A temporary support device for double X-column installation

Abstract

The present invention provides a temporary support device for double X-column installation, belonging to the technical field of double X-columns. The temporary support device for double X-column installation includes an annular foundation, a double X-column, and a support mechanism. A pier is cast on the surface of the annular foundation, the double X-column is installed on the surface of the pier, and an integral steel ring beam is connected to the surface of the double X-column. The support mechanism is installed on the right part of the annular foundation, and the support mechanism includes a temporary support foundation, a short support column, and a long support column. By setting the support mechanism, the present invention adopts two sets of supports. Among them, the long support column serves as the main load-bearing structure and bears more than 70% of the vertical load; the double-point short support column shares the remaining vertical load and absorbs horizontal forces such as wind load and lifting yaw force through the first intersection, forming a "main-assistant collaborative" force mechanism to avoid the risk of overloading of a single support. Moreover, the two support points of the short support column spread the local stress to adjacent pipe sections, reducing the stress concentration coefficient and increasing the stability of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of double X-columns, and more particularly to a temporary support device for installing double X-columns. Background Art

[0002] In recent years, the double X-shaped concrete-filled steel tube column structure has been widely used in domestic thermal power building designs. Such a structure forms a spatial grid system through the welding of double X-shaped steel tubes and is filled with concrete inside to enhance the bearing capacity. This design has advantages such as excellent mechanical properties, strong seismic resistance, and high durability. However, with the expansion of building scale, the technical complexity of double X-shaped concrete-filled steel tube columns has increased significantly. In current domestic typical projects, the height of a single double X-column generally exceeds 30 meters, the pipe diameter is more than 1.3 meters, and the wall thickness is more than 18 millimeters. The weight of the overall double X reaches more than 50 tons after welding a unit. The hoisting and temporary fixing of such giant components have become key construction difficulties.

[0003] In the prior art, multi-point independent steel frame supports or guy ropes are mostly used for auxiliary fixing, but there are the following defects: the lateral support force is insufficient, resulting in easy deviation of the unit caused by wind load or hoisting disturbance, and repeated adjustment of the positioning is required. Moreover, after the construction is completed, due to the large height of the double X-column, it is inconvenient to disassemble the support column, which is inconvenient for construction. Summary of the Invention

[0004] To make up for the above deficiencies, the present invention provides a temporary support device for installing double X-columns that overcomes the above technical problems or at least partially solves the above problems.

[0005] The present invention is implemented as follows:

[0006] The present invention provides a temporary support device for installing double X-columns, including an annular foundation, a double X-column, and a support mechanism. A pier is cast on the surface of the annular foundation, the double X-column is installed on the surface of the pier, a whole steel ring beam is connected to the surface of the double X-column, and the support mechanism is installed on the right part of the annular foundation for temporarily supporting the double X-column. The support mechanism includes:

[0007] A temporary support foundation, which is cast on the right part of the annular foundation. A connecting piece is embedded in the inner cavity of the temporary support foundation, and a first connecting plate is fixedly installed on the surface of the connecting piece;

[0008] Short support columns, which are symmetrically installed on the surfaces of two of the temporary support foundations, and one end of each short support column is hinged to the double X-column;

[0009] Long support columns, which are installed on the surface of one of the temporary support foundations, and one end of each long support column is hinged to the double X-column.

[0010] In a preferred embodiment, the double X-columns are formed with a first intersection and a second intersection on their surfaces. A second connecting plate is fixedly installed at the bottom of the short support column. A bolt is connected between the second connecting plate and the first connecting plate. A first connecting ear is fixedly installed on the surface of the short support column. A first connecting block is fixedly installed on the side wall of the first intersection. A pin shaft is rotatably installed between the first connecting ear and the first connecting block.

[0011] In a preferred embodiment, a third connecting plate is fixedly installed at the bottom of the long support column. A bolt is connected between the third connecting plate and the first connecting plate.

