A socket steel plate support structure and support method

Abstract

The present invention relates to the technical field of bridge construction auxiliary devices, and proposes a socket steel plate type support structure and a support method, wherein the socket steel plate type support structure includes an upper steel bar embedded part and a lower steel bar embedded part, which are embedded in a concrete support; an upper support foot and a lower support foot, both of which are arranged in the concrete support at one end and extend out of the concrete support at the other end, and the lower support foot is arranged above the lower steel bar embedded part; a bracket, having a connecting end and a suspension end, the connecting end is connected to one end of the upper steel bar embedded part, and the connecting end abuts against the upper support foot; and a pressure rod, one end of which is connected to the lower support foot, and the other end is hinged to the suspension end of the bracket. Through the above technical scheme, the problems of small cantilever length, low bearing capacity, long construction period and high production cost of the support structure in the prior art are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge construction auxiliary devices, and in particular to a socket steel plate type supporting structure and a supporting method. Background Art

[0002] Leg brackets are widely used in high-altitude construction of bridges. High-altitude cast-in-place construction such as the No. 0 block of beam-type bridges, cast-in-place side spans, and middle beams are mostly constructed with corbel brackets. During the high-altitude cast-in-place construction process, the corbel bracket uses the pier column as the final force point, providing sufficient operating space for high-altitude operations on the pier top. The existing corbel support structure mainly includes a steel embedded part and two support parts connecting the steel embedded parts. The two support parts form a triangle to achieve the supporting function. Most of the corbel support structures need to prefabricate the various dimensions of the corbel support structure according to the construction force conditions, which leads to a long construction period; and most of the bridges are now prefabricated in the process of construction. After the piers are prefabricated, the steel embedded parts of the corbel structure are set on the piers, and then the support parts are installed. The required steel embedded parts are large and the production cost is high. Summary of the invention

[0003] The present invention provides a socket steel plate type support structure and a support method, which solve the problems of small cantilever length, low bearing capacity, long construction period and high production cost of the support structure in the related art.

[0004] The technical solution of the present invention is as follows:

[0005] A socket steel plate support structure, comprising

[0006] The upper steel bar embedded parts and the lower steel bar embedded parts are embedded in the concrete support;

[0007] The upper supporting foot and the lower supporting foot each have one end disposed in the concrete support and the other end extending out of the concrete support, and the lower supporting foot is disposed above the lower steel bar embedded part;

[0008] A bracket having a connecting end and a hanging end, wherein the connecting end is connected to one end of the upper steel bar embedded part and the connecting end abuts against the upper supporting leg; and

[0009] A pressure rod has one end connected to the lower supporting foot and the other end hinged to the suspended end of the bracket.

[0010] As a further technical solution, the upper support leg includes

[0011] An upper insertion part and an upper external leakage part, wherein the upper insertion part is used to be inserted into or uninserted into the concrete support, the upper external leakage part is a cross-shaped well frame structure, and the upper surface of the upper external leakage part is a plane.

[0012] As a further technical solution, the lower supporting leg includes a lower insertion part and a lower external leakage part, the lower insertion part is rectangular, and the axis of the lower insertion part is horizontal, the lower external leakage part has a hinge hole, the lower external leakage part is a U-shaped structure, and the angle between the axis of the lower external leakage part and the axis of the lower insertion part is an obtuse angle.

[0013] As a further technical solution, the upper supporting leg and the lower supporting leg both include a socket with a socket hole, the socket is buried in the concrete support, and the opening of the socket is flush with the surface of the concrete support, and the upper insertion part and the lower insertion part are respectively used to be inserted into the corresponding socket hole.

[0014] As a further technical solution, the upper steel bar embedded part is located above the upper supporting leg, and the upper steel bar embedded part includes.

[0015] A horizontal embedded part, one end of which is embedded in the concrete support and the other end of which extends out of the concrete support and is connected to the bracket; and

[0016] The longitudinal embedded parts are arranged in the concrete support and vertically cross-connected with the horizontal embedded parts.

[0017] As a further technical solution, it also includes

[0018] The middle steel bar embedded part is longitudinally arranged in the concrete support, and the upper supporting leg abuts against the top of the middle steel bar embedded part.

