Assembled composite material hollow tubular column type emergency supporting device

Abstract

The invention discloses a split mounting type composite material hollow tubular column type emergency supporting device which comprises a composite material hollow tubular column, an inner inserting connecting assembly, a flange piece, a bolt connecting piece and a jacking adjusting base, and the inner inserting connecting assembly and the flange piece are located at the two ends of the composite material hollow tubular column to form a module supporting unit. The module supporting units and the jacking adjusting base are connected through bolt connecting pieces, and the module supporting units and the jacking adjusting base are assembled into a whole set of emergency supporting device. According to the assembled structure, local buckling and end crushing damage of the composite pipe wall can be avoided, effective end connection of the large-diameter composite pipe is achieved, and the bearing capacity of the structure is improved. The invention has the properties of simple structure, high modularization degree, high assembly speed, low operation intensity, high construction efficiency and the like, and solves the problem that the emergency support cannot be quickly constructed when large engineering machinery cannot reach complex regions of mountainous regions; manufacturing, assembling and maintenance are easy, production and maintenance cost is low, and popularization is easy.

Description

Technical Field

[0001] The invention belongs to the technical field of emergency repair and rapid construction of bridge engineering, and relates to a assembled composite material hollow pipe column type emergency support device. Background Technique

[0002] Bridge piers are important components of bridges, mainly transferring the self-weight of bridge span main girders and traffic loads on the bridge deck to the foundation and subgrade. However, during the service life of bridge piers, affected by natural disasters or human factors such as earthquakes, floods, falling rocks, debris flows, explosion impacts, and vehicle collisions, the original bridge piers will suffer varying degrees of damage or even be completely destroyed, thereby affecting the safety and passability of the original bridge span main girders. When the bearing capacity of the bridge span main girder is insufficient or the bridge pier is moderately damaged, the bearing capacity of the original bridge span main girder can be improved by adding emergency supports to ensure the safe passage of vehicles; when the bridge pier is severely damaged or a temporary emergency repair beam is constructed due to the complete collapse of the upper bridge span main girder, it is even more necessary to construct emergency supports to quickly repair and open up the bridge. Therefore, quickly constructing emergency supports is crucial for the efficient implementation of bridge emergency repair and opening up.

[0003] Currently, the commonly used emergency supports mainly include traditional engineering devices such as wooden piles, steel pipes, steel trusses, lattice steel columns, and precast concrete pile columns. Among them, due to the limited strength and elastic modulus of wood, the constructed emergency supports often have insufficient bearing capacity and large deformations. Steel has high strength and large elastic modulus, but due to its large density, the weight of a single component is large, often requiring welding and assembly, with high operation intensity, low construction efficiency, and poor transportation portability, making steel structures such as steel pipe columns, lattice columns, and steel trusses not conducive to use in complex mountainous environments where mechanical transportation is difficult. The weight and size of a single precast concrete module are both large, with poor portability or convenient transportation, and relying on engineering equipment during transportation and operation, which is not conducive to emergency use in mountainous environments. Therefore, it is necessary to explore a lightweight assembled emergency support device that can be quickly constructed to meet the property requirements of light weight, high strength, convenient transportation, manual handling and assembly, low working intensity, and fast operation efficiency for application in complex mountainous environments.

[0004] Fiber-reinforced composite material is a new type of lightweight and high-strength civil engineering structural material, with a specific strength and specific stiffness far higher than those of traditional steel and concrete, and is expected to meet the structural lightweight requirements under special engineering backgrounds, and then realize functions such as manual assembly, convenient transportation, and rapid construction through the lightweight of the structure. Among them, in the aspect of fiber-reinforced composite materials used in emergency support structures, there are few reports on current engineering applications or research cases, and the existing research cases are mainly large-diameter composite material pipe column structures with solid tube walls.

