Steel frame structure with double assembly type energy consumption sections

Abstract

The utility model relates to a steel frame structure with double assembly type energy consumption sections. One truss in the steel frame structure comprises a plurality of first span structures and at least one second span structure. In the first span structure, the two ends of a frame beam are connected with the frame columns through energy dissipation beam sections. In the second span structure, two interlayer short columns are arranged between adjacent floor frame beams, and the two interlayer short columns in the same floor are connected through an energy dissipation column section. By introducing the fabricated and replaceable energy dissipation beam sections and the energy dissipation column sections, a plurality of anti-seismic defense lines are formed, earthquake damage parts of the steel frame structure are concentrated on the two small fabricated energy dissipation components, the main body beam and column components are prevented from being damaged, only the damaged energy dissipation beam sections and the damaged energy dissipation column sections need to be replaced after an earthquake, and the construction cost is reduced. And rapid repair of the structure can be realized.

Description

Technical Field

[0001] This utility model relates to the field of building structure engineering technology, and in particular to a steel frame structure with dual prefabricated energy-consuming segments. Background Technology

[0002] Steel frame structures are the most common structural form in steel structure buildings. Previous earthquake damage surveys have shown that traditional steel frame structures are prone to varying degrees of damage to their main beams and columns during earthquakes, sometimes even leading to structural collapse, seriously threatening structural safety. Furthermore, repairing damaged beams and columns after an earthquake is difficult and costly. Therefore, improving the seismic performance and post-earthquake recoverability of steel frames through reasonable measures is of great significance for steel structure buildings in seismic fortification zones, especially in high-intensity seismic areas. Utility Model Content

[0003] In view of the problems that the energy dissipation capacity of steel frame structures under earthquake action is limited and the main beams and columns are difficult and costly to repair after the earthquake, this utility model provides a steel frame structure with dual prefabricated energy dissipation segments. The steel frame structure includes several frames, and each frame includes several first span structures and at least one second span structure.

[0004] The first span structure includes: two vertically arranged frame columns, several horizontally arranged frame beams between the two columns of frame columns, and several energy-dissipating beam segments; the two ends of the frame beams are connected to the frame columns through the energy-dissipating beam segments; there is a layer of inter-story structure between two adjacent frame beams;

[0005] The second span structure includes: two vertically arranged frame columns, several horizontally arranged frame beams between the two columns of frame columns, several vertically arranged inter-story short columns between the two columns of frame columns, and several energy-dissipating column segments; the two ends of the frame beams are connected to the frame columns; there is an inter-story structure between two adjacent frame beams, and two inter-story short columns are arranged in each story, with adjacent inter-story short columns in the same story connected by the energy-dissipating column segments; several inter-story short columns are arranged in the same column in this span;

[0006] The first span structure and the second span structure that are adjacent to each other, or between two adjacent first span structures, share a column of the frame columns.

[0007] Furthermore, the inter-story short columns are connected to the frame beams by high-strength bolts.

[0008] Furthermore, the energy-dissipating beam segment is an H-beam, welded from a web and two first flanges, with the distance between the two first flanges being the cross-sectional height; the two first flanges of the energy-dissipating beam segment are horizontally arranged; the cross-sectional height of the energy-dissipating beam segment is less than the cross-sectional height of the frame beam connected to it.

[0009] Furthermore, the first flange of the energy-dissipating beam segment is hyperbolic, with the width of the first flange being the smallest in the middle and the largest at both sides.

[0010] Furthermore, the energy-dissipating column segment is an H-beam, welded from one web and two second flanges, with the distance between the two second flanges being the cross-sectional height; the two second flanges of the energy-dissipating column segment are vertically arranged; the cross-sectional height of the energy-dissipating column segment is less than the cross-sectional height of the frame column, and its cross-sectional size is less than the cross-sectional size of the inter-story short column connected to it.

