JP6058471B2 - Equipment for repairing existing structures - Google Patents

Description

  The present invention relates to a repair device for an existing structure.

  Patent Document 1 discloses a technique related to a structure demolition method.

  Patent Document 2 and Patent Document 3 disclose techniques related to a demolition method for multi-layer buildings.

  Patent Literature 4 and Patent Literature 5 disclose a technique related to a method of separating the lower foundation of an existing building from the ground side and jacking up the existing building to a required height.

  Patent Document 6 discloses a technique related to a construction method for expanding a lower floor such as a first floor in an existing building by pushing up the upper floor.

  Here, if the entire number of pillars is cut to jack up or jack down the upper floor of an existing structure, the upper floor is simply placed on the lower floor, and the horizontal force due to earthquakes, strong winds, etc. It becomes a state where it cannot resist.

  Therefore, when jack-up or jack-down is performed, it is necessary to provide temporary members in the vicinity of the columns, which have strength that can withstand horizontal force and follow the jack-up or jack-down. In addition, it is necessary to replace a plurality of temporary members on the upper floor or the lower floor according to the progress of the construction.

  Therefore, there is room for improvement with respect to adjusting (enlarging or reducing) the distance between the upper floor and the lower floor in the existing structure.

Japanese Patent Laid-Open No. 02-024455 JP 2009-138378 A JP 2012-046968 A Japanese Patent Laid-Open No. 09-013696 Japanese Patent Application Laid-Open No. 09-078845 JP 2005-26469 A

  An object of the present invention is to provide a repair device for an existing structure that can stably adjust the interval between the upper floor portion and the lower floor portion in the existing structure in view of the above facts.

  The invention according to claim 1 includes an upper fixed body that is detachably fixed to the upper floor above the dividing point in the existing structure divided by the layer portion by an upper fixing means, and a lower side of the upper fixed body. The lower fixed body that is arranged and is detachably fixed by the lower fixing means to the lower floor below the dividing point, and the vertical distance between the upper fixed body and the lower fixed body is adjusted. Adjusting means, and first restricting means for restricting relative movement in the horizontal direction while allowing relative movement in the vertical direction between the upper fixed body and the lower fixed body.

  In the first aspect of the present invention, the first restricting means regulates the relative movement in the lateral direction between the upper fixed body and the lower fixed body even in a state where the structure is divided at the layer portion. Even if an external force is applied to the structure due to an earthquake or an earthquake, the lateral movement of the upper floor relative to the lower floor is restricted.

  And in the state where the lateral movement of the upper floor with respect to the lower floor is restricted by the first restricting means, the reaction force is taken by the lower fixing body fixed to the lower floor by the lower fixing means, and the upper layer The distance between the lower floor and the upper floor is adjusted by adjusting (enlarging or reducing) the vertical distance between the upper fixed body and the lower fixed body fixed to the floor with the upper fixing means. To do.

  In this way, by regulating the relative movement in the lateral direction between the upper fixed body and the lower fixed body with the first regulating means, the distance between the lower floor part and the upper floor part can be adjusted stably.

  The invention of claim 2 is characterized in that the first restricting means is provided on one of the upper fixed body and the lower fixed body, and on the other of the upper fixed body and the lower fixed body, And a concave portion engaged with the convex portion.

  In the invention according to claim 2, even when the structure is divided, the protrusions and the recesses engage with each other, so that even if an external force is applied to the structure due to a storm or an earthquake, the upper side fixing Force is transmitted from the body to the lower fixed body, and the lateral movement of the upper floor with respect to the lower floor is restricted.

  According to a third aspect of the present invention, energy absorbing means is provided in the lateral gap of the engaging portion between the convex portion and the concave portion constituting the first regulating means so as to be slidable in the vertical direction.

  In the third aspect of the present invention, the engagement error between the concave portion and the convex portion is absorbed by filling the gap of the engaging portion between the convex portion and the concave portion with the energy absorbing means. Further, the impact energy when the upper fixed body moves in the lateral direction due to a storm, an earthquake, or the like is alleviated.

  According to a fourth aspect of the present invention, there is provided a second restricting means for restricting relative movement in the vertical direction between the upper fixed body and the lower fixed body.

  In the invention according to claim 4, since the second regulating means regulates the relative movement in the vertical direction between the upper fixed body and the lower fixed body even in the state where the layer portion is divided, a storm, an earthquake, etc. Even if an external force is applied to the structure, it is possible to counter the overturning moment of the upper floor.

  ADVANTAGE OF THE INVENTION According to this invention, the space | interval of the upper floor part and lower floor part in the existing structure can be adjusted stably.

