Temporary supporting structure for small side box combined hybrid beam cable-stayed bridge girder installation and using method

Abstract

The invention provides a temporary supporting structure for mounting a girder of a small side box combined hybrid girder cable-stayed bridge and a using method, and belongs to the technical field of bridge construction. Comprising a lower bearing plate, upper bearing plates are arranged on the left side and the right side of the upper portion of the lower bearing plate, tightening hanging rods are arranged on the left side and the right side of the lower end of each upper bearing plate, a sliding seat is arranged at the upper end of each upper bearing plate, a jacking module is arranged in each sliding seat, a connecting plate is arranged above each jacking module, and a longitudinal supporting module is arranged at the lower end of each connecting plate. By means of the transverse hydraulic self-locking rod, when a beam body generates transverse displacement when encountering wind loads, partial displacement can be automatically released, and automatic resetting can be achieved after the displacement acting force value is reduced, and by means of the front-back double-section type contraction transverse support formed by the butt joint rod and the conical rod and in cooperation with the transverse buffering spring, the transverse buffering effect can be achieved. Vibration energy generated in the working process of construction machinery can be absorbed, the influence of construction vibration on the temporary supporting structure is reduced, and the safety of the temporary supporting structure is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge construction, and in particular to a temporary support structure for installing a main beam of a cable-stayed bridge with a small side box composite hybrid beam and a use method thereof. Background Art

[0002] Small side box combined hybrid beam cable-stayed bridges mainly rely on the tension of the cable-stayed cables and the supporting force of the towers to bear the load. They are often used in the construction of medium-span bridges and are generally suitable for bridges with spans ranging from tens to hundreds of meters, such as urban cross-river bridges, river bridges, and large bridges on highways.

[0003] During the construction of the main beam of a cable-stayed bridge with a small side box composite hybrid beam, a temporary support structure needs to be set up at the contact end of the small side box main beam under the tower to compensate for the stage defects of the structure during the step-by-step construction, balance the load, control the deformation, and provide a safe transition for the establishment of a permanent system. At present, the existing temporary support structures used, such as the temporary anchoring device and anchoring method of a double-sided box steel-concrete composite cable-stayed bridge disclosed in Chinese invention patent publication number CN118814594A, allow the temporary support structure to be adjusted according to the actual support requirements of the side steel box beam, and the temporary support structure is easy to disassemble later. However, in the actual construction process, the contact end of the temporary support structure and the side box beam is a rigid static load-bearing support, and the cable-stayed bridge adopts a cantilever construction method. It is often affected by wind loads (especially in the high-altitude cantilever stage), which will cause the steel box beam to undergo lateral displacement. At this time, the rigid static load-bearing support cannot adjust the support strength according to the actual situation. When the lateral force exceeds the threshold of the temporary lateral support, the temporary support structure will be disassembled. After that, it is easy to cause the rigidity of the temporary lateral support structure to be destroyed. At the same time, when the bridge crane is operating, the vibration generated by the construction machinery is also easy to resonate with the temporary support structure, and the rigid static load-bearing support structure cannot absorb the vibration energy, which increases the risk of resonance. Secondly, during vertical support, when the steel box girder main beam produces a slight settlement due to concrete pouring, it cannot be automatically reset and requires repeated manual adjustment, which is time-consuming and labor-intensive. Moreover, the existing temporary support structures need to drill holes on the crossbeam under the cable tower for reinforcement, which can easily damage the structural strength of the crossbeam under the cable tower itself and change the stress changes inside the structure. Therefore, the present application provides a temporary support structure and a method of use for the installation of the main beam of a small side box combined hybrid beam cable-stayed bridge to meet the needs. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a temporary support structure and a method of use for the installation of the main beam of a small-side box combined hybrid beam cable-stayed bridge to solve the problem that the existing temporary support structure of the steel box beam cannot achieve dynamic load adaptation and adjustment for the wind load and construction vibration during construction. Secondly, when the main beam of the steel box beam produces a slight settlement due to concrete pouring, it cannot be automatically reset and requires repeated manual adjustment, which is time-consuming and labor-intensive. In addition, the existing temporary support structure requires drilling holes on the lower crossbeam of the cable tower for reinforcement, which can easily damage the structural strength of the lower crossbeam of the cable tower itself and change the stress changes inside the structure.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] The lifting mechanism is a lifting mechanism, and a lifting mechanism is installed in the lifting mechanism of the lifting mechanism, and a lifting mechanism is installed in the lifting mechanism of the lifting mechanism.

[0007] Optionally, the lower supporting plate includes a lower support plate, a spacing adjustment rail, a side splint, a limit block, a rubber pad and a side embedded part. The upper end of the lower support plate is provided with a spacing adjustment rail, and side splints are provided on the left and right sides of the upper end of the spacing adjustment rail. A rubber pad is provided in the middle of the upper end of the spacing adjustment rail, and a side embedded part is provided in the middle of the right end of the side splint.

[0008] Optionally, the upper supporting plate includes an upper support plate, a slide block, a lifting hole and a cross mounting hole. Slide blocks are provided on the left and right sides of the upper end of the upper support plate, and hanging holes are opened in front of the left and right sides of the slide block. A cross mounting hole starts from the middle of the upper end of the upper support plate.

[0009] Optionally, the lifting module includes a pulling block, a motion groove, a side limit plate, a side limit groove, a motion roller, a column, a fixed block and a lifting hydraulic push rod. A motion groove is provided on the inner side of the upper end of the pulling block, and side limit plates are provided on the left and right ends of the pulling block. A side limit groove is provided on the inner side of the right end of the side limit plate, a motion roller is provided at the upper end of the motion groove, and columns are provided on the left and right sides of the outer end of the motion roller. A fixed block is provided in the middle of the rear end of the pulling block, and a lifting hydraulic push rod is provided at the rear end of the fixed block.

[0010] Optionally, the longitudinal support module includes a double-layer base, a knob support rod, a rectangular column, a hydraulic jack and a pad. The four corners of the upper end of the double-layer base are provided with a knob support rod, the left and right sides of the upper end of the double-layer base are provided with a rectangular column, the interior of the rectangular column is provided with a hydraulic jack, and the middle part of the upper end of the double-layer base is provided with a pad.

[0011] Optionally, the buffer module includes a square plate, a central column, a longitudinal buffer spring and a threaded joint, a central column is provided in the middle of the upper end of the square plate, a longitudinal buffer spring is provided at the lower end of the square plate, and a threaded joint is provided at the lower end of the longitudinal buffer spring.

[0012] Optionally, the settlement sensor includes an explosion-proof shell, a stress sensor and a transmission line. The stress sensor is provided inside the explosion-proof shell, and the transmission line is provided on the right side of the outer end of the explosion-proof shell.

[0013] Optionally, the lateral support module includes a hollow cylinder, a lateral hydraulic self-locking rod, a docking rod, a conical block, a conical rod, a lateral buffer spring and a lateral constraint plate. A lateral hydraulic self-locking rod is provided in the middle of the rear end of the hollow cylinder, a docking rod is provided at the front end of the lateral hydraulic self-locking rod, a conical block is sleeved on the outer end of the docking rod, a conical rod is provided at the front end of the docking rod, a lateral buffer spring is provided on the outer side of the rear end of the conical rod, and a lateral constraint plate is provided at the front end of the conical rod.

