Jig frame device suitable for suspended steel structure construction and construction technology

Abstract

The invention discloses a jig frame device suitable for construction of a suspended steel structure and a construction technology, and the jig frame device comprises a jig frame body, and a mounting platform is arranged on the top surface of the jig frame body; the supporting pieces are arranged on the mounting platform, and supporting plates are arranged at the top ends of the multiple supporting pieces; and the jacking mechanism is detachably arranged on the mounting platform, and the jacking mechanism is located in the center of the area among the multiple supporting pieces. The jig frame body and the supporting piece provide rigid supporting, after building is completed, the jacking mechanism is installed on the jig frame body to assist in disassembling the jig frame device, and the construction quality is ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of construction, and in particular relates to a cradle device and a construction process suitable for the construction of a suspended steel structure. Background Art

[0002] Suspended buildings generally refer to innovative architectural forms that achieve the effect of a building being "off the ground" through visual effects or hanging structures. For example, a suspended building is built between two normal buildings, and the construction of the suspended building is carried out after the extension of the normal building is used to build a construction platform. The construction platform is a suspended steel structure, which is generally built on a tire frame. The tire frame is a key temporary support structure. After the construction of the suspended steel structure is completed, the tire frame needs to be removed to allow the steel structure to sink into place and finally complete the construction of the suspended steel structure. Existing tire frame structures are commonly rigid supports or adjustable supports. The tire frame with rigid support is a rigid frame as a whole, which has a good support effect, but it is more troublesome to dismantle it later, and it is difficult to control the sinking of the suspended steel structure after it is built. The tire frame with adjustable support is supported by hydraulic jacks or other similar devices to adapt to the support effect of different heights, but there are certain risks, and there is also the possibility of changes in the support height during construction, which is not suitable for the construction of suspended steel structures. Based on this, the present invention proposes a tire frame device specifically for building suspended steel structures to solve the above problems. Summary of the Invention

[0003] In order to solve the above technical problems, the purpose of the present invention is to provide a tire frame device and construction process suitable for the construction of suspended steel structures. The tire frame body and support members provide rigid support. After the construction is completed, a jacking mechanism is installed on the tire frame body to assist in dismantling the tire frame device to ensure the construction quality.

[0004] In order to achieve the above-mentioned object of the invention, the technical solution adopted by the present invention is as follows:

[0005] In a first aspect of the present invention, the present invention provides a tire frame device suitable for suspended steel structure construction, comprising:

[0006] The tire frame body has a mounting platform on the top surface;

[0007] Support members are arranged on the mounting platform, and support plates are arranged on the top ends of the plurality of support members;

[0008] The jacking mechanism is detachably arranged on the installation platform, and the jacking mechanism is located at the center of the area between the multiple support members.

[0009] Preferably, the tire frame body includes a base, columns, side cross bars, side oblique bars, a middle cross bar and a mounting platform, a plurality of the columns are vertically arranged on the base, the mounting platform is arranged on the top surfaces of the plurality of columns, along the length direction of the columns, a plurality of parallel side cross bars are arranged from bottom to top between two adjacent columns, a side oblique bar is arranged between two upper and lower adjacent side cross bars, the inclination directions of the two upper and lower adjacent side oblique bars are opposite, the inclination angles of the plurality of side oblique bars at the same height are the same, and one or more middle cross bars are arranged between the plurality of side cross bars at the same height.

[0010] More preferably, a plurality of reinforcing rods are provided between each of the columns and the base, and the plurality of reinforcing rods are evenly arranged around one column, with the top ends of the reinforcing rods connected to the sides of the columns and the bottom ends of the reinforcing rods connected to the base.

[0011] More preferably, the tire frame body also includes a cage ladder, which is vertically arranged on the base, the bottom end of the cage ladder is fixedly connected to the base, and the top side of the cage ladder is fixedly connected to the side of the installation platform.

[0012] More preferably, the tire frame device further includes a bottom support frame, the bottom support frame is arranged below the base, and the bottom support frame is fixedly connected to the base.

[0013] In a second aspect of the present invention, a construction process for a suspended steel structure is provided, wherein the suspended steel structure is constructed between two or more buildings, as follows:

[0014] S1. Install multiple tire frame bodies on the ground in the construction area, and adjust the heights of the mounting platforms of the tire frame bodies so that the mounting platforms of the multiple tire frame bodies are at the same height;

[0015] S2. Weld support members on the mounting platform of the tire frame body, set support plates on top of the support members, and build a steel structure on the support plates as a subsequent construction platform;

[0016] S3. After the steel structure is constructed, the steel structure is lifted up by the jacking mechanism of the multiple cradle devices. After the load is transferred from the support member to the jacking mechanism, the connection constraint between the support plate on the top surface of the support member and the steel structure is released, and the support plate is removed to separate the support member from the steel structure.

