CN205443964U - A intersection support piece for heavy steel pipe strutting arrangement of assembled - Google Patents

Abstract

The utility model relates to a bridge construction technical field that is under construction, concretely relates to an intersection support piece for heavy steel pipe strutting arrangement of assembled, including four links, wherein two links are connected respectively in the inboard and the outside that correspond heavy steel pipe, and two other links are connected with the heavy steel pipe strutting arrangement's of assembled first horizontal pole and second horizontal pole respectively, all be connected with the connecting plate on four links of intersection support piece, the support piece that intersects passes through the connecting plate and is connected with heavy steel pipe, first horizontal pole and second horizontal pole, be provided with the through -hole on the connecting plate. In the above -mentioned scheme of this application, support piece connects first horizontal pole, second horizontal pole and corresponding heavy steel pipe through setting up alternately for the atress intercoordination and the relevance of first horizontal pole and second horizontal pole and heavy steel pipe have further improved the heavy steel pipe strutting arrangement's of assembled mechanical properties.

Description

A cross support for an assembled heavy-duty steel pipe support device

technical field

The utility model relates to the technical field of bridge building construction, in particular to a cross support for an assembled heavy-duty steel pipe support device.

Background technique

In the field of bridge construction technology, the jacking construction method is mostly used in the construction of continuous girder bridges and cable-stayed bridges. Specifically, the beam body is poured or assembled segment by segment on the assembly platform, and then vertically pushed with a jack to make the beam body pass through. The temporary sliding bearing surface of each pier top is adjusted and placed in place. The jacking construction is to set up the construction site on the ground behind the abutment, pour or assemble the beam body in sections, install a steel guide beam whose length is the specified ratio of the jacking span in front of the beam body, and then apply force through a horizontal jack. Push the beam forward to the construction site, and repeat these steps to complete the entire beam construction.

In the jacking construction of bridges, for bridges with a wide distance between piers and a large span, due to the limited spanning capacity of the girder body, it is necessary to set temporary piers between permanent piers and abutments. The beam body acts as a temporary support, so that the beam body can be pushed smoothly to the next pier.

During the jacking operation, the temporary pier not only bears the vertical pressure transmitted by the beam body, but also bears a certain horizontal force exerted by the beam body during the jacking process, which requires that the temporary pier must have sufficient strength , stiffness and stability.

The current temporary piers usually have two structures, one is a temporary pier with a concrete structure obtained by pouring, and the other is a truss type temporary pier obtained by assembling rods. For the temporary pier of concrete structure, it has good structural strength, but its construction process is similar to that of the permanent pier. The whole construction process has many procedures, which not only requires a lot of man-hours, but also greatly increases the construction cost. Finally, in the process of dismantling the temporary pier, a large amount of manpower and material resources are also required, which greatly increases the construction cost; for the truss type temporary pier, its structure is simple, easy to install and easy to dismantle, which not only saves the cost, but also shortens the construction time. The construction period is shortened, and the labor cost is reduced. However, the structural strength of this truss-type temporary pier is relatively weak in terms of its vertical support capacity and horizontal support capacity, so now this truss-type temporary pier is used; and , this kind of truss-type temporary piers, because some components are fixedly connected by welding or other forms, so when they are removed, they need to be removed in a destructive way. After the removal, these Components can no longer be reused, so there is also a certain waste, resulting in an increase in construction costs.

Therefore, there is an urgent need for a structure that not only has sufficient strength, rigidity and stability to ensure reliable support for the beam body, but also can be easily installed and removed, reused, and reduce construction costs.

Contents of the invention

The purpose of this utility model is to: aim at the above-mentioned problems existing in the construction of temporary piers in the current bridge building construction, to provide a bridge with sufficient strength, rigidity and stability, to ensure reliable support for the beam body, and to facilitate installation and installation. The structure can be disassembled and reused to reduce construction costs.

An assembled heavy-duty steel pipe support device, including several support segments spliced in sequence in the vertical direction, the support segments include several vertically arranged heavy-duty steel pipes, the number of the heavy-duty steel pipes ensures that the support device The heavy-duty steel pipes are separated by a suitable distance so that the support device has sufficient stability in the horizontal direction. There are connecting rods connected between the heavy-duty steel pipes. Between the support segments, the There are detachable connections between the connecting rod and the heavy steel pipe, and between the connecting rod and the connecting rod.

In the above solution of the present application, the heavy-duty steel pipe is a steel pipe with a thickness greater than or equal to 10mm and an inner diameter greater than or equal to 500mm, and the material of the steel pipe is high-strength, high-rigidity steel, such as Q345B steel.

The support device is spliced by support segments, and the connection between the support segments, between the connecting rod and the heavy-duty steel pipe, and between the connecting rod and the connecting rod is detachable. First, it reduces the assembly of the supporting device. Difficulty facilitates the installation and disassembly of the support device of the present application, thereby enabling the support device of the present application to be reused and reducing construction costs; at the same time, the heavy steel pipes are separated by a suitable distance, and the distance between the heavy steel pipes is guaranteed to be in the horizontal direction It has sufficient stability, and the heavy-duty steel pipes are connected by connecting rods, so the supporting device of the present application has good reliability both in the vertical direction and in the horizontal direction; on the other hand, the supporting device of the present application The load-bearing member of the device in the vertical direction is a heavy-duty steel pipe. In actual production, the heavy-duty steel pipe and each connecting rod can be set as a universal member, so that the support device of the present application has good versatility and replaceability. It is further convenient to manufacture and use, and reduces installation difficulty and construction cost.

Preferably, the two ends of the heavy steel pipe are respectively provided with connecting end plates, the connecting end plates are ring-shaped and surround the outside of the heavy steel pipe, and there is a gap between the connecting end plate and the outer wall of the heavy steel pipe. Reinforcing ribs are connected, and the detachable connection of two adjacent support segments is realized through the cooperation of the connecting end plates.

Preferably, the connecting end plate is perpendicular to the central axis of the heavy-duty steel pipe, and the connecting end plate has a certain width, so that the support segment has reliable stability in a direction perpendicular to the central axis of the heavy-duty steel pipe.

In the above scheme of the present application, connecting end plates are provided at both ends of the heavy-duty steel pipe, and the two support segments are detachably connected through the cooperation of the connecting end plates, which firstly facilitates the connection between two adjacent segments and disassembly; and more importantly, the supporting device of the present application, its supporting force in the vertical direction can be easily guaranteed, but when it is used in an environment with a large horizontal force, such as the top of a bridge Pushing construction, in the process of pushing construction, it will receive a great thrust in the direction perpendicular to the central axis of the heavy-duty steel pipe. In order to ensure that the support device has good stability in the direction perpendicular to the central axis of the heavy-duty steel pipe, you can Increase the diameter of heavy-duty steel pipes or increase the spacing of heavy-duty steel pipes in the direction of force, but these two methods greatly increase the volume of the support device of this application, resulting in increased construction difficulty and cost. Therefore, in this application, In the case that it is inconvenient to maintain the diameter and spacing of heavy steel pipes, connecting end plates are arranged at both ends of heavy steel pipes, which not only play the role of connecting support segments, but also increase the support device in the direction perpendicular to the central axis of heavy steel pipes. stability without significantly increasing the size and cost of the supporting device.

Preferably, each support section includes four heavy-duty steel pipes with the same height, and the four heavy-duty steel pipes cooperate with each connecting rod to form a square frame.

In the above solution of the present application, the support segments are set as square frames, and after the butt joint of each support segment is completed, not only the spatial structure is made orderly, but also it has good stability.

Preferably, the support segment is a rectangular parallelepiped frame structure.

