High formwork frame horizontal damping device

Abstract

This invention belongs to the field of building engineering technology, specifically relating to a horizontal vibration damping device for tall formwork supports, including a bottom platform, a transverse tie rod, an adjustable support, a multi-functional enclosure, and a screw rod. The bottom end of the bottom platform is fixedly connected to the top end of the screw rod, and a hand-operated nut is fitted onto the screw rod, with the bottom end of the screw rod inserted into the upright of the formwork support. The adjustable support includes an insert rod and a threaded cylinder. The bottom of the threaded cylinder is a convex spherical surface, which fits against the concave spherical surface set at the center of the bottom platform, allowing it to rotate within the concave spherical surface to form a ball-joint connection. A bent spring steel plate is provided on the bottom platform, and the transverse tie rod is used to connect adjacent bottom platforms into a whole.

Description

Technical Field

[0001] This invention belongs to the technical field of construction equipment for building engineering, and specifically relates to a horizontal vibration damping device for tall formwork supports. Background Technology

[0002] High-support scaffolding, as a major temporary facility in building construction, determines the safety of the entire construction process. In recent years, due to the increased number of construction projects and the increasing technical difficulty, collapse accidents involving high-support scaffolding have become more frequent. According to surveys and statistics, collapses of high-support scaffolding mainly occur during the concrete pouring stage. The main reason is that the scaffolding bears the dynamic load generated by concrete pouring at this time. Compared with static loads, dynamic loads significantly weaken the safety and reliability of the scaffolding. These dynamic loads come from concrete pouring, concrete vibration, the placement of large concrete placing equipment, and the reciprocating motion of concrete pump pipes during concrete pumping. Among these, the reciprocating motion of concrete pump pipes during concrete pumping is the most significant cause of the collapse of high-support scaffolding.

[0003] When concrete is pumped, the concrete pump pipe generates a horizontal step load, which is transmitted to the formwork through friction between components. Simultaneously, as concrete is poured, the mass of the top of the formwork gradually increases, and this load is eccentric, causing changes in the formwork's natural frequency. When the frequency of the external excitation load approaches the formwork's natural frequency, a resonance effect occurs, significantly increasing the formwork's amplitude and making it highly susceptible to collapse. Therefore, reducing the horizontal dynamic effects generated by the formwork during concrete pouring is crucial. This technology addresses this by adding horizontal vibration damping measures at the connection between the formwork and the template, achieving vibration reduction and energy dissipation of the horizontal dynamic load transmitted from above. This reduces the dynamic response of tall formwork under horizontal dynamic loads during concrete pouring, improving the formwork's safety.

[0004] Chinese utility model patent CN215168076U discloses a buffer-type top support structure, including an adjustable support rod and a support structure. The support structure is located at the upper end of the adjustable support rod and includes a top support member and a first insert segment. The first insert segment is fixed to the lower part of the top support member. The upper end of the adjustable support rod is provided with a second insert segment. The first insert segment and the second insert segment are inserted and matched. A buffer structure is also installed between the first insert segment and the second insert segment. When the first insert segment and the second insert segment undergo insertion and extraction movements, the buffer structure pad plays an elastic buffering role, so that the top support structure is elastically supported under the template. When multiple top support structures are used, it can ensure that each top support is evenly supported by force. This utility model adds a buffer structure to the adjustable top support. The top support is evenly loaded by the small up-and-down movement of the first and second insert sections. However, when the concrete pump pipe applies a horizontal dynamic load to the formwork and support frame, the top of the adjustable top support will generate a horizontal displacement, which will cause a bending moment load inside it. When the connection between the two insert sections is unreliable, the top support is very easy to tilt, which will cause the frame to collapse and be damaged, and its safety cannot be guaranteed.

[0005] In summary, most existing technologies address vibration reduction in formwork by focusing on the source of dynamic loads. However, current technologies do not consider horizontal, omnidirectional vibration damping at the connection between the formwork and the scaffold uprights. Furthermore, existing adjustable supports between the uprights and formwork only adjust the elevation and do not address energy dissipation measures for the kinetic energy transmitted from the formwork. The most direct location for horizontal vibration reduction using concrete pump pipes is the connection between the formwork and the scaffold uprights. This weakens the kinetic energy generated by the horizontal dynamic loads transmitted from the formwork, reduces the dynamic response of tall formwork, and ensures the safety of tall formwork during concrete pouring. Summary of the Invention

[0006] To address the aforementioned shortcomings in the existing technology, this invention provides a horizontal vibration damping device for tall formwork supports, which solves the technical problem that the reciprocating motion of the concrete pump pipe during concrete pumping causes the collapse of tall formwork supports.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0008] A horizontal vibration damping device for a tall formwork support frame includes: a bottom platform, a horizontal tie rod, an adjustable support, a multi-functional enclosure, and a screw rod; the bottom end of the bottom platform is fixedly connected to the top end of the screw rod, a hand-operated nut is fitted onto the screw rod, and the bottom end of the screw rod is inserted into the upright of the formwork support frame;

[0009] The multifunctional enclosure includes a polygonal vertical enclosure, which is fixedly installed on a bottom platform. A concave spherical surface is provided at the center of the bottom platform. An annular limiting plate and an arc-shaped limiting disc are fixedly installed inside the multifunctional enclosure. The annular limiting plate is located above the arc-shaped limiting disc, and the annular limiting plate is parallel to the arc-shaped limiting disc.

