A wind-resistant temporary support pier for a steel truss arch bridge construction process

Abstract

The present application relates to a kind of steel truss arch bridge construction process wind resistance temporary support pier, belong to bridge construction technology field.It includes support base plate;Multiple support steel pipe column, four groups of support are connected at the top four corners of support base plate, and each group of support steel pipe column is formed with the way of upper and lower splicing one column.The present application can be positioned by positioning insert piece to facilitate the positioning connection between support steel pipe column and support base plate and I-beam, and the connecting mode only needs to rotate operating ring to realize the limiting connection between each other, the operation mode is very simple, can realize the rapid support pier erection, improve construction efficiency;While setting positioning screw on positioning insert piece, it can be convenient to strengthen the connection between inclined strengthening bar and transverse strengthening bar and support steel pipe column, by setting connection point, it can avoid the connection of strengthening bar by welding, more conducive to the efficient erection of support pier, also convenient for later disassembly and reuse.

Description

Technical Field

[0001] This invention belongs to the field of bridge construction technology and relates to a wind-resistant temporary support pier used in the construction of a steel truss arch bridge. Background Technology

[0002] In incremental launching construction, a construction site is set up on the ground behind the abutment. The bridge beams are poured or assembled segmentally. A steel guide beam, with a length proportional to the launching span, is installed in front of the beam. Then, horizontal jacks are used to apply force, pushing the beam forward onto the construction site. These steps are repeated to complete the entire beam construction. In bridge incremental launching construction, for bridges with wide pier spacing and large spans, due to the limited spanning capacity of the beams, temporary supports need to be set up between the permanent piers to provide temporary support for the beams during the launching process, allowing the beams to be smoothly launched onto the next pier.

[0003] Currently, temporary piers typically have two structures: one is a concrete structure obtained by casting, and the other is a truss-type temporary pier obtained by assembling structural members. Concrete temporary piers offer good structural strength, but their construction process is similar to that of permanent piers, involving numerous procedures that not only consume a significant amount of time but also greatly increase construction costs. The dismantling of temporary piers after bridge construction also requires substantial manpower and resources, further increasing costs. As for truss-type temporary piers, such as... Figure 16 As shown, this type of temporary support has a simple structure, is easy to install and dismantle, and not only saves costs but also shortens the construction period and reduces labor costs. However, this type of temporary support uses flanges and bolts to connect two adjacent steel pipe columns. Because a large number of bolts are required, it is time-consuming and labor-intensive to assemble and disassemble. At the same time, there are generally no connection points between the reinforcing rod and the steel pipe column. Most of them are directly welded for reinforcement and fixation, which also consumes a lot of time and adds trouble to the later dismantling. It is also not conducive to the reuse of components, resulting in a certain waste of resources. Therefore, we propose a wind-resistant temporary support for the construction of steel truss arch bridges to solve the above-mentioned problems. Summary of the Invention

[0004] In view of this, in order to solve the problems that the connection method of traditional truss temporary supports is time-consuming and labor-intensive during splicing and disassembly, and that there are generally no connection points between the reinforcing rods and the steel pipe columns, and most of them are directly welded for reinforcement and fixation, which also consumes a lot of time and adds trouble to the later disassembly, and is not conducive to the reuse of various components, resulting in resource waste, this invention provides a wind-resistant temporary support for the construction process of steel truss arch bridges.

[0005] To achieve the above object, the present application provides the following technical solutions: comprising:

[0006] Supporting bottom plate;

[0007] A plurality of support steel pipe columns, four groups of support connections are arranged at the top of the four corners of the supporting bottom plate, and each group of support steel pipe columns is formed into a column by splicing up and down;

[0008] A plurality of positioning inserts, four of which are respectively fixed at the top of the four corners of the supporting bottom plate, used for positioning connection of the four lowest support steel pipe columns, and the rest are correspondingly arranged at the top of the plurality of support steel pipe columns, used for positioning connection between the two adjacent support steel pipe columns;

[0009] Two I-shaped steel, arranged horizontally and in parallel, and supported and positioned by the four uppermost support steel pipe columns, used for supporting the bottom of the bridge;

[0010] A plurality of inclined reinforcing rods, used for staggered reinforcing connection between adjacent two groups of support steel pipe columns;

[0011] A plurality of transverse reinforcing rods, used for horizontal reinforcing connection between adjacent two groups of support steel pipe columns.

