JP6479371B2 - Joint structure of seismic control frame - Google Patents

Description

  The present invention attenuates vibrations in the opposing direction of a column of a frame having columns facing each other at a distance and the beam laid between the columns by using the tensile force of the construction material that can bear the tensile force and the like. It relates to the joint structure of a seismic control frame.

  When attempting to dampen the vibration of a frame (structure) during an earthquake using the tensile force of a tensile material that can bear the tensile force, such as PC steel or steel, the relative generated between the tensile material and the frame The displacement or the relative speed at the time of relative displacement is transmitted to a vibration control device (damper) installed across the tension member and the frame (see Patent Document 1).

  The relative displacement between the tension member and the frame is generated when the frame is deformed in the direction of the horizontal force during an earthquake or the like, and the tension member does not follow the deformation of the frame and stays at the original position. Although the tensile material remains in the original position regardless of the deformation of the frame, it is realized by the relative displacement caused by the interlayer deformation between the lower floor and the upper floor of the frame (paragraph 0056, FIG. 4). Even if both ends of the tensile material are connected to the same floor of the frame, relative displacement cannot be generated between them. Therefore, it is necessary to connect both ends of the tensile material to the lower and upper floors of the frame. become.

  In this relationship, the tensile material is installed in a direction inclined with respect to the horizontal direction and the vertical direction, but the vibration of the frame alternately occurs in the positive and negative directions, so that it is installed symmetrically with respect to the vertical line. . The intersection of the tensile members erected in these two directions will be connected to the upper floor of the frame. However, in order to keep the intersection in the original position for the vibrating frame, the point of intersection directly to the frame, Since it is difficult to connect freely movable in the horizontal direction, it is necessary to connect the intersection point to a movable body (slider) that can freely slide in the horizontal direction with respect to the frame (paragraph 0043, Figure 2).

  Unless tension is applied, a tensile material such as a cable that does not have the ability to maintain its form cannot maintain its shape as an intersection even in a state where it is connected across two directions. Therefore, it is indispensable to use a moving body to insulate the intersection of the tensile members in the two directions from the vibration of the frame.

JP 2008-240289 A (Claim 1, paragraphs 0039 to 0063, FIG. 4)

  In this way, in Patent Document 1, a tensile material independent from the vibration of the frame is connected to the frame so that a relative displacement is generated in the horizontal direction with the frame when the frame is vibrated. Since it is necessary to arrange a movable body that can move in the horizontal direction with respect to the frame in order to generate it, the number of components for generating a damping force in the vibration control device is increased.

  In addition, when vibration is generated in the frame and damping force is generated in the vibration control device, the reaction force of the damping force generated in the vibration control device acts on the tensile material. Therefore, as the reaction force, only the horizontal component of the tensile force generated in the tensile material can be resisted, so the utilization efficiency as the reaction force of the tensile force generated in the tensile material is poor.

  From the background described above, the present invention does not require the combined use of a moving body incorporated in the frame in order to generate a damping force in the vibration control device using a tension member or the like that is installed separately from the frame. We propose a joint structure for a seismic control frame that uses a construction material such as a tensile material that has a good load-bearing efficiency for the reaction force received from the device.

The joint structure of the seismic response control frame according to the first aspect of the present invention is a structure having a column facing at a distance and a beam installed between the facing columns and joined to the column. An independent erection material is erected in the direction in which the pillars face each other, and is fixed directly or indirectly to the ground in at least a part of the axial direction, and between this erection material and the frame, between the frame When the relative displacement in the axial direction of the erection material is generated, a seismic control device that intervenes in the axial direction of the erection material and deforms in the axial direction to generate a damping force is included.

  The columns are opposed to the span direction, which is the construction direction of the beam, but they are also arranged in the row direction perpendicular to that direction, and the frame is basically perpendicular to the columns and beams that are opposed to these two directions, and the direction of the beam. It consists of girders that are erected in the direction of “A frame with beams installed between columns” needs to have at least one span in both the span direction and the row direction, that is, two columns in each direction. As shown in FIG. There is no need to have a pillar.

  Deformation (vibration) of the frame during an earthquake, etc. can occur in the beam erection direction (span direction) and the beam erection direction (girder row direction), but the vibration damping of the frame by the seismic control device is basically erection of the beam Target the direction and, in some cases, the installation direction of the girder. Since the installation direction of the installation material is the direction in which the columns face each other (span direction), it is substantially horizontal, but it does not necessarily have to be horizontal and may be inclined with respect to the horizontal. . The direction of vibration of the frame is the installation direction of the installation material.

  The erection direction of the beam 3 is the direction in which the columns 2 and 2 are opposed to each other. However, the beam 3 is not necessarily laid horizontally between the adjacent columns 2 and 2 but is erected in a mountain shape or in a curved state. Sometimes. 4- (a) and (b) show an example of installation when the beam 3 is a flat truss or a solid truss, but the form of the beam 3 and the method of joining to the column 2 are not limited.