In the above scheme of the present application, the support segment is a cuboid frame structure, that is to say the support segment of the present application has a length direction, a width direction and a height direction, each support segment is spliced one by one in the height direction, and the length direction Set it to be consistent with the direction of the force, so that while ensuring the use of less material, it can also ensure good stability in the direction of the force.

Preferably, the connecting rod includes a cross bar, and the cross bar is perpendicular to the central axis of the heavy steel pipe.

In the above scheme of the present application, the connecting rods connect each heavy-duty steel pipe into an integral structural system. First, it ensures the integrity of the supporting device of the present application, so that each component supports and coordinates with each other and has good mechanical strength. performance, and the cross bar is perpendicular to the central axis of the heavy steel pipe, thereby ensuring that the support device of the present application has good support strength and stability in the direction perpendicular to the central axis of the heavy steel pipe.

Preferably, for the two heavy-duty steel pipes in the same length plane of the support segment, a cross bar is connected between the inner side and the inner side of the upper end, and a cross bar is also connected between the outer side and the outer side.

Preferably, for the two heavy-duty steel pipes in the same length plane of the support segment, the cross bar connected between the inner side and the inner side of the upper end is the first cross bar, and the cross bar connected between the outer side and the outer side is the second cross bar, Adjacent first crossbars and second crossbars form a crossbar group, and cross braces are also arranged between the first crossbars and the second crossbars of each crossbar assembly.

In the above scheme of the present application, a quadrilateral structural system is formed by the first cross bar, the second cross bar and the two opposite heavy-duty steel pipes, that is, there are two quadrilateral structural systems at the upper end of a support segment, The quadrangular structural system is perpendicular to the central axis of the heavy steel pipe, and its length direction is consistent with the length direction of the support segment, thus further improving the support strength and structural stability of the support segment in the length direction of the application.

Preferably, there is at least one cross brace.

Preferably, the cross brace includes four connection ends, two of which are respectively connected to the inner side and the outer side of the corresponding heavy steel pipe, and the other two connection ends are respectively connected to the first cross bar and the second cross bar.

In the above solution of the present application, by setting cross supports to connect the first cross bar, the second cross bar and the corresponding heavy steel pipes, the forces of the first cross bar, the second cross bar and the heavy steel pipes are coordinated and correlated with each other, The mechanical properties of the supporting device of the present application are further improved.

Preferably, connecting plates are connected to the four connecting ends of the cross support, and the cross support is connected to the heavy steel pipe, the first cross bar and the second cross bar through the connection plates.

Preferably, through holes are provided on the connecting plate.

In the above solution, the four connecting ends of the cross support are provided with connecting plates, which facilitates the connection and disassembly of the cross support and the heavy steel pipe, the first cross bar and the second cross bar.

Preferably, the cross support is a split structure, including a first support rod and a second support rod arranged crosswise.

In the above solution, the cross support is set as a split structure, which facilitates the adjustment of the positions of the first support rod and the second support rod during installation, and the first support rod and the second support rod are independent of each other, so that Both the first support rod and the second support rod are only subjected to the force exerted by their respective ends, thereby having a good axial support effect, ensuring the stability of the structure between the first cross bar and the second cross bar, and further guaranteeing the application Mechanical properties of the braced segment.

Preferably, the first support rod and the second support rod intersect in an X shape.

In the above solution of the present application, the cross braces are arranged in an X shape, that is to say, in the width direction of the support segment, the projections of the ends of the cross braces coincide, thereby ensuring that the first crossbar and the second crossbar The unification of force, as well as the unification of the force of the first support rod and the second support rod, ensure the coordination of the force of the internal structure of the support segment of the application, and further improve the reliability of the support device of the application.

Preferably, the first support rod and the second support rod are angle steel.

The first support bar and the second support bar are set as angle steel. First, the angle steel has two sides to facilitate the connection between the first support bar and the second support bar and the connecting plate. At the same time, the angle steel is a standard part, which is convenient for the second support bar. The manufacturing of the first support rod and the second support rod reduces the manufacturing cost.

Preferably, the outer wall of the first support rod is in contact with the outer wall of the second support rod.

In the above solution, the outer wall of the first support rod is in contact with the outer wall of the second support rod, so as to ensure that the connection position of the end of the first support rod and the connection position of the end of the second support rod are in the width direction of the support segment The coincidence on the top, and then try to ensure the consistency of the force of the first support bar and the second support bar, and the consistency of the force of the first cross bar and the second cross bar, so as to improve the reliability of the support device of the present application.

Preferably, two cross braces are arranged in one crossbar group, and each cross brace corresponds to a heavy-duty steel pipe.

Preferably, for two cross braces in the same cross brace assembly, the first cross brace of one cross brace is parallel to the second cross brace of the other cross brace.

In the above solution of the present application, the structural strength of the support segment in the direction perpendicular to the central axis of the heavy-duty steel pipe is further improved by arranging two cross supports, and the reliability of the support device of the present application is further improved.

Preferably, the first support rod and the second support rod are non-universal components, which are produced according to the size requirements of on-site assembly.

In the above scheme of the present application, the first support rod and the second support rod are non-universal components, that is to say, the assembled heavy-duty steel pipe support device of the present application adopts a combination of universal components and non-universal components, and the universal components adopt factory processing, so that the processing quality of the universal component can be well guaranteed, and the structure and size of the universal component of various specifications and models are uniform, and have good interchangeability; Due to the existence of errors, the size and position of each component will inevitably be adjusted. Therefore, in this application, some components are used as non-universal components. According to the actual size between the components, cutting materials to make non-universal components, first of all, it facilitates the assembly of the support device and avoids the waste of components. At the same time, because some components are non-universal components, it also improves the support of the application. Adjustability, thereby increasing the scope of application of the supporting device of the present application; on the other hand, because in the supporting device of the present application, during actual installation, if the shape or size of a certain component cannot be well adapted to the installation position, then After the installation is completed, there will inevitably be tension, compression or torsion internal stress inside the component, resulting in a reduction in the fatigue resistance of the support device, as well as a reduction in support strength and stability. Therefore, in the supporting device of the present application, some components are made on-site as non-universal components. During the installation process, the existence of internal stress inside the components is avoided, thereby ensuring that the supporting device of the present application has good mechanical properties and reliability. and has good stability.

Preferably, the upper ends of the two heavy-duty steel pipes in the width direction of the same support segment are radially connected with cross bars.

In the above scheme of the present application, each heavy-duty steel pipe is coordinated to form a frame structure through the coordinated connection of the horizontal bars in the length direction and width direction of the support segment, which further improves the structural strength of the support device of the present application and the coordination between the various components The property is that the supporting device of the present application has better supporting strength and stability.

As a preference, among the two heavy-duty steel pipes in the same length plane of the support section, two diagonal braces are connected to one upper end, and the other end of one diagonal brace is connected to the other end of the heavy-duty steel pipe in the plane. The middle part is connected, and another diagonal brace is connected with one of the diagonal braces of the adjacent support segment in the middle of the same heavy-duty steel pipe.

In the above solution of the present application, by setting up diagonal braces, one of which is connected to the middle of another heavy-duty steel pipe in the support segment, the connection strength between the heavy-duty steel pipes is further improved, and the reliability of the support device of the present application is improved and stability, at the same time, another diagonal brace is connected to the adjacent support segment, so that the connection strength between the two adjacent support segments is further enhanced.

Preferably, the connection of the diagonal braces of each support segment in the same length plane is in a wave shape.

In the above scheme of the present application, in the length plane of the support segment, the connection of the diagonal braces of each support segment is in a wave shape. When the support device is subjected to pressure along the central axis of the heavy steel pipe, the The mutual transmission of the force of the present application further improves the unity of the force of the support device structure of the present application, and further improves the reliability and stability of the support device of the present application.

