JP4826605B2 - Margin cutting structure of a self-contained porch in a base-isolated house - Google Patents

Description

  The present invention relates to the structure of the edge-cutting portion between the foundation and the upper structure in the seismic isolation house, and more particularly to the structure of the edge-cutting in the doorway and outer wall provided in the detached house.

  2. Description of the Related Art Conventionally, in a detached house or the like, a seismic isolation building including a seismic isolation device that enables relative displacement of a housing part with respect to a foundation by a laminated rubber bearing, a rolling bearing, a sliding bearing or the like is known. In such a base-isolated building, when the earthquake occurs, the vibration energy transmitted to the upper structure is relaxed to prevent the collapse of the house and the fall of indoor furniture and the like. With regard to such a base-isolated building, there are a number of technologies for seismic isolation devices for mitigating shaking, and it is possible to perform base isolation using various methods. For this reason, in recent years, attention has been paid to the structure of the edge cut portion between the foundation and the upper structure. With regard to the structure of this edge cut portion, for example, a draining member is disposed and water is placed under the floor. Technology that considers not to enter (see Patent Document 1), technology that prevents the edge cutout from being exposed by shielding the edge cutout with a cover, etc., and makes the rain cut off at the edge cutout (patent Reference 2) is open to the public.

JP 2003-293467 A JP 2001-262864 A

  However, in the structure of the edge cut in the conventional seismic isolation building, it is necessary to arrange a cover, an expansion joint, etc. to shield the edge cut between the foundation and the upper structure. There is concern that it will take time. Therefore, in the present invention, there is provided an edge cutting structure capable of preventing inundation and invasion of insects and small animals without disposing a shielding member such as a cover or an expansion joint at the edge cutting portion between the foundation and the upper structure. To do. In addition, the present invention provides a seismic isolation house that takes into consideration the design characteristics of a detached house for the self-contained porch and the outer wall portion that are considered in particular.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

Edge cutting structure of a self-contained porch in a base-isolated house, which is base-isolated by a base (3) formed on the ground (10) and a base-isolation device (49) placed on the base (3) The structure of the gap portion between the foundation beam (4) of the housing part (2) and the foundation (3) at the position where the free mouth porch part is formed is a part of the hanging wall on the foundation beam (4) side ( 8), and a water stop plate (5) is arranged on the upper surface of the foundation (3) located below the outer wall, and the edge cut portion (11) in the self-contained pouch (3) It is formed between the step (22) formed above and the pouch part that protrudes from the base beam (4) of the housing part (2) to the outdoor side in front of the door (25), The pouch part includes a protruding plate (23) and a decorative cover (30) fixed to the outer side of the protruding plate (23). The protruding plate (23) forms a stepped portion (23a) along the housing portion, and a step (22) is arranged below the stepped portion (23a), and the decorative cover (30) Is provided so as to cover the side of the protruding plate (23), is formed longer than the vertical length of the protruding plate (23), and the bottom of the decorative cover (30), and the step (22) A gap is formed between the base wall (4), the outer wall panel (12) is fixed to the base beam (4), and the outer wall panel (12) is fixed to the upper part of the outer wall panel (12). A draining plate (17) is provided, and is arranged so that the height position of the upper surface of the protruding plate (23) of the pouch part substantially coincides with the height position of the draining plate (17) .

  As effects of the present invention, the following effects can be obtained.

