Multifunctional and multi-mechanism composite energy dissipation supporting structure of kiln tail tower

Abstract

The invention discloses a multifunctional and multi-mechanism composite energy dissipation supporting structure for a kiln tail tower. A steel beam is arranged between two steel columns to form a frame, and a supporting energy dissipation component is arranged in the frame; the supporting energy-consuming component comprises a supporting core material, a supporting energy-consuming component body and a supporting energy-consuming component body, the supporting constraint is of a double-layer lattice type sleeve structure and is arranged outside the supporting core material in a sleeving mode, and constraint filler is filled between layers of the supporting constraint; and a first energy consumption assembly and a second energy consumption assembly. Separation of the kiln tail supporting function and the energy consumption function is achieved, and multi-direction and multi-level energy consumption is achieved through energy consumption of the multiple energy consumption cavities.

Description

Technical Field

[0001] The invention relates to the technical field of shock-absorbing support, and in particular to a multifunctional, multi-mechanism composite energy-absorbing support structure of a kiln tail tower. Background Art

[0002] There is currently no special shock-absorbing structural system and shock-absorbing structural device for the kiln tail tower structure in the existing technology. The kiln tail tower structure in high-intensity areas needs to adopt earthquake-resistant technology to ensure the safety of the structure and equipment, which brings great difficulties to the structural design and has poor economic efficiency.

[0003] If the existing shock-absorbing system is used, such as anti-buckling restraint support, it is difficult to ensure the normal installation and use of the structural equipment, because general energy-absorbing devices can only bear horizontal seismic loads and cannot bear the deadweight of the structure itself and the equipment. However, the equipment load of the kiln tail tower accounts for a large proportion. In the absence of support, if the equipment load is added to the structure, the safety of the structure will be greatly reduced. Therefore, the general energy-absorbing devices installed later are not suitable for structures such as the kiln tail tower structure with a large equipment load proportion.

[0004] In addition, the existing shock absorbing devices are all conventional viscous dampers or displacement dampers, and the damping force changes in a single pattern. The original structure connected to the damper needs to bear this single changing damping force. If the design intensity or extreme load occurs, the damping force of the damper will continue to increase, causing damage to the original structure. The existing dampers are generally unidirectional shock absorbing and do not have multi-directional shock absorbing functions. Moreover, the user cannot obtain even accurate information on structural damage or damage to the energy-consuming device itself, and cannot truly achieve safe operation of the structure and equipment. Summary of the invention

[0005] Purpose of the invention: In order to overcome the shortcomings of the background technology, the present invention discloses a multifunctional, multi-mechanism composite energy-absorbing support structure of a kiln tail tower, which realizes the separation of the kiln tail support function and the energy-absorbing function, and realizes multi-directional and multi-level energy absorption through energy absorption of multiple energy-absorbing cavities.

[0006] Technical solution: The multifunctional, multi-mechanism composite energy-absorbing support structure of the kiln tail tower disclosed in the present invention has a steel beam arranged between two steel columns to form a frame, and supporting energy-absorbing components are arranged in the frame; The supporting energy-consuming component comprises: The supporting core material has a cross section of a symmetrical arc-head I-shape; The support constraint is a double-layer lattice sleeve structure, which is sleeved outside the support core material, and the interlayer is filled with constraint filler; A first energy dissipation component includes a first energy dissipation cavity, which is arranged outside the support constraint, wherein methyl silicone oil is poured into the first energy dissipation cavity, and a lead block is arranged, wherein the lead block is suspended inside the methyl silicone oil through a shape memory metal, and a spiral hole is formed through the lead block; The second energy-absorbing component includes a second energy-absorbing cavity, which is arranged outside the support constraint. Friction energy-absorbing copper sheets are arranged at the top and bottom of the second energy-absorbing cavity, and friction energy-absorbing lead blocks are arranged between the friction energy-absorbing copper sheets. The two ends of the friction energy-absorbing lead blocks are connected to the two ends inside the second energy-absorbing cavity through springs and buffers respectively.

[0007] Furthermore, the constraining filler is made of paulownia wood.

[0008] Furthermore, the first energy absorbing component and the second energy absorbing component are fastened by a clamp and a support constraint.

[0009] Furthermore, the first energy dissipation cavity and the lead block are both arranged horizontally, and the spiral hole extends horizontally on the lead block.

[0010] Furthermore, the shape memory metal adopts a plurality of spiral memory metal springs arranged at intervals.

[0011] Furthermore, the second energy-absorbing cavity and the friction energy-absorbing lead block are both arranged horizontally, a stiffening rib is arranged between the friction energy-absorbing copper sheet and the second energy-absorbing cavity, and the upper and lower friction energy-absorbing copper sheets are fixed by pre-tightening bolts.