[0014] Optionally, the upper supporting plate is symmetrically distributed on the left and right, and the upper supporting plate and the lower supporting plate are connected by four groups of tightening hangers, and each group of tightening hangers consists of four. Hanging blocks are provided in the middle of the left and right sides of the outer end of the upper supporting plate, and four hanging blocks are provided at the four corners of the upper end of the lower supporting plate. A rectangular slot is opened in the middle of the upper end of the sliding seat, and the inner diameter of the rectangular slot is matched with the outer diameter of the load-bearing plate. There are four symmetrically distributed connecting plates, and the lower end of the longitudinal support module is embedded in the inner side of the upper end of the jacking module. The longitudinal support module, buffer module, settlement sensor and data transmitter are symmetrically distributed in four groups. The cross embedded parts are symmetrically distributed front and back, and the upper end of the cross embedded parts passes through the interior of the upper supporting plate and extends to the upper outside. The driving end of the sliding adjustment motor extends forward, passes through the interior of the lower end of the sliding seat, and extends to the outside.

[0015] A method for using a temporary support structure for installing a main beam of a cable-stayed bridge with a small side box composite hybrid beam comprises the following steps:

[0016] Step 1: After the crossbeam reinforcement is tied at the lower end of the cable tower, if a customized formwork needs to be installed, first arrange the side embedded parts in the lower deck horizontally along the specific height of the lower end of the side formwork, and use screws to reinforce the side embedded parts and the formwork from the outside. Then, at the top of the crossbeam reinforcement, tie and fix the cross embedded parts and the crossbeam reinforcement together at a specific symmetrical angle and spacing. Then, pour the concrete. After the concrete solidifies, remove the formwork, so that the side embedded parts and the cross embedded parts are cast and formed as a whole with the crossbeam under the cable tower.

[0017] Step 2: Use the cable tower hoisting equipment to first hoist the lower bearing plate to the bottom of the lower crossbeam of the cable tower, and fit it to the bottom of the lower crossbeam of the cable tower with a rubber pad. Then, manually adjust the distance between the two side plywoods customized according to the needs along the spacing adjustment rail, so that the two side plywoods are fitted to the left and right sides of the lower end of the lower crossbeam of the cable tower. The horizontal mounting holes opened on the two side plywoods are consistent with the embedded height of the side embedded parts, and then reinforced with anchor bolts;

[0018] After the two upper decks are fixed on the upper end of the tower, the two upper decks are fixed on the upper end of the tower.

[0019] The fourth step is to drive the pulling block to move backwards according to the support constraint requirements of the small side box combined hybrid beam through the provided jacking hydraulic push rod. During the displacement of the pulling block, the moving roller installed on the upper end rotates along the moving groove and the side limit groove, changing the position of the moving roller at the upper end of the pulling block, driving the height of the connecting plate and the longitudinal support module to change, thereby lifting the bearing plate to align it horizontally with the upper surface of the permanent support, and cooperating with the permanent support to support the small side box combined hybrid beam from both sides. At the same time, when a slight settlement occurs on the small side box combined hybrid beam due to concrete pouring, the buffer module at the lower end of the connecting plate will move downwards, squeezing the settlement sensor below. When the settlement sensor senses the settlement value, it will transmit the data to the data transmitter. The data transmitter transmits the signal to the control device of the hydraulic jack, and the control device controls the hydraulic jack to automatically lift and compensate according to the settlement height, avoiding repeated manual adjustments.

[0020] Step 5. After the load-bearing plate cooperates with the permanent support to support the small side box combined hybrid beam, the transverse pusher starts to work, pushing the longitudinal lifter to the two sides of the small side box combined hybrid beam for displacement. When the transverse constraint plate in the transverse support module and the side of the small side box combined hybrid beam are vertically staggered, it stops, and then the longitudinal lifter starts to work. Since the longitudinal lifter is divided into an upper and lower structure, the servo motor drive shaft installed in the middle of the lower structure and the guide rollers on both sides drive the upper structure to move upward. When the upper structure moves, the transverse support module installed in the upper structure of the longitudinal lifter will also move synchronously. When the height of the transverse support module is slightly higher than the bottom of the side of the small side box combined hybrid beam, it stops.

[0021] Step six: Start working by setting up the transverse hydraulic self-locking rod, push the docking rod and the tapered rod forward, squeeze the transverse constraint plate and the side of the small side box combined hybrid beam to fit, and at the same time, install the sleeve threaded support rods on both sides of the outer side of the longitudinal lifter superstructure to contact the inner surface of the cable tower for support, and perform transverse constraints on the small side box combined hybrid beam from the left and right sides. Secondly, during the construction process, through the transverse hydraulic self-locking rod, when the wind load causes the small side box combined hybrid beam to undergo lateral displacement, part of the displacement can be automatically released, and the traditional rigid support constraint can be turned into an adjustable rigid support to avoid rigid damage. It will automatically reset after the displacement force value is reduced. In addition, the retractable transverse support structure composed of the docking rod and the tapered rod, combined with the transverse buffer spring sleeved on the outer side of the rear end of the tapered rod, can absorb vibration energy when encountering vibration of construction machinery, reduce vibration risk, and improve safety of use.

[0022] Compared with the prior art, the present invention has at least the following beneficial effects:

[0023] In the above scheme, the transverse hydraulic self-locking rod is set, and when the wind load causes the small side box combined hybrid beam to undergo lateral displacement, part of the displacement can be automatically released, and the traditional rigid static load-bearing support constraint is converted into an adjustable dynamic load-bearing rigid support, thereby avoiding the rigid destruction of the temporary support structure. The transverse support is automatically reset after the displacement force value is reduced. In addition, the front and rear two-stage retractable transverse support composed of the setting docking rod and the tapered rod, combined with the transverse buffer spring sleeved on the outer side of the rear end of the tapered rod, when the tapered rod is subjected to vibration force, it will retract backward and be limited by the tapered block, thereby absorbing the vibration energy generated during the operation of the construction machinery, reducing the impact of construction vibration on the temporary support structure, and improving the safety of the temporary support structure.

[0024] By setting up a longitudinal support module, when a slight settlement occurs on the small side box combined hybrid beam due to concrete pouring, the bearing plate fitted with the beam body will also produce a slight settlement downward along with the settlement. At this time, the connecting plate at the lower end of the bearing plate will be pressed downward by force, and the buffer module located in the middle of the upper end of the longitudinal support module will be displaced downward, and the convex block in the middle of the lower end of the extrusion pad will fit into the settlement sensor at the lower end. When the settlement sensor senses the settlement value, it will transmit the data to the data transmitter. The data transmitter will transmit the signal to the control device of the hydraulic jack, and the control device will control the hydraulic jack to automatically lift and compensate according to the settlement height, avoiding repeated manual adjustments and saving time and effort.

[0025] By setting up the lower bearing plate and the upper bearing plate, the two are positioned and fixed by the side embedded parts and cross embedded parts of the integral structure formed by pouring concrete with the lower cross beam of the cable tower. Then, four sets of tightening hangers are used to pass through the lifting holes and the holes with perpendicular lifting angles to connect and reinforce the lower bearing plate and form a clamping structure installed at the upper and lower ends of the lower cross beam of the cable tower. Compared with the traditional anchoring method, it does not destroy the overall structure and internal stress of the lower cross beam of the cable tower itself. At the same time, due to the two-way constraints of the upper and lower clamps, the integrity of the support node can be enhanced during temporary support, so that the force of the beam is more evenly transmitted to the tower body. During the later disassembly, only the fixing bolts need to be removed, and some components embedded in the lower cross beam of the cable tower can be discarded. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable one skilled in the art to make and use the invention.

