Reinforced steel structure beam-column joint for tunnel construction and mounting method of reinforced steel structure beam-column joint

Abstract

The invention relates to the technical field of tunnel construction, in particular to a tunnel construction reinforced type steel structure beam-column joint and an installation method thereof.The tunnel construction reinforced type steel structure beam-column joint comprises an upper beam frame, three pieces of first I-shaped steel are arranged at the bottom of the upper beam frame, and second I-shaped steel is arranged on the opposite sides of the two pieces of first I-shaped steel; and the top of the second I-shaped steel is fixedly connected with a first reinforcing rib plate. The upper beam frame has the advantages of being stable in supporting and good in buffering effect, in the actual using process, the first I-shaped steel, the second I-shaped steel, the first reinforcing rib plate and other components are matched with one another to form a stable frame structure, force borne by the upper beam frame can be effectively transmitted through the second I-shaped steel, and the stability of the whole structure is enhanced; and the telescopic rod in the supporting mechanism can relieve impact force through compression when vibration occurs in the tunnel, additional support is provided for the whole steel structure beam-column joint, the situation that the structure deforms or is damaged due to vibration is avoided, and the stability of the structure is further improved.

Description

Technical Field

[0001] This invention relates to the field of tunnel construction technology, specifically to a reinforced steel structure beam-column joint for tunnel construction and its installation method. Background Technology

[0002] Tunnel construction, as a crucial link in underground engineering, is both technically challenging and risky. Its core objective is to safely and efficiently traverse complex geological conditions and construct a stable underground spatial structure. Tunnel construction must be fully adapted to the geological environment. Adverse geological conditions such as faults, karst caves, and weak surrounding rocks are the core basis for technical decisions. For example, in karst development areas, the distribution of karst caves must be identified in advance, and grouting reinforcement or crossing treatment measures must be taken. Construction faces major risks such as collapses, water inrushes, and gas explosions. It is necessary to build a risk prevention and control system through advanced geological forecasting, real-time monitoring and measurement, and emergency plan drills.

[0003] The existing steel beam-column joint has many structural shortcomings. The connections and constraints between its components are insufficient, making it difficult for the beam-column joint to maintain a stable posture when subjected to external forces. It is prone to swaying and deformation. Due to the poor overall structural stability, it cannot withstand the pressure applied from above the tunnel and therefore cannot provide stable and reliable support for the tunnel. This undoubtedly increases the risk of tunnel collapse. Moreover, when the tunnel vibrates, the beam-column joint lacks the ability to effectively adjust itself to maintain stability. Its support stability will drop sharply, making it difficult to continuously ensure the safety of the tunnel. Furthermore, the beam-column joint is not equipped with a corresponding compression mechanism to absorb and disperse the impact force generated by vibration. As a result, the impact force acts directly on the structure itself without effective buffering. Under the direct action of the impact force without any buffer protection, the various components of the beam-column joint are very likely to be damaged due to excessive stress. This not only affects its normal use function but also poses a serious threat to the safety of the entire structure. Summary of the Invention

[0004] The purpose of this invention is to provide a reinforced steel structure beam-column joint for tunnel construction and its installation method, which has the advantages of stable support and good buffering effect, and solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a reinforced steel structure beam-column joint for tunnel construction, comprising an upper beam frame, three first I-beams at the bottom of the upper beam frame, a second I-beam on one side opposite to the two first I-beams, a first reinforcing rib plate fixedly connected to the top of the second I-beam, the top of the first reinforcing rib plate being fixedly connected to the upper beam frame, two first wedge blocks fixedly connected to both sides of the second I-beam, a base plate fixedly connected to the bottom of the second I-beam, a support block fixedly connected to the bottom of the base plate, and support mechanisms provided on the front and rear sides of the first I-beams.

[0006] Two movable plates are provided on the front and rear sides of the first I-beam. A second wedge block is fixedly connected to one side of each movable plate. One side of the second wedge block extends to the outside of the first I-beam. A T-block is slidably connected to one side of the second wedge block. One side of the T-block is fixedly connected to the first wedge block. A partition is provided on the opposite side of the two movable plates. One side of the partition is fixedly connected to the first I-beam. Two buffer mechanisms are provided on both sides of the partition.

[0007] Furthermore, as a preferred embodiment of the present invention, the support mechanism includes a connecting plate fixedly connected to one side of the support block, and fixing blocks are fixedly connected to both the front and rear sides of the first I-beam. A telescopic rod is fixedly connected to the top of the fixing block, and a square plate is fixedly connected to the output end of the telescopic rod. One side of the square plate extends through to the outside of the first I-beam and is fixedly connected to the connecting plate.