[0005] However, when the large-diameter composite material pipe column with a solid wall is subjected to a large axial compression load, local buckling is likely to occur due to the relatively thin wall, and the end composite material pipe wall is extremely prone to crushing damage when supporting the main beam of the upper bridge span due to the lack of a reliable end metal connection. In addition, since the composite material pipe column cannot be directly welded like metal and is not suitable for bolt or glue connection methods, its end connection and joint design are very difficult, and there is currently a lack of an efficient end connection method. Furthermore, due to the lack of an effective end connection method, it cannot be processed into a segmented structure and designed into an assembled structure. If assembly cannot be achieved, it cannot be carried manually and quickly constructed due to its large weight and volume during overall handling, so it will be unable to complete the operation under the complex terrain conditions of mountains where large construction machinery cannot reach. Summary of the Invention

[0006] Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide a new type of assembled composite material pipe column type emergency support device, which combines lightweight and high-strength fiber-reinforced composite materials with a new type of wall hole ring-distributed hollow pipe column structure type, and solves the problems existing in the support of the large-diameter solid wall composite material pipe column, such as easy buckling of the pipe wall, lack of an efficient end connection method, inability to be segmented and assembled, manual handling, and inability to be quickly constructed on site under mountain conditions. Through the emergency support device of the present invention, the structural stability and ultimate bearing capacity of the composite material emergency support can be effectively improved, the quality and volume of the assembled unit can be reduced, the manual handling and assembly efficiency can be improved, and the scope of rapid construction under mountain conditions can be expanded.

[0007] To achieve the above purpose, the present invention provides an assembled composite material hollow pipe column type emergency support device, which includes: A composite material hollow pipe column with a plurality of through holes formed in a ring distribution inside the pipe wall; An internal insertion connection component for connecting to both ends of the composite material hollow pipe column to form a module support unit; the internal insertion connection component includes an outer sleeve, an inner lining tube, and an end connection disc, and a plurality of metal rods are provided on the end connection disc; when the metal rods are correspondingly inserted into the through holes, the outer sleeve and the inner lining tube are respectively located on the outer side and the inner side of the pipe wall of the composite material hollow pipe column and can be fixedly connected to the composite material hollow pipe column; A flange member connected to the side of the end connection disc away from the metal rods, and the flange member is used for fixedly connecting to the flange member of another module support unit to assemble adjacent module support units; A jacking adjustment base for fixedly connecting to the flange member at the bottom of the module support unit, and by adjusting the height of the jacking adjustment base, the module support unit can be tightened and supported to transfer force.

[0008] Optionally, the shape of the through hole is circular or rectangular; a plurality of through holes distributed in a ring array are arranged in a single row or multiple rows.

[0009] Optionally, when the metal rod is correspondingly inserted into the through hole, the transition section where the composite hollow pipe column and the inner inserted connection assembly are combined is wound and strengthened with carbon fiber cloth or glass fiber cloth, or wrapped with a split composite material pipe.

[0010] Optionally, the outer sleeve, the inner lining pipe and the metal rod are fixedly connected to the composite hollow pipe column by colloidal pasting or cold extrusion process. When the cold extrusion process is used for fixed connection, tooth groove structures are arranged on the inner wall of the outer sleeve and the outer wall of the inner lining pipe.

[0011] Optionally, the tooth groove structure includes circumferential rectangular teeth, circumferential thread teeth, longitudinal triangular teeth or sharp special-shaped tooth grooves.

[0012] Optionally, the end connection disc and the flange are welded, integrally formed or manufactured by a cutting forming process.

[0013] Optionally, the composite hollow pipe column is prepared from fiber-reinforced resin matrix composite materials, metal matrix composite materials or polymer matrix composite materials, or prepared from at least one of fiber-reinforced resin matrix composite materials, metal matrix composite materials or polymer matrix composite materials and high-strength metal materials.

[0014] Optionally, the jacking adjustment base includes a screw rod lifting device, an inner tray and a hand crank. By turning the hand crank, the screw rod lifting device can be driven to adjust the height of the jacking adjustment base.

[0015] Optionally, the jacking adjustment base and the flange are fixedly connected by bolt connectors.

[0016] Optionally, both the outer sleeve and the inner lining pipe are metal parts.

[0017] Compared with the prior art, the present invention has the following beneficial effects: When the assembled composite hollow pipe column type emergency support device of the present invention is in use, by installing the inner inserted connection assembly at both ends of the composite hollow pipe column, a module support unit can be obtained. The metal pipe in the inner inserted connection assembly correspondingly inserted into the through hole in the wall of the composite hollow pipe column can ensure that the positioning forms of each module support unit are consistent. At the same time, the outer sleeve and the inner lining pipe are used to combine the inner inserted connection assembly and the composite hollow pipe column into a firm whole through cold extrusion or colloidal curing for subsequent sequential splicing, which is convenient to use and stable and reliable.