[0017] S4. The jacking mechanisms of the multiple cradle devices are lowered synchronously multiple times, so that the steel structure sinks into place, and the jacking mechanisms are lowered and separated from the steel structure;

[0018] S5. Remove the jacking mechanism and the tire frame device to complete the construction of the suspended steel structure.

[0019] Preferably, in step S2, the height difference between the top surfaces of the support plates at the top ends of the support members is ≤30 mm.

[0020] Preferably, in step S2, strain gauges are provided at the stress points of the support members and the tire frame body to monitor changes of the tire frame body and the support members during the process of erecting the steel structure.

[0021] Preferably, in step S3, after the steel structure construction is completed, strain gauges are set at the stress points of the steel structure to monitor changes in the steel structure.

[0022] Preferably, in step S4, the speed of each descent of the steel structure is 0.005 m / s, and the height of each descent is ≤5 mm; after completing a descent, the height of the steel structure is maintained, and the elevation of the connection between each jacking mechanism and the steel structure is measured; the descent is repeated multiple times until the steel structure sinks into place.

[0023] Beneficial effects:

[0024] The tire frame device of the present invention includes a rigid support member and an adjustable jacking mechanism, which has the effects of both rigid support and flexible support. During the construction of the suspended steel structure, the support member mainly provides rigid support. After the construction of the steel structure is completed, the jacking mechanism is used for support, which facilitates the separation of the support member and the steel structure. The jacking mechanism is used to control the overall synchronous sinking of the steel structure into place, so as to improve construction efficiency and construction quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Shown is a schematic diagram of a tire carrier device of the present invention;

[0026] Figure 2 Shown is a horizontal cross-sectional schematic diagram of a tire carrier device of the present invention.

[0027] Reference numerals: 1-tire frame body, 2-support member, 3-lifting mechanism;

[0028] 11-installation platform, 12-base, 13-upright column, 14-side cross bar, 15-side diagonal bar, 16-middle cross bar, 17-reinforcement bar, 18-cage ladder, 19-bottom support frame, 21-support plate. DETAILED DESCRIPTION

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific embodiments of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings and other embodiments can be obtained based on these drawings without inventive work.

[0030] like Figure 1-2As shown, the present invention provides a treadmill device suitable for suspended steel structure construction, comprising a treadmill body 1, a support member 2, and a jacking mechanism 3. The top surface of the treadmill body 1 is provided with a mounting platform 11, the support member 2 is mounted on the mounting platform 11, and the jacking mechanism 3 is detachably mounted on the mounting platform 11. The support member 2 and the jacking mechanism 3 provide support during different stages of constructing the steel structure construction platform. The technical solution of the present invention will be described in detail below using a specific structure.

[0031] like Figure 1 As shown, one or more support members 2 are vertically arranged on the installation platform 11, and a support plate 21 is provided on the top of the support member 2. The support member 2 is used to support the steel structure, and multiple tire frame devices jointly support the entire steel structure to form a construction platform on the steel structure. Figure 1 The number of the middle supports 2 is two.

[0032] Furthermore, multiple auxiliary rods are provided on the side of support member 2, evenly distributed around support member 2 and arranged at an angle. The top ends of the auxiliary rods are fixedly connected to the side of support member 2, and the bottom ends of the auxiliary rods are fixedly connected to mounting platform 11. It is easy to understand that the connection point between the auxiliary rods and support member 2 can be close to the top end of support member 2 or close to the bottom end of support member 2, depending on the actual construction conditions. Since support member 2 needs to be removed after construction is completed, the connection point between the auxiliary rods and support member 2 is preferably no higher than the cutting point of support member 2 to reduce cutting operations and improve work efficiency.

[0033] The jacking mechanism 3 is preferably a hydraulic jack. When the support member 2 needs to be removed, the steel structure is first supported by the jacking mechanism 3, and the original rigid support is converted to the support of the jacking mechanism 3. After the support plate 21 is separated from the steel structure, the support plate 21 is removed. Preferably, the jacking mechanism 3 is set at the center position between multiple support members 2, equivalently replacing the support of multiple support members 2 and the steel structure. It is easy to understand that since the height of the jacking mechanism 3 is adjustable, the jacking mechanism 3 can also be put into use during the construction of the suspended steel structure. For example, when fixing the support plate 21 to the steel structure, if the position needs to be fine-tuned, the jacking mechanism 3 can first provide support, and then a support plate 21 of appropriate thickness can be selected, installed and fixed. Then, the jacking mechanism 3 can be separated from the steel structure and supported by the support member 2. The jacking mechanism 3 of the present invention can remain installed on the mounting platform 11 of the tire frame body 1, or it can be removed first according to the actual construction situation and then installed when needed.

