TWI600819B - Steel Panel Damper - Google Patents

Description

Steel plate damper

The present invention relates to a steel plate damper, and more particularly to a steel plate damper disposed between members of a building.

Earthquake disasters always bring great loss of life and property. Therefore, improving the seismic characteristics of buildings has always been one of the important topics in the development of structural engineering. Especially in the seismic zone, many buildings are damaged due to frequent earthquakes, endangering humans. Life and property are safe, so it is not only necessary to reinforce the strength of existing buildings, but also to strengthen the earthquake-resistant capacity of new structures.

In recent years, the isolation, seismic, and seismic techniques of various structures have continued to develop. In general, in order to ensure the strength of the building structure to resist the horizontal external forces of earthquakes or winds, it is usually necessary to have a seismic energy dissipating device. It is through these seismic energy dissipating devices to participate in energy dissipation, in order to reduce structural deformation and avoid structural damage under strong external force.

The current common seismic systems can be mainly divided into metal-draining and seismogenic systems and viscoelastic seismic systems. Among them, the metal-draining system is composed of steel plate material, and the seismic energy is dissipated by the inelastic deformation after the steel plate is lowered. The viscoelastic seismic system absorbs the structure due to the deformation characteristics of the special polymer material. The vibration energy caused.

The steel plate damper-containing frame (SPD-MRF) is a kind of metal-drained seismic structure. It uses an additional configuration of steel plate dampers in the traditional bending frame to increase stiffness, strength, toughness and energy dissipation. In addition, the steel plate damper is also a shear-relieving seismic column. However, conventional steel plate dampers generally include an elastic section and an energy dissipation section, wherein the elastic section generally uses a general steel material, and the energy dissipation section uses a low drop strength steel (LYP steel), however, the low relief strength steel is expensive. And the construction is not easy. Therefore, there is an urgent need for a seismogenic system that can be quickly constructed, has low cost, and can greatly improve the earthquake resistance of buildings.

In order to achieve the above object, the present invention provides a steel plate damper for reinforcing a structural member, and the steel plate damper is disposed on the first member of the structural member and the second member relative to the first member The steel plate damper includes: a first connecting member connecting the first member of the building structure; a second connecting member connecting the second member of the building member; an energy dissipating member Provided between the first connecting member and the second connecting member; a first end plate disposed at one end of the energy dissipating member and perpendicular to the energy dissipating member, wherein the first end plate is coupled to the Between the first connecting member and the dissipating member; a second end plate disposed at the other end of the dissipating member and perpendicular to the dissipating member, and the second end plate is coupled to the second connecting member And the at least one stiffening plate is coupled to at least one surface of the energy dissipating member and perpendicular to the energy dissipating member, wherein the stiffening plate and the first end plate, and the second end The board defines a plurality of blocks on the energy dissipating member.

In a preferred embodiment, in the block, a ratio of a maximum long side to a short side is greater than 1.5.

In a preferred embodiment, the first connector and the second connector have a stiffness and strength greater than the stiffness and strength of the dissipator. Therefore, in the steel plate damper provided by the present invention, the first connecting member and the second connecting member serve as elastic segments in the integral damping structure, and the energy dissipating member in the middle serves as a non-elastic segment, so Under the action of earthquake, the energy dissipating component can decompose and dissipate the energy by repeated shearing force. The energy dissipating member can set the appropriate stiffening plate to delay the occurrence of frustration.

In a preferred embodiment of the present invention, the first connecting member, the second connecting member, and the energy dissipating member each have a web and at least one wing located on at least one side of the web and Vertically adjacent to the web, the first connecting member, the second connecting member, and the flap of the dissipating member are respectively a boundary member thereof, the first connecting member, the second connecting member, and the dissipating energy The piece, the wing plate, and the stiffening plate are all made of steel. Therefore, the first connecting member, the second connecting member, and the energy dissipating member may each be selected from the group consisting of H-shaped steel, box steel, L-shaped steel, I-shaped steel, or U-shaped steel, wherein H-shaped steel is further preferred.

