JP6391293B2 - Flexible water-stopping joint for large settlement and seismic reinforcement method for joints using the same - Google Patents

Description

  The present invention relates to a flexible water-stopping joint for large settlement and a method for seismic reinforcement of joints using the same.

  The joints on the walls of concrete facilities built underground such as pipes, caves, and joints in water and sewage treatment facilities will stop water inside and outside, and unequal subsidence and earthquakes will occur on the concrete structures on both sides of the joints. It is necessary to allow expansion and contraction of the wall portion due to time displacement and temperature change. For this reason, the joint has a flexible waterproof structure in which a flexible expansion joint having a waterproof plate made of rubber or synthetic resin is provided inside the concrete facility.

  As such a flexible water-stopping structure, for example, FIG. 7 of Patent Document 1 describes a joint structure installed on a joint between an existing housing having a vertical surface and a new housing having a horizontal surface. This joint structure consists of a steel frame with anchor bolts installed on the horizontal plane of the new frame, a rubber water stop plate that connects the vertical plane of the existing frame and the horizontal plane of the new frame, and the rubber water stop plate. A holding plate for a vertical surface that holds one side edge between the vertical surfaces of the existing housing, and a holding plate for a horizontal surface that holds the other side edge of the rubber water stop plate with the horizontal surface of the new housing. It has. Further, in Patent Document 1, after completion of the frame construction, a rubber water stop plate is fixed with anchor bolts embedded on the new installation side and the existing installation side, and the presser plate is tightened with a nut, and the rubber is restored with a compression restoring force of rubber. It is described to be watered.

JP 2002-70189 A

  For such a flexible water stop structure, a structure capable of absorbing larger unequal subsidence since the 1995 Hyogoken-Nanbu Earthquake has been demanded. In order to increase the allowable subsidence amount of the flexible water stop structure, for example, in the joint structure described in FIG. 7 of Patent Document 1, it is first considered to increase the tension of the rubber water stop plate. For that purpose, the length of the central part of the rubber water stop plate having a substantially M-shaped cross section is increased, or the width of the rubber water stop plate is increased so that the corrugated cross section has more irregularities. It is conceivable to improve the structure. In this case, in order to maintain the strength of the rubber water stop plate, it is necessary to make improvements such as increasing the thickness of the rubber water stop plate or using a reinforcing cloth. Furthermore, it is necessary to improve the size, shape and material of steel frame members and anchor bolts in order to increase the strength in accordance with the improved rubber water stop plate. In order to carry out such improvements, there are problems that it takes development costs and time, and material costs also increase. In addition, in order to avoid the rubber waterstops from coming into contact with the structure due to large uneven settlement, it is conceivable to scrape the part of the structure that the rubber waterstops contact. In addition to the problem of cost and time, there is a further problem that the strength of the structure is weakened.

  In order to solve the above-mentioned problems of the prior art, the present invention is for large subsidence in which the allowable subsidence amount is increased without changing the structure and material of the water stop plate and fixing member of the existing standard water stop joint. An object of the present invention is to provide a flexible waterproof joint and a seismic reinforcement method for joints using the same.

In order to achieve the above object, a flexible water-stopping joint for large settlement according to the present invention includes:
A facility including a horizontal member having a substantially horizontal plane and a vertical member having a substantially vertical plane, wherein the horizontal member and the vertical member are arranged close to each other so that the substantially vertical plane is substantially perpendicular to the substantially horizontal plane. In the flexible water-stopping joint for large subsidence installed across the joint between the end of the horizontal member and the substantially vertical surface of the vertical member,
Including a flexible waterproof joint and a raising member,
The flexible waterproof joint part is a flexible joint capable of uniquely stopping the joint,
Stretch and a strip-shaped member having a water cut, one side edge of the width direction is disposed on the substantially horizontal surface side of the front Symbol horizontal member, other side edge in the width direction is the substantially vertical of the vertical member An expansion and contraction waterproofing member installed on the surface side ;
A fixing member for horizontal member for fixing the one side edge of the front Symbol elastic water-shutoff member to the horizontal member,
A vertical member fixing member for fixing the other side edge of said elastic water-stop member on the vertical member, only containing,
The vertical member fixing member is a structure that cannot move to a position lower than the vertical member fixing member by the substantially horizontal plane with respect to the subsidence of the vertical member,
The raising member is a member that raises the bulk of the flexible water-stop joint portion, and is installed between an end portion of a substantially horizontal plane of the horizontal member and a side edge installed on the horizontal member side of the water-stop member. And a flat plate-like raising member which is fixed by the fixing member for the horizontal member and increases the allowable amount of settlement .