[0034] Preferably, a jacking mechanism 3 is provided on each tire frame body 1. The height of the jacking mechanism 3 needs to be adjusted. When all the support members 2 are removed in the later stage of construction, the jacking mechanisms 3 on multiple tire frame bodies 1 need to move synchronously. If multiple jacking mechanisms 3 are also provided on each tire frame body 1, the difficulty of synchronous control increases.

[0035] like Figure 1-2 As shown, the tire frame body 1 includes a base 12, columns 13, side crossbars 14, side diagonal bars 15, a middle crossbar 16 and a mounting platform 11. A plurality of columns 13 are vertically arranged on the base 12, and the mounting platform 11 is arranged on the top surface of the plurality of columns 13. Along the length direction of the columns 13, a plurality of parallel side crossbars 14 are arranged from bottom to top between two adjacent columns 13. A side diagonal bar 15 is arranged between two upper and lower adjacent side crossbars 14. The inclination directions of the two upper and lower adjacent side diagonal bars 15 are opposite. The inclination angles of the plurality of side diagonal bars 15 at the same height are the same. One or more middle crossbars 16 are arranged between the plurality of side crossbars 14 at the same height. In the present invention, the side crossbars 14, the side diagonal bars 15 and the middle crossbar 16 play the role of reinforcing the tire frame body 1, connecting the plurality of columns 13 to form a whole, and preventing the tire frame body 1 from tilting and falling. The mounting platform 11 is disposed on the top of the column 13 and serves as a platform for mounting other components such as the support member 2 and the jacking mechanism 3 .

[0036] The number of the pillars 13 of the present invention is greater than or equal to 3. Figure 1 There are four central columns 13, and the interior space enclosed by these four columns 13 is a cuboid, i.e., its horizontal cross-section is rectangular. Four side crossbars 14 of the same height as the four columns 13 are connected end to end to form a rectangular space. Two central crossbars 16 are arranged crosswise within this rectangular space to enhance structural strength. It will be readily understood that the arrangement of the central crossbars 16 can be modified to accommodate a greater or lesser number of columns 13 or to accommodate different distribution positions of the columns 13, all with the goal of enhancing the structural strength of the tire frame body 1.

[0037] For the side cross bars 14, the side cross bars 14 at the same level have the same inclination angle and inclination direction, and the side cross bars 14 at the upper and lower adjacent levels have opposite inclination directions. In addition to improving the vertical strength of the tire frame body 1, it can also effectively prevent the tire frame body 1 from twisting.

[0038] Furthermore, multiple reinforcing rods 17 are arranged between each column 13 and the base 12. The multiple reinforcing rods 17 are evenly arranged around a column 13. The top end of the reinforcing rod 17 is connected to the side of the column 13, and the bottom end of the reinforcing rod 17 is connected to the base 12, effectively preventing the column 13 from tilting.

[0039] In some embodiments, the tire frame body 1 further includes a cage ladder 18, which is vertically arranged on the base 12. The bottom end of the cage ladder 18 is fixedly connected to the base 12, and the top side of the cage ladder 18 is fixedly connected to the side of the installation platform 11. The staff enters the installation platform 11 along the cage ladder 18 to install or remove the jacking mechanism 3 and install or remove the support member 2.

[0040] In some embodiments, the tire frame assembly further includes a bottom support frame 19. As shown, the bottom support frame 19 is disposed below the base 12 and is fixedly connected to the base 12. The function of the bottom support frame 19 is to adjust the height of the tire frame body 1. For uneven ground, by adding a bottom support frame 19 in a low-lying area, the mounting platforms 11 of all tire frame bodies 1 are at the same height. As shown, the bottom support frame 19 is composed of a frame and connecting rods. The connecting rods are disposed within the frame to enhance the overall strength of the frame.

[0041] In some embodiments, the tire frame assembly further includes a distance sensor, which is mounted on the mounting platform 11 and faces the steel structure. The distance sensor is used to detect the distance changes between the lifting mechanism 3 and the lowering mechanism, thereby controlling the synchronous movement of multiple lifting mechanisms 3. Specifically, using the lifting mechanism 3 as an example, when the steel structure is being lifted by the lifting mechanism 3, the distance sensor detects the distance to the steel structure as the zero point when the support member 2 is supporting the steel structure. This distance is then detected when the steel structure is being lifted by the lifting mechanism 3, facilitating the operation of multiple lifting mechanisms 3.

