Set of column base anchor structures

Abstract

To provide a column base anchor structure that enables judgment at sites on whether or not a form plate comprising the column base anchor structure was selected at the time of design.SOLUTION: A column base anchor structure 1 includes a form plate selected from among a plurality of form plates whose specifications are specified by a standard, and a frame for supporting the form plate, while a frame 2 includes a pair of supporting parts 221 having a protrusion 222 formed on a top surface thereof, and a lower form plate 31 includes a pair of supported parts 312. The standard specifies the interval at inner ends of the pair of supported parts 312 of the lower form plate 31 to increase in steps, and includes a specification that specifies the interval between the supported parts 312 to be a first interval, a specification that specifies the interval to be a second interval larger than the first interval by a step, and a specification that specifies the interval to be a third interval larger than the second interval by a step. Here, an interval at outer ends of the protrusions 222 formed on the pair of support parts 221 is larger than or equal to the first interval and smaller than or equal to the second interval, while an interval at outer ends of the pair of supporting parts 221 is larger than or equal to the second interval and smaller than or equal to the third interval.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a column base anchor structure, a mounting base, and a method for designing a column base anchor structure. [Background technology]

[0002] Conventionally, a column base anchor structure for installing a column base for a building on concrete poured on the ground has been known (for example, Patent Document 1). The column base anchor structure is a structure for fixing a base plate joined to a column of a building to the foundation concrete.

[0003] The column base anchor structure is composed of a base that is placed on the leveled concrete, a form plate that is installed on the base, and anchor bolts for fixing the base plate to the foundation concrete.

[0004] The specifications of the frame and the form plate are determined in advance by standards, and are selected according to the specifications of the type and size of the base plate. Moreover, these parts constituting the column base anchor structure are generally assembled at the construction site. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2018-53563 A Summary of the Invention [Problem to be solved by the invention]

[0006] If a form plate different from the one selected at the time of design is mistakenly delivered to the construction site, there is a risk that the form plate will be attached to the frame without being noticed at the construction site. If a form plate different from the one selected at the time of design is attached to the frame, the position of the anchor bolt of the column base anchor structure will not match the position of the bolt hole formed in the base plate, and therefore the base plate cannot be fixed to the foundation concrete with the anchor bolt.

[0007] An object of the present invention is to provide a column base anchor structure, a stand, and a design method for a column base anchor structure that make it possible to determine at the manufacturing site whether or not the form plate that constitutes the column base anchor structure is the one selected at the time of design. [Means for solving the problem]

