Reinforced connecting plate connecting structure of steel arch

Abstract

The utility model relates to a reinforced connecting plate connecting structure of a steel arch, and relates to the technical field of steel structure reinforcement in tunnel engineering, the reinforced connecting plate connecting structure of the steel arch comprises a frame body and a connecting assembly, the frame body comprises a plurality of fixing parts, and every two adjacent fixing parts are connected through the connecting assembly; the connecting assembly comprises a first connecting plate and a second connecting plate, the first connecting plate is connected between the two adjacent fixing pieces, the second connecting plate is arranged on one side of the fixing pieces, and one side of the second connecting plate makes contact with the side walls of the two adjacent fixing pieces. The steel arch has the effects of improving the connecting strength of the steel arch and reducing fracture of the steel arch.

Description

Technical Field

[0001] This application relates to the field of steel structure reinforcement technology in tunnel engineering, and in particular to a reinforced connecting plate connection structure for steel arch frames. Background Technology

[0002] In tunnel construction, steel arches are typically used as support structures to ensure the stability and safety of the tunnel. However, in actual construction, due to the high pressure of the surrounding rock, traditional steel arch connection methods often fail to meet the high strength requirements, leading to loosening or even breakage at the connection points, which seriously affects the safety performance and service life of the tunnel. Therefore, improving the strength and stability of steel arch connection points has become an important research topic.

[0003] Under relevant technologies, the commonly used steel arch frame connection methods are mainly as follows: Bolt connection: Two steel plates are fixed together with bolts. This method is simple and easy to implement, but when subjected to greater surrounding rock pressure, the bolts are easily broken, especially the bolts on the left side which are under greater stress and are more prone to problems; Welding connection: Two steel plates are firmly connected by welding. Although the welding strength is high, the welding quality is difficult to guarantee under complex geological conditions, and post-weld maintenance is also difficult; Rivet connection: Steel plates are fixed with rivets. This connection method has high shear resistance and good sealing performance, but it also has the disadvantages of high cost and complex construction.

[0004] Regarding the aforementioned technologies, traditional connection methods such as bolt and rivet connections are prone to fatigue cracks at the connection points when facing high-pressure surrounding rock environments, leading to connection failure. Therefore, there is an urgent need for a structure that can improve the connection strength of steel arch frames and reduce steel arch frame fractures. Utility Model Content

[0005] In order to improve the connection strength of steel arch frames and reduce steel arch frame fractures, this application provides a reinforced connection plate connection structure for steel arch frames.

[0006] This application provides a reinforced connecting plate connection structure for a steel arch frame, which adopts the following technical solution:

[0007] A reinforced connecting plate connection structure for a steel arch frame includes a frame body and a connecting assembly. The frame body includes multiple fasteners, and adjacent fasteners are connected by the connecting assembly.

[0008] The connecting assembly includes a first connecting plate and a second connecting plate. The first connecting plate is connected between two adjacent fixing members, and the second connecting plate is disposed on one side of the fixing member. One side of the second connecting plate is in contact with the sidewalls of the two adjacent fixing members.

[0009] By adopting the technical scheme, the first connecting plate is arranged to fix the two adjacent fixing members, the second connecting plate is arranged close to the surrounding rock, when the fixing member far from the second connecting plate is subjected to pressure, the pressure is further transmitted to the second connecting plate from the fixing member, and the second connecting plate disperses the pressure, thereby reducing the stress concentration of single point and reducing the fracture phenomenon of the fixing member caused by the high-pressure surrounding rock environment.

[0010] Optionally, the fixing member has a first contact surface, the second connecting plate has a second contact surface, and the first contact surface is completely attached to the second contact surface.

[0011] By adopting the technical scheme, in order to further improve the support strength of the first connecting plate to the fixing member, the second connecting plate is in surface contact with the first connecting plate, thereby improving the support strength of the second connecting plate to the fixing member.