  Edge cutting structure of a self-contained porch in a base-isolated house, which is base-isolated by a base (3) formed on the ground (10) and a base-isolation device (49) placed on the base (3) The structure of the gap portion between the foundation beam (4) of the housing part (2) and the foundation (3) at the position where the free mouth porch part is formed is a part of the hanging wall on the foundation beam (4) side ( 8), and a water stop plate (5) is arranged on the upper surface of the foundation (3) located below the outer wall, and the edge cut portion (11) in the self-contained pouch (3) It is formed between the step (22) formed above and the pouch part that protrudes from the base beam (4) of the housing part (2) to the outdoor side in front of the door (25), The pouch part includes a protruding plate (23) and a decorative cover (30) fixed to the outer side of the protruding plate (23). The protruding plate (23) forms a stepped portion (23a) along the housing portion, and a step (22) is arranged below the stepped portion (23a), and the decorative cover (30) Is provided so as to cover the side of the protruding plate (23), is formed longer than the vertical length of the protruding plate (23), and the bottom of the decorative cover (30), and the step (22) Since the gap portion is used as the edge cut portion (11) in the free mouth pouch portion, the edge cut in the free mouth pouch can be shielded without arranging a cover or the like, and it can Seismic isolation can be performed smoothly without interfering with the relative displacement of the superstructure.

  Further, it is possible to prevent water from entering under the floor and invasion of insects and small animals without disposing a cover or the like at the edge formed at the connecting portion between the foundation and the upper structure.

Moreover, also in the design surface, it can be set as the external appearance comparable with the normal house which is not equipped with the seismic isolation apparatus.

  Moreover, even if an earthquake occurs, it will not be damaged and will not be deformed when the upper structure returns to its original position. Moreover, the relative displacement of the superstructure with respect to the foundation during an earthquake is not hindered.

  Further, when an earthquake occurs, the housing part and the pouch part operate integrally, and the base (3) part can be easily displaced relatively without being caught.

  In addition, an edge-cutting structure in the outer wall portion is also configured, and in the gap portion, it is possible to prevent underfloor ventilation, underwater flooding, and invasion of insects.

  Moreover, since the edge cutting structure in the free mouth pouch part is configured, the edge cutting part is not shielded by a cover or the like, and can be configured so as not to change from an ordinary house. Moreover, when an earthquake occurs, there is no catch and the housing part can be smoothly displaced relative to the ground.

  Next, embodiments of the invention will be described.

  FIG. 1 is a side view showing an edge cutting structure in an outer wall portion of a base-isolated house.

  2 is a cross-sectional view, and FIG. 3 is a cross-sectional view showing a configuration of a hanging wall parting.

  FIG. 4 is a front view showing an edge cutting structure in a user's mouth according to the present invention.

  FIG. 5 is a side view of the same, and FIG. 6 is a perspective view showing the structure of a free mouth pouch.

  FIG. 7 is a cross-sectional view showing the edge cutting structure in the entrance porch, and FIG. 8 is a cross-sectional view showing the edge cutting structure in the piloti.

  The seismic isolation house according to the present invention is placed on a foundation formed on the ground via a seismic isolation device made of an isolator such as laminated rubber, and is supported in a state of being substantially insulated from the ground. Thereby, the housing as the upper structure is seismically isolated so that it can be displaced relative to the foundation in the horizontal direction.

  Further, in the present invention, the edge cutting part is the edge cutting part between the lower structure and the upper structure formed of the foundation and the seismic isolation layer formed on the ground, and the foundation part that vibrates with the ground when an earthquake occurs, The connection part with the housing part which is substantially insulated with respect to this foundation part and a vibration is relieved is shown.

  First, the edge cutting structure in the outer wall part of a house is demonstrated regarding the edge cutting structure of the hand port porch in the seismic isolation house which concerns on this invention. As shown in FIG.1 and FIG.2, in the outer wall part of a house, the edge cut part 1 forms between the foundation 3 formed on the ground 10, and the house part 2 supported by the seismic isolation apparatus which is not shown in figure. Has been. The outer wall portion of the housing part 2 is composed of an outer wall panel 12 fixed to the base beam 4 and a hanging wall parting 8 fixed to the lower part of the base beam 4 with mounting bolts 27. A draining plate 17 is attached to the joint between the upper outer wall panel 15 and the joint.

  At the left and right ends of the outer wall panel 12, a fixing plate 14 is projected in the inner (indoor side) direction of the panel, and the fixing plate 14 is fastened to the base beam 4 with mounting bolts. The outer wall panel 12 is fixed. Further, the lower part of the outer wall panel 12 is sealed to the drooping wall parting 8 by a seal member 13 to prevent water from entering.