[0012] Further, the inside bottom end of the support steel pipe column is fixedly connected with a fixed block one, the bottom of the fixed block one is fixedly connected with a connecting rod one, the bottom end of the connecting rod one extends downward and is fixedly connected with an insert block one, and the diameter of the insert block one is matched with the inner diameter of the support steel pipe column.

[0013] Further, the positioning insert comprises a bottom plate, a lower insert hole is formed at the top center position of the bottom plate, the bottom plate is fixedly sleeved on the top end of the support steel pipe column through the lower insert hole, and the top of the bottom plate is flush with the top end of the support steel pipe column, a connecting ring is fixedly connected to the top of the bottom plate, a top plate is fixedly connected to the top of the connecting ring, an upper insert hole is formed at the top center position of the top plate, and the hole diameter of the upper insert hole is matched with the outer diameter of the support steel pipe column.

[0014] Further, a plurality of supporting blocks are annularly and slidingly connected to the bottom of the bottom plate with the lower insert hole as the center, a threaded groove is formed at the side of each of the plurality of supporting blocks extending away from each other, an adjusting screw is threadedly connected in each of the plurality of threaded grooves, one end of each of the plurality of adjusting screws extends outward and rotates to penetrate the side wall of the connecting ring, and an inclined surface three is arranged at the top of each of the plurality of supporting blocks.

[0015] Further, the top edge of the bottom plate and the outer wall of the top plate are sealingly connected with the same rotating ring, the inside of the rotating ring is fixedly connected with an end face gear ring, a plurality of adjusting screws are fixedly sleeved with transmission gears matched with the end face gear ring at one end outside the connecting ring, and the outer wall of the rotating ring is fixedly connected with the same operation ring through a plurality of connecting rods.

[0016] Further, the bottom of the I-shaped steel is fixedly connected with two positioning steel pipes in a symmetrical mode, the inside of the positioning steel pipe is fixedly connected with a fixed block two, the bottom of the fixed block two is fixedly connected with a connecting rod two, the bottom end of the connecting rod two extends downward and is fixedly connected with a plug-in block two, the diameter of the plug-in block two is matched with the inner diameter of the supporting steel pipe column, and the bottom end of the positioning steel pipe is provided with an inclined surface two.

[0017] Further, the top four corners of the supporting bottom plate are provided with positioning holes, the inner wall of the positioning hole is annularly provided with a plurality of convex strips two, the inner wall of the top end of the supporting steel pipe column is annularly provided with a plurality of convex strips one, the outer wall of the plug-in block one is annularly provided with a plurality of positioning notches one matched with the convex strips two, the outer wall of the plug-in block two is annularly provided with a plurality of positioning notches two matched with the convex strips one, the top four corners of the supporting bottom plate are provided with annular grooves matched with the bottom plate in a matched mode, and the annular grooves and the positioning holes are located at the same center and are located outside the positioning holes.

[0018] Further, the top of the top plate is annularly provided with a plurality of strip-shaped holes, the top of the plurality of supporting blocks is fixedly connected with a positioning screw, and the top end of the positioning screw extends upward through the strip-shaped hole.

[0019] Further, the oblique reinforcing rod comprises an oblique support rod, the two ends of the oblique support rod are integrally provided with horizontal support rods, one side of the two horizontal support rods is integrally provided with a supporting block, and the top of the two supporting blocks is provided with a through hole one matched with the positioning screw.