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0028] Figure 2 This is an exploded schematic diagram of the three-dimensional structure of the lower deck, upper deck and sliding seat of the present invention;

[0029] Figure 3 This is a schematic diagram of the three-dimensional structure of the lower bearing plate of the present invention;

[0030] Figure 4 This is an exploded schematic diagram of the three-dimensional structure of the upper deck, sliding seat and cross embedded parts of the present invention;

[0031] Figure 5 This is a schematic diagram of the three-dimensional structure of the jacking module of the present invention;

[0032] Figure 6 This is a schematic diagram of the three-dimensional structure assembly of the connecting plate, longitudinal support module, buffer module, settlement sensor and data transmitter of the present invention;

[0033] Figure 7 This is a schematic diagram of the three-dimensional structure of the longitudinal support module of the present invention;

[0034] Figure 8 This is a schematic diagram of the three-dimensional structure of the buffer module of the present invention;

[0035] Figure 9 This is a schematic diagram of the assembly of the three-dimensional structure of the sedimentation sensor and the data transmitter of the present invention;

[0036] Figure 10 This is an exploded schematic diagram of the three-dimensional structure of the transverse support module of the present invention;

[0037] Figure 11 The present invention is attached Figure 2 Schematic diagram of the locally enlarged structure at point A in the middle.

[0038] Reference numerals:

[0039] 1. Lower bearing plate; 101. Lower abutment plate; 102. Spacing adjustment rail; 103. Side clamping plate; 104. Limit block; 105. Rubber pad; 106. Side embedded parts; 2. Upper bearing plate; 201. Upper abutment plate; 202. Slide block; 203. Lifting hole; 204. Cross mounting hole; 3. Tightening boom; 4. Sliding seat; 5. Lifting module; 501. Pulling block; 502. Motion slot; 503. Side limit plate; 504. Side limit slot; 505. Motion roller; 506. Column; 507. Fixed block; 508. Lifting hydraulic push rod; 6. Connecting plate; 7. Longitudinal support module; 701. Double base; 702. Knob support rod; 703. Rectangular column; 704, hydraulic jack; 705, pad; 8, buffer module; 801, square plate; 802, center column; 803, longitudinal buffer spring; 804, threaded joint; 9, settlement sensor; 901, explosion-proof shell; 902, stress sensor; 903, transmission line; 10, data transmitter; 11, load-bearing plate; 12, cross embedded part; 13, sliding adjustment motor; 14, transverse pusher; 15, longitudinal lifter; 16, transverse support module; 161, hollow cylinder; 162, transverse hydraulic self-locking rod; 163, docking rod; 164, conical block; 165, conical rod; 166, transverse buffer spring; 167, transverse constraint plate.

[0040] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0041] The following, in conjunction with the accompanying drawings and specific embodiments, describes in detail the temporary support structure for installing the main beam of a cable-stayed bridge with a small side box composite hybrid beam and its method of use. It is also noted that, to provide a more detailed description, the following embodiments are optimal and preferred embodiments. Those skilled in the art may also employ alternative implementations for known technologies. Furthermore, the accompanying drawings are intended only to provide a more detailed description of the embodiments and are not intended to limit the present invention.

[0042] It should be noted that references in the specification to "one embodiment," "an embodiment," "an exemplary embodiment," "some embodiments," etc. indicate that the described embodiments may include specific features, structures, or characteristics, but not every embodiment necessarily includes such specific features, structures, or characteristics. In addition, when specific features, structures, or characteristics are described in conjunction with an embodiment, it is within the knowledge of persons skilled in the relevant art to implement such features, structures, or characteristics in conjunction with other embodiments (whether or not explicitly described).

[0043] In general, terms can be understood, at least in part, from their use in context. For example, depending at least in part on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending at least in part on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0044] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” means not only “directly on” something but also includes the meaning of being “on” something with intervening features or layers, and “on” or “above” means not only “on” or “above” something but also includes the meaning of being “on” or “above” something with no intervening features or layers.

[0045] Additionally, spatially relative terms such as "below," "beneath," "lower," "above," and "upper" may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as illustrated in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein should be similarly interpreted accordingly.

[0046] like Figures 1 to 11 As shown, an embodiment of the present invention provides a temporary support structure for installing the main beam of a cable-stayed bridge with a small side box composite hybrid beam, comprising a lower deck 1, an upper deck 2 is provided on the left and right sides above the lower deck 1, a tightening hanger 3 is provided on the left and right sides of the lower end of the upper deck 2, a sliding seat 4 is provided on the upper end of the upper deck 2, a jacking module 5 is provided inside the sliding seat 4, a connecting plate 6 is provided above the jacking module 5, a longitudinal support module 7 is provided at the lower end of the connecting plate 6, a buffer module 8 is provided in the middle of the inner side of the longitudinal support module 7, a settlement sensor 9 is provided on the inner side of the lower end of the longitudinal support module 7, a data transmitter 10 is provided on the right side of the settlement sensor 9, a bearing plate 11 is provided at the upper end of the connecting plate 6, a cross embedded part 12 is provided in the middle of the lower end of the upper deck 2, a sliding adjustment motor 13 is provided on the rear side of the middle part of the upper end of the upper deck 2, a transverse pusher 14 is provided inside the left and right sides of the upper end of the sliding seat 4, a longitudinal lifter 15 is provided at the front end of the transverse pusher 14, and a transverse support module 16 is provided inside the upper end of the longitudinal lifter 15.

[0047] The overall length of the lower deck 1 is twice that of the upper deck 2. The upper deck 2 is symmetrically distributed on the left and right. The upper deck 2 and the lower deck 1 are connected by four groups of tightening hangers 3, and each group of tightening hangers 3 is composed of four. Hanging blocks are provided in the middle of the left and right sides of the outer end of the upper deck 2, and four hanging blocks are also provided at the four corners of the upper end of the lower deck 1. The sliding seat 4 is symmetrically distributed on the left and right. The sliding seat 4 is slidably installed between the upper deck 2. A rectangular notch is provided in the middle of the upper end of the sliding seat 4. The inner diameter of the rectangular notch is adapted to the outer diameter of the load-bearing plate 11. Guide sleeves are installed in the four corners below the rectangular notch. The upper end of the guide sleeve is reinforced with the contact end of the load-bearing plate 11 by screws, and the lower end of the guide sleeve is fixed to the sliding The lower end of the inner side of the seat 4 is threadedly installed, and a horizontal bottom groove is provided at the contact end of the jacking module 5 and the sliding seat 4, and the four corners of the upper end of the outer end structure on the left and right sides of the jacking module 5 can be installed with buffer screws and connected to the bearing plate 11. When the internal structure of the jacking module 5 slides, the outer end structures on both sides of the internal structure will not be displaced and maintain a vertical angle with the bearing plate 11. There are four symmetrically distributed connecting plates 6. The lower end of the longitudinal support module 7 is embedded in the inner side of the upper end of the jacking module 5. The outer diameter of the lower end of the longitudinal support module 7 is adapted to the inner diameter of the embedded groove opened on the inner side of the upper end of the internal structure of the jacking module 5. The middle part of the contact end below the longitudinal support module 7 and the buffer module 8 is provided with a The circular hole, longitudinal support module 7, buffer module 8, settlement sensor 9 and data transmitter 10 are symmetrically distributed in four groups. The lower end of the buffer module 8 is welded with a convex block, and the convex block passes through the circular hole opened in the middle of the contact end below the longitudinal support module 7 and the buffer module 8, and extends to the lower outside, maintaining a vertical installation angle with the settlement sensor 9. The settlement sensor 9 and the data transmitter 10 are interconnected. The upper end of the data transmitter 10 is provided with an external pipeline, which is interconnected with the external control device of the hydraulic jack 704. There are two symmetrically distributed bearing plates 11 on the left and right. The cross embedded parts 12 are symmetrically distributed front and back. The upper end of the cross embedded part 12 passes through the interior of the upper plate 2 and extends To the upper outside, the transmission end of the sliding adjustment motor 13 extends forward through the interior of the lower end of the sliding seat 4 and extends to the outside. The transverse pusher 14 is embedded in the interior of the left and right sides of the upper end of the sliding seat 4. The transverse pusher 14 is composed of a pushing hydraulic rod and a pushing block. The pushing block is connected to the longitudinal lifter 15 through four transverse guide rods. The longitudinal lifter 15 is composed of an upper and lower double-layer structure. A servo motor is provided on the inner side of the lower end of the lower structure. Two guide rollers are provided on the left and right sides of the servo motor. The drive shaft of the servo motor and the two guide rollers both pass through the upper structure of the longitudinal lifter 15 and extend to the upper outside. The internal clamp of the upper structure of the longitudinal lifter 15 holds two sets of parallel transverse support modules 16.

