Building energy dissipation buckling restrained brace installation device and implementation method thereof

Abstract

The application belongs to the technical field of steel structure construction application, and particularly relates to a building energy-dissipation buckling restrained brace installation device and an implementation method thereof. The setting of the walking wheels facilitates the movement of the whole device, the setting of the lifting structure not only saves the occupied space, but also facilitates the construction of steel structures with different heights, and the setting of the beam flange clamp realizes accurate positioning, so that the building energy-dissipation buckling restrained brace installation device provided by the application has the following advantages compared with the prior art: 1. firm connection, high degree of mechanization and good safety; 2. fast construction speed, saved construction period and cost; 3. simple equipment use, convenient operation, saved labor cost compared with the traditional mode; 4. accurate positioning, compared with the traditional mode, the device can be directly welded after being lifted without position correction; 5. small equipment occupied space, which does not affect the surrounding construction.

Description

Technical Field

[0001] This invention belongs to the field of steel structure construction application technology, and in particular relates to a building energy dissipation buckling restraint brace installation device and its implementation method. Background Technology

[0002] A buckling-restrained brace is a dual-function component installed in a building structure, serving both load-bearing and energy-dissipating purposes during earthquakes. It consists of a core material, a sleeve to restrain the buckling of the core material, and unbonded and filler materials located between the core material and the sleeve.

[0003] Buckling-restrained braces (BRBs) can avoid the significant drawback of the tension-compression capacity difference in ordinary braces, and also possess the energy dissipation capacity of metal dampers, acting as a "fuse" in the structure to keep the main structure within its elastic range. Therefore, the application of BRBs can comprehensively improve the seismic performance of traditional braced frames.

[0004] However, during on-site installation, two hand-operated hoists are needed to lift both ends of the support and slowly adjust the tilt angle until it is aligned with the welding position. Therefore, the problems of long adjustment time, slow construction speed, and wasted labor during the installation of buckling restraint braces urgently need to be solved. Summary of the Invention

[0005] This invention addresses the technical problems existing in the installation of buckling-restrained braces on existing steel structures by proposing a building energy dissipation buckling-restrained brace installation device and its implementation method that is reasonably designed, structurally simple, and convenient for installation.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: The present invention provides a building energy dissipation buckling restraint brace installation device, including a square base and traveling wheels disposed at the bottom of the base. Columns are disposed at the four corners of the base. The columns are hollow, and lifting rods are fitted inside the columns. The lifting rods are raised and lowered within the columns. A crossbar is disposed at the end of the lifting rod away from the column. The crossbars are disposed between adjacent lifting rods. The lifting rods and crossbars form a lifting frame. A working machine box is disposed at the top of the lifting frame. The working machine box is disposed on both sides of the lifting frame. A winch is disposed inside the working machine box, and the winch rope extends out of the working machine box. A pulley frame is disposed at the front end of the lifting frame. A pulley is disposed on each side of the pulley frame, and the winch rope passes through each of the pulleys on its side. A beam flange clamp for fixing to a steel beam is disposed at the top of the pulley frame.

[0007] Preferably, a fixing rod is provided between adjacent columns, and the columns and fixing rods form a fixed frame. Ladders are provided on both sides of the fixed frame, and auxiliary ladders are provided on both sides of the lifting frame. The auxiliary ladders are located inside the lifting frame.

[0008] Preferably, the beam flange clamp includes a clamp frame mounted on a pulley frame and a bidirectional lead screw mounted within the clamp frame. A clamping plate is fitted onto the bidirectional lead screw, and a lead screw nut that cooperates with the bidirectional lead screw is provided on the clamping plate. The clamping plate is arranged in an inverted L-shape, and the clamping plate can move towards or relative to each other under the action of the bidirectional lead screw.

[0009] Preferably, a support buckle is also included, and the winch rope is detachably connected to the support buckle. The support buckle includes a vertically arranged vertical plate, a horizontal plate arranged perpendicular to the vertical plate, an auxiliary horizontal plate arranged parallel to the horizontal plate, and an auxiliary vertical plate arranged parallel to the vertical plate. Each of the vertical plate, horizontal plate, auxiliary horizontal plate, and auxiliary vertical plate is provided with an insertion slot. Fixing holes are provided between the insertion slots. The fixing holes are spaced apart along the long side of the vertical plate, horizontal plate, auxiliary horizontal plate, and auxiliary vertical plate. The auxiliary horizontal plate is inserted into the insertion slots of the vertical plate and auxiliary vertical plate. The auxiliary vertical plate is inserted into the insertion slots of the horizontal plate and auxiliary horizontal plate. Fixed connecting parts are provided between the auxiliary horizontal plate and vertical plate, between the auxiliary vertical plate, and between the auxiliary vertical plate and horizontal plate. The connecting parts are connected and fixed by inserting pins into the fixing holes.

