Jig frame for pre-assembly of girdle truss

Abstract

The utility model discloses a jig frame for pre-assembly of an endless belt truss, which belongs to the technical field of building pre-assembly, the endless belt truss comprises a plurality of column bodies and rod bodies between every two column bodies, and the jig frame comprises a first column body frame assembly and a second column body frame assembly which are used for placing the column bodies, and a rod body frame assembly used for placing the rod bodies, the first column body frame assembly, the second column body frame assembly and the rod body frame assembly are arranged in parallel and are mutually independent; the overall height of the first column frame assembly is higher than the overall height of the rod frame assembly, and the overall height of the rod frame assembly is higher than the overall height of the second column frame assembly, so that the height of the jig frame is gradually reduced in the direction from the first column frame assembly to the second column frame assembly. The ring belt truss is pre-assembled through the jig frame, whether component machining meets the quality requirements of on-site assembly and installation or not can be directly checked through solid pre-assembly, and it is guaranteed that normal operation of the next procedure is guaranteed, and the installation quality meets the standard and design requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of building pre-assembly, in particular to a pre-assembly frame of annular belt trusses. Background Art

[0002] Super high-rise belt truss is a key structural technology widely used in super high-rise buildings to improve the overall stiffness and lateral force resistance of the building. Its main function is to set trusses at certain specific heights of the building, connect the core tube with the outer frame, and form a closed ring structure, thereby enhancing the wind and earthquake resistance of the building. The belt truss can significantly improve the overall stiffness of the structure, reduce lateral displacement, and enhance the stability and safety of the building. At the same time, this structural form can also optimize the use of materials and reduce costs. The belt truss is usually set in the middle and high-rise areas of the building. According to the specific design requirements, the appropriate truss form and node connection method are selected to ensure the effective transmission of force. During the construction process, the belt truss is generally made of high-strength steel and installed by high-altitude assembly technology. High-precision measurement and construction technology are required to ensure the accuracy and safety of the structure. In short, the super high-rise belt truss technology plays an important role in modern super high-rise buildings and is one of the important measures to ensure the safety, stability and efficiency of the building.

[0003] Existing technologies such as Chinese patent publication number CN115434520B disclose a method to replace the three-dimensional pre-assembly of complex heavy trusses. The axis is laid out on the ground according to the plane projection diagram of a single truss, and the pre-assembly physical frame is erected according to the spatial dimensions of the frame diagram. The line is accurately laid out on the super-leveled platform, and the shared truss in this pre-assembly is pre-assembled again with the next truss; a point is selected at the lower left corner of the truss, and a total station is used to measure this point as the origin, and the measured 3D coordinate point is compared with the 3D theoretical coordinate point derived from the model to ensure the accuracy of the pre-assembly. This method solves the problem that the accuracy of the return point of the plumb line of the pre-assembled ground sample is affected by the super-high height of the overall vertical pre-assembly, resulting in insufficient accuracy of the return point of the ground sample line, and the construction difficulty is increased by the increase in wind speed.

[0004] The above-mentioned patent involves a method for pre-assembling super-high-rise heavy trusses, and lacks a frame for installing super-high-rise ring-belt trusses, and is not applicable to the pre-assembly of super-high-rise ring-belt trusses. Utility Model Content

[0005] The utility model provides a pre-assembled tire frame for annular belt trusses. By pre-assembling the annular belt trusses through the tire frame, possible installation problems can be discovered in advance, so that adjustments can be made in advance, thereby reducing errors during on-site installation.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] A pre-assembled tire frame of an annular truss, the annular truss includes a plurality of columns and a rod body between every two of the columns, and the columns and the rod bodies form a ring, including a first column frame assembly for placing the columns, a second column frame assembly and a rod frame assembly for placing the rod body, the first column frame assembly, the second column frame assembly and the rod frame assembly are arranged in parallel and are independent of each other, the second column frame assembly is arranged between the two first column frame assemblies, and the rod frame assembly is arranged between the first column frame assembly and the second column frame assembly; the overall height of the first column frame assembly is higher than the overall height of the rod frame assembly, and the overall height of the rod frame assembly is higher than the overall height of the second column frame assembly, so that the height of the tire frame gradually decreases along the direction from the first column frame assembly to the second column frame assembly.