[0018] (2) The lightweight assembled emergency support device of the present invention has the attributes of simple structural form, few components, high modularity, lightweight structure, low operation intensity, portable manual handling, and rapid assembly and construction. It overcomes the deficiencies of traditional emergency support technologies, solves the problem of rapidly constructing an emergency support device when large construction machinery cannot reach mountainous and complex areas, and has significant social benefits.

[0019] (3) The present invention uses a composite material hollow pipe column. Compared with a thin-walled pipe column, when maintaining the same cross-sectional area, the wall thickness can be significantly increased by setting through holes in the pipe wall distributed in a ring pattern, thereby improving the local buckling resistance of the pipe wall and enhancing the structural stability and bearing capacity. Compared with a thick-walled pipe column, when maintaining the wall thickness unchanged, the weight of the module support unit can be reduced through the through holes in the pipe wall, further realizing the lightweight of the structure.

[0020] (4) The present invention uses an interpolation connection component to effectively connect the ends of large-sized composite material pipe columns. The large-sized composite material pipe columns can be made into segmented structures and then designed into an assembled structure, effectively reducing the weight and volume of the module support unit, realizing manual handling and rapid construction, and meeting the functional attributes and usage requirements under special conditions.

[0021] (5) By setting an interpolation connection component at the end of the composite material pipe column, the present invention enables the metal connection component to contact the bridge span main beam and transmit the support force, effectively avoiding the problem of local crushing damage of the composite material pipe wall at the end when the composite material pipe column directly contacts the bridge span main beam. Therefore, the structural bearing capacity of the emergency support device can be significantly improved.

[0022] (6) The manufacturing, assembly, and maintenance of the lightweight assembled emergency support device of the present invention are relatively easy, and the maintenance cost is reduced due to the corrosion resistance of the composite material. Therefore, the total life cycle cost is greatly reduced, and the product can be manufactured after the design is completed, making it easy to promote and apply. Brief Description of the Drawings

[0023] Figure 1 is a schematic structural diagram of an assembled composite material hollow pipe column type emergency support device of the present invention.

[0024] Figure 2 is an exploded view of the structure of an assembled composite material hollow pipe column type emergency support device of the present invention.

[0025] Figure 3 is a schematic structural diagram of a module support unit of an assembled composite material hollow pipe column type emergency support device of the present invention.

[0026] Figure 4 is a schematic connection diagram between module support units of an assembled composite material hollow pipe column type emergency support device of the present invention.

[0027] Figure 5 It is a schematic structural view of the composite material hollow pipe column of an assembled composite material hollow pipe column type emergency support device of the present invention.

[0028] Figure 6 It is a schematic cross-sectional view of the composite material hollow pipe column of an assembled composite material hollow pipe column type emergency support device of the present invention.

[0029] Figure 7 It is a schematic structural view of the insertion connection assembly of an assembled composite material hollow pipe column type emergency support device of the present invention.

[0030] Figure 8 It is an exploded view of the structure of the insertion connection assembly of an assembled composite material hollow pipe column type emergency support device of the present invention.

[0031] Figure 9 It is a schematic connection view of the composite material hollow pipe column and the insertion connection assembly of an assembled composite material hollow pipe column type emergency support device of the present invention.

[0032] Figure 10 It is a schematic structural view of the jacking adjustment base of an assembled composite material hollow pipe column type emergency support device of the present invention.

[0033] Figure 11 It is a schematic use view of Embodiment 3 of an assembled composite material hollow pipe column type emergency support device of the present invention.

[0034] Figure 12 It is a schematic use view of Embodiment 4 of an assembled composite material hollow pipe column type emergency support device of the present invention.