  “The erection material is erected independently from the framing” means that the erection material 5 is oscillated (deformed) in the erection direction of the beam 3 during an earthquake or the like as shown in FIG. This means that the original erection state is maintained without following the vibration of the frame 1, and the erection material 5 maintains the original erection state even when the frame 1 vibrates, thereby causing relative displacement between the frame 1 and the frame 1.

As shown in FIGS. 1 to 3, the erection material 5 is connected to the gantry 1 via a vibration control device 6 in the erection direction of the beam 3. When the vibration in the erection direction of the girder 4 of the frame 1 is also damped by using the vibration control device 6, the erection material 5 is erected in the girder direction as shown in FIGS. The vibration control device 6 is interposed between the parts. The “frame” on which the vibration control device 6 is arranged refers to any part of the frame 1, and in the erection direction of the beam 3, the column 2 constituting the frame 1, the beam 3, or the joint of the column / beam A bracket or the like that protrudes from either of them toward the erection position of the erection material 5. Sections other than the fixing portion of the construction material 5 to the ground 12 are constructed in parallel with the beam 3 of the frame 1, and the vibration control device 6 is constructed between the column 2 of the frame 1 and the construction material 5. ).

  Since the erection state of the erection material 5 needs to be independent of the vibration of the erection frame 1, at least a part of the erection material 5 in the axial direction (length direction) is required to obtain a reaction force from the ground 12. 1 and is fixed directly or indirectly to the ground 12. “At least a part in the axial direction” mainly includes a case of both ends in the axial direction, a case of an intermediate portion excluding both ends, and a case of at least one end and an intermediate portion in the axial direction. . Sections other than the part fixed to the ground 12 in the construction material 5 are not directly connected to the frame 1 and are kept separated (insulated) from the frame 1 and separated from the frame 1 The vibration control device 6 is interposed in at least one of the portions.

“The construction material is indirectly fixed to the ground” means that a part of the construction material 5 is directly disposed on at least a part of the construction material 5 in the axial direction, and the shaft such as the tensile force of the construction material 5 is It is connected to the reaction force member 10 that transmits to the ground 12 while bearing the directional force (claim 2). The axial force of the construction material 5 includes a compressive force. The erection material 5 is connected to the reaction force members 10 and 10 at at least two locations including both ends in the axial direction or an intermediate portion, and the displacement is restrained (Claim 2). The reaction force member 10 is fixed to the ground 12, bears the axial force of the construction material 5, and transmits it to the ground 12 (claim 2). The construction material 5 is fixed to the ground 12 in a part in the axial direction, and is separated from the construction 1 without being connected to the construction 1 in the other sections, and is constructed in the vibration direction of the construction 1 so as to be separated from the ground 12. The force can be received as an axial force.

  Further, since the section excluding the fixing portion of the erection material 5 on the ground 5 can be erected in parallel (horizontal) to the erection direction of the beam 3 and not connected to the framing 1, Without causing the erection material 5 to follow the framing 1, it is possible to maintain the erection state in the direction (span direction) in which the pillars 2 and 2 are opposed to each other, that is, horizontally, independently. As a result, when vibration in the erection direction of the beam 3 (erection direction of the erection material 5) occurs in the frame 1, the erection material 5 maintains the state before vibration of the frame 1 regardless of the vibration of the frame 1. A relative displacement occurs between the frame 1 and the frame 1. This relative displacement becomes the relative displacement generated in the vibration control device 6 as it is.

  Since the reaction force member 10 transmits the tensile force and the compression force acting on the construction material 5 to the ground 12 while bearing it, the reaction force member 10 has a seismic wall which can be a resistance element (seismic element) against horizontal force, FIG. In addition to the pillar / beam frame shown in (a), the frame with braces shown in (b), or the single pillar shown in FIG. 5- (b), an oblique material such as a cable shown in FIG. A combination of ground anchors 11 to be connected is used. The reaction force member 10 is arranged at least in the axial direction of the construction material 5 where the construction material 5 is to be fixed to the ground 12, but is mainly arranged at an end portion or an intermediate portion of the construction material 5. The

  The structure (form) of the reaction force member 10 may be determined depending on whether the construction material 5 can bear only the tensile force, the compressive force, or the tensile force and the compressive force. As shown in FIGS. 4 and 5, the reaction force member 10 is embedded in the ground 12 on the leg or the foundation integrated therewith, or the ground anchor 11 penetrating the leg is fixed in the ground. As a result, it is fixed to the ground 12.

