Height-adjustable temporary supporting system and adjusting method

Abstract

The invention provides a height-adjustable temporary supporting system and an adjusting method, and belongs to the technical field of building construction, the height-adjustable temporary supporting system comprises a plurality of height adjusting units, and the height adjusting units are stacked in the vertical direction to form a main body support; a connecting structure is arranged on the side surface of the height adjusting unit, so that the height adjusting unit can extend in the horizontal direction; the supporting platform is fixedly mounted at the top of the main body support; through the double-main-body supporting structure, the two main bodies are supported to form a main body, the overall stability is higher, the structure is relatively compact after assembly, and the space utilization rate is relatively high; by arranging the protection structure, the situation that the truss is damaged when the adjusting pipe is cut off, the adjusting pipe is cut by adopting oxygen-propane cutting equipment during cutting off, cutting is conducted around the adjusting pipe circle by circle during cutting, the temperature is too high during cutting off, and the truss is prone to being damaged is avoided, and by arranging the protection structure, the risk of damage to the truss can be greatly reduced.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to a temporary support system with adjustable height and an adjustment method. Background Art

[0002] When constructing the main structure of the exhibition hall, some large building components, such as trusses and roof trusses, cannot immediately rely on their own structures to maintain stability during the installation process. Temporary supports can provide reliable support for these components before they are in place and fixed, ensuring that they are spliced ​​and connected in the correct position, and ensuring the accuracy and safety of the main structure construction.

[0003] Most of the existing temporary supports have fixed lengths of vertical and horizontal bars, and their height can only be adjusted according to a fixed module. Although such temporary supports cannot achieve continuous and arbitrary height adjustment, they have better stability and load-bearing effects, and are therefore more suitable for use in exhibition hall construction.

[0004] The height of each height adjustment unit is fixed, and the temporary support is formed by assembling several height adjustment units. When the distance between the top height adjustment unit and the truss is less than the height of one height adjustment unit, it is necessary to set a support rod between the top height adjustment unit and the truss to play a supporting and load-bearing role.

[0005] But some problems were found during use:

[0006] 1. In some scenarios, the distance between the top height adjustment unit and the truss is relatively far, resulting in a relatively long length of the support rod. When subjected to pressure, buckling instability is more likely to occur. In actual construction, once external factors such as wind and construction vibration interfere, the overly long support rod may suddenly bend and deform, destroying the stability of the entire support system, posing certain safety hazards.

[0007] 2. The support rods are connected to the height adjustment unit and truss at the top by welding to improve the support stability and connection strength, but there are also obvious defects: first, when dismantling the temporary support, it is necessary to cut off the welded support rods and cut the top of the support rods with oxygen-propane cutting equipment. Since the support rods are in direct contact with the trusses, there is a risk of cutting the trusses during cutting, and high temperature can easily affect the trusses; secondly, after the support rods are cut, their length is shortened, and the cut support rods cannot be reused, but most of the support rods are relatively long, which leads to waste.

[0008] 3. As it is an exhibition hall building, there are many steel structures and they are heavy. As each height adjustment unit is of fixed size, the size of the height adjustment unit cannot be adjusted and its load-bearing capacity is also fixed. However, some positions are subjected to relatively large forces and one set of temporary supports cannot meet the requirements. Two sets of temporary supports are required for joint support. However, the two sets of temporary supports not only occupy a large space, but also lack synergy when facing large horizontal loads, such as strong winds, earthquake force simulation vibrations, etc., and are prone to inconsistent displacements, resulting in reduced stability of the overall support system. Summary of the invention

[0009] The invention provides a temporary support system with adjustable height and an adjustment method to solve the technical problems in the prior art.