[0019] As a further technical solution, the bracket is connected by a plurality of I-beams, and the connecting end includes a first connecting part and a second connecting part, the first connecting part and the horizontal embedded part are connected into a whole through a gasket and a nut; the second connecting part is pressed against the upper supporting foot.

[0020] As a further technical solution, it also includes

[0021] A connecting rod, one end of which is connected to the bracket, close to one side of the second connecting portion, and the other end of which is connected to the middle of the pressure rod;

[0022] A cushion beam is arranged on the bracket, the length direction of the cushion beam is longitudinal, and the cushion beam is arranged in two groups, one group is located above the connecting end, and the other group is located above the hanging end, and each group has two cushion beams; and

[0023] A shoulder pole beam is arranged above each group of cushion beams, the length direction of the shoulder pole beam is horizontal, and a convex rod is arranged on the shoulder pole beam.

[0024] A supporting method using a socket steel plate type supporting structure comprises the following steps:

[0025] S1. Excavate and trim the calculated arch foot position on the mountain;

[0026] S2. Pour concrete. When pouring to the first depth, embed the lower steel bar embedded parts and the lower support legs until they solidify. Check the positions of the lower steel bar embedded parts and the lower support legs. The deviation is no more than 2 mm.

[0027] S3, continue pouring concrete, when pouring to the second depth, embed the middle steel bar embedded parts and the upper support legs until they solidify, check the positions of the middle steel bar embedded parts and the upper support legs, and the deviation is no more than 2mm;

[0028] S4, continue pouring concrete, when pouring to the third depth, embed the upper steel bar embedded parts, and extend part of the steel bars outside until they solidify, then continue pouring concrete, place the last section (Nth section) or the first section (1st section) of the segmented hanging arch, and continue pouring to the specified height, and the pouring is completed;

[0029] S5. Press the second connection part of the bracket against the upper support leg. At this time, the steel bars extending from the upper steel bar embedded part pass through the first connection part and are locked and fixed by gaskets and nuts. At the same time, rotate the pressure rod so that the hinge hole of the pressure rod is hinged with the lower support leg. The socket steel plate support structure is installed.

[0030] S6, the hanging arch in step S3 continues to install a section (N-1 section or 2 section) adjacent to the end or the first section, and the installation is repeated, and the hanging arches between the two mountains are installed synchronously, so that the two sections of the hanging arches forming the arc are close to each other until they are combined into a whole, and the erection of the hanging arch is completed;

[0031] S7. Install the end bridge between the mountain and the hanging arch, leaving the bridge section above the bracket empty to form a reserved opening;

[0032] S8. Place the hanger on the bracket, transfer the prefabricated bridge section from the reserved opening to the hanger, move the hanger, move the bridge section to the position to be assembled, install it in sections, and finally assemble the bridge section at the reserved opening. The overall installation of the bridge is completed.

[0033] The working principle and beneficial effects of the present invention are:

[0034] 1. The present invention first completes the erection of the hanging arch, then divides the bridge body into several bridge sections, and then hoists and splices the bridge sections, and adopts a socket steel plate type support structure to support the bridge sections, which is convenient for hoisting and moving the bridge sections. The socket steel plate type support structure is located below the hanging arch, and the socket steel plate type support structure is arranged on both upper bodies (the construction positions at both ends of the bridge measured), so that the bridge can be constructed from both ends to the middle at the same time, and the construction period is shortened to at least 75% of the original construction period, and the time of commissioning can be advanced;

[0035] 2. The concrete support is located below the hanging arch to avoid affecting the construction of the upper bridge. The part of the upper steel embedded part extending out of the concrete support is connected to the bracket, and the bottom of the bracket connection end is pressed against the upper supporting foot. One end of the pressure rod is hinged to the suspended end of the bracket, and the other end is hinged to the lower supporting foot, so that a stable triangular structure is formed between the pressure rod, the bracket and the concrete support, and the lower supporting foot is connected to the lower steel embedded part buried in the concrete support, which ensures the stability and firmness of the lower supporting foot. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0037] Figure 1 It is a schematic diagram of the structure of the present invention (the convex rod is not drawn);