[0012] In a preferred embodiment, a connecting seat is fixedly installed on the surface of the long support column. A second connecting ear is fixedly installed on the surface of the connecting seat. A second connecting block is fixedly installed on the side wall of the second intersection. The second connecting block is hinged to the second connecting ear.

[0013] By setting up the support mechanism, two sets of supports are adopted, one long support column plus a set of short support columns, which is relatively safe and simple. The long support column serves as the main load-bearing structure and bears more than 70% of the vertical load. The double-pivot short support column shares the remaining vertical load and absorbs horizontal forces such as wind load and lifting yaw force through the first intersection, forming a "main - auxiliary collaborative" force mechanism to avoid the risk of overloading of a single support. Moreover, the two pivots of the short support column disperse the local stress to adjacent pipe sections, reducing the stress concentration coefficient and increasing the stability of the device.

[0014] In a preferred embodiment, a transverse pulling mechanism is installed on the surface of the temporary support foundation for providing transverse support force. The transverse pulling mechanism includes a strengthening column, a fourth connecting plate, and a transverse pull rod. The strengthening column is welded to the side of the connecting piece. A fourth connecting plate is fixedly installed at one end of the strengthening column. A third connecting block is fixedly installed on the surface of the fourth connecting plate. A transverse pull rod is installed between two adjacent fourth connecting plates. Third connecting ears are fixedly installed at both ends of the transverse pull rod. A pin shaft is installed between the third connecting ear and the third connecting block.

[0015] In a preferred embodiment, a bidirectional lead screw is rotatably installed in the inner cavity of the transverse pull rod. First threaded blocks are symmetrically and fixedly installed in the inner cavity of the transverse pull rod. The bidirectional lead screw is threadedly connected to the first threaded blocks. A first adjusting bolt is fixedly installed on the surface of the bidirectional lead screw for driving the bidirectional lead screw to rotate.

[0016] By setting up a horizontal pulling mechanism, the first adjusting bolt drives the bidirectional lead screw to rotate, thereby adjusting the length of the horizontal pull rod, ensuring the tight connection of adjacent fourth connecting plates. The adjacent fourth connecting plates are connected by the horizontal pull rod to construct a rigid triangular connection between adjacent support columns, and the independent support columns are connected in series into a space truss system. The horizontal pull rod transfers the stress to adjacent support points in the form of axial tension and compression stress, avoiding the local moment accumulation caused by traditional shear force transmission and significantly improving the lateral support performance.

[0017] In a preferred embodiment, a connecting mechanism is installed on the surface of the long support column for controlling the connection between the second connecting ear and the second connecting block. The connecting mechanism includes a driving block, a mounting block, and a limiting rod. The driving blocks are symmetrically and slidably installed in the inner cavity of the connecting seat. The bottom of the driving block is wedge-shaped. The surface of the driving block is fixedly installed with a mounting block, and the side wall of the mounting block is fixedly installed with a limiting rod. One end of the limiting rod is inserted into the second connecting block for hinging the second connecting ear and the second connecting block.

[0018] In a preferred embodiment, sliders are symmetrically and fixedly installed on the side walls of the driving blocks. Sliding grooves are symmetrically formed in the inner cavity of the connecting seat, and the sliders are slidably installed in the inner cavities of the sliding grooves. A spring is fixedly installed on the side wall of the driving block, and the other end of the spring is fixedly connected to the connecting seat for driving the limiting rod to move towards the second connecting ear.

[0019] In a preferred embodiment, an adjusting screw is installed in the inner cavity of the mounting block, and a second threaded block is fixedly installed in the inner cavity of the mounting block. The adjusting screw is threadedly connected to the second threaded block for driving the driving block to move. One end of the adjusting screw is fixedly installed with a second adjusting bolt for driving the adjusting screw to rotate.