[0008] Furthermore, as a preferred embodiment of the present invention, the buffer mechanism includes guide rods fixedly connected to both sides of the partition. Two guide blocks are slidably connected to the surface of the guide rods. A spring is sleeved on the surface of the guide rods. Both ends of the spring are fixedly connected to the guide blocks. A first connecting member is fixedly connected to the surface of the guide blocks. An adjusting block is rotatably connected to the inner cavity of the first connecting member. A second connecting member is rotatably connected to the other end of the adjusting block. One side of the second connecting member is fixedly connected to the movable plate.

[0009] Furthermore, as a preferred embodiment of the present invention, the guide block and the spring form a telescopic structure, and the maximum moving distance of the guide block is equal to the deformation of the spring.

[0010] Furthermore, as a preferred embodiment of the present invention, both sides of the partition are provided with sliding grooves, and a slider is slidably connected to the inner cavity of the sliding groove, with one side of the slider being fixedly connected to a guide block.

[0011] Furthermore, as a preferred embodiment of the present invention, triangular blocks are fixedly connected to both sides of the first I-beam, and the triangular blocks are located at the bottom of the second wedge-shaped block.

[0012] Furthermore, as a preferred embodiment of the present invention, a plurality of second reinforcing ribs are fixedly connected to the top of the support block, and the top of the second reinforcing ribs is fixedly connected to the second I-beam.

[0013] Furthermore, as a preferred embodiment of the present invention, a short rod is provided on one side of the two movable plates opposite to each other, and the two ends of the short rod extend through to the outside of the movable plates and are fixedly connected to the first I-beam.

[0014] A reinforced steel beam-column joint for tunnel construction and its installation method, the method comprising the following steps: Step 1: Place the first I-beam in the designated position, and then fix the second I-beam between the two first I-beams by welding to make the connection between the multiple first I-beams more stable. Then place the upper beam frame on the top of the tunnel and fix it with the first reinforcing rib plate to support the inside of the tunnel and prevent the tunnel from collapsing.

[0015] Step 2: When vibration occurs inside the tunnel, the upper beam frame can effectively absorb the impact force. The upper beam frame transmits the impact force to the second I-beam through the first reinforcing rib plate, causing the second I-beam to vibrate slightly. At the same time, the second I-beam will drive the first wedge block and the bottom plate to move downward. The bottom plate drives the connecting plate to move downward through the support block. The connecting plate drives the square plate to move. The square plate drives the telescopic rod to compress, thereby effectively reducing the impact force.

[0016] Step 3: When the first wedge block moves, it will drive the second wedge block to move inward towards the interior of the first I-beam via the T-block. The second wedge block drives the movable plate to move, and the movable plate will drive the second connector to move. The second connector will drive one end of the adjusting block to move, so that the other end of the adjusting block will drive the first connector to move. The first connector will drive the guide block to slide on the surface of the guide rod. When the guide block slides, it will drive the spring to stretch, which can effectively reduce the impact force caused by vibration and enhance the shock absorption capacity of the steel structure beam-column joint.

[0017] Beneficial effects: The technical solution of this application has the following advantages: This invention has the advantages of stable support and good buffering effect. In actual use, the first I-beam, the second I-beam, and the first reinforcing rib plate cooperate with each other to form a stable frame structure, so that the force on the upper beam can be effectively transmitted through the second I-beam, which enhances the stability of the entire structure and prevents tunnel collapse. When vibration occurs inside the tunnel, the telescopic rod can reduce the impact force by compression, providing additional support for the entire steel structure beam-column joint, avoiding deformation or damage to the structure due to vibration, and further improving the stability of the structure. The sliding connection between the guide rod and the guide block in the buffering mechanism provides stable guidance for the extension and contraction of the spring, ensuring the accurate performance of the buffering effect. At the same time, the maximum movement distance of the guide block is equal to the deformation of the spring, which precisely controls the buffering range and improves the buffering effect.

[0018] It should be understood that all combinations of the foregoing concepts and the additional concepts described in more detail below can be considered part of the inventive subject matter of this disclosure, provided that such concepts do not contradict each other. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a structural schematic diagram of the second I-beam, base plate, support block, and support mechanism of the present invention; Figure 3 This is a schematic diagram of the structure of the support mechanism, movable plate, second wedge block, and T-block of the present invention; Figure 4 This is a schematic diagram of the structure of the movable plate, partition, and buffer mechanism of the present invention; Figure 5 This is a cross-sectional view of the movable plate, partition, and buffer mechanism of the present invention.

