CN107165300A - A kind of diamond shaped openings H profile steel damper of anti-out-of-plane buckling - Google Patents
A kind of diamond shaped openings H profile steel damper of anti-out-of-plane buckling Download PDFInfo
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- CN107165300A CN107165300A CN201710473188.5A CN201710473188A CN107165300A CN 107165300 A CN107165300 A CN 107165300A CN 201710473188 A CN201710473188 A CN 201710473188A CN 107165300 A CN107165300 A CN 107165300A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 173
- 239000010959 steel Substances 0.000 title claims abstract description 173
- 229910003460 diamond Inorganic materials 0.000 title claims description 15
- 239000010432 diamond Substances 0.000 title claims description 15
- 239000002994 raw material Substances 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 2
- 239000000203 mixture Substances 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 abstract description 6
- 238000010521 absorption reaction Methods 0.000 abstract description 4
- 230000004044 response Effects 0.000 abstract description 4
- 230000035939 shock Effects 0.000 abstract description 4
- 238000005452 bending Methods 0.000 abstract description 2
- 230000002265 prevention Effects 0.000 abstract description 2
- 238000010008 shearing Methods 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 description 6
- 230000002457 bidirectional effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Business, Economics & Management (AREA)
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- Environmental & Geological Engineering (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Vibration Dampers (AREA)
- Vibration Prevention Devices (AREA)
Abstract
一种防面外屈曲的菱形开孔H型钢阻尼器，涉及工程结构防灾减震技术领域。由菱形开孔H型钢、外钢套管、内钢板、钢活塞、螺杆、高强螺栓以及螺帽构成。其中菱形开孔H型钢的上连接板和下连接板分别由高强螺栓与外钢套管和内钢板连接，内钢板与钢活塞焊接连接，外钢套管和钢活塞分别与螺杆连接。该阻尼器由螺杆与结构连接，并布置在结构变形较大处，当地震发生时，两个螺杆在轴向产生相对的轴向位移，使菱形开孔H型钢的腹板仅在平面内产生弯曲和剪切变形，可有效防止传统菱形开孔H型钢阻尼器的面外屈曲问题。因此可起到稳定耗散地震能量的作用，从而减小结构地震反应，限制结构损伤。
The utility model relates to an H-shaped steel damper with rhombus openings for preventing out-of-plane buckling, which relates to the technical field of disaster prevention and shock absorption of engineering structures. It is composed of diamond-shaped H-shaped steel, outer steel casing, inner steel plate, steel piston, screw, high-strength bolts and nuts. The upper connecting plate and the lower connecting plate of the diamond-shaped H-shaped steel are respectively connected with the outer steel sleeve and the inner steel plate by high-strength bolts, the inner steel plate is welded with the steel piston, and the outer steel sleeve and steel piston are respectively connected with the screw. The damper is connected to the structure by a screw, and it is arranged at a place where the structure deforms greatly. When an earthquake occurs, the two screws produce relative axial displacement in the axial direction, so that the web of the diamond-shaped H-shaped steel is only generated in the plane. Bending and shearing deformation can effectively prevent the out-of-plane buckling problem of the traditional diamond-shaped H-shaped steel damper. Therefore, it can play a role in stably dissipating seismic energy, thereby reducing the structural seismic response and limiting structural damage.
Description
技术领域technical field
本发明涉及工程结构防灾减震技术领域，尤其是涉及一种防面外屈曲的菱形开孔H型钢阻尼器。The invention relates to the technical field of disaster prevention and shock absorption of engineering structures, in particular to an H-shaped steel damper with diamond-shaped openings to prevent out-of-plane buckling.
背景技术Background technique
我国地处环太平洋地震带和欧亚地震带之间，国土的大部分地区为地震区，特别是我国的西部地区多为强震区，地震活动频繁。为最大限度地减小地震灾害造成的损失，必须对工程结构物进行抗震设计与加固。目前常用的延性抗震设计是利用结构特定位置作为塑性铰，通过其弹塑性变形来耗散地震能量，以满足结构抗震设计要求。结构物的减震控制技术是在结构中增加某一特定耗能装置，有效控制结构物在地震中的反应，达到抗震设计的目的。在地震作用下结构物主要依靠该特定耗能装置来吸收和耗散传入结构中的地震能量，该技术作为一种安全、经济的工程结构减震控制措施，广泛应用于国内外建筑与桥梁等工程结构抗震设计和加固修复中。my country is located between the circum-Pacific seismic belt and the Eurasian seismic belt. Most of the country is an earthquake zone, especially the western part of my country is mostly a strong earthquake zone with frequent seismic activities. In order to minimize the losses caused by earthquake disasters, it is necessary to carry out seismic design and reinforcement of engineering structures. At present, the commonly used ductile anti-seismic design is to use the specific position of the structure as a plastic hinge, and dissipate the seismic energy through its elastic-plastic deformation, so as to meet the requirements of the anti-seismic design of the structure. The seismic control technology of structures is to add a specific energy-consuming device to the structure to effectively control the response of structures in earthquakes and achieve the purpose of seismic design. Under the earthquake, the structure mainly relies on the specific energy-dissipating device to absorb and dissipate the seismic energy introduced into the structure. As a safe and economical seismic control measure for engineering structures, this technology is widely used in buildings and bridges at home and abroad. Seismic design and reinforcement repair of engineering structures.
