Energy dissipation beam section and eccentric supporting steel frame

Abstract

The invention discloses an energy dissipation beam section and an eccentric supporting steel frame, and belongs to the technical field of seismic resistance and shock absorption of structural engineering. Wherein the energy dissipation beam section comprises an energy dissipation main body which is of a hollow box-shaped structure; the end plates are mounted at the two ends of the energy dissipation main body; and the foam concrete is filled in the energy consumption main body. The eccentric supporting steel frame comprises two steel frame columns which are oppositely arranged. One end of the steel frame beam is connected with the upper end of the steel frame column; one end of the inclined support is connected with the steel frame column, and the other end of the inclined support is connected with one end, far away from the steel frame column, of the steel frame beam; the two ends of the energy dissipation beam section are detachably connected with the ends, away from the steel frame columns, of the steel frame beams through the end plates. The problem that an existing energy dissipation beam section needs to adopt a small width-to-thickness ratio and multiple stiffening ribs to give consideration to energy dissipation and buckling instability prevention is solved, the traditional energy dissipation beam section is optimized, the steel consumption is reduced on the premise that the performance is guaranteed, and then the production cost is reduced.

Description

Technical Field

[0001] This invention belongs to the field of seismic resistance and vibration reduction technology in structural engineering, and specifically relates to an energy-dissipating beam segment and an eccentrically supported steel frame. Background Technology

[0002] Eccentrically braced steel frame structures are a type of high-rise steel structure system suitable for areas with high seismic fortification intensity. They possess high lateral stiffness (the ability to resist lateral deformation) and plastic energy dissipation capacity, and are an improvement upon the centrally braced frame structure system. The design intent of eccentrically braced steel frame structures is to reduce the damage and response of the overall structure under seismic loads by placing an energy-dissipating beam segment in the middle of the structure and using the plastic deformation of this segment to dissipate the energy exerted on the structure by the seismic load.

[0003] Energy-dissipating beam segments are typically installed between the intersections of the support axes and the beam axes on both sides of an eccentrically supported steel frame structure. Because these segments need to dissipate seismic energy through significant plastic deformation, their plates must meet stringent requirements. Furthermore, to prevent local buckling and loss of energy-dissipating capacity during shear / bending deformation, numerous internal stiffeners are required to ensure that the segments do not become unstable during plastic deformation. The primary function of these stiffeners is to prevent buckling instability; they do not directly contribute to seismic energy dissipation. Due to the extensive use of stiffeners, the steel consumption for energy-dissipating beam segments is relatively high, resulting in higher construction costs.

[0004] In view of the above situation, there is an urgent need to provide a new type of energy-dissipating beam segment that can solve the problem that existing energy-dissipating beam segments need to adopt a smaller width-to-thickness ratio and more stiffeners to balance energy dissipation and buckling instability prevention. By optimizing the traditional energy-dissipating beam segment, the amount of steel used can be reduced while ensuring performance, thereby reducing production costs.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of the invention and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0006] The purpose of this invention is to solve the problem that existing energy-dissipating beam segments require a smaller width-to-thickness ratio and more stiffeners to balance energy dissipation and buckling instability prevention, which leads to increased production costs. This invention provides an energy-dissipating beam segment and an eccentrically supported steel frame.

[0007] The first aspect of the present invention provides an energy-dissipating beam segment, comprising: The main energy-consuming component is a hollow box-shaped structure. End plates are installed at both ends of the energy-consuming body; as well as, Foamed concrete is used to fill the interior of the energy-consuming body.

[0008] In one embodiment of the present invention, the energy-consuming body includes a web and wing plates; The two web plates are arranged parallel to each other and vertically; the two wing plates are arranged parallel to each other and horizontally; the two web plates and the two wing plates together form a box-shaped structure of the energy-consuming body.

[0009] In one embodiment of the present invention, the energy-dissipating beam segment further includes an energy-dissipating plate; The energy-dissipating plate, numbering no less than one, is parallel to the web plate, uniformly arranged inside the energy-dissipating body, and immersed in the foamed concrete.

[0010] In one embodiment of the present invention, the two ends of the energy-consuming board are connected to the end plate.

[0011] In one embodiment of the present invention, the energy-dissipating beam segment further includes an energy-dissipating rod; The energy-dissipating rod, numbering no less than one, is evenly arranged inside the energy-dissipating body and submerged in the foamed concrete, forming an angle with the horizontal direction and / or an angle with the vertical direction.