[0020] In a preferred embodiment, a driving ring is slidably sleeved on the surface of the long support column. The surface of the driving ring is wedge-shaped, and the wedge surface of the driving ring is adapted to the wedge surface of the driving block for driving the driving block to move. A lifting block is also sleeved on the surface of the long support column, and a connecting rod is connected between the lifting block and the driving ring. Jacks are symmetrically installed on the surface of one of the temporary support bases, and the telescopic ends of the jacks are in contact with the bottom of the lifting block for driving the lifting block to lift.

[0021] By setting up the connecting mechanism, when the support device needs to be removed after the construction is completed, first use the hoisting equipment to remove the two short support columns, and then drive the lifting block to rise by the jack, driving the driving ring to rise synchronously, squeezing the driving block, and thus driving the limiting rod to disengage from the second connecting block, so as to release the connection between the long support column and the double X column, without manual climbing operation, which is convenient for construction.

[0022] A temporary support device for installing a double X column provided by the present invention has the following beneficial effects:

[0023] By setting up a support mechanism, two sets of supports are adopted, namely a long support column and a set of short support columns, which is relatively safe and simple. The long support column serves as the main load-bearing structure and bears more than 70% of the vertical load. The double-pivot short support columns share the remaining vertical load and absorb horizontal forces such as wind load and hoisting yaw force at the first intersection, forming a "main-assistant collaborative" stress-bearing mechanism, avoiding the risk of overloading of a single support. Moreover, the two pivots of the short support columns disperse the local stress to adjacent pipe sections, reducing the stress concentration coefficient and increasing the stability of the device.

[0024] 2. By setting up a cross-tension mechanism, the first adjusting bolt drives the bidirectional lead screw to rotate, thereby adjusting the length of the cross-tie rod to ensure the tight connection of adjacent fourth connecting plates. The adjacent fourth connecting plates are connected by the cross-tie rod to construct a rigid triangular connection between adjacent support columns, and the independent support columns are connected in series into a space truss system. The cross-tie rod transfers the stress to adjacent support points in the form of axial tensile and compressive stresses, avoiding the accumulation of local bending moments caused by traditional shear force transmission and significantly improving the lateral support performance.

[0025] 3. By setting up a connection mechanism, when the support device needs to be removed after the construction is completed, first use the hoisting equipment to remove the two short support columns, and then drive the lifting block to rise by the jack, driving the driving ring to rise synchronously, squeezing the driving block, so as to drive the limiting rod to disengage from the second connecting block, and the connection between the long support column and the double-X column can be released, without manual climbing operation, which is convenient for construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0027] Figure 1 is the overall three-dimensional view provided by the embodiment of the present invention;

[0028] Figure 2 is the left three-dimensional view provided by the embodiment of the present invention;

[0029] Figure 3 is the right three-dimensional view provided by the embodiment of the present invention;

[0030] Figure 4 is the front view provided by the embodiment of the present invention;

[0031] Figure 5 is the sectional view of the temporary support foundation provided by the embodiment of the present invention;

[0032] Figure 6 Isometric view of the long support column provided by the embodiment of the present invention;

[0033] Figure 7 Isometric view of the drive ring provided by the embodiment of the present invention;

[0034] Figure 8 Cross-sectional view of the connection seat provided by the embodiment of the present invention;

[0035] Figure 9 Isometric view of the drive block provided by the embodiment of the present invention.

[0036] In the figure: 1, annular foundation; 2, pier seat; 3, double X-column; 4, integral steel ring beam; 5, first intersection; 6, second intersection; 7, support mechanism; 701, temporary support foundation; 702, connecting piece; 703, first connecting plate; 704, short support column; 705, second connecting plate; 706, first connecting ear; 707, first connecting block; 708, long support column; 709, third connecting plate; 710, connection seat; 711, second connecting ear; 712, second connecting block; 8, transverse tensioning mechanism; 801, strengthening column; 802, fourth connecting plate; 803, transverse tensioning rod; 804, third connecting ear; 805, bidirectional lead screw; 806, first threaded block; 807, first adjusting bolt; 9, connecting mechanism; 901, drive block; 902, slider; 903, chute; 904, spring; 905, mounting block; 906, limiting rod; 907, adjusting screw; 908, second threaded block; 909, second adjusting bolt; 910, drive ring; 911, lifting block; 912, connecting rod; 913, jack. Specific embodiments