Preferably, the diagonal bracing rod includes a rod body, two ends of the rod body are respectively connected with a diagonal bracing plate, and a plurality of through holes are arranged on the diagonal bracing plate.

In the above-mentioned solution of the present application, diagonal bracing plates are arranged at both ends of the rod body, and the detachable connection with various heavy steel pipes is realized through the through holes on the rod body, so as to facilitate the installation and disassembly of the diagonal bracing rods.

Preferably, the rod body and the brace plate are welded.

In the actual production process, the brace plate is welded on the rod body to form an integrated structure, which reduces the number of parts of the support device of the present application, and further facilitates the installation and disassembly of the support device of the present application.

Preferably, both ends of the rod body are respectively provided with grooves, the width of the grooves matches the width of the slanting brace, and a part of the slanting brace is inserted into the groove.

In the above solution, grooves are provided at both ends of the rod body, and a part of the brace is inserted into the groove to ensure the connection strength between the rod body and the brace and improve the reliability of the support device of the present application.

Preferably, the groove is arranged along the centerline axis of the rod body.

In the above scheme, the groove is set along the centerline axis of the rod body. When the diagonal brace is stressed, the diagonal brace can transmit the force to the rod along the plane of the diagonal brace, avoiding the generation of bending moment, and then ensuring that the diagonal brace Reliability of connections with heavy steel pipes.

Preferably, the rod body of the diagonal brace is cylindrical.

Preferably, a chamfer is provided at the tip of the slanting brace.

In the above scheme, chamfering is provided at the tip of the slanting brace, first of all, to avoid scratching the operator during installation and disassembly, and at the same time, due to the setting of the chamfer, without reducing the connection strength of the slanting brace, The size of the brace plate is also reduced to avoid interference with the installation of other components.

Preferably, the through-holes on the slant brace are arranged in rows, and each row of through-holes is along the central axis of the rod body.

There are multiple through holes on the slant brace, and they are arranged in rows along the central axis of the rod body to ensure the connection strength of the slant brace and ensure the uniformity of force on each part of the slant brace, further improving the support device of this application. reliability.

Preferably, the support segment also includes several rod connection seats, the rod connection seats are arranged on the heavy-duty steel pipes corresponding to the cross bars, and the cross bars are connected to the respective corresponding bar connection seats , to achieve the connection of heavy steel pipes.

In the above-mentioned scheme of the present application, by setting the bar connection seat to connect the cross bar, firstly, the installation and disassembly of the cross bar is facilitated; at the same time, it is avoided that the cross bar is directly connected to the heavy steel pipe, which will damage the heavy steel pipe and cause the mechanical properties of the heavy steel pipe to be damaged. Therefore, the reliability and stability of the supporting device of the present application are also guaranteed.

Preferably, the rod connection seat includes a first seat plate and a second seat plate, and the first seat plate and the second seat plate are respectively fixedly connected to the heavy steel pipe.

In the above solution of the present application, the first seat plate and the second seat plate are fixedly connected to the heavy-duty steel pipe respectively, so as to ensure the reliability of the connection between the rod connecting seat and the heavy-duty steel pipe.

Preferably, the first seat plate and the second seat plate are spaced apart along the heavy steel pipe.

The first seat plate and the second seat plate are arranged separately, which further increases the stability of the connection between the bar connecting seat and the heavy steel pipe, and also increases the connection position of the bar connecting seat to facilitate the connection to the cross bar.

Preferably, the first seat plate and the second seat plate are ring-shaped and surround the outer wall of the heavy-duty steel pipe.

In the above-mentioned solution of the present application, the first seat plate and the second seat plate are arranged in a ring shape, which increases the connection between the first seat plate and the second seat plate and the heavy-duty steel pipe, and further improves the The strength of the connection with the heavy-duty steel pipe, and surrounding the outer wall of the heavy-duty steel pipe, even if the connection between the first seat plate or the second seat plate and the heavy-duty steel pipe is not tight, it will still not be separated from the heavy-duty steel pipe, further The reliability of the supporting device of the present application is improved.

Preferably, the first seat plate and the second seat plate are perpendicular to the central axis of the heavy steel pipe.

In the above scheme of the present application, the first seat plate and the second seat plate are perpendicular to the central axis of the heavy-duty steel pipe, so that the first seat plate, the second seat plate and the heavy-duty steel pipe exert positive pressure to avoid the generation of bending moment , further supporting the reliability of the device.

Preferably, reinforcing ribs are provided between the first seat plate and/or the second seat plate and the outer wall of the heavy-duty steel pipe.

The reliability of the connection between the first seat plate and/or the second seat plate and the heavy-duty steel pipe is further ensured by arranging the reinforcing ribs.

Preferably, the first seat plate is spliced by several arc-shaped first seat plate segments.

Preferably, the second seat plate is spliced by several arc-shaped second seat plate segments.

The first seat plate and the second seat plate are arranged to be spliced by several arc-shaped grounds, which facilitates the connection between the first seat plate and the second seat plate and the heavy-duty steel pipe, and simplifies the installation steps of the supporting device of this application.

Preferably, the first seat plate and the second seat plate are provided with flanges correspondingly, and an adapter member is provided on the flange, and the cross bar of the support device is detachably connected to the adapter member. .

In the above-mentioned scheme of the present application, setting the transition member on the first seat plate and the second seat plate first plays a role in strengthening the connection strength between the first seat plate and the second seat plate. In the above structure, the cross bar is connected to the transfer member, the transfer member is set on the bar connecting seat, and the bar connecting seat is set on the heavy steel pipe, so that the connection of the cross bar to the heavy steel pipe is realized. Through the combination of these components , while making the connection of the cross bar stable and reliable, it also facilitates the installation and disassembly of the cross bar.

Preferably, the transition member includes a base, the base is connected between the first seat plate and the second seat plate, and a conversion seat is provided on the base, and the conversion seat includes a The crossbar corresponds to the conversion plate.

In the above solution of the present application, by setting the conversion plate, the conversion plate corresponds to the cross bar, which further facilitates the connection of the cross bar.

Preferably, the conversion board includes a first conversion board and a second conversion board perpendicular to the first conversion board, and the first conversion board and the second conversion board are respectively connected to corresponding cross bars.

In the above solution, the first conversion plate and the second conversion plate are perpendicular, so that the crossbars in the two planes can be conveniently connected, which further facilitates the installation and disassembly of the supporting device of the present application.

Preferably, a horizontal web is also provided on the heavy-duty steel pipe corresponding to the base, the horizontal web is arranged between the first seat plate and the second seat plate, one side of the horizontal web is connected to the heavy-duty The steel pipe is fixedly connected, and the other side is fixedly connected with the base.

By setting on the horizontal web, the reliability of the connection between the base and the heavy steel pipe is guaranteed.

Preferably, the horizontal web is perpendicular to the central axis of the heavy steel pipe.

In the above solution of the present application, the horizontal web is perpendicular to the heavy steel pipe, so that the force exerted by the horizontal web on the heavy steel pipe is a positive pressure, further ensuring the reliability of the connection between the horizontal web and the heavy steel pipe.

As a preference, the heavy-duty steel pipe corresponding to the base is also provided with a vertical web, the upper side of the vertical web is fixedly connected with the first seat plate, and the lower side of the vertical web is connected with the first seat plate. The second seat plate is fixedly connected, the inner side of the vertical web is fixedly connected with the heavy steel pipe, and the outer side of the vertical web is fixedly connected with the base.

In the above solution, the reliability of the connection between the base and the heavy steel pipe is further ensured by setting the vertical web.

Preferably, the base is in the shape of a plane plate, and is in the same plane as the central axis of the heavy steel pipe.