[0010] The adjustable support includes a plug rod, a threaded cylinder, and a blade-type spring steel. The plug rod includes a screw section and a support plate. The upper part of the screw section is a smooth section, and the lower part is an externally threaded section. The support plate is welded to the top of the screw section and is used for placing the upper structure.

[0011] The threaded cylinder has an internal thread, and the insert rod can be screwed into the threaded cylinder to achieve adjustable support height adjustment; the blade spring steel includes multiple blades arranged in a divergent manner, the blade spring steel is welded and fixed to the outer wall of the threaded cylinder, the blade spring steel is located between the annular limiting plate and the arc-shaped limiting disc, and its upper surface is in contact with the lower surface of the annular limiting plate.

[0012] The bottom of the threaded cylinder is a convex spherical surface, which fits into the concave spherical surface set at the center of the bottom platform, allowing it to rotate within the concave spherical surface and form a ball-joint connection.

[0013] The bottom platform is provided with a bent spring steel plate, and the adjacent bottom platforms are connected into a whole by the horizontal tie rod.

[0014] The transverse tie rod includes a steel pipe and connecting plates at both ends of the steel pipe. The connecting plates have a first screw hole and are fixed to a bent spring steel plate on the bottom platform by a first bolt.

[0015] The bottom platform has an octagonal cross-section with a concave spherical surface at the center and a water collection ring around the outer perimeter of the concave spherical surface.

[0016] The annular limiting plate is fixed with four first vertical connecting plates at 90° intervals around its circumference. The second screw holes of the first vertical connecting plates are connected and fixed with the second inner bolt holes on the corresponding surfaces of the vertical enclosure by second bolts.

[0017] The upper surface of the arc-shaped limiting plate is provided with an arc-shaped section, and the inner circle of the lower surface is provided with a sloping concave angle. Four second vertical connecting plates are fixed to the arc-shaped limiting plate at 90° intervals around its circumference. The third bolt holes of the second vertical connecting plates are connected and fixed to the first inner bolt holes of the corresponding surfaces of the vertical enclosure by third bolts.

[0018] The multifunctional enclosure also includes a safety plate, which is welded and fixed to the inner side of the vertical enclosure. An annular boss is provided on its upper surface, and the inner circle of the annular boss is inclined. The safety plate is arranged parallel to the lower part of the arc-shaped limiting plate.

[0019] The adjustable support also includes a rigid large disc. The outer wall of the threaded cylinder of the adjustable support is provided with external threads. The rigid large disc is screwed to the external threads of the threaded cylinder. The rigid large disc is disposed between the arc-shaped limiting disc and the safety disc.

[0020] The multifunctional enclosure also includes a spring steel base, which is welded and fixed to the inner side of the vertical enclosure and located below the safety plate.

[0021] The multi-functional enclosure also includes multi-layer spring steel. The vertical enclosure is an octagonal tube column structure with an inner connecting plate at the bottom. The vertical enclosure has two square holes on each of its eight sides to allow the multi-layer spring steel to be inserted and fixed. The inner connecting plate also has holes along the octagonal path inside the vertical enclosure for passing through hexagonal bolts to fix the multi-layer spring steel.

[0022] The spring steel base includes a first ring-shaped steel plate, a second steel plate and a fourth steel plate with notches for inserting and fixing multiple layers of spring steel, and a third steel plate that divides the multiple layers of spring steel into upper and lower parts, which are separated by a certain distance to form a groove.

[0023] The adjustable support also includes a rigid small disc, which is threadedly connected to the adjustable support threaded cylinder and fixed below the rigid large disc. Its disc surface is inserted into a groove formed by multiple layers of spring steel, so that when the support is tilted, one side of the rigid small disc lifts the upper spring steel and the other side presses down the lower spring steel.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. The bottom platform of this device is equipped with 45° inclined spring steel plates on all four sides in both directions. This inclined spring steel serves as the first layer of vibration reduction. During concrete pouring, under the influence of dynamic loads, adjacent devices do not interfere with each other. Simultaneously, it dissipates the energy of the lateral and vertical dynamic loads transmitted from above, ensuring its independent vibration reduction. Furthermore, the use of lateral tie rods to connect adjacent devices increases the overall rigidity of the support system under the tall formwork after pouring, under the influence of static loads, preventing damage caused by excessive load on a single device due to large single-point loads. Traditional adjustable top supports and the threaded rods inserted into the uprights of this device suffer from initial rotation due to gaps between components, resulting in initial offset at the top of the top support. This invention, through the connection between adjacent devices, significantly reduces the initial offset distance at the top of the top support, making the axial force the dominant force on the uprights, resulting in more rational force distribution and a safer frame.