[0010] The present invention also provides a method for implementing the above-mentioned building energy dissipation buckling restraint brace installation device, comprising the following steps:

[0011] a. First, determine the lifting point of the buckling restraint brace on the steel beam;

[0012] b. Then push the building energy dissipation buckling restraint brace installation device to the lifting point position, so that the telescopic frame extends until the beam flange clamp is in contact with the lower surface of the steel beam;

[0013] c. Correct the position so that the beam flange clamp is at the lifting point, and tighten the clamping plate to fix it at the buckling restraint support lifting point;

[0014] d. Install the support clips onto both ends of the buckling-restrained brace and secure them.

[0015] e. Connect the ropes of the two winches to the support buckles on their sides, and set the retracted length of the ropes of the two winches.

[0016] f. First, operate the winch at the upper end of the buckling restraint support, then operate the winch at the other end until the winch rope is retracted to the specified length.

[0017] g. Check and verify the position of the buckling restraint brace, then weld the buckling restraint brace and perform a welding quality inspection;

[0018] h. Once the building passes inspection, the energy dissipation buckling restraint brace installation device can be removed.

[0019] Compared with the prior art, the advantages and positive effects of the present invention are as follows:

[0020] This invention provides a building energy dissipation buckling-restrained brace installation device and its implementation method. The device utilizes wheels for easy movement and a lifting structure to save space and facilitate construction on steel structures of varying heights. Furthermore, the use of beam flange clamps ensures accurate positioning. Therefore, compared to existing technologies, the building energy dissipation buckling-restrained brace installation device of this invention offers the following advantages: 1. Stronger connection, higher degree of mechanization, and better safety; 2. Faster construction speed, saving time and costs; 3. Simple and easy to operate, reducing labor costs compared to traditional methods; 4. Accurate positioning, allowing for direct welding after lifting without the need for position correction, unlike traditional methods; 5. Small footprint, not affecting surrounding construction. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for implementation in the following description of the embodiments will be briefly introduced. Obviously, the accompanying drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of the building energy dissipation buckling restraint brace installation device provided in Example 1;

[0023] Figure 2 This is a schematic diagram of the support buckle provided in Example 1;

[0024] Figure 3 This is a structural schematic diagram of the support buckle provided in Embodiment 1 from another angle;

[0025] In the above figures, 1. Base; 11. Traveling wheel; 2. Fixed frame; 21. Column; 22. Fixed rod; 23. Ladder; 3. Lifting frame; 31. Lifting rod; 32. Horizontal bar; 33. Auxiliary ladder; 4. Work box; 41. Rope; 5. Pulley frame; 6. Clamping frame; 61. Clamping plate; 7. Support buckle; 71. Vertical plate; 72. Horizontal plate; 73. Auxiliary vertical plate; 74. Auxiliary horizontal plate; 75. Insertion slot; 76. Fixing hole. Detailed Implementation

[0026] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0027] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways than those described herein, and therefore the invention is not limited to the specific embodiments disclosed in the following specification.

[0028] Example 1, such as Figures 1-3 As shown, this embodiment aims to solve the problem of troublesome buckling restraint brace installation during steel structure construction. To this end, the building energy dissipation buckling restraint brace installation device provided in this embodiment includes a square base 1 and a traveling wheel 11 set at the bottom of the base 1. In this embodiment, the base 1 is generally rectangular box-shaped with a square bottom surface. The traveling wheel 11 is a lockable universal traveling wheel 11. Columns 21 are set at the four corners of the base 1. The columns 21 are hollow and connected to the interior of the base 1. A lead screw is set inside the column 21. A motor is set inside the base 1. The motor and the lead screw constitute the structure of a common screw jack. A lifting rod 31 is fitted inside the column 21. The bottom of the lifting rod 31 is sealed and a lead screw nut is provided. In this way, the lifting rod 31 can be raised and lowered inside the column 21.

[0029] To ensure the stability of the lifting rod 31, in this embodiment, a crossbar 32 is provided at the end of the lifting rod 31 away from the column 21. The crossbar 32 is provided between adjacent lifting rods 31, so that the lifting rod 31 and the crossbar 32 form a lifting frame 3. A working machine box 4 is provided at the top of the lifting frame 3. Since it is necessary to hoist the two ends of the buckling restraint support, the working machine box 4 is provided on both sides of the lifting frame 3. A winch is provided inside the working machine box 4, and the rope 41 of the winch extends out of the working machine box 4.

[0030] Considering the stability of the buckling restraint support hoisting position, in this embodiment, a pulley frame 5 is provided at the front end of the lifting frame 3. A pulley is provided on each side of the pulley frame 5, and the winch rope 41 passes through the pulley on each side. That is, the winch rope 41 on the left side passes through the left pulley, and the winch rope 41 on the right side passes through the right pulley. Of course, a double-layer pulley can also be provided. In this way, since the rope 41 is connected to both ends of the buckling restraint support, it forms a structure similar to a triangle. Compared with the traditional structure that is basically a regular square, it is more stable and easier to determine the position.