[0020] In the figure, the meanings of the various reference numerals are as follows: 1. Upper beam frame; 2. First I-beam; 3. Second I-beam; 4. First reinforcing rib plate; 5. First wedge block; 6. Base plate; 7. Support block; 8. Support mechanism; 81. Connecting plate; 82. Fixing block; 83. Telescopic rod; 84. Square plate; 9. Short rod; 10. Movable plate; 11. Second wedge block; 12. T-block; 13. Partition plate; 14. Buffer mechanism; 141. Guide rod; 142. Guide block; 143. Spring; 144. First connecting piece; 145. Adjusting block; 146. Second connecting piece; 15. Slide groove; 16. Sliding block; 17. Triangular block; 18. Second reinforcing rib plate. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. To better understand the technical content of the present invention, specific embodiments are provided and described in conjunction with the accompanying drawings. Various aspects of the present invention are described in this disclosure with reference to the accompanying drawings, which illustrate numerous illustrative embodiments. It should be understood that the various concepts and embodiments described above, as well as those described in more detail below, can be implemented in any of many ways. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] As attached Figure 1 To be continued Figure 5 As shown: This embodiment provides a reinforced steel structure beam-column node for tunnel construction, including an upper beam frame 1. Three first I-beams 2 are provided at the bottom of the upper beam frame 1. Two second I-beams 3 are provided on opposite sides of the two first I-beams 2. A first reinforcing rib plate 4 is fixedly connected to the top of the second I-beam 3. The top of the first reinforcing rib plate 4 is fixedly connected to the upper beam frame 1. Two first wedge blocks 5 are fixedly connected to both sides of the second I-beam 3. A base plate 6 is fixedly connected to the bottom of the second I-beam 3. A support block 7 is fixedly connected to the bottom of the base plate 6. Support mechanisms 8 are provided on the front and rear sides of the first I-beams 2.

[0023] Two movable plates 10 are provided on the front and rear sides of the first I-beam 2. A second wedge block 11 is fixedly connected to one side of the movable plate 10. One side of the second wedge block 11 extends to the outside of the first I-beam 2. A T-shaped block 12 is slidably connected to one side of the second wedge block 11. One side of the T-shaped block 12 is fixedly connected to the first wedge block 5. A partition 13 is provided on the opposite side of the two movable plates 10. One side of the partition 13 is fixedly connected to the first I-beam 2. Two buffer mechanisms 14 are provided on both sides of the partition 13.

[0024] Specifically, the support mechanism 8 includes a connecting plate 81 fixedly connected to one side of the support block 7. The front and rear sides of the first I-beam 2 are both fixedly connected to a fixing block 82. The top of the fixing block 82 is fixedly connected to a telescopic rod 83. The output end of the telescopic rod 83 is fixedly connected to a square plate 84. One side of the square plate 84 extends through to the outside of the first I-beam 2 and is fixedly connected to the connecting plate 81.

[0025] In this embodiment, the support mechanism 8 effectively reduces the impact force from above, enhances the resistance of the entire steel structure beam-column joint to vibration and impact, and improves the safety during tunnel construction.

[0026] Specifically, the buffer mechanism 14 includes guide rods 141 fixedly connected to both sides of the partition 13. Two guide blocks 142 are slidably connected to the surface of the guide rods 141. A spring 143 is sleeved on the surface of the guide rods 141. Both ends of the spring 143 are fixedly connected to the guide blocks 142. A first connecting member 144 is fixedly connected to the surface of the guide blocks 142. An adjusting block 145 is rotatably connected to the inner cavity of the first connecting member 144. A second connecting member 146 is rotatably connected to the other end of the adjusting block 145. One side of the second connecting member 146 is fixedly connected to the movable plate 10.

[0027] In this embodiment, the buffer mechanism 14 can effectively reduce the impact force caused by vibration, enhance the buffering capacity of the steel structure beam-column joint against vibration, and ensure that the entire steel structure beam-column joint can operate stably when subjected to vibration impact.

[0028] Specifically, the guide block 142 and the spring 143 form a telescopic structure, and the maximum moving distance of the guide block 142 is equal to the deformation of the spring 143.

[0029] In this embodiment: through the coordinated use of guide block 142 and spring 143, when vibration and impact occur inside the tunnel, the movement of guide block 142 can drive spring 143 to stretch or compress, converting the impact energy into the elastic potential energy of spring 143, maximizing the absorption of vibration energy, and effectively reducing the damage of impact force to steel structure beam-column joints and tunnel structure.

