CN103174229B - Novel mixing energy-dissipated brace - Google Patents
Novel mixing energy-dissipated brace Download PDFInfo
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- CN103174229B CN103174229B CN201310076664.1A CN201310076664A CN103174229B CN 103174229 B CN103174229 B CN 103174229B CN 201310076664 A CN201310076664 A CN 201310076664A CN 103174229 B CN103174229 B CN 103174229B
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 62
- 239000010959 steel Substances 0.000 claims abstract description 62
- 239000003190 viscoelastic substance Substances 0.000 claims abstract description 42
- 239000000463 material Substances 0.000 claims description 11
- 230000021715 photosynthesis, light harvesting Effects 0.000 claims description 10
- 239000004570 mortar (masonry) Substances 0.000 claims description 8
- 238000013016 damping Methods 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims 1
- 230000006835 compression Effects 0.000 abstract description 6
- 238000007906 compression Methods 0.000 abstract description 6
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
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Abstract
本发明涉及一种新型混合消能减震支撑，包括芯板、外套筒、L形钢板、矩形钢板、粘弹性材料和螺栓孔，在低屈服钢芯板外围套上外套筒，在外套筒端部侧面焊接矩形钢板，在矩形钢板和L形钢板之间填充粘弹性材料，L形钢板与芯板焊接，通过芯板两端的螺栓孔与结构相连。本装置可使得支撑在地震作用下承受压力的时候不致屈曲；低屈服钢芯板产生反复拉压变形的同时，粘弹性材料会产生剪切变形，两者共同耗散地震能量。本发明在外套筒与芯板一旦发生相对位移时粘弹性材料即开始耗能；在相同大变形条件下，由粘弹性材料和屈曲约束支撑共同耗能，较传统屈曲约束支撑具有更大的耗能能力；粘弹性材料层层数及尺寸可根据需要灵活设计。
The invention relates to a novel hybrid energy-dissipating shock-absorbing support, which includes a core plate, an outer sleeve, an L-shaped steel plate, a rectangular steel plate, a viscoelastic material and bolt holes. Rectangular steel plates are welded on the side of the end of the barrel, and viscoelastic materials are filled between the rectangular steel plates and the L-shaped steel plates. The L-shaped steel plates are welded to the core plate and connected to the structure through the bolt holes at both ends of the core plate. The device can prevent the support from buckling when it bears pressure under the action of an earthquake; while the low-yield steel core plate produces repeated tension and compression deformation, the viscoelastic material produces shear deformation, and the two jointly dissipate the seismic energy. In the present invention, the viscoelastic material starts to consume energy once the outer sleeve and the core plate are displaced relative to each other; under the same large deformation condition, the viscoelastic material and the buckling-constrained support jointly consume energy, which has greater energy consumption than the traditional buckling-constrained support Capability; the number and size of viscoelastic material layers can be flexibly designed according to needs.
Description
技术领域 technical field
本发明涉及新型混合消能减震支撑，属于工程结构抗震与消能减震技术领域。 The invention relates to a novel hybrid energy-dissipating shock-absorbing support, which belongs to the technical field of anti-seismic and energy-dissipating shock-absorbing engineering structures.
背景技术 Background technique
传统结构在抵御地震的过程中，是通过建筑结构体系的非线性变形和损伤来消耗地震动输入的能量。这是一种依靠结构本身的抗震策略，抗震效果不够显著，而且会带来结构体系的破坏，造成很大的震后修复费用。随着结构减震技术的发展，减隔震装置正被广泛使用，其原理是通过减隔震装置来消耗或者隔离相当部分的地震能量，从而减少结构的损伤，保证结构的安全。传统的屈曲约束支撑便是其中一种，即在低屈服钢芯板外围套上外套筒，一般以斜撑的形式布置在建筑结构的层间对角位置。在地震作用下，芯板的反复拉压变形可以耗散地震能量，同时外套筒又有效防止了芯板的屈曲，保证了支撑的持续耗能和刚度的提供。 In the process of resisting earthquakes, traditional structures consume the energy input by earthquake vibrations through the nonlinear deformation and damage of the building structure system. This is an anti-seismic strategy that relies on the structure itself. The anti-seismic effect is not significant enough, and it will cause damage to the structural system, resulting in a large post-earthquake repair cost. With the development of structural shock-absorbing technology, shock-absorbing and isolating devices are being widely used. The principle is to consume or isolate a considerable part of seismic energy through shock-absorbing and isolating devices, thereby reducing structural damage and ensuring structural safety. The traditional buckling restraint support is one of them, that is, an outer sleeve is placed on the periphery of the low-yield steel core plate, and it is generally arranged in the form of diagonal braces at diagonal positions between floors of the building structure. Under the action of earthquakes, the repeated tension and compression deformation of the core plate can dissipate the seismic energy, while the outer sleeve effectively prevents the buckling of the core plate, ensuring the continuous energy consumption of the support and the provision of stiffness.