[0048] During operation, the side embedded parts 106 and the cross embedded parts 12 are cast together with the lower cross beam of the tower to form an integrated structure, and then the tower lifting equipment is used to lift the lower plate 1 to the bottom of the lower cross beam of the tower, and the rubber pad 105 is fitted with the bottom of the lower cross beam of the tower. Then, the spacing between the two side splints 103 customized according to the needs is adjusted manually along the spacing adjustment rail 102, so that the two side splints 103 are fitted on the left and right sides of the lower end of the lower cross beam of the tower, and the horizontal mounting holes opened in the two side splints 103 are consistent with the embedded height of the side embedded parts 106, and then anchor bolts are used for reinforcement. After the lower plate 1 is installed, a permanent support is installed in the middle of the upper end of the lower cross beam of the tower, and then the tower lifting equipment is used to lift the two The upper deck 2 is hoisted to the upper end of the lower cross beam of the cable tower, and the cross embedded parts 12 installed in advance are passed through the cross mounting holes 204 opened in the two upper decks 2 to complete the positioning, and then nuts are used for reinforcement to fix the two upper decks 2 on the left and right sides of the permanent support. At the same time, the distance between the two upper decks 2 and the permanent support is consistent, and then four sets of tightening hangers 3 are used to pass through the lifting holes 203 and the lifting holes 203 opened on the lower deck 1 at a perpendicular angle to connect and reinforce the lower deck 1 and the upper deck 2 together to form a clamping structure installed at the upper and lower ends of the lower cross beam of the cable tower. Compared with the traditional anchoring method, it does not destroy the overall structure and internal stress of the lower cross beam of the cable tower itself. At the same time, due to the two-way constraints of the upper and lower clamps, when performing temporary support , which can enhance the integrity of the support node and make the force of the beam more evenly transmitted to the tower body. Then, the jacking module 5 starts to work, driving the height of the connecting plate 6 and the longitudinal support module 7 to change, thereby lifting the load-bearing plate 11 to make it horizontally aligned with the upper surface of the permanent support, and cooperating with the permanent support to support the small side box combined hybrid beam from both sides. At the same time, when a slight settlement occurs on the small side box combined hybrid beam due to concrete pouring, the buffer module 8 at the lower end of the connecting plate 6 will move downward, squeezing the settlement sensor 9 below. When the settlement sensor 9 senses the settlement value, it will transmit the data to the data transmitter 10. The data transmitter 10 transmits the signal to the control device of the hydraulic jack 704, and the control device controls it according to the settlement height. The hydraulic jack 704 automatically lifts and compensates to avoid repeated manual adjustments. When the load-bearing plate 11 cooperates with the permanent support to support the small side box combined hybrid beam, the transverse pusher 14 starts to work, pushing the longitudinal lifter 15 to move to both sides of the small side box combined hybrid beam. When the transverse constraint plate 167 in the transverse support module 16 is vertically staggered with the side of the small side box combined hybrid beam, it stops, and then the longitudinal lifter 15 starts to work. Since the longitudinal lifter 15 is divided into an upper and lower structure as a whole, the servo motor drive shaft installed in the middle of the lower structure and the guide rollers on both sides drive the upper structure to move upward. When the upper structure moves, the transverse support module 16 installed in the upper structure of the longitudinal lifter 15 will also move synchronously.When the height of the lateral support module 16 is slightly higher than the bottom of the side of the small side box combined hybrid beam, it stops. Then, the lateral support modules 16 installed symmetrically on both sides start to work, squeezing the lateral restraint plate 167 to fit the side of the hybrid beam, completing the lateral support restraint.

[0049] like Figures 1 to 3 As shown, in this embodiment, the lower supporting plate 1 includes a lower support plate 101, a spacing adjustment rail 102, a side splint 103, a limit block 104, a rubber pad 105 and a side embedded part 106. The upper end of the lower support plate 101 is provided with a spacing adjustment rail 102, and the left and right sides of the upper end of the spacing adjustment rail 102 are provided with side splints 103. The middle part of the upper end of the spacing adjustment rail 102 is provided with a rubber pad 105, and the middle part of the right end of the side splint 103 is provided with a side embedded part 106.

[0050] The lower support plate 101 and the spacing adjustment rail 102 are an integrated structure. Three spacing adjustment rails 102 are arranged in the front, middle and rear of the upper end of the lower support plate 101. There are two side splints 103 symmetrically distributed on the left and right, and there are six limit blocks 104 symmetrically distributed on the left and right. The side splints 103 and the limit blocks 104 are all in a clamping and sliding installation structure with the spacing adjustment rail 102. The side embedded parts 106 are distributed in a horizontal symmetrical manner on the left and right. The side embedded parts 106 are composed of embedded components and external fixing bolts, and the two are in a threaded installation structure.

[0051] During operation, the side splints 103 and the limit blocks 104 can be clamped and slidably installed at the upper end through the set lower support plate 101 and the three spacing adjustment rails 102. Then, according to the width of the lower crossbeam of the cable tower, the spacing between the two side splints 103 is adjusted to adapt to the construction requirements of beams of different widths. Then, rubber pads 105 are laid and installed in the middle area of ​​the two side splints 103 to prevent the spacing adjustment rails 102 from directly contacting the lower end of the crossbeam to avoid wear. Then, the side embedded parts 106 are set and matched with the external fixing bolts for fixing to reinforce the side splints 103 and the left and right sides of the crossbeam. At the same time, the limit blocks 104 are used to limit and fix the left and right side splints 103 on the spacing adjustment rails 102 to ensure the stability of the installation structure between the lower support plate 101 and the lower crossbeam of the cable tower.

[0052] like Figures 1 to 4 As shown, in this embodiment, the upper supporting plate 2 includes an upper support plate 201, a slide block 202, a hanging hole 203 and a cross mounting hole 204. Slide blocks 202 are provided on the left and right sides of the upper end of the upper support plate 201, and hanging holes 203 are opened in front of the left and right sides of the slide block 202. A cross mounting hole 204 begins to be provided in the middle of the upper end of the upper support plate 201.

[0053] The upper support plate 201 and the slide block 202 are in integral contact, and an adjustment groove for the movement of the sliding seat 4 is provided on the inner side of the upper end of the slide block 202. Four hanging holes 203 are provided in front of the left and right sides of the upper end of the upper support plate 201, and two groups of cross mounting holes 204 are symmetrically provided on the front and back sides of the middle area of ​​the upper end of the upper support plate 201 separated by the left and right slide blocks 202.