The base is set in a flat plate shape, and is in the same plane as the central axis of the heavy-duty steel pipe, so that when the supporting device is supported, the base exerts a positive pressure on the heavy-duty steel pipe to ensure the reliability and reliability of the heavy-duty steel pipe for the base support. stability.

Preferably, the conversion seat is formed by splicing two angle steels, wherein one side of one angle steel is connected to one side of the other angle steel to form a T-shape.

In the above-mentioned solution of the present application, the conversion seat is spliced by two angle steels, first of all, the conversion seat is easy to process and manufacture, and the first conversion plate and the second conversion plate can be directly arranged on each side of the angle steel, directly ensuring The control of the vertical position between the first conversion plate and the second conversion plate is achieved.

Preferably, in the assembled heavy-duty steel pipe support device of the present application, the diagonal braces, cross braces, rod connecting seats and transition members are non-universal members, and the heavy-duty steel pipes and cross bars are universal members.

That is to say, the assembled heavy-duty steel pipe support device of the present application is composed of universal components and non-universal components. On the premise of ensuring the support reliability of the support device, it is easy to manufacture, easy to assemble and disassemble, and can be used repeatedly. Reduce use cost and construction difficulty.

The application also discloses a construction method for a temporary pier, which includes the following steps in turn:

A: Pour the foundation for the supporting assembly type heavy-duty steel pipe support device at the design position;

B: According to the design requirements, make each component of the assembled heavy-duty steel pipe support device;

C: Assemble the assembled heavy-duty steel pipe support device on the basis,

The height of the foundation ensures that the assembled heavy-duty steel pipe supporting device has sufficient supporting strength, rigidity and stability in the vertical direction and the horizontal direction.

In the above scheme of the present application, the height of the temporary pier is jointly determined by the height of the foundation and the height of the assembled heavy-duty steel pipe support device. The higher the height, the worse the stability, and the support strength in the vertical or horizontal direction will decrease. As for the foundation, because it is a reinforced concrete structure, it has better strength than the support device, but because it cannot Reuse, and pouring in the early stage and demolition in the later stage not only need to invest a lot of labor and materials, but also require a long construction period, which has a high cost of use, and at the same time, its construction is also difficult. Therefore, in this application, the use of The height of the foundation is coordinated with the height of the assembled heavy-duty steel pipe support device. On the premise of ensuring that the temporary pier has reliable support strength, it also reduces the construction difficulty of the temporary pier, shortens the construction period, and saves construction cost and construction period.

Preferably, the step B is to manufacture the universal component of the assembled heavy-duty steel pipe support device in the factory, and then transport it to the construction site.

In the above solution of the present application, the universal component is produced in the factory. Since the factory has complete tools and a high-quality site, it can ensure that the universal component has a reliable manufacturing quality.

Preferably, in the step C, the universal components of the support segment are assembled from bottom to top, and then the non-universal components of the support device are made according to the actual size between the universal components, and then the non-universal components are installed.

In the above scheme, the universal component is assembled first, and then the non-universal component is manufactured according to the actual structural size. First, it ensures the convenience of the assembly of the supporting device, and also reduces the precision requirement of the universal component manufacturing and reduces the manufacturing cost. cost, and, after assembly, can effectively avoid the internal stress inside the non-universal components and universal components, further ensuring the reliability of the support device of the present application.

As a preference, in the step C, on the same basis, at least two assembled heavy-duty steel pipe support devices of the same height are arranged along the width direction of the bridge, and at least two assembled heavy-duty steel pipe support devices are spaced apart. A horizontal link is connected between two adjacent assembled heavy-duty steel pipe support devices.

In the above scheme of the present application, a plurality of assembled heavy-duty steel pipe support devices are used, and the crossbeams are connected between adjacent assembled heavy-duty steel pipe support devices. First, the support strength of the temporary pier is further ensured. The support strength and stability of the device are increased, and then, under the premise of ensuring reliable support, the height of the assembled heavy-duty steel pipe support device can be appropriately increased, and the height of the foundation can be reduced, which further reduces the construction cost and construction difficulty; On the one hand, by adopting a plurality of separated and installed heavy-duty steel pipe support devices, other larger structures can be installed on the upper end of the temporary pier, such as a pulley that matches the bridge push, and a larger pulley is used to ensure that the bridge The push is carried out smoothly. Moreover, the larger block is easy to lubricate and has less internal friction. Therefore, during the push of the bridge, the thrust on the temporary pier is also small, thus reducing the impact on the foundation and the assembled heavy duty. The strength requirements of the steel pipe support device can further reduce the construction cost of the temporary pier on the basis of further improving the reliability of the temporary pier of the present application.

Preferably, in the step C, the length direction of the support segment of the assembled heavy-duty steel pipe support device is consistent with the length direction of the bridge.

In this field, when the bridge is being pushed, the assembled heavy-duty steel pipe support device is pushed along the length direction of the bridge. Therefore, in this application, the length direction of the support segment is set to be consistent with the length direction of the bridge. Furthermore, the stability of the assembled heavy-duty steel pipe support device along the length direction of the bridge is improved, and the reliability of the temporary pier support is further ensured.

Preferably, in the step C, there are several cross-links, and at least one cross-link is arranged on the upper end of the assembled heavy-duty steel pipe support device.

In the above scheme of the present application, there are several cross-links, and at least one cross-link is arranged on the upper end of the assembled heavy-duty steel pipe support device. While improving the support strength of the temporary pier, the area of the upper end of the temporary pier is further increased, which is more convenient. The installation and arrangement of other devices on the upper end of the temporary pier further facilitates the bridging construction.

In summary, due to the adoption of the above technical solution, the beneficial effects of the assembled heavy-duty steel pipe support device are:

1. The supporting device is spliced by supporting segments, and there are detachable connections between the supporting segments, between the connecting rod and the heavy steel pipe, and between the connecting rod and the connecting rod. First, the supporting device is lowered. The difficulty of assembling facilitates the installation and disassembly of the support device of the present application, thereby enabling the support device of the present application to be reused and reducing construction costs;

2. There is a suitable distance between the heavy steel pipes, the distance between the heavy steel pipes ensures sufficient stability in the horizontal direction, and the heavy steel pipes are connected by connecting rods, so whether the supporting device of the present application is in Good reliability both vertically and horizontally;

3. For the supporting device of the present application, its load-bearing member in the vertical direction is a heavy-duty steel pipe. In actual production, the heavy-duty steel pipe and each connecting rod can be set as a universal member, so that the supporting device of the present application has good Versatility and replaceability, further facilitate manufacture and use, reduce installation difficulty and construction cost;

4. By setting cross supports to connect the first crossbar, the second crossbar and the corresponding heavy-duty steel pipes, the forces of the first crossbar, the second crossbar and the heavy-duty steel pipes are coordinated and correlated with each other, further improving the assembled heavy-duty Mechanical properties of steel tube support devices.

The beneficial effects of the application's temporary pier construction method are:

The height of the foundation is coordinated with the height of the assembled heavy-duty steel pipe support device. On the premise of ensuring the reliable support strength of the temporary pier, it also reduces the construction difficulty of the temporary pier, shortens the construction period, and saves construction cost and construction period.