[0010] In order to solve the above problems, the temporary support system with adjustable height provided by the present invention adopts the following technical solution: it comprises a plurality of height adjustment units, which are stacked and arranged in the up and down directions to form a main support; a connecting structure is provided on the side of the height adjustment unit so that the height adjustment unit can extend in the horizontal direction;

[0011] A support platform, the support platform is fixedly mounted on the top of the main support;

[0012] A support assembly, which is used to connect the main support and the truss to support the truss; the support assembly includes a bottom support rod fixedly installed on the support platform, a horizontal support rod fixedly installed on the top of the bottom support rod, an adjustment tube fixedly installed on the top of the horizontal support rod, and the adjustment tube is fixedly connected to the bottom of the truss;

[0013] The top support rod is fixedly installed at the top four corners of the supporting platform, and the top end of the top support rod is fixedly connected to the top of the truss.

[0014] As a further improvement, the height adjustment unit includes a vertical load-bearing rod and a horizontal load-bearing rod, the top of the vertical load-bearing rod is fixedly connected with a connecting block, and an oblique reinforcement rod is also fixedly connected between two adjacent vertical load-bearing rods.

[0015] As a further improvement, the connecting blocks are provided at least on three sides of the vertical load-bearing rod, so that the height adjustment unit can extend in the horizontal direction.

[0016] As a further improvement, the length of the bottom support rod is greater than the length of the adjusting tube.

[0017] As a further improvement, the horizontal support rod is an I-beam.

[0018] As a further improvement, a plurality of protective structures for protecting the trusses are fixedly mounted on the trusses.

[0019] As a further improvement, the protective structure includes an upper shell and a lower shell installed on the truss, and the upper shell and the lower shell are fixedly connected by bolts.

[0020] As a further improvement, a heat insulation layer is provided between the lower shell and the truss.

[0021] The present invention also provides a method for adjusting a temporary support system with adjustable height, using the temporary support system with adjustable height, comprising the following steps:

[0022] S1. Excavate the foundation pit and build the base;

[0023] S2. Build the main support, build a height adjustment unit on the base, the horizontal load-bearing rod is fixedly connected to the vertical load-bearing rod through a connecting block, and the oblique reinforcement rod is fixedly installed between the two vertical load-bearing rods through a connecting block;

[0024] Build the height adjustment units in sequence in the up and down directions until the height between the bottom of the truss and the top of the uppermost height adjustment unit is less than the height of one height adjustment unit, then stop building the height adjustment units to form the main support;

[0025] If one set of main supports cannot meet the support requirements, build another set of main supports on one side of the main supports;

[0026] S3. Fix and install the support platform on the top of the main support;

[0027] S4. Install the support assembly on the support platform, the bottom support rod is fixedly installed on the support platform along the vertical direction, the horizontal support rod set in the horizontal direction is fixedly installed on the top of the bottom support rod, the adjustment tube set in the vertical direction is fixedly installed on the top of the horizontal support rod, and the top of the adjustment tube is fixedly connected to the bottom of the truss.

[0028] As a further improvement, in S4, a protective structure is fixedly installed on the truss, and the adjusting pipe is fixedly connected to the protective structure.

[0029] The beneficial effects of the above technical solution of the present invention are as follows:

[0030] 1. The present invention adds a connecting block to the vertical load-bearing rod so that the main support can be extended in the horizontal direction. In this way, when a single main support cannot meet the support requirements, a group of main supports can be extended on one side of the main support to form a double main support structure. The two main supports form a main body, which has stronger overall stability, and the structure is relatively compact after assembly, and the space utilization rate is relatively higher.

[0031] 2. The support assembly of the present invention comprises three parts: a bottom support rod, a horizontal support rod and an adjustment tube, which shortens the length of the support rod originally used for support, reduces the risk of bending and instability of the support rod when disturbed by external factors, and thereby improves the stability of the support assembly.

[0032] When the temporary support is used up, the adjustment tube needs to be cut off. After the adjustment tube is cut off, it is difficult to use it in other venues during the same period due to its shortened length. However, due to the bottom support rod and the horizontal support rod, the length of the adjustment tube is greatly shortened, thereby reducing waste. After the adjustment tube is cut off, the remaining adjustment tube on the upper surface of the horizontal support rod is cut off and smoothed, and the bottom support rod and the horizontal support rod can be reused. When there are many venues in the same construction project, this structure can reduce some unnecessary waste.

