CN107035018B - Even Liang Ruangang attenuator and work progress - Google Patents
Even Liang Ruangang attenuator and work progress Download PDFInfo
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 106
- 239000010959 steel Substances 0.000 claims abstract description 106
- 229910001209 Low-carbon steel Inorganic materials 0.000 claims abstract description 103
- 230000000452 restraining effect Effects 0.000 claims abstract description 46
- 238000010276 construction Methods 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 abstract description 6
- 230000021715 photosynthesis, light harvesting Effects 0.000 abstract description 5
- 230000008878 coupling Effects 0.000 description 8
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- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000003351 stiffener Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
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- 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
- E04H9/022—Bearing, supporting or connecting constructions specially adapted for such buildings and comprising laminated structures of alternating elastomeric and rigid layers
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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- Y02A30/00—Adapting or protecting infrastructure or their operation
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Abstract
本发明属于土木工程技术领域，涉及一种连梁软钢阻尼器及施工过程，包括耗能软钢板、约束钢板、刚性端板、左角钢、右角钢、高强螺栓、约束螺栓和限位螺栓。每组耗能软钢板夹于两片约束钢板之间，限位螺栓和约束螺栓分别穿过限位螺栓孔和约束螺栓孔，刚性端板夹于两组耗能软钢板之间，所有耗能软钢板左端夹于两块左角钢之间，右端夹于两块右角钢之间。本发明的耗能软钢板开设斜向45°长条孔，更好的迎合耗能软钢板剪切变形，在地震作用下出现多点屈服，增强其耗能能力，并通过约束钢板和约束螺栓控制耗能软钢板平面外屈曲，延长阻尼器的使用寿命。
The invention belongs to the technical field of civil engineering and relates to a connecting beam mild steel damper and its construction process. Each set of energy-consuming mild steel plates is sandwiched between two restraining steel plates. The limit bolts and restraining bolts pass through the limiting bolt holes and restraining bolt holes respectively. The rigid end plates are sandwiched between two sets of energy-consuming mild steel plates. All energy-consuming The left end of the mild steel plate is sandwiched between two left angle steels, and the right end is sandwiched between two right angle steels. The energy-consuming mild steel plate of the present invention is provided with oblique 45° elongated holes, which can better cater to the shear deformation of the energy-consuming mild steel plate. It will yield at multiple points under the action of earthquakes, enhance its energy dissipation capacity, and through the restraining steel plate and restraining bolts Control the out-of-plane buckling of energy-consuming mild steel plates and extend the service life of the damper.
Description
技术领域Technical field
本发明属于土木工程技术领域，涉及一种消能减震装置及施工过程，尤其是通过约束钢板和约束螺栓有效控制开孔软钢板平面外屈曲的阻尼器。The invention belongs to the technical field of civil engineering and relates to an energy-dissipating shock-absorbing device and a construction process, in particular to a damper that effectively controls out-of-plane buckling of a perforated mild steel plate through constraining steel plates and constraining bolts.
背景技术Background technique
消能减震技术是在结构的抗侧力构件中并联阻尼器，由阻尼器消耗大部分的地震能量，从而保证主体结构的安全，是一种积极有效的抗震策略。近年来金属型阻尼器已在结构设计中得到广泛的认可。软钢阻尼器属于金属阻尼器的一种，具有良好的滞回性能和耗散地震能量的性能。软钢阻尼器的耗能性能受外界环境影响小，长期性质稳定，更换方便，价格便宜。Energy dissipation and shock absorption technology is to connect dampers in parallel in the lateral force-resistant members of the structure. The dampers consume most of the seismic energy, thus ensuring the safety of the main structure. It is an active and effective anti-seismic strategy. In recent years, metal dampers have been widely recognized in structural design. Mild steel dampers are a type of metal dampers that have good hysteretic properties and the ability to dissipate seismic energy. The energy consumption performance of mild steel dampers is less affected by the external environment, has stable long-term properties, is easy to replace, and is cheap.