[0012] Optionally, two first connecting plates are arranged on each fixing member, and the two first connecting plates are arranged at two ends of the fixing member, the side of the first connecting plate close to the second connecting plate is arranged flush with the side of the fixing member close to the second connecting plate, the two adjacent first connecting plates are in contact, and the two adjacent first connecting plates are fixed by a first locking member.

[0013] By adopting the technical scheme, the first locking member is arranged to fix the two adjacent first connecting plates, thereby further fixing and connecting the two fixing members.

[0014] Optionally, the second connecting plate is detachably connected with the first connecting plate.

[0015] By adopting the technical scheme, the second connecting plate is detachably connected with the first connecting plate, thereby facilitating the installation and disassembly of the second connecting plate by personnel.

[0016] Optionally, the positioning assembly includes a first positioning member, the side of the first connecting plate close to the second connecting plate is connected with two first positioning members, the side of each first connecting plate close to the second connecting plate is provided with a first positioning slot for the first positioning member to pass through in a first direction, and the side of each first connecting plate close to the second connecting plate is provided with a second positioning slot for the first positioning member to slide in a second direction, the second direction is perpendicular to the first direction, and the first positioning slot is in communication with the second positioning slot.

[0017] By adopting the technical scheme, the first positioning groove is arranged on the first connecting plate, the first positioning member is arranged on the second connecting plate, the positioning of the second connecting plate relative to the adjacent two fixing members is realized through the cooperation of the first positioning member and the first positioning groove, the pressure applied by the fixing members to the second connecting plate is uniformly distributed, local stress concentration is avoided, and the stability and durability of the overall structure are effectively improved.

[0018] Optionally, the positioning assembly comprises a second positioning member, the first positioning member is provided with a first through groove in the first direction for sliding of the second positioning member in the first direction, and a third positioning groove is arranged in the second positioning groove wall in the first direction.

[0019] By adopting the technical scheme, when the first positioning member slides in the second direction in the second positioning groove, when the second contact surface of the first positioning member is completely matched with the first contact surface of the fixing member, it indicates that the first positioning plate is installed in place. In order to reduce the sliding of the first positioning plate in the second positioning groove, the second positioning member is arranged, when the first positioning member slides in the second direction, the second positioning member is located in the first through groove, when it is necessary to fix the first connecting plate and the second connecting plate, the first through groove corresponds to the third positioning groove, and the second positioning member slides in the first direction towards the side close to the third positioning groove, and the third positioning groove limits the sliding of the first positioning member in the second direction.

[0020] Optionally, the outer peripheral wall of the first positioning member is matched with the side wall of the third positioning groove.

[0021] By adopting the technical scheme, in order to further improve the stability between the second connecting plate and the first connecting plate, the outer peripheral wall of the first positioning member is matched with the side wall of the third positioning groove, so that the second positioning member is in a fixed state in the third positioning groove, and the stability of the connection between the second connecting plate and the first connecting plate is further ensured.

[0022] Optionally, the second positioning member comprises a first positioning section and a second positioning section connected integrally, the first positioning member is arranged on the side of the second positioning section close to the fixing member, the outer diameter of the first positioning section is greater than the outer diameter of the second positioning section, the first through groove comprises a first groove portion and a second groove portion, the inner diameter of the first groove portion is greater than the inner diameter of the second groove portion, the first positioning section is located in the first groove portion, one end of the second positioning section is located outside the second connecting plate, and the other end is fixedly connected to the first positioning section after sequentially penetrating through the second connecting plate and the second groove portion.

[0023] By adopting the technical scheme, the first groove part has a larger inner diameter than the second groove part, the second positioning member is limited by the second groove part from sliding out of the second mounting plate, a person holds the second positioning section, slides the second positioning section in the first direction, further drives the first positioning section to slide in the first direction, and the second positioning section is slid into the third positioning groove.