由于外套筒不直接受力，几乎没有变形，而芯板在地震作用下会有反复的拉压变形，特别是在芯板的两端，芯板相对外套筒之间的变形尤其大。如果通过合理设计将钢板分别焊接在外套筒侧面和芯板上，并在钢板之间填充具有高耗能特性的粘弹性材料，外套筒与芯板之间的相对变形可以带动粘弹性材料的剪切变形而共同耗能。在外套筒与芯板发生相对变形较小时，在芯板尚未发生屈服而耗能时，粘弹性材料即开始剪切耗能；在外套筒与芯板发生相对变形较大时，由粘弹性材料剪切与芯板屈服共同耗能。这相当于屈曲约束支撑与粘弹性阻尼器的有机结合，从而有效提高了装置的耗能能力，对于减小地震过程中结构的损伤和减轻震后的修复工作、保证人们生命和财产安全具有重要意义。 Since the outer sleeve is not directly stressed, there is almost no deformation, but the core plate will undergo repeated tension and compression deformation under the action of earthquakes, especially at both ends of the core plate, and the deformation between the core plate and the outer sleeve is particularly large. If the steel plates are respectively welded to the side of the outer sleeve and the core plate through reasonable design, and the viscoelastic material with high energy dissipation characteristics is filled between the steel plates, the relative deformation between the outer sleeve and the core plate can drive the viscoelastic material Shear deformation and common energy consumption. When the relative deformation of the outer sleeve and the core plate is small, the viscoelastic material starts to shear and consume energy before the core plate yields; when the relative deformation of the outer sleeve and the core plate is large, the viscoelastic material Shearing and yielding of the core plate jointly dissipate energy. This is equivalent to the organic combination of buckling restraint support and viscoelastic damper, thus effectively improving the energy dissipation capacity of the device, which is very important for reducing structural damage during earthquakes, reducing post-earthquake repair work, and ensuring the safety of people's lives and property significance.
发明内容 Contents of the invention
本发明的目的在于提供新型混合消能减震支撑，在低屈服钢芯板外围套上外套筒，使得芯板在地震作用下发生拉压变形而耗能，外套筒有效防止芯板屈服以保证芯板的持续耗能；同时在分别焊接在外套筒侧面和芯板上的钢板之间填充具有高耗能特性的粘弹性材料，通过外套筒与芯板之间的相对变形带动粘弹性材料的剪切变形而耗能，从而有效提高了装置的耗能能力。 The purpose of the present invention is to provide a new type of hybrid energy-dissipating shock-absorbing support. An outer sleeve is placed on the periphery of the low-yield steel core plate, so that the core plate undergoes tension and compression deformation under the action of an earthquake to consume energy, and the outer sleeve effectively prevents the core plate from yielding. To ensure the continuous energy consumption of the core plate; at the same time, the viscoelastic material with high energy dissipation characteristics is filled between the steel plates welded on the side of the outer sleeve and the core plate respectively, and the viscoelastic material is driven by the relative deformation between the outer sleeve and the core plate. The elastic material is sheared and deformed to dissipate energy, thereby effectively improving the energy dissipation capability of the device.
