JP2019210630A - Hanging structure and method for constructing the same - Google Patents

Abstract

To provide a hanging structure capable of improving workability together with design properties and a method for constructing the same.SOLUTION: A hanging structure according to the present invention includes an RC wall 1 having a through hole 2, an insertion body 4 inserted into the through hole 2, and a filling body 6 filled in a gap between the inner wall surface of the through hole 2 and the insertion body 4. The insertion body 4 protrudes from the front side of the RC wall, and a plate 5 joined to the insertion body 4 and extending along the rear side of the RC wall 1 is disposed on the back side of the RC wall 1.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a jumping structure such as a jumping staircase that does not have a girder, and a method for constructing the same.

  For reasons such as clearing the appearance and improving the design, it is necessary to devise some means to prevent the jumping stairs from having a further girder. For example, in Patent Document 1, each of a plurality of treads is supported from below by a tread plate support at a position within one half of the total length of the tread from one end of the tread to the other end. A staircase structure is disclosed in which the support is concealed with a first covering panel.

JP 2006-132240 A

  However, in the said staircase structure, since a stair-like step board support body and a 1st coating | coated panel are used, there exists a problem which the construction becomes complicated.

  In addition, when it is desired not to give the girders to the jumping staircase (external jumping staircase) supported by the RC wall (RC outer wall), the steel staircase itself is kept bouncing when the RC wall is placed. However, this method has a drawback that the formwork becomes complicated and it is difficult to ensure the accuracy when placing.

  The above is not limited to the jumping staircase, and the same applies to other jumping structures.

  An object of this invention is to provide the spring structure and its construction method which make it possible to improve workability as well as design properties.

  In order to achieve the above-described object, the spring structure according to the present invention includes an RC wall having a through hole, an insert inserted into the through hole, and a gap between the inner wall surface of the through hole and the insert. (1).

  In the spring structure, the insert protrudes from the front side of the RC wall, and a plate that is joined to the insert and extends along the back side of the RC wall is disposed on the back side of the RC wall. (Claim 2).

  The spring structure may be a spring staircase (Claim 3).

  On the other hand, the construction method of the spring structure according to the present invention is the construction method of the spring structure according to any one of claims 1 to 3, wherein the through-hole is formed when the RC wall is placed. After the mold is removed, the insert is inserted into the through-hole so as to protrude to the front side of the RC wall, a plate is fixed to the back side of the RC wall, and the insert A body and the plate are joined together, and a filling body is filled in a gap between the inner wall surface of the through hole and the insertion body (Claim 4).

  In the present invention, a spring structure and a construction method thereof that can improve the workability as well as the design property are obtained.

  That is, in the spring structure of the invention according to each claim of the present application, it is possible to prevent the support hardware such as sasara from being exposed at all on the side where the insertion body is located on the RC wall, reduce the number of members, and perform the construction. It is possible to improve the property and the design property. In addition, since the inner dimension of the through-hole is provided with a margin and the insertion body can be integrated with the RC wall by filling the filling body, the workability is improved in this respect as well, and the accuracy is easily secured. .

  In the spring structure according to the second aspect of the present invention, the posture of the insert can be stabilized by the plate, and workability can be improved.

  In the spring structure according to the third aspect of the present invention, it is possible to construct a stairs with a clean appearance without a smooth girder with high accuracy and relatively easily.

  In the construction method of the spring structure of the invention which concerns on Claim 4, the spring structure of Claims 1-3 can be constructed with sufficient workability.

It is a perspective view which shows roughly the structure of the jump staircase which concerns on one embodiment of this invention. (A)-(D) is explanatory drawing of the construction method of the said splash structure, (E) is explanatory drawing which looked at the splash structure of (D) from the front side. (A) is a longitudinal cross-sectional view which shows schematically the structure of the collar support structure which concerns on the modification of this invention, (B) is the BB sectional drawing of (A). (A) is a longitudinal cross-sectional view which shows schematically the structure of the steel floor support structure which concerns on the modification of this invention, (B) is the BB sectional drawing of (A). (A) is a longitudinal cross-sectional view which shows schematically the structure of the sine support structure which concerns on the modification of this invention, (B) is the BB sectional drawing of (A).

  Embodiments of the present invention will be described below with reference to the drawings.

  The jumping staircase shown in FIG. 1 is a steel staircase that is constructed on an RC wall (RC outer wall) without a sagittal girder and a kick plate. The construction method will be described below in conjunction with the explanation of the configuration of the jumping stairs.

  (1) First, when the RC wall (including the SRC wall) 1 is placed, a sleeve 3 for forming the through hole 2 is installed (see FIG. 2A). In order to make it easier to remove the formwork, the cross-sectional dimension of the sleeve 3 is gradually reduced toward one side (in this example, the outdoor side). The lower part (lower surface) of the rear through-hole 2 is configured to be lowered (inclined) toward the outdoor side (outer surface side) of the RC wall 1.

  (2) After demolding, the insert 4 is inserted into the through-hole 2 so as to protrude to the front side of the RC wall 1, the plate 5 is fixed to the back side of the RC wall 1, and the insert 4 and the plate 5 are joined. (See FIGS. 2B and 2C).

  Here, as shown in FIG. 2 (C), in this example, two through holes 2 positioned at an appropriate interval in the horizontal direction are paired and arranged on the RC wall 1 in steps. The inserts 4 inserted into the through-holes 2 and 2 are also in pairs, and each set of inserts 4 is fixed to a single plate 5 (see FIG. 2E).

  The insertion body 4 protrudes largely from the front side of the RC wall 1 and does not protrude from the back side or protrudes slightly.