It is a perspective view which shows a repair apparatus typically. It is a perspective view which shows the principal part of a repair apparatus. It is sectional drawing of a repair apparatus, (A) is a figure of the state before jacking up, (B) is a figure of the state after jacking up. It is a perspective view at the time of seeing the principal part of a repair apparatus from the structure internal side. It is a front view which shows the damper provided in the engaging part of a recessed part and a convex part. It is a top view which shows typically the hydraulic jack provided in the circumference | surroundings of a repair apparatus, the holding | grip apparatus of a fixing device, a hydraulic jack, and a blowout part. It is a side view which shows a fixing device, (A) is a figure of the state which is not being fixed to the structure, (B) is a figure of the state fixed to the structure. It is a front view which shows a pull-out prevention rod. It is a perspective view which shows the outline | summary of the repair work which raises a floor height after removing the outer wall etc. of the existing structure to (A)-(D) in order. (A) is a front view schematically showing an existing structure before repair, and (B) is a front view schematically showing the repair structure after repair (after renewal). It is a perspective view which shows the hydraulic jack installed in the vicinity of the steel pillar of the circumference | surroundings of a blow-off part, (A) is a figure of the state before jacking up, (B) is a figure of the state after jacking up. . It is a perspective view which shows a cutting device. (A) is sectional drawing which shows typically the hierarchical part of the existing structure before raising the floor height, (B) shows typically the hierarchical part of the repair structure after raising the floor height. It is sectional drawing. (A) is a cross-sectional view when the repaired structure after raising the floor height is used as a server room, and (B) is a cross-sectional view when a medical device is installed. (A) is a graph showing the relationship between the design ground motion and long-period ground motion at the time of design, the seismic wave period and the magnitude of the shaking in the current design method, and (B) explanation for explaining the reduction of the seismic response by the seismic control device. FIG. It is a front view which shows an example of a damping device. It is a horizontal sectional view for explaining a double void. It is explanatory drawing explaining the air conditioning by a double void. (A) is a horizontal sectional view before replacing the air conditioner, and (B) is a horizontal sectional view after replacing the air conditioner. It is process drawing which shows the process of updating all the air-conditioning equipment in order from (A) to (J). It is process drawing which shows the process of partially updating an air-conditioning apparatus in order from (A) to (J).

<Renovation equipment>
A repair device according to an embodiment of the present invention will be described. The vertical direction is indicated by an arrow Z (Z direction), and the two orthogonal directions in the horizontal direction are indicated by an arrow X (X direction) and an arrow Y (Y direction).

  As shown in FIGS. 1 to 4, the repair device 100 includes an upper fixed body 110 and a lower fixed body 120. Further, as shown in FIG. 1, the upper fixed body 110 and the lower fixed body 120 are each composed of four wall portions 112 and 122, and as shown in FIG. 6, a plane is formed so as to surround the structure 10. It is configured as a rectangular ring when viewed. In addition, although the external shape in planar view of the repair apparatus 100 of this embodiment is a rectangular shape similarly to the external shape of the structure 10, it is not limited to this. What is necessary is just to respond | correspond suitably according to the external shape of a structure. For example, if the outer shape of the structure in plan view is a circular shape, the repair device has a circular ring shape corresponding to this.

  As shown in FIGS. 2 to 4, the upper fixed body 110 and the lower fixed body 120 are configured by joining a plurality of steel materials 102 and 104. In the present embodiment, the upper fixed body 110 and the lower fixed body 120 have a structure in which a steel material 104 is joined as an X-shaped brace to a steel frame main body formed of a steel material 102 made of H-shaped steel. Yes.

  In FIGS. 1 and 6, in order to make it easy to understand the outer shapes of the upper fixed body 110 and the lower fixed body 120, they are schematically illustrated by planes. Thus, it is comprised with the some steel materials 102 and 104. As shown in FIG.

  As shown in FIGS. 1 to 4, the lower end portion 114 of the upper fixed body 110 and the upper end portion 124 of the lower fixed body 120 are connected by a hydraulic jack 150 that expands and contracts in the vertical direction. As shown in FIG. 6, a plurality of hydraulic jacks 150 are installed at predetermined intervals on each of the walls 112 and 114 (see FIG. 1). In addition, since the repair apparatus 100 is typically illustrated in FIG. 1, the number of installed hydraulic jacks 150 is smaller than the actual number.

  As shown in FIG. 3, the distance between the upper fixed body 110 and the lower fixed body 120 is adjusted (enlarged or reduced) by the expansion and contraction of the hydraulic jack 150.

  As shown in FIG. 1, a concave portion 116 and a convex portion 118 are provided at the lower end portion 114 of the upper fixed body 110 (see also FIG. 2). On the other hand, the upper end portion 124 of the lower fixed body 120 is provided with a convex portion 126 that engages with the concave portion 116 and a concave portion 128 that engages with the convex portion 118. The concave portions 116 and the convex portions 118 of the upper fixed body 110 and the convex portions 126 and the concave portions 128 of the lower fixed body 120 are also provided in the wall portions 112 and 122 that are hidden in FIG. That is, the concave portion 116 and the convex portion 118 of the upper fixed body 110 and the convex portion 126 and the concave portion 128 of the lower fixed body 120 are provided on the four wall portions 112 and 122.

  By engaging the concave portions 116 and 128 and the convex portions 118 and 126 in this manner, the upper fixed body 110 and the lower fixed body 120 allow relative movement in the vertical direction while allowing relative movement in the vertical direction. Being regulated. Further, since the concave portions 116 and 128 and the convex portions 118 and 126 are provided on the four wall portions 112 and 122, movement is restricted in both the X direction and the Y direction. That is, it has a structure that can resist horizontal force in both the X direction and the Y direction.