[0020] Further, the transverse reinforcing rod adopts a horizontal connecting rod, and the two ends of the transverse reinforcing rod are provided with a through hole two matched with the positioning screw.

[0021] The beneficial effects of the present application are:

[0022] The positioning plug-in part can facilitate the positioning connection between the steel pipe column and the support base plate and the I-shaped steel, the connecting mode only needs to rotate the operation ring to realize the limiting connection between each other, the operation mode is very simple, the piling can be quickly erected, and the construction efficiency is improved; meanwhile, the positioning screw rod is arranged on the positioning plug-in part, the strengthening connection between the inclined strengthening rod and the transverse strengthening rod and the support steel pipe column can be facilitated, the connecting mode of the strengthening rod is avoided, the efficient erection of the piling is more favorable, and the later disassembly and reuse are also facilitated; the connection between the strengthening rod and the positioning plug-in part can also improve the stability of the connection between each other, and the support strength and stability of the whole piling can be ensured.

[0023] Other advantages, objects, and features of the present application will be better understood from the following specification and drawings. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to make the objects, technical solutions and advantages of the present application clearer, the preferred embodiments of the present application will be described in detail below with reference to the drawings, in which:

[0025] Figure 1 It is an overall structure perspective view of the wind-resistant temporary piling for the construction process of the steel truss arch bridge of the present application;

[0026] Figure 2 It is a support base plate structure perspective view of the wind-resistant temporary piling for the construction process of the steel truss arch bridge of the present application;

[0027] Figure 3 It is a support steel pipe column and positioning plug-in part connecting structure perspective view of the wind-resistant temporary piling for the construction process of the steel truss arch bridge of the present application;

[0028] Figure 4 It is a support steel pipe column and positioning plug-in part structure perspective explosion view of the wind-resistant temporary piling for the construction process of the steel truss arch bridge of the present application;

[0029] Figure 5 It is a support steel pipe column structure perspective view of the wind-resistant temporary piling for the construction process of the steel truss arch bridge of the present application;

[0030] Figure 6 It is a support steel pipe column upside-down structure perspective explosion view of the wind-resistant temporary piling for the construction process of the steel truss arch bridge of the present application;

[0031] Figure 7 It is a positioning plug-in part structure perspective explosion view of the wind-resistant temporary piling for the construction process of the steel truss arch bridge of the present application;

[0032] Figure 8 It is a bottom view of a rotating ring structure of a wind-resistant temporary support pier for a steel truss arch bridge construction process of the present application;

[0033] Figure 9 It is a three-dimensional explosion view of a bottom plate and top plate connecting structure of a wind-resistant temporary support pier for a steel truss arch bridge construction process of the present application;

[0034] Figure 10 It is a three-dimensional view of a support block connecting structure of a wind-resistant temporary support pier for a steel truss arch bridge construction process of the present application;

[0035] Figure 11 It is a bottom view of an I-beam connecting structure of a wind-resistant temporary support pier for a steel truss arch bridge construction process of the present application;

[0036] Figure 12 It is a three-dimensional view of an inclined reinforcing rod structure of a wind-resistant temporary support pier for a steel truss arch bridge construction process of the present application;

[0037] Figure 13 It is a three-dimensional view of a transverse reinforcing rod structure of a wind-resistant temporary support pier for a steel truss arch bridge construction process of the present application;

[0038] Figure 14 It is a front view of a connecting structure of a support steel pipe column and a positioning plug-in part of a wind-resistant temporary support pier for a steel truss arch bridge construction process of the present application;

[0039] Figure 15 It is a front view of a positioning structure of a support steel pipe column and a positioning plug-in part of a wind-resistant temporary support pier for a steel truss arch bridge construction process of the present application;

[0040] Figure 16 It is an existing temporary support pier site construction drawing.