[0012] In one embodiment of the present invention, one end of the energy-dissipating rod is connected to the upper or lower edge of one of the end plates, and the other end is a free end.

[0013] In one embodiment of the present invention, an anchor plate is provided at the free end of the energy dissipation rod.

[0014] In one embodiment of the present invention, the energy-dissipating beam segment further includes a strain sensor; The strain sensor is disposed on the energy-consuming body near the end plate and / or on the web near the end plate, and is configured to collect the deformation of the energy-consuming body.

[0015] In one embodiment of the present invention, the energy-consuming body is provided with filling holes and venting holes for filling the foamed concrete.

[0016] A second aspect of the present invention provides an eccentrically supported steel frame, comprising: Two steel-framed columns arranged opposite each other; A steel frame beam, one end of which is connected to the upper end of the steel frame column; The diagonal brace is connected at one end to the steel frame column and at the other end to the steel frame beam away from the steel frame column. In addition, the energy-dissipating beam segment is detachably connected at both ends to the end of the steel frame beam away from the steel frame column via the end plates. Compared with the prior art, the technical effects achieved by the present invention are as follows: 1. Setting up a box-type energy-dissipating main body can dissipate more seismic energy, thus protecting the overall structure of the steel frame from damage and providing filling space for foam concrete; 2. Filling the energy-dissipating body with foamed concrete can utilize the good plastic deformation capacity of foamed concrete, as well as its confinement effect and high adhesion with the web and flange, to directly participate in energy dissipation, thereby improving the overall energy dissipation performance of the energy-dissipating beam segment. 3. By utilizing the adjustable compressive strength of foamed concrete, the density of foamed concrete can be adjusted according to the seismic fortification intensity of different regions to obtain different compressive strength properties. Through the confinement effect and high adhesion between it and the web and flange, the strength of the overall energy-dissipating beam segment is increased. This can relatively increase the width-to-thickness ratio limit of the web and flange and completely replace stiffening ribs, thereby preventing the instability and buckling of the energy-dissipating beam segment, effectively reducing the steel consumption of the energy-dissipating beam segment and thus reducing production costs. 4. By utilizing the lightweight properties of foamed concrete, the weight of the overall steel frame structure is reduced while ensuring that the energy-dissipating beam segments have effective strength and good energy dissipation performance. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of an energy-dissipating beam segment according to a certain embodiment of the present invention; Figure 2 This is a top view schematic diagram of the overall structure of an energy-dissipating beam segment according to an embodiment of the present invention; Figure 3 This is a right-side view of the overall structure of an energy-dissipating beam segment according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the overall structure of another embodiment of the energy-dissipating beam segment according to one embodiment of the present invention; Figure 5 This is a schematic diagram of the initial state of the internal structure of the energy-dissipating beam segment anchor according to an embodiment of the present invention. Figure 6 This is a schematic diagram of the internal structure of the energy-dissipating beam segment anchor in the open state according to an embodiment of the present invention. Figure 7 This is a schematic diagram of the overall structure of an eccentrically supported steel frame according to an embodiment of the present invention.

[0018] Explanation of key figure labels: 1-Energy-dissipating body, 101-Web plate, 102-Wing plate, 103-Filling hole, 104-Exhaust hole, 2-End plate, 201-Bolt, 3-Foamed concrete, 4-Energy-dissipating plate, 5-Energy-dissipating rod, 501-Anchor plate, 6-Strain sensor, 7-Anchor, 701-Shell, 702-Electromagnetic switch, 703-Anchor, 704-Conical slider, 705-Slide groove, 8-Steel frame column, 9-Steel frame beam, 10-Diagonal support, 11-Energy-dissipating beam segment. Detailed Implementation

[0019] Unless otherwise expressly stated, throughout the specification and claims, the term "comprising" or its variations such as "including" or "comprises" shall be understood to include the stated elements or components without excluding other elements or other components.

[0020] It should be noted that when a component is referred to as "fixed to," "placed," "equipped with," "provided with," "arranged on," or "connected to" another component, it can be directly on the other component or may have an intervening component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or may have an intervening component present.