[0008] The invention according to claim 1 is A first specification form plate (e.g., lower form plate 31A for 500 in FIG. 6) having a pair of supported parts and a distance (b in FIG. 6) between the inner ends of the supported parts set to a first supported part inner end distance (e.g., 500 mm in FIG. 6); a first specification rack (e.g., rack 2A for 500 in FIG. 7) having a pair of support parts supporting the supported parts of the first specification form plate, the distance between the inner ends of the support parts (d in FIG. 7) being set to a first support part inner end distance (e.g., 400 mm in FIG. 7) smaller than the first supported part inner end distance (e.g., 500 mm in FIG. 6), the distance between the outer ends (c in FIG. 7) being set to a first support part outer end distance (e.g., 540 mm in FIG. 7) larger than the first supported part inner end distance (e.g., 500 mm in FIG. 6), and having protrusions provided on the upper surfaces of the support parts, the distance between the outer ends of the protrusions (f in FIG. 7) being set to a first protrusion outer end distance (e.g., 490 mm in FIG. 7) smaller than the first supported part inner end distance (e.g., 500 mm in FIG. 6); A first specification column base anchor structure comprising: A second specification form plate (e.g., lower form plate 31B for 550 in FIG. 6) having a pair of supported parts and a distance (b in FIG. 6) between the inner ends of the supported parts set to a second supported part inner end distance (e.g., 550 mm in FIG. 6) that is one step larger than the first supported part inner end distance (e.g., 500 mm in FIG. 6); a second specification rack (e.g., rack 2B for 550 in FIG. 7) having a pair of support parts supporting the supported parts of the second specification form plate, the distance between the inner ends of the support parts (d in FIG. 7) being set to a second support part inner end distance (e.g., 450 mm in FIG. 7) smaller than the second supported part inner end distance (e.g., 550 mm in FIG. 6) and the distance between the outer ends (c in FIG. 7) being set to a second support part outer end distance (e.g., 590 mm in FIG. 7) larger than the second supported part inner end distance (e.g., 550 mm in FIG. 6), and having protrusions provided on the upper surfaces of the support parts, the distance between the outer ends of the protrusions (f in FIG. 7) being set to a second protrusion outer end distance (e.g., 540 mm in FIG. 7) smaller than the second supported part inner end distance (e.g., 550 mm in FIG. 6); A second specification column base anchor structure comprising: a third specification form plate (e.g., lower form plate 31c for 600 in FIG. 6) having a pair of supported parts and in which the distance between the inner ends of the supported parts (b in FIG. 6) is set to a third supported part inner end distance (e.g., 600 mm in FIG. 6) that is one step larger than the second supported part inner end distance (e.g., 550 mm in FIG. 6); a third specification rack (e.g., rack 2C for 600 in FIG. 7) having a pair of support parts supporting the supported parts of the third specification form plate, the distance between the inner ends of the support parts (d in FIG. 7) being set to a third support part inner end distance (e.g., 500 mm in FIG. 7) smaller than the third supported part inner end distance (e.g., 600 mm in FIG. 6), the distance between the outer ends (c in FIG. 7) being set to a third support part outer end distance (e.g., 640 mm in FIG. 7) larger than the third supported part inner end distance (e.g., 600 mm in FIG. 6), and having protrusions provided on the upper surfaces of the support parts, the distance between the outer ends of the protrusions (f in FIG. 7) being set to a third protrusion outer end distance (e.g., 590 mm in FIG. 7) smaller than the third supported part inner end distance (e.g., 600 mm in FIG. 6); A third specification column base anchor structure comprising: A set of column base anchor structures comprising: The distance between the inner ends of the first supported portions (e.g., 500 mm in FIG. 6) is equal to or less than the distance between the outer ends of the second protruding portions (e.g., 540 mm in FIG. 7); The second supported portion inner end interval (e.g., 550 mm in FIG. 6) is equal to or less than the third protruding portion outer end interval (e.g., 590 mm in FIG. 7); The second supported portion inner end interval (e.g., 550 mm in FIG. 6) is greater than the first supported portion outer end interval (e.g., 540 mm in FIG. 7); The third supported portion inner end interval (e.g., 600 mm in FIG. 6) is greater than the second supported portion outer end interval (e.g., 590 mm in FIG. 7). A column base anchor structure set, It is. The invention according to claim 2 is as follows: A first specification form plate (e.g., lower form plate 31A for 500 in FIG. 6) having a pair of supported parts and a distance (b in FIG. 6) between the inner ends of the supported parts set to a first supported part inner end distance (e.g., 500 mm in FIG. 6); a first specification rack (e.g., rack 2A for 500 in FIG. 7) having a pair of support parts supporting the supported parts of the first specification form plate, the distance between the inner ends of the support parts (d in FIG. 7) being set to a first support part inner end distance (e.g., 400 mm in FIG. 7) smaller than the first supported part inner end distance (e.g., 500 mm in FIG. 6), the distance between the outer ends (c in FIG. 7) being set to a first support part outer end distance (e.g., 540 mm in FIG. 7) larger than the first supported part inner end distance (e.g., 500 mm in FIG. 6), and having protrusions provided on the upper surfaces of the support parts, the distance between the outer ends of the protrusions (f in FIG. 7) being set to a first protrusion outer end distance (e.g., 490 mm in FIG. 7) smaller than the first supported part inner end distance (e.g., 500 mm in FIG. 6); A first specification column base anchor structure comprising: A second specification form plate (e.g., lower form plate 31B for 550 in FIG. 6) having a pair of supported parts and a distance (b in FIG. 6) between the inner ends of the supported parts set to a second supported part inner end distance (e.g., 550 mm in FIG. 6) that is one step larger than the first supported part inner end distance (e.g., 500 mm in FIG. 6); a second specification rack (e.g., rack 2B for 550 in FIG. 7) having a pair of support parts supporting the supported parts of the second specification form plate, the distance between the inner ends of the support parts (d in FIG. 7) being set to a second support part inner end distance (e.g., 450 mm in FIG. 7) smaller than the second supported part inner end distance (e.g., 550 mm in FIG. 6) and the distance between the outer ends (c in FIG. 7) being set to a second support part outer end distance (e.g., 590 mm in FIG. 7) larger than the second supported part inner end distance (e.g., 550 mm in FIG. 6), and having protrusions provided on the upper surfaces of the support parts, the distance between the outer ends of the protrusions (f in FIG. 7) being set to a second protrusion outer end distance (e.g., 540 mm in FIG. 7) smaller than the second supported part inner end distance (e.g., 550 mm in FIG. 6); A second specification column base anchor structure comprising: A set of column base anchor structures comprising: The distance between the inner ends of the first supported portions (e.g., 500 mm in FIG. 6) is equal to or less than the distance between the outer ends of the second protruding portions (e.g., 540 mm in FIG. 7); The distance between the inner ends of the second supported parts (e.g., 550 mm in FIG. 6) is greater than the distance between the outer ends of the first supported parts (e.g., 540 mm in FIG. 7). A column base anchor structure set, It is. The invention of claim 3 is a set of column base anchor structures according to claim 1 or claim 2, wherein the first specification stand has a vertically arranged pillar and a jig connecting an upper end of the pillar and the support part, and the convex part is a part extending from the jig to an upper surface of the support part. The invention of claim 4 is a set of column base anchor structures according to claim 1 or claim 2, wherein the second specification stand has a vertically arranged pillar and a jig connecting an upper end of the pillar and the support part, and the convex part is a part extending from the jig to an upper surface of the support part. The invention of claim 5 is a set of column base anchor structures according to claim 1, wherein the third specification stand has a vertically arranged pillar and a jig connecting an upper end of the pillar and the support part, and the convex part is a part extending from the jig to an upper surface of the support part. Another invention may be as follows. Means 1 teeth, A first specification form plate (e.g., lower form plate 31A for 500 in FIG. 6) having a pair of supported parts and a distance (b in FIG. 6) between the inner ends of the supported parts set to a first supported part inner end distance (e.g., 500 mm in FIG. 6); a first specification rack (e.g., rack 2A for 500 in FIG. 7) having a pair of support parts supporting the supported parts of the first specification form plate, the distance between the inner ends of the support parts (d in FIG. 7) being set to a first support part inner end distance (e.g., 400 mm in FIG. 7) smaller than the first supported part inner end distance (e.g., 500 mm in FIG. 6), the distance between the outer ends (c in FIG. 7) being set to a first support part outer end distance (e.g., 540 mm in FIG. 7) larger than the first supported part inner end distance (e.g., 500 mm in FIG. 6), and having protrusions provided on the upper surfaces of the support parts, the distance between the outer ends of the protrusions (f in FIG. 7) being set to a first protrusion outer end distance (e.g., 490 mm in FIG. 7) smaller than the first supported part inner end distance (e.g., 500 mm in FIG. 6); A first specification column base anchor structure comprising: A second specification form plate (e.g., lower form plate 31B for 550 in FIG. 6) having a pair of supported parts and a distance (b in FIG. 6) between the inner ends of the supported parts set to a second supported part inner end distance (e.g., 550 mm in FIG. 6) that is one step larger than the first supported part inner end distance (e.g., 500 mm in FIG. 6); a second specification rack (e.g., rack 2B for 550 in FIG. 7) having a pair of support parts supporting the supported parts of the second specification form plate, the distance between the inner ends of the support parts (d in FIG. 7) being set to a second support part inner end distance (e.g., 450 mm in FIG. 7) smaller than the second supported part inner end distance (e.g., 550 mm in FIG. 6) and the distance between the outer ends (c in FIG. 7) being set to a second support part outer end distance (e.g., 590 mm in FIG. 7) larger than the second supported part inner end distance (e.g., 550 mm in FIG. 6), and having protrusions provided on the upper surfaces of the support parts, the distance between the outer ends of the protrusions (f in FIG. 7) being set to a second protrusion outer end distance (e.g., 540 mm in FIG. 7) smaller than the second supported part inner end distance (e.g., 550 mm in FIG. 6); A second specification column base anchor structure comprising: a third specification form plate (e.g., lower form plate 31c for 600 in FIG. 6) having a pair of supported parts and in which the distance between the inner ends of the supported parts (b in FIG. 6) is set to a third supported part inner end distance (e.g., 600 mm in FIG. 6) that is one step larger than the second supported part inner end distance (e.g., 550 mm in FIG. 6); a third specification rack (e.g., rack 2C for 600 in FIG. 7) having a pair of support parts supporting the supported parts of the third specification form plate, the distance between the inner ends of the support parts (d in FIG. 7) being set to a third support part inner end distance (e.g., 500 mm in FIG. 7) smaller than the third supported part inner end distance (e.g., 600 mm in FIG. 6), the distance between the outer ends (c in FIG. 7) being set to a third support part outer end distance (e.g., 640 mm in FIG. 7) larger than the third supported part inner end distance (e.g., 600 mm in FIG. 6), and having protrusions provided on the upper surfaces of the support parts, the distance between the outer ends of the protrusions (f in FIG. 7) being set to a third protrusion outer end distance (e.g., 590 mm in FIG. 7) smaller than the third supported part inner end distance (e.g., 600 mm in FIG. 6); A third specification