[0008] The preferred technical solution of the utility model is that the first column frame assembly includes a first support unit and a positioning unit for positioning the two ends of the column, and the first support unit is installed in parallel between the positioning units; the second column frame assembly includes a second support unit, and a plurality of the second support units are installed in parallel, and the installation position of the second support unit is located on the same straight line as the positions of the first support unit and the positioning unit; the rod frame assembly includes at least two rod units, and a plurality of the rod units are arranged in parallel between the second column assembly and the first column frame assembly.

[0009] An optimal technical solution of the utility model is that the first supporting unit is provided with a first fixing part, a first connecting part and a first supporting part from bottom to top, and the first fixing part, the first connecting part and the first supporting part are rigidly connected; the positioning unit is provided with a second fixing part, at least two second connecting parts and a second supporting part in sequence from bottom to top, the second connecting parts are arranged in parallel on the second fixing part, and each second connecting part is provided with the second supporting part.

[0010] A preferred technical solution of the utility model is that the second supporting unit is provided with a third connecting portion and a third supporting portion in sequence from the bottom to the top, and the third supporting portion is connected above the third connecting portion.

[0011] An optimal technical solution of the utility model is that the rod unit includes a support plate and a fourth connecting portion, the support plate is located above the fourth connecting portion, and the length of the support plate is adapted to the distance between the two positioning units; along the direction from the first column frame assembly to the second column assembly, the height of the support plate gradually decreases, that is, the height of the support plate close to the first column frame assembly is higher than the height of the support plate close to the second column assembly.

[0012] A preferred technical solution of the present invention is that a first groove is formed at the middle of the top of each of the first supporting portion and the second supporting portion, and the first groove is arranged in an arc shape.

[0013] An optimal technical solution of the present invention is that the first connecting portion, the second connecting portion, the third connecting portion and the fourth connecting portion are all configured as H-shaped steels.

[0014] The beneficial effects of the utility model are:

[0015] The utility model proposes a pre-assembled tire frame for annular trusses. As a special process equipment, the tire frame has a surface line shape that matches the outer surface of the segment, which can ensure that the assembly and welding of the segment have good conditions, make the assembly shape of the segment correct, support the gravity of the segment, and control the deformation of the segment within a minimum range through reasonable assembly and welding technology and efficient welding technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which are incorporated into the specification and constitute a part of the specification, illustrate embodiments of the utility model and are used together with the description to explain the principles of the utility model. In these drawings, similar reference numerals are used to represent similar elements. The drawings described below are some embodiments of the utility model, rather than all embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the tire frame pre-assembled with the ring belt truss provided in the specific embodiment of the utility model;

[0018] Figure 2 It is a schematic diagram of the overall structure of the positioning unit of the tire frame pre-assembled by the ring belt truss provided in the specific embodiment of the utility model;

[0019] Figure 3 It is a schematic diagram of the overall structure of the first supporting unit of the pre-assembled tire frame of the ring belt truss provided in a specific embodiment of the utility model;

[0020] Figure 4It is a schematic diagram of the overall structure of the rod unit of the pre-assembled tire frame of the ring belt truss provided in a specific embodiment of the utility model;

[0021] Figure 5 It is a schematic diagram of the overall structure of the second support unit of the tire frame pre-assembled with the ring belt truss provided in the specific embodiment of the utility model;

[0022] Figure 6 It is a front view of the overall structure of the tire frame pre-assembled with the ring belt truss provided in the specific embodiment of the utility model;

[0023] Figure 7 It is a side view of the overall structure of the tire frame pre-assembled with the ring belt truss provided in the specific embodiment of the utility model;

[0024] Figure 8 It is a schematic diagram of the installation of the overall structure of the pre-assembled tire frame of the ring belt truss and the truss column provided in the specific embodiment of the utility model;

[0025] Fig. 9 It is a schematic diagram of the installation of the overall structure of the pre-assembled tire frame of the ring belt truss provided in the specific embodiment of the utility model, the truss column and the rod body;

[0026] Fig.10 It is a schematic diagram of checking the overall structure of the pre-assembled tire frame of the ring belt truss provided in the specific embodiment of the utility model with the truss column and the rod body through a level meter after installation;

[0027] In the figure:

[0028] 1. Column; 2. Rod; 3. First column frame assembly; 301. First support unit; 3011. First fixing part; 3012. First connecting part; 3013. First support part; 302. Positioning unit; 3021. Second fixing part; 3022. Second connecting part; 3023. Second support part; 4. Second column frame assembly; 401. Second support unit; 4011. Third connecting part; 4012. Third support part; 5. Rod frame assembly; 501. Rod unit; 5011. Support sheet; 5012. Fourth connecting part; 6. First groove. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. It should be noted that the embodiments in this application and the features in the embodiments can be combined with each other arbitrarily without conflict.