  Joining of the insert 4 and the plate 5 may be performed inseparably by welding or the like, or may be performed separable by bolting or the like. If the insert 4 and the plate 5 are separable, the plate 5 can be removed after construction, and in this case, it is easy to ensure the design of the back side of the RC wall 1.

  The plate 5 may be fixed to the RC wall 1 using, for example, an anchor bolt or the like (not shown). At this time, the plate 5 is fixed so as to extend along the back side of the RC wall 1.

  (3) Filler (in this example, non-shrink mortar) 6 is filled in the gap between the inner wall surface of through-hole 2 and insert 4. Here, in this example, it is necessary to maintain the position of the insertion body 4 by supporting the plate 5 until the filled body (filler) is cured. For this purpose, the struts of the plate 5 are used (resistance stance). In view of the fact that it is effective to extend the plate 5, the plate 5 is greatly extended above the through-hole 2 (in the plate 5, the protrusion margin from the through-hole 2 downward is larger than the projection margin from the bottom. is there).

  (4) Seal the gap between the through hole 2 and the insert 4 from the front side of the RC wall 1 to ensure water-stopping. In FIG. 2D, 7 and 8 are sealing materials.

  By the above procedure, it is possible to realize a spring-out steel staircase without a girder supported by the RC wall 1 (RC frame). That is, in this example, the insertion body 4 is a tread board support material, and by attaching a tread board (not shown) to the pair of insertion bodies 4 and further a decorative member, a handrail 9 or the like as needed, the structure shown in FIG. Configure the staircase shown. Note that a bolt hole or the like may be formed in advance in the insertion member 4 in consideration of mounting of a tread.

  And each component of this example should just use what has appropriate intensity | strength, a weather resistance, etc. in consideration of a use environment.

  In the jumping staircase of this example, it is possible to prevent any support hardware such as a saddle girder from being exposed on the side of the RC wall 1 where the insert 4 is located (the protruding front side), reducing the number of members and workability. Furthermore, it becomes possible to improve the designability.

  Moreover, since the insert 4 can be integrated with the RC wall 1 by filling the filling body 6 with an allowance in the inner dimension of the through hole 2, the workability is improved and the accuracy is ensured. Easy to fit.

  Furthermore, by using the plate 5, the posture of the insert 4 during the construction can be stabilized, and the workability can be improved also in this respect.

  Combined with the above effects, the jumping staircase of the present example can be constructed with high accuracy and relatively simply while exhibiting a clean appearance with no girders. In particular, even when the jumping staircase is provided so as to protrude outdoors, it can be easily constructed from the indoor side.

  In addition, this invention is not limited to said embodiment at all, Of course, it can change and implement variously in the range which does not deviate from the summary of this invention. For example, the following modifications can be given.

  The through-holes 2 and the inserts 4 may be provided as a single unit or a set of three or more, instead of two each. Moreover, the positional relationship of the through-hole 2 and the insertion body 4 which comprise each group is not restricted to what is mutually separated in the horizontal direction, For example, you may leave | separate to the up-down direction.

  Moreover, if there is no problem in terms of design and the like, a kick plate or a spar can be provided, and the configuration and construction method of the jumping stairs is applicable not only outdoors but also indoors. .

  And said accommodation has the versatility applicable also to other spring structures, such as a spring of a spring (cantilever), a steel floor, a sign.

  FIGS. 3A and 3B show an example in which the above-described accommodation is applied to a spring bag. In this example, a set of two inserts 4 protruding from the RC wall 1 are provided at an appropriate interval in the horizontal direction, and the support members 10 are held by each set of inserts 4, and two adjacent support members 10 are provided. One brazing material 11 is supported by.

  An example in which the above-described accommodation is applied to a spring steel floor is shown in FIGS. 4 (A) and 4 (B). In this example, the insertion bodies 4 protruding from the RC wall 1 are provided at appropriate intervals in the horizontal direction, and the walking floor material 12 is installed over the plurality of insertion bodies 4. In FIG. 4B, 13 is a walking floor fixing member.

  FIGS. 5A and 5B show an example in which the above-mentioned accommodation is applied to a splash sign (outer wall). In this example, a large-diameter portion 14 is provided at the tip of the insert 4 protruding from the RC wall 1, and a sign member 15 is wound around the trunk of the insert 4.

  Needless to say, the modifications described in the present specification may be combined as appropriate.

DESCRIPTION OF SYMBOLS 1 RC wall 2 Through-hole 3 Sleeve 4 Insert body 5 Plate 6 Filler 7 Seal material 8 Seal material 9 Handrail 10 Support material 11 Anchor material 12 Walking floor material 13 Walking floor fixing member 14 Large diameter part 15 Sign member

Claims (4)

An RC wall having a through hole;
A plug inserted into the through hole;
A spring structure comprising a filling body filled in a gap between an inner wall surface of the through hole and the insertion body. The insertion body protrudes from the front side of the RC wall,
The splash structure according to claim 1, wherein a plate joined to the insert and extending along the back side of the RC wall is disposed on the back side of the RC wall.   The spring structure according to claim 1, wherein the spring structure is a spring stairs. It is a construction method of the spring structure according to any one of claims 1 to 3,
At the time of placing the RC wall, a sleeve for forming the through hole is installed,
After demolding, the insertion body is inserted into the through hole so as to protrude to the front side of the RC wall, a plate is fixed to the back side of the RC wall, and the insertion body and the plate are joined So that
A method for constructing a spring structure that fills a gap between an inner wall surface of the through hole and the insert.