A super-large section steel bar anti-overturning limit steel arch frame

Abstract

The present application relates to the field of steel arch frames, and in particular to an anti-overturning and limiting steel arch frame with super-large cross-section steel bars, comprising a plurality of brackets and steel bars, wherein the plurality of brackets are spliced ​​together by a connecting mechanism, wherein the connecting mechanism comprises a connecting assembly and a supporting assembly, wherein the connecting assembly connects two adjacent brackets, wherein the supporting assembly is installed in the connecting assembly, and the supporting assembly is used to support the brackets, and wherein the plurality of brackets are spliced ​​together to form an arch-shaped arch frame, and wherein the plurality of arch frames are arranged along the length direction of the steel bars, and wherein the steel bars are connected to a plurality of groups of arch frames. The present application improves the problem of instability of steel arch frames in traditional methods, and can achieve the effect of improving the stability of the steel arch frames.

Description

Technical Field

[0001] The present application relates to the field of steel arch frames, and in particular to an anti-overturning and limiting steel arch frame with super-large cross-section steel bars. Background Art

[0002] With the rapid development of the national economy, the traffic volume on inter-city trunk lines, urban expressways and national trunk roads in developed areas has increased rapidly, resulting in the emergence of two-way eight-lane highway tunnels, which are super-large section tunnels.

[0003] For tunnel surrounding rock, especially large-section tunnels with complex geological conditions, on the one hand, they are subjected to complex geostress, and on the other hand, excavation causes stress concentration and stress redistribution, causing damage to surrounding rock in a certain range and forming a loose circle. Usually, during the excavation of the tunnel, steel arches are used to support the tunnel.

[0004] However, in the traditional method, the steel arch frame is usually welded by welding several I-beams to form an arch frame. However, for a large span section such as a tunnel, the steel arch frame formed by welding has a large span, and the surrounding rock is easy to loosen during the tunnel excavation process, causing some rock blocks to fall on the arch frame, which can easily cause the welding parts of the arch frame to break, thereby affecting the stability of the steel arch frame. Summary of the invention

[0005] In order to improve the stability of the steel arch frame, the present application provides an anti-overturning and limiting steel arch frame with super-large cross-section steel bars.

[0006] The present application provides a super-large section steel bar anti-overturning limit steel arch frame, which adopts the following technical solution: A super-large section steel bar anti-overturning limiting steel arch frame includes a plurality of brackets and steel bars. The plurality of brackets are spliced ​​together by a connecting mechanism. The connecting mechanism includes a connecting assembly and a supporting assembly. The connecting assembly connects two adjacent brackets. The supporting assembly is installed in the connecting assembly, and the supporting assembly is used to support the brackets. The plurality of brackets are spliced ​​together to form an arched arch frame, and the plurality of arch frames are arranged along the length direction of the steel bars, and the steel bars are connected to a plurality of groups of arch frames.

[0007] By adopting the above technical solution, a number of brackets are spliced ​​together to form an arch frame by using the connecting components in the connecting mechanism, and the brackets are supported by the supporting components. As a result, when rock blocks fall on the arch frame during tunnel excavation, the impact of the falling rock blocks can be buffered by the supporting components and the connecting components between the brackets, thereby reducing the breakage of the steel arch frame, thereby facilitating improving the stability of the steel arch frame.

[0008] In a specific possible implementation scheme, the connecting assembly includes a connecting sleeve and a connecting bolt, both ends of the connecting sleeve are provided with connecting grooves, the connecting grooves are used for the bracket to be plugged in, the connecting bolt is used to pass through the connecting sleeve and the side wall of the bracket, the support assembly is installed in the connecting sleeve, and the support assembly is connected to the bracket.

[0009] By adopting the above technical solution, the connecting sleeve is installed on the bracket by inserting the end of one bracket into the connecting groove at one end of the connecting sleeve, and then connecting the bracket and the connecting sleeve through a connecting bolt. Then, the end of another bracket is inserted into the connecting groove at the other end of the connecting sleeve, and then the bracket and the connecting sleeve are connected through a connecting bolt, thereby completing the splicing of the arch frame.