[0035] In the figure: 1. Composite material hollow pipe column, 11. Through hole, 2. Insertion connection assembly, 21. Outer sleeve, 22. Inner lining pipe, 23. Metal rod, 24. End connection disc, 25. Tooth groove structure, 3. Flange, 4. Bolt connection piece, 5. Jacking adjustment base, 51. Screw rod lifting device, 52. Inner tray, 53. Hand rocker, 6. Module support unit, 7. Bridge span main beam, 8. Foundation ground. Specific embodiments

[0036] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention, and cannot be used to limit the protection scope of the present invention.

[0037] In the description of this embodiment, it should be noted that for terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing this embodiment and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to this embodiment.

[0038] It should be noted that the purpose of the present invention is to propose an emergency support device that can repair and unblock the bridge span by adding or replacing when the original pier is damaged by human or natural factors. In terms of structural form, it is different from any form of composite material pier anti-collision buffer device, pier reinforcement device, composite material pipe beam or tie rod, etc.; in terms of force form, it mainly bears axial compression load, different from the composite material pier anti-collision buffer device that bears transverse impact load, the pier reinforcement device that bears radial internal pressure load, the composite material pipe beam that bears bending load, and the composite material tie rod that bears tensile load. Embodiment 1

[0039] This embodiment provides a structure of a prefabricated composite material hollow pipe column type emergency support device, as Figure 1 and Figure 2 shown, including a composite material hollow pipe column 1, an inserted connection component 2, a flange member 3, a bolt connection component 4, and a jacking and adjusting base 5, wherein the inserted connection component 2 can be installed at the end of the composite material hollow pipe column 1.

[0040] In a specific embodiment, the composite material hollow pipe column 1 is prepared from fiber reinforced resin matrix composite material, metal matrix composite material or polymer matrix composite material, or prepared from at least one of fiber reinforced resin matrix composite material, metal matrix composite material or polymer matrix composite material and high-strength metal material. When the composite material hollow pipe column 1 selects fiber reinforced resin matrix composite material, it is prepared by pultrusion molding, compression molding, liquid molding and other methods.

[0041] Among them, a plurality of through holes 11 distributed in a ring are formed in the pipe wall of the composite material hollow pipe column 1; combined with Figure 3 , after the inserted connection component 2 is connected to both ends of the composite material hollow pipe column 1, a module support unit 6 is formed. As Figure 1 and Figure 4 shown, the module support units 6 and with the jacking and adjusting base 5 are all connected into one body by the bolt connection component 4.

[0042] As Figure 5 and Figure 6As shown, the through holes 11 on the wall of the composite hollow pipe column 1 are circular in shape and arranged in a single row or a double row in a circular array. In another specific embodiment, the shape of the through holes 11 can also be rectangular or other existing regular or irregular shapes, and the multiple through holes 11 distributed in the circular array form a multi-row arrangement of two or more rows. A plurality of through holes 11 are provided on the wall of the composite hollow pipe column 1 in this embodiment. Compared with a thin-walled pipe column, it can significantly increase the wall thickness while maintaining the same cross-sectional area, thereby improving the local buckling resistance of the pipe wall and realizing the improvement of structural stability and bearing capacity; compared with a thick-walled pipe column, while maintaining the wall thickness unchanged, it can reduce the weight of the module support unit 6 through the through holes 11 in the pipe wall, further realizing structural lightweighting.

[0043] As Figure 7 and Figure 8 shown, the insertion connection assembly 2 includes an outer sleeve 21, an inner sleeve 22 and an end connection disc 24, and a plurality of metal rods 23 are provided on the end connection disc 24; the size and shape of the metal rods 23 match the through holes 11 in the wall of the composite hollow pipe column 1. The outer sleeve 21, the inner sleeve 22 and the metal rods 23 are integrally connected to the end connection disc 24 at the ends. Among them, both the outer sleeve 21 and the inner sleeve 22 are made of metal. Figure 9 Fig. is a demonstration schematic diagram when the metal rod 23 is inserted into the through hole 11. At this time, the outer sleeve 21 and the inner sleeve 22 are respectively located on the outer side and the inner side of the wall of the composite hollow pipe column 1 and can be fixedly connected to the composite hollow pipe column 1. In a specific embodiment, the outer sleeve 21, the inner sleeve 22 and the metal rods 23 of the insertion connection assembly 2 are combined with the composite hollow pipe column 1 by a cold extrusion process or a colloid bonding method, and the force is transmitted by relying on the friction or shear action of the interface composite material. When the cold extrusion process is adopted, tooth groove structures are provided on the inner wall of the outer sleeve 21 and the outer wall of the inner sleeve 22, and the tooth groove structures include circumferential rectangular teeth, circumferential thread teeth, longitudinal triangular teeth or sharp special-shaped tooth grooves, or other types of tooth groove structures. When the metal rod 23 is inserted into the through hole 11, the end of the inner sleeve 22 of the insertion connection assembly 2 is flush with the end of the composite hollow pipe column 1, the end of the outer sleeve 21 protrudes slightly from the end of the composite hollow pipe column 1, and the metal rod 23 is flush with the inner sleeve 22 and the outer sleeve 21 at the ends.