[0031] To ensure further stability during lifting and prevent displacement of the entire installation due to the lifting process, in this embodiment, the top of the pulley frame 5 is equipped with a beam flange clamp for fixing it to the steel beam. The beam flange clamp primarily secures the device to the steel beam, thus ensuring stability of the entire device during lifting. Furthermore, in this embodiment, the upper surface of the housing is flush with the clamping surface of the beam flange clamp. During lifting, the upper surface of the housing rests against the lower surface of the steel beam flange to counteract the upward force exerted on the winch by the lifting support.

[0032] To ensure the stability of the lifting, in this embodiment, a fixing rod 22 is provided between adjacent columns 21, and the columns 21 and the fixing rod 22 form a fixing frame 6. In this way, the columns 21 and 1 form a connecting support to ensure stability.

[0033] Considering that the implementation devices are mostly located on the top of the lifting frame 3, ladders 23 are provided on both sides of the fixed frame 6 for easy maintenance, and auxiliary ladders 33 are provided on both sides of the lifting frame 3. The auxiliary ladders 33 are located on the inner side of the lifting frame 3. In this way, construction can be carried out in both the non-implementation state and the implementation state.

[0034] To facilitate the connection of the steel beams, in this embodiment, the beam flange clamp includes a clamp frame 6 mounted on the pulley frame 5 and a double-acting lead screw within the clamp frame 6. In this embodiment, two double-acting lead screws are arranged side-by-side within the clamp frame 6, and a clamping plate 61 is fitted onto each double-acting lead screw. The clamping plate 61 has a lead screw nut that mates with the double-acting lead screw. The clamping plate 61 is arranged in an inverted L-shape, and under the action of the double-acting lead screws, it moves towards or relative to each other. A drive motor is installed within the beam flange clamp, and the motor uses a synchronous belt to achieve synchronous rotation of the two double-acting lead screws. Thus, the top of the clamping plate 61 rests on the steel beam for fixation. It should be noted that, since the clamping point is preferably the lifting point, in this embodiment, the clamp frame 6 and the pulley frame 5 are an integral structure.

[0035] To address the traditional method of fixing buckling restraint braces using welding lugs, this embodiment also provides a support buckle 7 for fixing buckling restraint braces. The winch rope 41 is detachably connected to the support buckle 7 and can be directly connected using a hook.

[0036] In this embodiment, the support buckle 7 includes a vertically arranged vertical plate 71, a horizontal plate 72 perpendicular to the vertical plate 71, an auxiliary horizontal plate 74 parallel to the horizontal plate 72, and an auxiliary vertical plate 73 parallel to the vertical plate 71. The vertical plate 71 and the horizontal plate 72 form an L-shape and are an integral structure. Insertion slots 75 are provided on the vertical plate 71, the horizontal plate 72, the auxiliary horizontal plate 74, and the auxiliary vertical plate 73. Fixing holes 76 are provided between the insertion slots 75, and the fixing holes 76 extend along the vertical plate 71 and the horizontal plate 72. The auxiliary horizontal plate 74 and auxiliary vertical plate 73 are spaced apart along their long sides. The auxiliary horizontal plate 74 is inserted into the insertion slots 75 of the vertical plate 71 and auxiliary vertical plate 73, and the auxiliary vertical plate 73 is inserted into the insertion slots 75 of the horizontal plate 72 and auxiliary horizontal plate 74. Simultaneously, connecting members for fixing are provided between the auxiliary horizontal plate 74 and vertical plate 71, between the auxiliary vertical plate 73 and horizontal plate 72, and between the auxiliary vertical plate 73 and auxiliary horizontal plate 74. The connecting members are fixed by inserting pins (not shown in the figure) into fixing holes 76. In this embodiment, there are two types of connecting members: one is L-shaped, with fixing holes 76 distributed on it, used for setting at the connection corner of the auxiliary horizontal plate 74 and auxiliary vertical plate 73; the other is flat, with fixing holes 76 and through holes. The through holes are used for inserting the auxiliary horizontal plate 74 and auxiliary vertical plate 73, while the fixing holes 76 are used for connecting with the vertical plate 71 or horizontal plate 72. In this way, the pins and connectors clamp the buckling restraint support while also facilitating disassembly.

[0037] In practical use, first determine the lifting point of the buckling restraint brace on the steel beam (the bottom position of the steel beam corresponding to the center of gravity after the brace is lifted), the length of the upper lifting rope of the brace after lifting (the length from the pulley position at the lifting point to the lifting point 7 of the upper support buckle), and the length of the lower lifting rope of the brace after lifting (the length from the pulley position at the lifting point to the lifting point 7 of the lower support buckle).