本发明为新型混合消能减震支撑，包括芯板、外套筒、L形钢板、矩形钢板、粘弹性材料和螺栓孔，其中：两块芯板分别插入外套筒两端，外套筒端部侧面焊接矩形钢板，L形钢板与芯板焊接，在矩形钢板和L形钢板之间填充粘弹性材料，所述减震支撑通过芯板两端的螺栓孔与结构相连。 The invention is a novel hybrid energy-dissipating and shock-absorbing support, which includes a core plate, an outer sleeve, an L-shaped steel plate, a rectangular steel plate, a viscoelastic material and bolt holes, wherein: two core plates are respectively inserted into two ends of the outer sleeve, and the outer sleeve Rectangular steel plate is welded on the side of the end, L-shaped steel plate is welded to the core plate, viscoelastic material is filled between the rectangular steel plate and the L-shaped steel plate, and the shock-absorbing support is connected to the structure through the bolt holes at both ends of the core plate.
本装置可以使得支撑在地震作用下承受压力的时候不致屈曲；而低屈服钢芯板产生反复拉压变形的同时，粘弹性材料会产生剪切变形，两者共同耗散地震能量。本发明在外套筒与芯板一旦发生相对位移时粘弹性材料即开始耗能，克服了传统屈曲约束支撑在小震下不耗能的弊端；在相同大变形条件下，由粘弹性材料和屈曲约束支撑共同耗能，较传统屈曲约束支撑具有更大的耗能能力；粘弹性材料层的层数及尺寸可以根据需要灵活设计。本发明抗震概念设计清晰、结构构造简单、所用材料成本低廉，施工方便，便于更换。 The device can prevent the support from buckling when it bears pressure under the action of an earthquake; while the low-yield steel core plate produces repeated tension and compression deformation, the viscoelastic material produces shear deformation, and the two jointly dissipate the seismic energy. In the present invention, once the relative displacement occurs between the outer sleeve and the core plate, the viscoelastic material will start to consume energy, which overcomes the disadvantage of no energy consumption under the small earthquake of the traditional buckling restraint support; under the same large deformation condition, the viscoelastic material and the buckling Constrained supports consume energy together, and have greater energy dissipation capacity than traditional buckling-constrained supports; the number and size of viscoelastic material layers can be flexibly designed according to needs. The invention has clear anti-seismic conceptual design, simple structure, low cost of materials used, convenient construction and easy replacement.
本发明中，芯板1采用低屈服钢芯板，外套筒2、L形钢板3和矩形钢板4使用的是普通钢材。 In the present invention, the core plate 1 is made of low-yield steel core plate, and the outer sleeve 2, L-shaped steel plate 3 and rectangular steel plate 4 are made of ordinary steel.
本发明中，外套筒2可为方钢管或圆钢管。 In the present invention, the outer sleeve 2 can be a square steel pipe or a round steel pipe.
本发明中，芯板1的横截面可为一字型或十字形。当芯板1的横截面为一字形时，芯板1与外套筒2之间必须设置填充材料灰浆7，填充材料灰浆7与芯板之间涂有无黏结材料8。 In the present invention, the cross-section of the core board 1 can be straight or cross-shaped. When the cross-section of the core plate 1 is straight, a filling material mortar 7 must be arranged between the core plate 1 and the outer sleeve 2, and a non-adhesive material 8 is coated between the filling material mortar 7 and the core plate.
本发明中，粘弹性材料5为高阻尼橡胶或类似具高耗能特性的粘弹性材料。 In the present invention, the viscoelastic material 5 is high damping rubber or similar viscoelastic material with high energy dissipation characteristics.
本发明中，在外套筒2侧面，与L形钢板3之间留有缝隙以防止摩擦；在外套筒2端部，与L形钢板3之间留有足够空间以保证粘弹性材料层足够的变形。 In the present invention, there is a gap between the outer sleeve 2 side and the L-shaped steel plate 3 to prevent friction; at the end of the outer sleeve 2, there is enough space between the L-shaped steel plate 3 to ensure that the viscoelastic material layer is sufficient. out of shape.
本发明中，粘弹性材料5的层数及尺寸可以根据需要灵活设计，只需要将L形钢板3和矩形钢板4交替焊接在芯板1上与外套筒2侧面，并在L形钢板3和矩形钢板4之间填充粘弹性材料5，就可以实现使用多层粘弹性材料的目的。 In the present invention, the number of layers and the size of the viscoelastic material 5 can be flexibly designed according to needs, only the L-shaped steel plate 3 and the rectangular steel plate 4 need to be alternately welded on the core plate 1 and the side of the outer sleeve 2, and the L-shaped steel plate 3 The viscoelastic material 5 is filled between the rectangular steel plate 4 and the multi-layer viscoelastic material can be used.