[0011] Furthermore, end plates are welded to both ends of the energy-dissipating beam segment, and bolt holes are provided on the end plates. The end plates at both ends of the energy-dissipating beam segment are connected to the frame column and the frame beam respectively by high-strength bolts.

[0012] Furthermore, the end plates are welded to both the upper and lower ends of the energy-consuming column segment, and bolt holes are provided on the end plates. The end plates at both ends of the energy-consuming column segment are respectively connected to the upper and lower interlayer short columns by high-strength bolts.

[0013] Compared with the prior art, this utility model has the following beneficial effects:

[0014] By introducing prefabricated, replaceable energy-dissipating beam segments and energy-dissipating column segments, multiple seismic defense lines are formed. The seismic damage to the steel frame structure is concentrated in two types of small prefabricated energy-dissipating components, thus protecting the main beam and column components from damage. After an earthquake, only the damaged energy-dissipating beam segments and energy-dissipating column segments need to be replaced to achieve rapid structural repair, which greatly reduces the difficulty of repair and saves repair costs. Attached Figure Description

[0015] Figure 1 This is a structural elevation view of an embodiment of the present utility model;

[0016] Figure 2 This is a three-dimensional detailed view of the connection point of this utility model;

[0017] Figure 3 This is a detailed drawing of the energy-dissipating beam segment of this utility model;

[0018] Figure 4 This is a detailed drawing of the energy-consuming column segment of this utility model;

[0019] Figure 5 This is a schematic diagram of the connection of the energy-dissipating beam segment of this utility model;

[0020] Figure 6 This is a schematic diagram of the connection of the energy-consuming column segment of this utility model;

[0021] In the diagram: 1. Frame column; 2. Frame beam; 3. Inter-story short column; 4. Energy dissipation beam segment; 5. Energy dissipation column segment; 6. End plate; 7. Web plate; 8. First flange plate; 9. Second flange plate. Detailed Implementation

[0022] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0023] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. The terms "upper," "lower," "front," "rear," "top," "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or part referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. It should be understood that such data can be interchanged where appropriate for the embodiments of this utility model described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0024] This utility model provides a steel frame structure with dual prefabricated energy-consuming segments. The steel frame structure includes several frames, and each frame includes several first span structures and at least one second span structure.

[0025] The first span structure includes: two vertically arranged frame columns 1, several horizontally arranged frame beams 2 between the two rows of frame columns 1, and several energy-dissipating beam segments 4; the two ends of the frame beams 2 are connected to the frame columns 1 through the energy-dissipating beam segments 4; there is a layer of inter-story structure between two adjacent frame beams 2.

[0026] The second span structure includes: two vertically arranged frame columns 1, several horizontally arranged frame beams 2 between the two rows of frame columns 1, several vertically arranged inter-story short columns 3 between the two rows of frame columns 1, and several energy-dissipating column segments 5; the two ends of the frame beams 2 are connected to the frame columns 1; there is an inter-story structure between two adjacent frame beams 2, and two inter-story short columns 3 are arranged in each story, and adjacent inter-story short columns 3 in the same story are connected by energy-dissipating column segments 5; several inter-story short columns 3 are arranged in the same row in this span;

[0027] A single column of frame columns 1 is shared between adjacent first span structures and second span structures, or between two adjacent first span structures.

[0028] During an earthquake, energy-dissipating beam segment 4 and energy-dissipating column segment 5 are relatively weak points in the structure. Energy-dissipating beam segment 4 undergoes bending yielding deformation, and energy-dissipating column segment 5 undergoes shear yielding deformation. These two components yield and are damaged before the frame columns 1 and frame beams 2 of the main steel frame structure. This concentrates the earthquake damage to the steel frame structure in energy-dissipating beam segment 4 and energy-dissipating column segment 5, effectively protecting the main beam and column components and improving the overall seismic performance of the structure.