  Note that the vertical engagement allowance between the concave portions 116 and 128 and the convex portions 118 and 126 is such that the engagement is maintained even when the hydraulic jack 150 extends to the maximum.

  In the present embodiment, as shown in FIG. 5, a damper 160 as an example of an energy absorbing means is provided in the lateral gap 117 between the concave portion 116 and the convex portion 126 so as to be slidable in the vertical direction. .

  Specifically, dampers 160 that extend and contract in the lateral direction are fixed to the left and right side surfaces 126A of the convex portion 126, respectively. Further, the tip 162 of the damper 160 is slidable with respect to the left and right side surfaces 116 </ b> A of the recess 116. Although illustration is omitted, a configuration in which a damper 160 that expands and contracts in the lateral direction is fixed to the side surface 116 </ b> A of the recess 116, and the tip end portion 162 can slide with respect to the side surface of the projection 126. Although not shown, the damper 160 is also provided in the lateral clearance of the engaging portion between the convex portion 118 (see FIG. 1) of the upper fixed body 110 and the concave portion 128 (see FIG. 1) of the lower fixed body 120. It is provided similarly.

  As shown in FIGS. 3, 4, 6, and 7, the upper fixing body 110 and the lower fixing body 120 are provided with a fixing device 180. As shown in FIG. 7, the fixing device 180 includes a slide jack 182 that expands and contracts in the horizontal direction toward the structure 10, and a gripping device 184 provided at the tip of the slide jack 182. . The gripping device 184 is configured to grip the steel column 12 and the steel beam 14 constituting the structure of the structure 10 as will be described later.

  In the present embodiment. As shown in FIG. 8, a pull-out prevention rod 190 is connected to the lower end portion 114 of the upper fixed body 110 and the upper end portion 124 of the lower fixed body 120, and is predetermined with respect to the lower fixed body 120 of the upper fixed body 110. The movement in the vertical direction larger than the specified range is restricted.

  The pull-out prevention rod 190 has a structure in which nuts 194 are attached to both end portions 192A of the rod 192 that penetrates the lower end portion 114 of the upper fixed body 110 and the upper end portion 124 of the lower fixed body 120. And the space | interval of the upper side fixing body 110 and the lower side fixing body 120 is not opened between the upper and lower nuts 194 (L in the figure) or more.

<Renovation work>
Next, renovation work for existing structures will be described. The existing structure 10A (see FIG. 9A and FIG. 10A) before the repair (before raising the floor height) is used, and the repair structure 10B (after the floor height raising) after the repair (after FIG. 9D). ) And FIG. 10B). Moreover, when not distinguishing both, it is set as the structure 10.

(Overview)
First, the outline of renovation work for existing structures will be described.

  As shown in FIGS. 9A and 10A, the existing structure 10A is a high-rise building composed of a plurality of hierarchical portions 20 (see FIG. 13). Moreover, as shown in FIG. 6, the blowout part 11 which blows up and down is provided in the inside of the existing structure 10A.

  First, as shown in FIG. 9 (A) and FIG. 9 (B), the outer wall and the like of this existing structure 10A are dismantled and removed, and the structure, that is, as shown in FIGS. The steel column 12, the steel beam 14, the slab 16, etc. are used. Any technique may be used to dismantle and remove the outer wall and the like. You may use the dismantling removal operation | work using the technique of a HAT DOWN construction method (trademark).

  Next, as shown in FIG. 9C and FIG. 9D, a plurality of layer portions 20 of the structure 10 using the repair device 100 of the present embodiment (see the layers 58A and 58B shown in FIG. 10A). Raise the floor height.

  In addition, as shown to FIG. 13 (A), before raising the floor height is made into the hierarchy part 20A, and as shown in FIG. 13 (B), after raising the floor height is made into the hierarchy part 20B, both are not distinguished. The hierarchy unit 20 is assumed. Moreover, as shown in FIGS. 1-3, the upper side of the hierarchy part 20 which performs the raising work is made into the upper floor part 25, and the lower side of the hierarchy part 20 to raise is made into the lower layer floor part 27. As shown in FIG.

  Then, as will be described later, the floor of the layered portion 20B with the raised floor height shown in FIG. 13B is a double floor 200, and the gap between the steel beam 14 and the ceiling 18 is a gap HA (FIG. 13A). ), The gap HB is expanded to enable further effective use as various pipes and air-conditioned spaces, thereby creating added value.

  In the present embodiment, the floor height of each floor of the upper floor 58A from the fourth floor of the existing structure 10A shown in FIG. 10A is raised (the floor 58B is provided in the repair structure 10B).

(Raise the floor height)
Next, while explaining the floor height raising work (construction method) using the refurbishing apparatus 100, the operation and effect will be explained at the same time.

  As shown in FIG. 1 to FIG. 4, FIG. 6, and FIG. 9C, the repair device 100 is disposed outside the structure 10 that is only a structure.

