A precise installation structure and method for a limited height internal buckling restrained braced node plate

Abstract

The present invention discloses a precise installation structure and method for a limited height internal buckling restrained support node plate. The installation structure includes a first node plate, a second node plate, an adjustable clamp, an adjustable supporter, and an adjustable actuator. The installation method uses an adjustable clamp to clamp and fix the first wing plate A and the column and / or the first wing plate B and the beam body, and uses an adjustable supporter to adjust the horizontal and vertical positions of the first node plate; and uses an obliquely arranged adjustable actuator to adjust the horizontal and vertical positions of the second node plate. The beneficial effects of the present invention: it can effectively solve the installation problem of BRB node plates in a limited space, and because the embedded ring and the lifting lug positions are optimized in the early stage, the effects of precise positioning and rapid installation can be achieved during the later installation, thereby improving work efficiency, saving time costs, and reducing construction costs.

Description

Technical Field

[0001] The present invention belongs to the technical field of buckling restrained brace (BRB) node plate installation in building construction, and specifically relates to a precise installation structure and method of a limited height internal buckling restrained brace node plate based on a concrete embedded plate. Background Art

[0002] Buckling restrained brace (BRB) is a new type of lateral force resistance and metal energy dissipation shock absorption component that has emerged in China and abroad in the past decade. The structure includes a core unit, a restraint unit, and an unbonded layer arranged between the two. Through the isolation effect of the unbonded layer and the hoop effect of the restraint unit, the support core unit can produce free axial expansion and contraction relative to the restraint unit, and can yield energy in the entire cross section under tension and compression, and will not lose its stability under compression. In recent years, BRB has been widely used in the seismic reinforcement of existing structures and the seismic reduction design of new structures at home and abroad.

[0003] At present, there are problems in the construction process of buckling restrained support structures, such as difficulty in lifting at limited height, difficulty in accurately positioning and quickly installing the upper connecting plate of the buckling restraint, and the imperfect construction technology and quality standards of the buckling restraint. These problems result in low installation efficiency of the buckling restraint support structure and the inability to guarantee the quality of the finished product. Summary of the invention

[0004] The purpose of the present invention is to provide a precise installation structure and method for a finite height internal buckling restraint support node plate, which solves the problem of imperfect construction technology and quality of buckling restraint. The present invention develops and studies a precise positioning and hoisting method for BRB node plates based on the characteristics of BRB node plates, and has achieved remarkable results in actual construction applications.

[0005] The object of the present invention is achieved through the following technical solutions:

[0006] A precise installation structure of a limited height internal buckling restrained support node plate, comprising a first node plate at the angle between a beam and a column and / or a second node plate in the middle of the beam, the first node plate comprising a first web, a second wing plate A and a first wing plate B, an adjustable clamp clamping the first wing plate A and the column and / or the first wing plate B and the beam, and adjustable supports are provided between the first wing plate A and the column, and between the first wing plate B and the beam; the second node plate comprises a second web, a second wing plate A, a second wing plate B and a second wing plate C, and adjustable actuators are provided between the second wing plate B and the beam, and between the second wing plate C and the beam.

[0007] Furthermore, the column includes a left column and a right column, the beam includes an upper beam and a lower beam, a first node plate is provided between the left column and the lower beam and between the right column and the lower beam, the beam includes an upper beam and a lower beam, and a second node plate is provided on the lower side of the middle part of the upper beam.

[0008] Furthermore, a first beam embedded plate is provided on the beam body, a first column embedded plate is provided on the column body, the first beam embedded plate and the first column embedded plate are respectively connected to the two sides of the first web, and a second beam embedded plate is provided on the beam body, and the second beam embedded plate is connected to the side of the second web.

[0009] Furthermore, a second rib is provided between the second web and the second wing plate armor.

[0010] Furthermore, a first back plate is provided on the beam body and the column, and the first back plate supports the end face of the first web plate. A second back plate is provided on the beam body, and the second back plate supports the end face of the second web plate, the outer end face of the second wing plate B and the outer end face of the second wing plate C.