与传统的屈曲约束支撑相比，本发明的优点是： Compared with traditional buckling restraint braces, the advantages of the present invention are:
(1) 粘弹性材料不会约束和影响低屈服钢芯板的拉压变形，不会影响芯板的耗能能力； (1) The viscoelastic material will not restrain and affect the tension and compression deformation of the low-yield steel core plate, and will not affect the energy dissipation capacity of the core plate;
(2) 在小震情况下，只要芯板开始变形，无论芯板是否屈服，都会带动粘弹性材料的剪切变形，使其开始耗能，这克服了传统屈曲约束支撑在小震下不屈服、不耗能的弊端； (2) In the case of small earthquakes, as long as the core plate starts to deform, no matter whether the core plate yields or not, it will drive the shear deformation of the viscoelastic material, causing it to start dissipating energy, which overcomes the fact that the traditional buckling-constrained support does not yield under small earthquakes , the disadvantage of not consuming energy;
(3) 在大震情况下，随着芯板变形的增大，粘弹性材料的耗能能力也不断增大，可以有效耗散更多的地震能量，减小结构的损伤； (3) In the event of a large earthquake, as the deformation of the core plate increases, the energy dissipation capacity of the viscoelastic material also increases, which can effectively dissipate more seismic energy and reduce structural damage;
(4) 可以根据需要灵活设计屈曲约束支撑的尺寸，灵活设计粘弹性材料的层数和尺寸； (4) The size of the buckling-constrained support can be flexibly designed according to the needs, and the number of layers and the size of the viscoelastic material can be flexibly designed;
(5) 所用材料成本低廉、结构构造简单、施工方便、便于更换，减震效果良好。 (5) The cost of the materials used is low, the structure is simple, the construction is convenient, easy to replace, and the shock absorption effect is good.
附图说明 Description of drawings
图1是本发明一种新型混合消能减震支撑的平面图； Fig. 1 is a plan view of a novel hybrid energy dissipation and shock absorbing support of the present invention;
图2是本发明一种新型混合消能减震支撑当芯板横截面为十字形、含2层粘弹性材料时的正立面图； Fig. 2 is a front elevation view of a novel hybrid energy-dissipating shock-absorbing support of the present invention when the cross-section of the core plate is cross-shaped and contains two layers of viscoelastic materials;
图3是本发明一种新型混合消能减震支撑当芯板横截面为一字形、含4层粘弹性材料时的正立面图； Fig. 3 is a front elevation view of a novel hybrid energy-dissipating shock-absorbing support of the present invention when the cross-section of the core plate is in-line and contains 4 layers of viscoelastic materials;
图4是本发明一种新型混合消能减震支撑当芯板横截面为十字形、含2层粘弹性材料时的A-A截面图； Fig. 4 is an A-A cross-sectional view of a novel hybrid energy-dissipating shock-absorbing support of the present invention when the cross-section of the core plate is cross-shaped and contains 2 layers of viscoelastic materials;
图5是本发明一种新型混合消能减震支撑当芯板横截面为一字形、含4层粘弹性材料时的B-B截面图； Fig. 5 is a B-B cross-sectional view of a novel hybrid energy-dissipating shock-absorbing support of the present invention when the cross-section of the core plate is in-line and contains 4 layers of viscoelastic materials;
图中标号：1为芯板，2为外套筒，3为L形钢板，4为矩形钢板，5为粘弹性材料，6为螺栓孔，7为灰浆，8为无黏结材料。 Numbers in the figure: 1 is a core plate, 2 is an outer sleeve, 3 is an L-shaped steel plate, 4 is a rectangular steel plate, 5 is a viscoelastic material, 6 is a bolt hole, 7 is a mortar, and 8 is a non-adhesive material.
具体实施方式 Detailed ways
下面通过实施例结合附图进一步说明本发明。 The present invention is further illustrated below by means of embodiments in conjunction with the accompanying drawings.