[0041] Reference signs: 10, support bottom plate; 101, positioning hole; 102, convex strip two; 103, annular groove;

[0042] 20, support steel pipe column; 201, convex strip one; 202, fixed block one; 203, connecting rod one; 204, plug-in block one; 205, positioning notch one; 206, inclined surface one;

[0043] 30, positioning plug-in part; 301, bottom plate; 302, connecting ring; 303, top plate; 304, lower insertion hole; 305, rotating ring; 306, support block; 307, threaded groove; 308, positioning screw; 309, adjusting screw; 310, inclined surface three; 311, transmission gear; 312, strip hole; 313, connecting rod three; 314, operation ring; 315, end face tooth ring; 316, upper insertion hole;

[0044] 40, I-beam; 401, positioning steel pipe; 402, fixing block two; 403, connecting rod two; 404, inserting block two; 405, positioning notch two; 406, inclined surface two;

[0045] 50, diagonal reinforcing rod; 501, diagonal bracing rod; 502, horizontal bracing rod; 503, supporting block; 504, through hole one;

[0046] 60, transverse reinforcing rod; 601, through hole two;

[0047] 70, locking nut. DETAILED DESCRIPTION

[0048] The present application is described and explained with additional specificity and detail through the use of the accompanying drawings in which:

[0049] The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments of the application and, together with the description, serve to explain the principles of the application. In the drawings:

[0050] The same or similar components in the drawings of the embodiments of the present application correspond to the same or similar components; in the description of the present application, it should be understood that if the terms "upper", "lower", "left", "right", "front", "back" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the positional relationship in the drawings are only for illustrative purposes, and cannot be understood as a limitation of the present application, for those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0051] Embodiment 1

[0052] As Figure 1As shown in the figure, a kind of steel truss arch bridge construction process wind resistance temporary support pier is used in bridge construction field, including support bottom plate 10, multiple support steel pipe columns 20, multiple positioning inserts 30;Support bottom plate 10 can be temporary pouring concrete bottom plate on ground, it can also be the steel structure bottom plate with higher strength, adopt ground bolt and ground connection, for the erection of entire support pier;Multiple support steel pipe columns 20 are connected in four groups at the top of support bottom plate 10 four corners, and each group of support steel pipe columns 20 is formed into a column in the way of upper and lower splicing;Four of multiple positioning inserts 30 are respectively fixed at the top of support bottom plate 10 four corners, for the positioning connection of four support steel pipe columns 20 in the lowermost end, and the rest of positioning inserts 30 are correspondingly arranged at the top of multiple support steel pipe columns 20, for the positioning connection between two adjacent support steel pipe columns 20.

[0053] In one aspect of the embodiment, as Figure 6 As shown, the inside bottom end of support steel pipe column 20 is fixedly connected with fixed block one 202, the bottom of fixed block one 202 is fixedly connected with connecting rod one 203, the bottom end of connecting rod one 203 extends downward and is fixedly connected with insert block one 204, and the diameter of insert block one 204 is matched with the inner diameter of support steel pipe column 20.When two support steel pipe columns 20 are spliced upward and downward, insert block one 204 at the bottom end of the upper support steel pipe column 20 can be inserted into the top opening of the lower support steel pipe column 20, and insert block one 204 continues to move downward until the top end and the bottom end of the two support steel pipe columns 20 are in contact, so as to complete the temporary positioning and insertion between the two support steel pipe columns 20.

[0054] In one aspect of the embodiment, as Figure 7 、 Figure 9 As shown, positioning insert 30 includes bottom plate 301, lower insertion hole 304 is formed in the top center position of bottom plate 301, bottom plate 301 is fixedly sleeved on the top end of support steel pipe column 20 through lower insertion hole 304, and the top of bottom plate 301 is flush with the top end of support steel pipe column 20, connecting ring 302 is fixedly connected to the top of bottom plate 301, top plate 303 is fixedly connected to the top of connecting ring 302, upper insertion hole 316 is formed in the top center position of top plate 303, and the hole diameter of upper insertion hole 316 is matched with the outer diameter of support steel pipe column 20.When the two support steel pipe columns 20 are butted, the upper support steel pipe column 20 can be inserted into the lower support steel pipe column 20 through upper insertion hole 316, and the stability of splicing between the two support steel pipe columns 20 can be further improved by top plate 303.