[0030] Specifically, both sides of the partition 13 are provided with sliding grooves 15, and the inner cavity of the sliding groove 15 is slidably connected to a slider 16. One side of the slider 16 is fixedly connected to the guide block 142.

[0031] In this embodiment, the combined use of the groove 15 and the slider 16 serves to limit the guide block 142, thereby improving the stability of the guide block 142 during movement.

[0032] Specifically, triangular blocks 17 are fixedly connected to both sides of the first I-beam 2, and the triangular blocks 17 are located at the bottom of the second wedge block 11.

[0033] In this embodiment, the triangular block 17 provides additional support for the second wedge block 11, preventing the second wedge block 11 from deforming or shifting due to excessive force, thereby enhancing the stability of the entire steel structure beam-column joint.

[0034] Specifically, the top of the support block 7 is fixedly connected with several second reinforcing ribs 18, and the top of the second reinforcing ribs 18 is fixedly connected to the second I-beam 3.

[0035] In this embodiment, the second reinforcing rib plate 18 forms a more stable connection structure. Under complex stress environments such as tunnel construction, it can effectively enhance the connection strength between the support block 7 and the second I-beam 3, so that the entire steel structure beam-column joint has higher stability when bearing the pressure transmitted from the upper beam frame 1 and various forces that may be generated inside the tunnel, preventing the structure from deforming or being damaged.

[0036] Specifically, short rods 9 are provided on opposite sides of the two movable plates 10, with both ends of the short rods 9 extending through to the outside of the movable plates 10 and fixedly connected to the first I-beam 2.

[0037] In this embodiment, the short rod 9 effectively limits the swaying range of the movable plate 10, making its movement more stable and orderly, avoiding excessive displacement or tilting of the movable plate 10, and enhancing the stability of the movable plate 10 itself.

[0038] A reinforced steel beam-column joint for tunnel construction and its installation method, the method comprising the following steps: Step 1: Place the first I-beam 2 in the designated position, and then fix the second I-beam 3 between the two first I-beams 2 by welding, so that the connection between the multiple first I-beams 2 is more stable. Then, place the upper beam frame 1 on the top of the tunnel and fix it by the first reinforcing rib plate 4, so as to support the inside of the tunnel and prevent the tunnel from collapsing.

[0039] Step 2: When vibration occurs inside the tunnel, the upper beam frame 1 can effectively absorb the impact force. The upper beam frame 1 transmits the impact force to the second I-beam 3 through the first reinforcing rib plate 4, causing the second I-beam 3 to vibrate slightly. At the same time, the second I-beam 3 will drive the first wedge block 5 and the bottom plate 6 to move downward. The bottom plate 6 drives the connecting plate 81 to move downward through the support block 7. The connecting plate 81 drives the square plate 84 to move. The square plate 84 drives the telescopic rod 83 to compress, thereby effectively reducing the impact force.

[0040] Step 3: When the first wedge block 5 moves, it will drive the second wedge block 11 to move into the interior of the first I-beam 2 through the T-shaped block 12. The second wedge block 11 drives the movable plate 10 to move. When the movable plate 10 moves, it will drive the second connecting piece 146 to move. The second connecting piece 146 drives one end of the adjusting block 145 to move, so that the other end of the adjusting block 145 drives the first connecting piece 144 to move. The first connecting piece 144 drives the guide block 142 to slide on the surface of the guide rod 141. When the guide block 142 slides, it will drive the spring 143 to stretch, thereby effectively reducing the impact force caused by vibration and enhancing the shock absorption capacity of the steel structure beam-column joint.

[0041] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0042] While the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the invention. Those skilled in the art can make various modifications and refinements without departing from the spirit and scope of the invention. Therefore, the scope of protection of the present invention shall be determined by the claims.

Claims

1. A reinforced steel structure beam-column joint for tunnel construction, comprising an upper beam frame (1), characterized in that: The bottom of the upper beam frame (1) is provided with three first I-beams (2), and a second I-beam (3) is provided on the opposite side of the two first I-beams (2). The top of the second I-beam (3) is fixedly connected with a first reinforcing rib plate (4). The top of the first reinforcing rib plate (4) is fixedly connected to the upper beam frame (1). Two first wedge blocks (5) are fixedly connected to both sides of the second I-beam (3). The bottom of the second I-beam (3) is fixedly connected with a base plate (6). The bottom of the base plate (6) is fixedly connected with a support block (7). Support mechanisms (8) are provided on the front and rear sides of the first I-beam (2). Two movable plates (10) are provided on the front and rear sides of the first I-beam (2). A second wedge block (11) is fixedly connected to one side of the movable plate (10). One side of the second wedge block (11) extends to the outside of the first I-beam (2). A T-shaped block (12) is slidably connected to one side of the second wedge block (11). One side of the T-shaped block (12) is fixedly connected to the first wedge block (5). A partition (13) is provided on the opposite side of the two movable plates (10). One side of the partition (13) is fixedly connected to the first I-beam (2). Two buffer mechanisms (14) are provided on both sides of the partition (13).