  When the vertical member sinks below the horizontal member, the raising member is installed such that the vertical member fixing member, the expansion / contraction water stop member, and the raising member do not interfere with each other from the substantially vertical surface. It is preferable.

The seismic reinforcement method for joints using the flexible water-stopping joint for large settlement according to the present invention is as follows.
Using the flexible water-stopping joint for large settlement,
A facility including a horizontal member having a substantially horizontal plane and a vertical member having a substantially vertical plane, wherein the horizontal member and the vertical member are arranged close to each other so that the substantially vertical plane is substantially perpendicular to the substantially horizontal plane. In the seismic reinforcement method for joints, the joint between the end of the horizontal member and the substantially vertical surface of the vertical member is seismically reinforced,
Installing a flat plate-like raising member at an end of a substantially horizontal surface of the horizontal member to increase a sinking tolerance;
One side edge in the width direction of the band-shaped stretch water-stopping member having stretchability and water-stopping property is installed on the surface opposite to the horizontal member of the raising member, and the other side edge in the width direction is the above-mentioned of the vertical member. Installing on a substantially vertical surface;
The one side edge of the raising member and the expansion / contraction water stop member is fixed to the horizontal member by a fixing member for a horizontal member, and the other side edge of the expansion / contraction water stop member is fixed to the vertical member by a vertical member fixing member. Fixing to.

  When the vertical member sinks below the horizontal member, the raising member is installed by opening a distance from the substantially vertical plane so that the vertical member fixing member and the expansion / contraction water stop member do not interfere with the raising member. It is preferable.

  According to the present invention, a flexible water-stopping joint for large subsidence in which the allowable amount of subsidence is increased without changing the structure and material of the water-stop plate and fixing member of the existing standard water-stopping joint, and the use thereof A method for seismic reinforcement of joints is provided.

It is a cross-sectional view showing a flexible water-stopping joint for large settlement according to an embodiment of the present invention. It is a cross-sectional view which shows the flexible water-stopping joint for large subsidence of FIG. 1 when unequal subsidence occurs. It is a cross-sectional view which shows the flexible water-stopping joint for large subsidence of FIG. 1 when unequal subsidence occurs. It is a cross-sectional view showing a flexible water-stopping joint for large settlement according to an embodiment of the present invention. It is a cross-sectional view showing a flexible water-stopping joint for large settlement according to an embodiment of the present invention. It is a cross-sectional view showing a flexible water-stopping joint for large settlement according to an embodiment of the present invention. It is the fragmentary sectional perspective view (a) which shows the plant | facility before the flexible water-stopping joint for large subsidences concerning one embodiment of the present invention is applied, and the fragmentary sectional perspective view (b) which shows the plant after being applied. . 1 is a partial cross-sectional perspective view showing a facility to which a flexible water-stopping joint for large settlement according to an embodiment of the present invention is applied. It is a perspective view which shows the raising member of the flexible water-stopping joint for large subsidence concerning one Embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings, but the scope of the present invention is not limited thereto. Further, the direction will be described using terms such as the right side and the left side, with the X direction shown in the figure as the left and right direction, the Y direction as the front and rear direction, and the Z direction as the vertical direction.

  A flexible water-stopping joint for large subsidence according to the present invention includes a horizontal member having a substantially horizontal plane and a vertical member having a substantially vertical plane, which are close to each other so that the substantially vertical plane is substantially perpendicular to the substantially horizontal plane. In a facility where the horizontal member and the vertical member are arranged, the joint is installed across a joint between an end portion of the horizontal member and a substantially vertical surface of the vertical member. The horizontal member is a member having a substantially horizontal plane such as a floor or a ceiling. The vertical member is a wall, a column, a beam, or the like having a substantially vertical surface disposed substantially perpendicular to the substantially horizontal plane. The horizontal member and the vertical member are independently displaced in the horizontal direction and the vertical direction in the event of uneven settlement of the ground, an earthquake, or the like. The joints are often filled with a sealing agent, but need not be filled. Here, the substantially horizontal plane includes a horizontal plane and a plane having an inclination angle of less than 45 degrees, preferably a plane having an inclination angle of less than 20 degrees, more preferably less than 10 degrees. The substantially vertical plane includes a vertical plane and a plane having an inclination angle of 45 degrees or more, preferably a plane having an inclination angle of 70 degrees or more, more preferably 80 degrees or more. Further, the term “substantially perpendicular” means that the angle between the surfaces is greater than 0 degree and less than 180 degrees, preferably greater than 45 degrees and less than 135 degrees, more preferably greater than 70 degrees and less than 110 degrees, and particularly preferably greater than 80 degrees. It is large and less than 100 degrees.