钢材作为一种广泛使用的耗能元件，具有较好耗能能力，但如其发生平面外屈曲将会使其耗能能力大打折扣，因此传统的钢阻尼器的面外屈曲问题严重影响其在工程中的应用。As a widely used energy-dissipating element, steel has good energy-dissipating capacity, but its energy-dissipating capacity will be greatly reduced if out-of-plane buckling occurs. Therefore, the out-of-plane buckling problem of traditional steel dampers seriously affects its application in engineering. in the application.
发明内容Contents of the invention
为了克服上述缺陷，本发明提供了一种防面外屈曲的菱形开孔H型钢阻尼器，将菱形开孔H型钢与钢套筒和钢活塞连接，并通过螺杆与结构物连接，使结构物发生变形时，钢套筒与钢活塞仅在轴向发生相对位移。因此，内置的菱形开孔H型钢避免了平面外的变形而仅在平面内发生变形，实现了双向变形耗能目的并大大提高耗能效率，且震后易于更换。In order to overcome the above-mentioned defects, the present invention provides a diamond-shaped perforated H-shaped steel damper to prevent out-of-plane buckling, which connects the diamond-shaped perforated H-shaped steel with a steel sleeve and a steel piston, and connects the structure with a screw to make the structure When deformation occurs, the relative displacement of the steel sleeve and the steel piston only occurs in the axial direction. Therefore, the built-in H-shaped steel with diamond-shaped openings avoids out-of-plane deformation and only deforms in-plane, which realizes the purpose of bidirectional deformation and energy consumption, greatly improves energy consumption efficiency, and is easy to replace after the earthquake.
为实现上述目的，本发明提供了一种防面外屈曲的菱形开孔H型钢阻尼器，主要由菱形开孔H型钢(1)、外钢套管(2)、内置连接钢板(3)、钢活塞(4)、螺杆、高强螺栓以及螺帽组成；菱形开孔H型钢(1)由菱形开孔耗能钢板(10)、上连接板(8)和下连接板(9)构成，菱形开孔耗能钢板(10)相对的两个侧边上分别对应垂直固定上连接板(8)和下连接板(9)；In order to achieve the above object, the present invention provides a diamond-shaped perforated H-shaped steel damper for preventing out-of-plane buckling, which mainly consists of a diamond-shaped perforated H-shaped steel (1), an outer steel sleeve (2), a built-in connecting steel plate (3), Composed of steel piston (4), screw, high-strength bolts and nuts; diamond-shaped hole H-shaped steel (1) is composed of diamond-shaped hole energy-dissipating steel plate (10), upper connecting plate (8) and lower connecting plate (9), diamond-shaped The upper connecting plate (8) and the lower connecting plate (9) are respectively vertically fixed on the opposite sides of the perforated energy-dissipating steel plate (10);
所述的一种防面外屈曲的菱形开孔H型钢阻尼器的外钢套管(2)为一端封死的矩形钢管，且在封死端预留安装第一螺杆的螺纹孔，第一螺杆通过螺纹孔由螺帽固定在外钢套管(2)端面；另一端固定有第二螺杆，第二螺杆的一端深入到外钢套管(2)内部，另一端在外钢套管(2)外部，第二螺杆与外钢套管(2)同轴；外钢套管(2)的矩形钢管相对的两个侧面分别为a和b，菱形开孔H型钢(1)位于外钢套管(2)内部，上连接板(8)与外钢套管(2)的a侧面由高强螺栓以及螺帽平行固定在一起；下连接板(9)与内置连接钢板(3)由高强螺栓以及螺帽平行固定在一起；在外钢套管(2)内第二螺杆与钢活塞(4)固定连接，沿外钢套管(2)的轴向上连接钢板(3)长于下连接板(9)且与钢活塞(4)的端面固定连接；The outer steel casing (2) of the diamond-shaped perforated H-shaped steel damper for preventing out-of-plane buckling is a rectangular steel pipe with one end sealed, and a threaded hole for installing the first screw rod is reserved at the sealed end. The screw rod is fixed on the end face of the outer steel casing (2) by a nut through the threaded hole; the other end is fixed with a second screw rod, one end of the second screw rod goes deep into the inside of the outer steel casing (2), and the other end is in the outer steel casing (2) Externally, the second screw rod is coaxial with the outer steel casing (2); the two opposite sides of the rectangular steel pipe of the outer steel casing (2) are respectively a and b, and the diamond-shaped opening H-shaped steel (1) is located in the outer steel casing (2) Inside, the upper connecting plate (8) and the side a of the outer steel sleeve (2) are fixed together by high-strength bolts and nuts in parallel; the lower connecting plate (9) and the built-in connecting steel plate (3) are fixed together by high-strength bolts and The nuts are fixed together in parallel; the second screw rod is fixedly connected with the steel piston (4) in the outer steel casing (2), and the connecting steel plate (3) along the axial direction of the outer steel casing (2) is longer than the lower connecting plate (9 ) and is fixedly connected with the end face of the steel piston (4);
连接钢板(3)与外钢套管(2)的b侧面平行，两者之间留有距离，该距离由结构物的变形确定。The connecting steel plate (3) is parallel to side b of the outer steel casing (2), and there is a distance between them, which is determined by the deformation of the structure.