[0054] During operation, the upper support plate 201 and the lifting hole 203 can be used to lift and collect the lower support plate 101 by tightening the lifting rod 3, so that the upper support plate 201 and the lower support plate 101 form an installation structure for clamping the lower cross beam of the cable tower from the top and bottom. The design of the slide block 202 allows the sliding seat 4 to be slidably installed on the inside, and then the transmission shaft thread of the sliding adjustment motor 13 passes through the interior of the sliding seat 4 and extends to the outside. When the sliding adjustment motor 13 rotates, the sliding seat 4 can be moved back and forth along the slide block 202, thereby adjusting the vertical support position of the jacking module 5 and the load-bearing plate 11. The cross mounting hole 204 can be used to cooperate with the cross embedded part 12 cast in advance with the lower cross beam of the cable tower to position and install the upper support plate 201, and at the same time, ensure the stability of the installation structure of the upper support plate 201 at the top end of the lower cross beam of the cable tower.

[0055] like Figures 1 to 5 As shown, in this embodiment, the jacking module 5 includes a pulling block 501, a motion groove 502, a side limit plate 503, a side limit groove 504, a motion roller 505, a column 506, a fixed block 507 and a lifting hydraulic push rod 508. A motion groove 502 is provided on the inner side of the upper end of the pulling block 501, and side limit plates 503 are provided on the left and right ends of the pulling block 501. A side limit groove 504 is provided on the inner side of the right end of the side limit plate 503. A motion roller 505 is provided at the upper end of the motion groove 502, and columns 506 are provided on the left and right sides of the outer end of the motion roller 505. A fixed block 507 is provided in the middle of the rear end of the pulling block 501, and a lifting hydraulic push rod 508 is provided at the rear end of the fixed block 507.

[0056] The pulling block 501 is cast in one piece, and two movement grooves 502 in the same direction are provided on the front and back inner sides of the upper end. There are two side limit plates 503 symmetrically distributed on the left and right. Two hollow bolts are threadedly installed on the front and back sides of the upper ends of the two side limit plates 503. The upper ends of the hollow bolts can be installed with buffer screws for connecting the side limit plates 503 and the bearing plate 11. Two side limit grooves 504 in the same direction are provided on the inner sides of the two side limit plates 503. The lower end height of the side limit groove 504 is adapted to the lower end height and inclination angle of the movement groove 502. There are two movement rollers 505 symmetrically distributed. The movement roller 505 consists of two inner and outer roller bodies. The inner The inner roller body is a solid structure, the outer roller body is a hollow structure, the inner and outer roller bodies are installed in a sleeve-type manner, the inner roller body and the column 506 are reinforced together by a threaded pin, and the left and right ends of the inner roller body pass through the inside of the side limit groove 504 and extend to the outside. There are four columns 506 symmetrically distributed, and an embedded groove is opened on the inner side of the upper end of the column 506. The internal diameter of the embedded groove is adapted to the external diameter of the lower end of the longitudinal support module 7, and the internal depth of the embedded groove is only half of the overall height of the longitudinal support module 7. The fixed block 507 and the pulling block 501 are reinforced by bolts, and the front end of the lifting hydraulic push rod 508 is clamped and installed inside the fixed block 507.

[0057] During operation, the side limit plates 503 are provided, and due to the hollow bolts threadedly installed on the front and rear sides of the upper end thereof, buffer screws can be installed on the inner side thereof to connect the side limit plates 503 and the load-bearing plate 11. Laterally, when the lifting hydraulic push rod 508 drives the pulling block 501 to move, the side limit plates 503 on both sides do not undergo lateral displacement changes, because the two sides of the moving roller 505 are limited by the side limit grooves 504. At the same time, the longitudinal support module 7 and the connecting plate 6 embedded on the inner side of the upper side of the column 506 fixedly installed with the moving roller 505 work It is also fixed to the bottom of the supporting plate 11, which will allow the moving roller 505 to rotate inside the moving groove 502 along the angle of the side limit groove 504, thereby changing the position of the moving roller 505 inside the moving groove 502, thereby driving the column 506 and the side limit plate 503 to rise as a whole, thereby achieving the effect of vertical support for the supporting plate 11. Compared with the screw push, the overall force of this lifting movement mode will be more stable. At the same time, since the push-lifting working mode is an existing well-known technology, it will not be described in detail in this article.

[0058] like Figures 6 and 7As shown, in this embodiment, the longitudinal support module 7 includes a double-layer base 701, a knob support rod 702, a rectangular column 703, a hydraulic jack 704 and a pad 705. The four corners of the upper end of the double-layer base 701 are provided with a knob support rod 702, the left and right sides of the upper end of the double-layer base 701 are provided with a rectangular column 703, the interior of the rectangular column 703 is provided with a hydraulic jack 704, and the middle part of the upper end of the double-layer base 701 is provided with a pad 705.

[0059] The double-layer base 701 is composed of two upper and lower rectangular plates, which are supported by knob support rods 702. A circular hole is opened in the middle of the upper end of the upper rectangular plate. The upper rectangular plate and the knob support rod 702 are installed in a clamping sleeve manner, and the lower rectangular plate and the knob support rod 702 are installed in a threaded manner. When it is necessary to adjust the distance between the upper and lower rectangular plates, it is only necessary to control the length of the lower end of the knob support rod 702 extending into the lower rectangular plate. The rectangular column 703 and the upper rectangular plate of the double-layer base 701 are an integrated structure. There are two rectangular columns 703 symmetrically distributed on the left and right. A hydraulic jack 704 is installed inside the two rectangular columns 703. The hydraulic jack 704 The upper end passes through the interior of the upper end of the rectangular column 703 and extends to the upper outside, and is bolted to the lower end of the connecting plate 6. The hydraulic jack 704 adopts an existing device with a self-locking function, which is a well-known technology. Therefore, it will not be described in detail in this article. The pad 705 is made of rubber material, and a square pad is embedded and installed on the inner side of the upper end of the pad 705. Four threaded mounting holes are opened in the middle of the upper end of the square pad. The spacing of the four threaded mounting holes is adapted to the installation spacing of the longitudinal buffer spring 803 in the buffer module 8. A protrusion is welded and installed on the lower end of the pad 705. The protrusion passes through the circular hole opened in the middle of the upper end of the upper rectangular plate and extends to the lower outside.

[0060] During operation, a double-layer base 701 is set up, and a settlement sensor 9 and a data transmitter 10 are installed in the middle of its inner side. When a slight settlement is generated on the small side box combined hybrid beam due to concrete pouring, the bearing plate 11 that is in contact with the beam body will also produce a slight settlement downward along with the settlement. At this time, the connecting plate 6 at the lower end of the bearing plate 11 will be pressed downward by force, and the buffer module 8 located in the middle of the upper end of the longitudinal support module 7 will move downward, and the convex block in the middle of the lower end of the extrusion pad 705 will be in contact with the settlement sensor 9 at the lower end. When the settlement sensor 9 senses the settlement value, it will transmit the data to the data transmitter 10. The data transmitter 10 transmits the signal to the control device of the hydraulic jack 704, and the control device controls the hydraulic jack 704 to automatically lift and compensate according to the settlement height, avoiding repeated manual adjustments and saving time and effort.