[0044] The flange member 3 is connected to the side of the end connection disc 24 away from the metal rod 23. In a specific embodiment, the end connection disc 24 and the flange member 3 are welded, integrally formed or manufactured by a cutting process. The flange member 3 is used to be fixedly connected to the flange member 3 on the other end connection disc 24 to assemble adjacent module support units 6.

[0045] CombinedFigure 10 , wherein, the jacking and adjusting base 5 is located at the bottom of the entire emergency support device. The jacking and adjusting base 5 includes a screw rod lifting device 51, an inner tray 52 and a hand crank 53.

[0046] In actual application, the insertion connection component 2 can not only be installed at the end of the composite material pipe column as a connecting piece, but also the metal connecting piece can contact the bridge span main beam and conduct support force transmission. In this way, the problem that the composite material pipe wall is locally crushed and damaged at the end when the composite material pipe column directly contacts the bridge span main beam can be effectively avoided. Therefore, the structural bearing capacity of the emergency support device can be greatly improved.

[0047] During the actual operation process, the composite material hollow pipe column 1, the insertion connection component 2 and the flange 3 can be prefabricated, processed and assembled in the factory to form a single module support unit 6. At the site, a number of module support units 6 are assembled through the bolt connection component 4. Finally, the bottom jacking and adjusting base 5 is used to finely adjust the vertical height of the complete set of emergency support device, so that the emergency support device completely tightens the upper bridge span main beam to realize effective support force transmission.

[0048] Specifically, the module support unit 6 in this embodiment can be quickly assembled, so that the large-size composite material pipe column can be made into a segmented structure, effectively reducing the weight and volume of the module support unit 6. Thus, it can be manually carried and quickly constructed, meeting the functional attributes and usage requirements under special conditions, and making transportation and operation more convenient.

[0049] The working principle of the present invention is as follows: The module support unit 6 composed of the composite material hollow pipe column 1 and the insertion connection component 2 is the core component of the entire emergency support device. Among them, the composite material hollow pipe column 1 is provided with a ring of through holes 11 inside the pipe wall. When the insertion connection component 2 is installed and connected with the composite material hollow pipe column 1, the outer sleeve 21, the inner lining pipe 22 and the metal rod 23 of the insertion connection component 2 are respectively located on the outer wall (outside the pipe wall), the inner wall (inside the pipe wall) and the through hole of the composite material hollow pipe column 1; the ends of the outer sleeve 21, the inner lining pipe 22 and the metal rod 23 are all connected to the end connection disc 24; when the cold extrusion process is used to extrude the insertion connection component 2, the outer sleeve 21 can be made to have a reduced outer diameter, plastic deformation and interface pre-compressive stress, so that the insertion connection component 2 and the composite material hollow pipe column 1 are combined into a firm whole; due to the existence of the interface pre-compressive stress, a large frictional force or shear force can be provided along the axial direction of the composite material hollow pipe column 1, so as to effectively transmit the axial force applied to the end insertion connection component 2. When the upper end of the module support unit 6 is tightly pressed against the lower surface of the bridge span main beam 7 by using the jacking and adjusting base 5, the bridge span main beam can be effectively supported and the passing load can be borne. Embodiment 2