[0033] 3. By setting up a protective structure, the truss can be prevented from being damaged when the regulating tube is cut. The regulating tube is cut with oxygen-propane cutting equipment, and the cutting is carried out in circles around the regulating tube. The temperature is too high during cutting, which can easily damage the truss. By setting up a protective structure, the risk of damaging the truss can be greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0035] Figure 1 It is a structural schematic diagram of a height adjustment unit of a temporary support system with adjustable height according to the present invention;

[0036] Figure 2 It is an exploded schematic diagram of a height adjustment unit of the height-adjustable temporary support system of the present invention;

[0037] Figure 3 A reference diagram of the use state of the height-adjustable temporary support system of the present invention;

[0038] Figure 4 It is a structural schematic diagram of a temporary support system with adjustable height according to the present invention;

[0039] Figure 5 It is a structural schematic diagram of a double-body support of a temporary support system with adjustable height of the present invention;

[0040] Figure 6 It is a partial structural schematic diagram of the temporary support system with adjustable height of the present invention;

[0041] Figure 7 for Figure 6 A magnified view of part A;

[0042] Figure 8 It is a structural schematic diagram of the protective structure of the temporary support system with adjustable height of the present invention;

[0043] Fig. 9 for Figure 8 A magnified view of part B;

[0044] Fig.10 It is a structural schematic diagram of Embodiment 2 of the temporary support system with adjustable height of the present invention;

[0045] Fig.11 for Fig.10 II sectional view;

[0046] Description of reference numerals:

[0047] 1. Height adjustment unit; 11. Vertical load-bearing rod; 12. Oblique reinforcement rod; 13. Horizontal load-bearing rod; 14. Connecting block; 2. Support platform; 3. Top support rod; 4. Truss; 41. Code plate; 5. Support assembly; 51. Bottom support rod; 52. Horizontal support rod; 53. Adjustment tube; 6. Protection structure; 61. Upper shell; 62. Lower shell; 621. L-shaped plate; 63. Insulation layer. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0049] In the prior art, temporary supports mainly have the following problems: First, in some scenarios, the distance between the top height adjustment unit and the truss is relatively far, resulting in a relatively long length of the required support rod. When subjected to pressure, buckling instability is more likely to occur; second, the support rods are respectively connected to the top height adjustment unit and the truss by welding, and there is a risk of cutting the truss when removing the temporary support; third, in some special scenarios, the current main support is difficult to meet the support requirements. If two sets of main supports are directly used, the space occupied will be large. In addition, when facing large horizontal loads, such as strong winds, earthquake force simulation vibrations, etc., there is a lack of synergy between them, and it is easy to have inconsistent displacements, resulting in a decrease in the stability of the overall support system.

[0050] In view of the above problem, the present invention adds a connecting block to the vertical load-bearing rod so that the main support can be extended in the horizontal direction. In this way, when a single main support cannot meet the support requirements, a group of main supports can be extended on one side of the main support to form a double main support structure. The two main supports form a main body, which has stronger overall stability, and the structure is relatively compact after assembly, and the space utilization rate is relatively higher.

[0051] Secondly, the original support rod is replaced with a support assembly, which consists of three parts: a bottom support rod, a horizontal support rod and an adjustment tube. This shortens the length of the support rod originally used for support, reduces the risk of the support rod bending and becoming unstable when disturbed by external factors, and thereby improves the stability of the support assembly.

[0052] When the temporary support is used up, the adjustment tube needs to be cut off. After the adjustment tube is cut off, it is difficult to use it in other venues during the same period due to its shortened length. However, due to the bottom support rod and the horizontal support rod, the length of the adjustment tube is greatly shortened, thereby reducing waste. After the adjustment tube is cut off, the remaining adjustment tube on the upper surface of the horizontal support rod is cut off and smoothed, and the bottom support rod and the horizontal support rod can be reused. When there are many venues in the same construction project, this structure can reduce some unnecessary waste.