[0037] To make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0038] Refer to Figures 1-9 As shown, the present invention provides a technical solution: a temporary support device for installing a double X-column, including an annular foundation 1, a double X-column 3 and a support mechanism 7. A pier seat 2 is poured on the surface of the annular foundation 1. The double X-column 3 is installed on the surface of the pier seat 2. An integral steel ring beam 4 is connected to the surface of the double X-column 3. First intersections 5 and second intersections 6 are formed by the intersection of the surfaces of the double X-column 3.

[0039] Refer to Figures 1-4As shown, in a preferred embodiment, the support mechanism 7 is installed on the right part of the annular foundation 1 for temporarily supporting the double X-column 3. The support mechanism 7 includes a temporary support foundation 701, short support columns 704 and long support columns 708. The temporary support foundation 701 is poured on the right part of the annular foundation 1. A connecting piece 702 is embedded in the inner cavity of the temporary support foundation 701. A first connecting plate 703 is fixedly installed on the surface of the connecting piece 702. The short support columns 704 are symmetrically installed on the surfaces of two of the temporary support foundations 701. One end of the short support column 704 is hinged to the double X-column 3. A second connecting plate 705 is fixedly installed at the bottom of the short support column 704. A bolt is connected between the second connecting plate 705 and the first connecting plate 703. A first connecting ear 706 is fixedly installed on the surface of the short support column 704. A first connecting block 707 is fixedly installed on the side wall of the first intersection 5. A pin shaft is rotatably installed between the first connecting ear 706 and the first connecting block 707. Through the arrangement of a group of short support columns 704, the first intersection 5 of the double X-column 3 is supported, improving the stability of the support system.

[0040] Referring to Figures 1-4 As shown, in a preferred embodiment, the long support column 708 is installed on the surface of one of the temporary support foundations 701. One end of the long support column 708 is hinged to the double X-column 3. A third connecting plate 709 is fixedly installed at the bottom of the long support column 708. A bolt is connected between the third connecting plate 709 and the first connecting plate 703. A connecting seat 710 is fixedly installed on the surface of the long support column 708. A second connecting ear 711 is fixedly installed on the surface of the connecting seat 710. A second connecting block 712 is fixedly installed on the side wall of the second intersection 6. The second connecting block 712 is hinged to the second connecting ear 711. By adopting two sets of supports, one long support column 708 plus a group of short support columns 704, it is relatively safe and simple. The long support column 708 serves as the main load-bearing structure, bearing more than 70% of the vertical load; the double-point short support columns 704 share the remaining vertical load and absorb horizontal forces such as wind load and hoisting yaw force through the first intersection 5, forming a "main - auxiliary collaborative" force mechanism, avoiding the risk of single support overload, and the two supports of the short support column 704 diffuse the local stress to adjacent pipe sections, reducing the stress concentration coefficient and increasing the stability of the device.

[0041] In a preferred embodiment, during use, the two short support columns 704 are successively hinged to the first connection block 707 through a pin shaft by a hoisting device, and the long support column 708 is hinged to the second connection block 712. Subsequently, the double X-column 3 as a whole is hoisted and fixed on the surface of the pier 2. At this time, the two short support columns 704 and one long support column 708 are in a vertical state. Then, the first connecting plate 703 and the second connecting plate 705, and the first connecting plate 703 and the third connecting plate 709 are fixedly connected by bolts, thus initially completing the fixed installation of the device. By adopting two groups of supports, one long support column 708 plus a group of short support columns 704, it is relatively safe and simple. Among them, the long support column 708 serves as the main load-bearing structure and bears more than 70% of the vertical load; the double-pivot short support column 704 shares the remaining vertical load and absorbs horizontal forces such as wind load and hoisting yaw force through the first intersection 5, forming a "main - auxiliary cooperation" force mechanism, avoiding the risk of overloading of a single support, and the two pivots of the short support column 704 diffuse the local stress to adjacent pipe sections, reducing the stress concentration coefficient and increasing the stability of the device.