column base anchor structure comprising: A set of column base anchor structures comprising: The distance between the inner ends of the first supported portions (e.g., 500 mm in FIG. 6) is equal to or less than the distance between the outer ends of the second protruding portions (e.g., 540 mm in FIG. 7); The second supported portion inner end interval (e.g., 550 mm in FIG. 6) is equal to or smaller than the third protruding portion outer end interval (e.g., 590 mm in FIG. 7), The second supported portion inner end interval (e.g., 550 mm in FIG. 6) is greater than the first supported portion outer end interval (e.g., 540 mm in FIG. 7); The third supported portion inner end interval (e.g., 600 mm in FIG. 6) is greater than the second supported portion outer end interval (e.g., 590 mm in FIG. 7). A column base anchor structure set, It is. Means 2 teeth, A first specification form plate (e.g., lower form plate 31A for 500 in FIG. 6) having a pair of supported parts and a distance (b in FIG. 6) between the inner ends of the supported parts set to a first supported part inner end distance (e.g., 500 mm in FIG. 6); a first specification rack (e.g., rack 2A for 500 in FIG. 7) having a pair of support parts supporting the supported parts of the first specification form plate, the distance between the inner ends of the support parts (d in FIG. 7) being set to a first support part inner end distance (e.g., 400 mm in FIG. 7) smaller than the first supported part inner end distance (e.g., 500 mm in FIG. 6), the distance between the outer ends (c in FIG. 7) being set to a first support part outer end distance (e.g., 540 mm in FIG. 7) larger than the first supported part inner end distance (e.g., 500 mm in FIG. 6), and having protrusions provided on the upper surfaces of the support parts, the distance between the outer ends of the protrusions (f in FIG. 7) being set to a first protrusion outer end distance (e.g., 490 mm in FIG. 7) smaller than the first supported part inner end distance (e.g., 500 mm in FIG. 6); A first specification column base anchor structure comprising: A second specification form plate (e.g., lower form plate 31B for 550 in FIG. 6) having a pair of supported parts and a distance (b in FIG. 6) between the inner ends of the supported parts set to a second supported part inner end distance (e.g., 550 mm in FIG. 6) that is one step larger than the first supported part inner end distance (e.g., 500 mm in FIG. 6); a second specification rack (e.g., rack 2B for 550 in FIG. 7) having a pair of support parts supporting the supported parts of the second specification form plate, the distance between the inner ends of the support parts (d in FIG. 7) being set to a second support part inner end distance (e.g., 450 mm in FIG. 7) smaller than the second supported part inner end distance (e.g., 550 mm in FIG. 6) and the distance between the outer ends (c in FIG. 7) being set to a second support part outer end distance (e.g., 590 mm in FIG. 7) larger than the second supported part inner end distance (e.g., 550 mm in FIG. 6), and having protrusions provided on the upper surfaces of the support parts, the distance between the outer ends of the protrusions (f in FIG. 7) being set to a second protrusion outer end distance (e.g., 540 mm in FIG. 7) smaller than the second supported part inner end distance (e.g., 550 mm in FIG. 6); A second specification column base anchor structure comprising: A set of column base anchor structures comprising: The distance between the inner ends of the first supported portions (e.g., 500 mm in FIG. 6) is equal to or less than the distance between the outer ends of the second protruding portions (e.g., 540 mm in FIG. 7); The distance between the inner ends of the second supported parts (e.g., 550 mm in FIG. 6) is greater than the distance between the outer ends of the first supported parts (e.g., 540 mm in FIG. 7). A column base anchor structure set, It is. Means 3 teeth, A first specification form plate (e.g., lower form plate 31A for 500 in FIG. 6) having a pair of supported parts and a distance (b in FIG. 6) between the inner ends of the supported parts set to a first supported part inner end distance (e.g., 500 mm in FIG. 6); a first specification rack (e.g., rack 2A for 500 in FIG. 7) having a pair of support parts supporting the supported parts of the first specification form plate, the distance between the inner ends of the support parts (d in FIG. 7) being set to a first support part inner end distance (e.g., 400 mm in FIG. 7) smaller than the first supported part inner end distance (e.g., 500 mm in FIG. 6), the distance between the outer ends (c in FIG. 7) being set to a first support part outer end distance (e.g., 540 mm in FIG. 7) larger than the first supported part inner end distance (e.g., 500 mm in FIG. 6), and having protrusions provided on the upper surfaces of the support parts, the distance between the outer ends of the protrusions (f in FIG. 7) being set to a first protrusion outer end distance (e.g., 490 mm in FIG. 7) smaller than the first supported part inner end distance (e.g., 500 mm in FIG. 6); A first specification column base anchor structure comprising: A second specification form plate (e.g., lower form plate 31B for 550 in FIG. 6) having a pair of supported parts and a distance (b in FIG. 6) between the inner ends of the supported parts set to a second supported part inner end distance (e.g., 550 mm in FIG. 6) that is one step larger than the first supported part inner end distance (e.g., 500 mm in FIG. 6); a second specification rack (e.g., rack 2B for 550 in FIG. 7) having a pair of support parts supporting the supported parts of the second specification form plate, the distance between the inner ends of the support parts (d in FIG. 7) being set to a second support part inner end distance (e.g., 450 mm in FIG. 7) smaller than the second supported part inner end distance (e.g., 550 mm in FIG. 6) and the distance between the outer ends (c in FIG. 7) being set to a second support part outer end distance (e.g., 590 mm in FIG. 7) larger than the second supported part inner end distance (e.g., 550 mm in FIG. 6), and having protrusions provided on the upper surfaces of the support parts, the distance between the outer ends of the protrusions (f in FIG. 7) being set to a second protrusion outer end distance (e.g., 540 mm in FIG. 7) smaller than the second supported part inner end distance (e.g., 550 mm in FIG. 6); A second specification column base anchor structure comprising: A set of column base anchor structures comprising: The distance between the inner ends of the first supported portions (e.g., 500 mm in FIG. 6) is equal to or less than the distance between the outer ends of the second protruding portions (e.g., 540 mm in FIG. 7). A column base anchor structure set, It is. Means 4 teeth, A first specification form plate (e.g., lower form plate 31A for 500 in FIG. 6) having a pair of supported parts and a distance (b in FIG. 6) between the inner ends of the supported parts set to a first supported part inner end distance (e.g., 500 mm in FIG. 6); a first specification rack (e.g., rack 2A for 500 in FIG. 7) having a pair of support parts supporting the supported parts of the first specification form plate, the distance between the inner ends of the support parts (d in FIG. 7) being set to a first support part inner end distance (e.g., 400 mm in FIG. 7) smaller than the first supported part inner end distance (e.g., 500 mm in FIG. 6), the distance between the outer ends (c in FIG. 7) being set to a first support part outer end distance (e.g., 540 mm in FIG. 7) larger than the first supported part inner end distance (e.g., 500 mm in FIG. 6), and having protrusions provided on the upper surfaces of the support parts, the distance between the outer ends of the protrusions (f in FIG. 7) being set to a first protrusion outer end distance (e.g., 490 mm in FIG. 7) smaller than the first supported part inner end distance (e.g., 500 mm in FIG. 6); A first specification column base anchor structure comprising: A second specification form plate (e.g., lower form plate 31B for 550 in FIG. 6) having a pair of supported parts and a distance (b in FIG. 6) between the inner ends of the supported parts set to a second supported part inner end distance (e.g., 550 mm in FIG. 6) that is one step larger than the first supported part inner end distance (e.g., 500 mm in FIG. 6); a second specification rack (e.g., rack 2B for 550 in FIG. 7) having a pair of support parts supporting the supported parts of the second specification form plate, the distance between the inner ends of the support parts (d in FIG. 7) being set to a second support part inner end distance (e.g., 450 mm in FIG. 7) smaller than the second supported part inner end distance (e.g., 550 mm in FIG. 6) and the distance between the outer ends (c in FIG. 7) being set to a second support part outer end distance (e.g., 590 mm in FIG. 7) larger than the second supported part inner end distance (e.g., 550 mm in FIG. 6), and having protrusions provided on the upper surfaces of the support parts, the distance between the outer ends of the protrusions (f in FIG. 7) being set to a second protrusion outer end distance (e.g., 540 mm in FIG. 7) smaller than the second supported part inner end distance (e.g., 550 mm in FIG. 6); A second specification column base anchor structure comprising: A set of column base anchor structures comprising: The distance between the inner ends of the second supported parts (e.g., 550 mm in FIG. 6) is greater than the distance between the outer ends of the first supported parts (e.g., 540 mm in FIG. 7). A column base anchor structure set, It is. Means 5The first specification rack has a vertically arranged support and a jig that connects the upper end of the support and the support part, and the protrusion is a portion that extends from the jig to the upper surface of the support part. Any of means 1 to 4 2 is a set of column base anchor structures according to the embodiment of the present invention. Means 6 The second specification rack has a vertically arranged support and a jig that connects the upper end of the support and the support part, and the protrusion is a portion that extends from the jig to the upper surface of the support part. Any of means 1 to 4 2 is a set of column base anchor structures according to the embodiment of the present invention. Means 7 The third specification rack has a vertically arranged support and a jig that connects the upper end of the support and the support part, and the protrusion is a portion that extends from the jig to the upper surface of the support part. Means 1 2 is a set of column base anchor structures according to the embodiment of the present invention. Means 8 is a base for a column base anchor structure having a pair of supporting parts supporting a pair of supported parts of a form plate, the supporting parts having a convex part provided on an upper surface, the convex part being formed on the upper surface of the supporting part and being provided inwardly of a mounting part on which the supported parts are placed. Means 9 The stand has a vertically arranged support and a jig that connects the upper end of the support and the support part, and the protrusion is a portion that extends from the jig to the upper surface of the support part. Means 8 2 is a mounting base for the column base anchor structure according to the first embodiment. moreover Another invention may be the following. The column base anchor structure according to the present invention is a column base anchor structure comprising a form plate selected from a plurality of form plates whose specifications are defined by a standard, and a base supporting the form plate, wherein the base has a pair of support parts supporting the form plate, and convex parts are provided on the upper surfaces of the pair of support parts, and the form plate has a pair of supported parts supported by the pair of support parts, and the standard defines the specifications of the form plate so that the distance between the pair of supported parts increases in stages, including a specification in which the distance is a first distance, a specification in which the distance is a second distance that is one step larger than the first distance, and a specification in which the distance is a third distance that is one step larger than the second distance, and the distance between the outer ends of the convex parts provided on the pair of support parts is equal to or greater than the first distance and equal to or less than the second distance, and the distance between the outer ends of the pair of support parts is equal to or greater than the second distance and equal to or less than the third distance.