[0055] In one aspect of the embodiment, as Figure 9 、 Figure 10As shown, the bottom of the base plate 301 is connected with a plurality of support blocks 306 in a ring shape with the upper hole 304 as the center. The side of the plurality of support blocks 306 extending away from each other is provided with a threaded groove 307. The inside of the plurality of threaded grooves 307 is threadedly connected with an adjusting screw 309. One end of the plurality of adjusting screws 309 extends outward and penetrates through the side wall of the connecting ring 302. The top of the plurality of support blocks 306 is provided with a bevel three 310. The bottom end of the support steel pipe column 20 is provided with a bevel one 206 matched with the bevel three 310. Figure 15 As shown, when the upper support steel pipe column 20 is positioned and inserted into the lower support steel pipe column 20 through the upper hole 316, the bottom end of the upper support steel pipe column 20 is supported and positioned on the top of the plurality of support blocks 306. Then, the adjusting screw 309 is rotated to drive the support block 306 to move inward. Through the cooperation of the bevel one 206 and the bevel three 310, the upper support steel pipe column 20 can be lifted upward. At the same time, the fixed block one 202 and the connecting rod one 203 drive the insertion block one 204 to move upward. Figure 14 As shown, when the top of the insertion block one 204 abuts against the bottom of the support block 306, the support block 306 cannot continue to move, thereby limiting and connecting the upper and lower support steel pipe columns 20. This process does not need to use a plurality of bolts for connection, and the operation is simple. The weight of a single support steel pipe column 20 is not too heavy, and the operation is not too laborious. The efficiency of the entire support pier lapping can be improved, and the disassembly is also relatively fast and convenient.

[0056] In one aspect of the embodiment, as shown in Figure 3 , Figure 7 , Figure 8 As shown, the top edge of the base plate 301 and the outer wall of the top plate 303 are sealingly and rotatably connected with the same rotating ring 305. The inside of the rotating ring 305 is fixedly connected with an end face tooth ring 315. One end of the plurality of adjusting screws 309 outside the connecting ring 302 is fixedly provided with a transmission gear 311 engaged with the end face tooth ring 315. The outer wall of the rotating ring 305 is fixedly connected with the same operation ring 314 through a plurality of connecting rods three 313. By holding the operation ring 314 with both hands, the rotating ring 305 can be rotated, thereby driving the end face tooth ring 315 to rotate. At this time, the plurality of adjusting screws 309 can be driven to rotate through the engagement movement of the plurality of transmission gears 311, thereby driving the plurality of support blocks 306 to move closer to each other, so as to lift the upper support steel pipe column 20 and complete the limiting connection. The operation is simple.

[0057] Embodiment 2

[0058] This embodiment is a further improvement of the previous embodiment: as shown in Figure 11As shown, the temporary pier further comprises two I-beams 40, which are arranged horizontally and in parallel, and are connected and positioned by the uppermost four support steel pipe columns 20, and are used to support the bottom of the bridge, and the I-beams 40 are connected and positioned by the connecting mode of the support steel pipe columns 20; the bottom of the I-beam 40 is fixedly connected with two positioning steel pipes 401 in a symmetrical manner, the positioning steel pipe 401 is fixedly connected with a fixing block two 402 inside, the fixing block two 402 is fixedly connected with a connecting rod two 403 at the bottom, the connecting rod two 403 extends downward at the bottom and is fixedly connected with a plug-in block two 404, the diameter of the plug-in block two 404 is matched with the inner diameter of the support steel pipe column 20, and the bottom end of the positioning steel pipe 401 is provided with an inclined surface two 406. When the four groups of support steel pipe columns 20 are connected, the I-beam 40 is hoisted, the plug-in block two 404 is positioned and inserted into the uppermost support steel pipe column 20 in the connecting mode of the support steel pipe column 20, the positioning steel pipe 401 is inserted from the upper insertion hole 316 and supported on the plurality of support blocks 306, at this time, the positioning and insertion of the I-beam 40 are completed, and then the rotating ring 305 is rotated to move the plurality of support blocks 306 close to each other, so that the I-beam 40 is connected and positioned.