[0021] The technical solution of the present invention is illustrated below through specific embodiments. It should be understood that the one or more steps mentioned in the present invention do not preclude the existence of other methods and steps before or after the combined steps, or that other methods and steps may be inserted between these explicitly mentioned steps. It should also be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Unless otherwise stated, the numbering of each method step is only for the purpose of identifying each method step, and not for limiting the order of each method or limiting the scope of the present invention. Changes or adjustments to their relative relationships, without substantial changes to the technical content, can also be considered as within the scope of the present invention.

[0022] The raw materials and instruments used in the examples are not subject to any specific restrictions on their source; they can be purchased from the market or prepared according to conventional methods known to those skilled in the art.

[0023] Please refer to Figures 1 to 7 The content shown is for better understanding of the specific structure of the present invention. According to a preferred embodiment of the present invention, an energy-dissipating beam segment 11 is shown as follows: Figure 1 and Figure 2 As shown, it includes: energy-consuming main body 1, end plate 2, and foamed concrete 3.

[0024] In this embodiment, the energy-consuming body 1 is a hollow box-shaped structure, including a web 101 and two wing plates 102. The two web plates 101 are parallel to each other and arranged vertically. The two wing plates 102 are parallel to each other and arranged horizontally. The two web plates 101 and the two wing plates 102 together form the box-shaped structure of the energy-consuming body 1.

[0025] Specifically, both the web plate 101 and the flange plate 102 are made of steel and can be fixed to each other by welding, or the steel plates can be bent to form a box-shaped structure and the joints can be welded together.

[0026] In this embodiment, the end plate 2 is made of steel and is installed at both ends of the energy-consuming body 1.

[0027] Specifically, the end plates 2 can be welded to both ends of the energy-consuming body 1. The end plates 2 have bolt holes 201 and are detachably connected to the steel frame beam 9 (described later) via bolts 201.

[0028] In this embodiment, foamed concrete 3 is filled inside the energy-consuming body 1.

[0029] Specifically, the energy-consuming body 1 is provided with filling holes 103 and vent holes 104 for filling with foamed concrete 3. The vent holes 104 can prevent air pressure from forming inside the energy-consuming body 1, which would prevent the foamed concrete 3 from being completely filled. After filling, the filling holes 103 and vent holes 104 should be sealed with structural adhesive or welding flux.

[0030] Specifically, foamed concrete (also known as foamed cement) is a lightweight concrete-based composite material containing a large number of uniformly distributed closed pores. Its biggest difference from ordinary concrete is that it does not use coarse aggregates and introduces a large number of air bubbles, forming a porous internal structure. Compared with ordinary concrete, it has outstanding characteristics such as: lightweight, adjustable compressive strength, good plastic deformation capacity, thermal insulation, sound insulation and absorption, fire resistance, durability, and ease of filling and construction. Furthermore, there is an interaction between foamed concrete and steel plates. This interaction manifests as a confinement effect between the plates and the foamed concrete, which allows the foamed concrete to restrain the buckling instability of the steel plate. During buckling, the steel plate is supported by the foamed concrete at the contact point. Moreover, foamed concrete possesses the gelling adhesiveness inherent in concrete substrates, enabling it to achieve a certain degree of adhesion to the inner surface of the steel body. In engineering, it can be directly poured into the interior of the steel body to form a strong bonding layer. The bond between the two is not simply physical adsorption, but a dual action of chemical bonding and physical-mechanical interlocking. This is the main reason why it can firmly adhere to the steel body, thus preventing delamination and detachment.

[0031] In practice, foamed concrete 3 is used to fill the interior of the energy-dissipating main body 1. Through the confinement effect between it and the steel plate, and by utilizing its own strength and adhesion, it can improve the width-to-thickness ratio of the plates (making the web 101 and flange 102 more slender), replace stiffening ribs, and, due to its better plastic deformation capacity, adhesion capacity, and lightweight characteristics than ordinary concrete, can reduce steel consumption, improve energy dissipation performance, and reduce structural weight, providing favorable conditions for the structural stability, economic practicality, and earthquake resistance of the main building. Furthermore, during an earthquake, the foamed concrete 3 will develop diagonal cracks due to the shear deformation of the energy-dissipating beam segment 11, and the friction between these cracks can further increase the dissipation of seismic energy. Therefore, during an earthquake, the foamed concrete 3 will not gradually fail due to energy-dissipating deformation; on the contrary, it will increase energy dissipation to a certain extent, further providing reliable protection for the main building.