[0010] In a specific feasible implementation scheme, the support assembly includes a first support plate, a second support plate, a first support rod, a second support rod and a reset member, the first support plate is installed in a connecting sleeve and is located at one end of the connecting sleeve, one end of the first support rod is installed on the first support plate, and the other end extends toward an end of the connecting sleeve away from the first support plate, and the end of the first support rod away from the first support plate extends into a connecting groove, the second support plate is installed in the connecting sleeve and is located at the other end of the connecting sleeve, one end of the second support rod is installed on the second support plate, and the other end extends toward an end of the connecting sleeve away from the second support plate, and the end of the second support rod away from the second support plate extends into the connecting groove, and the first support rod and the second support rod are in a cross shape, the reset member is installed in the connecting sleeve, and the first support plate and the second support plate are both connected to the reset member.

[0011] By adopting the above technical solution, when the end of one of the brackets is inserted into the connection groove at the end of the connecting sleeve, the upper end of the bracket contacts the end of the first support rod, and the first support rod is pressed down, so that the first support rod pushes the first support plate and compresses the reset member, thereby supporting one of the brackets through the first support rod. When the end of the other bracket is inserted into the connection groove at the other end of the connecting sleeve, the upper end of the bracket contacts the end of the second support rod, thereby pressing the second support rod downward, and the second support rod pushes the second support plate and compresses the reset member, so that the second support rod supports the end of the bracket, thereby facilitating the stability of the spliced ​​brackets.

[0012] In a specific feasible implementation scheme, a positioning rod is also installed in the connecting sleeve, and the positioning rod is located at the intersection of the first support rod and the second support rod, and the positioning rod passes through the first support rod and the second support rod, and the first support rod is provided with a first sliding groove for the positioning rod to slide, and the second support rod is provided with a second sliding groove for the positioning rod to slide.

[0013] By adopting the above technical solution, when the bracket presses the first support rod, the first support rod slides relative to the positioning rod, so that the positioning rod slides in the first slide groove, so that the first support rod can push the first support plate to move. When the bracket presses the second support rod, the second support rod slides relative to the positioning rod, so that the positioning rod slides in the second slide groove, so that the second support rod can push the second support plate to move.

[0014] In a specific implementation scheme, the reset member includes a first spring and a second spring, both of which are installed in the connecting sleeve, and the first spring is also connected to the first support plate, and one end of the second spring is connected to the second support plate.

[0015] By adopting the above technical solution, when the first support rod pushes the first support plate, the first support plate compresses the first spring, so that the first spring applies a thrust to the first support plate, thereby facilitating the first support rod to support the bracket. When the second support rod pushes the second support plate, the second support plate compresses the second spring, so that the second spring applies a thrust to the second support plate, thereby facilitating the second support rod to support the bracket.

[0016] In a specific implementation scheme, a first contact round head is installed at one end of the first support rod away from the support plate, and the first contact round head is used to contact the bracket. A second contact round head is installed at one end of the second support rod away from the support plate, and the second contact round head is used to contact the bracket.

[0017] By adopting the above technical solution, by providing the first abutting round head, it is convenient to abut the bracket through the first abutting round head, and the arc surface of the first abutting round head reduces the contact area between the first support rod and the bracket, thereby reducing the friction between the first support rod and the bracket. By providing the second abutting round head, it is convenient to abut the bracket through the second abutting round head, and the arc surface of the second abutting round head reduces the contact area between the second support rod and the bracket, thereby reducing the friction between the second support rod and the bracket.

[0018] In a specific possible implementation manner, it further comprises reinforcing bars, which are arched and installed on the steel bars.

[0019] By adopting the above technical solution and setting reinforcing ribs, the supporting strength of the steel arch frame can be easily improved.