[0011] Furthermore, the adjustable clamp includes a U-shaped clamp frame and a tension screw, and the two ends of the U-shaped clamp frame are connected by the tension screw.

[0012] Furthermore, the adjustable support comprises a base and a sleeve, and the base and the sleeve are connected via threads.

[0013] Furthermore, the adjustable actuator is an adjustable sling, an upper connecting rod is provided on the beam body, a lower connecting rod is provided on the second wing plate B and the second wing plate C, the upper end of the adjustable sling is hooked on the upper connecting rod, and the lower end of the adjustable sling is hooked on the lower connecting rod.

[0014] Furthermore, the beam body is provided with an embedded hole, an upper connecting rod is arranged in the embedded hole, the second wing plate B and the second wing plate C are provided with a lifting ear, and a lower connecting rod is arranged in the lifting ear.

[0015] A method for accurately installing a limited-height internal buckling-restrained support node plate, comprising a first node plate at the angle between a beam and a column and / or a second node plate in the middle of the beam, wherein the first node plate comprises a first web, a second wing plate A and a first wing plate B, and the two sides of the first web are placed relative to the angle between the beam and the column, and an adjustable clamp is used to clamp and fix the first wing plate A and the column and / or the first wing plate B and the beam, and an adjustable supporter is used to support and deviate between the first wing plate A and the column and between the first wing plate B and the beam, so as to adjust the horizontal and vertical positions of the first node plate;

[0016] Furthermore, the second node plate includes a second web, a second wing plate A, a second wing plate B and a second wing plate C, and an obliquely arranged adjustable actuator is used to support or suspend the second wing plate B and the beam body, and the second wing plate C and the beam body, so as to adjust the horizontal and vertical positions of the second node plate.

[0017] Furthermore, the column includes a left column and a right column, a first node plate is provided between the left column and the lower beam, and between the right column and the lower beam, the beam includes an upper beam and a lower beam, and a second node plate is provided on the lower side of the middle of the upper beam.

[0018] Furthermore, a first back plate is provided on the beam body and the column, and the first back plate is used to support the end face of the first web when the first node plate is installed. A second back plate is provided on the beam body, and the second back plate is used to support the end face of the second web, the outer end face of the second wing plate B and the outer end face of the second wing plate C when the second node plate is installed.

[0019] Furthermore, when installing the first node plate, the position of the first node plate is first positioned using an adjustable clamp and an adjustable support, and then the first web is fixed to the beam body and the column; when installing the second node plate, the position of the second node plate is first positioned using an adjustable actuator, and then the second web is fixed to the beam body.

[0020] Beneficial effects of the present invention:

[0021] 1. The present invention can effectively solve the installation problem of BRB node plates in a limited space, and because the positions of embedded rings and lifting ears are optimized in the early stage, the effects of precise positioning and rapid installation can be achieved in the later installation, thereby improving work efficiency, saving time costs, and reducing construction costs.

[0022] 2. The present invention optimizes the construction time of the steel back plate, so that the steel back plate can simultaneously achieve the functions of auxiliary positioning and welding backing, making the lifting positioning more accurate and the fixing simpler and more effective, thereby reducing the requirements for construction personnel and saving construction personnel costs.

[0023] 3. The tools used in the installation method of the present invention are all common tools on the construction site, the construction preparation is relatively easy, and the wooden clamps and adjustable spiral supports can be repeatedly constructed, and can also be simply removed after the application is completed and used elsewhere. After the installation is completed, only the lifting ears need to be removed, so the consumables used are relatively small, which not only reduces the material cost but also meets the requirements of environmental protection.

[0024] 4. The present invention is simpler than the traditional lifting device and does not require an extra support frame, so it occupies less space and is more conducive to construction in an environment with limited height in a building, so that it has less interference with the construction work of other types of work and can achieve wider applicability.