  Whether the reaction member 10 is arranged at both ends of the construction material 5 in the axial direction or in an intermediate section other than the both ends is basically determined by whether the construction material 5 has a tensile force and a compression force. It is determined depending on whether only one of them can be borne or whether both tensile force and compressive force can be borne. When the construction material 5 can bear only the tensile force or the compression force, the construction material 5 bears the tensile force or the compression force in the direction of deformation of the structure 1, but the tensile force of the construction material 5 is the same as that of the structure 1. The reaction force member 10 disposed on the opposite side of the deformation direction needs to be borne, and the compressive force needs to be borne by the reaction force member 10 disposed on the deformation direction side of the frame 1. For this reason, the reaction force member 10 is configured so that the reaction force member 10 can bear the tensile force and the compression force generated in the erection material 5 when the frame 1 is deformed in any of the positive and negative directions, as shown in FIGS. As shown in FIG. 4, the construction material 5 is disposed at both ends in the axial direction. FIG. 5 shows only one side (left side) of the frame 1 having a symmetrical shape in the span direction.

  When the reaction member 10 is arranged at both ends in the axial direction of the construction material 5 and the construction material 5 can bear the tensile force and the compression force, the reaction force arranged on the deformation direction side of the frame 1. Since the compressive force acts on the construction material 5 whose displacement is constrained to the member 10 and the reaction member 10 on the side can bear the compressive force of the construction material 5, the construction material 5 exerts a tensile force and a compressive force. When the burden can be applied, the reaction force member 10 may be disposed at both ends of the construction material 5 in the axial direction. The reaction force member 10 disposed on the opposite side of the deformation direction of the frame 1 bears the tensile force of the building material 5.

  When the erection material 5 can bear the tensile force and the compression force, the reaction force member 10 is also arranged at the intermediate portion in the axial direction of the erection material 5 as shown in FIGS. 4- (a) and (b). Tensile force acts on the section of the construction material 5 located on the deformation side of the frame 1 with respect to the reaction force member 10, and on the section of the construction material 5 located on the opposite side of the deformation member 1 on the reaction force member 10. Although the compressive force acts, the reaction force member 10 can bear the tensile force and the compressive force in any section. Therefore, it is sufficient if the reaction force member is arranged at one place in the intermediate portion in the axial direction of the construction material 5. .

  The erection material 5 is fixed to the ground 12 in a part of the axial direction, and is connected to the frame 1 via the vibration control device 6 in the erection direction of the beam 3, so that the erection direction of the beam 3 (erection) When the vibration in the erection direction of the material 5 occurs, the erection material 5 tries to follow the vibration of the frame 1, but the displacement from the original position is restrained by the reaction force member 10. In order to maintain the state, a relative displacement is generated between the frame 1 and the frame 1. The relative displacement between the frame 1 and the construction material 5 is directly deformed in the axial direction of the vibration control device 6, and the vibration control device 6 generates a damping force according to the deformation amount or the speed at the time of deformation. .

  Since the erection direction of the erection material 5 is the erection direction of the beam 3 of the frame 1 and is substantially horizontal, a relative displacement occurs in the axial direction of the erection material 5 with the erection material 5 when the frame 1 vibrates. . When the construction material 5 tries to follow the relative displacement between the construction material 1 and the construction material 1, the construction material 5 receives a reaction force in the direction opposite to the displacement direction of the construction material 1 from the reaction force member 10. The reaction force received by the construction material 5 from the reaction force member 10 gives the vibration damping device 6 axial deformation of the construction material 5, so the direction of deformation of the vibration control device 6 and the reaction force of the construction material 5 (axial force). The direction of is the same.

  Since the erection material 5 is fixed to the ground 12 at least in a part in the axial direction, sections other than the fixing part to the ground 12 do not follow the vibration of the frame 1 and are always parallel to the erection direction of the beam 3. Since the installation state can be maintained, it is not necessary to install a part corresponding to the moving body of Patent Document 1 in order to make the section other than the fixing portion of the installation material 5 independent (insulated) from the vibration of the structure 1. The components for generating a damping force in the vibration control device 6 installed between the installation material 5 are reduced.

  In addition, since the section other than the fixing portion of the construction material 5 on the ground 12 is maintained parallel to the beam 3 of the frame 1, horizontal displacement occurs between the construction material 5 and the frame 1. When the damping device 6 is deformed and a damping force is generated, a tensile force or a compressive force is generated as a reaction force received from the damping device 6 in the axial direction of the construction material 5. Here, since the acting direction of the reaction force from the vibration control device 6 generated in the construction material 5 coincides with the axial direction of the construction material 5, the axial force that can be borne by the construction material 5 is the reaction force. Since it is used effectively, the utilization efficiency as a reaction force of the axial force generated by the erection material 6 is high.

  When the frame 1 vibrates in the erection direction of the beam 3 and a horizontal relative displacement occurs between the column 2 and the erection material 5, the vibration control device 6 interposed between the column 2 and the erection material 5 includes Since the construction material 5 is deformed in the same direction as the relative displacement direction with respect to the column 2, the relative displacement between the construction material 5 and the frame 1 or the relative speed at the time of relative displacement is directly controlled as described above. A damping force is generated in the seismic device 6 according to the relative displacement and the like.

