JP4993487B2 - Clay concrete construction method of building using outer wall panel and steel foundation - Google Patents

Description

This invention mainly, stores and offices, such as warehouses, about the earth floor concrete construction method of the outer wall panel steel foundation used buildings to be applied to building relocated and needed.

In the construction of a steel building with an outer wall panel placed on a steel foundation, there is a construction method in which the construction of an internal scaffolding is carried out by carrying out groundwork in the building prior to the work of fixing the outer wall panel on the steel foundation. It is advantageous from the viewpoint of workability and safety, and is often performed.
In the case of this construction method, as shown in FIG. 11 and FIG. 12, it was provided on the lower end of the standing frame material 38 of the outer wall panel 34 on the steel base 32 made of the shape steel having the upper and lower flanges 32a and 32b. A column base joining plate 39 is disposed, and the joining bolts 42 and 43 are inserted through bolt holes (not shown) provided in the upper flange 32a of the steel base 32 and the column base joining plate 39, thereby joining the joint bolt 42. , 43 to join the outer wall panel 34 onto the steel foundation 32.

  However, in the construction described above, in order to enable the outer wall panel 34 to be joined to the steel foundation 32, in the construction work in the building prior to the joining work, Because the earth and sand cannot be backfilled to the part, reworking of the geological work occurs.

  In order to avoid such a problem, as shown in FIG. 13, the bolts previously inserted into the bolts 43 (not shown) at positions offset toward the building side of the upper flange 32 a of the steel base 32 are arranged in advance. Leave it in the hole. It is also conceivable that the bolt head is prepared by, for example, sticking it to the lower surface of the upper flange 32a with an adhesive tape, and then carrying out ground work in the building. In this case, a soil earth work stop member 46 is installed at the end of the steel foundation 32 so that the earth and sand 47 is not backfilled to the place where the joining bolt 43 of the steel foundation 32 is charged in the earth work. .

  However, in this case, not only the preparation of the joining bolt 43 is very uncertain, but also the joining bolt 43 cannot be turned by pressing the head side of the joining bolt 43 in the joining operation. If it occurs, there is a problem that it cannot be dealt with. Furthermore, when the steel base 32 is hot dip galvanized, it is difficult to pre-attach the welding bolt 43 by welding or the like.

  Also, in the demolition work of a building for the purpose of relocation, etc., the outer wall panel 34 is dismantled prior to the soil dismantling, so the head of the joint bolt 43 at a position offset to the building side in the dismantling work is held down. Since this is not possible, there is a problem in that the joint bolt 43 rotates together and it becomes difficult to disassemble the outer wall panel 34.

The purpose of this invention is capable of rework without shortening the construction period of the construction and the mounting structure of the outer wall panels and the steel basis between fastening bolt which can perform an outer wall panel dismantling during building demolition readily take advantage The purpose of the present invention is to provide a method for constructing soil concrete in a building using an outer wall panel and steel foundation, which can easily perform soil concrete construction.

The mounting structure of the outer wall panel and the steel foundation joint bolt used in the method of constructing the concrete between the outer wall panel and the steel foundation of the present invention is as follows. A joint bolt in which a column base joint plate provided at the lower end of the standing frame material is arranged and joined by a joint bolt inserted between the upper flange of the steel base and the bolt hole provided in the post base joint plate. The joint bolt is a cut-off bolt, and the joint bolt is inserted into the bolt hole provided in the upper flange of the steel base so that the upper end protrudes above the upper flange. A support nut having a plate on the lower surface is screwed to the lower end of the joining bolt, and the support nut is disposed on the upper surface of the lower flange of the steel foundation, and the upper flange In the lower is screwed the two lower nuts on the fastening bolt, these two lower nut, characterized in that fastened to the state pressed to the lower surface of the upper flange. Since two lower nuts are provided to form a double nut, a locking action is obtained.
In this way, after preparing the joint bolts to the steel foundation, considering the workability and safety in building a scaffold in the building, prior to joining the outer wall panel onto the steel foundation Carry out construction work in the building. In the joining operation of the outer wall panel, since the joining bolt is set between the upper and lower flanges of the steel foundation with the support nut and the two lower nuts as described above, the joint bolt does not rotate together, and the steel The column-base joining plate is securely fastened on the foundation. As a result, as in the conventional case, there is no return to the groundwork construction in the building, and the construction period can be shortened.
Also, when dismantling the steel building constructed in this way, the outer wall panel is dismantled prior to the soil dismantling, but when the outer wall panel is dismantled, the bolt heads are used for the joint bolts on the building side. It is not possible to take preventive measures such as pressing. However, in this case as well, since the joining bolt is prepared in the steel foundation by the mounting structure described above, the joining bolt does not rotate together when the upper nut screwed to the upper end of the joining bolt is loosened. The dismantling work can be easily performed.