[0059] Embodiment 3

[0060] This embodiment is a further improvement on the previous embodiment: as shown in Figure 2 、 Figure 5 、 Figure 11 As shown, the top four corners of the support base plate 10 are provided with positioning holes 101, the inner wall of the positioning hole 101 is annularly provided with a plurality of convex strips two 102, the inner wall of the top end of the support steel pipe column 20 is annularly provided with a plurality of convex strips one 201, the outer wall of the plug-in block one 204 is annularly provided with a plurality of positioning grooves one 205 matched with the convex strips two 102, the outer wall of the plug-in block two 404 is annularly provided with a plurality of positioning grooves two 405 matched with the convex strips one 201, and the top four corners of the support base plate 10 are provided with annular grooves 103 matched with the base plate 301, and the annular grooves 103 are located at the same center as the positioning holes 101 and are located outside the positioning holes 101. The annular grooves 103 facilitate the installation of the positioning and insertion part 30, the base plate 301 is installed in the annular grooves 103, and the connection between the support steel pipe column 20 and the support base plate 10 is facilitated; when the support steel pipe column 20 and the support base plate 10 are connected, the positioning grooves one 205 on the plug-in block one 204 correspond to the convex strips two 102, which can guide the splicing of the support steel pipe column 20 and facilitate the connection of the reinforcing rod in the later stage; when the I-beam 40 and the support steel pipe column 20 are connected, the positioning grooves two 405 on the plug-in block two 404 are matched with the convex strips one 201, which facilitates the positioning and installation of the I-beam 40.

[0061] Embodiment 4

[0062] This embodiment is a further improvement of the previous embodiment: as shown in Figure 7 , Figure 9 The top of the top plate 303 is annular and has a plurality of strip-shaped holes 312, the top of each of the plurality of support blocks 306 is fixedly connected with a positioning screw rod 308, and the top end of the positioning screw rod 308 penetrates through the strip-shaped hole 312 and extends upward. When the plurality of support blocks 306 are moved close to each other to limit and connect the upper and lower two support steel pipe columns 20, the plurality of positioning screw rods 308 can be simultaneously moved close to each other in the corresponding strip-shaped holes 312, and the positioning screw rod 308 can facilitate the connection of the inclined reinforcing bars 50 and the transverse reinforcing bars 60, without the need for welding, thereby facilitating quick installation and later disassembly, and improving the reusability.

[0063] In one aspect of the embodiment, as shown in Figure 12 The temporary pier further comprises a plurality of inclined reinforcing bars 50 for staggered reinforcing connection between adjacent two groups of support steel pipe columns 20; the inclined reinforcing bar 50 comprises an inclined strut 501, both ends of the inclined strut 501 are integrally provided with a horizontal strut 502, one side of each of the two horizontal struts 502 is integrally provided with a support block 503, and the top of each of the two support blocks 503 is provided with a through hole one 504 matched with the positioning screw rod 308. Through the layer-by-layer splicing of the support steel pipe columns 20, when spliced to a certain height, the two through holes one 504 on the inclined reinforcing bar 50 are correspondingly connected between the upper and lower two groups of support steel pipe columns 20 staggered with each other, the positioning screw rod 308 is inserted into the through hole one 504, and then the locking nut 70 is used for fixing, as shown in Figure 1 Two inclined reinforcing bars 50 are used for cross connection, which improves the connection stability between adjacent two groups of support steel pipe columns 20, in order to adapt to the long side and short side width of the pier, the inclined strut 501 on the inclined reinforcing bar 50 can be configured with different lengths and inclinations, so that the inclined reinforcing bar 50 has two specifications, thereby meeting the different erection widths between adjacent two groups of support steel pipe columns 20.