目前国内外研究者提出了较多的设计方法，包括拉压型、弯曲型和剪切型。其中剪切型软钢阻尼器主要通过软钢的面内剪切屈服变形实现耗能。如：公开号为CN202969624U的专利中公开了一种开缝剪切型建筑结构软钢阻尼器，通过开缝提高变形能力，迎合各种耗能要求，但当达到一定的变形时会发生局部平面外屈曲，导致阻尼器失效；公开号为CN101413296A的专利中公开了软钢剪切滞回阻尼器，是通过布置加劲肋以有效控制腹板屈曲，但加劲肋的焊接会带来较高的残余应力，降低软钢剪切滞回阻尼器的低周疲劳性能。At present, researchers at home and abroad have proposed many design methods, including tension-compression type, bending type and shear type. Among them, the shear-type mild steel damper mainly achieves energy dissipation through the in-plane shear yield deformation of the mild steel. For example: the patent with the publication number CN202969624U discloses a slit shear type mild steel damper for building structures. The deformation capacity is improved through slits to meet various energy consumption requirements. However, when a certain deformation is reached, local planes will occur. External buckling leads to damper failure; the patent with publication number CN101413296A discloses a mild steel shear hysteretic damper, which effectively controls web buckling by arranging stiffeners, but the welding of stiffeners will bring high residual stress, reducing the low-cycle fatigue performance of mild steel shear hysteretic dampers.
发明内容Contents of the invention
针对现有技术的不足，本发明提供一种连梁软钢阻尼器。该阻尼器耗能软钢板开设斜向45°长条孔，更好的迎合耗能软钢板剪切变形，在地震作用下出现多点屈服，增强其耗能能力，而且约束钢板和约束螺栓可以有效控制耗能软钢板平面外屈曲，延长阻尼器的使用寿命。In view of the shortcomings of the existing technology, the present invention provides a connecting beam mild steel damper. The energy-dissipating mild steel plate of the damper is opened with oblique 45° long holes to better cater to the shear deformation of the energy-dissipating mild steel plate. It will yield at multiple points under the action of earthquakes, enhancing its energy dissipation capacity. Moreover, the restraining steel plate and restraining bolts can Effectively control out-of-plane buckling of energy-consuming mild steel plates and extend the service life of the damper.
本发明解决其技术问题所采用的技术方案是：The technical solutions adopted by the present invention to solve the technical problems are:
一种连梁软钢阻尼器，包括耗能软钢板、约束钢板、刚性端板、左角钢、右角钢、高强螺栓、约束螺栓和限位螺栓；每组耗能软钢板夹于两片约束钢板之间，限位螺栓和约束螺栓分别穿过限位螺栓孔和约束螺栓孔；刚性端板夹于两组耗能软钢板之间，所有耗能软钢板左端夹于两块左角钢之间，右端夹于两块右角钢之间，高强螺栓分别将左角钢、耗能软钢板和刚性端板连接，将右角钢、耗能软钢板和刚性端板连接；左角钢、右角钢和刚性端板分别与约束钢板之间设有缝隙。A mild steel damper for connecting beams, including energy-consuming mild steel plates, restraint steel plates, rigid end plates, left angle steel, right angle steel, high-strength bolts, restraint bolts and limit bolts; each group of energy-dissipation mild steel plates is sandwiched between two restraining steel plates The limit bolts and constraint bolts pass through the limit bolt holes and constraint bolt holes respectively; the rigid end plates are sandwiched between two sets of energy-consuming mild steel plates, and the left ends of all energy-consuming mild steel plates are sandwiched between two left angle steels. The right end is sandwiched between two right angle steels. High-strength bolts connect the left angle steel, energy-consuming mild steel plate and rigid end plate respectively, and connect the right angle steel, energy-consuming mild steel plate and rigid end plate; the left angle steel, right angle steel and rigid end plate There are gaps between them and the restraining steel plates.