  The draining plate 17 disposed on the joint between the outer wall panel 12 and the upper outer wall panel 15 is fixed at the base side to the upper surface of the base beam 4 with fixing bolts 29 and inclined downward toward the outside from the outer wall panel 12. Are arranged. Further, a water stop member 18 is disposed on the base side of the draining plate 17 and inside the outer wall panel 12, thereby preventing rainwater and the like from entering the outer wall. With such a configuration of the draining plate 17, water droplets or the like flowing downward through the outer wall panel 12 travel along the upper surface of the draining plate 17 and are discharged to the outside without entering the panel.

  As shown in FIG. 3, the hanging wall parting 8 is fixed to the upper plate 8b, which is fixed to the upper plate 8b and the upper plate 8b, which is L-shaped in section when fastened to the base beam 4 by mounting bolts 27. It is comprised from the lower board 8a which protruded on the outdoor side, and is formed in the tubular shape. A mesh-like ventilation port 9 is opened at the bottom of the lower plate 8a, and the ventilation ports 9 are opened at intervals of about 0.5 m around the housing part. It allows ventilation under the floor. Further, the base beam 4 to which the hanging wall parting 8 is fixed is provided with a vent 4a, and the air that has entered from the vent 9 passes through the vent 4a of the base beam 4 and flows below the floor. Ventilation is performed. In addition, a water-stop member 6 formed of an elastic material such as rubber or sponge is provided on the lower surface of the bottom surface of the hanging wall parting 8 and on the indoor side of the ventilation opening 9 along the outer periphery of the housing part. Has been.

  An edge cutting portion 1 is formed in a gap between the lower part of the hanging wall parting 8 and the upper side of the foundation 3 formed on the ground, and the upper surface of the foundation 3 is directed upward in order to shield the edge cutting part 1. The water stop plate 5 protruding in the vertical direction is provided along the outer periphery in the vertical direction so that the water stop plate 5 and the water stop member 6 overlap in a side view. And the water stop structure in the edge cut part 1 is comprised by the water stop plate 5 provided on the foundation 3, and the water stop member 6 provided in the bottom face of the drooping wall parting off 8, and, thereby, such as submerged underwater and an insect The intrusion can be prevented.

  Even when an earthquake occurs and the housing part is relatively displaced with respect to the foundation by the edge cutting structure in the outer wall part as described above, the water stop plate 5 and the water stop member 6 are elastic bodies such as rubber and sponge. It is not damaged and is not restored when it returns to its original position. Moreover, the relative displacement of the foundation and the housing part due to the earthquake is not disturbed. Also, unlike the conventional case, there is no need to place a cover or the like at the edge cut portion, which is advantageous in terms of cost, and in terms of design, it should have an appearance that is comparable to a house that does not have a seismic isolation device. It can be done.

  Next, the edge cutting structure in the free mouth pouch part of the present invention will be described. As shown in FIG. 4 and FIG. 5, the edge cut portion 11 in the hand port porch part is the step 22 formed on the foundation 3 by site construction, and the front side of the hand port 25 from the base beam 4 of the housing part to the outdoor side. And a pouch portion provided so as to protrude to the side.

  The pouch part is composed of a protruding plate 23, a decorative cover 30 fixed to the outer side of the protruding plate 23, and a cement plate 24 attached to the upper surface of the protruding plate 23. The cement plate 24 is formed of a hollow plate-like member formed by extrusion molding, and has light weight and rigidity capable of withstanding sufficient heavy pressure.

  The protruding plate 23 forms a stepped portion 23a along the housing portion, and is arranged so that the step 22 is positioned below the stepped portion 23a. As shown in FIGS. 5 and 6, the protruding plate 23 is suspended between the three arms 32, 32, and 32, which are bolted to the base beam 4 of the housing portion and protrude outward. .., The receiving plates 34 and 34 that form the staircase 23a, and the arm holding members 35 and 35 that support the receiving plates 34 and 34.

