Bridge drilling construction platform supporting frame and supporting frame system

Abstract

The utility model discloses a bridge drilling construction platform supporting frame and a supporting frame system, and relates to the field of drilling pile construction platform construction.The bridge drilling construction platform supporting frame comprises a supporting piece and a movable piece, the supporting piece comprises a steel casing, and supporting brackets are symmetrically arranged on the outer side wall of the steel casing; the supporting piece further comprises aisle vertical beams which are used for being parallel to the table top of the construction platform so as to support the table top of the construction platform. The movable part comprises a transverse supporting beam which transversely penetrates through the steel casing and can stretch out and draw back in two directions, the supporting bracket is located below the transverse supporting beam, an adjusting part used for adjusting the longitudinal position of the transverse supporting beam is arranged on the supporting bracket, the aisle vertical beam is located on the transverse supporting beam, and the supporting part is a bearing frame body of the construction platform. The height and the width of the movable part can be flexibly adjusted according to the condition of a construction site, the supporting part is an original supporting steel casing on the lower portion of a bridge, material input for building a large number of drilling construction platforms is reduced, use input of a short-period temporary structure for bridge construction is reduced to a great extent, and construction efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of bored pile construction platform construction, in particular to a bridge bored pile construction platform support frame and a support frame system. Background Art

[0002] At present, the construction technology of bridge drilling platform is widely used when the pier is located in the water and it is inconvenient to adopt the construction method of island building. It is mainly used as a temporary structure for pile foundation construction on the water working platform. Its application facilitates the construction of the lower structure of the bridge project, and because of its similar structural type, the commonly used bridge drilling platform support steel pipes are mostly "steel pipe pile + Bailey truss form" or "steel pipe pile + steel form", so it has strong turnover and versatility. Bridge construction projects usually combine these characteristics to form a mature drilling platform construction technology.

[0003] With the continuous advancement of bridge construction technology, the bridge pile foundation is mainly arranged in a rectangular or plum blossom arrangement. For the bridge pile foundation arranged in a plum blossom arrangement, the supporting steel pipe piles of the drilling platform are prone to conflict with the bored pile positions, making it difficult to avoid them. Especially in deep water areas, the supporting steel pipe piles of the drilling platform need to avoid the bridge pile foundation while also considering the requirements of water flow scouring and bearing capacity. The driving depth is relatively large, which also means that there are too many factors to consider when building the drilling platform, resulting in increased difficulty, and the implementation process is cumbersome, which will also extend the construction time and affect the construction progress. Utility Model Content

[0004] The present application provides a bridge drilling construction platform support frame and a support frame system, which can solve the technical problem in the prior art that when the pile foundation is arranged with plum blossom piles, the support frame of the drilling platform conflicts with the bridge pile foundation, resulting in difficulty in building the drilling platform and low construction efficiency.

[0005] The embodiment of the present application provides a bridge drilling construction platform support frame, comprising:

[0006] The support member includes a steel casing, and the outer side wall of the steel casing is symmetrically provided with supporting brackets. The support member also includes a walkway vertical beam parallel to the construction platform table top to support the construction platform table top;

[0007] The movable part includes a transverse support beam which passes through the steel casing transversely and can be retracted in two directions. The support corbel is located below the transverse support beam. The support corbel is provided with an adjusting part for adjusting the longitudinal height of the transverse support beam. The vertical beam of the walkway is located on the transverse support beam.

[0008] In one embodiment, a through opening is provided on the side wall of the steel casing, the transverse support beam is located in the through opening, and a reinforcing plate for securing the edge of the through opening is provided on the outer periphery of the through opening.

[0009] In one embodiment, a pad is provided at the bottom edge of the through opening for stabilizing both ends of the transverse support beam.

[0010] In one embodiment, there are two walkway vertical beams, and one end of the walkway vertical beam is provided with a connecting plate for connecting the walkway vertical beams in two adjacent support members.

[0011] In one embodiment, the transverse support beam includes a hollow outer shell beam and two telescopic beams movably arranged at both ends of the outer shell beam, one end of the telescopic beam is arranged in the outer shell beam, and the other end extends out of the steel casing through the through opening, and the walkway vertical beam is arranged at one end of the telescopic beam extending out of the steel casing.