[0053] Finally, a protective structure is set up to prevent the truss from being damaged when the regulating tube is cut. The regulating tube is cut with oxygen-propane cutting equipment, and the cutting is carried out in circles around the regulating tube. The temperature is too high during cutting, which can easily damage the truss. The risk of damaging the truss can be greatly reduced by setting up a protective structure.

[0054] After introducing the basic principle of the present invention, various non-limiting embodiments of the present invention are described in detail below. The number of any element in the drawings is for illustration and not for limitation, and any naming is only for distinction and does not have any limiting meaning.

[0055] The principle and spirit of the present invention are explained in detail below with reference to several representative embodiments of the present invention.

[0056] Embodiment 1 of the temporary support system with adjustable height provided by the present invention:

[0057] like Figure 1-Figure 11 As shown, it includes a plurality of height adjustment units 1, which are stacked in the up and down directions to form a main body support; in this embodiment, a connecting structure is provided on the side of the height adjustment unit 1, so that the height adjustment unit 1 can extend in the horizontal direction; in this embodiment, the connecting structure is a connecting block 14.

[0058] The height adjustment unit 1 includes a vertical load-bearing rod 11 and a horizontal load-bearing rod 13. A connecting block 14 is fixedly connected to the top of the vertical load-bearing rod 11, and an oblique reinforcement rod 12 is fixedly connected between two adjacent vertical load-bearing rods 11. The vertical load-bearing rod 11, the horizontal load-bearing rod 13 and the oblique reinforcement rod 12 are all connected by bolts, and the specific connection is the prior art, and the present application does not modify the connection, and the specific construction and connection are not repeated here.

[0059] The connecting blocks 14 are provided at least on three sides of the vertical load-bearing rod 11 . In other embodiments, the connecting blocks 14 may also be provided on four sides of the vertical load-bearing rod 11 .

[0060] A support platform 2, the support platform 2 is fixedly installed on the top of the main support;

[0061] like Figure 6 and Figure 7 As shown, the support assembly 5 is used to connect the main support and the truss 4 to support the truss 4; the support assembly 5 includes a bottom support rod 51 fixedly installed on the support platform 2, a horizontal support rod 52 is fixedly installed on the top of the bottom support rod 51, and an adjustment tube 53 is fixedly installed on the top of the horizontal support rod 52, and the adjustment tube 53 is fixedly connected to the bottom of the truss 4;

[0062] In this embodiment, the bottom support rod 51 and the horizontal support rod 52 are both made of I-beams, and the adjustment tube 53 is made of a hollow steel tube. There are four bottom support rods 51, and two horizontal support rods 52 are provided. The horizontal support rods 52 are overlapped between the bottom support rods 51. In this embodiment, the bottom support rod 51 and the horizontal support rod 52 are connected by welding, and the bottom support rod 51 is connected to the support platform 2 by bolts for easy disassembly.

[0063] The length of the bottom support rod 51 is greater than that of the adjustment tube 53 , which reduces waste while ensuring the supporting effect.

[0064] The top support rod 3 is fixedly installed at the top four corners of the support platform 2 , and the top end of the top support rod 3 is fixedly connected to the top of the truss 4 .

[0065] A plurality of protective structures 6 for protecting the trusses 4 are fixedly mounted on the trusses 4 .

[0066] The protective structure 6 includes an upper shell 61 and a lower shell 62 mounted on the truss 4. The upper shell 61 and the lower shell 62 are fixedly connected by bolts. After the upper shell 61 and the lower shell 62 are connected by bolts, they are fixed on the truss 4 by friction. The thickness of the upper shell 61 or the lower shell 62 is 20 mm, and the material is steel plate.

[0067] The protective structure 6 avoids opening holes on the truss 4 through the assembled structure. At the same time, when the adjusting tube 53 is cut off, due to the protection of the protective structure 6, direct contact with the truss 4 is avoided, thereby reducing the safety hazard of the truss 4.

[0068] A heat insulating layer 63 is provided between the lower shell 62 and the truss 4. High temperature will be generated during the cutting process, and the heat insulating layer 63 can reduce the impact on the truss 4. In this embodiment, the heat insulating layer 63 is made of ceramic fiber felt or rock wool board.