[0024] Optionally, the positioning assembly further comprises an elastic member, the elastic member is sleeved on the second positioning section, one end of the elastic member is fixedly connected to the groove wall of the first groove part, the other end of the elastic member is fixedly connected to one side of the first positioning section, and the elastic member has a force for driving the first positioning section to move towards the side close to the third positioning groove under recoverable deformation.

[0025] By adopting the technical scheme, the elastic member drives the first positioning section to slide towards the third positioning groove, and at the same time, when the pressure acts on the fixing member, the elastic member can buffer the pressure transmitted by the fixing member to the second connecting plate.

[0026] Optionally, the second connecting plate and the fixing member are fixedly connected through a second locking member.

[0027] By adopting the technical scheme, after the second connecting plate is installed on the first connecting plate, in order to further improve the stability between the second connecting plate and the fixing member, the second connecting plate is fixedly connected with the fixing member through the second locking member.

[0028] In summary, the present application has at least one of the following beneficial technical effects:

[0029] 1. The present application fixes the adjacent two fixing members by the first connecting plate, and the second connecting plate is arranged close to the surrounding rock side, when the fixing member far from the second connecting plate side is subjected to pressure, the pressure is further transmitted to the second connecting plate by the fixing member, the pressure is dispersed by the second connecting plate, thereby reducing the stress concentration of single point, and reducing the fracture phenomenon of the fixing member caused by high pressure surrounding rock environment;

[0030] 2. The present application realizes the positioning of the second connecting plate on the adjacent two fixing members by the positioning assembly, so that the stress is uniformly distributed on the second connecting plate. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is the overall structure schematic view of a reinforced connecting plate connecting structure of a steel arch support of the present application;

[0032] Figure 2 is a structure schematic view of the connection between the second connecting plate and the first connecting plate of the present application;

[0033] Figure 3is a structural schematic view of a positioning assembly of the present application;

[0034] Figure 4 is a structural schematic view of the present application Figure 3 is an enlarged view of part A in the present application;

[0035] Reference signs: 1, frame body; 11, fixing member; 111, first contact surface; 2, connecting assembly; 21, first connecting plate; 211, first locking member; 212, locking nut; 213, first positioning groove; 214, second positioning groove; 215, third positioning groove; 22, second connecting plate; 221, second contact surface; 3, positioning assembly; 31, first positioning member; 311, first through groove; 3111, first groove portion; 2112, second groove portion; 32, second positioning member; 321, first positioning section; 322, second positioning section; 33, elastic member; 4, second locking member. DETAILED DESCRIPTION

[0036] The following will be described in detail in combination with the accompanying Figures 1-4 The present application is further described in detail.

[0037] The embodiment of the present application discloses a reinforced connecting plate connecting structure of a steel arch support. Referring to Figure 1 , the reinforced connecting plate connecting structure of the steel arch support comprises a frame body 1 and a connecting assembly 2, the frame body 1 comprises a plurality of fixing members 11, and two adjacent fixing members 11 are connected through the connecting assembly 2. In the embodiment, the fixing member 11 is an I-beam, the connecting assembly 2 comprises a first connecting plate 21 and a second connecting plate 22, the first connecting plate 21 is connected between two adjacent fixing members 11, and the second connecting plate 22 is arranged on one side of the fixing member. One side of the second connecting plate 22 is in contact with the side walls of two adjacent fixing members 11. In actual working conditions, the side of the second connecting plate 22 close to the surrounding rock, so that the second connecting plate 22 is arranged. When the side of the fixing member 11 away from the second connecting plate 22 is subjected to pressure, the pressure is further transmitted to the second connecting plate 22 by the fixing member 11, and the pressure is dispersed by the second connecting plate 22, thereby reducing the stress concentration of a single point and reducing the fracture phenomenon of the fixing member 11 caused by the high-pressure surrounding rock environment.

[0038] Referring to Figure 1 , in order to further improve the supporting strength of the first connecting plate 21 to the fixing member 11, the fixing member 11 has a first contact surface 111, the second connecting plate 22 has a second contact surface 221, and the first contact surface 111 is completely attached to the second contact surface 221. That is, the second connecting plate 22 is in surface contact with the fixing member 11, so as to improve the supporting strength of the second connecting plate 22 to the fixing member 11.