[0038] Figure 2 This is a schematic diagram of the upper support leg structure of the present invention;

[0039] Figure 3 It is a side view of the structure of the present invention;

[0040] Figure 4 For the present invention Figure 3 A magnified view of the middle A area;

[0041] Figure 5 This is a front view of the structure of the present invention;

[0042] Figure 6 This is a schematic diagram of the lower support leg structure of the present invention;

[0043] Figure 7 It is a side view of the lower support leg structure of the present invention;

[0044] Figure 8 It is a top view of the structure of the present invention;

[0045] In the figure: 10, upper steel embedded parts, 11, horizontal embedded parts, 12, longitudinal embedded parts, 20, lower steel embedded parts, 30, concrete bearings, 40, upper supporting feet, 41, upper insertion part, 42, upper exposed part, 43, socket, 44, jack, 50, lower supporting feet, 51, lower insertion part, 52, lower exposed part, 53, hinge hole, 60, bracket, 60a, connecting end, 60b, hanging end, 61, I-beam, 62, first connecting part, 63, second connecting part, 64, gasket, 65, nut, 66, connecting rod, 67, pad beam, 68, shoulder beam, 69, convex rod, 70, compression rod, 80, middle steel embedded parts, c, bridge center line. DETAILED DESCRIPTION

[0046] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0047] Example 1

[0048] like Figures 1 to 8 As shown, this embodiment proposes a socket steel plate support structure, including

[0049] The upper steel bar embedded part 10 and the lower steel bar embedded part 20 are embedded in the concrete support 30;

[0050] The upper supporting leg 40 and the lower supporting leg 50 are both arranged at one end in the concrete support 30 and the other end extending out of the concrete support 30. The lower supporting leg 50 is arranged above the lower steel bar embedded part 20.

[0051] The bracket 60 has a connecting end 60a and a hanging end 60b, wherein the connecting end 60a is connected to one end of the upper steel bar embedded part 10, and the connecting end 60a abuts against the upper supporting leg 40; and

[0052] The pressure rod 70 has one end connected to the lower support leg 50 and the other end hinged to the suspension end 60 b of the bracket 60 .

[0053] In this embodiment, the length direction of the bridge is the horizontal direction, the width direction of the bridge is the longitudinal direction, and the gravity direction is the vertical direction. In order to solve the problems of small cantilever length of the supporting structure, low bearing capacity, long construction period and high production cost, a socket steel plate type supporting structure is designed. When the bridge is constructed at a position where it is inconvenient to build piers, such as a bridge between two mountains and a bridge where the sea level is too wide and the depth is too high, the construction process of the bridge at this position is extremely complicated. Taking the bridge between two mountains as an example, the present invention first completes the erection of the hanging arch, and then divides the bridge body into several bridge sections, and then hoists and splices the bridge sections, and uses the socket steel plate type supporting structure to support the bridge sections, which is convenient for the hoisting and movement of the bridge sections. The socket steel plate type supporting structure is located below the hanging arch, and two groups are provided, wherein the concrete support 30 is located below the hanging arch, and the upper steel embedded part 10 protrudes out of the concrete support 30 and is connected with the support The bracket 60 is connected, the bottom of the connecting end 60a of the bracket 60 is abutted and pressed against the upper supporting foot 40, and one end of the pressure rod 70 is hinged to the suspended end 60b of the bracket 60, and the other end is hinged to the lower supporting foot 50, so that a stable triangular structure is formed among the pressure rod 70, the bracket 60 and the concrete support 30, and the lower supporting foot 50 is connected to the lower steel embedded part 20 buried in the concrete support 30, which ensures the stability and firmness of the lower supporting foot 50, and then the hanger is placed on the bracket 60 through the hook of the external moving device, the bridge section is placed on the hanger and then the external moving device moves, driving the hanger to move the bridge section to the position to be installed, and socket steel plate support structures are arranged on the two upper bodies (the construction positions at the two ends of the bridge measured), so that the bridge can be constructed from both ends to the middle at the same time, and the construction period is shortened to at least 75% of the original construction period, and the time of commissioning can be advanced.