  In the present embodiment, as shown in FIG. 3, the repair device 100 is suspended by a wire 50 attached to a hoisting device (winch) (not shown) provided on a higher floor.

  And as shown to FIG. 3 (A), a hoisting device (winch) is operated, and the floor height is raised between the upper side fixing body 110 and the lower side fixing body 120 (it performs the raising work). The refurbishment apparatus 100 is installed so that 20 is located.

  Next, as shown in FIG. 7, the upper layer of the layer portion 20 that extends the slide jack 182 of the fixing device 180 of the upper fixed body 110 and raises the floor height as shown in FIGS. 3, 4, 6, and 7. The steel column 12 and the steel beam 14 of the floor portion 25 are gripped by the gripping device 184, and the upper fixed body 110 is fixed to the upper floor portion 25.

  Similarly, the slide jack 182 of the fixing device 180 of the lower fixed body 110 is extended as shown in FIG. 7, and the floor portion 20 is raised as shown in FIGS. 3, 4, 6, and 7. The steel column 12 and the steel beam 14 of the upper floor 25 are gripped by the gripping device 184 and the lower fixing body 110 is fixed to the upper floor 27.

  Further, at this time, as shown in FIG. 1 and the like, the concave portion 116 and the convex portion 118 of the upper fixed body 110 and the convex portion 126 and the concave portion 128 of the lower fixed body 120 are engaged.

  In the present embodiment, as shown in FIGS. 6 and 11, the hydraulic jack 800 is also disposed in the vicinity of the steel column 13 around the blowout portion 11.

  And the hierarchy part 20 which raises the floor height is divided. Specifically, the steel column 12 (see FIG. 3 (A), the cutting part (parting part) E in FIG. 4) and the steel column 13 (see the cutting part (parting part) E in FIG. 11 (A)) and the figure. Cut stairs etc. not shown.

  In addition, what kind of method may be sufficient as the cutting method of the steel pillars 12 and 13 grade | etc.,. In this embodiment, the steel columns 12 and 13 are cut by a cutting device 500 using a band saw 502 used for steel frame processing, as shown in FIG.

  In this manner, even when the steel pillars 12 and 13 of the layer portion 20 of the structure 10 are cut and the layer portion 20 is divided, the concave portions 116 and 128 and the convex portions 118 and 126 are engaged. Therefore, the relative movement in the lateral direction between the upper fixed body 110 fixed to the upper floor 25 and the lower fixed body 120 fixed to the lower floor 27 is restricted. Therefore, even if an external force is applied to the structure 10 due to a storm, an earthquake, or the like in a state where the layer portion 20 of the structure 10 is divided, the upper fixed body 110 (upper floor portion 25) to the lower fixed body 120 (lower layer) Force is transmitted to the floor 27), and the lateral movement of the upper floor 25 relative to the lower floor 27 is restricted.

  In the present embodiment, the relative movement in the lateral direction is allowed while allowing the upper fixed body 110 and the lower fixed body 120 to move in the vertical direction by the engagement of the concave parts 116 and 128 and the convex parts 118 and 126. Although it is regulated, it is not limited to this. The movement in the lateral direction may be restricted while allowing the relative movement in the vertical direction with a configuration other than the engagement between the concave portions 116 and 128 and the convex portions 118 and 126. What is necessary is just a structure which an engagement part (or latching | locking part) and a to-be-engaged part (or to-be-latched part) engage (or latch).

  For example, a vertically extending rod-shaped portion provided on one of the upper fixed body 110 and the lower fixed body 120 and the rod-shaped portion provided on the other of the upper fixed body 110 and the lower fixed body 120 are inserted. And a restricting means (first restricting means) constituted by a hole. Furthermore, the relative movement in the lateral direction may be restricted while allowing the relative movement in the vertical direction between the upper fixed body 110 and the lower fixed body 120 by the restriction means (first restriction means) of any other configuration. .

  Further, in the present embodiment, as shown in FIG. 5, a damper 160 is slidable in the vertical direction in the lateral gap 117 of the engagement portion between the concave portion 116 (128) and the convex portion (118) 126. Is provided. Thus, by filling the gap 117 in the engagement portion between the concave portion 116 (128) and the convex portion (118) 126 with the damper 160, the engagement error between the concave portion 116 (128) and the convex portion (118) 126 is reduced. Absorbed and lateral movement (rattle) between the upper fixed body 110 and the lower fixed body 120 is prevented. Further, the impact energy when the upper fixed body 110 (upper floor portion 25) moves in the lateral direction with respect to the lower fixed body 120 (lower floor portion 27) is reduced by an external force such as a storm or an earthquake.

  In addition, in this embodiment, although the damper 160 was provided as an example of an energy absorption means, it is not limited to this. For example, an elastic member such as rubber or a spring may be provided so as to be slidable in the vertical direction. Alternatively, a sliding bearing may be provided so as to be slidable in the vertical direction. Moreover, the energy absorption means may not be provided.

  Further, when an external force is applied to the structure 20 due to a storm, an earthquake, or the like, and a falling moment is generated in the upper floor portion 25 and a pulling force acts on the hydraulic jack 150 of the repair device 100, the tensile strength of the hydraulic jack 150 is increased. To counter the overturning moment of the upper floor 25.