[0025] The aforementioned main scheme of the present invention and its further options can be freely combined to form multiple schemes, all of which are schemes that can be adopted and claimed for protection by the present invention; and in the present invention, (non-conflicting options) options and other options can also be freely combined. After understanding the scheme of the present invention, those skilled in the art can understand that there are many combinations based on the prior art and common knowledge, all of which are technical schemes to be protected by the present invention, and they are not exhaustively listed here. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the present invention.

[0027] Figure 2 It is a structural schematic diagram of the first node plate of the present invention.

[0028] Figure 3 It is a structural schematic diagram of the second node plate of the present invention.

[0029] Figure 4 It is a schematic diagram of welding of the first back plate of the present invention.

[0030] Figure 5 It is a schematic diagram of the vertical adjustment of the first node plate of the present invention.

[0031] Figure 6 It is a schematic diagram of horizontal adjustment of the first node plate of the present invention.

[0032] Figure 7 It is a structural schematic diagram of the adjustable clamp of the present invention.

[0033] Figure 8 It is a structural schematic diagram of the adjustable supporter of the present invention.

[0034] Fig. 9 It is a structural schematic diagram of the embedded hole of the present invention.

[0035] Fig.10 It is a schematic diagram of welding of the second back plate of the present invention.

[0036] Fig.11 It is a schematic diagram of adjusting the second node plate of the present invention.

[0037] Fig.12 It is a structural schematic diagram of the upper or lower connecting rod of the present invention.

[0038] In the figure: 1-left column, 2-right column, 3-upper beam, 4-lower beam, 5-first node plate, 6-second node plate, 7-first web, 8-first wing plate A, 9-first wing plate B, 10-second web, 11-second wing plate A, 12-second wing plate B, 13-second wing plate C, 14-second rib, 15-first beam embedded plate, 16-first column embedded plate, 17-second beam embedded plate, 18-first back plate, 19-adjustable clamp, 20-adjustable support, 21-second back plate, 22-embedded hole, 23-upper connecting rod, 24-adjustable actuator, 25-lifting ear, 26-lower connecting rod, 27-left buckling restraint support member, 28-right buckling restraint support member. DETAILED DESCRIPTION

[0039] The following non-limiting examples serve to illustrate the invention.

[0040] Embodiment 1:

[0041] refer to Figures 1 to 12 As shown, a precise installation structure of a limited height internal buckling restrained brace node plate includes a left column 1, a right column 2, an upper beam 3 and a lower beam 4. There are two situations for installing the BRB node plate: the first is to install it at the angle between the beam and the column, and to weld and install it with the embedded plates on the column and the beam respectively; the second is to install it under the beam and to weld and fix it with the embedded plates under the beam. Specifically, it includes a first node plate 5 between the left column 1 and the lower beam 4, between the right column 2 and the lower beam 4, and a second node plate 6 on the lower side of the middle of the upper beam 3.

[0042] The first node plate 5 is made of 40mm thick Q235 steel plate, specifically including the first web plate 7, the first wing plate A 8 and the first wing plate B 9, and the three steel plates are welded in the factory. The first web plate 7 is a rectangular structure, and the first wing plate A 8 and the first wing plate B 9 are respectively welded to the adjacent two sides of the first web plate 7 to ensure that the first wing plate A 8 and the first wing plate B 9 are perpendicular to the first web plate 7, and the adjacent corners of the two wing plates on the first web plate 7 are notched.

[0043] A first beam embedded plate 15 is provided on the lower beam body 4 at the left and right angles, and a first column embedded plate 16 is provided on the left column body 1 and the right column body 2 at the angles. The first beam embedded plate 15 and the first column embedded plate 16 are respectively welded to the two sides of the first web plate 7, the first beam embedded plate 15 is welded to the inner side of the first wing plate A 8, and the first column embedded plate 16 is welded to the inner side of the first wing plate B 9, so as to connect and support the first node plate 5.