[0009] The stand of the present invention is a stand that supports a form plate selected from a plurality of form plates whose specifications are determined by a standard, and has a pair of support parts that support the form plate, and a convex part is provided on the upper surface of the pair of support parts, and the form plate has a pair of supported parts supported by the pair of support parts, and the standard determines the specifications of the form plate so that the distance between the pair of supported parts increases in stages, and includes a specification in which the distance is a first distance, a specification in which the distance is a second distance that is one step larger than the first distance, and a specification in which the distance is a third distance that is one step larger than the second distance, and the distance between the outer ends of the convex parts provided on the pair of support parts is greater than or equal to the first distance and less than the second distance, and the distance between the outer ends of the pair of support parts is greater than or equal to the second distance and less than the third distance.

[0010] The design method of a column base anchor structure according to the present invention is a design method of a column base anchor structure comprising: a form plate selected from a plurality of form plates whose specifications are defined by a standard; and a base supporting the form plate, wherein the base has a pair of supporting parts supporting the form plate, and convex parts are provided on upper surfaces of the pair of supporting parts; the form plate has a pair of supported parts supported by the pair of supporting parts; and the standard defines the specifications of the form plate so that the distance between the pair of supported parts increases in stages, including a specification in which the distance is a first distance, a specification in which the distance is a second distance that is one step larger than the first distance, and a specification in which the distance is a third distance that is one step larger than the second distance, and includes defining the distance between outer ends of the convex parts provided on the pair of supporting parts to be equal to or greater than the first distance and equal to or less than the second distance, and defining the distance between outer ends of the pair of supporting parts to be equal to or greater than the second distance and equal to or less than the third distance. Effect of the Invention

[0011] According to the present invention, it becomes possible to judge at the construction site whether the form plate constituting the column base anchor structure is the one selected at the time of design. In particular, in cases where the width of the support part is large as a result of the rigidity being required for the base and the member constituting the support part being selected with a large cross-sectional performance, it is possible to prevent this by placing a form plate with a small step interval on the base. [Brief description of the drawings]