Description of drawings

Fig. 1 is the structural representation of the assembled heavy-duty steel pipe supporting device;

Figure 2 is a schematic diagram of the local structure at the connection end plate of the assembled heavy-duty steel pipe support device;

Figure 3 is a schematic diagram of the local structure at the cross support of the assembled heavy-duty steel pipe support device;

Fig. 4 is the structural representation of diagonal strut;

Fig. 5 is a structural schematic diagram of cross support member connection;

Figure 6 is a structural schematic diagram of the arrangement of the assembled heavy-duty steel pipe support device in the construction of the bridge;

Fig. 7 is a structural schematic diagram of an assembled heavy-duty steel pipe support device for erecting a temporary pier;

Fig. 8 is a schematic diagram of the structure of the assembled heavy-duty steel pipe support device assembled by the support segments,

Marks in the figure: 1-supporting device, 2-supporting segment, 3-heavy steel pipe, 4-connecting end plate, 5-reinforcing rib, 6-cross bar, 7-cross support, 71-first support bar, 72 -Second support bar, 8-connecting plate, 9-diagonal strut, 10-rod body, 11-diagonal bracing plate, 12-rod connecting seat, 13-first seat plate, 14-second seat plate, 15- Flange, 16-transfer member, 17-base, 18-conversion seat, 19-conversion plate, 20-horizontal web, 21-vertical web, 22-foundation, 23-cross connection, A-support section The length direction of the segment, B- the width direction of the bracing segment.

detailed description

Below in conjunction with accompanying drawing, the utility model is described in detail.

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

Embodiment 1: As shown in Figure 1-8,

Embodiment 1: As shown in Figure 1-8,

An assembled heavy-duty steel pipe support device, including several support segments 2 spliced in sequence in the vertical direction, the support segments 2 include several vertically arranged heavy-duty steel pipes 3, the number of the heavy-duty steel pipes 3 ensures that the support device 1 has sufficient support strength in the vertical direction, and the heavy-duty steel pipes 3 are separated by a suitable distance so that the support device 1 has sufficient stability in the horizontal direction, and connecting rods are connected between the heavy-duty steel pipes 3, so There are detachable connections between the support segments 2, between the connecting rods and the heavy steel pipe 3, and between the connecting rods and the connecting rods, and the two ends of the heavy steel pipe 3 are respectively provided with Connecting end plate 4, the connecting end plate 4 is ring-shaped, surrounding the outside of the heavy steel pipe 3, there is also a reinforcing rib 5 connected between the connecting end plate 4 and the outer wall of the heavy steel pipe 3, adjacent The two support segments 2 are detachably connected through the cooperation of the connecting end plate 4, the connecting end plate 4 is perpendicular to the central axis of the heavy steel pipe 3, and the connecting end plate 4 has a certain width, so that The support segment 2 has reliable stability in the direction perpendicular to the central axis of the heavy steel pipe 3 .

In the above scheme of this embodiment, the support device 1 is spliced by the support segments 2, between the support segments 2, between the connecting rod and the heavy steel pipe 3, and between the connecting rod and the connecting rod. The detachable connection first reduces the difficulty of assembling the support device 1, facilitates the installation and disassembly of the support device 1 of this embodiment, and then makes the support device 1 of this embodiment reusable, reducing construction costs; at the same time, the heavy-duty steel pipe 3 are separated by a suitable distance, the distance between the heavy steel pipes 3 ensures sufficient stability in the horizontal direction, and the heavy steel pipes 3 are connected by connecting rods, so the supporting device 1 of this embodiment is either It has good reliability both in the vertical direction and in the horizontal direction; on the other hand, the supporting device 1 of this embodiment, its load-bearing member in the vertical direction is a heavy-duty steel pipe 3, and in actual production, the heavy-duty steel pipe can be 3 and each connecting rod is set as a universal component, so that the supporting device 1 of this embodiment has good versatility and replaceability, further facilitates manufacture and use, and reduces installation difficulty and construction cost.

In the above scheme of this embodiment, connecting end plates 4 are provided at both ends of the heavy-duty steel pipe 3, and the two support segments 2 are detachably connected through the cooperation of the connecting end plates 4. The connection and disassembly between the segments; and more importantly, the support device 1 of this embodiment, its support force in the vertical direction can be easily guaranteed, but when it is applied to a large horizontal force environment, such as the jacking construction of a bridge, during the jacking construction process, it will receive a huge thrust in the direction perpendicular to the central axis of the heavy steel pipe 3, in order to ensure that the support device 1 is perpendicular to the central axis of the heavy steel pipe 3 It has good stability in the direction of the steel pipe 3, and can increase the diameter of the heavy steel pipe 3 or increase the spacing of the heavy steel pipe 3 in the direction of force, but these two methods greatly increase the volume of the support device 1 of this embodiment, resulting in The difficulty of construction and the increase of cost, so, in this embodiment, in the case of the inconvenience of maintaining the diameter and spacing of the heavy-duty steel pipe 3, connecting end plates 4 are arranged at both ends of the heavy-duty steel pipe 3 to play the role of connecting the support segment 2 At the same time, the stability of the supporting device 1 in the direction perpendicular to the central axis of the heavy steel pipe 3 is also increased without significantly increasing the volume and cost of the supporting device 1 .

Embodiment 2: As shown in Figure 1-8,

As for the assembled heavy-duty steel pipe support device described in Example 1, each support section 2 includes four heavy-duty steel pipes 3 of the same height, and the four heavy-duty steel pipes 3 cooperate with each connecting rod to form a square frame, and the support sections 2 is a rectangular parallelepiped frame structure, the connecting rod includes a cross bar 6, the cross bar 6 is perpendicular to the central axis of the heavy-duty steel pipe 3, and the two heavy-duty steel pipes 3 in the same length plane of the support segment 2, A cross bar 6 is connected between the inner side and the inner side of the upper end, and a cross bar 6 is also connected between the outer side and the outer side. The two heavy-duty steel pipes 3 in the same length plane of the support segment 2 are connected between the inner side and the inner side of the upper end. The cross bar 6 is the first cross bar 6, the cross bar 6 connected between the outside and the outside is the second cross bar 6, the adjacent first cross bar 6 and the second cross bar 6 form a cross bar group, each A cross support 7 is also provided between the first cross bar 6 and the second cross bar 6 of the cross bar assembly, and the cross support 7 includes four connecting ends, two of which are respectively connected to the corresponding heavy steel pipes 3 The inner side and the outer side of the other two connecting ends are respectively connected with the first crossbar 6 and the second crossbar 6, and the four connecting ends of the cross brace 7 are connected with connecting plates 8, and the cross brace 7 The connecting plate 8 is connected with the heavy steel pipe 3 , the first cross bar 6 and the second cross bar 6 .

In the above scheme of this embodiment, the support segment 2 is set as a square frame. After the docking of each support segment 2 is completed, not only the spatial structure is neat, but also has good stability; the support segment 2 is a cuboid Frame structure, that is to say, the support segment 2 of this embodiment has a length direction A, a width direction B and a height direction, each support segment 2 is spliced one by one in the height direction, and the length direction A is set to be consistent with the force direction In this way, under the condition of ensuring the use of less materials, it can also ensure good stability in the direction of force; the connecting rods connect each heavy-duty steel pipe 3 into a whole structural system, first of all, it ensures the stability of this embodiment. The integrity of the support device 1 enables the various components to support and coordinate with each other, and has good mechanical properties, and the cross bar 6 is perpendicular to the central axis of the heavy steel pipe 3, thereby ensuring that it is perpendicular to the central axis of the heavy steel pipe 3 In the direction, the support device 1 of this embodiment has good support strength and stability; through the first cross bar 6, the second cross bar 6 and the two opposite heavy steel pipes 3, it forms a quadrilateral structural system, that is , there are two quadrilateral structural systems at the upper end of a support segment 2, the quadrilateral structural system is perpendicular to the central axis of the heavy-duty steel pipe 3, and its length direction A is consistent with the length direction A of the support segment 2, so further The support strength and structural stability of the support segment 2 in the length direction A of this embodiment are improved; the first cross bar 6, the second cross bar 6 and the corresponding heavy steel pipe 3 are connected by setting the cross support 7, so that the first The forces of the first cross bar 6 and the second cross bar 6 and the heavy steel pipe 3 are coordinated and related to each other, which further improves the mechanical performance of the support device 1 of this embodiment; the four connecting ends of the cross support 7 are provided with connecting plates 8 , to facilitate the connection and disassembly of the cross support 7 and the heavy steel pipe 3 , the first cross bar 6 and the second cross bar 6 .