  FIG. 1 is a cross-sectional view showing a flexible water-stopping joint for large settlement according to an embodiment of the present invention. The flexible water-stopping joint A for large subsidence is provided so as to straddle the joint M between the right end portion of the horizontal member C1 and the left side surface of the vertical member C2. The joint M indicates a case where a sealing agent such as synthetic resin or mortar is filled. The flexible water-stopping joint A for large subsidence prevents the inflow of water from outside the facility and improves the absorption of relative displacement of the horizontal member C1 and the vertical member C2 due to unequal subsidence of the ground, an earthquake, or the like.

  The flexible water-stopping joint A for large settlement includes an expansion / contraction water-stopping member 1, a raising member 2, a horizontal member fixing member 3a, and a vertical member fixing member 3b. The stretchable water blocking member 1, the horizontal member fixing member 3a, and the vertical member fixing member 3b are examples of existing standards. Therefore, the flexible water-stopping joint A for large subsidence is not only used when newly constructed, but also reuses the existing stretchable water-stopping member 1, the horizontal member fixing member 3a, and the vertical member fixing member 3b as they are. It can also be applied to seismic reinforcement.

  The expansion / contraction water stop member 1 includes water stop materials 4 a and 4 b, an expansion member 5, and a reinforcing cloth 6. The stretch waterproofing member 1 has one side edge in the width direction (X and Z directions in FIG. 1) fixed to the horizontal member C1 by the horizontal member fixing member 3a together with the raised member 2, and the other side edge in the width direction. Is fixed to the vertical member C2 by the vertical member fixing member 3b.

  The water stop materials 4a and 4b constituting the stretchable water stop member 1 are plate-like members, and are preferably made of butyl rubber. As shown in FIG. 1, the water stop material 4a is installed on the upper surface of the raising member 2, and the water stop material 4b is installed on the left side surface of the vertical member C2, and includes the horizontal member C1 and the vertical member C2. Prevent water from entering the facility.

  The stretchable member 5 constituting the stretchable water blocking member 1 is a belt-like elastic member, and is preferably made of chloroprene rubber. As shown in FIG. 1, both side edges in the width direction (X and Z directions in FIG. 1) of the expansion / contraction member 5 are installed so as to overlap the water stop material 4a and the water stop material 4b, respectively. Moreover, the center part 5a of the width direction of the expansion-contraction member 5 has the protruding mountain structure as shown in FIG. By the expansion and contraction of the expansion / contraction member 5 in the width direction, the relative displacement between the horizontal member C1 and the vertical member C2 due to uneven settlement of the ground, an earthquake, or the like is absorbed. Further, instead of installing the water stop material 4a, the water stop material 4b, and the expansion / contraction member 5, an expansion / contraction member having the same shape as the expansion / contraction member 5 and also having a function as a water stop material may be used. Good.

  The reinforcing cloth 6 constituting the stretchable water blocking member 1 is a cloth-like member, and is preferably made of polyester. As shown in FIG. 1, it is provided so that the whole surface inside the plant | facility of the expansion-contraction member 5 may be covered. The central portion 6 a of the reinforcing cloth 6 has a shape that protrudes further to the inside of the facility than the elastic member 5 so as to withstand the expansion and contraction of the elastic member 5. The reinforcing cloth 6 protects the stretchable member 5 from excessive bulging or damage due to pressure or the like, and increases the strength of the stretchable waterstop member 1. As another form, the reinforcing cloth 6 may be embedded in the elastic member 5.

  The horizontal member fixing member 3a includes a pressing member 7a, an anchor bolt 8a, and a nut 9a that is screwed into the anchor bolt 8a. Similarly, the vertical member fixing member 3b includes a pressing member 7b, an anchor bolt 8b, and a nut 9b that is screwed into the anchor bolt 8b.

