Two-point suspended energy dissipation self-resetting steel truss

Abstract

The utility model is suitable for building structure seismic technology field relates to a two point suspension formula energy dissipation self-resetting steel truss, include: first energy dissipation self-resetting piece, second energy dissipation self-resetting piece, first truss beam, second truss beam and truss column, one end of first truss beam and one end of second truss beam are connected through truss column, and the other end of first truss beam is equipped with first energy dissipation self-resetting piece, and the other end of second truss beam is equipped with second energy dissipation self-resetting piece, and first energy dissipation self-resetting piece is installed on the first mounting piece of chimney cylinder wall, and second energy dissipation self-resetting piece is installed on the second mounting piece of chimney cylinder wall, the utility model discloses simple structure, convenient installation, lower cost can effectively improve the seismic toughness of building, decoration and structure integration chimney, has guaranteed the safety performance of chimney seismic design.

Description

Technical Field

[0001] This utility model belongs to the field of seismic resistance technology of building structures, and particularly relates to a two-point suspended energy-dissipating self-resetting steel truss. Background Technology

[0002] Chimneys are typical tall structures widely used in industrial buildings such as those in the power, metallurgy, and chemical industries. Their main function is to discharge flue gas to altitudes permitted by environmental standards. In recent years, with the promotion of low-carbon and green concepts, and the growing popularity of smart city and eco-friendly ideas, chimney design concepts have changed. Architecture, decoration, and structure are now integrated, and the role of chimneys has transformed from a traditional, single structural structure into a structure-building complex, unifying functionality and aesthetics.

[0003] However, since chimneys are typically tens to hundreds of meters high, their seismic design is particularly important in earthquake-resistant zones. Due to architectural and decorative requirements, additional structures such as observation platforms and decorative curtain walls are usually added to the top. These additional loads cannot be directly supported by the ground due to structural limitations and are primarily suspended externally from the chimney top. Because the chimney body is a flexible structure with relatively low lateral stiffness, the addition of large external loads at the top significantly increases the dynamic response during earthquakes, potentially leading to damage and posing a technical challenge to the seismic design of chimneys. Traditional reinforced concrete chimneys mainly employ passive seismic design methods, primarily increasing the cross-sectional area of ​​structural members to resist structural deformation caused by earthquakes, thereby preventing damage due to excessive deformation. However, this method, in the integrated architectural, decorative, and structural design of reinforced concrete chimneys, leads to increased seismic response, larger structural area, and significantly higher costs.

[0004] Therefore, how to design energy dissipation and vibration reduction for chimney structures, and improve the seismic toughness of integrated reinforced concrete chimneys that combine architecture, decoration, and structure, in order to ensure the structural safety of chimney structures during service, is an urgent problem to be solved by personnel in this technical field. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a two-point suspended energy-dissipating self-resetting steel truss to solve the problems of low seismic safety and high cost of chimney seismic design in the existing technology.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] This utility model provides a two-point suspended energy-dissipating self-resetting steel truss, comprising:

[0008] The system comprises a first energy-consuming self-resetting component, a second energy-consuming self-resetting component, a first truss beam, a second truss beam, and a truss column. One end of the first truss beam is connected to one end of the second truss beam through the truss column. The other end of the first truss beam is provided with the first energy-consuming self-resetting component, and the other end of the second truss beam is provided with the second energy-consuming self-resetting component. The first energy-consuming self-resetting component is installed on a first mounting component on the chimney wall, and the second energy-consuming self-resetting component is installed on a second mounting component on the chimney wall.

[0009] The first energy-consuming self-resetting component includes a first extended short beam, a first high-strength bolt group, a first reset disc spring assembly, and a first fixed stiffening rib. The first extended short beam is connected to the first truss beam at the web through the first high-strength bolt group. One end of the first fixed stiffening rib is connected to the first extended short beam, and the other end is connected to the first truss beam. The first reset disc spring assembly is provided between the two ends of the first fixed stiffening rib.

