete support, and comprises the following steps:

[0023] Step S1, moving the hoisting equipment to a parking position and installing the auxiliary device on the hoisting equipment;

[0024] Step S2, moving the hoisting equipment to the vicinity of the reinforced concrete support to be dismantled, and moving the auxiliary device above the reinforced concrete support to be dismantled through the moving device;

[0025] Step S3, placing the electromagnet bottom plate of the cutting device on the reinforced concrete support to be dismantled through the telescopic arm;

[0026] Step S4, temporarily fixing the two ends of the reinforced concrete support to be dismantled by the hoisting equipment through the hoisting rope;

[0027] Step S5, installing the wire saw chain and allowing the wire saw chain to pass around the reinforced concrete support to be dismantled;

[0028] Step S6, starting the wire saw motor, retracting the telescopic arm, and dismantling the reinforced concrete support;

[0029] Step S7, hoisting the dismantled reinforced concrete support to the concrete support beam pile position through the hoisting equipment;

[0030] Step S8, hoisting the steel support to the disengagement position through the hoisting equipment;

[0031] Step S9, removing the wire saw chain, turning off the wire saw motor, turning on the electromagnet bottom plate, and completing the installation of the steel support by the auxiliary hoisting equipment.

[0032] According to the method for using the auxiliary device, the method further comprises:

[0033] Step S10, after the installation of the steel support is completed, retracting the telescopic arm, retracting the telescopic arm to the horizontal support through the second rotating tray, retracting the horizontal support to the vertical support through the first rotating tray, and finally moving the hoisting equipment to the parking position.

[0034] Compared with the prior art, the auxiliary device for dismantling and replacing the reinforced concrete support has the following beneficial effects:

[0035] The auxiliary device provided by the application can assist the hoisting equipment in disassembling and assembling the reinforced concrete support of the station, greatly improves the work efficiency of disassembling and assembling the reinforced concrete support, shortens the construction period, is not limited by the hoisting distance of the hoisting equipment, has strong applicability, ensures the safety of the construction personnel, and reduces the labor intensity of the construction personnel. BRIEF DESCRIPTION OF DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0037] Figure 1 Structure diagram of the application for cutting reinforced concrete support;

[0038] Figure 2 Structure diagram of the application for cutting reinforced concrete support from another perspective;

[0039] Figure 3 Structure diagram of the application for assisting in hoisting steel support;

[0040] Figure 4 Structure diagram of the application for installing on the hoisting equipment;

[0041] Figure 5 Front view of the application for installing on the upper flange of the I-beam on one side of the hoisting equipment.

[0042] In the drawings,

[0043] 1, auxiliary device; 11, fixed base; 111, steel shell; 1111, clamping groove; 112, moving device; 1121, steel groove; 1122, steel wheel; 113, locking device; 114, vertical support; 12, support arm; 121, horizontal support; 122, first rotating tray; 123, second rotating tray; 13, telescopic arm; 14, cutting device; 141, rope saw motor; 142, rope saw chain; 143, electromagnet bottom plate;

[0044] 2, hoisting equipment; 21, support I-beam; 211, upper flange;

[0045] 3, reinforced concrete support;

[0046] 4, steel support. Embodiment

[0047] In order to make the technical problems to be solved by the present application, technical solutions and beneficial effects clearer, the present application will be further described in detail below in combination with the drawings and embodiments. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. It is declared at the same time that the following described embodiments are only used to explain the present application, and do not limit the present application.

[0048] It should be noted that the terms "mounting", "setting", "connecting", "fixing" and the like should be understood broadly, for example, can be fixed connection, or detachable connection, or integrated; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the product of the application is used, or the orientation or positional relationship commonly understood by those skilled in the art, or the orientation or positional relationship commonly placed when the product of the application is used, which is only for the convenience of describing the present application and simplifying the description, and is not intended to indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. The terms "first", "second" are only used for the purpose of convenience, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features.

[0049] Please refer to Figures 1 to 5 The embodiment provides an auxiliary device for dismantling and replacing a reinforced concrete support, which is used for assisting a hoisting device 2 in dismantling and replacing a reinforced concrete support 3, wherein the hoisting device 2 assisted is a commonly used gantry crane. The auxiliary device 1 comprises a fixed base 11 slidably fixed on the hoisting device 2, a supporting arm 12 for assisting support, a telescopic arm 13 with adjustable length, and a cutting device 14 for cutting the reinforced concrete support 3, the supporting arm 12 is transversely arranged on one side of the top of the fixed base 11, the telescopic arm 13 is vertically arranged downward at one end of the supporting arm 12 away from the fixed base 11, and the cutting device 14 is arranged at the telescopic end of the telescopic arm 13, the telescopic arm 13 drives the cutting device 14 to move up and down, so as to cut the reinforced concrete support 3.