2. The reinforced steel beam-column joint for tunnel construction according to claim 1, characterized in that: The support mechanism (8) includes a connecting plate (81) fixedly connected to one side of the support block (7). The front and rear sides of the first I-beam (2) are fixedly connected to a fixing block (82). The top of the fixing block (82) is fixedly connected to a telescopic rod (83). The output end of the telescopic rod (83) is fixedly connected to a square plate (84). One side of the square plate (84) extends through to the outside of the first I-beam (2) and is fixedly connected to the connecting plate (81).

3. The reinforced steel beam-column joint for tunnel construction according to claim 1, characterized in that: The buffer mechanism (14) includes a guide rod (141) fixedly connected to both sides of the partition (13). Two guide blocks (142) are slidably connected to the surface of the guide rod (141). A spring (143) is sleeved on the surface of the guide rod (141). Both ends of the spring (143) are fixedly connected to the guide block (142). A first connector (144) is fixedly connected to the surface of the guide block (142). An adjusting block (145) is rotatably connected to the inner cavity of the first connector (144). A second connector (146) is rotatably connected to the other end of the adjusting block (145). One side of the second connector (146) is fixedly connected to the movable plate (10).

4. A reinforced steel beam-column joint for tunnel construction according to claim 3, characterized in that: The guide block (142) and the spring (143) form a telescopic structure, and the maximum moving distance of the guide block (142) is equal to the deformation of the spring (143).

5. A reinforced steel beam-column joint for tunnel construction according to claim 3, characterized in that: The partition (13) has grooves (15) on both sides, and a slider (16) is slidably connected to the inner cavity of the groove (15). One side of the slider (16) is fixedly connected to the guide block (142).

6. A reinforced steel beam-column joint for tunnel construction according to claim 1, characterized in that: Triangular blocks (17) are fixedly connected to both sides of the first I-beam (2), and the triangular blocks (17) are located at the bottom of the second wedge block (11).

7. A reinforced steel beam-column joint for tunnel construction according to claim 1, characterized in that: The top of the support block (7) is fixedly connected with several second reinforcing ribs (18), and the top of the second reinforcing ribs (18) is fixedly connected to the second I-beam (3).

8. A reinforced steel beam-column joint for tunnel construction according to claim 1, characterized in that: A short rod (9) is provided on one side of the two movable plates (10) opposite to each other. The two ends of the short rod (9) extend through the outside of the movable plate (10) and are fixedly connected to the first I-beam (2).

9. A method for installing reinforced steel beam-column joints in tunnel construction, comprising the following steps: Step 1: Place the first I-beam (2) in the designated position, and then fix the second I-beam (3) between the two first I-beams (2) by welding, so that the connection between the multiple first I-beams (2) is more stable. Then place the upper beam frame (1) on the top of the tunnel and fix it by the first reinforcing rib plate (4), so as to support the inside of the tunnel and prevent the tunnel from collapsing. Step 2: When vibration occurs inside the tunnel, the upper beam frame (1) can effectively absorb the impact force. The upper beam frame (1) transmits the impact force to the second I-beam (3) through the first reinforcing rib plate (4), causing the second I-beam (3) to vibrate slightly. At the same time, the second I-beam (3) will drive the first wedge block (5) and the bottom plate (6) to move downward. The bottom plate (6) drives the connecting plate (81) to move downward through the support block (7). The connecting plate (81) drives the square plate (84) to move. The square plate (84) drives the telescopic rod (83) to compress, thereby effectively reducing the impact force. Step 3: When the first wedge block (5) moves, it will drive the second wedge block (11) to move into the interior of the first I-beam (2) through the T-shaped block (12). The second wedge block (11) drives the movable plate (10) to move. When the movable plate (10) moves, it will drive the second connector (146) to move. The second connector (146) drives one end of the adjusting block (145) to move, so that the other end of the adjusting block (145) drives the first connector (144) to move. The first connector (144) drives the guide block (142) to slide on the surface of the guide rod (141). When the guide block (142) slides, it will drive the spring (143) to stretch, thereby effectively reducing the impact force caused by vibration and enhancing the buffering capacity of the steel structure beam-column joint against vibration.

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