  Furthermore, in the present embodiment, as shown in FIG. 8, the pull-out prevention rod 190 prevents the space between the upper fixed body 110 and the lower fixed body 120 from opening between the nuts 194 (L in the figure) or more. It has become. Therefore, even if a stress (pulling force) exceeding the tensile strength of the hydraulic jack 150 is applied, the overturning moment of the upper floor portion 25 can be countered.

  In the present embodiment, the pull-out prevention rod 190 restricts the vertical movement of the upper fixed body 110 and the lower fixed body 120, but the present invention is not limited to this. The movement of the upper fixed body 110 and the lower fixed body 120 in the vertical direction may be restricted by restriction means (second restriction means) other than the pull-out prevention rod 190. For example, a method using a linear member such as a PC steel wire instead of the rod 192 may be used. Further, when it is clear that a stress larger than the tensile strength of the hydraulic jack 150 does not act, it is not necessary to provide a restricting means (second restricting means) such as the pull-out prevention rod 190.

  Next, as shown in FIG. 1 and FIG. 3, the lower side fixed to the lower floor 27 as shown in FIG. 3 in a state where the lateral movement of the upper floor 25 with respect to the lower floor 27 is restricted. The reaction force is taken by the fixed body 120, and the hydraulic jack 150 is extended to increase the vertical distance between the upper fixed body 110 and the lower fixed body 120 fixed to the upper floor 25 (jacking up). Thereby, the upper floor part 25 is lifted with respect to the lower floor part 27, and the floor height of the hierarchy part 20 is raised (see also FIG. 13).

  In this embodiment, the vertical interval between the upper fixed body 110 and the lower fixed body 120 (uplift of the upper floor portion 25 with respect to the lower floor portion 27) is performed by the hydraulic jack 150. It is not limited. It may be performed by other than the hydraulic jack 150. For example, it may be a mechanical jack or an air jack. Alternatively, a known device or technique other than a jack may be used.

  Here, in this embodiment, as shown in FIGS. 6 and 11, the hydraulic jack 800 in the vicinity of the steel column 13 around the blow-out portion 11 is also extended, and the upper floor portion 25 using the lower floor portion 27 as a reaction force receiver. To raise the level part 20.

  Note that this is because the upper floor 25 is large, and the hydraulic jack 150 (see FIG. 6) of the repair device 100 alone cannot provide sufficient force to lift the upper floor 25 or the center cannot be lifted. This is because the balance may be poor. Accordingly, when the repair device 100 alone can provide a sufficient force for lifting the upper floor 25 and there is no problem with the balance, these hydraulic jacks 800 are not necessary.

  As shown in FIG. 3 (B) and FIG. 11 (B), a connecting member (steel frame) 19 is inserted and joined to a cutting location (dividing location) E of the steel columns 12 and 13. Moreover, a connecting member is also inserted and joined to the staircase and other divided portions.

  After the joining, as shown in FIG. 3, the gripping device 184 of the fixing device 180 of the upper fixed body 110 and the lower fixed body 120 is released, and the slide jack 182 is contracted (see FIG. 3A). Further, the hydraulic jack 150 is contracted to narrow the distance between the upper fixed body 110 and the lower fixed body 120.

  And by winding up the wire 50 with a hoisting device (winch) (not shown) installed on the higher floor, the repair device 100 is lifted and then installed at a position corresponding to the layer portion 20 for raising the floor height. . The slide jack 182 of the fixing device 180 of the upper fixing body 110 and the lower fixing body 120 is extended, the steel column 12 and the steel beam 14 are gripped by the gripping device 184, and the upper fixing body 110 is moved to the upper floor 25. The lower fixed body 120 is fixed to the lower floor portion 27, respectively. In this way, the repair device 100 is replaced.

  Thus, the hierarchy part 20 in the structure 10 is divided into the upper floor part 25 and the lower floor part 27, and the upper fixed body 110 (upper floor part) with the lower fixed body 120 (lower floor part 27) as a reaction force receiver. 25) is raised to raise the layer portion 20 and to connect the divided portions with connecting members, and the floor height of the plurality of layer portions 20 is raised.

  In this embodiment, the refurbishment of the refurbishing apparatus 100 uses the hoisting apparatus and the wire 50, but is not limited to this. The repair device 100 may be rearranged by any method.

  For example, a hydraulic jack 150 may be used. When the hydraulic jack 150 is used, the reordering is specifically performed as follows.

  First, in a state where the lower fixing body 120 is fixed to the lower floor 27 by the fixing device 180, the upper fixing body 110 is released from the upper floor 25 by the fixing device 180, and the hydraulic jack 150 is extended to be lowered. The upper fixed body 110 is lifted using the side fixed body 120 as a reaction force receiver, and the side fixed body 110 is moved upward.