  The arms 32, 32, 32 are provided with stays 33a, 33a,... For fixing the arm links 33, 33,. The cement plate 24 is arranged on the surface. The receiving plates 34 and 34 are fixed to the arm 32 on one side and formed in an L shape, and a brace retaining member 35 is suspended between the bent portion and the arm 32 at the intermediate position so as to be rigid. Strengthening is planned. Thereby, it is possible to prevent bending even when a heavy pressure is applied to the receiving plate 34. The cement plate 24 is also disposed on the receiving plate 34.

  The decorative cover 30 is provided so as to cover the side portion of the protruding plate 23 and is longer than the vertical length of the protruding plate. The gap between the bottom portion of the decorative cover 30 and the step 22 is designed to be about 7 mm, and is configured so as to hardly feel the gap interval in appearance. The gap portion is used as the edge cut portion 11 in the self-contained pouch portion, and when the earthquake occurs, the housing portion and the pouch portion operate integrally, and the relative displacement can be easily performed without being caught with respect to the base 3 portion. It is something that can be done.

  Moreover, the structure of the clearance gap between the housing part 2 and the foundation 3 at the position where the porch part is formed is the same as the edge cutting structure in the outer wall part described above. It is configured to prevent infiltration of water and insects. Further, the height position of the upper surface of the pouch portion is arranged so as to substantially coincide with the height position of the draining plate 17, and the outer wall panel 15 is arranged by arranging the pouch portion with a gap with respect to the draining plate 17. The water droplets and the like flowing along the water drain plate 17 flow from the gap to the ground.

  As described above, since the edge cutting structure in the free mouth pouch part is configured, the edge cutting part is not shielded by a cover or the like, and can be configured so as not to change in appearance from a normal house. Moreover, when an earthquake occurs, there is no catch and the housing part can be smoothly displaced relative to the ground.

  Next, the edge cutting structure in the entrance porch part is demonstrated. As shown in FIG. 7, the edge cut 21 in the entrance porch part is formed between a step 46 formed on the foundation 3 by site construction and an entrance porch 45 provided on the front outside of the entrance door 42. .

  The step 46 is formed by applying mortar on the foundation 3 and applying tiles thereon. The step 46 is integrally formed on the ground and vibrates with the ground when an earthquake occurs. The entrance porch 45 is formed by applying concrete, mortar, and tile on a deck plate, and is composed of a deck 47 integrated with the entrance 40 in the entrance door 42, and is attached to the main body portion of the house. . The deck 47 below the entrance door 42 is provided with a support beam 43 in the concrete portion, and the entrance porch 45 and the entrance 40 can be connected to each other by the support beam 43 so as to be integrated.

  The inside of the entrance door 42 becomes a floor 39 in the house through the entrance 40, and the floor 39 is configured by sticking a floor board on a plywood or an insulating material arranged on the base beam 4.

  Further, the entrance 40 and the entrance porch 45 constituted by the integrated deck 47 are fixed and supported by the base beam 4 of the housing main body part, and the entrance porch is provided by the seismic isolation device 49 arranged on the foundation 3. 45 is supported at a lower position, and does not bend even when heavy pressure is applied on the entrance porch 45. A support beam 44 is provided at the front end portion of the entrance porch 45 of the deck 47, and the entrance porch 45 is reinforced by the support beam 44.

  The entrance porch 45 and the step 46 are arranged stepwise, and a slight gap is formed between the top surface of the step 46 and the bottom surface of the entrance porch 45, and an edge cut in the entrance porch portion is formed in the gap portion. 21 is formed. Since the entrance porch 45 is supported by the support beam 44 and the seismic isolation device 49 and does not bend, the entrance porch 45 and the step 46 do not come into contact with each other at the edge cut 21 and even when an earthquake occurs. The relative displacement can be smoothly performed.