[0012] [Figure 1] FIG. 1 is a perspective view of a column base anchor structure according to a first embodiment; [Diagram 2] 1A to 1C are diagrams illustrating the installation process of the column base anchor structure. [Diagram 3] 1A to 1C are diagrams illustrating the installation process of the column base anchor structure. [Figure 4] 1A to 1C are diagrams illustrating the installation process of the column base anchor structure. [Diagram 5] 1A to 1C are diagrams illustrating the installation process of the column base anchor structure. [Figure 6] FIG. 13 is a diagram illustrating an example of a form plate specification. [Figure 7]FIG. 2 is a diagram illustrating an example of specifications of a stand. [Figure 8] FIG. 2 is a plan view of the column base anchor structure. [Figure 9] FIG. 9 is a view taken along line AA in FIG. 8. [Figure 10] FIG. 2 is a plan view of the column base anchor structure. [Figure 11] FIG. 11 is a view taken along line BB in FIG. [Figure 12] FIG. 2 is a plan view of the column base anchor structure. [Figure 13] 13 is a view taken along the line CC in FIG. 12. [Figure 14] FIG. 13 is a diagram showing a base of the column base anchor structure according to the second embodiment; [Figure 15] FIG. [Figure 16] FIG. 13 is a plan view showing a column base anchor structure of the second embodiment. [Figure 17] FIG. 13 is a plan view showing a column base anchor structure of the second embodiment. [Figure 18] FIG. 13 is a plan view showing a column base anchor structure of the second embodiment. [Figure 19] FIG. 13 is a diagram showing another example of the jig. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] [First embodiment] A first embodiment of the present invention will be described below with reference to the drawings. It should be noted that the present invention is not limited to this embodiment.

[0014] [Outline of column base anchor structure] An overview of the column base anchor structure will be described.

[0015] Fig. 1 is a perspective view of a column base anchor structure. The column base anchor structure 1 is a structure for fixing a column of a building onto a concrete foundation. The column base anchor structure 1 includes a base 2 and an anchor frame 3.

[0016] The mounting base 2 is a member placed on the leveled concrete and supports the anchor frame 3. The mounting base 2 has a support pillar 21, a horizontal member 22, and a base 23.

[0017] The pillars 21 are members disposed perpendicular to the leveled concrete. The pillars 21 are made of steel materials such as angle irons that are long in the axial direction.

[0018] The horizontal member 22 is fixed to the upper end of the support columns 21 to connect the respective support columns 21. For the horizontal member 22, for example, a steel material such as an angle iron long in the material axial direction is used. The horizontal member 22 also has a support portion 221.

[0019] The support parts 221 are parts that protrude horizontally and away from each other from the upper ends of a pair of horizontal members 22 arranged parallel to each other. The upper surfaces of the pair of support parts 221 abut against the lower surface of the lower plate 31 to support the anchor frame 3.

[0020] In some cases, the width of the support part 221 may become large due to the need for rigidity of the frame 2 and the selection of a cross member 22 constituting the support part 221 with a large cross-sectional performance. In such a case, a form plate with a low step and small intervals may be placed on the frame 2. To prevent this, a protrusion 222 is provided on the support part 221.

[0021] The protrusion 222 is provided on the upper surface of the support portion 221. The protrusion 222 is used as a mark for determining whether the pedestal 2 and the anchor frame 3 correspond to each other as selected at the time of design. In addition, the protrusion 222 functions as a positioning member when the anchor frame 3 is placed on the support portion 221.

[0022] The protrusions 222 are, for example, plate members formed in a rectangular shape in a plan view. For example, two protrusions 222 are provided on each support portion 221.

[0023] In a state in which the anchor frame 3 is placed on the support portion 221, a welding allowance for joining the anchor frame 3 and the support portion 221 is secured on the upper surface of the support portion 221. This welding allowance will be described later.

[0024] The length of the support portion 221 in the longitudinal direction is determined so that when the anchor frame 3 is placed on the support portion 221, the portion of the anchor bolt 32 below the lower plate 31 does not interfere with the support portion 221. Specifically, the length of the support portion 221 in the longitudinal direction is shorter than the length of the cross member 22 in the longitudinal direction, and both ends are formed so as to be cut out.

[0025] The base 23 is a member fixed to the lower end of the support 21. The base 23 connects the respective support columns 21 at their lower end, and ensures the stability of the pedestal 2.

[0026] The anchor frame 3 is a member supported by the mounting base 2. The anchor frame 3 has a lower plate 31, anchor bolts 32, and nuts 33 and .

[0027] The lower plate 31 is a rectangular iron plate supported by the frame 2. The lower plate 31 has a rectangular opening 311 formed in the center. That is, the lower plate 31 is formed in a shape in which four supported parts 312, which are strip-shaped plate members, are connected in a frame shape. The lower plate 31 may be formed by joining a plurality of rectangular iron plates into a frame shape by welding or the like. The four supported parts 312 are supported by the four supporting parts 221 of the corresponding frame 2. Of the four supported parts 312, a pair of supported parts 312 facing each other with the opening 311 between them corresponds to a pair of supported parts of the present invention. The shape of the lower plate 31 and the shape of the opening 311 formed in the lower plate 31 are not limited to a rectangle, and may be another shape. For example, the pair of opposed supported parts 312 do not necessarily have to be arranged parallel to each other.

[0028] Holes (not shown) for anchor bolts 32 are formed at predetermined positions in the lower plate 31. These bolt holes are formed at positions corresponding to the bolt holes formed in the base plate 4. The lower plate 31 is joined to the upper surface of the frame 2 by, for example, welding.

[0029] The anchor bolts 32 are inserted into holes for the anchor bolts 32 formed in the lower plate 31 and fixed in place. The anchor bolts 32 are fixed to the lower plate 31 by fastening two nuts 33 with the lower plate 31 sandwiched between them.

[0030] The upper part of the anchor bolt 32 is inserted into the bolt hole of the base plate 4 . Then, the base plate 4 is fixed to the foundation concrete by tightening the nuts 34 onto the anchor bolts 32.

[0031] [Column base anchor structure installation process] Next, the process of installing the column base anchor structure 1 will be described with reference to Figs.

[0032] 2 to 5 are diagrams illustrating the installation process of the column base anchor structure 1. First, the base 2 is placed at an appropriate position on the leveled concrete 5 (see FIG. 2). Next, the assembled anchor frame 3 is placed on the base 2, and the base 2 and the lower plate 31 of the anchor frame 3 are joined by welding.

[0033] An upper form plate 35 for maintaining the posture of each anchor bolt 32 in a vertical state and for maintaining the pitch between each anchor bolt 32 is fixed by a nut 34 near the upper end of the anchor bolt 32. The shape of the upper form plate 35 may be the same as that of the lower form plate 31. Like the lower form plate 31, the upper form plate 35 may also be formed by joining a plurality of rectangular iron plates into a frame shape by welding or the like. Since the anchor bolts 32 are temporarily fixed using the upper form plate 35, the position of the anchor bolts 32 will not shift even if force is applied to the anchor bolts 32 from the concrete when the foundation concrete 6 is poured.