[0042] Referring to Figures 1-5 As shown, in a preferred embodiment, a transverse tensioning mechanism 8 is installed on the surface of the temporary support foundation 701 for providing lateral support force. The transverse tensioning mechanism 8 includes a strengthening column 801, a fourth connecting plate 802, and a transverse tension rod 803. The strengthening column 801 is welded to the side of the connecting member 702. One end of the strengthening column 801 is fixedly installed with a fourth connecting plate 802. A third connection block is fixedly installed on the surface of the fourth connecting plate 802. A transverse tension rod 803 is installed between adjacent fourth connecting plates 802. Third connection ears 804 are fixedly installed at both ends of the transverse tension rod 803. A pin shaft is installed between the third connection ear 804 and the third connection block. The adjacent fourth connecting plates 802 are connected by the transverse tension rod 803 to construct a rigid triangular connection between adjacent support columns, connecting the independent support columns in series into a space truss system. The transverse tension rod 803 transfers to adjacent support points in the form of axial tensile and compressive stresses, avoiding the local moment accumulation caused by traditional shear force transmission and significantly improving the lateral support performance.

[0043] Referring to Figures 1-5 As shown, in a preferred embodiment, a bidirectional lead screw 805 is rotatably installed in the inner cavity of the transverse tension rod 803. First threaded blocks 806 are symmetrically and fixedly installed in the inner cavity of the transverse tension rod 803. The bidirectional lead screw 805 is threadedly connected to the first threaded blocks 806. A first adjusting bolt 807 is fixedly installed on the surface of the bidirectional lead screw 805 for driving the rotation of the bidirectional lead screw 805. By the first adjusting bolt 807, the bidirectional lead screw 805 can be driven to rotate, thereby adjusting the length of the transverse tension rod 803 to ensure the tight connection of adjacent fourth connecting plates 802.

[0044] In a preferred embodiment, during use, the first adjusting bolt 807 can drive the bidirectional lead screw 805 to rotate, thereby adjusting the length of the cross tie rod 803 to ensure the tight connection of adjacent fourth connecting plates 802. The adjacent fourth connecting plates 802 are connected by the cross tie rod 803 to construct a rigid triangular connection between adjacent support columns, and the independent support columns are connected in series into a space truss system. The cross tie rod 803 transfers the stress to adjacent support points in the form of axial tension and compression stress, avoiding the accumulation of local bending moments caused by traditional shear force transmission and significantly improving the lateral support performance.

[0045] Referring to Figures 1-9 As shown, in a preferred embodiment, a connecting mechanism 9 is installed on the surface of the long support column 708 for controlling the connection between the second connecting ear 711 and the second connecting block 712. The connecting mechanism 9 includes a driving block 901, a mounting block 905, and a limiting rod 906. The driving block 901 is symmetrically and slidably installed in the inner cavity of the connecting seat 710. The bottom of the driving block 901 is wedge-shaped. Symmetrically fixed on the side wall of the driving block 901 are sliding blocks 902. Symmetrically opened in the inner cavity of the connecting seat 710 are sliding grooves 903. The sliding blocks 902 are slidably installed in the inner cavity of the sliding grooves 903. Fixedly installed on the side wall of the driving block 901 is a spring 904, and the other end of the spring 904 is fixedly connected to the connecting seat 710 for driving the limiting rod 906 to move towards the second connecting ear 711.