  Since the relative displacement between the frame 1 and the building material 5 mainly covers the installation direction of the beam 3 of the frame 1, a relative displacement in that direction or a damping force corresponding to the relative speed at the time of the relative displacement is generated. If it is a form, the form of the damping device 6 will not be ask | required. Specifically, the damping device 6 includes, for example, a viscous damper such as an oil damper having a piston rod that expands and contracts in the relative displacement direction, a friction damper, a viscoelastic damper of a type that uses relative movement in the relative displacement direction, and elastoplasticity. A damper or the like is used.

  The seismic control device 6 generates a damping force at the time of relative displacement in the horizontal direction between the column 2 of the frame 1 and the building material 5, thereby reducing the vibration of the frame 1 during an earthquake or wind load and increasing the shaking. If the expansion and contraction of the frame 1 due to temperature changes cannot be ignored, as in the case where the span 1 of the frame 1 is large, stress is generated in the frame 1 even when the frame 1 expands and contracts due to temperature changes. Work to avoid.

  Since a horizontal force acts in the positive and negative directions from the frame 1 when the frame 1 vibrates, the frame member 5 connected to the frame 1 via the vibration control device 6 applies the horizontal force to a tensile force or a compression force. Bear as a force. When the construction material 5 is, for example, a tension material that can bear only a tensile force, a section located on one side in the axial direction with respect to the vibration control device 6 bears the tensile force in the entire length of the construction material 5. The section located on the side does not bear the axial force (compression force). When the construction material 5 can bear the tensile force and the compressive force, the section located on one side of the vibration control device 6 bears the tensile force, and the other side bears the compressive force.

The construction material 5 is assembled from a plurality of steel materials as shown in FIG. 3 in addition to a single piece of PC steel, steel (shape steel) and fiber reinforced material as shown in FIGS. 1 and 2, and bears compressive force. A flat truss or a solid truss to obtain is used. Even when the construction material 5 is a steel material, a compressive force can be borne within a range in which buckling does not occur. When the construction material 5 is a tension material such as a PC steel material, since the tension force is previously introduced into the construction material 5 (Claim 6 ), it does not shrink even under the burden of compressive force. Even when a compressive force is applied, the occurrence of buckling due to the load of the compressive force can be avoided. In this case, if a tension force having a magnitude exceeding the magnitude of the compressive force assumed to act on the construction material 5 is applied to the construction material 5 in advance, the construction material can be applied even when the compression force acts on the construction material 5. Since 5 is not relaxed, it is possible to continue supporting the vibration control device 6 in a stable state.

  When tension is applied to the construction material 5 in advance, the construction material 5 such as PC steel having low rigidity is less likely to generate vibration in the width direction (radial direction), thereby stabilizing the vibration control device 6. Therefore, when the frame 1 vibrates in the horizontal direction, the vibration can be reliably transmitted to the vibration control device 6 and can be easily damped.

  When the frame 1 vibrates, the amplitude with respect to the ground 12, that is, the relative displacement with respect to the ground 12 is maximum at the position of the top of the column 2 when the column 2 is one layer, and the building material 5 that maintains the original erected state The relative displacement amount is also maximized at the top position of the column 2. When the pillar 2 extends over a plurality of layers, the relative displacement amount with respect to the ground 12 in the intermediate section sandwiched between the joint portions of the pillar 2 and the upper and lower beams 3 that become antinodes of vibration is the relative displacement amount at the joint position. Become bigger.

  Therefore, in order to effectively generate a damping force in the vibration control device 6 using the relative displacement between the frame 1 and the building material 5, the column in the case where the section other than the both ends of the building material 5 has one layer is used. In the case of a plurality of layers, the position of the top of 2 or the position near the top passes through the position of the intermediate section other than the position of the joint portion of the pillar 2 with the beam 3, and the direction in which the beam 3 is erected. It is reasonable to install them in parallel. “The position near the top of the column” refers to a position closer to the top than the leg in the total length from the leg to the top (head) of the column 2 when the column 2 is for one layer. The “position of the intermediate section” refers to a section of the intermediate section sandwiched between the joint position on the lower layer side and the joint position on the upper layer side.

In order to improve the stability in a state where the vibration control device 6 is installed between the frame 1 and the building material 5, the building material 5 is concretely at least one of the width direction and the height direction of the column 2 of the frame 1. Are arranged in parallel in these directions (claim 4 ). Directly to all erection member 5 of a plurality of, or is indirectly arranged junction plates 8 over, directly to the junction plate 8 erection member 5, or is indirectly fixed, and the bonding plate 8 the Frame 1 The vibration control device 6 is installed between the two (claim 4) . “Indirectly straddling the joining plate over the entire construction material” means that, for example, as shown in FIGS. 1A and 1B, the entire construction material 5 is connected to each other by the connection material 7 and then the connection material 7. This means that the joining plate 8 is fixed.