[0034] Next, the foundation concrete 6 that will become the foundation of the building is poured (see FIG. 3). The foundation concrete 6 is poured up to near the bottom surface of the upper plate 35. When the foundation concrete 6 is poured, most of the frame 2 and the anchor frame 3 are embedded in the foundation concrete 6.

[0035] Once the foundation concrete 6 has hardened, the upper plate 35 is removed (see FIG. 4).

[0036] Thereafter, the anchor bolts 32 exposed from the concrete foundation 6 are inserted into the bolt holes formed in the base plate 4, and the base plate 4 is installed on the concrete foundation 6 (see FIG. 5). Next, nuts 34 are tightened onto the anchor bolts 32, and the base plate 4 is fixed onto the concrete foundation 6.

[0037] Through these steps, the column base anchor structure 1 is installed on the concrete foundation 6, and the base plate 4 is fixed to the concrete foundation 6 by the column base anchor structure 1. Mortar may be injected between the base plate 4 and the concrete foundation 6.

[0038] [Specifications for column base anchor structure] Next, the specifications of the column base anchor structure 1 will be described.

[0039] The specifications of the mount 2 and the lower plate 31 that constitute the column base anchor structure 1 are determined in advance by a standard. Here, the specifications of the mount 2 and the lower plate 31 determine the dimensions of each part of the mount 2 and the lower plate 31. The standard includes multiple specifications for the mount 2 and the lower plate 31 in which the dimensions of each part are determined. Once the base plate 4 to be joined to the column is determined, the lower plate 31 and mount 2 that fit the base plate 4 are selected from multiple specifications determined by the standard.

[0040] FIG. 6 shows an example of the standard of the lower plate 31 of the column base anchor structure 1, and shows a part of the specifications (31A, 31B, 31C).

[0041] The lower form plate 31 is predetermined in stages according to the standard, such as a lower form plate 31A for 500×500, a lower form plate 31B for 550×550, and a lower form plate 31C for 600×600.

[0042] The 500x500 lower plate 31A has an outer dimension a of 780mm and an opening side length (i.e., the distance b between the inner ends of a pair of opposing supported parts) of 500mm. The 550x550 lower plate 31B has an outer dimension a of 830mm and an opening side length b of 550mm. The 600x600 lower plate 31C has an outer dimension a of 880mm and an opening side length b of 600mm.

[0043] That is, this standard specifies that the length b of one side of the opening of each lower plate 31 increases in increments of 50 mm. In other words, the standard specifies that the distance b between the inner ends of a pair of supported parts 312 opposed to each other across the opening 311 increases in stages.

[0044] FIG. 7 is an example of standards for the mount 2 of the column base anchor structure 1, showing some of the specifications (2A, 2B, 3C).

[0045] The mount 2 is predetermined in stages according to the standard, such as a mount 2A for 500×500, a mount 2B for 550×550, and a mount 2C for 600×600.

[0046] In the 500×500 stand 2A, the distance c between the outer ends of a pair of supporting parts 221 is 540 [mm], the distance d between the inner ends is 400 [mm], the width e of the supporting parts 221 is 70 [mm], the distance f between the outer ends of the convex parts 222 is 490 [mm], and the width g of the convex parts 222 is 45 [mm]. In the 550×550 stand 2B, the distance c between the outer ends of a pair of supporting parts 221 is 590 [mm], the distance d between the inner ends is 450 [mm], the width e of the supporting parts 221 is 70 [mm], the distance f between the outer ends of the convex parts 222 is 540 [mm], and the width g of the convex parts 222 is 45 [mm]. The 600 x 600 stand 2C has a spacing c of 640 mm between the outer ends of a pair of support parts 221, a spacing d of 500 mm between the inner ends, a width of support parts 221 of 70 mm, a spacing f of 590 mm between the outer ends of convex parts 222, and a width g of convex parts 222 of 45 mm.

[0047] Next, we will explain in order the cases where a lower form plate 31 (31B) of a corresponding appropriate specification is placed on a stand 2 (2B) of a specified specification, where a lower form plate 31 (31A) of a one step smaller specification is placed, and where a lower form plate 31 (31C) of a one step larger specification is placed.

[0048] FIG. 8 is a plan view of the column base anchor structure 1 in a state where a 550×550 lower plate 31B is placed on a 550×550 rack 2B, and FIG. 9 is a view taken along line AA in FIG.

[0049] The distance b between the inner ends of the pair of supported parts 312 of the lower plate 31B for 550×550 is 550 [mm], and the distance f between the outer ends of the convex parts 222 is 540 [mm]. Therefore, the gap between the outer end of each convex part 222 and the inner surface of the opening 311 of the lower plate 31B for 550×550 is 5 [mm]. In other words, a worker at the construction site can confirm that the appropriate lower plate 31B is placed on the frame 2B by confirming that the outer end of the convex part 222 fits exactly into the inner surface of the opening 311 of the lower plate 31. In addition, a welding allowance for joining the frame 2B and the lower plate 31B is secured on the upper surface of the support part 221, and the frame 2 and the lower plate 31B can be joined via the weld part 223. Each support part 221 supports the supported part 312 of the lower plate 31B with a width of 20 [mm].

[0050] FIG. 10 is a plan view of the column base anchor structure 1 in a state where a 500×500 lower plate 31A is placed on a 550×550 rack 2B, and FIG. 11 is a view taken along line BB in FIG.

[0051] The distance b between the inner ends of the pair of supported parts 312 of the lower plate 31A for 500×500 is 500 [mm], and the distance f between the outer ends of the protruding parts 222 is 540 [mm]. In other words, the lower plate 31A for 500×500 is placed on the protruding parts 222, resulting in an unstable state. In addition, a gap is created between the supporting part 221 and the supported part 312 by the protruding parts 222. Therefore, workers at the construction site can notice that an appropriate lower plate is not placed on the frame 2B. In particular, when the width of the supporting part 221 becomes large, a lower plate with a low step and a small interval specification can also be placed on the frame 2, but by providing the protruding parts 222 on the supporting parts 221, this can be prevented effectively.

[0052] FIG. 12 is a plan view of the column base anchor structure 1 in a state in which a 600×600 lower plate 31C is placed on a 550×550 rack 2B, and FIG. 13 is a view taken along the line CC in FIG. The distance c between the outer ends of the pair of supporting parts 221 of the 550×550 rack 2B is 590 [mm], and the distance b between the inner ends of the pair of supported parts 312 of the 600×600 lower plate 31C is 600 [mm]. In other words, the distance b between the inner ends of the pair of supported parts 312 is longer than the distance c between the outer ends of the supporting parts 221 of the rack 2B. Therefore, the lower plate 31C cannot be placed on the supporting parts 221 of the rack 2B. Therefore, the workers at the construction site can notice that the lower plate 31C is not suitable for the rack 2B.