[0026] 2. The adjustable support's blade-type spring steel efficiently utilizes the elastic advantages of spring steel, contacting the lower surface of the annular limiting plate to form the second level of horizontal energy dissipation and vibration reduction in this device. When the adjustable support tilts, the blades are blocked by the upper annular limiting plate and bend. The greater the tilt angle, the more spring plate blades participate in bearing the force, and the stronger the damping effect. At the same time, the blade tip on the other side moves down until it contacts the arc surface of the arc limiting plate below, and the third level of horizontal energy dissipation and vibration reduction plays its role. The arc surface on the arc limiting plate accelerates the elastic deformation of the blade spring steel, thereby accelerating the rate at which kinetic energy is converted into elastic potential energy. This makes the resistance to the tilting of the adjustable support 4 increase with the increase of its tilting angle.

[0027] 3. When the adjustable support rotates around its bottom, one end of the rigid small disc of the adjustable support lifts the upper multi-layer spring steel, while the other end presses down on the lower multi-layer spring steel, forming a fourth vibration damping measure. The upper load is transferred to the bottom of the support. Because the lever arm of the rigid small disc and the multi-layer spring steel at the bottom of the adjustable support is small, the load at the stress point is large. Under the large pressure of the rigid small disc, the spring steel will undergo large deformation, and may even enter plastic deformation and fail. This device uses multiple spring steels stacked together to ensure both the stiffness of the multi-layer spring steel when deformed as a whole and the deformation of individual spring steels within the elastic range without failure. The rigid small disc is set on the horizontal plane where the center of rotation of the adjustable support is located, so that when the adjustable support tilts, the direction of force transmission of the rigid small disc to the multi-layer spring steel is the tangent direction of the rotation trajectory, that is, the vertical direction, which makes the force distribution more reasonable.

[0028] 4. Traditional adjustable top supports, when connected to the uprights, result in uncontrollable top displacement, making the scaffold prone to collapse. This device absorbs most of the kinetic energy, with only a small amount transferred to the uprights. During concrete pouring, the top displacement of the uprights is negligible. Therefore, only the top stress point of the adjustable support needs to be considered. The spring steel design of this device ensures that the maximum tilt angle of the adjustable support under maximum load is 7°~10°. At this point, the stress center of the adjustable support remains within the upright's cross-section, with virtually no additional bending moment transferred to the bottom of the upright. Thus, this device achieves controllable top displacement of the entire scaffold during and after concrete pouring, ensuring the safety and reliability of tall formwork scaffolds during and after concrete pouring.

[0029] 5. This device can achieve vibration reduction and anti-tipping effects in any horizontal direction. Utilizing spring steel, it achieves horizontal vibration reduction and energy dissipation for the upper frame during concrete pouring, significantly reducing the dynamic load on the connected tall formwork and improving the construction safety of tall formwork. Compared to traditional formwork using round steel on U-shaped support plates relying on self-damping for vibration reduction, this device has a stronger vibration reduction effect. The device incorporates two safety features to prevent the adjustable support from detaching from the concave spherical surface of the bottom platform under vertical dynamic loads, ensuring the reliability of the ball-joint connection between the adjustable support and the bottom platform. It also ensures timely stopping of tilting in the event of a large angle of inclination, guaranteeing the safety and reliability of the device. The adjustable support is designed with a two-part structure: a rod and a threaded cylinder, allowing for sufficient threaded connection length adjustment of the support length. This allows the device to adjust its vibration reduction effect according to different concrete pump pipe types, greatly improving its applicability and functionality. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of a horizontal vibration damping device for a tall formwork support frame according to the present invention;

[0031] Figure 2 This is a three-dimensional exploded view of a component of a horizontal vibration damping device for a tall formwork support frame according to the present invention;

[0032] Figure 3 This is a schematic diagram of the transverse tie rod structure of the present invention;

[0033] Figure 4 This is a schematic diagram of the multifunctional enclosure and bottom platform of the present invention;

[0034] Figure 5 This is a schematic diagram of the adjustable support structure of the present invention;

[0035] Figure 6 This is a cross-sectional view of the internal structure of a horizontal vibration damping device for a tall formwork support frame according to the present invention.

[0036] Figure 7 This is a cross-sectional schematic diagram of a horizontal vibration damping device for a tall formwork support frame according to the present invention. Detailed Implementation

[0037] To enable those skilled in the art to better understand the present invention, the technical solution of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0038] Example 1

[0039] like Figure 1-3 As shown, a horizontal vibration damping device for a tall formwork support includes: a bottom platform 1, a transverse tie rod 2, an adjustable support 4, a multi-functional enclosure 3, and a screw rod 5; the bottom platform 1 is welded to the screw rod 5, and a hand plate nut 6 is fitted onto the screw rod.

[0040] The transverse tie rod 2 connects the adjacent bottom platforms 1 into a whole. The transverse tie rod 2 includes a steel pipe 2-1 and connecting plates 2-2 at both ends of the steel pipe. The connecting plates 2-2 have a first screw hole 2-2-1 and are fixed to the spring steel plate 1-2 of the bottom platform 1 by a first bolt 2-3. The top surface of the lead screw 5 is fixedly connected to the bottom platform 1; part of the lead screw 5 is inserted into the upright of the formwork support.

[0041] See Figure 5 The adjustable support 4 can adjust the support length and form a ball joint connection with the bottom platform 1, so that the adjustable support 4 can rotate around the bottom.