[0050] This embodiment provides a preparation process for the module support unit of the assembled composite material hollow pipe column type emergency support device in Embodiment 1, which includes the following steps: Step 1: Prepare the composite material hollow pipe column 1 by using processes such as pultrusion, compression molding or liquid molding according to the designed configuration and dimensions; Step 2: Prepare and assemble the inner insertion connection component 2 and the flange 3 by using machining processes. The inner insertion connection component 2 can be integrally formed, or the outer sleeve 21, the inner lining pipe 22 and the metal rod 23 are prepared separately and welded into one body with the end connection disc 24 at the end; Step 3: Integrally insert and embed the inner insertion connection component 2 at both ends of the composite material hollow pipe column 1. The ends of the outer sleeve 21, the inner lining pipe 22 and the metal rod 23 of the inner insertion connection component 2 all slightly protrude beyond the ends of the composite material hollow pipe column 1, that is, there is a certain distance between the end of the composite material hollow pipe column 1 and the end connection disc 24; Step 4: Use a tube shrinking machine or a longitudinal extrusion device to perform cold extrusion on the outer wall of the outer sleeve 21 of the inner insertion connection component 2, so that the outer sleeve 21 generates certain plastic deformation and interface pre-compressive stress, so that the outer sleeve 21, the inner lining pipe 22 and the metal rod 23 are combined with the composite material hollow pipe column 1 into a firm whole; When used under working conditions with relatively low bearing capacity requirements, a high-strength colloid can be applied to the surfaces of the outer sleeve 21, the inner lining pipe 22 and the metal rod 23, and the inner insertion connection component 2 is synchronously inserted and embedded into the annular through holes of the composite material hollow pipe column 1, and the firm combination of the composite material hollow pipe column 1 and the inner insertion connection component 2 is realized through the curing of the colloid; Step 5: Connect the flange 3 to the end connection disc 24 of the inner insertion connection component 2 by welding. When in extreme environmental conditions where several pairs of weld connections are not applicable, the flange 3 and the end connection disc 24 can also be prepared by an integral forming process.

[0051] The module support unit of the assembled emergency support device of the present invention can also be prepared in advance in the factory by other methods. All module support units processed in a similar manner within the spirit and principles of the present invention shall be within the protection scope of the present invention.

[0052] Based on the foregoing structural composition, working principle and preparation process of the module support unit, the present invention provides some embodiments of the use method of the assembled composite material hollow pipe column type emergency support device. Embodiment 3

[0053] Based on the assembled composite material hollow pipe column type emergency support device in Embodiment 1 and the preparation process in Embodiment 2, this embodiment provides a single-row and single-layer on-site rapid assembly method for the assembled composite material hollow pipe column type emergency support device, as Figure 11As shown, the following steps are included: Step 1: Use simple tools and convenient materials to level the base ground 8, ensuring that the base ground is level, compacted and strong enough; Step 2: Arrange a corresponding number of lifting and adjusting bases 5 in the transverse direction according to the width and load-bearing capacity of the bridge span main beam 7, and adjust them to the lowest height at the same time; Step 3: Prepare a single module support unit 6, and connect the single module support unit 6 to the lifting and adjusting base 5 using a bolt connector 4; Step 4: appropriately adjust the lifting and adjusting base 5 according to the height of the bridge span main beam 7, so that the upper part of the entire emergency support device after splicing is pressed against the lower surface of the bridge span main beam 7. Example 4

[0054] This embodiment provides a method for quickly assembling a single-row and multi-layer on-site composite hollow pipe column emergency support device, such as Figure 12 The difference from Example 3 is that when the height between the bridge span main beam 7 and the foundation ground 8 is high, due to the length limit of the module support unit 6, it is necessary to vertically splice at least two layers of multiple module support units 6, which includes the following steps: Step 1: Use simple tools and convenient materials to level the base ground 8, ensuring that the base ground is level, compacted and strong enough; Step 2: Arrange a corresponding number of lifting and adjusting bases 5 in the transverse direction according to the width and load-bearing capacity of the bridge span main beam 7, and adjust them to the lowest height at the same time; Step 3: Arrange a number of module support units 6 on the bottom first floor, and use bolt connectors 4 to sequentially connect the module support units 6 at the bottom with the lifting and adjusting base 5; Step 4: Use simple handling equipment to set up the second-layer and above module support units 6, and set bolt connectors 4 between the module support units 6 of adjacent layers; Step 5: appropriately adjust the lifting and adjusting base 5 according to the height of the bridge span main beam 7, so that the entire emergency support device after splicing is completely pressed against the lower surface of the bridge span main beam 7.