[0012] Furthermore, a first monitoring chamber is arranged between the support constraint and the first energy consumption component, and a strain monitoring sensor and a temperature monitoring sensor are arranged in the first monitoring chamber, both of which are connected to the support core material.

[0013] Furthermore, a second monitoring chamber is arranged between the support constraint and the second energy-consuming component, and an arc deformation sensor connected to the support constraint and an acceleration sensor are arranged in the second monitoring chamber.

[0014] Beneficial effects: Compared with the prior art, the advantages of the present invention are: The support can bear the deadweight load of the vertical structure and equipment, and the energy consumption will not be affected by the vertical load, thus realizing the separate design of support and energy consumption; It can achieve energy dissipation under different earthquake levels. Through different energy dissipation mechanisms, the structure can gradually start the energy dissipation mechanism under small earthquakes, medium earthquakes and large earthquakes to achieve multi-level energy dissipation. Both energy dissipation mechanisms need to achieve energy dissipation capabilities in all horizontal directions to avoid the limitations of the device's energy dissipation capacity due to the random characteristics of the earthquake motion direction; Real-time monitoring of new supporting materials is carried out to understand their stress status and damage status at any time. At the same time, real-time monitoring of structural safety data is also carried out to truly achieve safe operation of the kiln tail structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the overall structure diagram of the present invention; Figure 2 for Figure 1 Middle AA section view; Figure 3 for Figure 1 Middle BB cross section; Figure 4 It is a cross-sectional view in the length direction of the first energy dissipation component of the present invention; Figure 5 for Figure 4 Middle CC cross section; Figure 6 It is a cross-sectional view in the length direction of the second energy dissipation component of the present invention; Figure 7 for Figure 6 Middle DD cross-section. DETAILED DESCRIPTION

[0016] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0017] like Figure 1 The kiln tail tower is a multifunctional, multi-mechanism composite energy-absorbing support structure, in which a steel beam is arranged between two steel columns to form a frame, and supporting energy-absorbing components are arranged in the frame; The supporting energy-consuming component comprises: The support core material 1 has a cross section of a symmetrical arc-shaped I-shaped head, such as Figure 2 As shown, high-strength steel is used and allowable stress design is adopted during tensioning to ensure that it will not yield in rare earthquakes.

[0018] The support constraint 2 is a double-layer lattice sleeve structure, which is sleeved on the outside of the support core material 1. The interlayer is filled with a constraint filler 201. In this embodiment, paulownia wood is used, which does not yield under pressure. This can avoid the ordinary anti-buckling constraint support from generating certain stress under the deadweight of the structure and the deadweight of the equipment, thereby affecting its energy consumption.

[0019] This design ensures the normal supporting function of the kiln tail tower structure, and the amount of steel used can be greatly reduced.

[0020] It also includes a first energy dissipation component 3 and a second energy dissipation component 4, both of which are fastened to the support constraint 2 through a clamp 5, such as Figure 3 shown.

[0021] like Figure 4 and 5As shown, the first energy dissipation component 3 includes a first energy dissipation cavity 301, which is arranged outside the support constraint 2. Low-viscosity methyl silicone oil 302 is poured into the first energy dissipation cavity 301, and a lead block 303 is arranged. The lead block 303 is suspended inside the methyl silicone oil 302 by a shape memory metal 304. During an earthquake, the lead block moves in the silicone oil to generate viscous energy dissipation.

[0022] The lead block 303 is penetrated by a spiral hole 305. The movement of silicone oil in the hole also increases energy consumption, and the yielding of the shape memory metal 304 connecting the lead block also generates energy consumption. The viscous energy consumption mechanism will be activated under a small earthquake, and the energy consumption of the shape memory metal 304 must be activated under a medium earthquake through the allowable stress design.

[0023] The first energy dissipation cavity 301 and the lead block 303 are both arranged horizontally, and the spiral hole 305 extends horizontally on the lead block 303. In this embodiment, the shape memory metal 304 is a plurality of spiral memory metal springs arranged at intervals.

[0024] like Figure 6 and 7 As shown, the second energy-absorbing component 4 includes a second energy-absorbing cavity 401, which is arranged outside the support constraint 2, and friction energy-absorbing copper sheets 402 are respectively arranged at the top and bottom of the second energy-absorbing cavity 401, and friction energy-absorbing lead blocks 403 are arranged between the friction energy-absorbing copper sheets 402, and the two ends of the friction energy-absorbing lead blocks 403 are respectively connected to the two ends inside the second energy-absorbing cavity 401 through springs 404 and buffers 405.

[0025] The second energy dissipation cavity 401 and the friction energy dissipation lead block 403 are both arranged horizontally, a stiffening rib 406 is arranged between the friction energy dissipation copper sheet 402 and the second energy dissipation cavity 401 , and the upper and lower friction energy dissipation copper sheets 402 are fixed by pre-tightening bolts 407 .