[0054] like Figure 1 to Figure 7 As shown, the upper support leg 40 includes

[0055] The upper insertion part 41 and the upper external leakage part 42, the upper insertion part 41 is used to be inserted into or uninserted into the concrete support 30, the upper external leakage part 42 is a cross-shaped cross frame structure, and the upper surface of the upper external leakage part 42 is a plane.

[0056] In this embodiment, in order to ensure the bearing capacity of the corbel support, the upper insertion portion 41 is inserted into or uninserted into the concrete support 30, which is very convenient. After the bracket 60 is placed on the upper external leakage portion 42, items are placed so that one end of the upper supporting leg 40 is subjected to the resistance of the concrete support 30, and the other end is subjected to the pressure of the bracket 60 and the objects on the bracket 60, thereby reaching a balanced and stable state. Due to the overall mass of the concrete support 30, the bearing capacity of the bracket 60 on the upper external leakage portion 42 is sufficient to meet engineering applications.

[0057] like Figure 1 to Figure 5As shown, the lower supporting foot 50 includes a lower insertion portion 51 and a lower external leakage portion 52, the lower insertion portion 51 is rectangular, and the axis of the lower insertion portion 51 is horizontal, the lower external leakage portion 52 has a hinge hole 53, the lower external leakage portion 52 is a U-shaped structure, and the angle between the axis of the lower external leakage portion 52 and the axis of the lower insertion portion 51 is an obtuse angle.

[0058] In this embodiment, in order to ensure the stability and bearing capacity of the lower supporting foot 50, the rectangular lower insertion portion 51 is inserted into the concrete support 30, so that the shear stress of the lower supporting foot 50 is increased, thereby ensuring its bearing capacity for the bracket 60. The connection position between the lower external leakage portion 52 and the lower insertion portion 51 is set inside the concrete support 30, avoiding the occurrence of stress concentration at the corner of this part, thereby further ensuring the stability of the lower supporting foot 50.

[0059] like Figure 1 to Figure 7 As shown, the upper supporting leg 40 and the lower supporting leg 50 both include a socket 43 having a socket 44. The socket 43 is buried in the concrete support 30, and the opening of the socket 44 is flush with the surface of the concrete support 30. The upper insertion portion 41 and the lower insertion portion 51 are respectively used to be inserted into the corresponding socket 44.

[0060] In this embodiment, in order to ensure the bearing capacity of the corbel support, a socket 43 is embedded at the corresponding installation position of the upper supporting leg 40 and the lower supporting leg 50 of the concrete support 30, one end of the socket 44 is blocked, and the opening of the other end is exposed on the surface of the concrete support 30, wherein the lower steel bar embedded part 20 is a longitudinally arranged steel bar bundle, which ensures that the socket 43 is firmly embedded in the concrete support 30, and the upper insertion part 41 of the upper supporting leg 40 is inserted into the socket 44 of the upper socket 43, and the lower insertion part 51 of the lower supporting leg 50 is inserted into the socket 44 of the lower socket 43, and then the bracket 60 is installed, so that the upper supporting leg 40 and the lower supporting leg 50 can transfer their hands to the concrete support 30, and the bearing capacity is strong. After use, the bracket 60 can be disassembled for recycling, and after the first connecting part 62 is removed, it can be directly moved outward to separate the device as a whole from the socket 43, that is, the concrete support 30, and the operation is simple.

[0061] like Figure 1 to Figure 4 As shown, the upper steel bar embedded part 10 is located above the upper supporting leg 40, and the upper steel bar embedded part 10 includes.

[0062] A horizontal embedded part 11, one end of which is embedded in the concrete support 30, and the other end of which extends out of the concrete support 30 and is connected to the bracket 60; and

[0063] The longitudinal embedded parts 12 are arranged in the concrete support 30 and vertically cross-connected with the horizontal embedded parts 11 .