[0064] In one aspect of the embodiment, as shown in Figure 13 The temporary pier further comprises a plurality of transverse reinforcing bars 60 for horizontal reinforcing connection between adjacent two groups of support steel pipe columns 20; the transverse reinforcing bar 60 adopts a horizontal connecting rod, and both ends of the transverse reinforcing bar 60 are provided with through holes two 601 matched with the positioning screw rod 308. As shown in Figure 1As shown, when splicing four groups of support steel pipe columns 20, each group adopts the equal-height synchronous splicing mode, for example, after the four support steel pipe columns 20 at the lowermost position are connected with the support bottom plate 10 in a limiting manner, at this time, the adjacent two support steel pipe columns 20 can be connected in a horizontal reinforcing manner through the horizontal reinforcing rod 60, forming a rectangular connection mode, after the support steel pipe columns 20 at each layer are spliced, the horizontal reinforcing rod 60 can be used for horizontal reinforcing connection, or the connection can be performed at an interval of one layer, which can be determined according to the specific construction condition; similarly, in order to adapt to the long-side and short-side widths of the support pier, the horizontal reinforcing rod 60 can be configured with different lengths, so that the horizontal reinforcing rod 60 also has two specifications, thereby meeting the different erection widths between the adjacent two groups of support steel pipe columns 20.

[0065] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and not to limit it, although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the technical solutions, which should be covered in the scope of the claims of the present application.

Claims

1. A wind-resistant temporary support pier for use in the construction of a steel trussed arch bridge, characterised in that, The utility model relates to a bridge support structure, including: Supporting bottom plate (10); A plurality of support steel pipe columns (20) are connected in four groups on the top four corners of the supporting bottom plate (10) and form a stand column in an upper and lower splicing mode; A plurality of positioning insert pieces (30) are respectively arranged at the top four corners of the supporting bottom plate (10) and are used for the positioning connection of the four lowest support steel pipe columns (20), and the remaining ones are correspondingly arranged at the top ends of the plurality of support steel pipe columns (20) and are used for the positioning connection between the two adjacent support steel pipe columns (20); Two I-shaped steel (40) are arranged in a horizontal parallel mode and are supported and positioned by the four highest support steel pipe columns (20) and are used for supporting the bottom of the bridge; A plurality of inclined reinforcing rods (50) are used for the staggered reinforcing connection between the two adjacent groups of support steel pipe columns (20); A plurality of transverse reinforcing rods (60) are used for the horizontal reinforcing connection between the two adjacent groups of support steel pipe columns (20); The positioning insert piece (30) comprises a bottom plate (301), a lower insertion hole (304) is formed in the top center position of the bottom plate (301), the bottom plate (301) is fixedly arranged at the top end of the support steel pipe column (20) through the lower insertion hole (304), the top of the bottom plate (301) is flush with the top end of the support steel pipe column (20), a connecting ring (302) is fixedly connected to the top of the bottom plate (301), a top plate (303) is fixedly connected to the top of the connecting ring (302), an upper insertion hole (316) is formed in the top center position of the top plate (303), and the hole diameter of the upper insertion hole (316) is matched with the outer diameter of the support steel pipe column (20); A plurality of supporting blocks (306) are slidably connected to the top of the bottom plate (301) in a ring shape with the lower insertion hole (304) as the center, a threaded groove (307) is formed in the side of each of the plurality of supporting blocks (306) away from each other, an adjusting screw (309) is screw-connected in each of the plurality of threaded grooves (307), one end of each of the plurality of adjusting screws (309) extends outward and penetrates through the side wall of the connecting ring (302) in rotation, and an inclined surface three (310) is arranged on the top of each of the plurality of supporting blocks (306), and the bottom end of the support steel pipe column (20) is provided with an inclined surface one (206) matched with the inclined surface three (310); The same rotating ring (305) is sealingly and rotatably connected to the top edge of the bottom plate (301) and the outer wall of the top plate (303), an end face tooth ring (315) is fixedly connected to the inner wall of the rotating ring (305), a transmission gear (311) engaged with the end face tooth ring (315) is fixedly arranged on one end of each of the plurality of adjusting screws (309) outside the connecting ring (302), and the outer wall of the rotating ring (305) is fixedly connected to the same operation ring (314) through a plurality of connecting rods three (313).