所述耗能软钢板中部开设斜向45°长条孔，两端开设耗能软钢板螺栓孔，两片或三片构成一组。The energy-consuming mild steel plate has a 45° oblique long hole in the middle, and energy-consuming mild steel plate bolt holes are opened at both ends. Two or three pieces form a set.
所述约束钢板上下两端分别开设约束螺栓孔和限位螺栓孔。限位螺栓孔之间的高度等于耗能软钢板的高度；约束螺栓孔之间的高度大于耗能软钢板的高度，约束螺栓和耗能软钢板之间设有剪切变形空间。约束钢板通过约束螺栓预紧，控制耗能软钢板的平面外屈曲。所述约束钢板和刚性端板的厚度相同。所述刚性端板、所述左角钢和所述右角钢分别开设螺栓孔。Constraining bolt holes and limiting bolt holes are respectively provided at the upper and lower ends of the restraining steel plate. The height between the limit bolt holes is equal to the height of the energy-consuming mild steel plate; the height between the restraining bolt holes is greater than the height of the energy-consuming mild steel plate, and a shear deformation space is provided between the restraining bolts and the energy-consuming mild steel plate. The restraint steel plate is pre-tightened by restraint bolts to control the out-of-plane buckling of the energy-consuming mild steel plate. The thickness of the restraining steel plate and the rigid end plate are the same. Bolt holes are provided in the rigid end plate, the left angle steel and the right angle steel respectively.
该连梁软钢阻尼器的施工过程如下：The construction process of the coupling beam mild steel damper is as follows:
①每两片耗能软钢板构成一组，两组耗能软钢板和三片约束钢板间隔平行布置，两个限位螺栓分别穿过三片约束钢板的限位螺栓孔；① Every two pieces of energy-dissipating mild steel plates form a group. The two groups of energy-dissipating mild steel plates and the three restraining steel plates are arranged in parallel at intervals. The two limit bolts pass through the limit bolt holes of the three restraining steel plates respectively;
②将两片刚性端板分别夹于两组耗能软钢板两端，将左角钢夹在耗能软钢板左端的外侧，三个高强螺栓分别依次穿过左角钢螺栓孔、耗能软钢板螺栓孔、刚性端板螺栓孔、耗能软钢板螺栓孔和左角钢螺栓孔，将右角钢夹在耗能软钢板右端的外侧，另外三个高强螺栓分别依次穿过右角钢螺栓孔、耗能软钢板螺栓孔、刚性端板螺栓孔、耗能软钢板螺栓孔和右角钢螺栓孔；② Clamp the two rigid end plates to the two ends of the two sets of energy-consuming mild steel plates, clamp the left angle steel to the outside of the left end of the energy-consuming mild steel plate, and pass the three high-strength bolts through the left angle steel bolt holes and the energy-consuming mild steel plate bolts in sequence. hole, rigid end plate bolt hole, energy-consuming mild steel plate bolt hole and left angle steel bolt hole. Clamp the right angle steel to the outside of the right end of the energy-consuming mild steel plate. The other three high-strength bolts pass through the right angle steel bolt hole, energy-consuming soft steel plate respectively. Steel plate bolt holes, rigid end plate bolt holes, energy-consuming mild steel plate bolt holes and right angle steel bolt holes;
③将约束螺栓分别穿过三片约束钢板的约束螺栓孔，施加一定的预紧力，耗能软钢板在地震作用下可以自由发生剪切变形；③ Pass the restraining bolts through the restraining bolt holes of the three restraining steel plates respectively, and apply a certain pretightening force. The energy-consuming soft steel plates can freely undergo shear deformation under the action of earthquakes;
④在连梁中部断开处安装连梁软钢阻尼器，左角钢通过高强螺栓和连梁左半部分的预埋件连接，右角钢通过高强螺栓和连梁右半部分的预埋件连接。④Install the mild steel damper of the coupling beam at the middle disconnection of the coupling beam. The left angle steel is connected to the embedded parts in the left half of the coupling beam through high-strength bolts, and the right angle steel is connected to the embedded parts in the right half of the coupling beam through high-strength bolts.