[0020] In a specific possible implementation scheme, the connecting mechanism also includes a reinforcement assembly, which includes a front reinforcement frame, a rear reinforcement frame and a reinforcement bolt, the front reinforcement frame is installed on one side of the bracket, and one end of the front reinforcement frame also extends to the connecting sleeve, and the rear reinforcement frame is symmetrically installed on the other side of the bracket, the reinforcement bolt passes through the front reinforcement frame and the rear reinforcement frame in turn, and the front reinforcement frame and the rear reinforcement frame are both threadedly connected to the reinforcement bolt, and the reinforcement bolt is used to lock the front reinforcement frame and the rear reinforcement frame.

[0021] By adopting the above technical solution, by setting up the front reinforcement frame and the rear reinforcement frame, it is convenient to clamp the connecting part of the bracket and the connecting sleeve through the front reinforcement frame and the rear reinforcement frame, and position it through the reinforcement bolts, so as to facilitate maintaining the stability of the connection between the connecting sleeve and the bracket.

[0022] In summary, the present application includes at least one of the following beneficial effects: 1. The present application sets up a connecting mechanism, which facilitates the splicing of several brackets to form an arch frame through the connecting components in the connecting mechanism, and supports the brackets through the supporting components, thereby reducing the situation in which the welding parts of the steel arch frame are easily impacted and broken in the traditional welding method, thereby facilitating improving the stability of the steel arch frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the super-large section steel bar anti-overturning steel arch frame of this application.

[0024] Figure 2 It is a structural schematic diagram of the connecting mechanism in the embodiment of the present application.

[0025] Figure 3 It is a cross-sectional view of the connecting sleeve in the embodiment of the present application.

[0026] Figure 4 It is a schematic diagram of the bracket and the connecting sleeve when they are separated in the embodiment of the present application.

[0027] Figure 5 It is an exploded view of the reinforcement component in the embodiment of the present application.

[0028] Description of reference numerals: 1. Bracket; 2. Steel bar; 3. Connecting mechanism; 31. Connecting assembly; 311. Connecting sleeve; 3111. Connecting groove; 3112. Tightening groove; 3113. First mounting groove; 3114. Second mounting groove; 312. Connecting bolt; 32. Support assembly; 321. First supporting plate; 322. Second supporting plate; 323. First supporting rod; 3231. First sliding groove; 324. Second supporting rod; 3241. Second sliding groove; 325. First spring; 326. Second spring; 327. Positioning rod; 33. Reinforcement assembly; 331. Front reinforcement frame; 332. Rear reinforcement frame; 333. Reinforcement bolt; 4. Reinforcement ribs. DETAILED DESCRIPTION

[0029] The present application is further described in detail below in conjunction with the accompanying drawings.

[0030] The present application embodiment discloses a super-large section steel bar anti-overturning limit steel arch frame, referring to Figure 1 and Figure 2 , including a plurality of brackets 1, a plurality of steel bars 2 and a plurality of reinforcing bars 4, the plurality of brackets 1 are divided into a plurality of groups, each group has at least two brackets 1, at least two brackets 1 in each group are spliced ​​by a connecting mechanism 3, and an arched arch frame is formed after splicing, the plurality of steel bars 2 are welded to the plurality of groups of arch frames, and each steel bar 2 is connected to the plurality of arch frames, and the plurality of steel bars 2 are arranged along the arch frame formed by splicing the brackets 1. The reinforcing bars 4 are also arched, and the reinforcing bars 4 are installed on the steel bars 2 by welding, and each reinforcing bar 4 is located on the side of the plurality of steel bars 2 away from the bracket 1, and the plurality of reinforcing bars 4 are arranged along the length direction of the steel bars 2.

[0031] Reference Figure 2 and Figure 3 The bracket 1 is an I-beam, and each bracket 1 is arc-shaped. At least two brackets 1 are spliced ​​to form an arched structure, and the connecting mechanism 3 includes a connecting component 31 and a supporting component 32. The connecting component 31 includes a connecting sleeve 311 and a connecting bolt 312. The connecting sleeve 311 is also arc-shaped, and the curvature of the connecting sleeve 311 is the same as that of the bracket 1. Figure 2 and Figure 4 , and connecting grooves 3111 are opened at both ends of the connecting sleeve 311, the connecting grooves 3111 are used for the bracket 1 to be plugged in, and the connecting bolt 312 is threadedly installed on the connecting sleeve 311, and the connecting bolt 312 passes through the side wall of the connecting sleeve 311 and the side wall of the bracket 1, and the connecting bolt 312 is threadedly connected to the connecting sleeve 311, and the connecting sleeve 311 and the bracket 1 are positioned by the connecting bolt 312.