  The pressing member 7a presses one side edge of the expansion / contraction water stop member 1 and the raising member 2 so as to be sandwiched between the pressing member 7a and the horizontal member C1. Similarly, the holding member 7b holds the other side edge of the expansion / contraction water stop member 1 so as to be sandwiched between the holding member 7b and the vertical member C2. The holding members 7a and 7b are preferably made of steel. As shown in FIG. 1, the pressing member 7a includes an inward vertical portion 7c, a flat plate portion 7d, and an outward vertical portion 7e. The side edge of the expansion / contraction water stop member 1 including the water stop material 4a, the expansion / contraction member 5 and the reinforcing cloth 6 is accommodated in the substantially concave portion formed by the flat plate portion 7d and the outward vertical portion 7e and the raising member 2. Installed. Similarly, the pressing member 7b includes an inwardly-facing vertical portion 7f, a flat plate portion 7g, and an outward-facing vertical portion 7h. The holding member 7b is fixed to a substantially concave portion formed by the flat plate portion 7g, the outward-facing vertical portion 7h, and the vertical member C2. It installs so that the side edge of the expansion-and-contraction water stop member 1 containing the water material 4b, the expansion-contraction member 5, and the reinforcement cloth 6 may be settled. The inwardly facing vertical portions 7c and 7f are formed when the central portion 5a of the elastic member 5 and the central portion 6a of the reinforcing cloth 6 are further bulged inside the facility due to pressure or the like. 6 prevents the central portion 6a of the 6 from interfering with the fixing members 3a and 3b. The outwardly facing vertical portions 7e and 7h protect the side edges of the elastic member 5 and the reinforcing cloth 6 from damage and the like. In addition, the pressing members 7a and 7b can take various forms, such as those consisting only of the flat plate portions 7d and 7g, respectively.

  The anchor bolts 8a and 8b may be chemical anchors or driving anchors. As shown in FIG. 1, the anchor bolt 8a is fixed to the horizontal member C1 in a direction perpendicular to the upper surface of the horizontal member C1. The anchor bolt 8b is fixed to the vertical member C2 in a direction perpendicular to the left side surface of the vertical member C2. The water stop material 4a, the expansion / contraction member 5, the reinforcing cloth 6, and the presser member 7a each have an insertion hole for inserting the anchor bolt 8a, and the horizontal direction is obtained by tightening the nut 9a to the inserted anchor bolt 8a. It is fixed to the member C1. Similarly, in the vertical member C2, the water blocking material 4b, the expansion / contraction member 5, the reinforcing cloth 6, and the pressing member 7b are fixed to the vertical member C2 by the anchor bolt 8b and the nut 9b.

  The raising member 2 is a plate-like member made of concrete, rubber, synthetic resin, or the like, and is installed on the upper surface of the horizontal member C1 to increase the allowable amount of settlement of the joint. Here, when only the expansion / contraction water-stopping member 1 is installed without using the raising member 2, if the sinking absorption by the expansion / contraction water-stopping member 1 reaches a limit, the expansion / contraction water-stopping member 1 Since the telescopic member 5 is sandwiched between the inwardly facing vertical portion 7f and the horizontal member C1, the inwardly facing vertical portion 7f of the pressing member 7b cannot move to a position lower than the flat plate portion 7d of the pressing member 7a. It is not possible to cope with unequal subsidence exceeding the allowable subsidence. However, when the raising member 2 is installed, the vertically extending portion 7f of the telescopic member 5 and the pressing member 7b can move downward to a position lower than the flat plate portion 7d of the pressing member 7a. It becomes possible to cope with unequal subsidence. Therefore, the height H in the vertical direction Z of the raising member 2 is determined by how much the allowable amount of subsidence is to be increased from the conventional allowable amount of subsidence of the stretchable water blocking member 1. That is, the allowable amount of settlement increases by the height H of the raising member 2. For example, the flexible water-stopping joint A for large subsidence using the conventional expansion / contraction water-stopping member 1 having a sinking allowable amount of 100 mm and the raising member 2 having a height of 50 mm corresponds to unequal subsidence with a subsidence amount of 150 mm. be able to.