  Next, the upper fixing body 110 is fixed to the upper floor portion 25 by the fixing device 180, the lower floor portion 27 is fixed by the fixing device 180 of the lower fixing body 120, the hydraulic jack 150 is contracted, and the upper fixing portion is fixed. The lower fixed body 120 is lifted by using the body 110 as a reaction force receiver, and the lower fixed body 120 is moved upward. Then, the lower fixed body 120 is fixed to the lower floor portion 27 by the fixing device 180.

  Instead of the hydraulic jack 150 used for raising, a long stroke jack may be separately installed and used.

  Moreover, in this embodiment, as shown in FIG.6 and FIG.11, the hydraulic jack 800 is also arrange | positioned in the vicinity of the steel column 13 around the blowout part 11. FIG. These hydraulic jacks 800 are individually sorted.

  Here, in the present embodiment, a plurality of hydraulic jacks 800 are provided in the vicinity of the steel column 13 around the blowout part 11, in addition to the repair device 100, but the present invention is not limited to this.

  Although illustration is omitted, a repair device to which the present invention is applied may also be installed inside the blowout portion 11. The refurbishing apparatus installed inside the blowout part 11 has the same configuration as that of the refurbishing apparatus 100 of the present embodiment, and has a structure having an upper fixed body and a lower fixed body. However, in the fixing device of the repair device provided inside the blowout part 11, the slide jack expands and contracts from the inside toward the outside, and grips the steel column 13 around the blowout part 11. Note that, depending on the size and structure of the structure 10, the floor height may be raised using only the repair device disposed inside.

  Thus, the repair device 100 to which the present invention is applied includes the upper fixed body 110 and the lower fixed body 120 that are firmly fixed to structures such as the steel columns 12 and 13 and the steel beam 14 of the structure 10. Since the concave portions 116 and 128 and the convex portions 118 and 126 engage with each other, the horizontal force can be borne, so that it is not necessary to separately attach and temporarily replace the temporary member for bearing the horizontal force on the structure 10 ( (See FIG. 1 etc.) Therefore, for example, processes such as structural body reinforcement, attachment and removal of temporary members, and replacement labor can be reduced.

  Further, the upper fixed body 110 and the lower fixed body 120 constituting the refurbishing apparatus 100 are configured in a rectangular ring shape in a plan view so as to surround the periphery of the structure 10 and have a configuration in which a horizontal reaction force mechanism is incorporated. (See FIG. 6 etc.). Therefore, since it can be attached to the structure 10 without using bolts, adhesives, welding, or the like, it can be easily rearranged even if the construction location changes.

  In the present embodiment, as shown in FIG. 9, the renovation apparatus 100 raises the floor height while ascending from the bottom to the top, but is not limited thereto. The renovation apparatus 100 may raise the floor height while descending from the top to the bottom.

  Moreover, the upper fixed body 110 and the lower fixed body 120 of the refurbishing apparatus 100 can also be used as a scaffold when performing various operations.

  In this embodiment, as shown in FIG. 9, the outer wall of the existing structure 10A is disassembled and removed to form a structure (steel column 12, steel beam 14, slab 16, etc.), and then the floor height is raised. However, it is not limited to this. Using the upper fixed body 110 and the lower fixed body 120 of the repair device 100 as scaffolding, the repair device 100 is lifted from the bottom to the top (or descended from the top to the bottom) while disassembling the outer wall of the existing structure 10A. The floor height may be raised.

<Details of added value creation>
Next, while explaining the creation of added value of the modified structure 10B (see FIG. 10B) with the raised floor height, the operation and effect will be described at the same time. Note that, as shown in FIG. 13A, the floor height in the layer portion 20A before raising is the floor height KA, the ceiling height is the ceiling height TA, and the gap between the steel beam 14 and the ceiling 18 (under the beam). Is the gap HA. Similarly, as shown in FIG. 13 (B), the floor height in the layered portion 20B after raising is the floor height KB, the ceiling height is the ceiling height TB, and the gap (under the beam) between the steel beam 14 and the ceiling 18 is defined. The gap is HB.

(The entire)
As can be seen by comparing FIG. 13A and FIG. 13B, the floor height increases from the floor height KA to the floor height KB, so that the ceiling height increases from the ceiling height TA to the ceiling height TB. As a result, comfort and liberation are improved.

  Further, the floor 20B is raised from the floor height KA to the floor height KB, so that the double floor 200 can be formed while maintaining the ceiling height TA or increasing the ceiling height TB. And by using the double floor 200, it becomes possible to use the under floor for air conditioning, IT equipment wiring, etc., and an added value is created. Further, as in the server room 310 shown in FIG. 14A, an OA floor 202 in which a large underfloor is secured can be provided.

  Further, as shown in FIGS. 13A and 13B, the floor 20B is raised from the floor height KA to the floor height KB, so that the ceiling height TA is maintained or widened with the ceiling height TB. The gap (below the beam) between the steel beam 14 and the ceiling 18 is expanded from the gap HA to the gap HB, enabling further effective use as various pipes and air-conditioned spaces, and creating added value.

  If it demonstrates with a specific example, as shown with the arrow GA and the arrow GB, the installation piping route and the air-conditioning route from the installation core 302 to the tenant area 300 can be ensured easily. Further, as indicated by arrows GC and GD, a space for taking in outside air from the outer wall 15 can be newly secured. In addition, it is possible to introduce a high-addition air conditioning facility that is not accompanied by securing the air-conditioned space in this way.