[0053] As explained above, when the 500×500 frame 2A and the 500×500 lower plate 31A are combined, the lower plate 31A can be placed on the frame 2A, and the outer end of the protrusion 222 fits exactly on the inner side of the opening 311 of the 500×500 lower plate 31A. Therefore, workers at the construction site can confirm that the appropriate lower plate 31A is placed on the frame 2A. In addition, a welding allowance for joining the frame 2A and the lower plate 31A is secured on the upper surface of the support portion 221.

[0054] On the other hand, when the 500×500 rack 2A and the 550×550 lower plate 31B are combined, the distance b between the inner ends of the supported parts 312 is longer than the distance c between the outer ends of the pair of supporting parts 221. Therefore, the lower plate 31B cannot be placed on the rack 2A. Therefore, the workers at the construction site can notice that the lower plate 31B is not suitable for the rack 2A.

[0055] In addition, when the 600×600 frame 2C and the 600×600 lower plate 31C are combined, the lower plate 31C can be placed on the frame 2C, and the outer end of the protrusion 222 fits exactly on the inner surface of the opening 311 of the 600×600 lower plate 31C. Therefore, workers at the construction site can confirm that the appropriate lower plate 31C is placed on the frame 2C. In addition, a welding allowance for joining the frame 2C and the lower plate 31C is secured on the upper surface of the support portion 221.

[0056] On the other hand, when the 600×600 rack 2C and the 550×550 lower plate 31B are combined, the 550×550 lower plate 31B is placed on the protruding portion 222, resulting in an unstable state. In addition, the protruding portion 222 creates a gap between the supporting portion 221 and the supported portion 312. Therefore, workers at the construction site can notice that the lower plate 31B is not suitable for the rack 2C.

[0057] As described above, in the first embodiment of the present invention, the specifications of the anchor frame 3 and the mount 2 are predefined by standard so that an appropriate anchor frame 3 and mount 2 can be selected according to the specifications of the base plate 4. Furthermore, in this standard, each dimension is predefined so that mounts 2 and anchor frames 3 with different specifications are not compatible with each other.

[0058] In particular, when the width e of the support portion 221 of the gantry 2 is relatively large, conventionally, a lower plate 31 that does not match the specifications of the gantry 2 may be placed on the gantry 2, and the gantry 2 and the lower plate 31 may be welded together. However, in this embodiment, a protrusion 222 is provided on the support portion 221. Therefore, it is possible to prevent the gantry 2 and the anchor frame 3 having different specifications from being assembled erroneously.

[0059] In this embodiment, the shape of the lower plate 31 is a frame having two pairs of opposing supported parts and an opening 311, but it may be configured with only one pair of opposing supported parts. In this case, there is only one pair of opposing supported parts and no pair of supported parts perpendicular to the pair are provided, so there is no opening. Correspondingly, the horizontal member of the frame may be configured in the same way.

[0060] [Second embodiment] Next, a column base anchor structure 1 according to a second embodiment of the present invention will be described. The column base anchor structure 1 according to the second embodiment differs from the first embodiment in the configuration of the mount. The specifications of the lower form plate and the mount are the same as those of the first embodiment shown in Figs. 6 and 7.

[0061] 14 is a diagram showing the mount 7 of the column base anchor structure 1 of the second embodiment. The mount 7 has a support 71, a horizontal member 72, and a jig 73.

[0062] The pillars 71 are members disposed perpendicular to the leveling concrete 5 (see FIG. 2). The pillars 71 are made of steel materials such as angle irons that are long in the axial direction.

[0063] The horizontal member 72 is a member on which the lower plate 31 is placed. For the horizontal member 72, a steel material such as an angle iron that is long in the material axial direction is used. In addition, both ends of the horizontal member 72 are joined to a jig 73 and supported by the jig 73. In addition, the horizontal member 72 has a support portion 721.

[0064] The support parts 721 are parts that protrude horizontally and away from each other from the upper ends of a pair of horizontal members 72 arranged parallel to each other. The upper surfaces of the pair of support parts 721 abut against the lower surface of the lower plate 31 to support the anchor frame 3.

[0065] The jig 73 is a member that is joined to the upper end of the support 71 and supports the cross member 72. The jig 73 is formed by bending a strip-shaped plate member into a stepped shape.

[0066] 15 is a perspective view showing the structure of the jig 73. The jig 73 has an angled portion 731, a protruding portion 732, a horizontal member support portion 733, and a lip 734.

[0067] The angled portion 731 is located in the center of the jig 73 and is formed in a angle shape. The outer surface of the angled portion 731 is joined to the inner surface of the support 71.

[0068] The protruding portion 732 is a portion having one end extending from the end of the mountain-shaped portion 731, and is formed by bending the mountain-shaped portion 731 outward at an angle of 90°. This protruding portion 732 is provided in order to position the horizontal member 72 outward from the support pillar 71. In other words, by changing the length of the protruding portion 732, the relative position of the support pillar 71 with respect to the horizontal member 72 can be changed.

[0069] The horizontal member support portion 733 is a portion extending from the other end of the protruding portion 732, and is formed by bending from the protruding portion 732 in the longitudinal direction of the horizontal member 72. The horizontal member support portion 733 is connected to an end portion of the horizontal member 72.

[0070] The lip 734 is formed by bending the portion extending upward near the end of the horizontal member support portion 733 in the horizontal direction. The lip 734 protrudes outward from the end of the horizontal member support portion 733 by a predetermined length and extends on the upper surface of the support portion 721. In other words, the lip 734 corresponds to the convex portion in the present invention. By designing the protruding length of the lip 734 to match the interval b between the inner ends of the pair of supported portions 312 of the corresponding lower mold plate 31, the outer ends of the pair of lips (convex portions) 734 can be made to fit exactly on the inner surface of the opening 311 of the lower mold plate 31. As a result, it is possible to check at the construction site whether the lower mold plate 31 and the frame 7 are of compatible specifications.

[0071] 16 shows a state where a lower form plate 31 of suitable specifications is placed on the frame 7 (a state where a 550×550 lower form plate is placed on a 550×550 frame). In this column base anchor structure 1, the outer end of the lip 734 fits just inside the inner surface of the opening 311. In other words, at the construction site, by checking whether the outer end of the lip 734 fits inside the inner surface of the opening 311 of the lower form plate 31, it can be confirmed whether the lower form plate 31 and the frame 7 are of compatible specifications.