In an embodiment, the manner in which the stiffener is disposed is not particularly limited as long as it has a maximum length and a plurality of blocks defined by the first end plate and the second end plate. The ratio of the short sides is greater than 1.5. Wherein the largest long side in the block refers to the long side of the block having the largest side length among all the defined blocks on the energy dissipating member, and the short side refers to the parallel two in the area. The minimum straight line distance between long edges.

The stiffening plate may be disposed on the same surface of the energy dissipating member or may be disposed on two opposite surfaces of the energy dissipating member, and the number of the stiffening plates is not particularly limited. For example, one or more first stiffening plates arranged parallel to each other and one or more second stiffening plates perpendicular to the longitudinal stiffening plate may be disposed on one surface of the energy dissipating member; or the energy dissipating member may be disposed on the dissipating member One surface is provided with a plurality of first stiffening plates arranged in parallel with each other, and one or more second stiffening plates perpendicular to the first stiffening plates are disposed on the other surface of the energy dissipating member. Alternatively, the stiffening plate may be disposed obliquely on the energy dissipating member or crosswise disposed on the energy dissipating member, and may be designed according to requirements without particular limitation.

The first stiffening plate is vertically connected to the first end plate and the second end plate, and the second stiffening plate is perpendicular to the first stiffening plate.

In a preferred embodiment, the first stiffening plate and the second stiffening plate are perpendicular to each other and are respectively formed on the same surface or opposite surfaces of the energy dissipating member.

In a preferred embodiment, the block is substantially rectangular and the aspect ratio of the rectangle is greater than 1.5.

In a preferred embodiment, the first connecting member and the second connecting member are respectively connected to the first member and the second member by welding. The energy dissipating member is also soldered to the first connecting member and the second connecting member, and the first end plate and the second end plate are also welded to the upper and lower sides of the dissipating member. Furthermore, the stiffening plate is also joined to the energy dissipating member by welding.

In the steel plate damper of the present invention, the joining method between the respective members and the first member and the second member of the building member is not particularly limited, and the conventional bolting method or welding method can be used to join the respective members. However, the welding method is preferred, the operation is simple and rapid, and the preparation cost can be reduced.

In another preferred embodiment, the steel plate damper of the present invention further includes a first reinforcing plate disposed on both sides of the first connecting member and connected to the first member; and the steel plate damper Furthermore, a second reinforcing plate is disposed on both sides of the second connecting member and connected to the second member. The first reinforcing plate and the second reinforcing plate increase the connection strength between the first connecting member and the second connecting member and the first member and the second member, so that the building structure is subjected to an earthquake. Seismic energy can be stably transmitted to the energy dissipating member region for energy dissipation, and the first connecting member and the second connecting member are prevented from being bent or sheared.

In a preferred embodiment, the first connecting member and the second connecting member of the steel plate damper of the present invention may have the same depth, and the depth of the energy dissipating member may be the first connecting member and the first The depth of the two connecting members may be longer or shorter, and is not particularly limited as long as the stiffness and strength of the first connecting member and the second connecting member are greater than the stiffness and strength of the dissipating member. can.

In addition, the steel plate damper provided by the present invention is disposed between the first member of the structural member and the second member relative to the first member, and the first member and the second member are opposite For the upper and lower beams of the building structure, in this case, the steel plate damper is arranged upright. However, the first member and the second member may also be between the column and the column of the building structure, in which case the steel plate damper is disposed laterally between the two columns.

The steel plate damper provided by the invention can prepare the steel plate damper by using a commonly used steel material, and the special steel material with low relief strength can be used, the preparation cost can be greatly reduced, and the steel plate damper provided by the invention is Preferably, the upper and lower beams of the structure are joined to each other by welding, and the first connecting member, the dissipating member, the second connecting member, and the boundary plate and the stiffening plate of the steel plate damper structure are preferably By joining to the energy dissipating member by the welding method, the assembling method of the steel plate damper of the present invention is simple, and the time cost of preparation can be reduced.

In the following, examples will be provided to explain in detail embodiments of the invention. The advantages and effects of the present invention will be more apparent by the disclosure of the present invention. The drawings attached hereto are simplified and are used for illustration. The number, shape and size of the components shown in the drawings can be modified according to the actual situation, and the configuration of each component may be more complicated. Other variations and modifications can be made without departing from the spirit and scope of the invention as defined in the invention.