  Therefore, ventilation performance is improved, and as a result, it is possible to easily cope with mass ventilation, high additional air conditioning, high sensible heat, and the like. Specifically, the high-load air conditioning and high sensible heat of the server room 310 shown in FIG. 14A, although not shown, mass ventilation and high-load air conditioning in a large number of rooms such as a call center and a programming room, or high heat for kitchen use. It is possible to easily deal with fields and large air volumes, and create added value.

  Further, as shown in FIG. 14B, a tall large device such as the medical device 312 can be installed, and added value is created.

  In this way, by raising the floor height of the layered portion 20, the tenant attracting power is improved and the conformance width to the tenant request is improved, and added value is created.

  Moreover, compared with the case where the existing structure 10A is dismantled and a new structure having a high floor height is newly constructed, a large-scale construction is not required. That is, compared with the case where the existing structure 10A is dismantled and newly constructed, it can be reconstructed into a repaired structure 10B having a high floor height in a short construction period and at a low cost.

  Furthermore, in order to reuse the structure of the existing structure 10A (steel frames 12, 13 and steel beams 14, steel frames, slabs 16, beams, walls, stairs, etc.), the existing structure 10A is disassembled and newly constructed. Compared to cases, both waste and production materials can be controlled, contributing to a reduction in environmental impact.

  Further, as shown in FIG. 10, in the repair structure 10B of the present embodiment, by removing the beams, slabs, and the like of the lower layer 60A before the refurbishment, a three-layer structure is formed, and a blown floor 60B is newly provided. . Furthermore, an upper floor 62B having three layers is provided in the upper layer. Further, the lower atrium 60B is used as an office lobby or a hall, and the upper atrium 62B is used as a hotel lobby or an apartment lobby, thereby creating added value.

  Further, in the modified structure 10B of the present embodiment, an intermediate seismic isolation layer 66 in which a seismic isolation device 68 is installed is provided on the upper level floor 62B, and the column division is changed on the intermediate seismic isolation layer 66. An expansion layer 64B is newly established. In addition, the new installation of the expansion layer 64B is for increasing the part for which the floor area decreased by providing the ventilated floor 60B.

  Further, by making the repaired structure 10B an intermediate seismic isolation structure in this way, it is possible to efficiently provide a seismic control effect in cooperation with a later-described seismic control device 700 (see FIG. 16) for the entire repaired structure 10B. It can be demonstrated.

(Seismic resistance)
In the repair structure 10B, the stress acting on the columns and beams increases due to the raised floor height. In addition, the remodeled structure 10 </ b> B that is super high-rise increases the fluctuations caused by strong winds such as seasonal winds and typhoons.

  Furthermore, as shown in FIG. 15 (A), the design seismic motion at the time of design in the existing structure 10A before the super-high rise before the renovation is designed with a seismic motion with a small long-period component (a period of about 5 seconds to 8). Has been. Moreover, in the case of the existing structure 10A constructed in an era older than the current building standard, a design considering long-period ground motion has not been required.

  Therefore, along with the renovation, performance verification by seismic design and structural analysis including long-period correspondence under stricter analysis conditions than before in accordance with the current new design method, based on this, as shown in FIG. 16 as an example, The column beam frame 70 in the repair structure 10 </ b> B is provided with a vibration control device 700 including a V-shaped brace 702 and an oil damper 704.

  In the present embodiment, the vibration control device 700 having the oil damper 704 is provided to improve the earthquake resistance. However, the present invention is not limited to this. An existing vibration control device (vibration reducing means) having a rotary friction damper, a multistage friction surface damper, a BB damper, or the like can be used.

  In this way, the repaired structure 10B after the repair, in which the floor height of the plurality of layer portions 20 is raised and super-high, is made longer than the existing structure 10A before the repair, and the long-period vibration (cycle 5 seconds). About 8) (see FIG. 15A). However, since the damping damper 700 for reducing long-period vibration is provided, the earthquake resistance is improved as compared with the case where the damping damper 700 is not provided.

  Furthermore, in the existing structure 10B constructed according to the old building standards, the design considering long-period vibration was not required, but the current seismic design including long-period vibration support under stricter analysis conditions than before due to the renovation Since earthquake resistance measures are taken according to the method, the earthquake resistance is further improved.

  Therefore, as shown in FIG. 15 (B), in the repaired structure 10B after repair, the floor height is raised and the earthquake resistance is higher than the existing structure 10A before repair. Has improved.

(Double void)
As shown in FIGS. 17 and 18, the modified structure 10 </ b> B is provided with an eco-void (first blowout part) 600 and a core void (second blow-off part) 602 that are blown up and down adjacent to each other.

  Then, ventilation is performed with an eco-void 600 as indicated by an arrow J1 in FIG. 18, and air conditioning is performed by introducing the equipment of the air-conditioning equipment 604 into the core void 602 as indicated by an arrow J2, thereby comparing with the existing structure 10A. Energy saving is achieved.