[0044] A first back plate 18 is provided on the left column 1, the right column 2 and the lower beam 4. The first back plate 18 is made of steel and welded to the embedded plate. The first back plate 18 supports the end surface of the first web 7 and can be used for positioning during the subsequent node plate installation, and can also be used as a weld backing plate when the node plate is welded.

[0045] The adjustable clamp 19 clamps the first wing plate armor 8 and the left column (or the right column), thereby pressing the first wing plate armor 8 toward the column, ensuring that the first node plate 5 is temporarily clamped and fixed.

[0046] The adjustable clamp 19 is a wooden clamp, specifically including a U-shaped clamp frame and a tension screw. The two ends of the U-shaped clamp frame are connected by the tension screw. The bolts at both ends of the tension screw are used to squeeze the U-shaped clamp frame inward to achieve the clamping and fixing of the U-shaped clamp frame to the wing plate and the column and beam body, thereby preventing the first node plate 5 from moving.

[0047] Adjustable supports 20 are provided between the first wing plate A 8 and the left column (or right column) and between the first wing plate B 9 and the lower beam. The adjustable supports 20 are supported between the wing plate and the column or beam, and can overcome the clamping force of the adjustable clamp 19 to adjust the distance between the wing plate and the column or beam.

[0048] The adjustable support 20 includes a base and a sleeve, which are connected by threads. The base is supported on a column or a beam, and the sleeve is supported on a wing plate. By rotating the sleeve, the axial position of the sleeve relative to the base can be changed, thereby adjusting the distance between the wing plate and the column or beam.

[0049] By means of two front and rear adjustable clamps 19 (four in total) acting between the first wing plate A 8 and the column, the first node plate 5 is temporarily clamped and fixed. By means of two front and rear adjustable supports 20 (four in total) acting between the first wing plate A 8 and the column, the vertical position of the first node plate 5 is adjusted. By means of two front and rear adjustable supports 20 (four in total) acting between the first wing plate B 9 and the beam body, the horizontal position of the first node plate 5 is adjusted.

[0050] The second node plate 6 is made of 40mm thick Q235 steel plate, specifically including a second web 10, a second wing plate A 11, a second wing plate B 12, a second wing plate C 13 and two second ribs 14, and the six steel plates are welded in the factory. The second web 10 is a rectangular structure, and the second wing plate A 11, the second wing plate B 12 and the second wing plate C 13 are respectively welded to one long side and two short sides of the second web 10, ensuring that the second wing plate A 11, the second wing plate B 12 and the second wing plate C 13 are perpendicular to the second web 10, and the adjacent corners of the two wing plates on the second web 10 are processed with notches. The second ribs 14 located in front and behind are welded between the second web 10 and the second wing plate A 11 to strengthen the structure of the second node plate 6.

[0051] A second beam embedded plate 17 is provided at the lower middle side of the upper beam body 3, and the second beam embedded plate 17 is welded to the side of the second web 10, the inner side of the second wing plate B 12, and the inner side of the second wing plate C 13. An embedded hole 22 is provided on the upper beam body 3, and an upper connecting rod 23 is provided in the embedded hole 22. Lifting ears 25 are welded on the second wing plate B 12 and the second wing plate C 13, and a lower connecting rod 26 is provided in the lifting ear 25.

[0052] A second back plate 21 is provided on the upper beam body 3. The second back plate 21 is made of steel and is welded to the embedded plate. The second back plate 21 supports the end face of the second web 10, the outer end face of the second wing plate B 12 and the outer end face of the second wing plate C 13. It can be used for positioning during the subsequent node plate installation, and can also be used as a weld backing plate when the node plate is welded.

[0053] An adjustable actuator 24 is provided between the second wing plate B 12 and the beam body, and between the second wing plate C 13 and the beam body. The adjustable actuator 24 is arranged obliquely to perform a slinging or supporting effect between the wing plate and the beam body. Since the second node plate 6 of this embodiment is located at the lower part of the upper beam body 3, the adjustable actuator 24 is an adjustable sling. When the second node plate 6 is located at the upper part of the beam body, the adjustable actuator 24 can adopt a leg structure similar to the adjustable supporter 20, and its two ends can be hinged.