Dirt floor concrete construction method of the outer wall panel steel foundation using building of the invention is a dirt floor concrete construction method using a mounting structure of Lee exterior wall panels and the steel basis between fastening bolt of the above configuration, the fastening bolt is the Attach the formwork support hardware to the part that protrudes from the upper flange of the steel base of the joint bolt, with the support nut and the lower nut attached to the steel base and the outer wall panel not yet installed. Of the earthen small concrete block molds arranged along the longitudinal direction on the upper surface of the steel foundation, a column mold part for forming a column shape avoiding recess to avoid the standing frame material of the outer wall panel in the soil concrete A concrete retaining mold is attached to the above-mentioned metal mold for supporting the mold, and soil concrete is cast.
According to this construction method, the joint bolts that are prepared on the steel foundation to join the outer wall panel on the steel foundation can be used as a jig for mounting the formwork. Concrete construction can be easily performed.

Mounting structure of the outer wall panels and the steel basis between fastening bolt used in the dirt floor concrete construction method of the outer wall panel steel foundation used building this invention, on the steel foundation consisting of shaped steel having a flange vertically, the outer wall panels The column base joining plate provided at the lower end of the vertical frame material is disposed and joined by a joining bolt inserted between the upper flange of the steel foundation and the bolt hole provided in the column base joining plate. A bolt mounting structure, wherein the joining bolt is a cut-off bolt, the joining bolt is inserted into the bolt hole provided in the upper flange of the steel base, and the upper end protrudes above the upper flange, and A support nut having a plate on the lower surface is screwed to the lower end of the joining bolt, and the support nut is disposed on the upper surface of the lower flange of the steel foundation, and the upper flange Since the two lower nuts are screwed onto the joint bolts on the lower side and these two lower nuts are pressed against the lower surface of the upper flange, there is no rework and the work period is shortened. It becomes possible.
The method for constructing the concrete between the outer wall panel and the steel foundation building according to the present invention is a method for constructing the concrete between the outer wall panel and the steel foundation joint bolt having the above-described configuration , wherein the joint bolt is the steel steel. With the support nut and the lower nut attached to the foundation, and with the outer wall panel not yet installed, a mold support hardware is attached to a portion protruding from the upper flange of the steel foundation of the joining bolt, Column-shaped part concrete for forming a column-shaped avoidance concave portion in the soil-concrete that avoids the standing frame material of the outer wall panel among the soil-made small-sized concrete retaining molds arranged along the longitudinal direction on the upper surface of the steel foundation Since the fixed formwork was attached to the above-mentioned metalwork for supporting the formwork, and soil concrete was to be cast, it was possible to apply soil concrete without using a lot of jigs. It can be carried out easily.