[0050] The fixed base 11 comprises a steel shell 111, two moving devices 112 respectively arranged on both sides of the top wall inside the steel shell 111, two locking devices 113 respectively arranged on both sides of the bottom of the steel shell 111, and a vertical support 114 arranged on the top of the steel shell 111. The steel shell 111 is used to be sleeved on the upper flange plate 211 of one side of the supporting I-beam 21 of the hoisting equipment 2. The supporting arm 12 is transversely arranged on one side of the top of the vertical support 114. The vertical support 114 is connected with the steel shell 111 by welding. The steel shell 111 can slide along the length direction of the upper flange plate 211 of the supporting I-beam 21 through the moving device 112, so as to adjust the position of the auxiliary device 1 on the hoisting equipment 2. The steel shell 111 can be locked on the upper flange plate 211 of the supporting I-beam 21 through the locking device 113, so as to avoid displacement of the auxiliary device 1 during operation.

[0051] In order to facilitate installation, the steel shell 111 can be divided into three parts, including a top plate and two inwardly arranged L-shaped side plates. The two L-shaped side plates are connected below the left and right sides of the top plate by bolts, realizing assembly type installation. Among them, the two moving devices 112 are installed on both sides of the bottom of the top plate, and one locking device 113 is installed on the bottom of each of the two L-shaped side plates. When the auxiliary device 1 is installed on the hoisting equipment 2, the assembly of the steel shell 111 is carried out first. The top plate, the left and right L-shaped side plates of the steel shell 111 are assembled to the upper flange plate 211 of one side of the supporting I-beam 21 of the hoisting equipment 2, and then the vertical support 114, the supporting arm 12, the telescopic arm 13 and the cutting device 14 are installed in sequence.

[0052] Please refer to Figure 2 In the embodiment, the moving device 112 comprises a steel groove 1121 and at least two front and rear side-by-side steel wheels 1122 arranged at the bottom of the steel groove 1121. After the steel shell 111 is installed on the upper flange plate 211 of one side of the supporting I-beam 21 of the hoisting equipment 2, the steel shell 111 can slide along the length direction of the upper flange plate 211 through the steel wheels 1122 at the bottom of the steel groove 1121, so as to adjust the position of the auxiliary device 1.

[0053] Further, in an embodiment, in order to realize remote control of the sliding of the steel shell 111, the steel wheel 1122 is connected with a hub motor, the hub motor is connected with a motor controller, and the motor controller is connected with a matching wireless remote controller through a wireless communication module. After the steel shell 111 is installed on the upper flange plate 211 of one side of the supporting I-beam 21 of the hoisting equipment 2, the construction personnel can remotely control the hub motor to start through the matching wireless remote controller, and then control the steel wheel 1122 to roll through the hub motor, so as to adjust the position of the auxiliary device 1, thereby avoiding the need to adjust the position of the auxiliary device 1 by artificial means, which can speed up the construction efficiency and save labor cost.

[0054] Please refer to Figure 1 , Figure 2 In order to ensure the stability of the locking device, in the embodiment, a clamping groove 1111 parallel to the length direction of the steel shell 111 is arranged at the connecting position of the steel shell 111 and the locking device 113, and the locking device 113 can slide in the clamping groove 1111 to adapt to different sizes of the supporting I-beam 21. Specifically, in an embodiment, the locking device 113 has a screwing brake device that can slide in the clamping groove 1111, and the steel shell 111 can be locked on the supporting I-beam 21 by the screwing brake device.

[0055] Further, in an embodiment, in order to remotely control the position of the steel shell 111, the locking device 113 is connected with a matching wireless remote controller through a wireless communication module. When the steel shell 111 is adjusted to a specified position by the moving device 112, the construction personnel can remotely control the locking device 113 to start through the matching wireless remote controller, and then lock the steel shell 111 on the specified position through the locking device 113, so as to avoid displacement of the auxiliary device 1 during operation.

[0056] Please refer to Figure 1 , Figure 2 In the embodiment, the supporting arm 12 includes a transverse support 121, a first rotating tray 122 and a second rotating tray 123. The transverse support 121 is made of rigid material, one end of the transverse support 121 is movably connected with the top of the vertical support 114 through the first rotating tray 122, and the other end of the transverse support 121 is movably connected with the fixed end of the telescopic arm 13 through the second rotating tray 123. Specifically, the first rotating tray 122 is connected with the top of the vertical support 114 through a bearing, the first rotating tray 122 is welded and fixed with one end of the transverse support 121, the second rotating tray 123 is movably connected with the fixed end of the telescopic arm 13 through a bearing, and the second rotating tray 123 is welded and fixed with the other end of the transverse support 121. Through the above-mentioned supporting arm 12, the telescopic arm 13 can be retracted to the transverse support 121 through the second rotating tray 123 after the reinforced concrete support 3 is disassembled and replaced, and the telescopic arm 13 can be retracted to the vertical support 114 through the first rotating tray 122, so as to avoid the influence of the auxiliary device 1 on the subsequent hoisting operation of the hoisting equipment 2.