  Further, a water stop plate 5 is disposed on the upper surface of the foundation below the front end portion of the entrance porch 45 so that water does not enter the seismic isolation layer where the seismic isolation device 49 is arranged. . Further, a drain pipe 37 is provided in the foundation 3 as a base of the base isolation device, and even when water enters the base isolation layer, the drain pipe 37 can drain the ground. Is.

  As described above, since the edge cutting structure in the entrance porch part is configured, it is possible to prevent water from entering under the floor and invasion of insects and small animals without shielding the edge cutting part with a cover or the like. Since the gap between the edges is small, it does not stand out in appearance, and there is no risk of impairing the design as a detached house.

  Next, the edge cutting structure in the piloti will be described. As shown in FIG. 8, the edge cut 31 in the piloti is formed between the deck 53 and the foundation 3 in the piloti 60. The deck 53 is formed by providing a concrete layer 53a and a mortar layer 53b on a deck plate 54, and applying tiles 53c on the surface thereof. The base side of the deck 53 is supported by the base beam of the housing body, and the outer side thereof is supported by the support beam 52. The support beam 52 supports the deck plate 54 and supports the deck 53 by supporting a mortar receiving plate 55.

  Further, a piloty column 50 is disposed at a corner of the deck 53, and the piloty column 50 is fastened to the upper surface of the support beam 52 with a bolt or the like. A makeup is formed on the surface of the piloty column 50, and a sealing member 56 seals the connecting portion between the piloty column 50 and the deck 53. Further, a water stop plate 5 is disposed on the upper surface of the foundation 3 arranged below the support beam 52, and the water stop plate 5 prevents water from entering the lower part of the piloti.

  As described above, since the edge cutting structure in the piloti is configured, it is possible to prevent water from entering under the floor without providing a cover or the like at the edge cutting part, and in terms of design, there is no change from the ordinary house. It can be a seismic house.

The side view which shows the edge cutting structure in the outer wall part of the seismic isolation house which concerns on this invention. Similarly sectional drawing. Sectional drawing which shows the structure of a drooping wall parting. The front view which shows the edge cutting structure in a selfish opening. Similarly side view. The perspective view which shows the structure of a hand port porch. Sectional drawing which shows the border cutting structure in an entrance porch. Sectional drawing which shows the edge cutting structure in a piloti.

Explanation of symbols

1 ・ 11 ・ 21 Edge cutting 2 House 3 Foundation 4 Base beam 5 Water stop plate 6 Water stop member 8 Hanging wall part 9 Ventilation port 10 Ground 23 Splash plate 45 Entrance porch 60 Piloti

Claims (1)

Edge cutting structure of a self-contained porch in a base-isolated house, which is base-isolated by a base (3) formed on the ground (10) and a base-isolation device (49) placed on the base (3) The structure of the gap portion between the foundation beam (4) of the housing part (2) and the foundation (3) at the position where the free mouth porch part is formed is a part of the hanging wall on the foundation beam (4) side ( 8), and a water stop plate (5) is arranged on the upper surface of the foundation (3) located below the outer wall, and the edge cut portion (11) in the self-contained pouch (3) It is formed between the step (22) formed above and the pouch part that protrudes from the base beam (4) of the housing part (2) to the outdoor side in front of the door (25), The pouch part includes a protruding plate (23) and a decorative cover (30) fixed to the outer side of the protruding plate (23). The protruding plate (23) forms a stepped portion (23a) along the housing portion, and a step (22) is arranged below the stepped portion (23a), and the decorative cover (30) Is provided so as to cover the side of the protruding plate (23), is formed longer than the vertical length of the protruding plate (23), and the bottom of the decorative cover (30), and the step (22) A gap is formed between the base wall (4), the outer wall panel (12) is fixed to the base beam (4), and the outer wall panel (12) is fixed to the upper part of the outer wall panel (12). A draining plate (17) is provided, and the height position of the upper surface of the protruding plate (23) of the pouch part is arranged so as to substantially coincide with the height position of the draining plate (17). A marginal structure of a self-contained porch in a seismic house.

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