  2 and 3 are cross-sectional views showing the flexible water-stopping joint for large settlement shown in FIG. 1 when uneven settlement occurs. As shown in FIGS. 2 and 3, the raising member 2 has a distance D between the right side surface of the raising member 2 and the left side surface of the vertical member C <b> 2 that is about 3 of the thickness of the water stop material 4 b and the thickness of the expansion and contraction member 5. It is installed so as to be larger than the sum E of the double and the width in the left-right direction X of the inwardly facing vertical portion 7f of the pressing member 7b. Thereby, when the relative subsidence amount of the vertical member C2 and the horizontal member C1 exceeds the conventional allowable subsidence amount of the expansion / contraction water stop member 1, that is, the inwardly facing vertical portion 7f of the presser member 7b is pressed by the presser member 7a. Even when trying to move to a position lower than the flat plate portion 7d, interference such as the inwardly extending vertical portion 7f of the telescopic member 5 and the pressing member 7b does not come into contact with the raising member 2 or the like does not occur. Therefore, although the flexible water-stopping joint A for large settlement can be used regardless of the width of the joint in the left-right direction X, the width of the joint in the left-right direction X is greater than the distance E as shown in FIGS. Since the allowable amount of settlement can be increased even when the width of the joint is narrow, it is suitable when the width of the joint is narrow.

  In FIG. 1, the side edge of the stretchable waterproofing member 1 fixed to the vertical member C2 is the height H of the raising member 2 as compared to the conventional fixed position using only the stretchable waterproofing member 1 that is an existing standard. It is fixed at a position shifted only upward. In other words, in FIG. 1, the expansion and contraction water-stopping member 1, the horizontal member fixing member 3 a, and the vertical member fixing member 3 b are only a distance H upward from the conventional one while maintaining the relative positional relationship in the conventional fixing structure. It will be in the state fixed to the moved position. Thus, since each member is in a state in which the relative positional relationship in the conventional fixing structure is maintained, even in the structure of FIG. 1, the stretchable water blocking member 1 of the existing standard is used for the horizontal member fixing member 3 a and the vertical member. The state fixed by the fixing member 3b becomes stable as in the prior art, and each member can be used without changing the structure or material.

  Further, when the height of the raising member 2 is large and the anchor strength is insufficient, the fixing member may be in a form such as the horizontal member fixing member 10a and the vertical member fixing member 10b shown in FIG. . The horizontal member fixing member 10a further includes a retaining member 14a in addition to the pressing member 11a, the anchor bolt 12a, and the nut 13a screwed to the anchor bolt 12a. Similarly, the vertical member fixing member 10b includes a pressing member 11b, an anchor bolt 12b, a nut 13b that is screwed to the anchor bolt 12b, and a removal preventing member 14b. As shown in FIG. 4, the presser members 11 a and 11 b are configured to be fitted into the removal preventing members 14 a and 14 b, respectively. Further, the holding members 11 a and 11 b are configured to be fitted with concave portions provided in the front-rear direction Y on the side edges of the elastic member 5 and the reinforcing cloth 6. Even if the expansion member 5 takes such a form, for example, due to the sinking of the vertical member C2, the expansion member 5 and the reinforcing cloth 6 are pulled, and a force to remove from the horizontal member fixing member 10a is applied. Since the edges of the concave portions of the stretchable member 5 and the reinforcing cloth 6 are hooked on the pressing member 11a, the stretchable member 5 and the reinforcing cloth 6 can be prevented from coming off from the horizontal member fixing member 10a. The slip-off preventing member 14a holds the water-stopping material 4a, the expansion / contraction member 5, the reinforcing cloth 6 and the presser member 7a so as to be sandwiched between the raising members 2, and the anchor bolt 12a and the nut 13a hold the slip-off prevention member 14a with the horizontal member C1. To fix. Therefore, in the case of this form, the insertion hole for inserting the anchor bolt 12a is not required for the water stop material 4a, the elastic member 5, the reinforcing cloth 6, and the pressing member 7a. Similarly, the slip-off preventing member 14b presses the water stop material 4b, the expansion / contraction member 5, the reinforcing cloth 6 and the presser member 7b so as to be sandwiched between the vertical members C2, and the anchor bolt 12b and the nut 13b hold the slip-off preventive member 14b. It fixes to the vertical member C2.

  In addition, when the height H of the raising member 2 cannot be provided at a height that is equal to the allowable subsidence amount to be increased, the extension member 5 is installed in a stretched state as much as possible. The height H can also be suppressed.