[0032] Reference Figure 3 and Figure 4The supporting assembly 32 includes a first supporting plate 321, a second supporting plate 322, a first supporting rod 323, a second supporting rod 324 and a reset member. A tightening groove 3112 is provided on the inner wall of the connecting sleeve 311. The tightening groove 3112 is arranged along the arc direction of the connecting sleeve 311, and the tightening groove 3112 connects the connecting grooves 3111 at both ends of the connecting sleeve 311 to each other. A first mounting groove 3113 and a second mounting groove 3114 are also provided on the groove bottom wall of the connecting sleeve 311 located at the tightening groove 3112. The first mounting groove 3113 and the second mounting groove 3114 are both arranged along the arc direction of the connecting sleeve 311, and the first mounting groove 3113 and the second mounting groove 3114 are located on the same arc. The first supporting plate 321 is slidably installed in the first mounting groove 3113. One end of the first supporting rod 323 is hinged to the first supporting plate 321, and the other end extends toward the direction of the connecting groove 3111 close to the second mounting groove 3114. The second support plate 322 is slidably installed in the second mounting groove 3114, and one end of the second support rod 324 is hinged to the second support plate 322, and the other end of the second support rod 324 extends in the direction of the connecting groove 3111 close to the first mounting groove 3113, and the first support rod 323 and the second support rod 324 are in a cross shape, and the first support rod 323 and the second support rod 324 are both located in the tightening groove 3112, and a positioning rod 327 is also fixedly installed on the inner wall of the tightening groove 3112 at the intersection of the first support rod 323 and the second support rod 324, a first sliding groove 3231 for the positioning rod 327 to slide is opened on the side wall of the first support rod 323, and a second sliding groove 3241 for the positioning rod 327 to slide is also opened on the side wall of the second support rod 324.

[0033] Reference Figure 3 and Figure 4 The reset member includes a first spring 325 and a second spring 326. The first spring 325 is installed in the first installation groove 3113 and is located at one end of the first support plate 321 away from the second support plate 322. One end of the first spring 325 abuts against the inner wall of the first installation groove 3113, and the other end abuts against the end of the first support plate 321. The second spring 326 is installed in the second installation groove 3114 and is located at one end of the second support plate 322 away from the first support plate 321. One end of the second spring 326 abuts against the inner wall of the second installation groove 3114, and the other end abuts against the end of the second support plate 322.

[0034] Reference Figure 4 A first contact round head is fixedly installed on one end of the first support rod 323 away from the first mounting plate, and the first contact round head is used to contact the side wall of the bracket 1. A second contact round head is also fixedly installed on one end of the second support rod 324 away from the second mounting plate, and the second contact round head is used to contact the side wall of the support frame located in the connecting groove 3111.

[0035] Reference Figure 3 and Figure 4 , by respectively inserting the two brackets 1 into the connecting grooves 3111 at both ends of the connecting sleeve 311, the side wall of the upper end of the bracket 1 located in the connecting groove 3111 can contact the first contact round head on the first support rod 323, so that the first support rod 323 pushes the first support plate 321, and the first support rod 323 slides relative to the positioning rod 327 through the first sliding groove 3231, so that the other end of the first support rod 323 pushes the first support plate 321 to slide in the first installation groove 3113, so that the first support plate 321 pushes the first spring 325, so that the end of the first support rod 323 away from the first support plate 321 can press against the side wall of the bracket 1 located in the connecting groove 3111, thereby supporting the bracket 1. At the same time, another bracket 1 abuts against the second abutting round head on the second support rod 324 located at the other end of the connecting sleeve 311, so that the second support rod 324 pushes the second support plate 322 to slide in the second mounting groove 3114 and compresses the second spring 326, so that the second support rod 324 slides relative to the positioning rod 327 through the second slide groove 3241, so that the end of the second support rod 324 away from the second support plate 322 abuts against the bracket 1, thereby supporting the end of the bracket 1 located in the connecting sleeve 311. Then, the connecting bolt 312 passes through the side wall of the connecting sleeve 311, and the connecting bolt 312 passes through the side wall of the bracket 1 located in the connecting sleeve 311, so that the bracket 1 is connected to the connecting sleeve 311.