[0030] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0031] like Figure 1-10 As shown, the utility model provides a pre-assembled frame of annular truss, which is used to assemble the components of the annular truss. The annular truss is composed of a plurality of columns 1 and rods 2 to form a ring. The frame used to pre-assemble the annular truss includes a first column frame assembly 3, a second column frame assembly 4 and a rod frame assembly 5 which are arranged in parallel and are independent of each other. The second column frame assembly 4 is located between the two first column frame assemblies 3, and the rod frame assembly 5 is located between the second column frame assembly 4 and the first column frame assembly 3. The overall height of the second column frame assembly 4 is lower than the overall height of the rod frame assembly 5, and the overall height of the rod frame assembly 5 is lower than the overall height of the first column frame assembly 3, so that the height of the first column frame assembly 3 gradually decreases toward the second column frame assembly 4.

[0032] Through the above-mentioned hierarchical design, the columns 1 of the first column frame assemblies 3 on both sides are higher than the columns 1 on the second column frame assemblies 4. When the rod 2 is installed on the rod frame assembly 5, a drop is formed, which facilitates the formation of a circular truss by assembling several components assembled on the tire frame.

[0033] The first column frame assembly 3 includes a first support unit 301 and a positioning unit 302. The first support unit 301 and the positioning unit 302 are arranged in parallel. The positioning unit 302 is used to position the two ends of the column 1. The first support unit 301 is installed in parallel between the positioning units 302 to support the middle section of the column.

[0034] The second column frame assembly 4 includes a second support unit 401. Since the installation position of the second support unit 401 is on the same straight line as the first support unit 301 and the positioning unit 302, when the position of the positioning unit 302 is determined, the second column frame assembly 4 does not need to be positioned again, preventing complicated processes from affecting the progress of pre-assembly.

[0035] The rod frame assembly 5 includes at least two rod units 501, which are also arranged in parallel and perpendicular to the first support unit 301, the second support unit 401 and the positioning unit 302. The rod unit 501 is used to support the connecting rods between the columns 1 in the truss member.

[0036] In order to enable each unit to better support the rod body 2 and the column 1, the first support unit 301 includes a first fixing portion 3011, at least two first connecting portions 3012 and a first supporting portion 3013 from bottom to top. The first fixing portion 3011 is used to stably support the first support unit 301 on the pre-assembly site, and is set to a stable supporting shape such as a rectangular parallelepiped. Multiple first connecting portions 3012 are arranged in parallel above the first fixing portion 3011. The first connecting portion 3012 is set to H-shaped steel. The two sides of the first connecting portion 3012 are respectively connected to the first fixing portion 3011 and the first supporting portion 3013. A first supporting portion 3013 for supporting the column 1 is connected to the top of each first connecting portion 3012. The first supporting portion 3013 is in contact with the column 1, and a first groove 6 is opened on the first supporting portion 3013. The first groove 6 is set to an arc shape so that it can better support the column 1.

[0037] The positioning unit 302 includes a second fixing portion 3021, a second connecting portion 3022 and a second supporting portion 2023. The positioning unit 302 is used to locate the positions of the two ends of the column 1. The width of the second fixing portion 3021 is smaller than the width of the first fixing portion 3011. The second fixing portion 3021 is connected to the second connecting portion 3022. The second connecting portion 3022 is an H-shaped steel. The two sides of the second connecting portion 3022 are respectively connected to the second supporting portion 2023 and the second fixing portion 3011. The second supporting portion 2023 is also provided with a first groove 6.

[0038] The second support unit 401 includes a third connecting part 4011 and a third supporting part 4012. The column 1 supported by the second support unit 401 is located at the lowest position and does not require any stabilization measures from the fixing part. The third connecting part 4011 is configured as an H-shaped steel. The bottom of the third connecting part 4011 is used to be placed on the ground, and the other side is connected to the third supporting part 4012. The third supporting part 4012 is also provided with a first groove 6.