[0032] In some embodiments, such as Figure 2 and Figure 3 As shown, the energy-dissipating beam segment 11 also includes an energy-dissipating plate 4.

[0033] In this embodiment, the energy dissipation plate 4 can be made of the same steel material as the energy dissipation body 1, and the number is not less than one. In this embodiment, a structure of two energy dissipation plates 4 is used, but three or more energy dissipation plates 4 can also be set according to historical earthquake data.

[0034] Specifically, the energy-dissipating plate 4 is parallel to the web plate 101, evenly arranged inside the energy-dissipating body 1 and submerged in the foamed concrete 3. A construction process can be adopted where the energy-dissipating plate 4 is installed first, followed by filling with the foamed concrete 3. The two ends of the energy-dissipating plate 4 can be fixedly connected to the end plate 2 by welding.

[0035] Specifically, the upper and lower edges of the energy-consuming plate 4 can be welded to the upper and lower wing plates 102 to further increase energy-consuming performance, or they can be left unconnected.

[0036] It should be noted that the energy-dissipating plate 4 and the stiffening ribs have different functions. The stiffening ribs prevent buckling of the energy-dissipating beam segment 11 through their in-plane stiffness; their plastic deformation capacity is relatively weak, and their arrangement within the energy-dissipating beam segment 11 is to increase overall strength by being fixedly connected to the web plate 101 laterally or longitudinally. The main purpose of this connection method is to increase the out-of-plane stiffness of the web plate 101, thereby preventing out-of-plane buckling of the energy-dissipating beam segment 11 under seismic lateral forces. The energy-dissipating plate 4, however, is arranged longitudinally throughout the structure and is parallel to the web plate 101 without any connection; therefore, it does not increase the lateral strength of the web plate 101. Its purpose is equivalent to increasing the number of web plates 101, thereby absorbing more energy transmitted to the structure by the earthquake, thus improving the overall energy-dissipating performance of the energy-dissipating beam segment 11. To increase the plastic deformation capacity of the energy-dissipating plate 4, steel with low yield point, high ductility, and high toughness can be used, such as, but not limited to, ordinary carbon structural steel, LY160, and LY225 steel materials.

[0037] In practice, the energy dissipation plate 4, unlike the stiffening rib, can improve the energy dissipation performance of the energy dissipation beam segment 11. Different numbers of energy dissipation plates 4 can be set according to different regions to better adapt to regional differences in fortification intensity.

[0038] In some embodiments, such as Figures 1-3 As shown, the energy-dissipating beam segment 11 also includes an energy-dissipating rod 5.

[0039] Specifically, the energy-consuming rod 5 can be made of the same material as the energy-consuming plate 4, and the number is not less than one. In this embodiment, a structure of 6 energy-consuming rods 5 is used, which are evenly arranged inside the energy-consuming body 1 and immersed in the foamed concrete 3, with an angle to the horizontal direction and / or an angle to the vertical direction.

[0040] In this embodiment, two evenly spaced energy-dissipating plates 4 are provided. Two energy-dissipating rods 5 are symmetrically arranged between the energy-dissipating plates 4 and between the energy-dissipating plates 4 and the web plate 101, for a total of six rods. The more rods, the more energy is dissipated. Each energy-dissipating rod 5 is arranged at an angle. For example, one end of the energy-dissipating rod 5 is located at the upper edge of one end plate 2 of the energy-dissipating beam segment 11, and the other end extends to the lower edge of the other end plate 2 of the energy-dissipating beam segment 11, forming an angle with the horizontal direction. Alternatively, an angle can also be formed in the vertical direction; for example, one end of the energy-dissipating rod 5 is located on the left side of the upper edge of one end plate 2 of the energy-dissipating beam segment 11, and the other end extends to the right side of the lower edge of the other end plate 2 of the energy-dissipating beam segment 11, forming an angle with the vertical direction.

[0041] In this embodiment, one end of the energy-dissipating rod 5 is connected to the upper or lower edge of an end plate 2, and the other end is a free end. An anchor plate 501 is provided at the free end of the energy-dissipating rod 5.