钢活塞(4)预留安装第二螺杆的螺纹孔，且该螺纹孔的中心线与外钢套管(2)的中心线在同一条直线上，钢活塞(4)位于b侧面上由b侧面起到一定的支撑作用；外钢套管(2)和钢活塞(4)分别与第二螺杆连接，并由螺帽(7)拧紧。The steel piston (4) reserves a threaded hole for installing the second screw rod, and the centerline of the threaded hole is on the same straight line as the centerline of the outer steel casing (2), and the steel piston (4) is located on the b side by b The side plays a certain supporting role; the outer steel casing (2) and the steel piston (4) are respectively connected with the second screw rod and tightened by the nut (7).
所述的一种防面外屈曲的菱形开孔H型钢阻尼器的钢活塞(4)放置在外钢套管(2)内的底板(即b侧面)上面，钢活塞(4)与内置连接钢板(3)焊接连接。The steel piston (4) of the anti-out-of-plane buckling diamond-shaped H-shaped steel damper is placed on the bottom plate (i.e. side b) in the outer steel sleeve (2), and the steel piston (4) is connected to the built-in connecting steel plate (3) Solder connection.
外钢套管(2)封闭端的端面厚度大于另一端的端面，第一螺杆没有贯穿外钢套管(2)封闭端。The thickness of the end surface of the closed end of the outer steel sleeve (2) is greater than that of the other end, and the first screw does not penetrate through the closed end of the outer steel sleeve (2).
所述的一种防面外屈曲的菱形开孔H型钢阻尼器的菱形开孔H型钢(1)由H型钢为原材料制作而成，避免了菱形开孔耗能钢板(10)(菱形开孔耗能钢板的板面上开有多个沿板面的菱形通孔)与上连接板(8)和下连接板(9)焊接在一起引起的残余应力和残余位移对阻尼器性能的影响。The diamond-shaped hole H-shaped steel damper (1) of the anti-out-of-plane buckling diamond-shaped hole H-shaped steel damper is made of H-shaped steel as raw material, avoiding the diamond-shaped hole energy-consuming steel plate (10) (diamond-shaped hole The energy-dissipating steel plate has a plurality of diamond-shaped through holes along the plate surface) and the upper connecting plate (8) and the lower connecting plate (9) are welded together, and the influence of residual stress and residual displacement on the performance of the damper is caused.
本发明的有益效果是：The beneficial effects of the present invention are:
本发明的一种防面外屈曲的菱形开孔H型钢阻尼器，在地震作用下减震效果显著，主要体现在以下几点：The anti-out-of-plane buckling H-shaped steel damper with rhombus openings of the present invention has a remarkable shock-absorbing effect under the action of an earthquake, which is mainly reflected in the following points:
1.由于菱形开孔H型钢与钢套筒和钢活塞连接，并通过螺杆与结构物连接，使结构物发生变形时，钢套筒与钢活塞仅在轴向发生相对位移，使内置的菱形开孔H型钢避免了平面外的变形而仅在平面内发生变形，实现了双向变形耗能目的并大大提高耗能效率。1. Since the diamond-shaped hole H-shaped steel is connected with the steel sleeve and the steel piston, and is connected with the structure through the screw rod, when the structure is deformed, the steel sleeve and the steel piston only have a relative displacement in the axial direction, so that the built-in rhombus The open-hole H-shaped steel avoids deformation outside the plane and only deforms in the plane, realizing the purpose of bidirectional deformation energy consumption and greatly improving energy consumption efficiency.