[0039] The rod body unit 501 includes a support plate 5011 and a fourth connecting part 5012. The fourth connecting part 5012 is set to H-shaped steel and serves as a bottom support like the third connecting part 4011. The support plate 5011 is set above the fourth connecting part 5012, and in order to achieve the effect of gradual height change, the height of the support plate 5011 gradually decreases along the direction of the second support unit 401. The length of the support plate 5011 is adapted to the distance between the two positioning units 302 to prevent the support rod body 2 from being insufficiently strong.

[0040] like Figure 8-10 As shown, the assembly steps of the utility model are as follows, including the following steps:

[0041] Prepare the necessary equipment and venue, including the equipment shown in the following table:

[0042]

[0043] The factory pre-assembly site is an open-air site with a length of 300m and a width of 30m, equipped with two 32-ton gantry cranes. The ground is a concrete floor with embedded steel plates arranged at a certain interval to fix the assembly frame.

[0044] Pre-assembly is carried out by means of horizontal vertical assembly, and the pre-assembly ground sample line is drawn according to the component vertical layout drawing. When drawing the ground sample line, the center line (or axis) should be drawn first, and then the outer center line of the component is drawn by offsetting the center line (or axis).

[0045] According to the drawn ground sample line and the actual structural conditions of the components, the pre-assembly frame is erected. After the frame is erected, the actual components are placed on the frame in a certain order. After the components are placed, the overall adjustment is made to the corresponding ground sample line; by detecting the size deviation of each control point and the misalignment and gap between the corresponding ports, the manufacturing accuracy of the components is mastered, and the causes of the deviation are analyzed, so as to achieve the purpose of factory pre-assembly.

[0046] After confirming that the pre-assembly is correct, a connecting plate is installed on each pre-assembly joint and fixed with ordinary bolts. Considering the project progress requirements, the structural dimensions and its own characteristics during horizontal assembly, and at the same time achieving the purpose of pre-assembly inspection, it is decided to pre-assemble the ring belt trusses from axis 1-3 to axis 1-5 in the factory. If the physical pre-assembly inspection of the trusses from axis 1-3 to axis 1-5 is qualified, the physical pre-assembly of the ring belt trusses will no longer be carried out.

[0047] The specific steps are as follows:

[0048] Step S2, drawing of ground sample lines, which are laid out at the pre-assembly site according to the component elevation layout drawing. The ground sample lines include positioning control points, positioning axes, component center lines, and projection points of node brackets, etc. After the ground sample lines are drawn, they are inspected by factory quality inspectors and can only be erected after they are confirmed to be qualified.

[0049] Step S3, erecting the tire frame. The pre-assembly tire frame materials are selected from H-shaped steel and steel plate residues. According to the form of the pre-assembled components, the relationship between the contact part between the tire frame and the component and the ground sample line, determine the position of the tire frame and its height size (for easy operation), and use a level to measure and adjust the height position of the tire frame. After the tire frame is erected, it will be inspected by the factory inspector and confirmed to be correct before welding reinforcement can be carried out.

[0050] Step S3, the steel column is in place. According to the pre-assembly drawing, the prepared steel column is placed on the tire frame in the direction shown in the figure. The position of the component is adjusted by adjusting the main control point of the component to coincide with the control point on the ground sample. The plumb bob is used to detect the coincidence between the center line of the steel column and the control point of the ground sample. At the same time, the distance between the steel columns and the diagonal dimensions are checked. After the size and position are confirmed to be qualified, the steel column is temporarily fixed.

[0051] Step S5, install the steel beam. According to the pre-assembly drawing, place the prepared steel beam on the frame in the direction shown in the figure. Adjust the position of the component by adjusting the main control points of the component to coincide with the control points on the ground sample. Use a plumb bob to detect the coincidence between the center line of the steel beam and the control points of the ground sample. After passing the test, install the installation splint between the steel beam and the corbel (fixed with ordinary bolts).

[0052] Step S6, according to the pre-assembly drawing, place the prepared support on the tire frame in the direction shown in the figure, adjust the position of the support rod, and after the position is determined to be qualified, install the mounting clamp between the support and the corbel (fixed with ordinary bolts).

[0053] Step S7, overall inspection, specifically including the following inspection items:

[0054] a. Punch inspection: Use ordinary bolts to test-puncture the bolts at each connection location;

[0055] b. Level check: Use a level to check the level of the entire pre-assembled component;

[0056] c. Dimension inspection: Check the overall dimensions of the assembly surface according to the dimensions of the pre-assembly drawing;

[0057] d. Misalignment inspection: Use a steel ruler to inspect the misalignment of the wing and web at each connection location one by one;

[0058] e. Appearance inspection: The quality inspector shall inspect the appearance of all pre-assembled components;

[0059] It also includes on-site joint dimension inspection diagram (welding gap, misalignment, groove angle, etc.), level (total station) measurement (level, height and relative dimensions of each point, etc.), cross-sectional dimension inspection diagram (relative dimensions between steel pipe columns and corbels of each axis), and facade dimension inspection diagram (height of steel pipe columns of each axis, diagonal of corbels, etc.).