[0012] In one embodiment, bolt connectors for fixing the extension length of the telescopic beam are provided at both ends of the outer casing beam.

[0013] In one embodiment, two horizontal jacks for providing telescopic power to the telescopic beam are provided on the outer casing beam, and the top heads of the two horizontal jacks face opposite directions.

[0014] In one embodiment, a reaction seat is provided on the telescopic beam, and the reaction seat is located at the top of the horizontal jack.

[0015] In one embodiment, the support member includes a longitudinal jack, and the head of the longitudinal jack is located below the end of the telescopic beam extending out of the steel casing.

[0016] In a second aspect, an embodiment of the present application provides a bridge drilling construction platform support frame system, comprising:

[0017] There are multiple bridge drilling construction platform support frames, and the walkway vertical beams in two adjacent bridge drilling construction platform support frames are connected end to end to form a whole.

[0018] The beneficial effects brought by the technical solution provided in the embodiments of the present application include:

[0019] By using the bored pile steel casing as the drilling platform support, modifying it and adding a bidirectionally retractable cross support beam, the high load-bearing capacity of the steel casing as the original support system of the bridge substructure is effectively utilized, reducing the investment in a large amount of temporary support materials for the drilling construction platform, and greatly reducing the use of short-term temporary structures for bridge construction. It not only greatly reduces the construction time and reduces the construction risk, but also the bidirectionally retractable cross support beam as the force conversion system of the steel casing support system can be flexibly adjusted according to the actual construction site, which is also more convenient for the installation and removal of the support system, reducing the conversion process of the lifting ears in the hoisting construction, greatly reducing the construction risk and difficulty, and greatly improving the construction efficiency of the subsequent bored pile construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 A schematic diagram of a bridge drilling construction platform support structure provided in an embodiment of the present application;

[0022] Figure 2 A schematic diagram of a through-type opening structure in a bridge drilling construction platform support frame provided in an embodiment of the present application;

[0023] Figure 3 A schematic diagram of the structure of a horizontal jack and a longitudinal jack in a bridge drilling construction platform support frame provided in an embodiment of the present application;

[0024] Figure 4 A top view of a bridge drilling construction platform support frame provided in an embodiment of the present application;

[0025] Figure 5 A schematic diagram of the structure of a connecting plate in a vertical beam of a walkway in a bridge drilling construction platform support frame provided in an embodiment of the present application;

[0026] Figure 6 A schematic structural diagram of a bridge drilling construction platform support frame system provided in an embodiment of the present application.

[0027] In the figure: 1. Steel casing; 101. Supporting corbel; 102. Through-type opening; 1021. Reinforcement plate; 103. Pad; 2. Horizontal support beam; 201. Outer sleeve beam; 202. Telescopic beam; 203. Bolted connector; 3. Aisle vertical beam; 301. Connecting plate; 401. Horizontal jack; 402. Reaction seat; 403. Longitudinal jack. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0029] The embodiment of the present application provides a bridge drilling construction platform support frame, which can solve the technical problem that when building the drilling platform, the supporting steel pipe piles of the drilling platform conflict with the bored pile positions, causing inconvenience in building and complicated construction process.

[0030] Figure 1 This is a schematic diagram of a bridge drilling construction platform support frame structure provided in an embodiment of the present application. Figure 4 An overhead view of a bridge drilling construction platform support frame provided in an embodiment of the present application, the construction platform support frame in the present application includes support members and movable members, the support members mainly serve as the bearing frame body of the construction platform, and its bearing capacity needs to be the primary consideration. When performing bored pile construction, due to the unstable soil at the construction site, it is very difficult to construct reinforced concrete retaining walls, so casings are required to protect the bored piles to prevent hole collapse and avoid affecting the construction progress and safety. The casing serves as the original support structure of the lower part of the bridge, and its high bearing capacity can also meet the bearing requirements of the construction platform. Therefore, in order to reduce the steps of building the construction platform, reduce the investment in building the platform, and reduce the difficulty of construction, in the present application, the steel casing 1 driven into the bored pile is used as the support member of the construction platform in the present application, and the movable member is arranged on the steel casing 1, and can be accurately adjusted according to the actual support height and support width.