[0039] Referring to Figure 1Each fixed part 11 is provided with two first connecting plates 21, and the two first connecting plates 21 are arranged at two ends of the fixed part 11. The side of the first connecting plate 21 close to the second connecting plate 22 is flush with the side of the fixed part 11 close to the second connecting plate 22. The two adjacent first connecting plates 21 are in contact, and the two adjacent first connecting plates 21 are fixed through a plurality of first locking parts 211. Specifically, the first locking part 211 is perpendicular to the first connecting plate 21. One end of the first locking part 211 passes through the two first connecting plates 21 in contact in sequence. The first locking part 211 is provided with a locking nut 212 in threaded connection, so as to fix the two first connecting plates 21 and further realize the connection of the two adjacent fixed parts 11.

[0040] With reference to Figure 1 In order to facilitate the installation of the second connecting plate 22, the second connecting plate 22 is detachably connected with the first connecting plate 21, so as to facilitate the personnel to install and dismount the second connecting plate 22.

[0041] With reference to Figure 2 In order to further make the pressure transmitted by the two adjacent fixed parts 11 to the first connecting plate 21 be uniformly distributed, the reinforced connecting plate connecting structure of the steel arch support further comprises a positioning assembly 3. The positioning assembly 3 comprises a first positioning part 31. The side of the first connecting plate 21 close to the second connecting plate 22 is connected with two first positioning parts 31. The side of each first connecting plate 21 close to the second connecting plate 22 is provided with a first positioning groove 213 for the first positioning part 31 to pass through along a first direction. The side of each first connecting plate 21 close to the second connecting plate 22 is provided with a second positioning groove 214 for the first positioning part 31 to slide along a second direction. The second direction is perpendicular to the first direction. The first positioning groove 213 is in communication with the second positioning groove 214. The end wall at the communication position of the second positioning groove 214 and the first positioning groove 213 is used to block the first positioning part 31 from sliding out to the outside of the second connecting plate 22 along the first direction. Through the arrangement of the first positioning part 31, the first positioning part 31 slides along the groove wall of the second positioning groove 214. Through the cooperation of the two positioning parts and the two second positioning grooves 214, the detachable connection of the first connecting plate 21 and the second connecting plate 22 is realized while the positioning of the first connecting plate 21 on the two adjacent fixed parts 11 is realized.

[0042] With reference to Figure 3 and Figure 4When the first positioning member 31 slides in the second direction in the second positioning groove 214, when the second contact surface 221 of the first positioning member 31 completely abuts the first contact surface 111 of the fixing member 11, it indicates that the first positioning plate is installed in place. In order to reduce the sliding of the first positioning plate in the second positioning groove 214, the positioning assembly 3 comprises a second positioning member 32, the first positioning member 31 is provided with a first through groove 311 for sliding of the second positioning member 32 in the first direction along the first direction, and the groove wall of the second positioning groove 214 of the first connecting plate 21 is provided with a third positioning groove 215 along the first direction. The first positioning member 31 slides into the third positioning groove 215 along the first direction. By arranging the second positioning member 32, when the first positioning member 31 slides in the second direction, the second positioning member 32 is located in the first through groove 311. When it is necessary to fix the first connecting plate 21 and the second connecting plate 22, the first through groove 311 corresponds to the third positioning groove 215, and the second positioning member 32 slides in the first direction towards the side close to the third positioning groove 215, so that the third positioning groove 215 limits the sliding of the first positioning member 31 in the second direction.

[0043] With reference to Figure 3 and Figure 4 , in order to further improve the stability between the second connecting plate 22 and the first connecting plate 21, the outer peripheral wall of the first positioning member 31 abuts the side wall of the third positioning groove 215, so that the second positioning member 32 is in a fixed state in the third positioning groove 215, further ensuring the stability of the connection between the second connecting plate 22 and the first connecting plate 21.