[0042] The adjustable support 4 is welded with a blade-type spring steel 4-3, and the rigid large disc 4-4 and the rigid small disc 4-5 are fixed by threaded connection.

[0043] See Figure 4 The multifunctional enclosure 3 is fixed to the bottom platform 1 by bolts. The internal bolts fix the annular limiting plate 3-2 and the arc-shaped limiting plate 3-3, and weld the safety plate 3-4 and the spring steel base 3-5.

[0044] The bottom platform 1 has an octagonal cross-section with a concave spherical surface at the center. A water collection ring 1-1 is arranged around the concave spherical surface to collect excess water when the upper concrete is poured and to dissipate heat through friction in the ball-joint connection.

[0045] The bottom platform 1 is provided with 45° bent spring steel plates 1-2 on all four sides in both directions, and is connected by transverse tie rods 2 to form the first horizontal energy dissipation and vibration reduction.

[0046] The bottom platform 1 has screw holes 1-3 for fixing multi-functional enclosure 3 and screw holes 1-4 for fixing multi-layer spring steel 3-6 in the circumferential direction;

[0047] The multifunctional enclosure 3 includes a vertical enclosure 3-1, an annular limiting plate 3-2, an arc-shaped limiting disc 3-3, a safety disc 3-4, a spring steel base 3-5, and a multi-layer spring steel 3-6;

[0048] The vertical enclosure 3-1 is an octagonal tubular structure with an inner connecting plate 3-1-1 at the bottom. Each of the eight sides of the vertical enclosure 3-1 has two square holes 3-1-5 for inserting and fixing the multi-layer spring steel 3-6. The eight sides of the vertical enclosure 3-1 are staggered with the second inner bolt holes 3-1-7 of the fixing annular limiting plate 3-2 and the first inner bolt holes 3-1-6 of the fixing arc-shaped limiting disc 3-3. The inner connecting plate 3-1-1 has staggered threaded holes along an octagonal path inside and outside the vertical enclosure 3-1, including internal threaded holes 3-1-3 and external threaded holes 3-1-4, which are connected to the bolt holes 1-3 of the bottom platform 1 via bolts 7. The inner connecting plate 3-1-1 also has holes 3-1-2 along an octagonal path inside the vertical enclosure 3-1 for passing through hexagonal socket head cap screws 8 to fix the multi-layer spring steel 3-6.

[0049] The annular limiting plate 3-2 is fixed with four first vertical connecting plates 3-2-1 at 90° intervals around the circumference. The second screw hole 3-2-2 of the first vertical connecting plate 3-2-1 is connected and fixed with the second inner bolt hole 3-1-7 on the corresponding surface of the vertical enclosure 3-1 by the second bolt 3-2-3.

[0050] The upper surface of the arc-shaped limiting plate 3-3 is provided with an arc-shaped section, and the inner circle of the lower surface is provided with a sloping concave angle. The arc-shaped limiting plate 3-3 is fixed with four second vertical connecting plates 3-3-1 at 90° intervals around the circumference. The third bolt hole 3-3-2 of the second vertical connecting plate 3-3-1 is connected and fixed to the first inner bolt hole 3-1-6 on the corresponding surface of the vertical enclosure 3-1 by the third bolt 3-3-3.

[0051] The safety disc 3-4 is welded and fixed to the inner side of the vertical enclosure 3-1, and an annular boss 3-4-1 is provided on its upper surface; the inner circle of the annular boss 3-4-1 is a slope.

[0052] The spring steel base 3-5 is welded and fixed to the inner side of the vertical enclosure 3-1, and is located below the safety plate 3-4;

[0053] The spring steel base 3-5 includes 5 layers of annular steel plates. The second layer steel plate 3-5-2 and the fourth layer steel plate 3-5-4 have notches for inserting and fixing the multi-layer spring steel 3-6. The first layer steel plate 3-5-1 has a threaded hole 3-5-1-1. The third layer steel plate 3-5-3 divides the multi-layer spring steel 3-6 into upper and lower parts and has a hole 3-5-3-1. The fifth layer steel plate 3-5-5 has a threaded hole 3-5-5-1.

[0054] The notches in the second 3-5-2 and the fourth 3-5-4 steel plates correspond one-to-one with the square holes 3-1-5 on the side of the multi-functional fence 3;

[0055] The multi-layer spring steel 3-6 is located above the support spherical structure and is divided into upper and lower parts arranged in a circumferential array around the rotation center. The upper and lower parts have the same number of spring steel layers, and holes 3-6-1 are opened at their roots. The upper and lower parts are separated by a certain distance by the third layer of steel plate 3-5-3 to form a groove.

[0056] The holes 3-5-1-1, 3-5-3-1, and 3-5-5-1 on the first, third, and fifth layers of steel plates, the hole 3-6-1 at the root of the multi-layer spring steel 3-6, and the hole 3-1-2 on the connecting plate of the vertical enclosure 3-1 are all aligned with the screw holes 1-4 on the bottom platform and are fixed to the multi-layer spring steel 3-6 by passing through the hexagonal socket head cap bolts 8.