[0036] Reference Figure 2 and Figure 5 A reinforcement component 33 is also installed on the bracket 1 at the connection position between the bracket 1 and the connecting sleeve 311. The reinforcement component 33 includes a front reinforcement frame 331, a rear reinforcement frame 332 and a reinforcement bolt 333. The front reinforcement frame 331 is arranged on one side of the bracket 1, and one end of the front reinforcement frame 331 is detachably mounted on the side wall of the connecting sleeve 311, and the other end of the front reinforcement frame 331 extends to the bracket 1 and presses the bracket 1, and the rear reinforcement frame 332 is symmetrically mounted on the bracket 1 with the front reinforcement frame 331, and the reinforcement bolt 333 is threadedly mounted on the front reinforcement frame 331, and the reinforcement bolt 333 is also threadedly connected to the rear reinforcement frame 332, and the reinforcement bolt 333 is used to lock the front reinforcement frame 331 and the rear reinforcement frame 332.

[0037] The working principle of the embodiment of the present application is as follows: at least two brackets 1 are spliced ​​together to form an arched arch frame, and two adjacent brackets 1 are connected by a connecting mechanism 3, so that the end of one of the brackets 1 is inserted into the connecting groove 3111 at one end of the connecting sleeve 311, so that the inner top wall on one side of the bracket 1 contacts the first support rod 323, so that the first support rod 323 pushes the first support plate 321 to move away from the second support plate 322 and compresses the first spring 325, so that the first spring 325 applies a force to the first support plate 321, so that the first support rod 323 on the first support plate 321 contacts the bracket 1, thereby supporting the bracket 1, and then the connecting bolt 312 passes through the side wall of the bracket 1 and the connecting sleeve 311, so as to position the bracket 1 on the connecting sleeve 311. Then, an adjacent bracket 1 is inserted into the connecting groove 3111 at the other end of the connecting sleeve 311, so that the bracket 1 contacts the second support rod 324, so that the second support rod 324 pushes the second support plate 322 to move in the direction away from the first support plate 321, so that the second support plate 322 compresses the second spring 326, so that the second spring 326 applies a reaction force to the second support plate 322, so that the second support plate 322 transmits the force to the second support rod 324, so that the second support rod 324 presses against the bracket 1, thereby supporting the bracket 1, and then a connecting bolt 312 is passed through the connecting sleeve 311 and the bracket 1, so that the bracket 1 is positioned on the connecting sleeve 311, and finally the connecting part of the connecting sleeve 311 and the bracket 1 is reinforced by the reinforcement component 33.

[0038] Finally, several groups of arch frames are installed according to the above steps, and several steel bars 2 are welded to the several groups of arch frames so that each steel bar 2 is connected to the several groups of arch frames, and finally the reinforcing bars 4 are welded to the steel bars 2 to complete the installation of the steel arch frames.

[0039] The above are preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An oversized steel bar anti-overturning limit steel arch frame, characterized in that: The invention comprises a plurality of brackets (1) and steel bars (2), wherein the plurality of brackets (1) are spliced ​​together via a connecting mechanism (3), wherein the connecting mechanism (3) comprises a connecting assembly (31) and a supporting assembly (32), wherein the connecting assembly (31) connects two adjacent brackets (1), wherein the supporting assembly (32) is installed in the connecting assembly (31), and wherein the supporting assembly (32) is used to support the brackets (1), wherein the plurality of brackets (1) are spliced ​​together to form an arched arch frame, wherein the arch frames are arranged along the length direction of the steel bars (2), and wherein the steel bars (2) are connected to a plurality of groups of arch frames.