[0046] Referring to Figures 1-9 As shown, in a preferred embodiment, fixedly installed on the surface of the driving block 901 is a mounting block 905. Fixedly installed on the side wall of the mounting block 905 is a limiting rod 906. One end of the limiting rod 906 is inserted into the second connecting block 712 for hinging the second connecting ear 711 and the second connecting block 712. Installed in the inner cavity of the mounting block 905 is an adjusting screw rod 907. Fixedly installed in the inner cavity of the mounting block 905 is a second threaded block 908. The adjusting screw rod 907 is threadedly connected to the second threaded block 908 for driving the driving block 901 to move. Fixedly installed at one end of the adjusting screw rod 907 is a second adjusting bolt 909 for driving the adjusting screw rod 907 to rotate. When connecting the long support column 708 and the double X-column 3, the second adjusting bolt 909 can drive the adjusting screw rod 907 to rotate, making one end of the adjusting screw rod 907 abut against the side wall of the second connecting ear 711. The spring 904 is compressed under force, and the mounting block 905 moves backward until the limiting rod 906 disengages from the second connecting ear 711. Then, the second connecting ear 711 is inserted into the second connecting block 712, and the adjusting screw rod 907 is rotated in the reverse direction. The spring 904 resets until the limiting rod 906 is inserted into the second connecting block 712, and then the connection between the long support column 708 and the double X-column 3 can be completed.

[0047] Referring to Figures 1-9As shown, in a preferred embodiment, a driving ring 910 is slidably sleeved on the surface of the long support column 708. The surface of the driving ring 910 is wedge-shaped, and the wedge surface of the driving ring 910 is adapted to the wedge surface of the driving block 901 for driving the driving block 901 to move. An elevating block 911 is also sleeved on the surface of the long support column 708. A connecting rod 912 is connected between the elevating block 911 and the driving ring 910. Jacks 913 are symmetrically installed on the surface of one of the temporary support bases 701. The telescopic ends of the jacks 913 are in contact with the bottom of the elevating block 911 for driving the elevating block 911 to rise and fall. After the construction is completed and the support device needs to be removed, first, the two short support columns 704 are removed by using a hoisting device. Subsequently, the jacks 913 drive the elevating block 911 to rise, driving the driving ring 910 to rise synchronously, squeezing the driving block 901, so as to drive the limiting rod 906 to disengage from the second connecting block 712, and the connection between the long support column 708 and the double X-column 3 can be released without manual climbing operation, which is convenient for construction.

[0048] In a preferred embodiment, during use, when connecting the long support column 708 and the double X-column 3, the second adjusting bolt 909 can drive the adjusting screw 907 to rotate, so that one end of the adjusting screw 907 abuts against the side wall of the second connecting ear 711. The spring 904 is compressed under force, and the mounting block 905 moves backward until the limiting rod 906 disengages from the second connecting ear 711. Then, the second connecting ear 711 is inserted into the second connecting block 712, and the adjusting screw 907 is rotated in the reverse direction. The spring 904 resets until the limiting rod 906 is inserted into the second connecting block 712, and the connection between the long support column 708 and the double X-column 3 can be completed. After the construction is completed and the support device needs to be removed, first, the two short support columns 704 are removed by using a hoisting device. Subsequently, the jacks 913 drive the elevating block 911 to rise, driving the driving ring 910 to rise synchronously, squeezing the driving block 901, so as to drive the limiting rod 906 to disengage from the second connecting block 712, and the connection between the long support column 708 and the double X-column 3 can be released without manual climbing operation, which is convenient for construction.