[0057] See also Figure 5-7 The adjustable support 4 includes a plug rod 4-1, a threaded cylinder 4-2, a leaf spring steel 4-3, a rigid large disc 4-4, and a rigid small disc 4-5;

[0058] The insertion rod 4-1 includes a screw section 4-1-1 and a support plate 4-1-2. The upper part of the screw section 4-1-1 is a smooth rod section, and the lower part is an externally threaded section. The support plate 4-1-2 is welded to the top of the screw section 4-1-1 and is used for placing the upper structure.

[0059] The bottom of the threaded cylinder 4-2 is a convex spherical surface, which fits with the concave spherical surface set in the center of the bottom platform 1. It can rotate and move within the concave spherical surface to form a ball-joint connection.

[0060] The threaded cylinder 4-2 is provided with an internal thread, so that when the insert rod 4-1 is fully screwed in, the threaded part is fully engaged, and rotating the insert rod 4-1 realizes the overall length adjustment of the adjustable support 4.

[0061] The blade-type spring steel 4-3 includes 12 radially arranged blades, which are set below the annular limiting plate 3-2 and welded to the outer wall of the threaded cylinder 4-2. The upper surface of the blades contacts the lower surface of the annular limiting plate 3-2, forming a second layer of horizontal energy dissipation and vibration reduction. When the adjustable support 4 is tilted to a certain angle, the blade tips contact the upper arc surface of the arc limiting plate 3-3, so that the resisting effect of the arc limiting plate 3-3 on tilting increases with the tilting angle, forming a third layer of horizontal energy dissipation and vibration reduction.

[0062] The rigid large disc 4-4 is positioned between the arc-shaped limiting disc 3-3 and the safety disc 3-4. In the event of a large tilt, one side of the rigid large disc 4-4 is in contact with the inner convex angle inclined surface of the lower surface of the arc-shaped limiting disc 3-3, and the other side is in contact with the inner inclined surface of the annular boss 3-4-1 on the safety disc 3-4, preventing the adjustable support 4 from tilting further.

[0063] The rigid small disc 4-5 is threadedly connected to the adjustable support 4 threaded cylinder 4-2 and fixed below the rigid large disc 4-4. Its disc surface is inserted into the groove formed by the multi-layer spring steel 3-6, so that when the support tilts, one side of the rigid small disc 4-5 lifts the upper spring steel and the other side presses down the lower spring steel, forming a fourth horizontal energy dissipation and vibration reduction. When the upper spring steel is lifted and displaced a certain distance, it contacts the lower surface of the safety disc 3-4. This distance is less than the distance from the lowest point of the bottom convex spherical surface of the adjustable support 4 to the upper surface of the bottom platform 1, preventing the adjustable support 4 from bouncing under vertical dynamic load, causing the bottom to detach from the concave spherical surface of the bottom platform 1, and at the same time preventing the adjustable support 4 from tilting further after rotating a certain angle.

[0064] The horizontal plane containing the vertical midpoint of the groove of the multi-layer spring steel 3-6 and the horizontal plane containing the vertical midpoint of the rigid small disc 4-5 are located at the horizontal plane containing the rotation center of the adjustable support 4.

[0065] During concrete pouring, the top of the adjustable support 4 of the frame moves horizontally under the dynamic load generated by the concrete pump pipe and the placing boom. The support plate 4-1-2 of the adjustable support tends to tilt. According to the above structure of the present invention, the energy dissipation effect of the upper dynamic load is achieved by setting four vibration reduction measures, and two safety measures are set to limit the vertical jump displacement of the adjustable support and its maximum tilt angle.

[0066] The bottom platform of this device is equipped with 45° inclined spring steel plates 1-2 on all four sides in both directions. These inclined spring steel plates 1-2 serve as the first level of vibration reduction. During concrete pouring, under the influence of dynamic loads, adjacent devices do not interfere with each other, while simultaneously dissipating the energy of the lateral and vertical dynamic loads transmitted from above, ensuring the independence of vibration reduction. Lateral tie rods 2 are used to connect adjacent devices, increasing the overall rigidity of the support system under the tall formwork under the influence of static loads after pouring, preventing damage caused by excessive load on a single device due to large single-point loads. Traditional adjustable top supports and the threaded rods of this device, inserted into the uprights, suffer from initial rotation due to gaps between components, resulting in initial offset at the top of the top support. This invention, through the connection between adjacent devices, significantly reduces the initial offset distance at the top of the top support, making the axial force the dominant force on the uprights, resulting in more rational force distribution and a safer frame.

[0067] The blade-type spring steel 4-3 on the adjustable support 4 efficiently utilizes the elastic advantages of spring steel, contacting the lower surface of the annular limiting plate 3-2 to form the second level of horizontal energy dissipation and vibration reduction in this device. When the adjustable support 4 tilts, the blades are blocked by the upper annular limiting plate 3-2 and bend. The greater the tilt angle, the more spring plate blades participate in bearing the force, and the stronger the damping effect. At the same time, the tip of the blade on the other side moves down until it contacts the upper arc surface of the arc limiting plate 3-3 below. The third level of horizontal energy dissipation and vibration reduction plays its role. The setting of the arc surface of the arc limiting plate 3-3 accelerates the elastic deformation of the blade spring steel 4-3, thereby accelerating the rate at which kinetic energy is converted into elastic potential energy. This makes the resistance to the tilting of the adjustable support 4 increase with the increase of its tilting angle.