[0054] An upper connecting rod 23 is provided in the embedded hole 22 of the upper beam body 3, and a lower connecting rod 26 is provided in the lifting ears 25 of the second wing plate B 12 and the second wing plate C 13. The upper end of the adjustable hanger is hooked on the upper connecting rod 23, and the lower end of the adjustable hanger is hooked on the lower connecting rod 26.

[0055] When manufactured in the factory, four lifting lugs 25 are welded to the outside of the second wing plate B 12 and the second wing plate C 13, and the height of the four lifting lugs 25 is ensured to be consistent, so as to facilitate passing through the connecting rod during on-site installation. The upper connecting rod 23 and the lower connecting rod 26 are both 45mm in diameter and made of Q235 steel rods. Both ends are threaded. When lifting, M10 nuts and 10 thick washers are used to fix the hand chain hoist hook, which can be reused.

[0056] The adjustable lifting device is preferably a hand chain hoist, through which the position of the second node plate 6 relative to the upper beam body 3 is adjusted. By arranging adjustable lifting devices at the front and rear two corners (i.e., four corners), the four corners of the second node plate 6 are lifted to adjust the horizontal and vertical positions of the second node plate 6.

[0057] Embodiment 2:

[0058] refer to Figures 1 to 12 As shown, a method for accurately installing a node plate of a limited height internal buckling restrained support includes a left column 1, a right column 2, an upper beam 3 and a lower beam 4, and also includes a first node plate 5 between the left column 1 and the lower beam 4, between the right column 2 and the lower beam 4, and a second node plate 6 on the lower side of the middle part of the upper beam 3.

[0059] The on-site installation of the BRB node plate is divided into the hoisting and positioning of the node plate and the welding between the node plate web and the embedded plate. Before installing the BRB node plate, according to the axis of the structure during construction, the theodolite and laser scanner are used to pop out the BRB node plate installation position with ink lines, and the BRB node plate is accurately installed in the corresponding position with the help of the structural 1-meter line. When installing the BRB node plate, the web and the structural embedded plate are welded and fixed.

[0060] Installation method of the first node plate 5:

[0061] The first node plate 5 is made of 40mm thick Q235 steel plate, specifically including the first web plate 7, the first wing plate A 8 and the first wing plate B 9, and the three steel plates are welded in the factory. The first web plate 7 is a rectangular structure, and the first wing plate A 8 and the first wing plate B 9 are respectively welded to the adjacent two sides of the first web plate 7 to ensure that the first wing plate A 8 and the first wing plate B 9 are perpendicular to the first web plate 7, and the adjacent corners of the two wing plates on the first web plate 7 are notched.

[0062] The lower beam body 4 is provided with a first beam embedded plate 15 at the left and right angles, and the left column body 1 and the right column body 2 are provided with a first column embedded plate 16 at the angles. First, two steel first back plates 18 are welded along the ink line on one side of the embedded plates at the column and beam. When the first node plate 5 is installed, the first back plate 18 is used to support the end surface of the first web plate 7. This back plate can be used for positioning during the subsequent installation of the BRB connecting plate, and can also be used as a weld backing plate when the BRB connecting plate is welded.

[0063] The first node plate 5 is placed on the embedded plate against the steel back plate, and the two sides of the first web plate 7 are placed relative to the angle between the beam body and the column body.

[0064] After the first node plate 5 is placed in place, two front and rear (four in total) adjustable clamps 19 are used to clamp and fix the first wing plate armor 8 and the column, and the first node plate 5 and the column are transversely fixed, and two front and rear (four in total) adjustable supporters 20 are placed between the first wing plate armor 8 and the column, and the first wing plate armor 8 and the column are supported and separated by the adjustable supporters 20. The first node plate 5 can be adjusted vertically by using the adjustable clamps 19 and the adjustable supporters 20 in conjunction with the plumb bob.