[0031] Furthermore, support corbels 101 are symmetrically provided on the outer wall of the steel casing 1, and the support member also includes a walkway vertical beam 3 which is parallel to the construction platform surface to support the construction platform surface; the movable member includes a transverse support beam 2 which transversely penetrates the steel casing 1 and is retractable in both directions, the support corbel 101 is located below the transverse support beam 2, and the support corbel 101 is provided with an adjusting member for adjusting the longitudinal position of the transverse support beam 2, and the walkway vertical beam 3 is arranged on the transverse support beam 2, which can disperse the force of the steel casing 1 and improve the overall stability and bearing capacity. At the same time, the transverse support beam 2 can be adjusted laterally and vertically according to the actual situation of the construction platform.

[0032] Specifically, Figure 2A structural schematic diagram of a through-type opening 102 in a bridge drilling construction platform support frame provided in an embodiment of the present application, wherein two oppositely arranged through-type openings 102 are opened on the steel casing 1, and the center points of the two through-type openings 102 are located on the same midline of the cross section of the steel casing 1, and the top of the through-type opening 102 is separated from the top of the steel casing 1 by a certain distance, and the spacing distance cannot be longer than the thickness of the vertical beam 3 of the walkway, and the transverse support beam 2 passes through the two through-type openings 102, and the length of the transverse support beam 2 is not less than the diameter of the cross section of the steel casing 1 when the transverse support beam 2 is fully retracted, so that when the transverse support beam 2 is fully retracted, its two ends are respectively placed in the two through-type openings 102 or extend out of the through-type opening 102.

[0033] The cross support beam 2 can be extended in both directions or retracted inward according to the actual situation of the construction platform surface. Specifically, the cross support beam 2 includes an outer sleeve beam 201, and a telescopic beam 202 that can slide in the outer sleeve beam 201 is movably arranged at both ends of the outer sleeve beam 201. The outer sleeve beam 201 is hollow, and one end of the two telescopic beams 202 is arranged in the outer sleeve beam 201, and the other end extends out of the steel casing 1 through the through opening 102. In one embodiment, a partition plate can also be arranged in the middle position of the outer sleeve beam 201 to divide the internal space of the outer sleeve beam 201 into two parts to limit the recovery distance of the two telescopic beams 202. At the same time, a sliding member can be arranged between the outer sleeve beam 201 and the telescopic beam 202 to reduce the sliding resistance between the telescopic beam 202 and the outer sleeve beam 201, and also to limit the sliding of the outer sleeve beam 201.

[0034] Furthermore, bolt connectors 203 for fixing the extension length of the telescopic beam 202 are provided at both ends of the outer sleeve beam 201. When the telescopic beam 202 is extended until it is located below two adjacent walkway vertical beams 3, the bolt connector 203 is used to fix the position of the telescopic beam 202 to prevent displacement between the telescopic beam 202 and the walkway vertical beam 3 due to long-term gravity or shaking of the frame after the drilling platform is built, thereby affecting the overall stability and safety of the construction platform.

[0035] Specifically, the bolt connector 203 can use several bolts to pass through the outer sleeve beam 201, and open corresponding screw holes on the telescopic beam 202 to achieve a threaded connection between the bolts and the telescopic beam 202. A screw rod can also be set to pass through the telescopic beam 202 and the outer sleeve beam 201 at the same time, and a nut is set at one end of the screw rod passing through the telescopic beam 202 and the outer sleeve beam 201. Using bolts to connect the two components is a commonly used connection method in the technical field. There is no limited connection method in the present application. It is sufficient to achieve the limitation of the telescopic beam 202, and no further details will be given here.