[0010] The second energy-consuming self-resetting component includes a second extended short beam, a second high-strength bolt group, a second reset disc spring assembly, and a second fixed stiffening rib. The second extended short beam is connected to the second truss beam at the web through the second high-strength bolt group. One end of the second fixed stiffening rib is connected to the second extended short beam, and the other end is connected to the second truss beam. The second reset disc spring assembly is provided between the two ends of the second fixed stiffening rib.

[0011] Furthermore, it also includes a first energy-dissipating support member, one end of which is connected to the first truss beam and the other end of which is connected to the truss column.

[0012] Furthermore, it also includes a second energy-dissipating support member, one end of which is connected to the first truss beam and the other end of which is connected to the second mounting member.

[0013] Furthermore, it also includes a first web member, one end of which is connected to the truss column and the other end of which is connected to the chimney wall.

[0014] Furthermore, it also includes a second web member, one end of which is connected to the second energy-dissipating support member, and the other end of which is connected to the first mounting member.

[0015] Furthermore, the first energy-consuming self-resetting component also includes a first energy-consuming steel plate, the two ends of which are respectively connected to the flange of the first extended short beam and the flange of the first truss beam.

[0016] Furthermore, the second energy-consuming self-resetting component also includes a second energy-consuming steel plate, the two ends of which are respectively connected to the flange of the second extended short beam and the flange of the second truss beam.

[0017] Compared with the prior art, the two-point suspended energy-dissipating self-resetting steel truss provided by this utility model has at least the following advantages:

[0018] Traditional reinforced concrete chimneys primarily employ passive seismic design methods, leading to increased seismic response, larger structural area, and significantly higher costs. This results in lower seismic safety and higher costs for the chimney's design. This invention features a simple structure and convenient installation. The web of the energy-dissipating self-resetting component primarily bears vertical shear force, while the energy-dissipating steel plate and the reset disc spring assembly primarily bear horizontal force and bending moment. Under seismic loading, the outer energy-dissipating steel plate undergoes significant elastoplastic deformation during rotation, absorbing seismic energy. After deformation, the reset disc spring assembly stores substantial elastic potential energy, causing the rotated steel beam to approach zero position, thus reducing residual structural deformation after the earthquake. Furthermore, the energy-dissipating steel plate and disc spring reset assembly are bolted together, allowing for rapid replacement in case of significant deformation failure at a low cost. This invention effectively improves the seismic toughness of integrated building, decoration, and structure chimneys, ensuring the safety performance of the chimney's seismic design. Attached Figure Description

[0019] To more clearly illustrate the solution of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 A perspective view of a two-point suspended self-resetting steel truss provided for an embodiment of this utility model;

[0021] Figure 2 A perspective view of the first energy-consuming self-resetting component of a two-point suspended self-resetting steel truss provided for an embodiment of this utility model;

[0022] Figure 3 A perspective view of the second energy-consuming self-resetting component of a two-point suspended self-resetting steel truss provided for an embodiment of this utility model;

[0023] Reference numerals: 10-First energy-dissipating self-resetting component; 101-First extended short beam; 102-First high-strength bolt group; 103-First reset disc spring assembly; 104-First fixed stiffening rib; 105-First energy-dissipating steel plate; 20-Second energy-dissipating self-resetting component; 201-Second extended short beam; 202-Second high-strength bolt group; 203-Second reset disc spring assembly; 204-Second fixed stiffening rib; 205-Second energy-dissipating steel plate; 30-First truss beam; 40-Second truss beam; 50-Truss column; 60-Chimney wall; 601-First mounting component; 602-Second mounting component; 701-First energy-dissipating support component; 702-Second energy-dissipating support component; 801-First web member; 802-Second web member. Detailed Implementation

[0024] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0026] This utility model embodiment provides a two-point suspended self-resetting steel truss, which is applied to the seismic design of chimneys in building structures, and in some cases can also be applied to the seismic design of other building structures. The two-point suspended self-resetting steel truss includes:

[0027] The system comprises a first energy-dissipating self-resetting component, a second energy-dissipating self-resetting component, a first truss beam, a second truss beam, and a truss column; one end of the first truss beam is connected to one end of the second truss beam via a truss column, the other end of the first truss beam is provided with a first energy-dissipating self-resetting component, the other end of the second truss beam is provided with a second energy-dissipating self-resetting component, the first energy-dissipating self-resetting component is installed on a first mounting component on the chimney wall, and the second energy-dissipating self-resetting component is installed on a second mounting component on the chimney wall.