本发明的有益效果在于：①一种连梁软钢阻尼器的耗能软钢板开设斜向45°长条孔，可以根据地震的参数组装多组耗能软钢钢板，组装灵活，耗能能力强；②一种连梁软钢阻尼器的约束钢板和约束螺栓可以有效控制耗能软钢板平面外屈曲，延长阻尼器的使用寿命；④一种连梁软钢阻尼器和工程结构采用螺栓连接，施工方便，易于检修和更换。The beneficial effects of the present invention are: ① The energy-consuming mild steel plate of a connecting beam mild steel damper is provided with oblique 45° long holes, and multiple groups of energy-consuming mild steel plates can be assembled according to earthquake parameters. The assembly is flexible and the energy-consuming capacity is improved. Strong; ② The restraining steel plate and restraining bolts of a coupling beam mild steel damper can effectively control the out-of-plane buckling of the energy-consuming mild steel plate and extend the service life of the damper; ④ A coupling beam mild steel damper and engineering structures are connected by bolts , convenient construction, easy maintenance and replacement.
附图说明Description of the drawings
图1是本发明所述的连梁软钢阻尼器示意图。Figure 1 is a schematic diagram of the connecting beam mild steel damper according to the present invention.
图2是本发明所述的连梁软钢阻尼器正视图。Figure 2 is a front view of the connecting beam mild steel damper according to the present invention.
图3是本发明所述的连梁软钢阻尼器耗能软钢板正视图。Figure 3 is a front view of the energy-dissipating mild steel plate of the connecting beam mild steel damper according to the present invention.
图4是本发明所述的连梁软钢阻尼器约束钢板正视图。Figure 4 is a front view of the connecting beam mild steel damper restraining steel plate according to the present invention.
图5是本发明所述的连梁软钢阻尼器刚性端板正视图。Figure 5 is a front view of the rigid end plate of the connecting beam mild steel damper according to the present invention.
图6是本发明所述的连梁软钢阻尼器左固定角钢示意图。Figure 6 is a schematic diagram of the left fixed angle steel of the connecting beam mild steel damper according to the present invention.
图7是本发明所述的连梁软钢阻尼器左固定角钢正视图。Figure 7 is a front view of the left fixed angle steel of the connecting beam mild steel damper according to the present invention.
图8是本发明所述的连梁软钢阻尼器右固定角钢示意图。Figure 8 is a schematic diagram of the right fixed angle steel of the connecting beam mild steel damper according to the present invention.
图9是本发明所述的连梁软钢阻尼器右固定角钢正视图。Figure 9 is a front view of the right fixed angle steel of the connecting beam mild steel damper according to the present invention.
图中，1-耗能软钢板，2-约束钢板，3-刚性端板，4-左角钢，5-右角钢，6-高强螺栓，7-约束螺栓，8-限位螺栓，301-斜向45°长条孔，302-耗能软钢板螺栓孔，401-约束螺栓孔，402-限位螺栓孔，501-刚性端板螺栓孔，601-左角钢螺栓孔，602-左角钢固定螺栓孔，801-右角钢螺栓孔，802-右角钢固定螺栓孔。In the figure, 1-energy-consuming mild steel plate, 2-constraint steel plate, 3-rigid end plate, 4-left angle steel, 5-right angle steel, 6-high-strength bolt, 7-constraint bolt, 8-limit bolt, 301-oblique 45° long hole, 302-energy-consuming mild steel plate bolt hole, 401-restraining bolt hole, 402-limit bolt hole, 501-rigid end plate bolt hole, 601-left angle steel bolt hole, 602-left angle steel fixing bolt Hole, 801-right angle steel bolt hole, 802-right angle steel fixing bolt hole.
具体实施方式Detailed ways
下面结合附图对本发明作进一步说明。The present invention will be further described below in conjunction with the accompanying drawings.