[0061] like Figures 8 and 9As shown, in this embodiment, the buffer module 8 includes a square plate 801, a central column 802, a longitudinal buffer spring 803 and a threaded joint 804. The central column 802 is provided in the middle of the upper end of the square plate 801, the lower end of the square plate 801 is provided with a longitudinal buffer spring 803, and the lower end of the longitudinal buffer spring 803 is provided with a threaded joint 804; the settlement sensor 9 includes an explosion-proof shell 901, a stress sensor 902 and a transmission line 903. The stress sensor 902 is provided inside the explosion-proof shell 901, and the transmission line 903 is provided on the right side of the outer end of the explosion-proof shell 901.

[0062] The lower end thread of the center column 802 extends to the interior of the square plate 801, and there are four longitudinal buffer springs 803 symmetrically distributed, and the upper end of the longitudinal buffer spring 803 and the lower end of the square plate 801 are welded and fixed together, and the lower end of the longitudinal buffer spring 803 is welded and fixed together with the upper end of the threaded joint 804, and there are four threaded joints symmetrically distributed; the explosion-proof shell 901 is installed in the middle of the rectangular plate below the double-layer base 701 by bolts, and the stress sensor 902 is fixedly installed inside the explosion-proof shell 901, and the upper end of the stress sensor 902 passes through the interior of the upper end of the explosion-proof shell 901 and extends to the upper outside. The stress sensor 902 is a downward pressure force sensing device, which is a well-known technology in the existing art. Therefore, it will not be described in detail in this article. The rear end of the transmission line 903 passes through the outer end of the explosion-proof shell 901 and is connected to the stress sensor 902 installed inside. At the same time, the front end of the transmission line 903 is interconnected with the data transmitter 10.

[0063] During operation, the connecting plate 6 at the lower end of the supporting plate 11 is forced to move downward by the longitudinal buffer spring 803. When the center column 802 fixed to the middle part of the lower end of the connecting plate 6 is squeezed and moves downward, the longitudinal buffer spring 803 will buffer the squeezing force and weaken the downward pressure, and will not cause damage to the overall structure of the longitudinal support module 7, thereby playing a role of buffering protection. When the longitudinal buffer spring 803 squeezes the pad 705 to produce deformation, the protrusion at the lower end of the pad 705 will contact the upper end of the stress sensor 902, and the settlement height is monitored by the stress sensor 902. The data is transmitted to the data transmitter 10 through the transmission line 903, and the data transmitter 10 transmits the signal to the control device of the hydraulic jack 704. The control device controls the hydraulic jack 704 to automatically lift and compensate for the settlement height according to the settlement height.

[0064] like Figure 1 、 Figure 10 and Figure 11As shown, in this embodiment, the lateral support module 16 includes a hollow cylinder 161, a lateral hydraulic self-locking rod 162, a docking rod 163, a conical block 164, a conical rod 165, a lateral buffer spring 166 and a lateral constraint plate 167. A lateral hydraulic self-locking rod 162 is provided in the middle of the rear end of the hollow cylinder 161, and a docking rod 163 is provided at the front end of the lateral hydraulic self-locking rod 162. The outer end of the docking rod 163 is sleeved with a conical block 164, and the front end of the docking rod 163 is provided with a conical rod 165. A lateral buffer spring 166 is provided on the outer side of the rear end of the conical rod 165, and a lateral constraint plate 167 is provided at the front end of the conical rod 165.

[0065] The rear end of the hollow cylinder 161 is provided with a retaining groove, and the transverse hydraulic self-locking rod 162 is reinforced with the rear end of the hollow cylinder 161 by bolts, and the docking rod 163 and the conical block 164 are sleeved and installed, and screws are used to reinforce the sleeve contact ends of the two to form an integrated structure. The thicker end of the conical block 164 is reinforced with bolts to the inner wall of the hollow cylinder 161, and the transverse buffer spring 166 is sleeved and installed on the outer side of the rear end of the conical rod 165. The rear end of the conical rod 165 extends to the inside of the front end of the docking rod 163, and the two are sleeved and installed. A limit ring is provided at one end of the conical rod 165 extending to the inner side of the docking rod 163 to prevent the tail end of the conical rod 165 from detaching from the docking rod 163. At the same time, the docking rod 163 and the conical rod 165 are spliced ​​in two groups front and back, and the front end of the front conical rod 165 is welded and fixed to the transverse constraint plate 167.

[0066] During operation, the transverse hydraulic self-locking rod 162 is set, and when the wind load causes the small side box combined hybrid beam to undergo lateral displacement, part of the displacement can be automatically released, and the traditional rigid static load-bearing support constraint is converted into an adjustable dynamic load-bearing rigid support, avoiding the rigid destruction of the temporary support structure. The transverse support automatically resets after the displacement force value is reduced. In addition, the front and rear two-stage retractable transverse support composed of the set docking rod 163 and the tapered rod 165, combined with the transverse buffer spring 166 sleeved on the outer side of the rear end of the tapered rod 165, when the tapered rod 165 is subjected to vibration force, it will retract backward and be limited by the tapered block 164, thereby absorbing the vibration energy generated during the operation of the construction machinery, reducing the impact of construction vibration on the temporary support structure, and improving the safety of the temporary support structure.

[0067] A method for using a temporary support structure for installing a main beam of a cable-stayed bridge with a small side box composite hybrid beam comprises the following steps:

[0068] Step 1: After the cross beam reinforcement is tied under the cable tower, when the customized formwork needs to be installed, the side embedded parts 106 in the lower deck 1 are first arranged horizontally along the specific height of the lower end of the side formwork, and the side embedded parts 106 and the formwork are reinforced from the outside with screws, and then the cross embedded parts 12 are tied and fixed to the cross beam reinforcement at a specific symmetrical angle and spacing at the top of the cross beam reinforcement, and then the concrete pouring work is carried out. After the concrete solidifies, the formwork is removed, so that the side embedded parts 106 and the cross embedded parts 12 are cast and formed as a whole with the cross beam under the cable tower;

[0069] Step 2: Use the cable tower hoisting equipment to first hoist the lower bearing plate 1 to the bottom of the lower crossbeam of the cable tower, and fit the rubber pad 105 to the bottom of the lower crossbeam of the cable tower. Then, manually adjust the distance between the two side splints 103 customized according to the needs along the spacing adjustment rail 102, so that the two side splints 103 are fitted to the left and right sides of the lower end of the lower crossbeam of the cable tower. The horizontal mounting holes opened in the two side splints 103 are consistent with the embedded height of the side embedded parts 106, and then reinforced with anchor bolts;

[0070] Step 3: After the lower deck 1 is installed, a permanent support is installed in the middle of the upper end of the lower cross beam of the cable tower. Then, the cable tower hoisting equipment is used to hoist the two upper decks 2 to the upper end of the lower cross beam of the cable tower. The cross mounting holes 204 opened in the two upper decks 2 are passed through according to the pre-installed cross embedded parts 12 to complete the positioning. Then, nuts are used for reinforcement to fix the two upper decks 2 on the left and right sides of the permanent support. At the same time, the distance between the two upper decks 2 and the permanent support is consistent. Then, four sets of Tighten the hanger rod 3 through the hanging hole 203 and the hole perpendicular to the hanging hole 203 opened on the lower deck 1, and connect and reinforce the lower deck 1 and the upper deck 2 together to form a clamping structure installed at the upper and lower ends of the lower crossbeam of the cable tower. Compared with the traditional anchoring method, it does not damage the overall structure and internal stress of the lower crossbeam of the cable tower. At the same time, due to the two-way constraints of the upper and lower clamps, the integrity of the support node can be enhanced during temporary support, so that the force of the beam is more evenly transmitted to the tower body;

[0071] Step 4: According to the support and constraint requirements of the small side box combined hybrid beam, the pulling block 501 is driven to move backward through the provided lifting hydraulic push rod 508. During the displacement of the pulling block 501, the moving roller 505 installed on the upper end rotates along the moving groove 502 and the side limit groove 504, changing the position of the moving roller 505 on the upper end of the pulling block 501, driving the height of the connecting plate 6 and the longitudinal support module 7 to change, thereby lifting the load-bearing plate 11 to align it horizontally with the upper surface of the permanent support, cooperating with the permanent support. The small side box composite hybrid beam is supported from both sides. At the same time, when a slight settlement occurs on the small side box composite hybrid beam due to concrete pouring, the buffer module 8 at the lower end of the connecting plate 6 will move downward, squeezing the settlement sensor 9 below. When the settlement sensor 9 senses the settlement value, it will transmit the data to the data transmitter 10. The data transmitter 10 then transmits the signal to the control device of the hydraulic jack 704. The control device controls the hydraulic jack 704 to automatically lift and compensate according to the settlement height, avoiding repeated manual adjustments.