[Example 1]

The steel plate damper 1000 of the present embodiment is shown in FIG. 1 and FIG. 2, wherein FIG. 1 is a front view of the steel plate damper 1000, and FIG. 2 is a side view of the steel plate damper 1000. As shown, the steel plate damper 1000 includes a first connecting member 1; a second connecting member 2; an energy dissipating member 3; two stiffening plates 5; a first end plate 6; and a second end plate 7. The first connecting member 1, the second connecting member 2, and the dissipating member 3 each have a web 11, 21, 31 and two flaps 12, 22, 32 on both sides of the web. It consists of H-shaped steel. And the first connecting member 1 is connected to the first member (upper beam) 91 of a building structure by a welding method, and the second connecting member 2 is connected to the second member of the building body by a welding method (lower The beam 92 is connected, and the energy dissipating member 3 is joined between the first connecting member 1 and the second connecting member 2 by a welding method. Alternatively, the first connecting member 1 and the second connecting member 2 can also be connected to the first member (upper beam) 91 and the second member (lower beam) 92 of the building body by means of latching, respectively. No restrictions.

And the stiffening plate 5 is a first longitudinal stiffening plate 51 formed on the same surface of the web 31 of the energy dissipating member 3, and the upper end of the stiffening plate 5 is connected to the first end plate 6, The lower end is connected to the second end plate 7, and as shown, the stiffening plate 5, the first end plate 6, the second end plate 7, and the flap 32 of the energy dissipating member 3 are attached to the The energy element 3 defines three rectangular blocks 4, wherein among the three blocks 4, the largest long side D1 (long side of the rectangular block 4) and one short side D2 (rectangular block) The ratio of the short side of 4 is greater than 1.5.

In addition, the steel plate damper 1000 further includes two first reinforcing plates 81 disposed on two sides of the first connecting member 1 and connected to the first member 91; and two second reinforcing plates 82, The two sides of the second connecting member 2 are disposed on the two sides of the second connecting member 2 and connected to the second member 92. The first reinforcing plate 81 and the second reinforcing plate 82 can strengthen the connection strength between the first connecting member 1 and the first member 91 and between the second connecting member 2 and the second member 92.

In addition, in the steel plate damper of the present embodiment, except that the energy dissipating member 3 is composed of SN400B steel, the remaining components are all made of SN490B steel, and the dimensional design thereof is shown in Table 1.

[Embodiment 2]

The steel plate damper 2000 provided in this embodiment is shown in FIG. 3 and FIG. 4, wherein FIG. 3 is a front view of the steel plate damper 2000, and FIG. 4 is a side view of the steel plate damper 2000. As shown, the steel plate damper 2000 of the present embodiment is substantially the same as the steel plate damper 1000 of the first embodiment, except that the number of the stiffening plates 5 is three, including two longitudinal first stiffening plates. 51. A lateral second stiffening plate 52, and two first stiffening plates 51 and a second stiffening plate 52 are formed on different surfaces of the energy dissipating member 3. Therefore, as shown, the stiffening plate 5 and the first end plate 6, the second end plate 7, and the wing 32 of the energy dissipating member 3 are defined on the dissipating member 3 as six rectangular shapes. Block 4, wherein among the six blocks 4, the ratio of the largest long side D1 (the long side of the rectangular block 4) to the short side D2 (the short side of the rectangular block 4) is greater than 1.5.

Table 1         <TABLE border="1" borderColor="#000000" width="85%"><TBODY><tr><td> </td><td> component </td><td> section (mm) </ Td><td> length (mm) </td><td> stiffener (mm) </td><td> first end plate second end plate (mm) </td></tr><tr> <td> First stiffener</td><td> Second stiffener</td></tr><tr><td> Example 1 </td><td> Energy dissipating device</td>< Td><i>H</i> 600 × 250 × 8 × 30 </td><td> 1200 </td><td> 12 × 100 </td><td> - </td><td> 12 × 100 </td></tr><tr><td> First connector second connector</td><td><i>H</i> 600 × 250 × 22 × 30 </td ><td> 700 × 2 </td><td> - </td></tr><tr><td> Example 2 </td><td> Energy Dissipation </td><td>< i>H</i> 600 × 250 × 8 × 30 </td><td> 1200 </td><td> 12 × 100 </td><td> 25 × 100 </td><td> 12 × 100 </td></tr><tr><td> First connector second connector</td><td><i>H</i> 600 × 250 × 22 × 30 </td> <td> 700 × 2 </td><td> - </td></tr></TBODY></TABLE>