[0069] In this embodiment, the protective structure 6 is connected to the adjusting tube 53 by welding, and the protective structure 6 is connected to the top support rod 3 by bolts. Since the adjusting tube 53 plays the main support, the protective structure 6 is welded to the adjusting tube 53 in this embodiment to improve stability.

[0070] This embodiment also provides a method for adjusting a temporary support system with adjustable height, using the temporary support system with adjustable height, comprising the following steps:

[0071] S1, excavating a foundation pit and building a base. In this embodiment, the base adopts a roadbed box;

[0072] S2, build the main support, build the height adjustment unit 1 on the base, the horizontal load-bearing rod 13 is fixedly connected to the vertical load-bearing rod 11 through the connecting block 14, and the oblique reinforcement rod 12 is fixedly installed between the two vertical load-bearing rods 11 through the connecting block 14;

[0073] The height adjustment units 1 are sequentially built in the up and down directions until the height between the bottom of the truss 4 and the top of the uppermost height adjustment unit 1 is less than the height of one height adjustment unit 1, and then the height adjustment units 1 are stopped to form the main support;

[0074] If one set of main supports cannot meet the support requirements, build another set of main supports on one side of the main supports;

[0075] S3, fixing and installing the support platform 2 on the top of the main support;

[0076] S4. Install the support assembly 5 on the support platform 2. The bottom support rod 51 is fixedly installed on the support platform 2 along the vertical direction. A horizontal support rod 52 set in the horizontal direction is fixedly installed on the top of the bottom support rod 51. An adjusting tube 53 set in the vertical direction is fixedly installed on the top of the horizontal support rod 52. The top of the adjusting tube 53 is fixedly connected to the bottom of the truss 4.

[0077] In S4 , the protective structure 6 is fixedly installed on the truss 4 , and the adjusting pipe 53 is fixedly connected to the protective structure 6 .

[0078] During subsequent dismantling, ① before unloading, a jacking device is installed on the supporting platform 2 and is pressed tightly against the bottom of the truss 4 (four 50t jacks are installed at the interface of the truss 4);

[0079] ② Use oxygen-propane cutting equipment to cut the top of the adjustment tube 53. Cutting is done in circles around the support tube. The amount of cutting each time is not more than 5mm. It is best to cut off the molten iron. After the adjustment tube 53 is separated from the bottom of the truss 4 (i.e., the lower chord of the truss 4) and there is a certain gap (not more than 5mm), slowly lower the jack to make the truss 4 and the adjustment tube 53 contact again.

[0080] ④ Continue to use oxygen-propane cutting equipment to cut the top of the regulating tube 53, and then lower the jack after there is a gap. Repeat this process until the unloading work is completed. After each level of unloading, stop for 1 hour and wait for the data collection and analysis to be normal before proceeding to the next level of unloading.

[0081] Embodiment 2 of the temporary support system with adjustable height provided by the present invention:

[0082] The main difference between it and Example 1 is:

[0083] like Fig.10 and Fig.11 As shown, in this embodiment, the adjusting tube 53 is directly welded to the bottom of the truss 4, the top support rod 3 is welded to the top of the truss 4, the lower shell 62 is composed of two L-shaped plates 621, and the L-shaped plate 621 is provided with an opening that cooperates with the adjusting tube 53 or the top support rod 3.

[0084] This embodiment is suitable for situations where high stability is required, such as in severe weather or in earthquake zones. In this case, due to the protection of the two L-shaped plates 621, the temporary support will basically not damage the truss 4 when it is cut.

[0085] Although this specification has shown and described a plurality of embodiments of the present invention, it is obvious to those skilled in the art that such embodiments are provided by way of example only. Those skilled in the art will think of many changes, modifications and alternatives without departing from the thought and spirit of the present invention. It should be understood that in the process of practicing the present invention, various alternatives to the embodiments of the present invention described herein may be adopted. The attached claims are intended to define the scope of protection of the present invention, and therefore cover the modular composition, equivalent or alternatives within the scope of protection of these claims.