[0036] The construction platform table top is laid directly above the steel casing 1, and the cross support beam 2 can provide support for the construction platform surface. It cooperates with the walkway vertical beam 3 and the steel casing 1 to disperse the force of the steel casing 1. Specifically, there are two walkway vertical beams 3, and the two walkway vertical beams 3 are respectively arranged at one end of the telescopic beam 202 extending out of the steel casing. The telescopic beam 202 and the walkway vertical beam 3 are vertically arranged in the horizontal direction. In actual use, the bottom surface of the construction platform table top contacts the top surface of the walkway vertical beam 3. Therefore, the walkway vertical beam 3 can be set in advance on the bottom surface of the construction platform surface. The two walkway vertical beams 3 are arranged in parallel and spaced at a suitable distance. After the extended length of the telescopic beam 202 is equal to the spacing distance between the two walkway vertical beams 3, it is ensured that each group of cross support beams 2 is supported under the two walkway vertical beams 3, and then laid together with the construction platform table top and the walkway vertical beams 3, or after the positioning of the cross support beam 2 is completed, the walkway vertical beams 3 and the construction platform table top can be laid separately. There is no specific restriction in this application.

[0037] The telescopic beam 202 can be extended and retracted in both directions at the same time. When extending and retracting, the two telescopic beams 202 need to move synchronously to maintain the uniformity of the overall support points of the support frame. Manual debugging obviously cannot meet its synchronization and accuracy requirements, and will also increase the tediousness of the work. Therefore, in the present application, a horizontal jack 401 is also provided on the outer sleeve beam 201 to provide telescopic power for the two telescopic beams 202.

[0038] Specifically, Figure 3 A structural schematic diagram of a horizontal jack 401 and a longitudinal jack 403 in a bridge drilling construction platform support frame provided in an embodiment of the present application. In order to simultaneously meet the bidirectional movement requirements of the two telescopic beams 202, in an embodiment of the present application, there are two horizontal jacks 401, and the tops of the two horizontal jacks 401 are arranged in opposite directions, which are consistent with the telescopic direction of the telescopic beams 202. Furthermore, a reaction seat 402 is arranged at the free end of the two telescopic beams 202, and the reaction seat 402 is located at the top of the horizontal jack 401 and is connected to the top. When the horizontal jack 401 is pushed outward, the two telescopic beams 202 move in opposite directions together with the reaction seat 402, and the overall length of the transverse support beam 2 is extended. When the length of the transverse support beam 2 needs to be shortened, the top of the horizontal jack 401 can be retracted.

[0039] It should be noted that the horizontal jack 401 can be detachably connected to the transverse support beam 2. After the telescopic beam 202 is extended to a fixed length, the horizontal jack 401 is removed and used to adjust multiple groups of support frames in the present application to reduce construction costs. When the construction is completed and the support frames are removed, the telescopic beam 202 can be manually pushed back into the outer sleeve beam 201. A horizontal jack 401 can also be set on each group of support frames, and they can be removed and recycled together when the support frames are removed to improve the stability of the support frames. The method of use depends on the actual construction situation.

[0040] After the initial adjustment of the transverse position of the telescopic beam 202 and the vertical beam 3 of the walkway, it is also necessary to adjust the longitudinal position so that the transverse support beam 2 can reach the bottom of the vertical beam 3 of the walkway and provide an upward supporting force to the construction platform. Therefore, the support frame in the present application also includes an adjustment member for adjusting the longitudinal position of the transverse support beam 2, and the adjustment member is arranged on the two supporting brackets 101.

[0041] Specifically, the adjusting member includes a longitudinal jack 403, and the top of the longitudinal jack 403 is located below the end of the telescopic beam 202 extending out of the steel casing 1. The height of the through-type opening 102 on the side wall of the steel casing 1 in the longitudinal direction needs to be higher than the height of the cross support beam 2 to facilitate the passage of the cross support beam 2. The wall thickness of the steel casing 1 itself is limited, which may cause the contact area between the cross support beam 2 and the steel casing 1 to be too small and the stability to be insufficient when the cross support beam 2 is placed at the through-type opening 102. Therefore, in the present application, a pad 103 is also provided on the bottom edge of the through-type opening 102. The pad 103 can increase the contact area between the cross support beam 2 and the steel casing 1 when it is placed, thereby ensuring its stable placement on the steel casing 1.