[0042] Specifically, one end of the energy-dissipating rod 5 can be fixed to the end plate 2 by welding or bonding (structural adhesive). The other end extends to the other end of the energy-dissipating beam segment 11 and is a free end without connection, and the length of the energy-dissipating rod 5 is extended as much as possible. A construction process can be adopted in which the energy-dissipating plate 4 and the energy-dissipating rod 5 are installed first, and then the foamed concrete 3 is filled.

[0043] Specifically, the anchor plate 501 can be a flat plate structure, welded and fixed to the free end of the energy dissipation rod 5.

[0044] In specific implementation, energy-dissipating rods 5 are installed within the foamed concrete 3, which increases the adhesion between the energy-dissipating rods 5 and the foamed concrete 3. The tensile plastic deformation of the energy-dissipating rods 5 enhances the overall energy dissipation performance of the energy-dissipating beam segment 11. Anchor plates 501 create fixing points between the free ends of the energy-dissipating rods 5 and the foamed concrete 3, further increasing the connection strength between the energy-dissipating rods 5 and the foamed concrete 3. During an earthquake, both the energy-dissipating plate 4 and the energy-dissipating rods 5 are tightly bonded to the foamed concrete 3. When the energy-dissipating beam segment 11 undergoes shear deformation, the foamed concrete 3, the energy-dissipating plate 4, and the energy-dissipating rods 5 form a unified whole, all capable of dissipating seismic energy through their tensile plastic deformation. Therefore, the energy-dissipating beam segment 11 provided by this invention increases the overall strength of the energy-dissipating beam segment 11 by utilizing the foamed concrete 3 to prevent buckling instability, while also improving its energy dissipation performance. Furthermore, the adhesion between the energy-dissipating plate 4 and the energy-dissipating rods 5 and the foamed concrete 3 further enhances the overall energy dissipation performance of the energy-dissipating beam segment 11.

[0045] In some embodiments, such as Figure 1 As shown, the energy-dissipating beam segment 11 also includes a strain sensor 6.

[0046] Specifically, strain sensor 6 is a detection device that converts mechanical parameters such as tensile / compressive strain and shear strain of a component into electrical signals. Its main function is to monitor the strain state of the structure / component in real time and determine its stress, deformation, and safety conditions. In this embodiment, a resistive strain sensor 6, a fiber optic strain sensor 6, or a carbon nanotube resin-based strain sensor 6 can be used, but is not limited to those in the prior art.

[0047] Specifically, the strain sensor 6 can be installed by adhesive on the energy-dissipating body 1 near the end plate 2, and / or on the web 101 near the end plate 2, to collect the deformation of the energy-dissipating body 1. Multiple strain sensors 6 can also be installed, such as on the energy-dissipating plate 4 near the end plate 2, to collect the deformation of the energy-dissipating plate 4.

[0048] Specifically, since the extent of damage to the energy-dissipating beam segment 11 after the earthquake cannot be determined by visual inspection, the strain sensor 6 can collect the deformation of the plate caused by strain deformation and evaluate it to determine the damage of the energy-dissipating beam segment 11, providing a reference for whether it needs to be replaced or repaired.

[0049] In practice, the strain sensor 6 can collect the deformation and strain data of the energy-dissipating beam segment 11 during the earthquake. The damage degree of the energy-dissipating beam segment 11 after the earthquake can be quantified by using existing model inversion or empirical formula estimation. This helps technicians assess whether the energy-dissipating beam segment 11 needs to be repaired or replaced, saving assessment time and reducing costs, and thus providing a reliable basis for post-earthquake assessment.

[0050] The energy-dissipating beam segment 11 provided by this invention undergoes primarily shear deformation under seismic reciprocating forces. Its energy dissipation relies on the energy-dissipating main body 1 and the energy-dissipating plate 4 connected to the end plate 2. Therefore, a single or multiple energy-dissipating plate 4 structure can be adopted for different seismic conditions. The mutual adhesion and confinement effect of the foamed concrete 3 with the web 101, energy-dissipating plate 4, and energy-dissipating rod 5 effectively restricts the out-of-plane deformation of the web 101, energy-dissipating plate 4, and energy-dissipating rod 5, ensuring that the plastic deformation mainly occurs within the plane of the web 101, energy-dissipating plate 4, and energy-dissipating rod 5, thus significantly improving the energy dissipation efficiency of the web 101, energy-dissipating plate 4, and energy-dissipating rod 5 themselves. On the other hand, after undergoing significant plastic deformation, the foamed concrete 3 will form multiple diagonal cracks. The foamed concrete 3 on both sides of the cracks will rub against each other under reciprocating action. The diagonal cross energy dissipation rod 5 can tightly restrain the foamed concrete 3 on both sides of the diagonal cracks through the anchor plate 501 at one end, increasing the normal pressure on the contact surface and improving its friction energy dissipation capacity. Furthermore, under the constraint of the web plate 101, the energy dissipation plate 4, and the energy dissipation rod 5, the local foamed concrete 3 will undergo pore wall crushing and breakage, which can dissipate some energy.