[0044] With reference to Figure 3 and Figure 4 , in order to facilitate the personnel to slide the second positioning member 32 to realize the fixation of the second connecting plate 22 and the first connecting plate 21, the second positioning member 32 comprises a first positioning section 321 and a second positioning section 322 connected integrally, the first positioning member 31 is arranged on the side of the second positioning section 322 close to the fixing member 11, and the outer diameter of the first positioning section 321 is greater than the outer diameter of the second positioning section 322. The first through groove 311 comprises a first groove portion 3111 and a second groove portion 2112 connected in communication, the first positioning section 321 is located in the first groove portion 3111, one end of the second positioning section 322 is located outside the second connecting plate 22, and the other end is fixedly connected to the first positioning section 321 after sequentially penetrating through the second connecting plate 22 and the second groove portion 2112. The inner diameter of the first groove portion 3111 is greater than the inner diameter of the second groove portion 2112, so as to limit the first positioning section 321 from sliding out to the outside of the second mounting plate by the second groove portion 2112; the personnel holds the second positioning section 322 and slides the second positioning section 322 in the first direction, further driving the first positioning section 321 to slide in the first direction, so as to slide the second positioning section 322 into the third positioning groove 215.

[0045] With reference to Figure 4In order to further buffer the pressure acting on the second connecting plate 22, the positioning assembly 3 further comprises an elastic member 33 sleeved on the second positioning section 322, one end of the elastic member 33 is fixedly connected to the groove wall of the first groove portion 3111, and the other end is fixedly connected to one side of the first positioning section 321, the elastic member 33 has a force to drive the first positioning section 321 to move towards the side close to the third positioning groove 215 under recoverable deformation, in the embodiment, the elastic member 33 is a compression spring, when the personnel slide the second positioning section 322 away from the side of the fixing member 11, the elastic member 33 is compressed, and the first positioning section 321 is located in the first groove portion 3111, when the personnel releases the second positioning section 322, the elastic member 33 recovers the deformation, drives the first positioning section 321 to slide towards the third positioning groove 215, ensures the stable connection, and the setting of the elastic member 33 effectively buffers the pressure.

[0046] With reference to Figure 3 In order to further improve the stability between the second connecting plate 22 and the fixing member 11, the second connecting plate 22 and the fixing member 11 are fixedly connected through the second locking member 4.

[0047] The implementation principle of the reinforced connecting plate connecting structure of the steel arch support of the embodiment of the application is as follows: the first connecting plate 21 of the adjacent two fixing members 11 is fixed through the first locking member 211, the second connecting plate 22 is installed on the side of the fixing member 11 facing the surrounding rock, so that the second contact surface 221 of the second connecting plate 22 is attached to the first contact surface 111 of the fixing member 11, and the installation mode is as follows: the personnel hold the second positioning section 322, slide the second positioning section 322 away from the side of the fixing member 11 along the first direction, so that the first positioning section 321 is completely located in the second groove portion 2112, insert the first mounting member into the second positioning groove 214 and slide along the second direction, realize the positioning of the second mounting plate on the fixing member 11, loosen the second positioning section 322 when the first groove portion 3111 and the third positioning groove 215 are aligned, so that the first positioning section 321 is located in the third positioning groove 215, and then lock and fix the second connecting plate 22 and the fixing member 11 through the second locking member 4.

[0048] The above are the preferred embodiments of the application, and do not limit the protection scope of the application, therefore: all equivalent changes made according to the structure, shape and principle of the application should be covered in the protection scope of the application.

Claims

1. A reinforcing connection plate connection structure of a steel arch, characterized by: The utility model provides a kind of shelf, including frame body (1) and connecting assembly (2), the frame body (1) includes multiple fixed parts (11), and the connecting assembly (2) is connected between two adjacent fixed parts (11). The connecting assembly (2) includes first connecting plate (21) and second connecting plate (22), the first connecting plate (21) is connected between two adjacent fixed parts (11), and the second connecting plate (22) is arranged on one side of the fixed part (11), and one side of the second connecting plate (22) is in contact with the side wall of two adjacent fixed parts (11).