[0057] In the embodiment, the telescopic arm 13 is composed of a hydraulic device, and the up and down movement of the cutting position can be controlled.

[0058] Please refer to Figures 1 to 3In the embodiment, the cutting device 14 includes a wire saw motor 141, a wire saw chain 142, and an electromagnet base plate 143. The wire saw motor 141 is connected to the telescopic end of the telescopic arm 13. The wire saw chain 142 is detachably connected to the driving end of the wire saw motor 141. The electromagnet base plate 143 is connected to the bottom of the wire saw motor 141. When the wire saw chain 142 is connected to the driving end of the wire saw motor 141 around the reinforced concrete support 3 to be removed, the wire saw motor 141 can drive the wire saw chain 142 to rotate after being started, and the reinforced concrete support 3 can be cut by cooperating with the contraction of the telescopic arm 13. The electromagnet base plate 143 is used to assist the hoisting device 2 to install the steel support 4. After the reinforced concrete support 3 is removed, the wire saw chain 142 is removed, and the electromagnet base plate 143 is started. The steel support 4 can be fixed by magnetic attraction, and the hoisting device 2 can assist the hoisting device 2 to remove and replace the reinforced concrete support 3. The electromagnet base plate 143 can prevent the steel support 4 from shaking during hoisting and installation, effectively improve the installation efficiency of the steel support 4, and improve the construction quality.

[0059] In summary, the auxiliary device 1 provided in the embodiment can assist the hoisting device 2 to remove and replace the reinforced concrete support 3 of the prefabricated station, greatly improve the work efficiency of removing and replacing the reinforced concrete support 3, shorten the construction period, and not be limited by the hoisting distance of the hoisting device 2, have strong applicability, can ensure the safety of construction personnel, and reduce the labor intensity of construction personnel.

[0060] The use method of the auxiliary device for removing and replacing the reinforced concrete support includes the following steps.

[0061] Step S1, move the hoisting device 2 to the parking position, and install the auxiliary device 1 on the upper flange plate 211 of one side of the supporting I-beam 21 of the hoisting device 2. Since the steel shell 111 is divided into three parts, including a top plate and two inwardly arranged L-shaped side plates, when the auxiliary device 1 is installed, the top plate, the left and right L-shaped side plates of the steel shell 111 are assembled on the upper flange plate 211 of one side of the supporting I-beam 21 of the hoisting device 2, and then the vertical support 114, the support arm 12, the telescopic arm 13, and the cutting device 14 are installed in sequence. In the above manner, the auxiliary device 1 can be quickly installed on the hoisting device 2.

[0062] Step S2, move the hoisting device 2 to the vicinity of the reinforced concrete 3 support to be removed, move the auxiliary device 1 to the upper side of the reinforced concrete support 3 to be removed through the moving device 112, and lock the position of the auxiliary device 1 through the locking device 113 to avoid displacement of the auxiliary device 1 during operation and affect the subsequent cutting operation of the reinforced concrete support 3.

[0063] Step S3, place the electromagnet bottom plate 143 of the cutting device 14 on the reinforced concrete support 3 to be removed through the telescopic arm 13.

[0064] Step S4, the hoisting device 2 temporarily fixes the two ends of the reinforced concrete support 3 to be removed through the hoisting rope, prevents the reinforced concrete support 3 from falling during construction, and ensures safe construction.

[0065] Step S5, install the rope saw chain 142 and make the rope saw chain 142 pass around the reinforced concrete support 3 to be removed.

[0066] Step S6, start the rope saw motor 141, the rope saw motor 141 drives the rope saw chain 142 to rotate, cooperates with the contraction of the telescopic arm 13 to cut the reinforced concrete support 3, and removes the reinforced concrete support 3.

[0067] Step S7, hoist the removed reinforced concrete support 3 to the concrete support beam pile position through the hoisting device 2.

[0068] Step S8, hoist the steel support 4 to the disengagement position through the hoisting device 2.

[0069] Step S9, remove the rope saw chain 142, turn off the rope saw motor 141, turn on the electromagnet bottom plate 143, and fix the steel support 4 through magnetic attraction, which can avoid shaking of the steel support 4 during hoisting and installation, and assist the hoisting device 2 to complete the installation of the steel support 4, thereby effectively improving the installation efficiency and construction quality of the steel support 4.

[0070] Step S10, after the steel support 4 is installed, the telescopic arm 13 is retracted, the telescopic arm 13 is retracted to the horizontal support 121 through the second rotating tray 123, the horizontal support 121 is retracted to the vertical support 114 through the first rotating tray 122, and finally the hoisting device 2 is moved to the parking position. The purpose of retracting the telescopic arm 13 and the horizontal support 121 is to avoid affecting the subsequent hoisting operation of the hoisting device 2.