[0064] In this embodiment, the horizontal embedded part 11 includes steel bars, embedded plates and sleeves connecting the two parts, wherein the length direction of the steel bars is horizontal, and the longitudinal embedded part 12 is a longitudinally arranged steel bar bundle. First, the longitudinal embedded part 12 and the steel bars of the horizontal embedded part 11 are welded and connected into a whole, and then the embedded plate and the sleeve are passed through the steel bars in the embedded part, and the part is placed at the designated embedded point and then cast, so that the embedded plate is located in the concrete support 30, and part of the steel bars extend out of the concrete support 30 to be connected to the bracket 60; this embedding method and the embedded high-strength steel bars 7 of the horizontal embedded part 11 can produce a certain amount of free deformation in the vertical direction, effectively eliminate the shear force of the node, and prevent the node from being damaged by shear. At the same time, it is ensured that the node only bears tensile force, making the node force more reliable and safer.

[0065] like Figure 1 to Figure 4 As shown, it also includes

[0066] The middle steel bar embedded part 80 is longitudinally arranged in the concrete support 30 , and the upper supporting leg 40 abuts against the top of the middle steel bar embedded part 80 .

[0067] In this embodiment, in order to ensure the stability and reliability of the upper supporting leg 40, a middle steel bar embedded part 80 is also provided. The middle embedded part 80 is a longitudinally arranged steel bar bundle, which is connected to the embedded part of the upper supporting leg 40, thereby preventing the upper supporting leg 40 from bending or breaking due to a large shear force, thereby improving the bearing capacity, and working together with the upper steel bar embedded part 10 and the lower steel bar embedded part 20 to ensure the bearing capacity and stability of the bracket 60.

[0068] like Figures 1 to 8 As shown, the bracket 60 is connected by a plurality of I-beams 61, and the connecting end 60a includes a first connecting portion 62 and a second connecting portion 63. The first connecting portion 62 and the horizontal embedded part 11 are connected as a whole via a gasket 64 and a nut 65; the second connecting portion 63 is pressed against the upper supporting leg 40.

[0069] In this embodiment, the bracket 60 is connected by a plurality of I-beams 61. After every two I-beams are arranged, they are welded with a connecting plate to form a column. A plurality of columns are welded or bolted to form the entire bracket 60. In order to ensure the stability and bearing capacity of the bracket 60, part of the steel bars extending from the concrete support 30 are reserved for connection with the first connecting portion 62 of the bracket 60. The first connecting portion 62 includes a plurality of partitions welded on the I-beam 61. The steel bars pass through the plurality of partitions and are then locked and fixed by gaskets 64 and nuts 65. The first connecting portion 62 is connected to the horizontal embedded part 11 as a whole, so that The bracket is fastened to one side of the concrete support 30; at the same time, the second connecting part 63 is pressed against the upper supporting foot 40 to support the bracket 60. The cooperation between the second connecting part 63 and the upper supporting foot 40 and the locking cooperation between the first connecting part 62 and the horizontal embedded part 11 make the installation of the bracket 60 stable and the bearing capacity is further improved. After the hanger is placed on the bracket 60, the horizontal embedded part 11, the upper supporting foot 40 and the lower supporting foot 50 connected to the pressure rod 70 work together to transfer the force exerted on the bracket 60 to the concrete support 30, thereby ensuring the stability and safety of the device.

[0070] like Figures 1 to 8 As shown, it also includes

[0071] A connecting rod 66, one end of which is connected to the bracket 60, close to one side of the second connecting portion 63, and the other end of which is connected to the middle of the pressing rod 70;

[0072] A cushion beam 67 is disposed on the bracket 60, wherein the length direction of the cushion beam 67 is longitudinal, and the cushion beam 67 is provided in two groups, one group is located above the connecting end 60a, and the other group is located above the hanging end 60b, and each group has two cushion beams 67; and

[0073] The shoulder-pole beam 68 is disposed above each group of the cushion beams 67 . The length direction of the shoulder-pole beam 68 is horizontal. A protruding rod 69 is disposed on the shoulder-pole beam 68 .