[Example 3]

The steel plate damper 3000 provided in this embodiment is as shown in FIG. 5. The steel plate damper 3000 is substantially the same as the steel plate damper 1000 provided in the first embodiment, and differs in the arrangement and number of the stiffening plates. As shown in FIG. 5, the number of the stiffening plates 5 is eight and is arranged obliquely, and the diagonal stiffening plates 53 are parallel to each other and are disposed on the same surface of the web 31 of the energy dissipating member 3. on. Therefore, as shown, the diagonal stiffening plate 5 defines nine blocks on the energy dissipating member 3, and among the nine blocks, the block having the largest long side is the block 4' And the ratio of its largest long side D1' to its short side D2' is greater than 1.5.

[Example 4]

The steel plate damper 4000 provided in this embodiment is shown in FIG. 6 and includes a first connecting member 1, a second connecting member 2, an energy dissipating member 3, a stiffening plate 5, and a first end plate 6. And a second end plate 7. In the embodiment, the depth L2 of the energy dissipating member 3 is smaller than the depth L1 of the first connecting member 1 and the second connecting member 2, and the stiffness and strength of the first connecting member 1 and the second connecting member 2 are greater than The stiffness and strength of the energy dissipating member 3. The first connecting member 1, the second connecting member 2, and the dissipating member 3 each have a web 11, 21, 31 and two flaps 12, 22, 32 on both sides of the web. It consists of H-shaped steel. And the first connecting member 1 is connected to the first member (upper beam) 91 of a building structure by a welding method or a latching method, and the second connecting member 2 is connected to the building by a welding method or a latching method. The second member (lower beam) 92 of the structure is connected, and the energy dissipating member 3 is joined between the first connecting member 1 and the second connecting member 2 by welding. In addition, the number of stiffening plates disposed on the energy dissipating member is three, including two first stiffening plates (longitudinal) 51 and one second stiffening plate (lateral) 52, and the first stiffening plate 51 and the second stiffening plate 52 It is formed on different surfaces of the energy dissipating member 3. As shown, the stiffening plate 5, the first end plate 6, the second end plate 7, and the flap 32 of the energy dissipating member 3 define six rectangular blocks 4 on the dissipating member 3. And the ratio of the largest long side to the short side is greater than 1.5.

[Example 5]

The steel plate damper 5000 provided in this embodiment is shown in FIG. 7. As shown in the figure, the steel plate damper 5000 includes a first connecting member 1, a second connecting member 2, an energy dissipating member 3, and three The stiffener 5, a first end plate 6, and a second end plate 7. Wherein, the first connecting member 1, the second connecting member 2, and the dissipating member 3 of the steel plate damper 5000 are composed of the same wide-wing H-shaped steel plate, and each has a web 11, 21 in sequence. 31 and two wings 12, 22, 32 on either side of the web. The first connecting member 1 and the second connecting member 2 each further comprise two fixing plates 13 and 23 disposed at the front and back surfaces of the webs 11 and 21 of the H-shaped steel plate such that the first connecting member 1 and the second connecting member The stiffness and strength of 2 are greater than the stiffness and strength of the energy dissipating member 3.

In detail, referring to the cross-sectional view of the first connecting member 1 shown in FIG. 8, the applying plate 13 can be attached to the front and back surfaces of the web 11 of the H-shaped steel plate to lift the first connecting member. The strength and stiffness of 1 or, as shown in FIG. 9, the plate 13 is disposed parallel to the web of the H-shaped steel plate, and the strength and stiffness of the first connecting member 1 can also be improved. Wherein, the cross section of the second connecting member 2 is the same as the cross section of the first connecting member 1, and the reinforcing plate also provides the strength and stiffness of the second connecting member 2, so that the first connecting member 1 and the second connecting member 2 are strong. The degree and strength are greater than the stiffness and strength of the energy dissipating member 3.