[0072] Step 5. After the load-bearing plate 11 cooperates with the permanent support to support the small side box combined hybrid beam, the transverse pusher 14 starts to work, pushing the longitudinal lifter 15 to move to both sides of the small side box combined hybrid beam, and stops when the transverse constraint plate 167 in the transverse support module 16 is vertically staggered with the side of the small side box combined hybrid beam. Then the longitudinal lifter 15 starts to work. Since the longitudinal lifter 15 is divided into an upper and lower structure as a whole, the servo motor drive shaft installed in the middle of the lower structure and the guide rollers on both sides drive the upper structure to move upward. When the upper structure moves, the transverse support module 16 installed in the upper structure of the longitudinal lifter 15 will also move synchronously. When the height of the transverse support module 16 is slightly higher than the bottom of the side of the small side box combined hybrid beam, it stops.

[0073] Step 6: The transverse hydraulic self-locking rod 162 starts working, pushing the docking rod 163 and the tapered rod 165 forward, pushing the transverse constraint plate 167 to fit the side of the small side box combined hybrid beam. At the same time, the sleeve threaded support rods are installed on both sides of the outer side of the upper structure of the longitudinal lifter 15 to contact the inner surface of the cable tower for support, and the small side box combined hybrid beam is laterally constrained from the left and right sides. Secondly, during the construction process, the transverse hydraulic self-locking rod 162 is set, when the wind load causes the small side box combined hybrid beam to undergo lateral displacement, it can automatically release part of the displacement, and the traditional rigid support constraint is converted into an adjustable rigid support to avoid rigid damage. It automatically resets after the displacement force value is reduced. In addition, the retractable transverse support structure composed of the docking rod 163 and the tapered rod 165, combined with the transverse buffer spring 166 sleeved on the outer side of the rear end of the tapered rod 165, can absorb vibration energy when encountering vibration of construction machinery, reduce vibration risk, and improve safety of use.

[0074] The working principle of the technical solution provided by the present invention is as follows: through the transverse hydraulic self-locking rod 162, when the wind load drives the small side box combined hybrid beam to undergo transverse displacement, part of the displacement can be automatically released, and the traditional rigid static load-bearing support constraint is transformed into an adjustable dynamic load-bearing rigid support, avoiding the rigid destruction of the temporary support structure, and the transverse support automatically resets after the displacement force value is reduced. In addition, the front and rear double-stage retractable transverse support composed of the docking rod 163 and the tapered rod 165 is combined with the transverse buffer spring 166 sleeved on the outer side of the rear end of the tapered rod 165. When the tapered rod 165 is When the shaped rod 165 is subjected to the vibration force, it will shrink backward and be limited by the conical block 164, thereby absorbing the vibration energy generated during the operation of the construction machinery, reducing the impact of the construction vibration on the temporary support structure, and improving the safety of the temporary support structure; secondly, by setting the longitudinal support module 7, when a slight settlement is generated on the small side box combined hybrid beam due to concrete pouring, the bearing plate 11 fitted with the beam body will also produce a slight settlement downward along with the settlement. At this time, the connecting plate 6 at the lower end of the bearing plate 11 will be pressed downward by force, squeezing the buffer located in the middle of the upper end of the longitudinal support module 7. The punching module 8 will move downward, and the convex block in the middle of the lower end of the squeezing pad 705 will fit the settlement sensor 9 at the lower end. When the settlement sensor 9 senses the settlement value, it will transmit the data to the data transmitter 10. The data transmitter 10 transmits the signal to the control device of the hydraulic jack 704, and the control device controls the hydraulic jack 704 to automatically lift and compensate according to the settlement height, avoiding manual repeated adjustments, saving time and effort; by setting the lower plate 1 and the upper plate 2, the two are fixed by the side embedded parts 106 and the cross embedded parts 12 of the integral structure formed by pouring concrete with the lower cross beam of the cable tower. After being fixed in position, four sets of tightening hangers 3 are used to penetrate the lifting holes 203 and the holes perpendicular to the lifting holes 203 to connect and reinforce the lower plate 1 and the upper plate 2, forming a clamping structure installed at the upper and lower ends of the lower crossbeam of the cable tower. Compared with the traditional anchoring method, it does not destroy the overall structure and internal stress of the lower crossbeam of the cable tower itself. At the same time, due to the two-way constraints of the upper and lower clamps, the integrity of the support node can be enhanced during temporary support, so that the force of the beam is more evenly transmitted to the tower body. During the later disassembly, only the fixing bolts need to be removed, and some components embedded in the lower crossbeam of the cable tower are discarded.

[0075] The present invention encompasses any alternatives, modifications, equivalents, and solutions that fall within the spirit and scope of the present invention. To provide a thorough understanding of the present invention, specific details are described in detail below in connection with the preferred embodiments of the present invention, but those skilled in the art will be able to fully understand the present invention without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of the present invention, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0076] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A temporary support structure for installing the main beam of a cable-stayed bridge with a small side box composite hybrid beam and a method for using the structure, characterized in that: The lifting mechanism is a lifting mechanism, and a lifting mechanism is installed in the lifting mechanism of the lifting mechanism, and a lifting mechanism is installed in the lifting mechanism of the lifting mechanism.

2. The temporary support structure for installing the main beam of a cable-stayed bridge with a small side box composite hybrid beam according to claim 1 is characterized in that: The lower supporting plate includes a lower support plate, a spacing adjustment rail, a side splint, a limit block, a rubber pad and a side embedded part. The upper end of the lower support plate is provided with a spacing adjustment rail, and side splints are provided on the left and right sides of the upper end of the spacing adjustment rail. A rubber pad is provided in the middle of the upper end of the spacing adjustment rail, and a side embedded part is provided in the middle of the right end of the side splint.

3. The temporary support structure for installing the main beam of a cable-stayed bridge with a small side box composite hybrid beam according to claim 1 is characterized in that: The upper supporting plate includes an upper support plate, a slide block, a hanging hole and a cross mounting hole. Slide blocks are provided on the left and right sides of the upper end of the upper support plate. Hanging holes are opened in front of the left and right sides of the slide block. A cross mounting hole is provided starting from the middle of the upper end of the upper support plate.