  Further, in order to further improve the water-stopping property of the flexible water-stopping joint A for large subsidence, as shown in FIG. 5, a sealing portion 15a for sealing the side surface in the left-right direction X of the raising member 2 with a water-stopping mortar or a sealing agent. And 15b may be provided. At this time, both end portions in the left-right direction X of the seal portions 15a and 15b may be tapered and rubbed against the upper surface of the horizontal member C1. Further, as shown in FIG. 6, a part of the lower surface of the raising member 2 that is in contact with the upper surface of the horizontal member C <b> 1 may be configured with a sealing material 16 such as butyl rubber or water-expanded rubber, thereby improving the water stoppage. .

  Further, as shown in FIG. 6, the large settling flexible waterproof joint A is provided with a cushion material 17 for protecting the elastic member 5 on the upper surface of the horizontal member C <b> 1 on the right side of the raising member 2. Also good.

  7 (a) and 7 (b) are a partial sectional perspective view showing a facility before the flexible water-stopping joint for large settlement according to the present invention is applied, and a partial sectional view showing the facility after being applied, respectively. It is a perspective view. The flexible water-stopping joint A for large settlement is provided so as to straddle the joint M between the right end portion of the horizontal member C1 and the left side surface of the vertical member C2. The horizontal member C1 and the vertical member C2 are made of, for example, reinforced concrete, and are used to configure facilities such as a corridor, a cave, and a common groove of a water and sewage treatment facility. The horizontal member C1 and the vertical member C2 may be flat or columnar.

  Further, the flexible water-stopping joint for large settlement according to the present invention includes a right end portion of the horizontal member C1 and a horizontal member between the right end portion of the horizontal member C1 and the left side surface of the vertical member C2, as shown in FIG. The present invention can also be applied to the joint M at a portion that switches to the left end portion of C3. In this case, a raising member 18 having the same height in the vertical direction Z as the raising member 2 installed on the horizontal member C1 is installed on the horizontal member C3. The raising member 18 is installed by aligning the left end of the horizontal member C3 and the left end of the raising member 18 so that the left side surface of the horizontal member C3 and the left side surface of the raising member 18 are flush with each other. Further, the raising member 18 has a predetermined distance from the left end of the horizontal member C3 to the right in the same manner as the raising member 2 is installed with a predetermined distance from the right end of the horizontal member C1 to the left in FIG. It may be provided and installed. Further, as shown in FIG. 9, the end portions of the raising members 2 and 18 in the front-rear direction Y are tapered at a certain distance from the switching portion and rubbed against the upper surfaces of the horizontal members C1 and C3, respectively. It may be done. Thereby, the water stop at the boundary between the portion where the raising member in the front-rear direction Y is present and the portion where it is not present can be maintained.

The flexible water-stopping joint for large settlement according to the embodiment of the present invention has been described above.
Hereinafter, as an example of the joint seismic reinforcement method using the flexible water-stopping joint for large subsidence according to the present invention, with respect to the existing stretch water-stopping member 1, the horizontal member fixing member 3a, and the vertical member fixing member 3b Will be described.

  First, the nuts 9a and 9b are removed, and the existing stretch water blocking member 1 and the presser members 7a and 7b are removed. The anchor bolt 8a fixed to the horizontal member C1 is left as it is, and the raising member 2 is installed by inserting the anchor bolt 8a into the insertion hole of the raising member 2. At this time, the distance D between the right side surface of the raising member 2 and the left side surface of the vertical member C2 is approximately 3 times the thickness of the water blocking material 4b, the thickness of the expansion / contraction member 5, and the inwardly facing vertical portion 7f of the pressing member 7b. Is greater than the sum E of the width in the left-right direction X.

  Next, the anchor bolt 8b fixed to the vertical member C2 is removed, and the anchor bolt 8b is fixed again at a position moved upward by the height H of the raising member 2 from the original fixing position.

  Finally, the anchor bolts 8a and 8b are inserted through the insertion holes of the stretchable waterstop member 1 and the holding members 7a and 7b, respectively, and the nuts 9a and 9b are tightened, respectively. If the member 1 and the pressing members 7a and 7b are fixed, the process is completed.

  According to the flexible water-stopping joint for large subsidence of the present embodiment, since an existing standard expansion / contraction water-stopping member and a fixing member can be used, the allowable subsidence amount is increased without changing the structure and material of each member. A flexible waterproof joint can be easily realized at low cost and in a short period of time.

  In addition, according to the seismic reinforcement method of the present embodiment, it is possible to attach the structure without having to deform it, for example, by cutting a part of the structure, so it is possible to maintain the shape and strength of the structure. Seismic reinforcement can be achieved by increasing the allowable amount of settlement of the stiffening water structure.