Embodiment 3: As shown in Figure 1-8,

As for the assembled heavy-duty steel pipe support device described in Embodiment 2, the cross support 7 is a split structure, including a first support rod 71 and a second support rod 72 arranged crosswise, the first support rod 71 and the second support rod 72 The second support bar 72 crosses in an X shape, the first support bar 71 and the second support bar 72 are angle steel, the outer side wall of the first support bar 71 is in contact with the outer side wall of the second support bar 72, a cross bar There are two cross supports 7 in the group, each cross support 7 corresponds to a heavy steel pipe 3, two cross supports 7 in the same cross bar assembly, the first cross bar of one cross support 7 6 is parallel to the second cross bar 6 of another cross support 7. The first support bar 71 and the second support bar 72 are non-universal components, which are produced according to the size requirements of on-site assembly. The width of the same support segment 2 Two heavy-duty steel pipes 3 in the direction B are radially connected with cross bars 6 between their upper ends.

In the above scheme, the cross support 7 is set as a split structure, which facilitates the adjustment of the positions of the first support rod 71 and the second support rod 72 during installation, and the first support rod 71 and the second support rod 72 are independent of each other, so that the first support rod 71 and the second support rod 72 are only subjected to the force exerted by their respective ends, thereby having a good axial support effect and ensuring the structure between the first cross bar 6 and the second cross bar 6 stability, to further ensure the mechanical properties of the support section 2 of the present embodiment; the cross support 7 is set to an X shape, that is to say, in the width direction B of the support section 2, the end projection of the cross support 7 coincide, thereby ensuring the unity of the stress on the first crossbar 6 and the second crossbar 6, and the unity of the stress on the first support rod 71 and the second support rod 72, so as to ensure the stress on the internal structure of the support segment 2 in this embodiment coordination, and further improve the reliability of the applied support device 1; the first support rod 71 and the second support rod 72 are set as angle steel, firstly, the angle steel has two sides, which is convenient for the first support rod 71 and the second support The connection between the bar 72 and the connecting plate 8, meanwhile, the angle steel is a standard part, which facilitates the manufacture of the first support bar 71 and the second support bar 72, and reduces the manufacturing cost; the outer side wall of the first support bar 71 and the second support bar 72 contact with the outer side wall of the first support rod 71, try to ensure that the connection position of the end of the first support rod 71 coincides with the connection position of the end of the second support rod 72 in the width direction B of the support segment 2, and then ensure that the first support rod 71 and the consistency of the force of the second support bar 72, and the consistency of the force of the first cross bar 6 and the second cross bar 6, so that the reliability of the support device 1 of this embodiment is improved; by setting two cross supports Part 7 further improves the structural strength of the support segment 2 in the direction perpendicular to the central axis of the heavy-duty steel pipe 3, and further improves the reliability of the support device 1 of this embodiment; the first support rod 71 and the second support rod 72 are Non-universal components, that is to say, the assembled heavy-duty steel pipe support device 1 of this embodiment adopts a combination of universal components and non-universal components, and the universal components are processed in a factory, so that the processing quality of the universal components can be well guaranteed, and each specification The structure and size of the universal component of the model are uniform, and have good interchangeability; on the other hand, due to the large number of structural parts of the support device 1 of this embodiment, in the assembly process, due to the existence of errors, the size and position of each component will inevitably vary. Adjustment, therefore, in this embodiment, some components are used as non-universal components. During the assembly process, the universal components are first assembled to form a rough supporting device 1 frame, and then according to the actual size between the components, blanking is used to make non-universal components. The universal component, first of all, facilitates the assembly of the support device 1 and avoids the waste of components. At the same time, because some components are non-universal components, the adjustability of the support device 1 of this embodiment is also improved, thereby increasing the support of this embodiment. Scope of application of the device 1; on the other hand, because in the supporting device 1 of the present embodiment, during actual installation, if the shape or size of a certain component cannot be well adapted to the installation position, then after the installation is completed, the Internal stress of tension, compression or torsion will inevitably exist inside the component, resulting in a reduction in the fatigue resistance of the support device 1, and a reduction in support strength and stability. Therefore, in the support device 1 of this embodiment, some components are made on-site and non-universal components are used to avoid the existence of internal stress in the components during the installation process, thereby ensuring that the support device 1 of this embodiment has good mechanical properties and reliability, and good stability; each heavy-duty steel pipe 3 is connected as a frame structure through the coordinated connection of the crossbar 6 in the length direction A and width direction B of the support segment 2, which further improves the support device 1 of the present embodiment. The structural strength, as well as the coordination among the various components, make the supporting device 1 of this embodiment have better supporting strength and stability.

Embodiment 4: As shown in Figure 1-8,

As for the assembled heavy-duty steel pipe support device described in Example 3, among the two heavy-duty steel pipes 3 in the same length plane of the support section 2, two diagonal braces 9 are connected to the upper end of one of them, one of which is The other end of 9 is connected to the middle part of another heavy-duty steel pipe 3 in the plane, and another diagonal brace 9 is connected to the middle part of the same heavy-duty steel pipe 3 with one of the diagonal braces 9 of the adjacent support segment 2 , the diagonal braces 9 of each support segment 2 in the same length plane are connected in a wave shape, and the diagonal braces 9 include a rod body 10, and the two ends of the rod body 10 are respectively connected with diagonal braces 11, and the diagonal braces The plate 11 is provided with several through holes, the rod body 10 and the brace plate 11 are welded, the two ends of the rod body 10 are respectively provided with grooves, and the width of the groove is the same as that of the brace plate 11. The width matches, and part of the diagonal bracing plate 11 is inserted into the groove, and the groove is arranged along the centerline axis of the rod body 10. The rod body 10 of the diagonal bracing rod 9 is cylindrical, and the The tip of the slanting brace 11 is also provided with a chamfer. The through holes on the slanting brace 11 are arranged in rows, and each row of through holes is along the central axis of the rod body 10. The support segment 2 It also includes several rod connecting seats 12, which are arranged on the heavy-duty steel pipe 3 corresponding to the cross bar 6, and the cross bars 6 are connected with the respective corresponding rod connecting seats 12 to realize For the connection of the heavy-duty steel pipe 3, the rod connecting seat 12 includes a first seat plate 13 and a second seat plate 14, and the first seat plate 13 and the second seat plate 14 are respectively fixedly connected to the heavy-duty steel pipe 3, The first seat plate 13 and the second seat plate 14 are spaced apart from each other along the heavy steel pipe 3, and the first seat plate 13 and the second seat plate 14 are annular and surround the outer wall of the heavy steel pipe 3 , the first seat plate 13 and the second seat plate 14 are perpendicular to the central axis of the heavy steel pipe 3 .