  An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a perspective view showing a state during construction of a steel building to which the present invention is applied. This steel building has a structure in which an outer wall panel 4 is installed on a foundation 1. As shown in a cross-sectional view in FIG. 2, the foundation 1 includes a steel foundation 2 and a concrete foundation 3 provided below the steel foundation 2. The steel foundation 2 is made of a shaped steel having upper and lower flanges 2a and 2b. As shown in FIG. 3, the upper end portion of the anchor bolt 5 embedded in the concrete foundation 3 is inserted into the bolt hole 6 provided in the lower flange 2 b of the steel foundation 2 and the upper end portion of the anchor bolt 5 is inserted. The steel foundation 2 is fastened onto the concrete foundation 3 by fastening the lower flange 2b to the upper surface of the concrete foundation 3 with the nut 7 screwed onto the concrete foundation 3. The anchor bolt 5 may be a hole-in anchor that is formed by making a hole in the upper surface of the concrete foundation 3. It is good also as the foundation 1 by omitting the concrete foundation 3 and installing the steel foundation 2 directly on the ground. When the foundation 1 is composed of the steel foundation 2 and the concrete foundation 3 as described above, the steel foundation 2 may be called a “base”.

  A column base joining plate 9 is provided at the lower end of the standing frame member 8 of the outer wall panel 4, and a bolt hole 10 is provided in the column base joining plate 9 as shown in FIG. 4. As shown in FIG. 5, the column base joining plate 9 is disposed on the steel base 2, and the bolt hole 11 (FIG. 3) provided in the upper flange 2 a of the steel base 2 and the column base joining plate 9. The column base joining plate 9 is joined on the steel base 2 by joining bolts 12 and 13 inserted between the bolt holes 10.

  As shown in FIG. 2, of the joining bolts 12 and 13, the joining bolt 13 inserted through the bolt hole 11 located on the building interior side of the upper flange 2 a of the steel base 2 has a thread groove cut over the entire length. It is a dimensioned bolt that is a bolt. The joining bolt 13 is inserted into a bolt hole 11 provided in the upper flange 2a of the steel base 2 so that the upper end protrudes above the upper flange 2a, and a plate 14a is formed on the lower surface of the joining bolt 13 on the lower surface. The provided support nut 14 is screwed together, and this support nut 14 is disposed on the upper surface of the lower flange 2 b of the steel base 2. Further, two lower nuts 15 are screwed onto the joining bolt 13 below the upper flange 2a of the steel base 2, and the two lower nuts 15 are attached to the lower surface of the upper flange 2a. Tighten to the pressed state. The upper one of the two lower nuts 15 is tightened back so as to be generally performed with a double nut, thereby preventing loosening by eliminating a gap between the thread grooves. Thereby, the joining bolt 13 is charged into the steel foundation 2.

  In consideration of workability and safety in building a scaffolding in the building interior, after the construction work in the building is loaded with the joining bolt 13 into the steel foundation 2 as shown in FIG. It is performed prior to the joining work on the steel foundation 2. In this earth work, the earth and sand 17 is backfilled after installing a plate-like earth and earth stop member 16 extending between the upper and lower flanges 2a and 2b on the building base side of the steel foundation 2.

  In the joining operation of the outer wall panel 4, by inserting the upper end of the joining bolt 13 protruding above the upper flange 2a of the steel base 2 into the corresponding bolt hole 10 (FIG. 4) of the column base joining plate 9, The column base joining plate 9 is disposed on the upper flange 2a. Next, as shown in FIG. 5, two upper nuts 18 are screwed onto the upper ends of the joining bolts 13 protruding above the column base joining plate 9. In this way, the upper nut 18 is prevented from loosening by fastening the column base joining plate 9 onto the steel foundation 2 with the two upper nuts 18. At this time, the joint bolt 13 is loaded between the upper and lower flanges 2a and 2b of the steel base 2 by the support nut 14 and the two lower nuts 15 as described above. Does not occur. Also about the outer part of the column base joining plate 9, the bolt hole 11 located on the building side of the upper flange 2a extends from the lower side of the upper flange 2a across the bolt hole 10 of the column base joining plate 9 aligned therewith. The joining bolts 12 are inserted, and the two upper nuts 18 are screwed into the joining bolts 12 protruding above the column base joining plate 9. Thereby, the column base joining plate 9 is reliably fastened on the steel foundation 2. As a result, as in the conventional case, there is no return to the groundwork construction in the building, and the construction period can be shortened.