根据图1、图2和图3所示，所述耗能软钢板1中部开设斜向45°长条孔301，两端开设耗能软钢板螺栓孔302，两片或三片构成一组，每组耗能软钢板1夹于两片约束钢板2之间，限位螺栓8和约束螺栓7分别穿过限位螺栓孔402和约束螺栓孔401；刚性端板3夹于两组耗能软钢板1之间，所有耗能软钢板1左端夹于两块左角钢4之间，右端夹于两块右角钢5之间，高强螺栓6分别将左角钢4、耗能软钢板1和刚性端板3连接，将右角钢5、耗能软钢板1和刚性端板3连接；左角钢4、右角钢5和刚性端板3分别与约束钢板2之间设有缝隙。As shown in Figures 1, 2 and 3, the energy-consuming mild steel plate 1 is provided with a 45° oblique long hole 301 in the middle, and energy-consuming mild steel plate bolt holes 302 are provided at both ends. Two or three pieces form a group. Each set of energy-consuming soft steel plates 1 is sandwiched between two constraining steel plates 2. The limiting bolts 8 and constraining bolts 7 pass through the limiting bolt holes 402 and constraining bolt holes 401 respectively; the rigid end plates 3 are sandwiched between two sets of energy-consuming soft steel plates. Between steel plates 1, the left end of all energy-consuming mild steel plates 1 is sandwiched between two left angle steels 4, and the right end is sandwiched between two right angle steels 5. High-strength bolts 6 respectively secure the left angle steel 4, the energy-consuming mild steel plate 1 and the rigid end. Plate 3 is connected to connect the right angle steel 5, the energy-consuming soft steel plate 1 and the rigid end plate 3; there are gaps between the left angle steel 4, the right angle steel 5 and the rigid end plate 3 and the restraining steel plate 2 respectively.
根据图1和4所示，所述约束钢板2上下两端分别开设约束螺栓孔401和限位螺栓孔402。限位螺栓孔402之间的高度等于耗能软钢板1的高度，限位螺栓8穿过限位螺栓孔402限制约束钢板1上下移动；约束螺栓孔401之间的高度大于耗能软钢板1的高度，为耗能软钢板1的剪切变形预留空间，约束钢板2通过约束螺栓7预紧，控制耗能软钢板1的平面外屈曲。As shown in Figures 1 and 4, constraining bolt holes 401 and limiting bolt holes 402 are respectively provided at the upper and lower ends of the restraining steel plate 2. The height between the limit bolt holes 402 is equal to the height of the energy-consuming mild steel plate 1. The limit bolts 8 pass through the limit bolt holes 402 to limit the up and down movement of the restraining steel plate 1; the height between the restraining bolt holes 401 is greater than the energy-consuming mild steel plate 1. The height reserves space for the shear deformation of the energy-consuming mild steel plate 1. The restraining steel plate 2 is pre-tightened by the restraining bolts 7 to control the out-of-plane buckling of the energy-consuming mild steel plate 1.
根据图5、图6、图7、图8和图9所示，所述刚性端板3的厚度和约束钢板2的厚度相同。刚性端板3、左角钢4和右角钢5分别开设螺栓孔，左角钢4和右角钢5构造和尺寸完全相同。As shown in Figures 5, 6, 7, 8 and 9, the thickness of the rigid end plate 3 is the same as the thickness of the restraining steel plate 2. The rigid end plate 3, the left angle steel 4 and the right angle steel 5 have bolt holes respectively, and the left angle steel 4 and the right angle steel 5 have exactly the same structure and size.