  In the modified structure 10B of the present embodiment, by increasing the speed of the elevator, the number of elevators is reduced as compared with the existing structure 10A, and the blowouts from which the elevators have been removed are replaced with the ecovoids (first ventilating portions) 600 and the core voids This was used as the second blowout part) 602.

  Moreover, when the eco void (first blowout part) 600 and the core void (second blowout part) 602 are disposed adjacent to each other as in the present embodiment, it can be easily replaced while the air conditioner 604 is in the future. can do. Specifically, the exchange is performed while the air conditioner 604 is present as follows.

[Full update]
First, a case where the old air conditioner 604 is fully updated to a new high performance air conditioner 605 will be described.

  As shown in FIGS. 20A to 20J, the old air conditioner 604 is removed from the core void 602 and carried out, and at the same time, a new high performance air conditioner 605 is carried into the eco void 600 and installed. As shown in FIG. 19A and FIG. 19B, the air-conditioning device 604 installed in the core void (second blow-off portion) 602 is removed, and a new high-performance air-conditioning device 605 is added to the eco-void (first blow-off portion) 600. In other words, the complete replacement of the old air conditioner 604 with the new high performance air conditioner 605 is completed.

  Further, as shown in FIGS. 20J and 19B, further energy saving can be achieved by ventilating with the core void 602 and air-conditioning with the new high-performance air-conditioning equipment 605 installed in the eco-void 600.

[Partial update]
Next, a case where a part of the air conditioner 604 is partially updated (changed) to another air conditioner 607 will be described.

As shown in FIGS. 21A to 21D, another air conditioner 607 is carried in from the eco-void 600 and temporarily placed on the floor below the installation floor.
As shown in FIGS. 21E to 21G, the air conditioner 604 to be removed is moved to the eco void 600 and carried out of the eco void 600.
As shown in FIGS. 21H to 21J, another air conditioner 607 is moved to the installation floor and installed in the core void 602.

  In this partial update (change), air conditioning is performed using a standard air conditioner 604 used as a normal office until now, but the server room 310 (FIG. 4 (A)) Since the usage (tenant) is changed to a room for a number of people or a kitchen, etc., it is used when a high-performance or special air conditioner 607 corresponding to the usage is changed. That is, the flexible air-conditioning capability according to the tenant is improved.

<Others>
The present invention is not limited to the above embodiment.

  For example, although the repair apparatus 100 was used for raising the floor height of the hierarchy part 20, it is not limited to this. It can also be used for other applications. For example, it can be used for an extension that increases the number of layers. It can also be applied to jackdown during dismantling. In this way, the repair device 100 can also be used for all or part of the structure.

  Further, the floor height of the layer portion 20 may be increased without using the repair device 100. For example, similarly to the method described with reference to FIG. 11, the hydraulic jack 800 is arranged in the vicinity of the steel column 12 in the outer peripheral portion, the upper floor 25 is lifted using the lower floor 27 as a reaction force receiver, and the layer 20 is You may raise.

  Furthermore, it cannot be overemphasized that it can implement with a various aspect in the range which does not deviate from the summary of this invention.

DESCRIPTION OF SYMBOLS 10 Structure 10A Existing structure 10B Repair structure 20 Hierarchy part 25 Upper floor part 27 Lower floor part 100 Repair apparatus 110 Upper fixed body 116 Recessed part (an example of 1st control means)
118 convex portion (an example of first regulating means)
120 Lower fixed body 126 Convex part (an example of first regulating means)
128 recess (an example of first regulating means)
150 Hydraulic jack (an example of adjusting means)
160 Damper (an example of energy absorbing means)
180 fixing device (an example of an upper fixing means, an example of a lower fixing means)
190 Pull-out prevention rod (an example of second regulating means)
200 Double floor 600 Eco-void (an example of the first vent)
602 Core void (an example of the second blow-out part)
700 Damping device (an example of vibration reducing means)

Claims (4)

An upper fixed body that is detachably fixed by an upper fixing means to an upper floor part above the dividing point in the existing structure divided at the hierarchy part,
A lower fixed body that is disposed on the lower side of the upper fixed body and is detachably fixed by a lower fixing means to a lower floor below the dividing portion; and
An adjusting means for adjusting a vertical distance between the upper fixed body and the lower fixed body;
First restricting means for restricting relative movement in the lateral direction while allowing relative movement in the vertical direction between the upper fixed body and the lower fixed body;
Equipment for repairing existing structures. The first regulating means is
A convex portion provided on one of the upper fixed body and the lower fixed body;
A recess provided on the other of the upper fixed body and the lower fixed body and engaging the convex portion;
Having
The repair apparatus of the existing structure of Claim 1. Energy absorbing means is provided in the lateral gap of the engaging portion between the convex portion and the concave portion constituting the first regulating means so as to be slidable in the vertical direction.
The repair apparatus of the existing structure of Claim 2. Comprising a second restricting means for restricting relative movement in the vertical direction between the upper fixed body and the lower fixed body;
The repair device of the existing structure of any one of Claims 1-3.

Images