2. A temporary wind-resistant support pier for use in the construction of a steel-truss arch bridge as defined in claim 1, wherein The inner bottom end of the support steel pipe column (20) is fixedly connected with a fixed block one (202), the bottom of the fixed block one (202) is fixedly connected with a connecting rod one (203), the bottom end of the connecting rod one (203) extends downward and is fixedly connected with a plug-in block one (204), and the diameter of the plug-in block one (204) is matched with the inner diameter of the support steel pipe column (20).

3. A temporary wind-resistant support pier for use in the construction of a steel-truss arch bridge as defined in claim 2, wherein The bottom of the I-shaped steel (40) is fixedly connected with two positioning steel pipes (401) in a symmetrical mode, the inner part of the positioning steel pipe (401) is fixedly connected with a fixed block two (402), the bottom of the fixed block two (402) is fixedly connected with a connecting rod two (403), the bottom end of the connecting rod two (403) extends downward and is fixedly connected with a plug-in block two (404), and the diameter of the plug-in block two (404) is matched with the inner diameter of the support steel pipe column (20), and the bottom end of the positioning steel pipe (401) is provided with an inclined surface two (406).

4. A temporary wind-resistant support pier for use in the construction of a steel-truss arch bridge as defined in claim 3, wherein The top of the support base plate (10) is provided with a positioning hole (101) at each corner, the inner wall of the positioning hole (101) is annularly provided with a plurality of convex strips two (102), the inner wall of the top of the support steel pipe column (20) is annularly provided with a plurality of convex strips one (201), the outer wall of the plug-in block one (204) is annularly provided with a plurality of positioning notches one (205) matched with the convex strips two (102), the outer wall of the plug-in block two (404) is annularly provided with a plurality of positioning notches two (405) matched with the convex strips one (201), the top of the support base plate (10) is provided with an annular groove (103) matched with the base plate (301) at each corner, and the annular groove (103) is located at the same center as the positioning hole (101) and is located outside the positioning hole (101).

5. A temporary wind-resistant pier for use in the construction of a steel-truss arch bridge according to claim 4, wherein The top of the top plate (303) is annularly provided with a plurality of strip-shaped holes (312), the top of each of the plurality of support blocks (306) is fixedly connected with a positioning screw rod (308), and the top end of the positioning screw rod (308) penetrates through the strip-shaped hole (312) and extends upward.

6. A temporary wind-resistant pier for use in the construction of a steel-truss arch bridge as defined in claim 5, wherein The oblique reinforcing rod (50) comprises an oblique support rod (501), the two ends of the oblique support rod (501) are integrally provided with horizontal support rods (502), one side of each of the two horizontal support rods (502) is integrally provided with a support block (503), and the top of each of the two support blocks (503) is provided with a through hole one (504) matched with the positioning screw rod (308).

7. A temporary wind-resistant pier for use in the construction of a steel-truss arch bridge as defined in claim 1, wherein The transverse reinforcing rod (60) adopts a horizontal connecting rod, and the two ends of the transverse reinforcing rod (60) are provided with through holes two (601) matched with the positioning screw rod (308).

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