  As shown in FIG. 3, when the three-dimensional truss is constructed from the construction material constituting material 51 and the diagonal material 52 as a plurality of string materials such as four as shown in FIG. 3, the construction material 5 is arranged in the width direction of the column 2. This corresponds to a shape arranged in parallel in the height direction.

  FIG. 1 shows an example in which the erection material 5 is juxtaposed in the width direction and the height direction of the column 2, but “in parallel in at least one of the column width direction and the height direction” The case where the construction materials 5 and 5 of a book are parallel in the width direction and height direction of the pillar 2, for example is included. The “plurality” is not limited to two or four, but may be an odd number such as three. In these cases, the joining plate 8 is fixed across at least two construction members 5 and 5, and the damping device 6 is installed between the joining plate 8 and the frame 1 to support the damping device 6. Since the construction materials 5 and 5 to be maintained are easy to maintain stability, it is possible to apply an axial force without applying an eccentric load to the vibration control device 6 at the time of relative displacement between the construction frame 1 and the construction material 5. Become.

  Even when there is only one erection material 5, the erection material 5 penetrates the interior of the column 2 as in the case where the column 2 is an assembly column such as a lattice column as shown in FIGS. If it can be installed in a state, it is possible to directly connect the side surface of the column 2 and the installation material 5 without securing the stability of the vibration control device 6 supported by the installation material 5 without using the joining plate 8. It is possible to install the vibration control device 6 between the two. When the number of the erection material 5 is one, the erection material 5 needs to have a rigidity that does not cause bending in the erected state.

When a plurality of construction materials 5 are arranged (Claim 4 ), a fixture 9 is fixed at a position facing each part of the frame 1 of each construction material 5. By linking the connecting member 7 that connects all the fixtures 9 to each other (Claim 5 ), it is possible to obtain a state in which the joining plate 8 can be easily joined evenly to the entire building member 5. In this case, since the joining plate 8 is fixed to the connecting member 7 straddling all the fixtures 9, it is indirectly joined evenly to all the erected members 5, so that the axial direction acting on all the erected members 5 It is possible to prevent the forces from becoming unbalanced, equalize the axial force to be borne by all the erection materials 5, and equalize the amount of expansion / contraction due to the axial force of each erection material 5. When the erection material 5 is composed of a plurality of erection material components (string material) 51, the fixture 9 is fixed to each erection material component 51 as shown in FIG.

  Sections other than the fixed part of the construction material on the ground by laying a construction material that is not directly connected to the pillar in the opposite direction of the pillar, and fixing at least a part of the construction material to the ground without connecting to the structure Can always be kept parallel to the beam, so there is no need to install parts to isolate (isolate) the sections other than the anchoring part of the construction material from the vibration of the construction. It is possible to reduce the components for generating a damping force in the installed vibration control device.

  In addition, the sections other than the anchoring part of the construction material on the ground are constructed parallel to the beam of the construction frame, so that the direction of reaction force applied to the construction material from the vibration control device and the axial direction of the construction material are the same. Therefore, relative horizontal displacement occurs between the construction material and the frame, and when the damping device generates a damping force, the axial force that can be borne by the construction material can be effectively used as a reaction force. Use efficiency is high as a reaction force of the axial force generated by the construction material.

(A) is an elevation view showing a state of a joint part in which a damping device is horizontally installed between a construction material and a column made of PC steel, and (b) is a sectional view taken along line xx of (a). is there. It is the elevation which showed the relationship between the frame which has the pillar shown in FIG. 1, a construction material, and a damping device. FIG. 3 is an elevational view showing the relationship between the frame, the building material, and the vibration control device when the building material in FIG. 2 is replaced with a three-dimensional truss. This is an example of installation of a construction material when a construction material is installed over a span that spans multiple spans in the construction direction of the beam, and the construction material is connected to a reaction member arranged in the span direction intermediate part of the construction (A) is a case where the reaction force member arranged in the intermediate portion of the span direction of the frame is a column / beam frame, and (b) is a case where it is a brace. (A) is an elevation showing an example of connection between the reaction force member 10 and the construction material 5 when a column / beam frame reaction force member is installed at the end of the frame in the span direction, and (b) is an elevation view of the column. It is the elevation which showed the example of a connection of the reaction force member 10 at the time of installing a reaction force member, and the construction material 5. FIG. It is the elevation which showed the example at the time of arrange | positioning the reaction force member which consists of a column in the outer side of the column of the span direction intermediate part side among the columns of 1 span near the edge part of the span direction of a frame. (A), (b) is the elevation which showed the example at the time of arrange | positioning a reaction force member in the intermediate part and edge part of the span direction of a frame. It is the figure which modeled and showed the mode when it deform | transforms in the span direction (vibration) to the frame shown in FIG.