Claims

1. A temporary support system with adjustable height, characterized in that: include: A plurality of height adjustment units (1), the height adjustment units (1) being stacked in an up-and-down direction to form a main body support; a connecting structure is provided on the side of the height adjustment unit (1), so that the height adjustment unit (1) can extend in a horizontal direction; A support platform (2), the support platform (2) being fixedly mounted on the top of the main support; A support assembly (5) is used to connect the main support and the truss (4) to support the truss (4); the support assembly (5) comprises a bottom support rod (51) fixedly mounted on the support platform (2), a horizontal support rod (52) fixedly mounted on the top of the bottom support rod (51), an adjustment tube (53) fixedly mounted on the top of the horizontal support rod (52), and the adjustment tube (53) is fixedly connected to the bottom of the truss (4); A top support rod (3) is fixedly mounted at the top four corners of the support platform (2), and the top end of the top support rod (3) is fixedly connected to the top of the truss (4).

2. The height-adjustable temporary support system according to claim 1, characterized in that: The height adjustment unit (1) comprises a vertical load-bearing rod (11) and a horizontal load-bearing rod (13); a connecting block (14) is fixedly connected to the top of the vertical load-bearing rod (11); and an oblique reinforcement rod (12) is also fixedly connected between two adjacent vertical load-bearing rods (11).

3. The height-adjustable temporary support system according to claim 2, characterized in that: The connecting blocks (14) are arranged at least on three sides of the vertical load-bearing rod (11), so that the height adjustment unit (1) can extend in the horizontal direction.

4. The height-adjustable temporary support system according to claim 1, characterized in that: The length of the bottom support rod (51) is greater than the length of the adjustment tube (53).

5. The height-adjustable temporary support system according to claim 1, characterized in that: The horizontal support rod (52) is an I-beam.

6. The height-adjustable temporary support system according to claim 1, characterized in that: A plurality of protective structures (6) for protecting the trusses (4) are fixedly mounted on the trusses (4).

7. The height-adjustable temporary support system according to claim 6, characterized in that: The protective structure (6) comprises an upper shell (61) and a lower shell (62) mounted on the truss (4); the upper shell (61) and the lower shell (62) are fixedly connected by bolts.

8. The height-adjustable temporary support system according to claim 7, characterized in that: A heat insulation layer (63) is provided between the lower shell (62) and the truss (4).

9. A method for adjusting a temporary support system with adjustable height, using the temporary support system with adjustable height as described in any one of 1 to 8 above, characterized in that: The following steps are involved: S1. Excavate the foundation pit and build the base; S2, constructing the main support, constructing the height adjustment unit (1) on the base, the horizontal load-bearing rod (13) is fixedly connected to the vertical load-bearing rod (11) through the connecting block (14), and the oblique reinforcement rod (12) is fixedly installed between the two vertical load-bearing rods (11) through the connecting block (14); The height adjustment units (1) are sequentially constructed in the up-down direction until the height between the bottom of the truss (4) and the top of the uppermost height adjustment unit (1) is less than the height of one height adjustment unit (1), and then the construction of the height adjustment units (1) is stopped to form a main body support; If one set of main supports cannot meet the support requirements, build another set of main supports on one side of the main supports; S3, fixing and installing the support platform (2) on the top of the main support; S4. Install the support assembly (5) on the support platform (2), wherein the bottom support rod (51) is fixedly installed on the support platform (2) in a vertical direction, a horizontal support rod (52) arranged in a horizontal direction is fixedly installed on the top of the bottom support rod (51), and an adjustment tube (53) arranged in a vertical direction is fixedly installed on the top of the horizontal support rod (52), and the top of the adjustment tube (53) is fixedly connected to the bottom of the truss (4).

10. The method for adjusting the height-adjustable temporary support system according to claim 9, characterized in that: In S4, a protective structure (6) is fixedly mounted on the truss (4), and the regulating pipe (53) is fixedly connected to the protective structure (6).

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