[0055] Matters not covered by the present invention are known technologies.

[0056] It should be noted that, in the present invention, unless otherwise clearly specified and limited, the terms "support", "connect", "connect", "install", "form" and the like should be understood in a broad sense. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", or "some examples" etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, configurations, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0058] The above description of the embodiments expounds the basic principles and main features of the present invention. The above is only the preferred embodiment of the present invention and is not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An assembled composite hollow pipe column emergency support device, characterized in that: include: A composite hollow tube column (1) having a plurality of through holes (11) arranged in a ring in the tube wall; An insert connection assembly (2) for connecting to both ends of the composite hollow pipe column (1) to form a module support unit (6); the insert connection assembly (2) comprises an outer sleeve (21), an inner liner (22) and an end connection disc (24), and the end connection disc (24) is provided with a plurality of metal rods (23); when the metal rods (23) are correspondingly inserted into the through holes (11), the outer sleeve (21) and the inner liner (22) are respectively located on the outside and inside of the pipe wall of the composite hollow pipe column (1) and can be fixedly connected to the composite hollow pipe column (1); A flange member (3) connected to a side of the end connection disc (24) away from the metal rod (23), the flange member (3) being used to be fixedly connected to a flange member (3) of another module support unit (6) so as to assemble adjacent module support units (6); The lifting and adjusting base (5) is used to be fixedly connected to the flange member (3) at the bottom of the module support unit (6); by adjusting the height of the lifting and adjusting base (5), the module support unit (6) can be tightened and supported to transmit force.

2. The assembled composite hollow pipe column emergency support device according to claim 1 is characterized in that: The through holes (11) are circular or rectangular in shape; the plurality of through holes (11) distributed in a ring are arranged in a single row or in multiple rows.

3. The assembled composite hollow pipe column emergency support device according to claim 1 is characterized in that: When the metal rod (23) is correspondingly inserted into the through hole (11), the transition section where the composite hollow pipe column (1) and the inserted connection component (2) are combined is reinforced by winding with carbon fiber cloth or glass fiber cloth, or is wrapped with a petal composite pipe.

4. The assembled composite hollow pipe column emergency support device according to claim 1 is characterized in that: The outer sleeve (21), the inner liner (22) and the metal rod (23) are fixedly connected to the composite hollow pipe column (1) by means of colloid bonding or a cold extrusion process. When the cold extrusion process is used for fixed connection, the inner wall of the outer sleeve (21) and the outer wall of the inner liner (22) are provided with a tooth groove structure (25).

5. The assembled composite hollow pipe column emergency support device according to claim 4 is characterized in that: The tooth groove structure (25) comprises annular rectangular teeth, annular threaded teeth, longitudinal triangular teeth or sharp special-shaped tooth grooves.

6. The assembled composite hollow pipe column emergency support device according to claim 1, characterized in that: The end connection disc (24) and the flange member (3) are welded together or integrally formed or manufactured by a cutting forming process.

7. The assembled composite hollow pipe column emergency support device according to claim 1 is characterized in that: The composite hollow tube column (1) is prepared from a fiber-reinforced resin-based composite material, a metal-based composite material or a polymer-based composite material, or is prepared from at least one of the fiber-reinforced resin-based composite material, the metal-based composite material or the polymer-based composite material and a high-strength metal material.

8. The assembled composite hollow pipe column emergency support device according to claim 1, characterized in that: The lifting and adjusting base (5) comprises a screw lifting device (51), an inner tray (52) and a hand crank (53); shaking the hand crank (53) can drive the screw lifting device (51) to adjust the height of the lifting and adjusting base (5).

9. The assembled composite hollow pipe column emergency support device according to claim 8, characterized in that: The lifting and adjusting base (5) and the flange member (3) are fixedly connected via a bolt connection member (4).

10. The assembled composite hollow pipe column emergency support device according to claim 1, characterized in that: The outer sleeve (21) and the inner liner (22) are both metal parts.

Images