[0049] Specifically, the working principle of the temporary support device for double X-column installation is as follows: During use, two short support columns 704 are successively hinged to the first connection block 707 through a pin shaft by a hoisting device. The adjusting screw 907 is driven to rotate by the second adjusting bolt 909, so that one end of the adjusting screw 907 abuts against the side wall of the second connecting ear 711. The spring 904 is compressed under force, and the mounting block 905 moves backward until the limiting rod 906 disengages from the second connecting ear 711. Then, the second connecting ear 711 is inserted into the second connection block 712, and the adjusting screw 907 is rotated in the reverse direction. The spring 904 resets until the limiting rod 906 is inserted into the second connection block 712, and the connection between the long support column 708 and the double X-column 3 can be completed. Subsequently, the double X-column 3 as a whole is hoisted and fixed on the surface of the pier seat 2. At this time, the two short support columns 704 and one long support column 708 are in a vertical state. Then, the first connecting plate 703 and the second connecting plate 705, and the first connecting plate 703 and the third connecting plate 709 are fixedly connected by bolts in sequence, and the fixed installation of the device is initially completed. By adopting two groups of supports, one long support column 708 plus a group of short support columns 704, it is relatively safe and simple. Among them, the long support column 708 serves as the main load-bearing structure, bearing more than 70% of the vertical load; the double-pivot short support column 704 shares the remaining vertical load and absorbs horizontal forces such as wind load and hoisting yaw force through the first intersection 5, forming a "main - auxiliary collaborative" force mechanism, avoiding the risk of overloading of a single support. Moreover, the two fulcrums of the short support column 704 diffuse the local stress to adjacent pipe segments, reducing the stress concentration coefficient and increasing the stability of the device.

[0050] Subsequently, the first adjusting bolt 807 can drive the bidirectional lead screw 805 to rotate, thereby adjusting the length of the cross tie rod 803 to ensure the tight connection of adjacent fourth connecting plates 802. The adjacent fourth connecting plates 802 are connected by the cross tie rod 803 to construct a rigid triangular connection between adjacent support columns, and the independent support columns are connected in series into a space truss system. The cross tie rod 803 transfers to adjacent support points in the form of axial tensile and compressive stresses, avoiding the local moment accumulation caused by traditional shear force transmission and significantly improving the lateral support performance.

[0051] When the construction is completed and the support device needs to be removed, first, the two short support columns 704 are removed by a hoisting device. Subsequently, the lifting block 911 is driven to rise by the jack 913, driving the driving ring 910 to rise synchronously, squeezing the driving block 901, thereby driving the limiting rod 906 to disengage from the second connection block 712, and the connection between the long support column 708 and the double X-column 3 can be released, without the need for manual climbing operation, which is convenient for construction.