In addition, the number of the stiffening plates 5 on the energy dissipating member 3 is three, including two longitudinal first stiffening plates 51 and one lateral second stiffening plate 52, and the first stiffening plate 51 and the second stiffening plate 52 are formed. On the different surfaces of the energy dissipating member 3, the stiffening plate 5, the first end plate 6, and the second end plate 7 define six rectangular blocks 4 on the dissipating member 3, and The ratio of the largest long side D1 (the long side of the rectangular block) to the short side D2 (the short side of the rectangular block) is greater than 1.5.

[Embodiment 6]

The steel plate damper 6000 provided in this embodiment is as shown in FIG. 10, and the steel plate damper 6000 is substantially the same as the steel plate damper 5000 provided in the fifth embodiment, and the difference is that the first connecting member 1 and the first The two connecting members 2 each include two reinforcing plates 14, 24 which cross each other, are disposed on one surface of the webs 11, 21 of the H-shaped steel plate, or are respectively disposed on the front and back surfaces of the webs 11, 21 . For example, two reinforcing plates 14 as shown in FIG. 10 may be disposed on the same surface of the web 11, or two reinforcing plates 24 may be disposed on different surfaces of the web 21, and may be disposed according to requirements. The stiffness and strength of the first connecting member 1 and the second connecting member 2 are provided such that the stiffness and strength of the first connecting member 1 and the second connecting member 2 are greater than the stiffness and strength of the dissipating member 3.

[Test Example 1] - Steel plate damper repeated load test

In this test example, the steel plate dampers 1000 and 2000 provided in the first embodiment and the second embodiment were used as test pieces, and a multi-degree-of-freedom multi-axial testing system (MATS) was used to carry out repeated load tests. MATS can apply vertical force, lateral force, and pour bending moments, six degrees of freedom. The loading duration of this test is based on the repeated load test specification for beam purchases [AISC341-10 2010]. The in-plane displacement angles are: 0.125%, 0.375%, 0.50%, 0.75%, 1.0%, 1.5%, 2%, 3%, 4%, and 5%. Assuming a height of 3.6 meters, each displacement angle is sequentially performed 6, 6, 6, 6, 4, 2, 2, 2, 2, and 2 cycles. The loading duration is shown in Figure 6, and the remaining boundary conditions are There is no rotation at the upper and lower ends of the MATS, and the test body is in a state of no axial force during the test, and the upper and lower ends of the test piece have no relative displacement in the out-of-plane direction.

The test results of the steel plate dampers 1000 and 2000 provided in the first embodiment and the second embodiment are as shown in Fig. 7, and the maximum shear deformation of the energy dissipating member is 0.11. On the other hand, it was found that the Cumulative Plastic Deformation (CPD) of the steel sheet damper 1000 of Example 1 was 127, and the steel plate damper 2000 of Example 2 had a CPD of 143. It was confirmed that the stiffener provided by the present invention can delay setback and have similar toughness capacity.

From the results of the test examples, it can be found that the shear deformation of the dissipative region of the steel plate damper provided in Embodiments 1 and 2 can reach 0.11 radians and the cumulative plastic deformation can reach 127 or more, which is designed by the present invention. The steel plate damper has high toughness and high energy dissipation capacity. Therefore, under the action of the earthquake, the energy dissipating member in the core section of the steel plate damper can reduce the deformation and release energy by the repeated shear force, and the stiffening plate disposed on the energy dissipating member can delay the occurrence of buckling.