[0038] Then, the building energy dissipation buckling restraint brace installation device is moved to the lifting point position, so that the telescopic frame extends until the beam flange clamp is in contact with the lower surface of the steel beam. Then, the position is corrected so that the beam flange clamp is located at the lifting point position, and the clamping plate 61 is tightened to fix it at the buckling restraint brace lifting point.

[0039] During operation, the support buckles 7 can be installed and fixed to both ends of the buckling restraint support. Then, the ropes 41 of the two winches are connected to the support buckles 7 on their sides, and the retraction length of the ropes 41 of the two winches is set.

[0040] First, operate the winch at the upper end of the buckling restraint support, then operate the winch at the other end until the winch rope 41 retracts to the specified length. It should be noted that controlling the retraction length of rope 41 can be achieved by controlling the winch or the pulley. The lifting distance can be determined based on the number of pulley rotations, similar to a roller distance meter, with a preset function and locking device added. Alternatively, a roller distance meter can be directly installed, and a clamping device can be used to clamp rope 41 while simultaneously closing the winch.

[0041] After verifying the location of the buckling-restrained braces, welding can proceed, followed by a welding quality inspection. Once the welds pass inspection, the building's energy-dissipating buckling-restrained brace installation device can be removed.

[0042] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A building energy dissipation buckling-restrained brace installation device, characterized in that, The device includes a square base and wheels at the bottom of the base. Four hollow columns are positioned at the four corners of the base, each containing a lifting rod. The lifting rods are raised and lowered within the columns. A crossbar is positioned at the end of each lifting rod furthest from the column, and these crossbars are positioned between adjacent lifting rods. The lifting rods and crossbars form a lifting frame. A working housing is located at the top of the lifting frame, and two working housings are positioned on either side of the lifting frame. A winch is installed inside the working housing, and the winch's rope... The cable extends out of the working machine housing. A pulley frame is located at the front end of the lifting frame, with a pulley on each side of the pulley frame. The winch's rope passes through each of the side pulleys. A beam flange clamp for fixing to a steel beam is located at the top of the pulley frame. A fixing rod is installed between adjacent columns, forming a fixed frame. Ladders are installed on both sides of the fixed frame, and auxiliary ladders are installed on both sides of the lifting frame, located inside the lifting frame. The beam flange clamp includes components mounted on the pulley frame. The system includes a clamping frame and a bidirectional lead screw installed within the clamping frame. A clamping plate is fitted onto the bidirectional lead screw, and a lead screw nut that mates with the bidirectional lead screw is provided on the clamping plate. The clamping plate is inverted L-shaped and moves towards or relative to each other under the action of the bidirectional lead screw. The system also includes a support buckle, to which the winch rope is detachably connected. The support buckle includes a vertically arranged vertical plate, a horizontal plate perpendicular to the vertical plate, an auxiliary horizontal plate parallel to the horizontal plate, and an auxiliary vertical plate parallel to the vertical plate. The plate, including the vertical plate, horizontal plate, auxiliary horizontal plate, and auxiliary vertical plate, is provided with insertion slots. Fixing holes are provided between the insertion slots. The fixing holes are spaced apart along the long side of the vertical plate, horizontal plate, auxiliary horizontal plate, and auxiliary vertical plate. The auxiliary horizontal plate is inserted into the insertion slots of the vertical plate and auxiliary vertical plate, and the auxiliary vertical plate is inserted into the insertion slots of the horizontal plate and auxiliary horizontal plate. Fixed connecting parts are provided between the auxiliary horizontal plate and the vertical plate, between the auxiliary vertical plate, and between the auxiliary vertical plate and the horizontal plate. The connecting parts are connected and fixed by inserting pins into the fixing holes.

2. The method for implementing the building energy dissipation buckling restraint brace installation device according to claim 1, characterized in that, Includes the following steps: a. First, determine the lifting point of the buckling restraint brace on the steel beam; b. Then push the building energy dissipation buckling restraint brace installation device to the lifting point position, so that the lifting frame is raised and lowered until the beam flange clamp is in contact with the lower surface of the steel beam; c. Correct the position so that the beam flange clamp is at the lifting point, and tighten the clamping plate to fix it at the buckling restraint support lifting point; d. Install the support clips onto both ends of the buckling-restrained brace and secure them. e. Connect the ropes of the two winches to the support buckles on their sides, and set the retracted length of the ropes of the two winches. f. First, operate the winch at the upper end of the buckling restraint support, then operate the winch at the other end until the winch rope is retracted to the specified length. g. Check and verify the position of the buckling restraint brace, then weld the buckling restraint brace and perform a welding quality inspection; h. Once the building passes inspection, the energy dissipation buckling restraint brace installation device can be removed.

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