2. A reinforced connector plate connection structure of a steel arch as claimed in claim 1, characterized in that: The fixed part (11) has a first contact surface (111), and the second connecting plate (22) has a second contact surface (221), and the first contact surface (111) is completely fitted with the second contact surface (221).

3. The reinforced connection plate connection structure of a steel arch support according to claim 1, characterized in that: Each fixed part (11) is provided with two first connecting plates (21), and the two first connecting plates (21) are located at the two ends of the fixed part (11), respectively, and the side of the first connecting plate (21) close to the second connecting plate (22) is flush with the side of the fixed part (11) close to the second connecting plate (22), the two adjacent first connecting plates (21) are in contact, and the two adjacent first connecting plates (21) are fixed by a first locking part (211).

4. The reinforced gusset plate connection of a steel arch as claimed in claim 1, wherein: The second connecting plate (22) and the first connecting plate (21) are detachably connected.

5. The reinforced gusset plate connection of a steel arch as claimed in claim 1, wherein: The utility model also includes a positioning assembly (3), the positioning assembly (3) includes a first positioning part (31), the side of the first connecting plate (21) close to the second connecting plate (22) is connected with two first positioning parts (31), the side of each first connecting plate (21) close to the second connecting plate (22) is provided with a first positioning slot (213) for the first positioning part (31) to pass through in a first direction, the side of each first connecting plate (21) close to the second connecting plate (22) is provided with a second positioning slot (214) for the first positioning part (31) to slide in a second direction, and the second direction is perpendicular to the first direction, and the first positioning slot (213) is communicated with the second positioning slot (214).

6. A reinforcing strap connection structure for a steel arch as claimed in claim 5, wherein: The positioning assembly (3) includes a second positioning part (32), the first positioning part (31) is provided with a first through slot (311) for the second positioning part (32) to slide in a first direction, and the second positioning slot (214) of the first connecting plate (21) is provided with a third positioning slot (215) in a first direction, and the first positioning part (31) slides in a first direction into the third positioning slot (215).

7. A reinforcing strap connection structure for a steel arch as claimed in claim 6, wherein: The outer peripheral wall of the first positioning part (31) is fitted with the side wall of the third positioning slot (215).

8. A reinforcing strap connection structure for a steel arch as defined in claim 6, wherein: The second positioning member (32) comprises a first positioning section (321) and a second positioning section (322) connected integrally, the first positioning member (31) is arranged on the side of the second positioning section (322) close to the fixing member (11), the outer diameter of the first positioning section (321) is greater than that of the second positioning section (322), the first through groove (311) comprises a first groove portion (3111) and a second groove portion (2112), the inner diameter of the first groove portion (3111) is greater than that of the second groove portion (2112), the first positioning section (321) is located in the first groove portion (3111), one end of the second positioning section (322) is located outside the second connecting plate (22), and the other end is fixedly connected to the first positioning section (321) after penetrating the second connecting plate (22) and the second groove portion (2112) in sequence.

9. A reinforcing strap connection structure for a steel arch as claimed in claim 8, characterised in that: The positioning assembly (3) further comprises an elastic member (33), the elastic member (33) is sleeved on the second positioning section (322), one end of the elastic member (33) is fixedly connected to the groove wall of the first groove portion (3111), the other end is fixedly connected to one side of the first positioning section (321), and the elastic member (33) has a force for driving the first positioning section (321) to move towards the side close to the third positioning groove (215) under recoverable deformation.

10. A reinforced connection plate connection structure of a steel arch support according to any one of claims 1 to 9, characterized in that: The second connecting plate (22) and the fixing member (11) are fixedly connected through a second locking member (4).

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