[0028] This utility model has a simple structure, is easy to install, and has a low cost. It can effectively improve the seismic toughness of chimneys that integrate building, decoration, and structure, and ensure the safety performance of the chimney's seismic design.

[0029] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0030] This utility model provides a two-point suspended self-resetting steel truss, which can be applied to the seismic design of reinforced concrete chimneys in building structures. In some cases, it can also be applied to the seismic design of other building structures. Figures 1 to 3 In this embodiment, the two-point suspended self-resetting steel truss includes:

[0031] The first energy-dissipating self-resetting component 10, the second energy-dissipating self-resetting component 20, the first truss beam 30, the second truss beam 40, and the truss column 50 form a basic steel truss structure. One end of the first truss beam 30 is connected to one end of the second truss beam 40 through the truss column 50. The other end of the first truss beam 30 is provided with the first energy-dissipating self-resetting component 10, and the other end of the second truss beam 40 is provided with the second energy-dissipating self-resetting component 20. The first energy-dissipating self-resetting component 10 is installed on the first mounting component 601 pre-embedded and fixed on the chimney wall 60, and the second energy-dissipating self-resetting component 20 is installed on the second mounting component 602 pre-embedded and fixed on the chimney wall 60, forming a two-point suspended energy-dissipating self-resetting steel truss structure. The first energy-dissipating self-resetting component 10 and the second energy-dissipating self-resetting component 20 are designed to be hinged in terms of force distribution. The first energy-dissipating self-resetting component 10 includes a first extended short beam 101 and a first high-strength bolt group 10. 2. A first reset disc spring assembly 103 and a first fixed stiffening rib 104 are provided. The first extended short beam 101 is connected to the first truss beam 30 at the web via a first high-strength bolt group 102. One end of the first fixed stiffening rib 104 is connected to the first extended short beam 101, and the other end is connected to the first truss beam 30. The first reset disc spring assembly 103 is provided between the two ends of the first fixed stiffening rib 104. The second energy-consuming self-resetting component 20 includes a second extended short beam 201, a second high-strength bolt group 202, a second reset disc spring assembly 203, and a second fixed stiffening rib 204. The second extended short beam 201 is connected to the second truss beam 40 at the web via a second high-strength bolt group 202. One end of the second fixed stiffening rib 204 is connected to the second extended short beam 201, and the other end is connected to the second truss beam 40. The second reset disc spring assembly 203 is provided between the two ends of the second fixed stiffening rib 204.

[0032] Furthermore, in this embodiment, a first energy-dissipating support 701 and a second energy-dissipating support 702 are also included. One end of the first energy-dissipating support 701 is connected to the first truss beam 30 and the other end is connected to the truss column 50. One end of the second energy-dissipating support 702 is connected to the first truss beam 30 and the other end is connected to the second mounting component 602. The first energy-dissipating support 701 and the second energy-dissipating support 702 are in a herringbone shape, which is used to improve the stiffness, load-bearing capacity and energy dissipation capacity of the steel truss.

[0033] Furthermore, in this embodiment, a first web member 801 and a second web member 802 are also included. One end of the first web member 801 is connected to the truss column 50 and the other end is connected to the chimney wall 60. One end of the second web member 802 is connected to the second energy-dissipating support 702 and the other end is connected to the first mounting member 601, which are used to improve the stiffness, load-bearing capacity and energy dissipation capacity of the steel truss.