  In addition, when dismantling to transfer a steel building constructed in this way, the outer wall panel 4 is dismantled prior to the soil dismantling, but when the outer wall panel 4 is dismantled, It is not possible to take preventive measures such as pressing the bolt head. However, in this case as well, since the joining bolt 13 is loaded into the steel base 2 by the mounting structure described above, when the upper nut 18 screwed to the upper end of the joining bolt 13 is loosened, the joining bolt 13 is shared. The dismantling work can be easily performed without rotating.

  FIGS. 6 to 10 show an embodiment of a method for constructing the soil concrete 20 (FIG. 8) using the steel foundation 2 mounting structure of the joining bolt 13 for joining the outer wall panel 4 and the steel foundation 2 described above. Indicates. In this construction, as shown in FIG. 2, the joining bolt 13 is charged into the steel foundation 2 and the outer wall panel 4 is not yet constructed, and the joining is first protruded from the upper flange 2a of the steel foundation 2. As shown in FIG. 6, a mold supporting metal 21 having a bolt hole (not shown) is attached to the upper end of the bolt 13. Here, a section of angle steel is used as the metal mold support 21, and the nut 23 is screwed together after being inserted into the upper end of the joint bolt 13 together with the seat plate 22 having a bolt hole (not shown). Then, the mold support metal fitting 21 is fastened on the steel foundation 2 in such a posture that the standing piece 21a faces the building. Note that the seat plate 22 is not necessarily provided.

  On the upper surface of the steel foundation 2, a small earth concrete stop mold 24 is disposed along the longitudinal direction. The crevice-concave concrete retaining mold 24 includes a column-shaped portion concrete retaining mold 24A for forming a column-shaped avoiding recess 20a in the soil-concrete 20 (FIG. 10) that avoids the standing frame material 8 of the outer wall panel 4, and a soil-concrete 20 The flat part concrete stop mold 24B for forming the other part of the small edge.

  As shown by a chain line in FIG. 7, the column mold portion concrete retaining mold frame 24 </ b> A is made of a plate member having a horizontal cross section, and a main surface portion 24 </ b> Aa that forms a step with respect to the flange-shaped surface portion 24 </ b> Ab on both sides thereof It attaches on the steel foundation 2 so that it may be located in the building side along the standing piece 21a of the support hardware 21. FIG.

As shown in FIG. 9, the flat portion concrete retaining mold 24B is made of a plate member having an L-shaped rough cross section, and the longitudinal end portion of the vertical surface portion 24Ba is formed on the columnar portion concrete retaining mold 24A. It is attached on the steel base 2 in a state of being overlapped with the flange-like surface portion 24Ab. A downward-facing engagement piece 24Bc is formed at the front end of the horizontal surface portion 24Bb of the flat concrete retaining mold 24B, and this engagement piece 24Bc engages with the end of the upper flange 2a of the steel base 2 on the building side.
When attaching the flat concrete retaining mold 24B, a pressing jig 25 having an L-shaped longitudinal section is installed on the steel base 2 as shown in FIG. The vertical piece 25a of the tool 25 is pressed against the vertical surface portion 24Ba of the flat concrete retaining mold frame 24B from the outdoor side of the building. The pressing jig 25 is mounted on the steel foundation 2 by sandwiching the horizontal piece 25b together with the upper flange 2a of the steel foundation 2 with a clip 26 from the outdoor side of the building.

  In this manner, the concrete 20 is formed by placing concrete in the mold in a state where the clay small concrete retaining mold 24 is disposed on the steel foundation 2. The column-shaped part concrete retaining mold 24A is left as it is after the earth concrete 20 is formed. FIG. 10 shows a perspective view of the column type avoiding recess 20a formed at the edge of the soil concrete 20, and the column type part concrete retaining mold 24A is left as shown in FIG.