  1- (a) and (b) show a column 1 having columns 2 and 2 facing each other at a distance and a beam 3 installed between the columns 2 and 2 facing each other. 2 shows a state of a joint portion between a construction material 5 constructed in two opposing directions and any part of the construction 1 with a vibration control device 6 that generates a damping force at the time of relative displacement therebetween. Show. At least a part of the construction material 5 is fixed directly or indirectly to the ground 12 and receives a reaction force from the ground 12, so that the construction material 5 is connected to the construction 1 via the vibration control device 6. The original erected state is maintained without following the frame 1 at the time of vibration (deformation) of the first beam 3 in the erection direction. Frame 1 may be existing or newly installed.

  In FIG. 1, for example, as shown in FIGS. 4A and 4B, a plurality of columns 2 are arranged in the erection direction of the beam 3, and the truss beam 3 is erected between the adjacent columns 2 and 2. Although the joint part of the pillar 2 which is a part of the form frame 1 and the construction material 5 is shown, the frame 1 should just be provided with the beam 3 constructed between the pillars 2 and 2 and the pillars 2 and 2 The form of the pillar 2 and the beam 3 and the form of the frame 1 are not questioned.

  FIG. 1 also shows that the construction material 5 is a material that can bear only a tensile force, such as a PC steel material including a PC steel wire, and is arranged in parallel in at least one of the width direction and the height direction of the column 2. Although the example in the case of arrange | positioning and arrange | positioning the circumference | surroundings of the pillar 2 in the state which combined the several construction material 5 is shown, as shown in FIG. 3, the steel material which can bear compressive force as shown in FIG. 3, or In addition to the combination of steel materials, a material that can bear only the compression force may be used.

  1 and 3, in order to stably support the vibration control device 6 installed between the pillars 2, four construction materials 5 are combined in the width direction and the height direction of the pillars 2. Although it is arranged in parallel, the number of the construction materials 5 for supporting the vibration control device 6 is not necessarily plural, and one construction material 5 may support the vibration control device 6. The drawing shows an example in which the vibration control device 6 is an oil damper in which the piston rod extends and contracts in the axial direction with respect to the piston, but the vibration control device 6 moves relative to the construction material 5 in the axial direction. Any type and form can be used as long as a damping force is generated.

  When combining the four erection members 5, all the erection members 5 are arranged in the width direction and the height direction so as to sandwich the column 2 in the width direction, for example, on the outer peripheral side of the column 2 as shown in FIG. Are connected to each other by a connecting member 7 that connects all the erected members 5 at the same time, and straddles all the erected members 5. The drawing shows an example in which the connecting member 7 has a cross shape that connects the four erection members 5 in the diagonal direction when the four erection members 5 are viewed in the axial direction. In addition to this, the shape of the connecting material 7 is arbitrary, for example, the connecting material 7 is formed in a plate shape having an area covering the entire construction material 5.

  In the case of the example shown in FIG. 1 and the like, the connecting member 7 is integrated with one end of the vibration control device 6 in the axial direction, for example, the end of the piston rod, by making the plates in two directions intersect each other. Since the end plate 61 is stable and difficult to support, the damping device 6 is directly or indirectly straddled over the entire construction material 5 at the center of the connection material 7 when the construction material 5 is viewed in the axial direction. The joining plate 8 to be received is fixed, and one end plate 61 of the vibration control device 6 is fixed to the joining plate 8 with a bolt 62 or the like. The joining plate 8 may have a size that directly straddles the entire construction material 5, and in that case, the connecting material 7 is not necessarily required. The joining plate 8 is also fixed at a position facing the joining plate 8 on the construction material 5 side, such as the column 2 and the beam 3 that receive the other end (end plate 61) of the vibration control device 6. End plates 61, 61 integrated with the end portions of the piston and piston rod of the damping device 6 are joined to the joint plates 8, 8 by bolts 62 or the like.

  In order to connect the four erection materials 5 to each other by the linking material 7, the linking material 7 is fixed to the erection material 5 at a position facing each part of the frame 1 such as the column 2 of each erection material 5. A fixing member 9 is fixed, and a connecting member 7 that connects all the fixing members 9 to each other is installed between all the fixing members 9. The fixture 9 is joined to each erection material 5 in a fixed state by using, for example, a coupler or a sleeve so that the erection material 5 can receive a reaction force when the vibration control device 6 bears an axial force. However, the fixing method is not questioned.

  1 and 2 show an example in which the erection material 5 is a tension material such as a PC steel wire that can bear only a tensile force. In this case, even if the construction material 5 is installed with tension so as to maintain a horizontal state parallel to the construction direction of the beam 3, a compressive force is applied from the construction 1 (the vibration control device 6) when the construction 1 vibrates. Since it may be relaxed when it is received, the construction material 5 does not relax even when it receives a compressive force, so that it can maintain a state where the vibration control device 6 is supported. It is appropriate that this tension is applied to the construction material 5.