[0065] Two front and rear (four in total) adjustable supports 20 are placed between the first wing plate B 9 and the beam body. The adjustable supports 20 are used to support and separate the first wing plate B 9 from the beam body. The first node plate 5 can be adjusted horizontally using the adjustable supports 20 in conjunction with a level ruler.

[0066] By using four vertically adjustable supports 20, four horizontally adjustable clamps 19 and four adjustable supports 20, and adjusting them simultaneously, the spatial position of the first node plate 5 can be accurately positioned and initially fixed.

[0067] After the initial fixation is completed, the web of the first node plate 5 is fixed to the embedded plate by spot welding. After the spot welding is firm, the adjustable supporter 20 and the adjustable clamp 19 are removed in sequence, and the final welding can be performed after the removal. The removed adjustable supporter 20 and the adjustable clamp 19 can be reused in the subsequent BRB node plate construction.

[0068] Installation method of the second node plate 6:

[0069] The second node plate 6 is made of 40mm thick Q235 steel plate, specifically including a second web 10, a second wing plate A 11, a second wing plate B 12, a second wing plate C 13 and two second ribs 14, and the six steel plates are welded in the factory. The second web 10 is a rectangular structure, and the second wing plate A 11, the second wing plate B 12 and the second wing plate C 13 are respectively welded to one long side and two short sides of the second web 10, ensuring that the second wing plate A 11, the second wing plate B 12 and the second wing plate C 13 are perpendicular to the second web 10, and the adjacent corners of the two wing plates on the second web 10 are processed with notches. The second ribs 14 located in front and behind are welded between the second web 10 and the second wing plate A 11 to strengthen the structure of the second node plate 6.

[0070] A second beam embedded plate 17 is provided on the lower middle side of the upper beam body 3. During the construction phase of the embedded plate under the beam, two 50mm PVC sleeves are embedded in the middle of the beam on the left and right sides of the embedded plate. The embedded holes 22 formed by the embedded sleeves can be used as the position for arranging the lifting struts for the subsequent installation of the second node plate 6.

[0071] During installation, first weld two steel second back plates 21 along the ink line on one side of the embedded plate at the bottom of the beam, and weld a second back plate 21 along the ink line on the outside of the flange plate installation position of the second node plate 6. When the second node plate 6 is installed, the second back plate 21 is used to support the end face of the second web 10, the outer end face of the second wing plate B 12 and the outer end face of the second wing plate C 13. This back plate can be used for positioning during the subsequent installation of the BRB connecting plate, and can also be used as a weld backing plate when welding the BRB connecting plate.

[0072] During hoisting, first transport the second node plate 6 to the beam under the installation location, pass the upper connecting rod 23 through the reserved hole for structural construction, and fix a 1T hand chain hoist at each end of the connecting rod, for a total of four hand chain hoists. Pass the lower connecting rod 26 through the lifting lug 25 of the second node plate 6, and fix the hand chain hoist hooks at both ends of the lower connecting rod 26 in the lifting lug 25. During hoisting, the four hand chain hoists cooperate with each other to lift the second node plate 6 to the installation height, and lean the left and right flange plates of the second node plate 6 against the vertical steel back plate, while leaning one side of the web plate of the second node plate 6 against the horizontal steel back plate. Use four hand chain hoists with a level ruler to adjust the BRB node plate to a horizontal level to complete the initial fixation.

[0073] After the initial fixation is completed, the web plate, flange plate and embedded plate of the second node plate 6 are welded, and after the welding is completed, the upper connecting rod 23, the lower connecting rod 26, and the hand hoist are removed in sequence, and finally the lifting lug 25 is cut off. Finally, the left buckling restraint support member 27 and the right buckling restraint support member 28 are installed and connected between the left and right first node plates 5 and the second node plates 6, and both the left and right members are I-shaped sections.

[0074] The rest is the same as in Example 1.