2.该阻尼器由螺杆与结构连接，并布置在结构变形较大处，当地震发生时，两个螺杆在轴向产生相对的轴向位移，使菱形开孔H型钢的腹板仅在平面内产生弯曲和剪切变形，可有效防止传统菱形开孔H型钢阻尼器的面外屈曲问题。因此可起到稳定耗散地震能量的作用，从而减小结构地震反应，限制结构损伤。本发明具有力学性能稳定、减震机理明确、耗能效率高、耐久性好、生产工艺简便且震后更换方便等优点，在工程结构防灾减震技术领域的减震设计与加固修复技术中具有广阔的应用前景。本发明容易实现，适用范围广，可减小结构在地震中的反应，因此能减少结构的设计截面和配筋；震后破坏集中在菱形开孔耗能钢板，易于更换、可减少结构的震后修复成本。因此，本发明具有良好社会经济效益，值得推广应用。2. The damper is connected to the structure by a screw, and it is arranged at a place where the structure deforms greatly. When an earthquake occurs, the two screws produce relative axial displacement in the axial direction, so that the web of the diamond-shaped H-shaped steel is only in the plane Bending and shearing deformation can be generated inside, which can effectively prevent the out-of-plane buckling problem of the traditional diamond-shaped H-shaped steel damper. Therefore, it can play a role in stably dissipating seismic energy, thereby reducing the structural seismic response and limiting structural damage. The invention has the advantages of stable mechanical properties, clear shock absorption mechanism, high energy consumption efficiency, good durability, simple production process and convenient replacement after earthquake, etc. have a broad vision of application. The invention is easy to realize, has a wide application range, can reduce the response of the structure in the earthquake, and can therefore reduce the design section and reinforcement of the structure; after the earthquake, the damage is concentrated on the diamond-shaped opening energy-consuming steel plate, which is easy to replace and can reduce the earthquake of the structure post-repair costs. Therefore, the present invention has good social and economic benefits and is worthy of popularization and application.
附图说明Description of drawings
图1为一种防面外屈曲的菱形开孔H型钢阻尼器的正视示意图；Fig. 1 is a schematic front view of a diamond-shaped perforated H-shaped steel damper for preventing out-of-plane buckling;
图2为一种防面外屈曲的菱形开孔H型钢阻尼器的侧视示意图；Fig. 2 is a schematic side view of a diamond-shaped perforated H-shaped steel damper for preventing out-of-plane buckling;
图3为一种防面外屈曲的菱形开孔H型钢阻尼器的A-A截面示意图。Fig. 3 is an A-A cross-sectional schematic diagram of an H-shaped steel damper with diamond openings to prevent out-of-plane buckling.
图4为一种防面外屈曲的菱形开孔H型钢阻尼器的B-B截面示意图。Fig. 4 is a B-B cross-sectional schematic diagram of a diamond-shaped perforated H-shaped steel damper for preventing out-of-plane buckling.
图5为一种防面外屈曲的菱形开孔H型钢阻尼器的菱形开孔耗能钢板的正视示意图。Fig. 5 is a schematic front view of an energy-dissipating steel plate with diamond-shaped openings of an H-shaped steel damper with diamond-shaped openings for preventing out-of-plane buckling.
附图标记说明：Explanation of reference signs:
1—菱形开孔H型钢；2—外钢套管；3—内置连接钢板；4—钢活塞；5—螺杆；6—高强螺栓；7—螺帽；8—菱形开孔H型钢的上连接板；9—菱形开孔H型钢的下连接板；10—菱形开孔耗能钢板，a-外钢套管a侧面，b-外钢套管b侧面。1—H-shaped steel with rhombus opening; 2—Outer steel casing; 3—Internal connecting steel plate; 4—Steel piston; 5—Screw; 6—High-strength bolt; 7—Nut; Plate; 9—the lower connecting plate of H-shaped steel with rhombus opening; 10—energy-dissipating steel plate with rhombus opening, a—a side of the outer steel casing, b—b side of the outer steel casing.
具体实施方式detailed description
下面结合实施例对本发明作进一步说明，但本发明并不限于以下实施。The present invention will be further described below in conjunction with embodiment, but the present invention is not limited to following implementation.