[0034] Furthermore, in this embodiment, the first energy-consuming self-resetting component also includes a first energy-consuming steel plate 105 and a second energy-consuming steel plate 205. The two ends of the first energy-consuming steel plate 105 are respectively connected to the flange of the first extended short beam 101 and the flange of the first truss beam 30, and the two ends of the second energy-consuming steel plate 205 are respectively connected to the flange of the second extended short beam 201 and the flange of the second truss beam 40, which are used to bear horizontal forces and bending moments and improve the horizontal toughness of the steel truss.

[0035] In this embodiment, the web portion of the first energy-dissipating self-resetting component 10 and the second energy-dissipating self-resetting component 20 mainly bears the vertical shear force, while the first energy-dissipating steel plate 105, the second energy-dissipating steel plate 205, the first reset disc spring assembly 103, and the second reset disc spring assembly 203 mainly bear the horizontal force and bending moment. Under seismic action, during the rotation of the first energy-dissipating self-resetting component 10 and the second energy-dissipating self-resetting component 20, the outermost first energy-dissipating steel plate 105 and the second energy-dissipating steel plate 205 will undergo a large amount of elastoplastic deformation and absorb seismic energy. After deformation, the first reset disc spring assembly 103 and the second reset disc spring assembly 203 will store a large amount of elastic potential energy, causing the rotated steel beam to tend towards zero position, which is beneficial to reducing the residual structural deformation after the earthquake. In addition, the first energy-dissipating steel plate 105, the second energy-dissipating steel plate 205, the first disc spring reset assembly 103, and the second disc spring reset assembly 203 are all bolted together, which can be quickly replaced after large deformation failure, resulting in low cost.

[0036] In this embodiment, the first truss beam 30 and the second truss beam 40 are steel beams with an I-shaped cross-section, welded from hot-rolled steel. In other embodiments, the first truss beam 30 and the second truss beam 40 may also have a box-shaped cross-section, which can be directly welded from steel plates.

[0037] In this embodiment, the truss column 50 is a steel column with a circular tube cross-section, which is welded from hot-rolled steel. In other embodiments, the cross-section of the truss column 50 can also be I-shaped, box-shaped, etc., and can be directly welded from steel plates.

[0038] In this embodiment, the first energy-consuming support 701 and the second energy-consuming support 702 have a circular tube cross-section and are welded from hot-rolled steel. In other embodiments, the cross-sectional shape of the first energy-consuming support 701 and the second energy-consuming support 702 can also be I-shaped, box-shaped, etc., and can be welded from steel plates.

[0039] In this embodiment, the first web member 801 and the second web member 802 are steel rods with a circular cross-section shape, welded into a T-shape, and made of hot-rolled steel. In other embodiments, the cross-sectional shape of the first web member 801 and the second web member 802 can also be I-shaped, box-shaped, etc., and can be welded into any shape by hot-rolled steel or steel plate.

[0040] The following is combined Figures 1 to 3 The manufacturing process of the two-point suspended energy-dissipating self-resetting steel truss provided in this embodiment of the present invention is as follows:

[0041] During the construction of the chimney wall 60, a first mounting component 601 and a second mounting component 602 are pre-embedded and installed, respectively for anchoring the first extended short beam 101 and the second extended short beam 201.

[0042] The factory prefabricates the first truss beam 30, the second truss beam 40, the truss column 50, the first web member 801, the second web member 802, the first energy-dissipating support 701, and the second energy-dissipating support 702.

[0043] The first truss beam 30, the second truss beam 40, the truss column 50, the first web member 801, the second web member 802, the first energy-dissipating support member 701 and the second energy-dissipating support member 702 are positioned and assembled in the factory, and the steel truss structure is formed by welding or bolting.

[0044] The steel truss structure is positioned and connected to the first outward short beam 101 and the second outward short beam 201 by the first high-strength bolt group 102 and the second high-strength bolt group 202, respectively.

[0045] Position and install the first energy-consuming steel plate 105 and the second energy-consuming steel plate 205;

[0046] Position and install the first reset disc spring assembly 103 and the second reset disc spring assembly 203.