[0071] The method for using the auxiliary device for dismounting and replacing the reinforced concrete support has the advantages that the auxiliary hoisting device 2 is used to dismount and replace the reinforced concrete support 3, the operation steps are simple, the work efficiency of dismounting and replacing the reinforced concrete support 3 is greatly improved, the construction period is shortened, the hoisting distance of the hoisting device 2 is not limited, the applicability is high, the safety of the construction personnel is ensured, and the labor intensity of the construction personnel is reduced.

[0072] It should be understood that the above description can be improved or changed by those skilled in the art, and all these improvements and changes shall belong to the protection scope of the appended claims of the present application.

[0073] The above is an exemplary description of the present application in combination with the drawings. Obviously, the implementation of the present application is not limited by the above method. Any improvement or direct application of the present application to other occasions without improvement shall be within the protection scope of the present application.

Claims

1. An auxiliary device for dismantling and replacing a reinforced concrete support, characterized in that, The utility model relates to a kind of auxiliary device for removing reinforced concrete support, including: Slidable fixed base fixed on hoisting equipment; Auxiliary support support arm, the support arm is transversely arranged at the top side of the fixed base; Adjustable length telescopic arm, the telescopic arm is vertically arranged downward at the end of the support arm away from the fixed base; Reinforced concrete support cutting device, the cutting device is arranged at the telescopic end of the telescopic arm; Wherein, the fixed base includes steel shell, two mobile devices arranged at the top wall inside the steel shell respectively two sides, two locking devices arranged at the bottom of the steel shell two sides respectively and vertical support arranged at the top of the steel shell, the steel shell can be set on the upper flange of one side support I-beam of hoisting equipment, the support arm is transversely arranged at the top side of the vertical support, the steel shell can be slid along the length direction of the upper flange by the mobile device, the steel shell is locked on the upper flange by the locking device; The hoisting equipment is gantry crane.

2. The device of claim 1, wherein, The steel shell includes top plate and two inward L-shaped side plates, two L-shaped side plates are connected by bolt respectively below left and right sides of the top plate.

3. The device of claim 1, wherein, The mobile device includes steel groove and steel wheel arranged at the bottom of the steel groove.

4. The device of claim 3, wherein, The steel wheel is connected with a hub motor, the hub motor is connected with a motor controller, the motor controller is connected with a matching wireless remote controller through wireless communication module.

5. The device of claim 1, wherein, The connecting part of the steel shell and the locking device is provided with a clamping groove parallel to the length direction of the steel shell, and the locking device can slide in the clamping groove.

6. The device of claim 1, wherein, The support arm includes horizontal support, first rotary tray and second rotary tray, one end of the horizontal support is movably connected with the top of the vertical support through the first rotary tray, and the other end of the horizontal support is movably connected with the fixed end of the telescopic arm through the second rotary tray.

7. The device of claim 1, wherein, The cutting device includes a wire saw motor, a wire saw chain and an electromagnet base plate, the wire saw motor is connected with the telescopic end of the telescopic arm, the wire saw chain is detachably connected with the driving end of the wire saw motor, and the electromagnet base plate is connected with the bottom of the wire saw motor.

8. A method of using an auxiliary device for the removal of a reinforced concrete support according to any one of claims 1 to 7, characterized in that, The steps include: Step S1, move the hoisting equipment to the parking position, and install the auxiliary device on the hoisting equipment; Step S2, move the hoisting equipment to the vicinity of the reinforced concrete support to be removed, and move the auxiliary device above the reinforced concrete support to be removed by the mobile device; Step S3, place the electromagnet base plate of the cutting device on the reinforced concrete support to be removed by the telescopic arm; Step S4, temporarily fix the two ends of the reinforced concrete support to be removed by the hoisting rope; Step S5, install the wire saw chain, and make the wire saw chain pass through the reinforced concrete support to be removed; Step S6, start the wire saw motor, and retract the telescopic arm to remove the reinforced concrete support; Step S7, hoist the removed reinforced concrete support to the concrete support beam pile position by the hoisting equipment; Step S8, hoist the steel support to the disengagement position by the hoisting equipment. Step S9, remove the rope saw chain, turn off the rope saw motor, turn on the electromagnet bottom plate, and complete the installation of the steel support by the auxiliary hoisting equipment.

9. The method of using an auxiliary device of claim 8, wherein, Also includes: Step S10, after the installation of the steel support is completed, the telescopic arm is retracted, the telescopic arm is retracted to the horizontal support through the second rotating tray, the horizontal support is retracted to the vertical support through the first rotating tray, and finally the hoisting equipment is moved to the parking position.

Images