  Thereafter, the outer wall panel 4 can be mounted on the steel foundation 2 by removing the mold supporting metal 21 and the seat plate 22 from the upper end of the joining bolt 13 by the construction shown in FIGS. .

  Thus, according to the above-mentioned soil concrete construction method, the joining bolt 13 prepared in the steel foundation 2 for joining the outer wall panel 4 on the steel foundation 2 can be used also as a jig for mounting the formwork. Therefore, soil concrete construction can be easily performed without using many jigs.

It is a perspective view which shows the state in the middle of the construction of the steel building to which this invention is applied. In cross-sectional view showing a state before the outer wall panel joint of the mounting structure of the outer wall panels and the steel basis between fastening bolt used in the outer wall panel earth floor concrete construction method of a steel foundation using buildings that written to an embodiment of the present invention is there. It is a perspective view which shows the steel foundations before outer wall panel joining. It is a perspective view which shows the state in the middle of the joining operation | work of an outer wall panel. It is sectional drawing which shows the state which joined the outer wall panel to the steel-material foundation. It is a perspective view which shows the state which attached the metal support for formwork on the steel foundation before joining panel joining. It is a perspective view which shows the state which attached the column-shaped part concrete stop form of the small-diameter small concrete stop form on the steel foundation. It is sectional drawing which shows the state which attached the earthwork small concrete stop form on the steel foundation, and cast the earthwork concrete. It is a perspective view which shows the state which attached the flat part concrete stop form among the small-diameter small concrete stop forms on the steel foundation. It is a perspective view which shows the state by which the column-shaped part concrete stop form was left on the steel foundation after earthen concrete placement. It is explanatory drawing of the prior art example of the construction which joins an outer wall panel on a steel foundation. It is a perspective view which shows the attachment structure of the outer wall panel on the steel foundation by the construction. It is explanatory drawing of the proposal example of the construction which joins an outer wall panel on a steel foundation.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Foundation 2 ... Steel foundation 2a ... Upper flange 2b ... Lower flange 4 ... Outer wall panel 8 ... Standing frame material 9 of outer wall panel ... Column base joining plate 12, 13 ... Joining bolt 14 ... Support nut 14a ... Plate of support nut DESCRIPTION OF SYMBOLS 15 ... Lower nut 18 ... Upper nut 20 ... Dough concrete 21 ... Moldwork support hardware 24 ... Dust small concrete stop formwork 24A ... Column form part concrete stop formwork

Claims (1)

A dirt floor concrete construction method using a mounting structure of the outer wall panels and the steel basis between fastening bolt,
The mounting structure of the outer wall panel and steel foundation joint bolt is as follows:
A column base joining plate provided at the lower end of the standing frame material of the outer wall panel is arranged on a steel foundation made of shaped steel having upper and lower flanges, and provided on the upper flange of the steel base and the column base joining plate. A connecting bolt mounting structure for joining by means of a joining bolt inserted between the bolt holes formed, and
The joining bolt is a cut bolt, and the joining bolt is inserted into the bolt hole provided in the upper flange of the steel base so that the upper end protrudes above the upper flange, and the lower end of the joining bolt A support nut provided with a plate is screwed, and this support nut is arranged on the upper surface of the lower flange of the steel base, and two lower nuts are screwed to the joining bolt below the upper flange. Let these two lower nuts be pressed against the lower surface of the upper flange.
The construction process of earth floor concrete, above Symbol fastening bolt is mounted with the support nut and the lower nut to the steel foundation and the external wall panels is not yet construction state, on the steel basis of the fastening bolt A pillar type that attaches a metal support for the formwork to the part protruding from the flange, and avoids the standing frame material of the outer wall panel among the earthen small concrete fixed formwork arranged along the longitudinal direction on the upper surface of the steel base The concrete construction of the building using the outer wall panel and the steel foundation characterized in that the concrete mold for supporting the pillar mold part to form the concave part in the concrete in the avoidance is attached to the above-mentioned hardware for supporting the formwork, and the concrete is cast in the soil. Method.

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