[0075] The above basic examples of the present invention and their further optional examples can be freely combined to form multiple embodiments, all of which are embodiments that can be adopted and claimed for protection by the present invention. In the scheme of the present invention, each optional example can be arbitrarily combined with any other basic examples and optional examples.

[0076] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A precise installation structure of a finite height internal buckling restrained support node plate, comprising a first node plate (5) at the angle between a beam and a column and / or a second node plate (6) in the middle of the beam, characterized in that: The first node plate (5) comprises a first web plate (7), a first flange plate A (8) and a first flange plate B (9); an adjustable clamp (19) clamps the first flange plate A (8) and the column and / or the first flange plate B (9) and the beam; an adjustable supporter (20) is provided between the first flange plate A (8) and the column and between the first flange plate B (9) and the beam; the second node plate (6) comprises a second web plate (10), a second flange plate A (11), a second flange plate B (12) and a second flange plate C (13); an adjustable actuator (24) is provided between the second flange plate B (12) and the beam and between the second flange plate C (13) and the beam; The column body comprises a left column body (1) and a right column body (2); the beam body comprises an upper beam body (3) and a lower beam body (4); a first node plate (5) is provided between the left column body (1) and the lower beam body (4) and between the right column body (2) and the lower beam body (4); the beam body comprises an upper beam body (3) and a lower beam body (4); a second node plate (6) is provided at the lower middle part of the upper beam body (3); The beam body and the column body are provided with a first back plate (18), the first back plate (18) supports the end surface of the first web plate (7), and the beam body is provided with a second back plate (21), the second back plate (21) supports the end surface of the second web plate (10), the outer end surface of the second wing plate B (12) and the outer end surface of the second wing plate C (13); The adjustable clamp (19) comprises a U-shaped clamp frame and a tension screw, and the two ends of the U-shaped clamp frame are connected by the tension screw; The adjustable actuator (24) is an adjustable sling, an upper connecting rod (23) is provided on the beam body, a lower connecting rod (26) is provided on the second wing plate B (12) and the second wing plate C (13), the upper end of the adjustable sling is hooked on the upper connecting rod (23), and the lower end of the adjustable sling is hooked on the lower connecting rod (26).

2. The precise installation structure of the gusset plate with limited height internal buckling restraint brace according to claim 1 is characterized in that: The adjustable support (20) comprises a base and a sleeve, and the base and the sleeve are connected via threads.

3. A precise installation method for a finite height internal buckling restrained brace gusset plate, characterized in that: The limited height internal buckling restraint support node plate precision installation structure of claim 1 is adopted; the two sides of the first web (7) are placed relative to the angle between the beam and the column, and the first wing plate A (8) and the column and / or the first wing plate B (9) and the beam are clamped and fixed by an adjustable clamp (19), and the first wing plate A (8) and the column, and the first wing plate B (9) and the beam are supported and separated by an adjustable support (20), thereby adjusting the horizontal and vertical positions of the first node plate (5); The second wing plate B (12) and the beam body, and the second wing plate C (13) and the beam body are supported or pulled by using an obliquely arranged adjustable actuator (24), thereby adjusting the horizontal and vertical positions of the second node plate (6).

4. The precise installation method of a gusset plate with limited height internal buckling restraint brace according to claim 3 is characterized in that: When the first node plate (5) is installed, the first back plate (18) is used to support the end surface of the first web plate (7), and when the second node plate (6) is installed, the second back plate (21) is used to support the end surface of the second web plate (10), the outer end surface of the second wing plate B (12), and the outer end surface of the second wing plate C (13).

5. The precise installation method of a gusset plate with limited height internal buckling restraint brace according to claim 3 or 4, characterized in that: When the first node plate (5) is installed, the position of the first node plate (5) is first positioned using the adjustable clamp (19) and the adjustable support (20), and then the first web (7) is fixed to the beam body and the column body; when the second node plate (6) is installed, the position of the second node plate (6) is first positioned using the adjustable actuator (24), and then the second web (10) is fixed to the beam body.

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