  FIG. 3 shows a case where the erection material 5 is a three-dimensional truss composed of a plurality of erection material components 51 that are chord materials capable of bearing a compressive force and an oblique member 52 laid between the erection material components 51. An installation example of the vibration control device 6 is shown. In the example shown here, four construction material components 51 are arranged in parallel in the width direction and the height direction of the pillar 2 and are adjacent to the construction material components 51 and 51 adjacent in the width direction in the height direction. A connecting member 8 for supporting the vibration control device 6 and the connecting member 8 are provided except that an oblique member 52 for connecting the two members to each other is installed between the installation members 51 and 51, and the installation member 5 constitutes a three-dimensional truss. It is the same as the example shown in FIG. 1 that the connecting member 7 for receiving and the fixture 9 for fixing the connecting member 7 to the construction member 5 are used.

  The vibration control device 6 is installed between the joining plate 8 on the frame 1 side and the joining plate 8 on the construction material 5 side in the horizontal direction, which is the vibration direction of the frame 1, and the joining plates 8, 8 at both ends. Fixed to. When the frame 1 vibrates and the pillar 2 in FIG. 1- (a) is deformed to the right side with respect to the construction material 5 that maintains the original construction state, the vibration control device 6 contracts to generate a damping force. When it is deformed to the left, it expands and generates a damping force.

  The fact that the erection material 5 maintains the original erection state even when the frame 1 vibrates is that the reaction force disposed on at least a part of the erection material 5 in the axial direction as shown in FIGS. 4- (a) and (b). This is made possible by connecting the construction material 5 to the member 10. The reaction force member 10 bears the tensile force and the like of the construction material 5 by being connected to the construction material 5 and transmits it to the ground 12.

  Since the reaction force member 10 bears a tensile force or a compression force acting on the erection material 5 or a tensile force and a compression force, at least the end of the erection material 5 on the reaction force member 10 side is pulled out to the reaction force member 10. It is joined in a restrained state, that is, in a state capable of resisting a tensile force or a compressive force. When a compressive force is transmitted from the construction material 5 to the reaction force member 10, the joining portion is joined in a state that can resist the compressive force. Although the joining method of the construction material 5 to the reaction force member 10 is arbitrary, for example, the construction material 5 is joined by embedment (fixing) in concrete or bolt joining according to the structure of the reaction force member 10.

  FIG. 4- (a) shows a case where the reaction force member 10 is a frame made of steel and reinforced concrete or the like and a frame and a beam, and (b) shows a plane truss with braces installed in a steel frame / beam frame, Alternatively, an example in the case of a three-dimensional truss is shown, but if the reaction force member 10 has the ability to transmit to the ground 12 while bearing the axial force from the erection material 5, the form and structure type of the reaction force member 10 are not questioned. I will not. 4 (a) and 4 (b), the ground anchor 11 is fixed to the leg of the reaction force member 10 in the ground in order to prevent the reaction force member 10 from lifting and slipping in the horizontal direction. Is connected.

  When the reaction member 10 is arranged at the intermediate portion in the span direction of the frame 1 (inside the frame 1) as shown in FIGS. 4- (a) and (b), the frame 1 is deformed as shown in FIG. When this occurs, a tensile force acts on the construction material 5 in a section on the deformation direction side (right side) of the frame 1 from the reaction force member 10 in FIG. 4, and a section located on the left side of the reaction force member 10 on the opposite side. Compressive force acts on In this relationship, when the reaction force member 10 is disposed in the intermediate portion in the span direction of the frame 1, the construction material 5 is given the ability to bear the tensile force and the compression force, and the reaction force member 10 is applied to the construction material 5. The acting tensile force and compressive force are alternately borne.

  When the reaction member 10 is arranged outside the span direction end of the frame 1 (outside the frame 1) as shown in FIGS. 5A and 5B, the frame 1 is included in the construction material 5. A tensile force is applied when the end portion is deformed away from the reaction force member 10, and the reaction force member 10 bears the tensile force at that time. When the frame 1 is deformed so as to approach the reaction force member 10, a compressive force acts on the erection material 5, but if the erection material 5 does not have an ability to bear the compressive force, the compressive force is not borne. When the construction material 5 has the ability to bear the compressive force, the reaction member 10 bears alternately the tensile force and the compression force, and when the construction material 5 does not have the ability to bear the compressive force, The force member 10 bears only the tensile force. In this relation, when the erection material 5 does not have the ability to bear the compressive force, the reaction force member 10 is disposed at both ends of the frame 1 in the span direction.

  4 (a) and 4 (b), the end of the construction material 5 opposite to the side where the reaction member 10 is installed (the end of the construction 1) is connected to the column 2 of the construction 1 and the like. An example of the case is shown. Of the section of the construction material 5 other than the part fixed to the ground 12 via the reaction force member 10, the part facing the horizontal direction of any part of the frame 1 is attached to the column 2 of the frame 1 or the like. In the drawing, the vibration control device 6 is interposed in all parts of the frame 1 that are opposed to the frame 1 other than the part fixed to the ground 12 in the horizontal direction. The frame 1 shown in FIGS. 4A and 4B has a symmetrical shape with respect to the installation location of the reaction force member 10.