[0029] Meanwhile, the energy-dissipating beam segment 4 and the energy-dissipating column segment 5 are small prefabricated energy-dissipating components. After the earthquake, the damaged prefabricated energy-dissipating components can be disassembled and replaced to quickly complete the structural repair, which greatly reduces the repair difficulty and saves repair costs.

[0030] like Figure 1 As shown, in this embodiment, a steel frame structure with dual prefabricated energy-consuming segments includes two first span structures and one second span structure. The position of the second span structure in each frame is not fixed. In this embodiment, the second span structure is set between the two first span structures, and two inter-story short columns 3 are set between each floor.

[0031] Generally, such as Figure 2 As shown, the short column 3 between the floors is connected to the frame beam 2 by high-strength bolts.

[0032] Generally, such as Figure 3 As shown, energy-dissipating beam segment 4 is an H-beam, welded from a web 7 and two first flanges 8. The distance between the two first flanges 8 is the section height. The two first flanges 8 of energy-dissipating beam segment 4 are horizontally positioned. The section height of energy-dissipating beam segment 4 is less than the section height of the frame beam 2 connected to it.

[0033] Generally, the energy-dissipating column segment 5 is an H-beam, welded from a web 7 and two second flanges 9, with the distance between the two second flanges 9 being the section height. The two second flanges 9 of the energy-dissipating column segment 5 are vertically arranged. The section height of the energy-dissipating column segment 5 is less than the section height of the frame column 1, and its section size is smaller than the section size of the inter-story short column 3 connected to it.

[0034] By setting the dimensions of energy-dissipating beam segment 4 and energy-dissipating column segment 5 to be significantly smaller than those of the main frame columns 1 and frame beams 2, it is ensured that energy-dissipating beam segment 4 and energy-dissipating column segment 5 are relatively weak points in the entire steel frame structure, and thus yield deformation occurs first. Under seismic loading, energy-dissipating beam segment 4 undergoes bending yield deformation, primarily dissipating energy through the first flange 8; energy-dissipating column segment 5 undergoes shear yield deformation, primarily dissipating energy through the web 7.

[0035] Both ends of the energy-dissipating beam segment 4 are welded with end plates 6, and bolt holes are opened on the end plates 6. The end plates 6 at both ends of the energy-dissipating beam segment 4 are connected to the frame column 1 and the frame beam 2 respectively by high-strength bolts.

[0036] Both ends of the energy-consuming column segment 5 are welded with end plates 6, and bolt holes are opened on the end plates 6. The end plates 6 at both ends of the energy-consuming column segment 5 are connected to the upper and lower interlayer short columns 3 by high-strength bolts respectively.

[0037] Preferably, the first flange 8 of the energy-dissipating beam segment 4 is hyperbolic, with the width of the first flange 8 being the smallest in the middle and the largest at both sides. This allows the concentrated yield position of the first flange 8 to shift from the end plate weld to the middle of the energy-dissipating beam segment 4, avoiding the part with the largest welding residual stress, which is beneficial to the low-cycle fatigue performance of the energy-dissipating beam segment.

[0038] This utility model provides a steel frame structure with dual prefabricated energy-dissipating segments, which can be applied to steel structure buildings in seismic fortification areas, especially high-intensity areas. Under seismic action, it has three seismic defense lines: energy-dissipating column segments 5, energy-dissipating beam segments 4, and main beam and column components (i.e., frame columns 1 and frame beams 2). Through multiple defense lines, a staged yielding seismic working mechanism is formed, thereby improving the seismic performance of the structure.

[0039] Under minor earthquakes, the structure remains elastic and requires no replacement of components after the earthquake. Under moderate earthquakes, energy-dissipating column segment 5 undergoes shear yielding, while the rest of the structure remains elastic; post-earthquake repair requires only replacement of the damaged energy-dissipating column segment 5. Under major earthquakes, energy-dissipating column segment 5 undergoes shear yielding, and energy-dissipating beam segment 4 undergoes flexural yielding; the rest of the structure remains elastic, and post-earthquake repair requires only replacement of both the damaged energy-dissipating column segment 5 and the energy-dissipating beam segment 4. This allows for precise control of the yielding sequence of energy-dissipating components and the location of structural damage under different levels of earthquake action. Furthermore, both types of energy-dissipating components are easily replaceable after earthquakes, thus giving the structure the characteristics of orderly yielding, controllable damage, and easy post-earthquake repair.