[0074] In this embodiment, in order to reduce the friction between the hanger and the brackets 60 of the two groups of socket steel plate support structures on the same mountain side during the transfer of the bridge section, a plurality of pad beams 67 are arranged on the bracket 60. The length direction of the pad beam 67 is longitudinal, and a horizontal shoulder beam 68 is arranged on the adjacent pad beam 67. The shoulder beam 68 greatly reduces the contact area between the bracket 69 and the hanger, and reduces the friction between the hanger and the socket steel plate support structure. After the shoulder beam 68 is used for a long time and receives considerable wear or is bent due to impact, the shoulder beam 68 can be replaced in time without being scrapped as a whole. The protruding rod 69 on the shoulder beam 68 is a short I-beam. After the hanger is placed on the shoulder beam 68 of the two groups of socket steel plate support structures, the protruding rod 69 is inserted into the gap of the hanger (a common type of rack) to ensure the stability of the hanger and avoid accidents caused by the hanger sliding when the bridge section is transferred from the mountain to the hanger. The overall operability is strong.

[0075] A supporting method using a socket steel plate type supporting structure comprises the following steps:

[0076] S1. Excavate and trim the calculated arch foot position on the mountain;

[0077] S2, pouring concrete, when pouring to the first depth, pre-embed the lower steel bar embedded part 20 and the lower support leg 50 until they solidify, and check the position of the lower steel bar embedded part 20 and the lower support leg 50, and the deviation is not more than 2mm;

[0078] S3, continue pouring concrete, when pouring to the second depth, pre-embed the middle steel bar embedded part 80 and the upper support leg 40 until they solidify, check the position of the middle steel bar embedded part 80 and the upper support leg 40, the deviation is not more than 2mm;

[0079] S4, continue pouring concrete, when pouring to the third depth, pre-embed the upper steel bar embedded part 10, and partially extend the steel bar outside until it solidifies, then continue pouring concrete, place the last section (Nth section) or the first section (1st section) of the segmented hanging arch, and continue pouring to the specified height, and pouring is completed;

[0080] S5. Press the second connection part 63 of the bracket 60 against the upper support leg 40. At this time, the steel bars extending from the upper steel bar embedded part 10 pass through the first connection part 62 and are locked and fixed by the gasket 64 and the nut 65. At the same time, rotate the pressure rod 70 so that the hinge hole of the pressure rod 70 is hinged with the lower support leg 50. The socket steel plate support structure is installed;

[0081] S6, the hanging arch in step S3 continues to install a section (N-1 section or 2 section) adjacent to the end or the first section, and the installation is repeated, and the hanging arches between the two mountains are installed synchronously, so that the two sections of the hanging arches forming the arc are close to each other until they are combined into a whole, and the erection of the hanging arch is completed;

[0082] S7. Install the end bridge between the mountain and the hanging arch, leaving the bridge section above the bracket empty to form a reserved opening;

[0083] S8. Place a hanger on the bracket 60, transfer the prefabricated bridge segments from the reserved opening to the hanger, move the hanger, move the bridge segments to the position to be assembled (the pull ropes on the hanging arch are pulled together with the bridge segments), install them in sections (adjacent bridge segments are meshed), and finally assemble the bridge segments at the reserved opening, and the overall installation of the bridge is completed.

[0084] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A socket steel plate support structure, characterized in that: include The upper steel bar embedded part (10) and the lower steel bar embedded part (20) are embedded in the concrete support (30); An upper supporting leg (40) and a lower supporting leg (50), each having one end disposed in the concrete support (30) and the other end extending out of the concrete support (30); the lower supporting leg (50) being disposed above the lower steel bar embedded part (20); A bracket (60) having a connecting end (60a) and a hanging end (60b), wherein the connecting end (60a) is connected to one end of the upper steel bar embedded part (10), and the connecting end (60a) abuts against the upper supporting leg (40); and A pressure rod (70), one end of which is connected to the lower support foot (50), and the other end of which is hingedly connected to the suspended end (60b) of the bracket (60); The upper supporting foot (40) comprises an upper insertion portion (41) and an upper external leakage portion (42), wherein the upper insertion portion (41) is used to be inserted into or uninserted into the concrete support (30), the upper external leakage portion (42) is a cross-shaped cross-frame structure, and the upper surface of the upper external leakage portion (42) is a plane; The lower supporting foot (50) comprises A lower insertion portion (51) and a lower external leakage portion (52), wherein the lower insertion portion (51) is rectangular, and the axis of the lower insertion portion (51) is horizontal, the lower external leakage portion (52) has a hinge hole (53), the lower external leakage portion (52) is a U-shaped structure, and the angle between the axis of the lower external leakage portion (52) and the axis of the lower insertion portion (51) is an obtuse angle; The upper supporting leg (40) and the lower supporting leg (50) both comprise a socket (43) having a plug hole (44); the socket (43) is buried in the concrete support (30), and the opening of the plug hole (44) is flush with the surface of the concrete support (30); the upper inserting portion (41) and the lower inserting portion (51) are respectively used to be inserted into the corresponding plug hole (44); The upper steel bar embedded part (10) is located above the upper supporting leg (40), and the upper steel bar embedded part (10) comprises a horizontal embedded part (11), one end of which is embedded in the concrete support (30) and the other end of which extends out of the concrete support (30) and is connected to the bracket (60); and A longitudinal embedded part (12) is arranged in the concrete support (30) and is vertically cross-connected with the horizontal embedded part (11); The bracket (60) is formed by connecting a plurality of I-beams (61), and the connecting end (60a) comprises a first connecting portion (62) and a second connecting portion (63), the first connecting portion (62) and the horizontal embedded part (11) being connected to form a whole via a gasket (64) and a nut (65); the second connecting portion (63) is pressed against the upper supporting leg (40).