[0051] In some embodiments, such as Figure 4 As shown, the energy-dissipating beam segment 11 also includes an adaptive energy-dissipating unit, which automatically adjusts the overall energy dissipation performance of the energy-dissipating beam segment 11 according to the earthquake intensity. The adaptive energy-dissipating unit can be connected to the building's mains power supply for power.

[0052] Specifically, the adaptive energy dissipation unit includes a control module (not shown in the figure), an acceleration sensor (not shown in the figure), and an anchor 7.

[0053] In this embodiment, both the accelerometer and the anchor 7 are electrically connected to the control module, or they can be connected wirelessly.

[0054] In this embodiment, the control module can be a PLC (PLC is the abbreviation for Programmable Logic Controller), or a circuit including at least one processor, or a circuit including at least one microcontroller, or a combination of multiple circuits or chips, as long as it can achieve the corresponding function; it is understood that for those skilled in the art, the control circuit can also be a common circuit composed of amplifiers, comparators, transistors, MOSFETs, etc., to implement the corresponding function in a purely hardware manner.

[0055] In this embodiment, the accelerometer can be installed on the energy-dissipating beam segment 11, and can be, but is not limited to, a piezoelectric accelerometer as used in the prior art. It can collect the amplitude of sway caused by the earthquake intensity in real time during the earthquake and transmit the data to the control module.

[0056] In this embodiment, as Figure 5 and Figure 6 As shown, the anchor 7 is fixedly installed on the energy dissipation rod 5. The energy dissipation rod 5 can be divided into two sections and fixed to both ends of the anchor 7 by welding to form an integral energy dissipation rod 5 structure.

[0057] Specifically, the anchor 7 includes a housing 701, an electromagnetic switch 702, anchors 703, and a conical slider 704. The electromagnetic switch 702, anchors 703, and conical slider 704 are all installed inside the housing 701. Several anchors 703 are evenly arranged along the circumference; this embodiment uses a structure with four anchors 703. One end of each anchor 703 is slidably installed in a groove 705 of the conical slider 704, and can be connected to the groove 705 using a roller structure. The other end extends to the outside of the housing 701 through a through-hole.

[0058] Specifically, the electromagnetic switch 702 is installed at one end inside the housing 701 and is electrically connected to the control module. The tapered slider 704 is installed at the other end inside the housing 701 and can move axially along the housing 701.

[0059] Specifically, the working principle of the adaptive energy dissipation unit is as follows: When no earthquake occurs, the anchors 703 of the anchor 7 are all inside the shell 701; when an earthquake occurs, the acceleration sensor collects the sway data of the energy dissipation beam segment 11 caused by the earthquake in real time and transmits it to the control module; the control module acquires the data and processes it, comparing it with a preset threshold; when the data is greater than the threshold, the control module sends a start command to the electromagnetic switch 702; the electromagnetic switch 702 is energized to generate electromagnetic force, which quickly attracts and moves the conical slider 704; the conical slider 704 pushes the anchor 703 connected to it to the outside of the shell 701; under the pushing force of the conical slider 704, the anchor 703 is driven into the foam concrete 3 and forms an adhesion force with the foam concrete 3; after the earthquake ends, the control module sends a disconnect command to the electromagnetic switch 702; the magnetic force of the electromagnetic switch 702 disappears, the conical slider 704 returns to its original position under the action of the return spring, and drives the anchor 703 to return to its original position through the slide groove 705.

[0060] Specifically, multiple anchors 7 can be set at different positions on an energy dissipation rod 5. The control module compares the value with different preset thresholds and can control different numbers of anchors 7 to be opened in order to adapt to earthquakes of different intensities. The greater the intensity, the more anchors 7 are opened.