[0060] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that an article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such article or device. In the absence of further restrictions, the elements defined by the sentence "include..." do not exclude the existence of other identical elements in the article or device including the elements.

[0061] The above embodiments are only used to illustrate the technical solution of the utility model but not to limit it. The utility model is described in detail with reference to the preferred embodiments. It should be understood by those skilled in the art that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, and all should be included in the scope of the claims of the utility model.

Claims

1. A pre-assembled tire frame of an endless belt truss, the endless belt truss comprising a plurality of columns (1) and a rod (2) between every two of the columns (1), the columns (1) and the rods (2) forming a ring, characterized in that: The invention comprises a first column frame assembly (3) for placing the column (1), a second column frame assembly (4) and a rod frame assembly (5) for placing the rod (2); the first column frame assembly (3), the second column frame assembly (4) and the rod frame assembly (5) are arranged in parallel and are independent of each other; the second column frame assembly (4) is arranged between two first column frame assemblies (3); and the rod frame assembly (5) is arranged between the first column frame assembly (3) and the second column frame assembly (4); The overall height of the first column frame assembly (3) is higher than the overall height of the rod frame assembly (5), and the overall height of the rod frame assembly (5) is higher than the overall height of the second column frame assembly (4), so that the height of the tire frame gradually decreases in the direction from the first column frame assembly (3) to the second column frame assembly (4).

2. The tire frame for pre-assembly of the belt truss according to claim 1, characterized in that: The first column frame assembly (3) comprises a first support unit (301) and a positioning unit (302) for positioning the two ends of the column (1), and the first support unit (301) is installed in parallel between the positioning units (302); The second column frame assembly (4) comprises a second support unit (401), a plurality of the second support units (401) are installed in parallel, and the installation position of the second support unit (401) is located on the same straight line as the position of the first support unit (301) and the positioning unit (302); The rod frame assembly (5) comprises at least two rod units (501), and a plurality of the rod units (501) are arranged in parallel between the second column (1) assembly and the first column frame assembly (3).

3. The tire frame for pre-assembly of the belt truss according to claim 2, characterized in that: The first supporting unit (301) is provided with a first fixing portion (3011), a first connecting portion (3012) and a first supporting portion (3013) from the bottom to the top, and the first fixing portion (3011), the first connecting portion (3012) and the first supporting portion (3013) are rigidly connected; The positioning unit (302) is provided with a second fixing portion (3021), at least two second connecting portions (3022) and a second supporting portion (3023) in sequence from bottom to top, the second connecting portions (3022) are arranged in parallel on the second fixing portion (3021), and each second connecting portion (3022) is provided with the second supporting portion (3023).

4. The tire frame for pre-assembly of the belt truss according to claim 3, characterized in that: The second supporting unit (401) is provided with a third connecting portion (4011) and a third supporting portion (4012) in sequence from the bottom to the top, and the third supporting portion (4012) is connected above the third connecting portion (4011).

5. The tire frame for pre-assembly of the belt truss according to claim 4, characterized in that: The rod unit (501) comprises a support sheet (5011) and a fourth connection portion (5012), the support sheet (5011) is located above the fourth connection portion (5012), and the length of the support sheet (5011) is adapted to the distance between the two positioning units (302); Along the direction from the first column frame assembly (3) to the second column (1) assembly, the height of the support plate (5011) gradually decreases, that is, the height of the support plate (5011) close to the first column frame assembly (3) is higher than the height of the support plate (5011) close to the second column (1) assembly.

6. The tire frame for pre-assembly of the belt truss according to claim 4, characterized in that: A first cutting groove (6) is provided at the middle position of the top of each of the first supporting portion (3013) and the second supporting portion (3023), and the first cutting groove (6) is arranged in an arc shape.

7. The tire frame for pre-assembly of the belt truss according to claim 5, characterized in that: The first connection part (3012), the second connection part (3022), the third connection part (4011) and the fourth connection part (5012) are all configured as H-shaped steel.

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