2. The socket steel plate support structure according to claim 1, characterized in that: Also includes The middle steel bar embedded part (80) is longitudinally arranged in the concrete support (30), and the upper support leg (40) abuts against the top of the middle steel bar embedded part (80).

3. The socket steel plate support structure according to claim 1, characterized in that: Also includes A connecting rod (66), one end of which is connected to the bracket (60) near one side of the second connecting portion (63), and the other end of which is connected to the middle of the pressure rod (70); a cushion beam (67) disposed on the bracket (60); the length direction of the cushion beam (67) is longitudinal; and the cushion beam (67) is provided in two groups, one group being located above the connecting end (60a) and the other group being located above the hanging end (60b); each group having two cushion beams (67); and A shoulder pole beam (68) is arranged above each group of cushion beams (67); the length direction of the shoulder pole beam (68) is a horizontal direction; and a protruding rod (69) is arranged on the shoulder pole beam (68).

4. A supporting method using the socket steel plate type supporting structure according to claim 3, characterized in that: The following steps are involved: S1. Excavate and trim the calculated arch foot position on the mountain; S2, pouring concrete, when pouring to the first depth, pre-embed the lower steel bar embedded part (20) and the lower support leg (50) until they solidify, and checking the position of the lower steel bar embedded part (20) and the lower support leg (50), and the deviation is not greater than 2 mm; S3, continue pouring concrete, when pouring to the second depth, embed the middle steel bar embedded part (80) and the upper support leg (40) until they solidify, and check the position of the middle steel bar embedded part (80) and the upper support leg (40), and the deviation is not more than 2mm; S4, continue pouring concrete, when pouring to the third depth, pre-embed the upper steel bar embedded part (10), part of the steel bar is extended outward until it solidifies, then continue pouring concrete, place the last section or the first section of the segmented hanging arch, and continue pouring to the specified height, and pouring is completed; S5. The second connection portion (63) of the bracket (60) is pressed against the upper support leg (40). At this time, the steel bars extending from the upper steel bar embedded part (10) pass through the first connection portion (62) and are locked and fixed by the gasket (64) and the nut (65). At the same time, the pressure rod (70) is rotated so that the hinge hole of the pressure rod (70) is hinged to the lower support leg (50). The installation of the socket steel plate support structure is completed. S6, the hanging arch in step S3 continues to be installed with a section adjacent to the end or the first section, and the installation is repeated, and the hanging arches between the two mountains are installed synchronously, so that the two sections of the hanging arches forming the arc are close to each other until they are combined into a whole, and the erection of the hanging arch is completed; S7. Install the end bridge between the mountain and the hanging arch, leaving the bridge section above the bracket empty to form a reserved opening; S8, placing a hanger on the bracket (60), transferring the prefabricated bridge segments from the reserved opening to the hanger, moving the hanger, moving the bridge segments to the position to be assembled, and installing them in sections. Finally, assembling the bridge segments at the reserved opening, the overall installation of the bridge is completed.

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