1000, 2000, 3000, 4000, 5000, 6000‧‧‧ steel dampers

1‧‧‧First connector

2‧‧‧Second connector

3‧‧‧Dissipating parts

11, 21, 31‧‧‧ web

12, 22, 32‧‧‧ wing

13, 23‧‧‧Plate

14, 24‧‧‧ Strengthening board

4, 4’‧‧‧ Blocks

5‧‧‧ stiffener

51‧‧‧First stiffener

52‧‧‧Second stiffener

53‧‧‧ oblique stiffener

6‧‧‧First end plate

7‧‧‧ second end plate

81‧‧‧First stiffener

82‧‧‧Second reinforcing plate

91‧‧‧First component

92‧‧‧Second component

D1, D1’‧‧‧Maximum long side

D2, D2’‧‧‧ Short side

L1, L2‧‧‧ Depth

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a front elevational view showing a steel sheet damper in Embodiment 1 of the present invention. Fig. 2 is a side view showing the steel plate damper in the first embodiment of the present invention. Figure 3 is a front elevational view showing a steel plate damper in Embodiment 2 of the present invention. Figure 4 is a side view showing the steel plate damper of Embodiment 2 of the present invention. Figure 5 is a front elevational view showing a steel plate damper in Embodiment 3 of the present invention. Figure 6 is a front elevational view showing a steel plate damper in Embodiment 4 of the present invention. Figure 7 is a front elevational view showing a steel plate damper in Embodiment 5 of the present invention. Figure 8 is a cross-sectional view showing the first connecting member in the fifth embodiment of the present invention. Figure 9 is a cross-sectional view showing a first connecting member in another embodiment of Embodiment 5 of the present invention. Figure 10 is a front elevational view showing a steel plate damper in Embodiment 6 of the present invention. Figure 11 is a schematic illustration of the loading duration in Test Example 1 of the present invention. Figure 12 is a schematic illustration of the test results in Test Example 1 of the present invention.

1000‧‧‧Steel damper

1‧‧‧First connector

2‧‧‧Second connector

3‧‧‧Dissipating parts

11, 21, 31‧‧‧ web

12, 22, 32‧‧‧ wing

4‧‧‧ Block

5‧‧‧ stiffener

51‧‧‧First stiffener

6‧‧‧First end plate

7‧‧‧ second end plate

81‧‧‧First stiffener

82‧‧‧Second reinforcing plate

91‧‧‧First component

92‧‧‧Second component

D1‧‧‧Maximum long side

D2‧‧‧ Short side

Claims (10)

A steel plate damper for reinforcing a structural member, the steel plate damper being disposed between the first member of the structural member and the second member opposite to the first member, and comprising: a first a connecting member is connected to the first member of the building body; a second connecting member is connected to the second member of the building body; an energy dissipating member is disposed on the first connecting member and the second connecting portion a first end plate disposed at one end of the energy dissipating member and perpendicular to the energy dissipating member, and the first end plate is connected between the first connecting member and the dissipating member; a second end plate disposed at the other end of the energy dissipating member and perpendicular to the energy dissipating member, wherein the second end plate is connected between the second connecting member and the energy dissipating member; and at least one stiffening plate is connected And on the at least one surface of the energy dissipating member and perpendicular to the energy dissipating member; wherein the stiffening plate and the first end plate and the second end plate are bound to the energy dissipating member to define a plurality of blocks And the first connector, the second connector, and the energy dissipating member each have a web, and at least Wing, the wing is located at least one side of the web and perpendicular to the web. The steel plate damper according to claim 1, wherein a ratio of a maximum long side to a short side of the block is greater than 1.5. The steel plate damper according to claim 1, wherein the first connecting member and the second connecting member have a stiffness and strength greater than a stiffness and strength of the dissipating member. The steel plate damper according to claim 1, wherein the first connecting member, the second connecting member, and the dissipating member are respectively selected from the group consisting of H-shaped steel, box steel, L-shaped steel, and I-shaped steel. Or U-shaped steel. The steel plate damper according to claim 1, wherein the first connecting member, the second connecting member, and the energy dissipating member are H-shaped steel. The steel plate damper of claim 1, wherein the stiffening plate comprises at least one first stiffening plate, the first stiffening plate being vertically connected to the first end plate and the second end plate. The steel plate damper of claim 6, wherein the stiffening plate further comprises at least one second stiffening plate, the second stiffening plate being perpendicular to the first stiffening plate. The steel plate damper according to claim 7, wherein the first stiffening plate and the second stiffening plate are respectively formed on the same surface or opposite surfaces of the dissipating member. The steel plate damper according to claim 1, wherein the block is substantially a rectangle, and the aspect ratio of the rectangle is greater than 1.5. The steel plate damper of claim 1, wherein the stiffening plate is joined to the energy dissipating member by a welding method.