[0042] The tire frame device of the present invention includes a rigid support member 2 and an adjustable jacking mechanism 3, which has the effects of both rigid support and flexible support. During the construction of the suspended steel structure, the support member 2 mainly provides rigid support. After the construction of the steel structure is completed, the jacking mechanism 3 is used for support, which facilitates the separation of the support member 2 and the steel structure, and the jacking mechanism 3 is used to control the overall synchronous sinking of the steel structure to improve construction efficiency and construction quality.

[0043] Based on the tire frame device of the present invention, the present invention also proposes a construction process suitable for a suspended steel structure, which is used to construct a suspended steel structure between two or more buildings as follows:

[0044] S1. Install multiple tire frame bodies 1 on the ground in the construction area, and adjust the height of the mounting platforms 11 of the tire frame bodies 1 so that the mounting platforms 11 of the multiple tire frame bodies 1 are at the same height;

[0045] S2. Weld the support member 2 onto the mounting platform 11 of the tire frame body 1. Set a support plate 21 on the top of the support member 2. Adjust the thickness of the multiple support plates 21 until the top surfaces of the support plates 21 are at the same height. Build a steel structure on the support plates 21 as a subsequent construction platform.

[0046] S3. After the steel structure is constructed, the steel structure is lifted up by the jacking mechanism 3 of the multiple cradle devices. After the load is transferred from the support member 2 to the jacking mechanism 3, the connection constraint between the support plate 21 on the top surface of the support member 2 and the steel structure is released, and the support plate 21 is removed to separate the support member 2 from the steel structure.

[0047] S4, the jacking mechanisms 3 of the multiple tire frame devices are lowered synchronously multiple times, so that the steel structure sinks into place, and the jacking mechanisms 3 are lowered and separated from the steel structure;

[0048] S5. Remove the jacking mechanism 3 and the tire frame device to complete the construction of the suspended steel structure.

[0049] In the present invention, the steel structure is a construction platform for subsequent construction. The tire frame device of the present invention is used to build the construction platform. It is easy to understand that the steel structure is connected to the nearby buildings. When building the construction platform, the height of the construction platform is slightly higher than the height of the connection point with the nearby buildings. After the construction is completed, the jacking mechanism 3 is cooperated to make the construction platform sink into place as a whole and connect with the nearby buildings. Subsequently, construction is continued on the construction platform to complete the building.

[0050] In step S2, the height difference of the top surface of the support plate 21 at the top end of each support member 2 is ≤30 mm, so as to facilitate the subsequent synchronous lowering of the steel structure.

[0051] In step S2, strain gauges are set at the stress points of the support members 2 and the tire frame body 1 to monitor the changes of the tire frame body 1 and the support members 2 during the construction of the steel structure to ensure construction safety.

[0052] In step S3, since the support member 2 is welded and fixed to the steel structure through the support plate 21, the lifting action of the jacking mechanism 3 on the steel structure will not cause the steel structure to be separated from the support plate 21. The changes in the force exerted by the jacking mechanism 3 on the steel structure are monitored in real time through the built-in pressure detection equipment of the jacking mechanism 3. When the force exerted by the jacking mechanism 3 on the steel structure reaches the preset value, it indicates that the load has been transferred to the jacking mechanism 3.

[0053] In step S3, after the steel structure construction is completed, strain gauges are set at the stress points of the steel structure to monitor changes in the steel structure.

[0054] In step S4, the steel structure is stabilized while the lifting mechanism 3 lowers it, ensuring a slow transition from the construction state to the designed state. After the cradle assembly is removed, the steel structure is stabilized by internal and external connections and lowered to its designed initial position. Unloading the steel structure is a load transfer process, and this process adheres to the principle of "deformation coordination and unloading balance." The present invention achieves balanced load transfer through multiple cycles of micro-lowering.

[0055] In steps S3 and S4, strain gauges are set on the steel structure. When the jacking mechanism 3 makes the steel structure rise and fall, the changes of the steel structure are detected in real time, and the deformation of the steel structure is closely monitored. When an abnormality occurs, the jacking mechanism 3 is stopped to maintain the height of the steel structure. After the problem is eliminated, the jacking mechanism 3 continues to raise or lower the steel structure.

[0056] In step S4, the steel structure descends at a speed of 0.005 m / s, with each descent height ≤ 5 mm. After each descent, the height of the steel structure is maintained, and the elevation of each connection between the lifting mechanism 3 and the steel structure is measured. This descent is repeated multiple times until the steel structure is fully lowered. It is easy to understand that the maximum height to which the steel structure can descend is less than the thickness of the support plate 21, meaning that after the steel structure is fully lowered, it does not contact the top surface of the support member 2.