  5A and 5B show connection examples of the reaction force member 10 and the construction material 5 when the reaction force member 10 is installed on the outer side of the construction frame 1 at the end in the span direction of the construction structure 1. 4A shows an example in which the reaction member 10 is a pillar / beam frame, and FIG. 4B shows an example in which the reaction member 10 is a pillar, as in the reaction member 10 shown in FIG. In FIG. 5A, a ground anchor 11 is connected to the leg portion of the reaction force member 10 to prevent lifting, and in FIG. 5B, the head of the reaction force member 10 is resisted to the tensile force of the construction material 5. The ground anchor 11 is connected.

  In the case of FIG. 5- (b), since the reaction force member 10 is a single column, for the purpose of preventing a fall when a tensile force is applied to the head of the reaction force member 10 (column) from the construction material 5, The ground anchor 11 is connected to the head of the reaction force member 10 and is installed on the opposite side of the installation material 5 with an inclination with respect to the vertical. In this relation, the reaction force member 10 shown in FIG. 5B resists the tensile force mainly acting on the construction material 5.

  FIG. 6 is a diagram showing an example in which the ground is formed by an inclined ground anchor 11 on the outer side in the span direction of the column 2 on the intermediate side in the span direction, which constitutes one span closer to the end in the span direction of the frame 1. An example in which a reaction force member 10 composed of a pillar fixed to 12 is arranged is shown. In this example, since the reaction force member 10 and the ground anchor 11 are accommodated in the frame 1 and do not protrude outside the frame 1, the reaction force member 10 can be installed in a limited site. .

  FIGS. 7A and 7B show an example in which the reaction force member 10 is disposed outside the intermediate portion and the end portion in the span direction of the frame 1. (A) When the reaction force member 10 of the column / beam frame is arranged at the intermediate portion in the span direction and the reaction force member 10 of the column is arranged at the end portion, (b) is inside the frame at the intermediate portion in the span direction. This is a case where the truss reaction force member 10 with braces installed is arranged and the column reaction force member 10 is arranged at the end.

1 …… Frame,
2 ... pillars, 3 ... beams, 4 ... girders,
5 …… Construction material, 51 …… Construction material component (string material), 52 …… Diagonal material,
6 ... Damping device, 61 ... End plate, 62 ... Bolt,
7 ... Connecting material, 8 ... Joint plate, 9 ... Fixing tool,
10 ... Reaction force member, 11 ... Ground anchor, 12 ... Ground.

Claims (6)

In a frame having pillars facing each other at a distance and a beam constructed between the opposed columns and joined to the columns, a construction material independent from the frame is constructed in a direction in which the columns face each other, and the axial direction at least a portion directly ground in, or is indirectly fixing, between the bridging member and the Frame, the axis of the erection member in the event of relative axial displacement of the bridging member between the Frame of A joint structure for a seismic control frame, characterized in that a seismic control device is interposed in which a relative displacement in the direction is axially deformed to generate a damping force. The erection member at both ends in the axial direction, or at least two positions including an intermediate portion, is fixed to the ground, while bear the axial force of the bridging member being connected to the reaction member for transmitting to the ground, The joint structure of a seismic control frame according to claim 1, wherein displacement is constrained . In a frame having pillars facing each other at a distance and a beam constructed between the opposed columns and joined to the columns, a construction material independent from the frame is constructed in a direction in which the columns face each other, and the axial direction at least a portion directly ground in, or is indirectly fixing, between the bridging member and the Frame, the axis of the erection member in the event of relative axial displacement of the bridging member between the Frame of There is a vibration control device that generates a damping force due to the relative displacement in the direction being axial deformation .
Sections other than the fixing portion of the erection material to the ground are laid in parallel to the erection direction of the beam of the frame,
The joint structure of a vibration control frame, wherein the vibration control device is installed between the column of the frame and the erection material.
The construction material is arranged in parallel in at least one of the width direction and the height direction of the column of the frame, and a joining plate is arranged directly or indirectly across all the plurality of construction materials. directly to the junction plate the bridging member, or is indirectly fixed, according to claim 1 to claim 3, wherein said vibration control device between said joining plate said Frames are bridged The joint structure of the seismic control frame described in any one of the above. A fixing tool is fixed at a position of each erection material facing the frame, a connecting material for connecting all the fixing tools to each other is installed between all the fixing tools, and the joining plate is fixed to the connecting material. The joint structure of a seismic control frame according to claim 4 . The joint structure of a vibration control frame according to any one of claims 1 to 5 , wherein a tension is previously introduced into the construction material.

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