[0052] The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A temporary support device for double X-column installation, characterized in that, It includes an annular foundation (1), a double-X column (3) and a support mechanism (7). A pier (2) is cast on the surface of the annular foundation (1). The double-X column (3) is installed on the surface of the pier (2). An integral steel ring beam (4) is connected to the surface of the double-X column (3). The support mechanism (7) is installed on the right part of the annular foundation (1) and is used for temporarily supporting the double-X column (3). The support mechanism (7) includes: A temporary support foundation (701) is cast on the right part of the annular foundation (1). A connecting piece (702) is embedded in the inner cavity of the temporary support foundation (701), and a first connecting plate (703) is fixedly installed on the surface of the connecting piece (702); Short support columns (704) are symmetrically installed on the surfaces of two of the temporary support foundations (701). One end of the short support column (704) is hinged to the double-X column (3); A long support column (708) is installed on the surface of one of the temporary support foundations (701). One end of the long support column (708) is hinged to the double-X column (3); A transverse tensioning mechanism (8) is installed on the surface of the temporary support foundation (701) and is used to provide a transverse supporting force. The transverse tensioning mechanism (8) includes a strengthening column (801), a fourth connecting plate (802) and a transverse tension rod (803); A connecting mechanism (9) is installed on the surface of the long support column (708) and is used to control the connection between the second connecting ear (711) and the second connecting block (712). The connecting mechanism (9) includes a driving block (901), a mounting block (905) and a limiting rod (906); The strengthening column (801) is welded to the side of the connecting piece (702). One end of the strengthening column (801) is fixedly installed with a fourth connecting plate (802). A third connecting block is fixedly installed on the surface of the fourth connecting plate (802). A transverse tension rod (803) is installed between two adjacent fourth connecting plates (802). Third connecting ears (804) are fixedly installed at both ends of the transverse tension rod (803), and a pin shaft is installed between the third connecting ear (804) and the third connecting block; A bidirectional lead screw (805) is rotatably installed in the inner cavity of the transverse tension rod (803). First threaded blocks (806) are symmetrically and fixedly installed in the inner cavity of the transverse tension rod (803). The bidirectional lead screw (805) is threadedly connected to the first threaded blocks (806). A first adjusting bolt (807) is fixedly installed on the surface of the bidirectional lead screw (805) and is used to drive the bidirectional lead screw (805) to rotate; The driving blocks (901) are symmetrically and slidably installed in the inner cavity of the connecting seat (710). The bottom of the driving block (901) is wedge-shaped. A mounting block (905) is fixedly installed on the surface of the driving block (901). A limiting rod (906) is fixedly installed on the side wall of the mounting block (905). One end of the limiting rod (906) is inserted into the second connecting block (712) and is used to hinge the second connecting ear (711) and the second connecting block (712); Sliders (902) are symmetrically and fixedly installed on the side walls of the driving block (901). Chutes (903) are symmetrically formed in the inner cavity of the connecting seat (710). The sliders (902) are slidably installed in the inner cavities of the chutes (903). A spring (904) is fixedly installed on the side wall of the driving block (901). The other end of the spring (904) is fixedly connected to the connecting seat (710) and is used to drive the limiting rod (906) to move towards the second connecting ear (711). An adjusting screw rod (907) is installed in the inner cavity of the mounting block (905). A second threaded block (908) is fixedly installed in the inner cavity of the mounting block (905). The adjusting screw rod (907) is in threaded connection with the second threaded block (908) and is used to drive the driving block (901) to move. One end of the adjusting screw rod (907) is fixedly installed with a second adjusting bolt (909) which is used to drive the adjusting screw rod (907) to rotate. A driving ring (910) is slidably sleeved on the surface of the long support column (708). The surface of the driving ring (910) is wedge-shaped. The wedge surface of the driving ring (910) is adapted to the wedge surface of the driving block (901) and is used to drive the driving block (901) to move. An elevating block (911) is also sleeved on the surface of the long support column (708). A connecting rod (912) is connected between the elevating block (911) and the driving ring (910). Jacks (913) are symmetrically installed on the surface of one of the temporary support bases (701). The telescopic ends of the jacks (913) are in contact with the bottom of the elevating block (911) and are used to drive the elevating block (911) to rise and fall.

2. The temporary support device for double X-column installation according to claim 1, characterized in that, A first intersection (5) and a second intersection (6) are formed by the intersection of the surfaces of the double X-columns (3). A second connecting plate (705) is fixedly installed at the bottom of the short support column (704). A bolt is connected between the second connecting plate (705) and the first connecting plate (703). A first connecting ear (706) is fixedly installed on the surface of the short support column (704). A first connecting block (707) is fixedly installed on the side wall of the first intersection (5). A pin shaft is rotatably installed between the first connecting ear (706) and the first connecting block (707).

3. The temporary support device for double X-column installation according to claim 2, characterized in that, A third connecting plate (709) is fixedly installed at the bottom of the long support column (708). A bolt is connected between the third connecting plate (709) and the first connecting plate (703).

4. A temporary support device for double X-column installation according to claim 3, characterized in that, A connecting seat (710) is fixedly installed on the surface of the long support column (708). A second connecting ear (711) is fixedly installed on the surface of the connecting seat (710). A second connecting block (712) is fixedly installed on the side wall of the second intersection (6). The second connecting block (712) is hinged to the second connecting ear (711).

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