实施例1Example 1
本发明是在菱形开孔H型钢的基础上，与钢套筒和钢活塞通过高强螺栓连接，并通过螺杆与结构物连接，使结构物发生变形时，钢套筒与钢活塞仅在轴向发生相对位移，使内置的菱形开孔H型钢避免了平面外的变形而仅在平面内发生变形，实现了菱形开孔H型钢在双向变形结构中的耗能目的。该结构主要用于抗震性能要求较高的桥梁工程和建筑工程减隔震技术中。The present invention is based on the H-shaped steel with rhombus openings, and is connected with the steel sleeve and the steel piston by high-strength bolts, and connected with the structure through the screw rod, so that when the structure is deformed, the steel sleeve and the steel piston are only in the axial direction. The relative displacement occurs, so that the built-in H-shaped steel with diamond-shaped openings avoids out-of-plane deformation and only deforms in the plane, realizing the purpose of energy consumption of the H-shaped steel with diamond-shaped openings in the bidirectional deformation structure. The structure is mainly used in bridge engineering and construction engineering seismic isolation technology with high seismic performance requirements.
图1、图2、图3和图4是一种防面外屈曲的菱形开孔H型钢阻尼器的具体实施实例，构造方式主要由菱形开孔H型钢1、外钢套管2、内置连接钢板3和钢活塞4组成。图5为菱形开孔H型钢的构造，由菱形开孔耗能钢板10与上连接板8和下连接板9焊接而成。Fig. 1, Fig. 2, Fig. 3 and Fig. 4 are specific implementation examples of a diamond-shaped opening H-shaped steel damper to prevent out-of-plane buckling. Steel plate 3 and steel piston 4 are formed. Fig. 5 shows the structure of H-shaped steel with rhombus openings, which is formed by welding energy-dissipating steel plates 10 with rhombus openings, upper connecting plates 8 and lower connecting plates 9 .
本发明在应用于桥梁结构时，将菱形开孔H型钢1置于外钢套管2中，且通过菱形开孔H型钢的上连接板8和下连接板9分别由高强螺栓6与外钢套管2和内置连接钢板3连接，并由螺帽7拧紧。外钢套管2为左端封死的矩形钢管，且在封死端预留安装螺杆7的螺纹孔。钢活塞4预留安装螺杆7的螺纹孔，且该螺纹孔的中心线与外钢套管2的中心线在同一条直线上。外钢套管2和钢活塞4分别与螺杆5连接，并由螺帽7拧紧。钢活塞4放置在外钢套管2内的底板顶面，钢活塞4与内置连接钢板3焊接连接。内置连接钢板3与外钢套管2在水平向留有距离，该距离由结构物的变形确定。When the present invention is applied to a bridge structure, the diamond-shaped perforated H-shaped steel 1 is placed in the outer steel casing 2, and the upper connecting plate 8 and the lower connecting plate 9 of the diamond-shaped perforated H-shaped steel are connected by high-strength bolts 6 and the outer steel casing respectively. The sleeve pipe 2 is connected with the built-in connecting steel plate 3 and tightened by a nut 7 . The outer steel casing 2 is a rectangular steel pipe sealed at the left end, and a threaded hole for installing the screw rod 7 is reserved at the sealed end. The steel piston 4 reserves a threaded hole for installing the screw rod 7, and the centerline of the threaded hole is on the same straight line as the centerline of the outer steel casing 2. The outer steel casing 2 and the steel piston 4 are respectively connected with the screw rod 5 and tightened by the nut 7 . The steel piston 4 is placed on the top surface of the bottom plate in the outer steel casing 2, and the steel piston 4 is welded to the built-in connecting steel plate 3. There is a horizontal distance between the built-in connecting steel plate 3 and the outer steel casing 2, which is determined by the deformation of the structure.
当地震发生时，结构发生变形并在轴向拉压螺杆，而内置的菱形开孔H型钢的耗能钢板仅发生平面变形，因此可避免耗能钢板的面外屈曲，而起到稳定的耗能作用。该阻尼器易加工和成型控制，方便运输和安装，耐久性能强，且能双向耗能，减震效果显著，又安全可靠，震后易更换。可以显著提高地震区桥梁和建筑等工程结构的抗震性能，值得广泛推广应用。When an earthquake occurs, the structure deforms and the screw rod is pulled and compressed in the axial direction, while the energy-dissipating steel plate of the built-in diamond-shaped H-shaped steel only undergoes plane deformation, so the out-of-plane buckling of the energy-dissipating steel plate can be avoided, and a stable energy-consuming can work. The damper is easy to process and shape to control, convenient to transport and install, has strong durability, can consume energy in two directions, has remarkable shock absorption effect, is safe and reliable, and is easy to replace after an earthquake. It can significantly improve the seismic performance of engineering structures such as bridges and buildings in earthquake areas, and is worthy of wide application.
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