[0068] When the adjustable support 4 rotates around its bottom, one end of the rigid small disc 4-5 of the adjustable support 4 lifts the upper multi-layer spring steel 3-6, and the other end presses down on the lower multi-layer spring steel 3-6, forming a fourth vibration damping measure. The upper load is transferred to the bottom of the support. Because the lever arm of the rigid small disc 4-5 and the multi-layer spring steel 3-6 at the bottom of the adjustable support 4 is small, the load generated at the stress position is large. Under the large pressure of the rigid small disc 4-5, the spring steel will undergo large deformation, and may even enter plastic deformation and fail. This device uses multiple spring steels stacked together to ensure both the stiffness of the multi-layer spring steel 3-6 when deformed as a whole and to ensure that the deformation of individual spring steels is within the elastic range and does not fail. The rigid small disc 4-5 is set on the horizontal plane where the rotation center of the adjustable support 4 is located, so that when the adjustable support 4 tilts, the force transmission direction of the rigid small disc 4-5 on the multi-layer spring steel 3-6 is the tangent direction of the rotation trajectory, that is, the vertical direction, which makes the force distribution more reasonable.

[0069] When the vertical dynamic load is transmitted down, the adjustable support 4 will generate an upward vertical jump displacement, and the steel end of the upper multi-layer spring 3-6 will move upward by the rigid small disc 4-5 until it contacts the safety disc 3-4 fixed above it. Since the safety disc 3-4 has a large rigidity, the adjustable support 4 will no longer move upward at this point, ensuring that the bottom convex spherical surface of the adjustable support 4 is still inside the concave spherical surface of the bottom platform 1, ensuring the effectiveness of the ball joint connection between the two. This is the first safety of this device.

[0070] The application scenarios of this device are relatively complex, and it is possible that the horizontal dynamic amplitude of the adjustable support 4 may occasionally exceed the budgeted value, in which case the adjustable support 4 will tilt at a large angle. The tilting moment of the device increases with the tilting angle of the adjustable support 4, and the load on the spring steel in this device increases simultaneously. When the adjustable support 4 rotates to a certain angle, the spring steel may yield under the huge load, causing the device to fail. This device is equipped with an anti-tipping safety device to prevent such situations from occurring. A rigid large disc 4-4 is mounted on the adjustable support 4. When the adjustable support 4 tilts to a certain angle, one side of the rigid large disc 4-4 contacts and adheres to the inner concave angle of the lower surface of the arc-shaped limiting disc 3-3, while the other side contacts and adheres to the annular boss angle of the upper surface of the safety disc 3-4 fixed below it. Due to the high rigidity of the three, the adjustable support 4 will no longer tilt at this point. This is the second safety device.

[0071] The design of the bottom platform water collection ring 1-1 is ingenious in collecting the excess water dripping during concrete pouring, providing heat dissipation at the ball joint connection between the adjustable support 4 and the bottom platform 1, and providing a reasonable and safe working condition for the device.

[0072] Traditional adjustable top supports, when connected to the uprights, result in uncontrollable top displacement, making the scaffold prone to collapse. This device absorbs most of the kinetic energy, with only a small amount transferred to the uprights. During concrete pouring, the top displacement of the uprights is negligible. Therefore, only the top stress point of the adjustable support 4 needs to be considered. The spring steel designed in this device ensures that the maximum tilt angle of the adjustable support 4 under maximum load is 7°~10°. At this point, the center of force at the top of the adjustable support 4 remains within the cross-sectional area of ​​the upright, with virtually no additional bending moment transferred to the bottom of the upright. Thus, this device achieves controllable top displacement of the entire scaffold during and after concrete pouring, ensuring the safety and reliability of the tall formwork scaffold during and after concrete pouring.

[0073] This device can achieve vibration reduction and anti-tipping effects in any horizontal direction. Utilizing spring steel, it achieves horizontal vibration reduction and energy dissipation for the upper frame during concrete pouring, significantly reducing the dynamic load on the tall formwork support connected below, thus improving the construction safety of the tall formwork support. Compared to traditional formwork support using round steel on U-shaped support plates relying on its own damping for vibration reduction, this device has a stronger vibration reduction effect. Simultaneously, the second and fourth vibration reduction measures ensure the initial verticality of the adjustable support 4. The device incorporates two safety features to prevent the adjustable support 4 from detaching from the concave spherical surface of the bottom platform 1 under vertical dynamic loads, ensuring the reliability of the ball-joint connection between the adjustable support 4 and the bottom platform 1. It also ensures that the adjustable support 4 can stop tilting promptly in the event of a large tilt angle, guaranteeing the safety and reliability of the device. The adjustable support 4 is designed with two parts: a plug rod 4-1 and a threaded cylinder 4-2, allowing for sufficient threaded connection length adjustment of the adjustable support 4's length. This allows the device to adjust its vibration reduction effect according to different concrete pump pipe types, greatly improving its applicability and functionality.