[0061] In practice, an adaptive energy dissipation unit is set up, which can control the opening of the anchor 7 according to the magnitude of the earthquake. After the anchor 703 enters the foamed concrete 3, it increases the adhesion between the energy dissipation rod 5 and the foamed concrete 3, further increasing the overall energy dissipation performance of the energy dissipation beam segment 11. Moreover, multiple anchors 7 can be opened according to the increase of earthquake intensity, so as to obtain higher energy dissipation performance.

[0062] In another aspect, the present invention provides an eccentrically supported steel frame, such as Figure 7 As shown, it includes: steel frame column 8, steel frame beam 9, diagonal brace 10 and energy dissipation beam segment 11.

[0063] Specifically, the two steel frame columns are arranged in a relatively opposite manner.

[0064] Specifically, one end of the steel frame beam 9 is connected to the upper end of the steel frame column 8, which can be done by bolt 201 or by welding.

[0065] Specifically, the diagonal brace 10 is connected at one end to the steel frame column 8 and at the other end to the steel frame beam 9 away from the steel frame column 8. It can be connected by bolts 201 or by welding.

[0066] Specifically, the energy-dissipating beam segment 11 is detachably connected at both ends to the steel frame beam 9 away from the steel frame column 8 via end plates 2. The end plates 2 can be connected to the steel frame beam 9 using high-strength bolts 201. This facilitates replacement of the energy-dissipating beam segment 11 after an earthquake.

[0067] In specific implementation, the use of the energy-dissipating beam segment 11 provided by this invention in the eccentrically supported steel frame can reduce the weight of the main structure, increase or decrease the energy dissipation performance of the main structure with adjustability, and provide sufficient support strength, thus providing a reliable guarantee for the stability and seismic resistance requirements of the building structure.

[0068] The foregoing description of specific exemplary embodiments of the invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the invention, as well as various different choices and variations. The scope of the invention is intended to be defined by the claims and their equivalents.

Claims

1. An energy-dissipating beam segment, characterized in that, include: The main energy-consuming component is a hollow box-shaped structure. End plates are installed at both ends of the energy-consuming body; as well as, Foamed concrete is used to fill the interior of the energy-consuming body.

2. The energy-dissipating beam segment according to claim 1, characterized in that, The energy-consuming body includes a web and wing plates; The two web plates are arranged parallel to each other and vertically; the two wing plates are arranged parallel to each other and horizontally; the two web plates and the two wing plates together form a box-shaped structure of the energy-consuming body.

3. The energy-dissipating beam segment according to claim 2, characterized in that, The energy-dissipating beam segment also includes an energy-dissipating plate; The energy-dissipating plate, numbering no less than one, is parallel to the web plate, uniformly arranged inside the energy-dissipating body, and immersed in the foamed concrete.

4. The energy-dissipating beam segment according to claim 3, characterized in that, The two ends of the energy-consuming board are connected to the end plate.

5. The energy-dissipating beam segment according to claim 1, characterized in that, The energy-dissipating beam segment also includes an energy-dissipating rod; The energy-dissipating rod, numbering no less than one, is evenly arranged inside the energy-dissipating body and submerged in the foamed concrete, forming an angle with the horizontal direction and / or an angle with the vertical direction.

6. The energy-dissipating beam segment according to claim 5, characterized in that, One end of the energy-dissipating rod is connected to the upper or lower edge of one of the end plates, and the other end is a free end.

7. The energy-dissipating beam segment according to claim 6, characterized in that, An anchor plate is provided at the free end of the energy dissipation rod.

8. The energy-dissipating beam segment according to claim 2, characterized in that, The energy-dissipating beam segment also includes strain sensors; The strain sensor is disposed on the energy-consuming body near the end plate and / or on the web near the end plate, and is configured to collect the deformation of the energy-consuming body.

9. The energy-dissipating beam segment according to claim 6, characterized in that, The energy-consuming body is provided with filling holes and venting holes for filling the foamed concrete.

10. An eccentrically supported steel frame, characterized in that, include: Two steel-framed columns arranged opposite each other; A steel frame beam, one end of which is connected to the upper end of the steel frame column; The diagonal brace is connected at one end to the steel frame column and at the other end to the steel frame beam away from the steel frame column. as well as, The energy-dissipating beam segment according to any one of claims 1 to 9 has both ends detachably connected to the end of the steel frame beam away from the steel frame column via the end plate.

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