该连梁软钢阻尼器的施工过程如下：The construction process of the coupling beam mild steel damper is as follows:
①每两片耗能软钢板1构成一组，两组耗能软钢板1和三片约束钢板2间隔平行布置，两个限位螺栓8分别穿过三片约束钢板2的限位螺栓孔402；① Every two pieces of energy-consuming mild steel plates 1 form a group. The two groups of energy-consuming mild steel plates 1 and the three restraining steel plates 2 are arranged in parallel at intervals. The two limit bolts 8 pass through the limit bolt holes 402 of the three restraining steel plates 2 respectively. ;
②将两片刚性端板3分别夹于两组耗能软钢板1两端，将左角钢4夹在耗能软钢板1左端的外侧，三个高强螺栓6分别依次穿过左角钢螺栓孔601、耗能软钢板螺栓孔302、刚性端板螺栓孔501、耗能软钢板螺栓孔302和左角钢螺栓孔601，将右角钢5夹在耗能软钢板1右端的外侧，另外三个高强螺栓6分别依次穿过右角钢螺栓孔801、耗能软钢板螺栓孔302、刚性端板螺栓孔501、耗能软钢板螺栓孔302和右角钢螺栓孔801；② Clamp the two rigid end plates 3 to both ends of the two sets of energy-consuming mild steel plates 1, clamp the left angle steel 4 to the outside of the left end of the energy-consuming mild steel plate 1, and pass the three high-strength bolts 6 through the left angle steel bolt holes 601 respectively. , energy-consuming mild steel plate bolt hole 302, rigid end plate bolt hole 501, energy-consuming mild steel plate bolt hole 302 and left angle steel bolt hole 601, clamp the right angle steel 5 to the outside of the right end of the energy-consuming mild steel plate 1, and use the other three high-strength bolts 6 respectively pass through the right angle steel bolt hole 801, the energy-dissipating mild steel plate bolt hole 302, the rigid end plate bolt hole 501, the energy-dissipating mild steel plate bolt hole 302 and the right angle steel bolt hole 801;
③将约束螺栓7分别穿过三片约束钢板2的约束螺栓孔401，施加一定的预紧力，耗能软钢板1在地震作用下可以自由发生剪切变形；③ Pass the restraining bolts 7 through the restraining bolt holes 401 of the three restraining steel plates 2 respectively, and apply a certain pretightening force. The energy-consuming soft steel plate 1 can freely undergo shear deformation under the action of earthquakes;
④在连梁中部断开处安装连梁软钢阻尼器，左角钢4通过高强螺栓和连梁左半部分的预埋件连接，右角钢5通过高强螺栓和连梁右半部分的预埋件连接。④Install a mild steel damper for the connecting beam at the middle disconnection of the connecting beam. The left angle steel 4 is connected to the embedded parts on the left half of the connecting beam through high-strength bolts, and the right angle steel 5 is connected to the embedded parts on the right half of the connecting beam through high-strength bolts. connect.
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| CN108166642A (en) * | 2018-01-19 | 2018-06-15 | 河北工业大学 | Gear mild steel damper and assembling constructing method |
| CN108952283B (en) * | 2018-07-24 | 2021-03-23 | 青岛理工大学 | Assembled variable stiffness transverse connection energy-consuming parts and installation method |
| CN108824920B (en) * | 2018-07-26 | 2024-04-26 | 姚攀峰 | Novel buckling restrained energy-consumption steel plate shear wall, structural system and construction method thereof |
| US11371241B2 (en) | 2019-09-27 | 2022-06-28 | Changsha University Of Science & Technology | Damper for energy dissipation |
| CN110629899B (en) * | 2019-09-27 | 2020-12-08 | 长沙理工大学 | An energy dissipation damper based on tensile and compressive yielding of perforated steel plates |
| CN111622348B (en) * | 2020-06-09 | 2020-12-25 | 江苏海洋大学 | Prestressed self-resetting concrete truss structure and assembling method |
| CN112144688B (en) * | 2020-10-30 | 2023-04-14 | 中国地震局工程力学研究所 | Double-sided shearing type square steel tube damper and manufacturing method |
| CN114753514B (en) * | 2022-04-11 | 2024-05-14 | 北京工业大学 | Displacement amplification type E-shaped steel damper, node and construction method of node |
| CN114809767B (en) * | 2022-04-29 | 2024-06-04 | 东南大学 | A displacement amplification type mild steel damper |
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