[0042] When both ends of the transverse support beam 2 are placed on the pad 103, there is still a gap between the top edge of the through opening 102 and the top surface of the transverse support beam 2 for the longitudinal movement of the transverse support beam 2. In one embodiment of the present application, the gap is maintained at 5 cm so that the vertical jack can push the transverse support beam 2 upward until the telescopic beam 202 in the transverse support beam 2 is tightly pressed against the bottom of the vertical beam 3 of the walkway, and cooperates with the longitudinal jack 403 to provide upward support force for the construction platform.

[0043] When the construction platform table top is paved, most of the gravity of the construction platform will be transferred to the cylinder below the through-opening 102 of the steel casing 1, but the top of the steel casing 1 may still face the pressure of a part of the construction platform. The bearing capacity at the through-opening 102 on the steel casing 1 will be weaker than other parts of the cylinder. Long-term exposure to gravity may cause the steel casing 1 to deform from the edge of the through-opening 102, affecting the integrity and stability of the overall structure of the support frame. Therefore, in the application, a reinforcement plate 1021 is welded on the outer periphery of the through-opening 102 on the steel casing 1. The reinforcement plate 1021 can improve the firmness of the edge of the through-opening 102, prevent it from being deformed under the long-term pressure of the construction platform, and thereby affect the overall structure of the support frame, and even cause safety accidents.

[0044] Furthermore, Figure 5A structural schematic diagram of a connecting plate 301 in a walkway vertical beam 3 of a bridge drilling construction platform support frame provided in an embodiment of the present application, wherein a connecting plate 301 for connecting two adjacent walkway vertical beams 3 is arranged at one end of the walkway vertical beam 3. Currently, pile foundations are mostly arranged in a rectangular shape and a plum blossom pile shape. The support members in the present application are arranged on a plurality of steel casings 1 in the same row of pile foundations, and are connected end to end through the walkway vertical beams 3 therein to form an integrated body, thereby providing longitudinal support for the construction platform table top.

[0045] Specifically, a connecting plate 301 is provided at one end of each walkway vertical beam 3, and the number of connecting plates 301 provided at the same end of the walkway vertical beam 3 is at least one, and the connecting plate 301 is made of steel. The connecting plate 301 is a connecting component commonly used on the market, and a plurality of screw holes are provided on the plate body thereof, and the connecting plate 301 is divided into two halves along its midline, one half is connected to the top surface of the walkway vertical beam 3 by screws, and the other side extends out of the walkway vertical beam 3. At the same time, in order to save on-site construction and splicing time, holes can be punched in advance on the side of the walkway vertical beam 3 where the connecting plate 301 is not provided, and the drilling position and number of the holes are consistent with the position of the screw holes on the connecting plate 301. When splicing two adjacent walkway vertical beams 3, one end of each walkway vertical beam 3 with the connecting plate 301 is aligned with the end of the adjacent walkway vertical beam 3 where the connecting plate 301 is not provided, and then the screws can be directly implanted to improve work efficiency.

[0046] When using the support frame in the present application, a through opening 102 is firstly opened on the steel casing 1 which has been inserted into the bored pile, and then a reinforcing plate 1021 is used to reinforce the outer periphery of the through opening 102. After the outer sleeve beam 201 and the telescopic beam 202 are processed in the back field, the telescopic beam 202 is nested inside the outer sleeve beam 201, and is hoisted to the specified elevation of the steel casing 1 of the bored pile by a hoisting device, and passes through the through opening 102 to ensure that it is firmly placed on the steel casing 1, and then according to the needs of the on-site construction, the telescopic beam 202 is inserted into the outer sleeve beam 201. Request, pull out the two telescopic beams 202, make the two telescopic beams 202 and the outer sleeve beam 201 at a suitable length, and use the bolt connector 203 to fix the position of the telescopic beam 202, then set the pad 103 at the through opening 102 to ensure the stable placement of the telescopic beam 202 and the outer sleeve beam 201, and use the longitudinal jack 403 to adjust the longitudinal height of the horizontal support beam 2, finally install the aisle vertical beam 3 on the telescopic beam 202, and lay the construction platform table on the aisle vertical beam 3 to ensure the stable connection of the support frame.