[0047] Compared with existing technologies, the two-point suspended energy-dissipating self-resetting steel truss described in the above embodiments mainly adopts a passive seismic design method for traditional reinforced concrete chimneys, resulting in increased seismic response, increased structural area, and significantly increased costs. This leads to lower seismic design safety and higher costs for chimneys. This invention features a simple structure and convenient installation. The web of the energy-dissipating self-resetting component primarily bears vertical shear force, while the energy-dissipating steel plate and the reset disc spring assembly primarily bear horizontal force and bending moment. Under seismic action, the energy-dissipating steel plate on the outer side undergoes significant elastoplastic deformation during rotation, absorbing seismic energy. After deformation, the reset disc spring assembly stores substantial elastic potential energy, causing the rotated steel beam to approach zero position, thus reducing residual structural deformation after the earthquake. Furthermore, the energy-dissipating steel plate and disc spring reset assembly are bolted together, allowing for rapid replacement after significant deformation failure at a lower cost. This invention effectively improves the seismic toughness of integrated building, decoration, and structure chimneys, ensuring the safety performance of the chimney's seismic design.

[0048] Obviously, the embodiments described above are merely preferred embodiments of this utility model, and not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A two-point suspended energy-dissipating self-resetting steel truss, characterized in that, include: The system comprises a first energy-consuming self-resetting component, a second energy-consuming self-resetting component, a first truss beam, a second truss beam, and a truss column. One end of the first truss beam is connected to one end of the second truss beam through the truss column. The other end of the first truss beam is provided with the first energy-consuming self-resetting component, and the other end of the second truss beam is provided with the second energy-consuming self-resetting component. The first energy-consuming self-resetting component is installed on a first mounting component on the chimney wall, and the second energy-consuming self-resetting component is installed on a second mounting component on the chimney wall. The first energy-consuming self-resetting component includes a first extended short beam, a first high-strength bolt group, a first reset disc spring assembly, and a first fixed stiffening rib. The first extended short beam is connected to the first truss beam at the web through the first high-strength bolt group. One end of the first fixed stiffening rib is connected to the first extended short beam, and the other end is connected to the first truss beam. The first reset disc spring assembly is provided between the two ends of the first fixed stiffening rib. The second energy-consuming self-resetting component includes a second extended short beam, a second high-strength bolt group, a second reset disc spring assembly, and a second fixed stiffening rib. The second extended short beam is connected to the second truss beam at the web through the second high-strength bolt group. One end of the second fixed stiffening rib is connected to the second extended short beam, and the other end is connected to the second truss beam. The second reset disc spring assembly is provided between the two ends of the second fixed stiffening rib.

2. The two-point suspended energy-dissipating self-resetting steel truss according to claim 1, characterized in that, It also includes a first energy-dissipating support member, one end of which is connected to the first truss beam and the other end of which is connected to the truss column.

3. A two-point suspended energy-dissipating self-resetting steel truss according to claim 2, characterized in that, It also includes a second energy-dissipating support, one end of which is connected to the first truss beam and the other end of which is connected to the second mounting component.

4. A two-point suspended energy-dissipating self-resetting steel truss according to claim 3, characterized in that, It also includes a first web member, one end of which is connected to the truss column and the other end of which is connected to the chimney wall.

5. A two-point suspended energy-dissipating self-resetting steel truss according to claim 4, characterized in that, It also includes a second web member, one end of which is connected to the second energy-dissipating support member, and the other end of which is connected to the first mounting member.

6. A two-point suspended energy-dissipating self-resetting steel truss according to claim 1, characterized in that, The first energy-consuming self-resetting component also includes a first energy-consuming steel plate, the two ends of which are respectively connected to the flange of the first extended short beam and the flange of the first truss beam.

7. A two-point suspended energy-dissipating self-resetting steel truss according to claim 1, characterized in that, The second energy-consuming self-resetting component also includes a second energy-consuming steel plate, the two ends of which are respectively connected to the flange of the second extended short beam and the flange of the second truss beam.

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