2. The super-large section steel bar anti-overturning limiting steel arch frame according to claim 1 is characterized in that: The connecting assembly (31) comprises a connecting sleeve (311) and a connecting bolt (312); both ends of the connecting sleeve (311) are provided with connecting grooves (3111); the connecting grooves (3111) are used for the bracket (1) to be plugged in; the connecting bolt (312) is used for passing through the connecting sleeve (311) and the side wall of the bracket (1); the supporting assembly (32) is installed in the connecting sleeve (311), and the supporting assembly (32) is connected to the bracket (1).

3. The super-large section steel bar anti-overturning limiting steel arch frame according to claim 2 is characterized in that: The support assembly (32) comprises a first support plate (321), a second support plate (322), a first support rod (323), a second support rod (324) and a reset member, wherein the first support plate (321) is installed in the connecting sleeve (311) and is located at one end of the connecting sleeve (311), one end of the first support rod (323) is installed on the first support plate (321), and the other end extends toward the end of the connecting sleeve (311) away from the first support plate (321), and the end of the first support rod (323) away from the first support plate (321) extends to the connecting groove (3111), and the second support plate (3 22) is installed in the connecting sleeve (311) and is located at the other end of the connecting sleeve (311), one end of the second support rod (324) is installed on the second support plate (322), and the other end extends toward the end of the connecting sleeve (311) away from the second support plate (322), and the end of the second support rod (324) away from the second support plate (322) extends into the connecting groove (3111), and the first support rod (323) and the second support rod (324) are in a cross shape, the reset member is installed in the connecting sleeve (311), and the first support plate (321) and the second support plate (322) are both connected to the reset member.

4. The super-large section steel bar anti-overturning limiting steel arch frame according to claim 3 is characterized in that: A positioning rod (327) is also installed in the connecting sleeve (311). The positioning rod (327) is located at the intersection of the first support rod (323) and the second support rod (324), and the positioning rod (327) passes through the first support rod (323) and the second support rod (324). The first support rod (323) is provided with a first sliding groove (3231) for the positioning rod (327) to slide, and the second support rod (324) is provided with a second sliding groove (3241) for the positioning rod (327) to slide.

5. The super-large section steel bar anti-overturning limiting steel arch frame according to claim 3 is characterized in that: The reset member comprises a first spring (325) and a second spring (326), wherein the first spring (325) and the second spring (326) are both installed in the connecting sleeve (311), and the first spring (325) is also connected to the first support plate (321), and one end of the second spring (326) is connected to the second support plate (322).

6. The super-large section steel bar anti-overturning limiting steel arch frame according to claim 3, characterized in that: A first abutting round head is mounted on one end of the first support rod (323) away from the support plate, and the first abutting round head is used to abut the bracket (1); a second abutting round head is mounted on one end of the second support rod (324) away from the support plate, and the second abutting round head is used to abut the bracket (1).

7. The super-large section steel bar anti-overturning limiting steel arch frame according to claim 1, characterized in that: It also includes a reinforcing rib (4), which is arched and installed on the steel bar (2).

8. The super-large section steel bar anti-overturning limiting steel arch frame according to claim 1, characterized in that: The connection mechanism (3) further comprises a reinforcement assembly (33), wherein the reinforcement assembly (33) comprises a front reinforcement frame (331), a rear reinforcement frame (332) and a reinforcement bolt (333); the front reinforcement frame (331) is mounted on one side of the bracket (1), and one end of the front reinforcement frame (331) further extends to the connection sleeve (311); the rear reinforcement frame (332) is symmetrically mounted on the other side of the bracket (1); the reinforcement bolt (333) passes through the front reinforcement frame (331) and the rear reinforcement frame (332) in sequence, and the front reinforcement frame (331) and the rear reinforcement frame (332) are both threadedly connected to the reinforcement bolt (333); and the reinforcement bolt (333) is used to lock the front reinforcement frame (331) and the rear reinforcement frame (332).

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