In the above scheme of this embodiment, by setting up the diagonal braces 9, one of which is connected to the middle part of the other heavy steel pipe 3 of the support section 2, the connection strength between the heavy steel pipes 3 is further improved, and the performance of this embodiment is improved. The reliability and stability of the support device 1, at the same time, another diagonal brace 9 is connected with the adjacent support segment 2, so that the connection strength between the adjacent two support segments 2 is further enhanced; In the length plane of the support segment 2, the diagonal struts 9 of each support segment 2 are connected in a wave shape. When the support device 1 is under pressure along the central axis of the heavy steel pipe 3, the force between the diagonal struts 9 Mutual transmission further improves the uniformity of the structure of the support device 1 of this embodiment, and further improves the reliability and stability of the support device 1 of this embodiment; diagonal bracing plates 11 are arranged at both ends of the rod body 10, and through the passages on it The hole realizes detachable connection with each heavy-duty steel pipe 3, which facilitates the installation and disassembly of the diagonal brace 9; the diagonal brace 11 is welded on the rod body 10 to form an integrated structure, which reduces the number of parts of the supporting device 1 in this embodiment, and further The installation and disassembly of the support device 1 in this embodiment is facilitated; grooves are provided at both ends of the rod body 10, and a part of the brace plate 11 is inserted into the groove to ensure the connection strength between the rod body 10 and the brace plate 11. Improve the support reliability of the support device 1 of this embodiment; the groove is arranged along the center line axis of the rod body 10, and when the diagonal brace rod 9 is stressed, the diagonal brace plate 11 can transmit the force to the rod body 10 along the plane of the diagonal brace plate 11 , to avoid the generation of bending moment, and then ensure the reliability of the connection between the brace plate 11 and the heavy steel pipe 3; to set chamfers at the tip of the brace plate 11, firstly, to avoid scratching the operator during the installation and disassembly process, At the same time, due to the setting of chamfers, the size of the diagonal brace 11 is also reduced without reducing the connection strength of the diagonal brace 11, so as to avoid interference with the installation of other components; the through holes on the diagonal brace 11 are multiple , and arranged in a row along the central axis of the rod body 10, to ensure the connection strength of the slant brace 11, and to ensure the uniformity of the force on each part of the slant brace 11, and further improve the reliability of the support device 1 of this embodiment; through Setting the bar connecting seat 12 to connect the cross bar 6 first facilitates the installation and disassembly of the cross bar 6; at the same time, it avoids the cross bar 6 being directly connected to the heavy steel pipe 3, which will damage the heavy steel pipe 3 and cause the reduction of the mechanical properties of the heavy steel pipe 3 , so the reliability and stability of the support device 1 of this embodiment are also guaranteed; the first seat plate 13 and the second seat plate 14 are fixedly connected to the heavy steel pipe 3 respectively, ensuring the connection between the rod connecting seat 12 and the heavy steel pipe 3 Reliability; the first seat plate 13 and the second seat plate 14 are set apart to further increase the stability of the connection between the rod connecting seat 12 and the heavy steel pipe 3, and also increase the connection position of the rod connecting seat 12, It is convenient to connect the crossbar 6; the first seat plate 13 and the second seat plate 14 are arranged in a ring shape, which increases the connection between the first seat plate 13 and the second seat plate 14 and the heavy steel pipe 3, and further improves The connection strength between the rod connection seat 12 and the heavy steel pipe 3 is improved, and the heavy steel pipe is surrounded by 3, even if the connection between the first seat plate 13 or the second seat plate 14 and the heavy-duty steel pipe 3 is not tight, it will still not be separated from the heavy-duty steel pipe 3, which further improves the strength of the support device 1 of this embodiment. Reliability: the first seat plate 13 and the second seat plate 14 are perpendicular to the central axis of the heavy-duty steel pipe 3, so that the first seat plate 13, the second seat plate 14 and the heavy-duty steel pipe 3 are all positive pressures to avoid bending moments produced, further supporting the reliability of the device 1 .

Embodiment 5: As shown in Figure 1-8,

As for the assembled heavy-duty steel pipe support device described in Embodiment 4, reinforcing ribs 5 are provided between the first seat plate 13 and/or the second seat plate 14 and the outer wall of the heavy-duty steel pipe 3, and the first seat The plate 13 is spliced by a number of arc-shaped first seat plates 13 segments, and the second seat plate 14 is spliced by a plurality of arc-shaped second seat plates 14 segments. The first seat plate 13 A flange 15 is arranged correspondingly on the top and the second seat plate 14, and an adapter member 16 is arranged on the flange 15, and the cross bar 6 of the supporting device is detachably connected with the adapter member 16. The adapter member 16 includes a base 17, the base 17 is connected between the first seat plate 13 and the second seat plate 14, the base 17 is provided with a conversion seat 18, and the conversion seat 18 Comprising a conversion plate 19 corresponding to the cross bar 6, the conversion plate 19 includes a first conversion plate 19 and a second conversion plate 19 perpendicular to the first conversion plate 19, the first conversion plate 19 and the second conversion plate 19 The two conversion plates 19 are respectively connected with the corresponding cross bars 6, and the heavy steel pipe 3 corresponding to the base 17 is also provided with a horizontal web 20, and the horizontal web 20 is arranged on the first seat plate 13 and the second seat plate 13. Between the seat plates 14, one side of the horizontal web 20 is fixedly connected to the heavy steel pipe 3, and the other side is fixedly connected to the base 17, and the horizontal web 20 is perpendicular to the center of the heavy steel pipe 3 axis, the heavy steel pipe 3 corresponding to the base 17 is also provided with a vertical web 21, the upper side of the vertical web 21 is fixedly connected with the first seat plate 13, and the vertical web 21 The lower side of the vertical web 21 is fixedly connected with the second seat plate 14, the inner side of the vertical web 21 is fixedly connected with the heavy steel pipe 3, and the outer side of the vertical web 21 is fixedly connected with the base 17, The base 17 is in the shape of a flat plate, and is in the same plane as the central axis of the heavy-duty steel pipe 3. The conversion seat 18 is formed by splicing two angle steels, one side of one angle steel and the other angle steel One side of the connection is connected to form a T-shape. In the assembled heavy-duty steel pipe support device 1 of this embodiment, the diagonal brace 9, the cross support 7, the rod connecting seat 12 and the transfer member 16 are non-universal Components, the heavy-duty steel pipe 3 and the cross bar 6 are universal components.

The assembled heavy-duty steel pipe support device of this embodiment further ensures the reliability of the connection between the first seat plate 13 and/or the second seat plate 14 and the heavy-duty steel pipe 3 by setting the reinforcing rib 5; the first seat plate 13 and the second seat plate 14 are arranged to be spliced by several arc-shaped grounds, which facilitates the connection between the first seat plate 13 and the second seat plate 14 and the heavy-duty steel pipe 3, and simplifies the installation steps of the support device 1 of this embodiment; The adapter member 16 is arranged on the first seat plate 13 and the second seat plate 14, first of all, it plays a role in strengthening the connection strength between the first seat plate 13 and the second seat plate 14. In the above-mentioned structure of this embodiment Among them, the cross bar 6 is connected with the transfer member 16, the transfer member 16 is set on the bar connecting seat 12, and the bar connecting seat 12 is set on the heavy-duty steel pipe 3, so that the connection of the cross bar 6 to the heavy-duty steel pipe 3 is realized Through the combination of these components, the connection of the cross bar 6 is stable and reliable, and at the same time, the installation and disassembly of the cross bar 6 are facilitated; by setting the conversion plate 19, the conversion plate 19 corresponds to the cross bar 6, which further facilitates the installation and removal of the cross bar 6. The connection of the bar 6; the first conversion plate 19 and the second conversion plate 19 are perpendicular, so that the cross bar 6 in the two planes can be easily connected, which further facilitates the installation and disassembly of the support device 1 of this embodiment ;By being arranged on the horizontal web 20, the reliability of the connection between the base 17 and the heavy steel pipe 3 is ensured; the horizontal web 20 is perpendicular to the heavy steel pipe 3, so that the force exerted by the horizontal web 20 on the heavy steel pipe 3 is a positive pressure , to further ensure the reliability of the connection between the horizontal web 20 and the heavy-duty steel pipe 3; by setting the vertical web 21, further ensure the reliability of the connection between the base 17 and the heavy-duty steel pipe 3; the base 17 is set to a flat panel-shaped, and in the same plane as the central axis of the heavy-duty steel pipe 3, so that when the supporting device 1 supports, the base 17 exerts a positive pressure on the heavy-duty steel pipe 3, ensuring the reliability and reliability of the heavy-duty steel pipe 3 supporting the base 17. Stability; the conversion seat 18 is spliced by two angle steels, first of all, the conversion seat 18 is easy to process and manufacture, and the first conversion plate 19 and the second conversion plate 19 can be directly arranged on each side of the angle steel, directly ensuring The control of the vertical position between the first conversion plate 19 and the second conversion plate 19; the assembled heavy-duty steel pipe support device 1 of this embodiment is composed of universal components and non-universal components to ensure the support reliability of the support device 1 Under the premise of the premise, it makes the production simple, easy to assemble and disassemble, and can be used repeatedly, reducing the use cost and construction difficulty.