[0072] 17 shows a state in which the lower plate 31 with a low step and small spacing is placed on the stand 7 (a state in which a 500×500 lower plate is placed on a 550×550 stand). In this column base anchor structure 1, the lip 734 and the lower plate 31 overlap. Therefore, the lower plate 31 is placed on the stand 7 in an unstable state. In addition, the lip 734 creates a gap between the supporting portion 721 and the supported portion 312. This allows the construction site to notice that the lower plate 31 with a low step and small spacing is placed on the stand 7.

[0073] 18 shows the state when the lower plate 31 with a high step and large spacing is placed on the rack 7 (a state in which a 600×600 lower plate is placed on a 550×550 rack). In this case, the rack 7 gets stuck in the opening 311 of the lower plate 31, and the lower plate 31 cannot be placed on the rack 7. This allows the construction site to notice that the lower plate 31 with a high step and large spacing has been placed on the rack 7.

[0074] The lip 734 is not limited to being formed by bending the plate member that constitutes the jig 73, but may be joined to the horizontal member support portion 733 by welding or the like as shown in FIG.

[0075] [Other variations] In this embodiment, two protrusions are provided on each support, but this is not limited thereto. One protrusion, or three or more protrusions may be provided on each support. When one protrusion is provided on each support using the lip of a jig, a lip as a protrusion may be provided only on one side of the jig. In addition, the protrusion provided on each support may be a combination of the protrusion as in the first embodiment and the lip of the jig as in the second embodiment. [Explanation of symbols]

[0076] 1 Column base anchor structure 2 Mounting stand 21 Post 22 Lateral member 221 Support part 222 Convex 223 Welding 23 Pedestal 3 Anchor Frame 31 Bottom plate 311 Aperture 312 Supported part 32 Anchor bolt 33 Nut 34 Nut 35 Upper plate 4 Base plate 5. Leveling concrete 6. Foundation Concrete 7 Mounting 71 Pillar 72 Horizontal member 721 Support part 73 Jig 731 Yamagata 732 Protrusion 733 Lateral member support section 734 Lip (convex part) a External dimensions b Spacing of supported parts c Outer edge spacing d Inner edge spacing e Width of support f Distance between outer edges of protrusions g Width of the protrusion

Claims

1. a first specification form plate having a pair of supported parts, the distance between inner ends of the supported parts being set to a first supported part inner end distance; a first specification rack having a pair of support parts supporting the supported parts of the first specification form plate, the spacing between inner ends of the support parts being set at a first support part inner end spacing that is smaller than the first supported part inner end spacing, the spacing between outer ends being set at a first support part outer end spacing that is larger than the first supported part inner end spacing, and having convex parts provided on upper surfaces of the support parts, the spacing between outer ends of the convex parts being set at a first convex part outer end spacing that is smaller than the first supported part inner end spacing; A first specification column base anchor structure comprising: a second specification form plate having a pair of supported parts, the distance between inner ends of the supported parts being set to a second supported part inner end distance that is one step larger than the first supported part inner end distance; a second specification rack having a pair of support parts supporting the supported parts of the second specification form plate, the spacing between inner ends of the support parts being set at a second support part inner end spacing smaller than the second supported part inner end spacing, the spacing between outer ends being set at a second support part outer end spacing larger than the second supported part inner end spacing, and having convex parts provided on upper surfaces of the support parts, the spacing between outer ends of the convex parts being set at a second convex part outer end spacing smaller than the second supported part inner end spacing; A second specification column base anchor structure comprising: a third specification form plate having a pair of supported parts, the distance between inner ends of the supported parts being set to a third supported part inner end distance that is one step larger than the second supported part inner end distance; a third specification rack having a pair of support parts supporting the supported parts of the third specification form plate, the spacing between inner ends of the support parts being set at a third support part inner end spacing smaller than the third supported part inner end spacing, the spacing between outer ends being set at a third support part outer end spacing larger than the third supported part inner end spacing, and having convex parts provided on upper surfaces of the support parts, the spacing between outer ends of the convex parts being set at a third convex part outer end spacing smaller than the third supported part inner end spacing; A third specification column base anchor structure comprising: A set of column base anchor structures comprising: the first supported portion inner end interval is equal to or smaller than the second protruding portion outer end interval, the second supported portion inner end interval is equal to or smaller than the third supported portion outer end interval, The second supported portion inner end interval is larger than the first supported portion outer end interval, The third supported portion inner end interval is greater than the second supported portion outer end interval. A column base anchor structure set comprising:

2. a first specification form plate having a pair of supported parts, the distance between inner ends of the supported parts being set to a first supported part inner end distance; a first specification rack having a pair of support parts supporting the supported parts of the first specification form plate, the spacing between inner ends of the support parts being set at a first support part inner end spacing that is smaller than the first supported part inner end spacing, the spacing between outer ends being set at a first support part outer end spacing that is larger than the first supported part inner end spacing, and having convex parts provided on upper surfaces of the support parts, the spacing between outer ends of the convex parts being set at a first convex part outer end spacing that is smaller than the first supported part inner end spacing; A first specification column base anchor structure comprising: a second specification form plate having a pair of supported parts, the distance between inner ends of the supported parts being set to a second supported part inner end distance that is one step larger than the first supported part inner end distance; a second specification rack having a pair of support parts supporting the supported parts of the second specification form plate, the spacing between inner ends of the support parts being set at a second support part inner end spacing smaller than the second supported part inner end spacing, the spacing between outer ends being set at a second support part outer end spacing larger than the second supported part inner end spacing, and having convex parts provided on upper surfaces of the support parts, the spacing between outer ends of the convex parts being set at a second convex part outer end spacing smaller than the second supported part inner end spacing; A second specification column base anchor structure comprising: A set of column base anchor structures comprising: the first supported portion inner end interval is equal to or smaller than the second protruding portion outer end interval, The distance between the inner ends of the second supported portion is greater than the distance between the outer ends of the first supported portion. A column base anchor structure set comprising:

3. The first specification rack has a vertically arranged support column and a jig that connects an upper end of the support column and the support portion to each other, The column base anchor structure set according to claim 1 or 2, wherein the protrusion is a portion extending from the jig onto an upper surface of the support portion.

4. The second specification rack has a vertically arranged support and a jig that connects an upper end of the support and the support part to each other, The column base anchor structure set according to claim 1 or 2, wherein the protrusion is a portion extending from the jig onto an upper surface of the support portion.

5. The third specification rack has a vertically arranged support and a jig that connects an upper end of the support and the support part to each other, The column base anchor structure set according to claim 1 , wherein the protrusion is a portion extending from the jig to an upper surface of the support portion.

Images