[0026] Frictional energy consumption The movement of the lead block under the action of inertia generates frictional energy consumption. The design must ensure that the inertial force of the lead block under rare earthquakes is greater than the friction force of the copper sheet to generate frictional energy consumption.

[0027] The above two energy dissipation chambers adopt different energy dissipation mechanisms to realize the activation of different energy dissipation mechanisms under small earthquakes, medium earthquakes and large earthquakes.

[0028] Because both energy dissipation mechanisms achieve energy dissipation through the movement of the mass block in the cavity, and the movement of the mass block is not constrained in direction, they can both achieve energy dissipation capabilities in all horizontal directions, avoiding the limitation of the device's energy dissipation capacity due to the random characteristics of the direction of seismic motion.

[0029] like Figure 1As shown, a first monitoring chamber 6 is provided between the support constraint 2 and the first energy dissipation component 3, and a strain monitoring sensor and a temperature monitoring sensor are provided in the first monitoring chamber 6, both of which are connected to the support core material 1. A second monitoring chamber 7 is provided between the support constraint 2 and the second energy dissipation component 4, and a radian deformation sensor is provided in the second monitoring chamber 7 and is connected to the support constraint 2, as well as an acceleration sensor. The above sensors are all connected to an acquisition card for wireless transmission, and their safety thresholds can be obtained through data analysis, and damage warnings can be provided to achieve real-time acquisition of support performance.

Claims

1. A multifunctional, multi-mechanism composite energy-absorbing support structure of a kiln tail tower, wherein a steel beam is arranged between two steel columns to form a frame, characterized in that: A supporting energy-consuming component is arranged in the frame; The supporting energy-consuming component comprises: A supporting core material (1) having a cross section of a symmetrical arc-shaped I-shaped head; The support constraint (2) is a double-layer lattice sleeve structure, which is sleeved outside the support core material (1), and the constraint filler (201) is filled between the layers; A first energy dissipation component (3), comprising a first energy dissipation cavity (301), arranged outside the support constraint (2), wherein the first energy dissipation cavity (301) is filled with methyl silicone oil (302), and a lead block (303) is arranged, wherein the lead block (303) is suspended inside the methyl silicone oil (302) via a shape memory metal (304), and a spiral hole (305) is provided through the lead block (303); The second energy dissipation component (4) comprises a second energy dissipation chamber (401) which is arranged outside the support constraint (2); friction energy dissipation copper sheets (402) are arranged at the top and bottom of the second energy dissipation chamber (401), respectively; and friction energy dissipation lead blocks (403) are arranged between the friction energy dissipation copper sheets (402); two ends of the friction energy dissipation lead blocks (403) are connected to two ends inside the second energy dissipation chamber (401) via springs (404) and buffers (405), respectively.

2. The multifunctional, multi-mechanism composite energy-absorbing support structure of the kiln tail tower according to claim 1 is characterized in that: The constraining filler (201) is made of paulownia wood.

3. The multifunctional, multi-mechanism composite energy-absorbing support structure of the kiln tail tower according to claim 1 is characterized in that: The first energy dissipation component (3) and the second energy dissipation component (4) are fastened to the support constraint (2) via a clamp (5).

4. The multifunctional, multi-mechanism composite energy-absorbing support structure of the kiln tail tower according to claim 1 is characterized in that: The first energy dissipation cavity (301) and the lead block (303) are both arranged horizontally, and the spiral hole (305) extends horizontally on the lead block (303).

5. The multifunctional, multi-mechanism composite energy-absorbing support structure of the kiln tail tower according to claim 1 is characterized in that: The shape memory metal (304) adopts a plurality of spiral memory metal springs arranged at intervals.

6. The multifunctional, multi-mechanism composite energy-absorbing support structure of the kiln tail tower according to claim 1 is characterized in that: The second energy dissipation cavity (401) and the friction energy dissipation lead block (403) are both arranged horizontally, a stiffening rib (406) is arranged between the friction energy dissipation copper sheet (402) and the second energy dissipation cavity (401), and the upper and lower friction energy dissipation copper sheets (402) are fixed by means of pre-tightening bolts (407).

7. The multifunctional, multi-mechanism composite energy-absorbing support structure of the kiln tail tower according to claim 1 is characterized in that: A first monitoring chamber (6) is arranged between the support constraint (2) and the first energy dissipation component (3), and a strain monitoring sensor and a temperature monitoring sensor are arranged in the first monitoring chamber (6), both of which are connected to the support core material (1).

8. The multifunctional, multi-mechanism composite energy-absorbing support structure of the kiln tail tower according to claim 1 is characterized in that: A second monitoring chamber (7) is arranged between the support constraint (2) and the second energy consumption component (4), and an arc deformation sensor connected to the support constraint (2) and an acceleration sensor are arranged in the second monitoring chamber (7).

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