[0047] The present application also provides a bridge drilling construction platform support frame system, Figure 6 A schematic diagram of the structure of a bridge drilling construction platform support frame system provided in an embodiment of the present application includes a plurality of the above-mentioned bridge drilling construction platform support frames, and the walkway vertical beams 3 in two adjacent bridge drilling construction platform support frames are connected end to end to form a whole.

[0048] In the present application, the bored pile steel casing 1 is used as a supporting pile to reduce the use of conventional construction platform supporting piles, and a new bored pile construction platform supporting system is formed, which replaces the traditional bored platform construction method of first platform and then casing, and effectively utilizes the high bearing capacity characteristics of the steel casing 1 as the original supporting system structure of the bridge substructure, reduces the use of a large number of temporary supports for the bored construction platform, greatly reduces the use of temporary structures during the bridge construction phase, and also greatly reduces the construction time and construction risks, which is of far-reaching significance for civilized and environmentally friendly construction. In addition, according to the pile position setting, the layout position of the bored pile can be flexibly adjusted during the construction of the bored pile body, so as to avoid the dismantling of the supporting system due to the conflict between the pile body construction and the supporting frame, resulting in a decrease in the bearing capacity of the construction platform.

[0049] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0050] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0051] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A bridge drilling construction platform support frame, characterized in that: include: A support member, comprising a steel casing (1), wherein the outer side wall of the steel casing (1) is symmetrically provided with support brackets (101), and the support member also comprises a walkway vertical beam (3) parallel to the construction platform surface to support the construction platform surface; The movable part comprises a transverse support beam (2) which runs transversely through the steel casing (1) and is retractable in both directions; the support bracket (101) is located below the transverse support beam (2); an adjusting part for adjusting the longitudinal height of the transverse support beam (2) is provided on the support bracket (101); and the walkway vertical beam (3) is located on the transverse support beam (2).

2. A bridge drilling construction platform support frame as claimed in claim 1, characterized in that: A through opening (102) is provided on the side wall of the steel casing (1), the transverse support beam (2) is located in the through opening (102), and a reinforcing plate (1021) is provided on the outer periphery of the through opening (102) for securing the edge of the through opening (102).

3. A bridge drilling construction platform support frame as claimed in claim 2, characterized in that: The bottom edge of the through opening (102) is provided with a pad (103) for stabilizing the two ends of the transverse support beam (2).

4. A bridge drilling construction platform support frame as claimed in claim 3, characterized in that: There are two walkway vertical beams (3), and one end of the walkway vertical beam (3) is provided with a connecting plate (301) for connecting the walkway vertical beams (3) in two adjacent support members.

5. A bridge drilling construction platform support frame as claimed in claim 4, characterized in that: The transverse support beam (2) comprises a hollow outer shell beam (201) and two telescopic beams (202) movably arranged at both ends of the outer shell beam (201), one end of the telescopic beam (202) being arranged in the outer shell beam (201), and the other end extending out of the steel casing (1) through the through opening (102), and the walkway vertical beam (3) being arranged at one end of the telescopic beam (202) extending out of the steel casing (1).

6. A bridge drilling construction platform support frame as claimed in claim 5, characterized in that: Bolt connectors (203) for fixing the extension length of the telescopic beam (202) are provided at both ends of the outer casing beam (201).

7. A bridge drilling construction platform support frame as claimed in claim 6, characterized in that: The outer sleeve beam (201) is provided with two horizontal jacks (401) for providing telescopic power for the telescopic beam (202), and the tops of the two horizontal jacks (401) face in opposite directions.

8. A bridge drilling construction platform support frame as claimed in claim 7, characterized in that: A reaction seat (402) is arranged on the telescopic beam (202), and the reaction seat (402) is located at the top of the horizontal jack (401).

9. A bridge drilling construction platform support frame as claimed in claim 5, characterized in that: The support member comprises a longitudinal jack (403), the top of which is located below an end of the telescopic beam (202) extending out of the steel casing (1).

10. A bridge drilling construction platform support frame system, characterized in that: It comprises a plurality of bridge drilling construction platform support frames as described in any one of claims 1 to 9, and the walkway vertical beams (3) in two adjacent bridge drilling construction platform support frames are connected end to end to form an integral body.

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