[0040] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of implementation of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this utility model, and all such improvements and modifications should be covered within the protection scope of this utility model.

Claims

1. A steel frame structure with dual prefabricated energy-dissipating segments, characterized in that: The steel frame structure comprises several frames, and each frame comprises several first span structures and at least one second span structure; The first span structure includes: two vertically arranged frame columns (1), several horizontally arranged frame beams (2) between the two columns of frame columns (1), and several energy-dissipating beam segments (4); the two ends of the frame beams (2) are connected to the frame columns (1) through the energy-dissipating beam segments (4); the space between two adjacent frame beams (2) is a layer of interlayer structure; The second span structure includes: two vertically arranged frame columns (1), several horizontally arranged frame beams (2) between the two columns of frame columns (1), several vertically arranged inter-story short columns (3) between the two columns of frame columns (1), and several energy-dissipating column segments (5); the two ends of the frame beams (2) are connected to the frame columns (1); there is an inter-story structure between two vertically adjacent frame beams (2), and two inter-story short columns (3) are arranged in each layer. The two adjacent inter-story short columns (3) in the same layer are connected by the energy-dissipating column segments (5); several inter-story short columns (3) are arranged in the same column in this span; The first span structure and the second span structure that are adjacent to each other or between two adjacent first span structures share a column of the frame column (1).

2. A steel frame structure with dual prefabricated energy-dissipating segments according to claim 1, characterized in that, The inter-story short columns (3) are connected to the frame beams (2) by high-strength bolts.

3. A steel frame structure with dual prefabricated energy-dissipating segments according to claim 1, characterized in that, The energy-dissipating beam segment (4) is an H-beam, which is welded from a web plate (7) and two first flanges (8). The distance between the two first flanges (8) is the cross-sectional height. The two first flanges (8) of the energy-dissipating beam segment (4) are set horizontally. The cross-sectional height of the energy-dissipating beam segment (4) is less than the cross-sectional height of the frame beam (2) connected to it.

4. A steel frame structure with dual prefabricated energy-dissipating segments according to claim 3, characterized in that, The first flange (8) of the energy-dissipating beam segment (4) is hyperbolic, with the width of the first flange (8) being the smallest in the middle and the largest on both sides.

5. A steel frame structure with dual prefabricated energy-dissipating segments according to claim 3, characterized in that, The energy-dissipating column segment (5) is an H-beam, which is welded from one web plate (7) and two second flanges (9). The distance between the two second flanges (9) is the cross-sectional height. The two second flanges (9) of the energy-dissipating column segment (5) are arranged vertically. The cross-sectional height of the energy-dissipating column segment (5) is less than the cross-sectional height of the frame column (1), and its cross-sectional size is less than the cross-sectional size of the inter-story short column (3) connected to it.

6. A steel frame structure with dual prefabricated energy-dissipating segments according to claim 1, characterized in that, Both ends of the energy-dissipating beam segment (4) are welded with end plates (6), and bolt holes are provided on the end plates (6). The end plates (6) at both ends of the energy-dissipating beam segment (4) are connected to the frame column (1) and the frame beam (2) respectively by high-strength bolts.

7. A steel frame structure with dual prefabricated energy-dissipating segments according to claim 6, characterized in that, The end plates (6) are welded to both the upper and lower ends of the energy-consuming column segment (5). Bolt holes are provided on the end plates (6). The end plates (6) at both ends of the energy-consuming column segment (5) are connected to the upper and lower interlayer short columns (3) respectively by high-strength bolts.

Images