4. The temporary support structure for installing the main beam of a cable-stayed bridge with a small side box composite hybrid beam according to claim 1 is characterized in that: The jacking module includes a pulling block, a motion groove, a side limit plate, a side limit groove, a motion roller, a column, a fixed block and a jacking hydraulic push rod. A motion groove is provided on the inner side of the upper end of the pulling block, and side limit plates are provided on the left and right ends of the pulling block. A side limit groove is provided on the inner side of the right end of the side limit plate. A motion roller is provided at the upper end of the motion groove, and columns are provided on the left and right sides of the outer end of the motion roller. A fixed block is provided in the middle of the rear end of the pulling block, and a lifting hydraulic push rod is provided at the rear end of the fixed block.

5. The temporary support structure for installing the main beam of a cable-stayed bridge with a small side box composite hybrid beam according to claim 1 is characterized in that: The longitudinal support module includes a double-layer base, a knob support rod, a rectangular column, a hydraulic jack and a pad. The four corners of the upper end of the double-layer base are provided with a knob support rod, the left and right sides of the upper end of the double-layer base are provided with a rectangular column, the interior of the rectangular column is provided with a hydraulic jack, and the middle part of the upper end of the double-layer base is provided with a pad.

6. The temporary support structure for installing the main beam of a cable-stayed bridge with a small side box composite hybrid beam according to claim 1 is characterized in that: The buffer module includes a square plate, a central column, a longitudinal buffer spring and a threaded joint. The central column is provided in the middle of the upper end of the square plate, the lower end of the square plate is provided with a longitudinal buffer spring, and the lower end of the longitudinal buffer spring is provided with a threaded joint.

7. The temporary support structure for installing the main beam of a cable-stayed bridge with a small side box composite hybrid beam according to claim 1 is characterized in that: The settlement sensor comprises an explosion-proof shell, a stress sensor and a transmission line. The stress sensor is arranged inside the explosion-proof shell, and the transmission line is arranged on the right side of the outer end of the explosion-proof shell.

8. The temporary support structure for installing the main beam of a cable-stayed bridge with a small side box composite hybrid beam according to claim 1 is characterized in that: The lateral support module includes a hollow cylinder, a lateral hydraulic self-locking rod, a docking rod, a conical block, a conical rod, a lateral buffer spring and a lateral constraint plate. A lateral hydraulic self-locking rod is provided in the middle of the rear end of the hollow cylinder, a docking rod is provided at the front end of the lateral hydraulic self-locking rod, a conical block is sleeved on the outer end of the docking rod, a conical rod is provided at the front end of the docking rod, a lateral buffer spring is provided on the outer side of the rear end of the conical rod, and a lateral constraint plate is provided at the front end of the conical rod.

9. The temporary support structure for installing the main beam of a cable-stayed bridge with a small side box composite hybrid beam according to claim 1 is characterized in that: The upper supporting plate is symmetrically distributed on the left and right, and the upper supporting plate and the lower supporting plate are connected by four groups of tightening hangers, and each group of tightening hangers consists of four. Hanging blocks are provided in the middle of the left and right sides of the outer end of the upper supporting plate, and four hanging blocks are provided at the four corners of the upper end of the lower supporting plate. A rectangular slot is opened in the middle of the upper end of the sliding seat, and the inner diameter of the rectangular slot is matched with the outer diameter of the load-bearing plate. There are four symmetrically distributed connecting plates, and the lower end of the supporting module is embedded in the inner side of the upper end of the jacking module. The supporting module, buffer module, settlement sensor and data transmitter are symmetrically distributed in four groups. The cross embedded parts are symmetrically distributed front and back, and the upper end of the cross embedded parts passes through the interior of the upper supporting plate and extends to the upper outside. The driving end of the sliding adjustment motor extends forward, passes through the interior of the lower end of the sliding seat, and extends to the outside.

10. The method for using the temporary support structure for installing the main beam of a cable-stayed bridge with a small side box composite hybrid beam according to claims 1-9 is characterized in that: The following steps are involved: Step 1: After the crossbeam reinforcement is tied at the lower end of the cable tower, if a customized formwork needs to be installed, first arrange the side embedded parts in the lower deck horizontally along the specific height of the lower end of the side formwork, and use screws to reinforce the side embedded parts and the formwork from the outside. Then, at the top of the crossbeam reinforcement, tie and fix the cross embedded parts and the crossbeam reinforcement together at a specific symmetrical angle and spacing. Then, pour the concrete. After the concrete solidifies, remove the formwork, so that the side embedded parts and the cross embedded parts are cast and formed as a whole with the crossbeam under the cable tower. Step 2: Use the cable tower hoisting equipment to first hoist the lower bearing plate to the bottom of the lower crossbeam of the cable tower, and fit it to the bottom of the lower crossbeam of the cable tower with a rubber pad. Then, manually adjust the distance between the two side plywoods customized according to the needs along the spacing adjustment rail, so that the two side plywoods are fitted to the left and right sides of the lower end of the lower crossbeam of the cable tower. The horizontal mounting holes opened on the two side plywoods are consistent with the embedded height of the side embedded parts, and then reinforced with anchor bolts; After the two upper decks are fixed on the upper end of the tower, the two upper decks are fixed on the upper end of the tower. The fourth step is to drive the pulling block to move backwards according to the support constraint requirements of the small side box combined hybrid beam through the provided jacking hydraulic push rod. During the displacement of the pulling block, the moving roller installed on the upper end rotates along the moving groove and the side limit groove, changing the position of the moving roller at the upper end of the pulling block, driving the height of the connecting plate and the longitudinal support module to change, thereby lifting the bearing plate to align it horizontally with the upper surface of the permanent support, and cooperating with the permanent support to support the small side box combined hybrid beam from both sides. At the same time, when a slight settlement occurs on the small side box combined hybrid beam due to concrete pouring, the buffer module at the lower end of the connecting plate will move downwards, squeezing the settlement sensor below. When the settlement sensor senses the settlement value, it will transmit the data to the data transmitter. The data transmitter transmits the signal to the control device of the hydraulic jack, and the control device controls the hydraulic jack to automatically lift and compensate according to the settlement height, avoiding repeated manual adjustments. Step 5. After the load-bearing plate cooperates with the permanent support to support the small side box combined hybrid beam, the transverse pusher starts to work, pushing the longitudinal lifter to the two sides of the small side box combined hybrid beam for displacement. When the transverse constraint plate in the transverse support module and the side of the small side box combined hybrid beam are vertically staggered, it stops, and then the longitudinal lifter starts to work. Since the longitudinal lifter is divided into an upper and lower structure, the servo motor drive shaft installed in the middle of the lower structure and the guide rollers on both sides drive the upper structure to move upward. When the upper structure moves, the transverse support module installed in the upper structure of the longitudinal lifter will also move synchronously. When the height of the transverse support module is slightly higher than the bottom of the side of the small side box combined hybrid beam, it stops. Step six: Start working by setting up the transverse hydraulic self-locking rod, push the docking rod and the tapered rod forward, squeeze the transverse constraint plate and the side of the small side box combined hybrid beam to fit, and at the same time, install the sleeve threaded support rods on both sides of the outer side of the longitudinal lifter superstructure to contact the inner surface of the cable tower for support, and perform transverse constraints on the small side box combined hybrid beam from the left and right sides. Secondly, during the construction process, through the transverse hydraulic self-locking rod, when the wind load causes the small side box combined hybrid beam to undergo lateral displacement, part of the displacement can be automatically released, and the traditional rigid support constraint can be turned into an adjustable rigid support to avoid rigid damage. It will automatically reset after the displacement force value is reduced. In addition, the retractable transverse support structure composed of the docking rod and the tapered rod, combined with the transverse buffer spring sleeved on the outer side of the rear end of the tapered rod, can absorb vibration energy when encountering vibration of construction machinery, reduce vibration risk, and improve safety of use.

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