[0074] Example 2

[0075] like Figures 1 to 7 As shown, the specific installation steps for a horizontal vibration damping device for a tall formwork support frame according to the present invention are as follows:

[0076] After the concrete pump pipe and concrete placing boom are erected and before pouring concrete, this device is installed on the tall formwork support poles. The specific installation steps are as follows:

[0077] 1. Insert the lead screw 5, which is fixed at the bottom of the bottom platform 1, into the upright;

[0078] 2. Weld blade-type spring steel 4-3 onto the adjustable support threaded cylinder, and weld safety disc 3-4 inside the multi-functional enclosure 3;

[0079] 3. Fabricate a multi-layer spring steel base 3-5: Stack the first layer 3-5-1, the second layer 3-5-2, the third layer 3-5-3, the fourth layer 3-5-4, and the fifth layer 3-5-5 steel plates. Align the holes 3-5-1-1, 3-5-3-1, and 3-5-5-1 on the first layer 3-5-1, the third layer 3-5-3, and the fifth layer 3-5-5 steel plates with the notches on the second layer 3-5-2 and the fourth layer 3-5-4 steel plates, and then weld them together to form a whole.

[0080] 4. Align the notches of the second and fourth layers of steel plates of the multi-layer spring steel base 3-5 with the square holes 3-1-5 on the side of the multi-functional fence 3, and then weld them to the inner wall of the multi-functional fence 3 for fixation.

[0081] 5. Pass the adjustable support threaded cylinder 4-2 through the arc-shaped limiting plate 3-3 from above, and screw the rigid large disc 4-4 onto the bottom of the adjustable support threaded cylinder 4-2;

[0082] 6. Place the threaded cylinder 4-2, the arc-shaped limiting plate 3-3, and the rigid large disc 4-4 into the multi-functional enclosure 3 as a whole, and insert the third bolt 3-3-3 to fix the arc-shaped limiting plate 3-3;

[0083] 7. Screw the rigid small disc 4-5 onto the bottom of the threaded cylinder 4-2;

[0084] 8. Insert multi-layer spring steel 3-6 through the square hole on the side of the multi-functional enclosure 3, so that the rigid small disc 4-5 is placed in the groove formed by the upper and lower multi-layer spring steel 3-6;

[0085] 9. Insert the annular limiting plate 3-2 from above the threaded cylinder 4-2, and screw the second bolt 3-2-3 into its first vertical connecting plate 3-2-1 to fix it to the multi-functional enclosure 3;

[0086] 10. Screw the adjustable support rod 4-1 into the adjustable support threaded cylinder 4-2, and adjust the overall length of the adjustable support 4 according to the size of the pump pipe;

[0087] 11. Place the above-mentioned overall device on the bottom platform 1 and adjust its position so that the screw holes 3-1-3 and 3-1-4 of the bottom inner connecting plate 3-1-1 of the multi-functional fence 3 are aligned with the corresponding screw holes 1-3 of the bottom platform 1. At this time, the holes 3-5-1-1, 3-5-3-1, and 3-5-5-1 on the first, third, and fifth layers of steel plates of the multi-layer spring steel base 3-5 and the holes 3-6-1 at the root of the multi-layer spring steel 3-6 are concentric with the screw holes 3-1-2 on the bottom inner connecting plate 3-1-1 of the multi-functional fence 3 and the corresponding screw holes 1-4 of the bottom platform 1.

[0088] 12. Insert screws 7 and hexagonal socket head cap screws through the bottom of the bottom platform 1 to fix the multi-functional enclosure 3 and the multi-layer spring steel 3-6 respectively;

[0089] 13. Adjust the hand lever nut 6 to bring the support plate 4-1-2 to the design elevation and erect the upper structure.

[0090] 14. Repeat steps 1 to 13 to install the remaining devices, and connect adjacent devices into a whole using horizontal tie rods 2;

[0091] 15. Pour concrete for the floor slab.