实施例1： Example 1:
如图1~2、4所示，本发明为新型混合消能减震支撑，包括十字形的芯板1、外套筒2、L形钢板3、矩形钢板4、粘弹性材料5和螺栓孔6。芯板1采用低屈服钢芯板，芯板1外围套上外套筒2，芯板1与外套筒2之间连接处填充有灰浆7，灰浆7与芯板1之间涂有无黏结材料8，在外套筒2一端的一个侧面焊接1块矩形钢板4，将2块L形钢板3焊接在芯板1上，2块L形钢板3分别置于矩形钢板4上下并留有空间，在矩形钢板4和L形钢板3之间填充2层粘弹性材料5，外套筒2另一端的另一个侧面以及另一端的两个侧面采用同样的做法，通过芯板1两端的螺栓孔6与结构相连。 As shown in Figures 1 to 2 and 4, the present invention is a novel hybrid energy-dissipating shock-absorbing support, including a cross-shaped core plate 1, an outer sleeve 2, an L-shaped steel plate 3, a rectangular steel plate 4, a viscoelastic material 5 and bolt holes 6. The core plate 1 is made of low-yield steel core plate. The outer sleeve 2 is put on the periphery of the core plate 1. The joint between the core plate 1 and the outer sleeve 2 is filled with mortar 7. Material 8, one rectangular steel plate 4 is welded on one side of one end of the outer sleeve 2, two L-shaped steel plates 3 are welded on the core plate 1, and the two L-shaped steel plates 3 are respectively placed on the upper and lower sides of the rectangular steel plate 4 with space left, Two layers of viscoelastic material 5 are filled between the rectangular steel plate 4 and the L-shaped steel plate 3, the other side of the other end of the outer sleeve 2 and the two sides of the other end adopt the same method, through the bolt holes 6 at both ends of the core plate 1 connected to the structure.
实施例2： Example 2:
如图3、5所示，本发明为新型混合消能减震支撑，包括一字型的芯板1、外套筒2、L形钢板3、矩形钢板4、粘弹性材料5和螺栓孔6。芯板1采用低屈服钢芯板，芯板1外围套上外套筒2，芯板1与外套筒2之间填充灰浆7，灰浆7与芯板1之间涂有无黏结材料8，在外套筒2一端的一个侧面焊接3块矩形钢板4，将2块L形钢板3焊接在芯板1上，2块L形钢板3与3块矩形钢板4位置上从上到下交替摆放并在钢板之间留有空间，在矩形钢板4和L形钢板3之间填充4层粘弹性材料5，外套筒2本端的另一个侧面以及另一端的两个侧面采用同样的做法，通过芯板1两端的螺栓孔6与结构相连。 As shown in Figures 3 and 5, the present invention is a new type of hybrid energy-dissipating shock-absorbing support, including an inline core plate 1, an outer sleeve 2, an L-shaped steel plate 3, a rectangular steel plate 4, a viscoelastic material 5 and bolt holes 6 . The core plate 1 adopts a low-yield steel core plate, the outer sleeve 2 is put on the periphery of the core plate 1, the mortar 7 is filled between the core plate 1 and the outer sleeve 2, and the non-adhesive material 8 is coated between the mortar 7 and the core plate 1, Weld three rectangular steel plates 4 on one side of one end of the outer sleeve 2, weld two L-shaped steel plates 3 on the core plate 1, and place the two L-shaped steel plates 3 and the three rectangular steel plates 4 alternately from top to bottom And leave a space between the steel plates, fill 4 layers of viscoelastic material 5 between the rectangular steel plate 4 and the L-shaped steel plate 3, the other side of the outer sleeve 2 this end and the two sides of the other end adopt the same method, through Bolt holes 6 at both ends of the core plate 1 are connected to the structure.
以上是本发明的典型实例，本发明的实施不限于此。 The above are typical examples of the present invention, and the practice of the present invention is not limited thereto.
Claims (4)
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| CN103485435B (en) * | 2013-08-29 | 2015-09-16 | 同济大学 | The constraint of multisection type combined buckling supports |
| CN103485438B (en) * | 2013-10-08 | 2015-10-28 | 同济大学 | Semi-active control collision damper |
| CN103967148B (en) * | 2014-01-13 | 2016-06-01 | 北京工业大学 | A kind of energy-dissipated brace and making method |
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