Embodiment 6, as shown in Figures 1-8,

This embodiment also discloses a construction method for a temporary pier using the assembled heavy-duty steel pipe support device described in any one of Embodiments 1-5, which includes the following steps in sequence:

A: Pour the foundation 22 for supporting the assembled heavy-duty steel pipe support device 1 at the design position;

B: According to the design requirements, make the various components of the assembled heavy-duty steel pipe support device 1;

C: Assembling the assembled heavy-duty steel pipe support device 1 on the foundation 22,

The height of the foundation 22 ensures that the assembled heavy-duty steel pipe support device 1 has sufficient support strength, rigidity and stability in the vertical and horizontal directions.

In the above scheme of this embodiment, the height of the temporary pier is jointly determined by the height of the foundation 22 and the height of the assembled heavy-duty steel pipe support device 1. In the case of , the higher the height, the worse the stability, and the support strength in the vertical or horizontal direction will be reduced. As for the foundation 22, because it is a reinforced concrete structure, it has better support than the support device 1. Strength, but because it cannot be reused, and the early pouring and post-demolition not only require a lot of labor and materials, but also require a long construction period, which has a high cost of use, and at the same time, its construction is also difficult. Therefore, In this embodiment, the height of the foundation 22 is coordinated with the height of the assembled heavy-duty steel pipe support device 1. On the premise of ensuring that the temporary pier has reliable support strength, the construction difficulty of the temporary pier is reduced, the construction period is shortened, and construction costs and costs are saved. construction period.

Embodiment 7, as shown in Figure 1-8:

As in the construction method described in Example 6, the step B is to manufacture the universal component of the assembled heavy-duty steel pipe support device 1 in the factory, and then transport it to the construction site.

In the above solution of this embodiment, the universal component is produced in the factory, because the factory has complete tools and high-quality site, which can ensure the reliable manufacturing quality of the universal component.

Preferably, in the step C, the universal components of the support segment 2 are assembled from bottom to top, and then the non-universal components of the support device 1 are made according to the actual size between the universal components, and then the non-universal components are installed.

In the above scheme, the universal component is assembled first, and then the non-universal component is manufactured according to the actual structural size. First, it ensures the convenience of the assembly of the support device 1, and also reduces the precision requirement of the universal component manufacturing. manufacturing cost, and after assembly, the internal stress inside the non-universal components and the universal components can be effectively avoided, further ensuring the reliability of the supporting device 1 of this embodiment.

Preferably, in the step C, on the same foundation 22, at least two fabricated heavy-duty steel pipe support devices 1 of the same height are arranged along the width direction of the bridge, and at least two fabricated heavy-duty steel pipe support devices 1 are spaced apart. , a horizontal link 23 is connected between two adjacent fabricated heavy-duty steel pipe support devices 1 .

In the above scheme of this embodiment, a plurality of assembled heavy-duty steel pipe support devices 1 are used, and crossbeams are connected between adjacent assembled heavy-duty steel pipe support devices 1. First, the support strength of the temporary pier is further ensured. At the same time, due to the assembled The support strength and stability of the heavy-duty steel pipe support device 1 are increased, and then, under the premise of ensuring reliable support, the height of the assembled heavy-duty steel pipe support device 1 can be appropriately increased, and the height of the foundation 22 can be reduced, further reducing the construction cost. cost and difficulty of construction; on the other hand, by adopting a plurality of spaced and installed heavy-duty steel pipe support devices 1, other larger structures can be installed on the upper end of the temporary pier, such as a pulley that matches with the bridge push, and a more The large type block ensures the smooth progress of the bridge pushing. Moreover, the larger type block is easy to lubricate and the internal friction is small. Therefore, during the bridge pushing process, the thrust force on the temporary pier is also small, thus reducing the For the strength requirements of the foundation 22 and the assembled heavy-duty steel pipe support device 1, on the basis of further improving the reliability of the temporary pier in this embodiment 22, the construction cost of the temporary pier can be further reduced.

Preferably, in the step C, the length direction A of the support segment 2 of the assembled heavy-duty steel pipe support device 1 is consistent with the length direction of the bridge.

In this field, when the bridge carries out jacking operations, the assembled heavy-duty steel pipe support device 1 is subjected to a thrust along the length direction of the bridge, so in this embodiment, the length direction A of the support segment 2 is set to be equal to the length of the bridge The directions are consistent, thereby improving the stability of the assembled heavy-duty steel pipe support device 1 along the length of the bridge, and further ensuring the reliability of the temporary pier support.

Preferably, in the step C, there are several cross-connections 23 , and at least one cross-connection 23 is arranged on the upper end of the fabricated heavy-duty steel pipe support device 1 .

In the above scheme of this embodiment, there are several cross-connections 23, at least one cross-connection 23 is arranged on the upper end of the assembled heavy-duty steel pipe support device 1, while improving the support strength of the temporary pier, the upper end of the temporary pier is further enlarged It further facilitates the installation and arrangement of other devices on the upper end of the temporary pier, and further facilitates the bridge construction.

All modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (10)

1. A cross support for an assembled heavy-duty steel pipe support device, characterized in that it includes four connection ends, two of which are respectively connected to the inner and outer sides of the corresponding heavy-duty steel pipes, and the other two connection ends are respectively It is connected with the first cross bar and the second cross bar of the assembled heavy-duty steel pipe support device. 2. The cross support according to claim 1, characterized in that: four connecting ends are connected with connection plates, and the cross support is connected with heavy steel pipes, the first cross bar and the second cross through the connection plates. rod connection. 3. The cross brace according to claim 2, characterized in that: the cross brace is a split structure, comprising a first support rod and a second support rod arranged crosswise. 4. The cross brace according to claim 3, characterized in that: the first support rod and the second support rod intersect in an X shape. 5. The cross brace according to claim 3, wherein the first support bar and the second support bar are angle steel. 6. The cross brace according to claim 3, wherein the outer side wall of the first support bar is in contact with the outer side wall of the second support bar. 7. The cross brace according to any one of claims 3-6, characterized in that two cross braces are arranged in one cross bar group of the assembled heavy-duty steel pipe support device, and each cross brace The piece corresponds to a heavy steel pipe. 8. The cross brace according to claim 7, characterized in that: two cross braces in the same cross brace assembly, wherein the first cross brace of one cross brace is connected to the second cross brace of the other cross brace parallel. 9. The cross brace according to claim 8, characterized in that: the first support rod and the second support rod are non-universal components, which are produced by blanking according to the size requirements of on-site assembly. 10. The cross brace according to claim 9, wherein a through hole is arranged on the connecting plate.