[0092] The foregoing has provided a detailed description of the horizontal vibration damping device for tall formwork supports provided by the present invention, its specific installation and usage methods, and its beneficial effects. Specific embodiments have been used to illustrate the principles and implementation methods of the present invention. The descriptions of these embodiments are merely for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A horizontal damping device for a high and large formwork support frame, characterized in that, include: It includes a bottom platform (1), a horizontal tie rod (2), an adjustable support (4), a multi-functional enclosure (3), and a screw rod (5); the bottom end of the bottom platform is fixedly connected to the top end of the screw rod (5), a hand plate nut (6) is fitted on the screw rod, and the bottom end of the screw rod (5) is inserted into the upright of the formwork support frame; The multifunctional enclosure (3) includes a polygonal vertical enclosure (3-1). The multifunctional enclosure is fixedly installed on the bottom platform (1). The bottom platform (1) has a concave spherical surface at its center. The multifunctional enclosure is fixedly installed with an annular limiting plate (3-2) and an arc-shaped limiting plate (3-3). The annular limiting plate (3-2) is located above the arc-shaped limiting plate (3-3), and the annular limiting plate (3-2) is parallel to the arc-shaped limiting plate (3-3). The multifunctional enclosure (3) also includes a safety plate (3-4), which is welded and fixed to the inner side of the vertical enclosure (3-1). An annular boss (3-4-1) is provided on its upper surface, and the inner circle of the annular boss (3-4-1) is inclined. The safety plate (3-4) is arranged parallel to the lower side of the arc-shaped limiting plate (3-3). The multifunctional enclosure (3) also includes a spring steel base (3-5), which is welded and fixed to the inner side of the vertical enclosure (3-1) and located below the safety plate (3-4). The adjustable support (4) includes a plug rod (4-1), a threaded cylinder (4-2), and a leaf spring steel (4-3). The plug rod (4-1) includes a screw section (4-1-1) and a support plate (4-1-2). The upper part of the screw section (4-1-1) is a smooth rod section, and the lower part is an externally threaded section. The support plate (4-1-2) is welded to the top of the screw section (4-1-1) and is used for placing the upper structure. The adjustable support (4) also includes a rigid large disc (4-4). The outer wall of the threaded cylinder (4-2) of the adjustable support (4) is provided with external threads. The rigid large disc (4-4) is screwed to the external threads of the threaded cylinder (4-2). The rigid large disc (4-4) is located between the arc-shaped limiting disc (3-3) and the safety disc (3-4). The threaded cylinder (4-2) has an internal thread, and the insert rod (4-1) can be screwed into the threaded cylinder (4-2) to adjust the height of the adjustable support (4); the blade spring steel (4-3) includes multiple blades arranged in a divergent manner, the blade spring steel (4-3) is welded and fixed to the outer wall of the threaded cylinder (4-2), the blade spring steel (4-3) is located between the annular limiting plate (3-2) and the arc-shaped limiting disk (3-3), and its upper surface is in contact with the lower surface of the annular limiting plate (3-2); The bottom of the threaded cylinder (4-2) is a convex spherical surface, which fits against the concave spherical surface set in the center of the bottom platform (1), and can rotate within the concave spherical surface to form a ball-joint connection; The bottom platform (1) is provided with bent spring steel plates (1-2), and the adjacent bottom platforms (1) are connected into a whole by the horizontal tie rod (2).

2. The horizontal damping device of a high and large formwork support frame according to claim 1, characterized in that: The transverse tie rod (2) includes a steel pipe (2-1) and connecting plates (2-2) at both ends of the steel pipe. The connecting plate (2-2) has a first screw hole (2-2-1) and is fixed to the bent spring steel plate (1-2) on the bottom platform (1) by a first bolt (2-3).

3. The horizontal damping device of a high and large formwork support frame according to claim 1, characterized in that: The bottom platform (1) has an octagonal cross section with a concave spherical surface at the center inside and a water collection ring (1-1) around the outer perimeter of the concave spherical surface.

4. The horizontal vibration damping device for tall formwork supports according to claim 1, characterized in that: The annular limiting plate (3-2) fixes four first vertical connecting plates (3-2-1) at 90° intervals around the circumference. The second screw hole (3-2-2) of the first vertical connecting plate (3-2-1) is connected and fixed to the second inner bolt hole (3-1-7) on the corresponding surface of the vertical enclosure (3-1) by the second bolt (3-2-3).

5. A horizontal vibration damping device for tall formwork supports according to claim 4, characterized in that: The upper surface of the arc-shaped limiting plate (3-3) is provided with an arc-shaped section, and the inner circle of the lower surface is provided with a beveled concave angle. The arc-shaped limiting plate (3-3) is fixed with four second vertical connecting plates (3-3-1) at 90° intervals around its circumference. The third bolt hole (3-3-2) of the second vertical connecting plate (3-3-1) is connected and fixed with the first inner bolt hole (3-1-6) of the corresponding surface of the vertical enclosure (3-1) by the third bolt (3-3-3).

6. A horizontal vibration damping device for tall formwork supports according to claim 1, characterized in that: The multi-functional enclosure (3) also includes multi-layer spring steel (3-6). The vertical enclosure (3-1) is an octagonal tube column structure with an inner connecting plate (3-1-1) at the bottom. The vertical enclosure (3-1) has two square holes (3-1-5) on each of its eight sides to allow the multi-layer spring steel (3-6) to be inserted and fixed. The inner connecting plate (3-1-1) also has holes (3-1-2) along the octagonal path inside the vertical enclosure (3-1) for passing through hexagonal bolts (8) to fix the multi-layer spring steel (3-6). The spring steel base (3-5) includes 5 layers of annular steel plates. The second layer of steel plate (3-5-2) and the fourth layer of steel plate (3-5-4) have notches for inserting and fixing the multi-layer spring steel (3-6). The third layer of steel plate (3-5-3) divides the multi-layer spring steel (3-6) into upper and lower parts. The upper and lower parts are separated by a certain distance by the third layer of steel plate (3-5-3) to form a groove. The adjustable support (4) also includes a rigid small disc (4-5). The rigid small disc (4-5) is threadedly connected to the threaded cylinder (4-2) of the adjustable support (4) and fixed below the rigid large disc (4-4). Its disc surface is inserted into the groove formed by the multi-layer spring steel (3-6) so that when the support is tilted, one side of the rigid small disc (4-5) lifts the upper spring steel and the other side presses down the lower spring steel.

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