  As mentioned above, although one Embodiment of this invention was described, this invention is not limited to said one Embodiment, In the range which does not deviate from the meaning, it can change suitably.

DESCRIPTION OF SYMBOLS 1 Stretch water stop member 2 Raising member 3a Horizontal member fixing member 3b Vertical member fixing member 4a, 4b Water stop material 5 Stretch member 5a Center part of expansion member 6 Reinforcement cloth 6a Center part of reinforcement cloth 7a, 7b Holding member 7c 7f Inward-facing vertical portion of the pressing member 7d, 7g Flat portion 7e, 7h of the pressing member Outward-facing vertical portion of the pressing member 8a, 8b Anchor bolt 9a, 9b Nut 10a Horizontal member fixing member 10b Vertical member fixing member 11a, 11b Holding member 12a, 12b Anchor bolt 13a, 13b Nut 14a, 14b Removal prevention member 15a, 15b Sealing part 16 Sealing material 17 Cushioning material 18 Raising member A Flexible settling joint C1, C3 Horizontal member C2 Vertical member D Distance between raising member and vertical member H Height of raising member M Joint X Horizontal direction Y Front Direction Z vertical direction

Claims (4)

A facility including a horizontal member having a substantially horizontal plane and a vertical member having a substantially vertical plane, wherein the horizontal member and the vertical member are arranged close to each other so that the substantially vertical plane is substantially perpendicular to the substantially horizontal plane. In the flexible water-stopping joint for large subsidence installed across the joint between the end of the horizontal member and the substantially vertical surface of the vertical member,
Including a flexible waterproof joint and a raising member,
The flexible waterproof joint part is a flexible joint capable of uniquely stopping the joint,
Stretch and a strip-shaped member having a water cut, one side edge of the width direction is disposed on the substantially horizontal surface side of the front Symbol horizontal member, other side edge in the width direction is the substantially vertical of the vertical member An expansion and contraction waterproofing member installed on the surface side ;
A fixing member for horizontal member for fixing the one side edge of the front Symbol elastic water-shutoff member to the horizontal member,
A vertical member fixing member for fixing the other side edge of said elastic water-stop member on the vertical member, only containing,
The vertical member fixing member is a structure that cannot move to a position lower than the vertical member fixing member by the substantially horizontal plane with respect to the subsidence of the vertical member,
The raising member is a member that raises the bulk of the flexible water-stop joint portion, and is installed between an end portion of a substantially horizontal plane of the horizontal member and a side edge installed on the horizontal member side of the water-stop member. Including a flat plate-like raising member that is fixed by the fixing member for the horizontal member and that increases an allowable amount of settlement.
Flexible water-stopping joint for large settlement. When the vertical member sinks below the horizontal member, the raising member is installed such that the vertical member fixing member, the expansion / contraction water stop member, and the raising member do not interfere with each other from the substantially vertical surface. The
The flexible water-stopping joint for large settlement according to claim 1. Using the flexible water-stopping joint for large settlement according to claim 1,
A facility including a horizontal member having a substantially horizontal plane and a vertical member having a substantially vertical plane, wherein the horizontal member and the vertical member are arranged close to each other so that the substantially vertical plane is substantially perpendicular to the substantially horizontal plane. In the seismic reinforcement method for joints, the joint between the end of the horizontal member and the substantially vertical surface of the vertical member is seismically reinforced,
Installing a flat plate-like raising member at an end of a substantially horizontal surface of the horizontal member to increase a sinking tolerance;
One side edge in the width direction of the band-shaped stretch water-stopping member having stretchability and water-stopping property is installed on the surface opposite to the horizontal member of the raising member, and the other side edge in the width direction is the above-mentioned of the vertical member. Installing on a substantially vertical surface;
The one side edge of the raising member and the expansion / contraction water stop member is fixed to the horizontal member by a fixing member for a horizontal member, and the other side edge of the expansion / contraction water stop member is fixed to the vertical member by a vertical member fixing member. Fixing to
Seismic reinforcement method for joints. When the vertical member sinks lower than the horizontal member, the raising member is installed with a distance from the substantially vertical plane that does not interfere with the vertical member fixing member and the expansion / contraction water stop member and the raising member. ,
The method for seismic reinforcement of joints according to claim 3.

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