[0057] The embodiments provided by the present invention are described in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the core idea of ​​the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, the present invention can also be improved and modified in a number of ways, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A tire frame device suitable for the construction of suspended steel structures, characterized in that: include: The tire frame body (1) has a mounting platform (11) on its top surface; Support members (2) are arranged on the mounting platform (11), and support plates (21) are arranged on the top ends of the plurality of support members (2); A lifting mechanism (3) is detachably arranged on the installation platform (11), and the lifting mechanism (3) is located at the center of the area between the multiple support members (2).

2. The tire frame device suitable for suspended steel structure construction according to claim 1 is characterized in that: The tire frame body (1) comprises a base (12), columns (13), side cross bars (14), side oblique bars (15), a middle cross bar (16) and a mounting platform (11). A plurality of the columns (13) are vertically arranged on the base (12). The mounting platform (11) is arranged on the top surfaces of the plurality of columns (13). Along the length direction of the columns (13), a plurality of parallel side cross bars (14) are arranged from bottom to top between two adjacent columns (13). A side oblique bar (15) is arranged between two upper and lower adjacent side cross bars (14). The inclination directions of the two upper and lower adjacent side oblique bars (15) are opposite. The plurality of side oblique bars (15) at the same height have the same inclination angle. One or more middle cross bars (16) are arranged between the plurality of side cross bars (14) at the same height.

3. The tire frame device suitable for suspended steel structure construction according to claim 2 is characterized in that: A plurality of reinforcing rods (17) are also arranged between each column (13) and the base (12). The plurality of reinforcing rods (17) are evenly arranged around one column (13). The top end of the reinforcing rod (17) is connected to the side of the column (13), and the bottom end of the reinforcing rod (17) is connected to the base (12).

4. The tire frame device suitable for suspended steel structure construction according to claim 2 is characterized in that: The tire frame body (1) also includes a cage ladder (18), which is vertically arranged on the base (12), the bottom end of the cage ladder (18) is fixedly connected to the base (12), and the top side of the cage ladder (18) is fixedly connected to the side of the installation platform (11).

5. The tire frame device suitable for suspended steel structure construction according to claim 2 is characterized in that: The tire frame device further comprises a bottom support frame (19), wherein the bottom support frame (19) is arranged below the base (12), and the bottom support frame (19) is fixedly connected to the base (12).

6. A construction process, characterized in that: The cradle device according to any one of claims 1 to 5 is used to construct a suspended steel structure between two or more buildings as follows: S1. Arrange multiple tire frame bodies (1) on the ground in the construction area, and adjust the heights of the mounting platforms (11) of the tire frame bodies (1) so that the mounting platforms (11) of the multiple tire frame bodies (1) are at the same height; S2. Welding a support member (2) onto the mounting platform (11) of the tire frame body (1), setting a support plate (21) on the top of the support member (2), and building a steel structure on the support plate (21) as a subsequent construction platform; S3. After the steel structure construction is completed, the steel structure is lifted up by the lifting mechanism (3) of the multiple cradle devices. After the load is transferred from the support member (2) to the lifting mechanism (3), the connection constraint between the support plate (21) on the top surface of the support member (2) and the steel structure is released, and the support plate (21) is removed to separate the support member (2) from the steel structure. S4, the jacking mechanisms (3) of the plurality of tire frame devices are lowered synchronously multiple times, so that the steel structure is sunk into place, and the jacking mechanisms (3) are lowered and separated from the steel structure; S5. Remove the jacking mechanism (3) and the tire frame device to complete the construction of the suspended steel structure.

7. The construction process according to claim 6, characterized in that: In step S2, the height difference of the top surface of the support plate (21) at the top end of each support member (2) is ≤30 mm.

8. The construction process according to claim 6, characterized in that: In step S2, strain gauges are provided at the stress points of the support member (2) and the tire frame body (1) to monitor changes in the tire frame body (1) and the support member (2) during the process of erecting the steel structure.

9. The construction process according to claim 8, characterized in that: In step S3, after the steel structure construction is completed, strain gauges are set at the stress points of the steel structure to monitor changes in the steel structure.

10. The construction process according to claim 6, characterized in that: In step S4, the steel structure descends at a speed of 0.005 m / s each time, and the height of each descent is ≤5 mm; after completing a descent, the height of the steel structure is maintained, and the elevation of the connection between each jacking mechanism (3) and the steel structure is measured; the descent is repeated multiple times until the steel structure sinks into place.

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