Set of column base anchor structures

Abstract

To make it possible to determine whether or not a form plate constituting a column base anchor structure has been selected at the time of designing, in a manufacturing site.SOLUTION: A column base anchor structure 1 includes one form plate selected from a plurality of form plates whose specification is determined by a standard, and a trestle supporting the one form plate. The trestle 2 has a pair of supporting parts 221 for supporting a lower form plate 31, and the lower form plate 31 has a pair of supported parts 312 supported by the pair of supporting parts 221. The standard determines the specification of the lower form plate 31 so that an interval b on the inside end between the pair of supported parts 312 becomes gradually large, and includes a specification that the interval b between the supported parts 312 is a first interval, a specification that the interval is a second interval larger than the first interval by one step, and a specification that the interval is a third interval larger than the second interval by one step. The interval d between the inside ends of the pair of supporting parts 221 is equal to or larger than the first interval, and an interval c between the outside ends of the pair of supporting parts 221 is equal to or larger than the second interval and equal to or less than 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 500×500 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 stand (e.g., stand 2A for 500×500 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., 450 mm in FIG. 7) smaller than the first supported part inner end distance (e.g., 500 mm in FIG. 6) and 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); A first specification column base anchor structure comprising: A second specification form plate (e.g., lower form plate 31B for 550×550 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 stand (e.g., stand 2B for 550×550 in FIG. 7) having a pair of support parts for 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., 500 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); A second specification column base anchor structure comprising: A third specification form plate (e.g., lower form plate 31C for 600×600 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 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 stand (e.g., stand 2C for 600×600 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., 550 mm in FIG. 7) smaller than the third supported part inner end distance (e.g., 600 mm in FIG. 6) and 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); A third specification column base anchor structure comprising: A set of column base anchor structures comprising: The first supported portion inner end interval (e.g., 500 mm in FIG. 6) is equal to or less than the second supported portion inner end interval (e.g., 500 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 supported portion inner end interval (e.g., 550 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 500×500 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 stand (e.g., stand 2A for 500×500 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., 450 mm in FIG. 7) smaller than the first supported part inner end distance (e.g., 500 mm in FIG. 6) and 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); A first specification column base anchor structure comprising: A second specification form plate (e.g., lower form plate 31B for 550×550 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 stand (e.g., stand 2B for 550×550 in FIG. 7) having a pair of support parts for 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., 500 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); A second specification column base anchor structure comprising: A set of column base anchor structures comprising: The first supported portion inner end interval (e.g., 500 mm in FIG. 6) is equal to or less than the second supported portion inner end interval (e.g., 500 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 the set of column base anchor structures described in claim 1 or claim 2, characterized in that when the supporting portion of the first specification frame supports the supported portion of the first specification form plate, a welding allowance is secured in the supporting portion of the first specification frame for joining the supporting portion of the first specification frame and the first specification form plate. The invention of claim 4 is the set of column base anchor structures described in claim 1 or claim 2, characterized in that when the supporting portion of the second specification frame supports the supported portion of the second specification form plate, a welding allowance is secured in the supporting portion of the second specification frame for joining the supporting portion of the second specification frame and the second specification form plate. The invention of claim 5 is the set of column base anchor structures described in claim 1, characterized in that when the supporting portion of the third specification frame supports the supported portion of the third specification form plate, a welding allowance is secured in the supporting portion of the third specification frame for joining the supporting portion of the third specification frame and the third specification form plate. Another invention may be as follows. Means 1 teeth, A first specification form plate (e.g., lower form plate 31A for 500×500 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 stand (e.g., stand 2A for 500×500 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., 450 mm in FIG. 7) smaller than the first supported part inner end distance (e.g., 500 mm in FIG. 6) and 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); A first specification column base anchor structure comprising: A second specification form plate (e.g., lower form plate 31B for 550×550 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 stand (e.g., stand 2B for 550×550 in FIG. 7) having a pair of support parts for 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., 500 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); A second specification column base anchor structure comprising: A third specification form plate (e.g., lower form plate 31C for 600×600 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 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 stand (e.g., stand 2C for 600×600 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., 550 mm in FIG. 7) smaller than the third supported part inner end distance (e.g., 600 mm in FIG. 6) and 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); A third specification column base anchor structure comprising: A set of column base anchor structures comprising: The first supported portion inner end interval (e.g., 500 mm in FIG. 6) is equal to or less than the second supported portion inner end interval (e.g., 500 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 supported portion inner end interval (e.g., 550 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 500×500 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 stand (e.g., stand 2A for 500×500 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., 450 mm in FIG. 7) smaller than the first supported part inner end distance (e.g., 500 mm in FIG. 6) and 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); A first specification column base anchor structure comprising: A second specification form plate (e.g., lower form plate 31B for 550×550 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 stand (e.g., stand 2B for 550×550 in FIG. 7) having a pair of support parts for 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., 500 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); A second specification column base anchor structure comprising: A set of column base anchor structures comprising: The first supported portion inner end interval (e.g., 500 mm in FIG. 6) is equal to or less than the second supported portion inner end interval (e.g., 500 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 500×500 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 stand (e.g., stand 2A for 500×500 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., 450 mm in FIG. 7) smaller than the first supported part inner end distance (e.g., 500 mm in FIG. 6) and 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); A first specification column base anchor structure comprising: A second specification form plate (e.g., lower form plate 31B for 550×550 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 stand (e.g., stand 2B for 550×550 in FIG. 7) having a pair of support parts for 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., 500 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); 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 parts (e.g., 500 mm in FIG. 6) is equal to or less than the distance between the inner ends of the second supported parts (e.g., 500 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 500×500 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 stand (e.g., stand 2A for 500×500 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., 450 mm in FIG. 7) smaller than the first supported part inner end distance (e.g., 500 mm in FIG. 6) and 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); A first specification column base anchor structure comprising: A second specification form plate (e.g., lower form plate 31B for 550×550 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 stand (e.g., stand 2B for 550×550 in FIG. 7) having a pair of support parts for 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., 500 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); 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 5 When the supporting portion of the first specification frame supports the supported portion of the first specification form plate, a welding allowance for joining the supporting portion of the first specification frame and the first specification form plate is secured in the supporting portion of the first specification frame. Means 1 to 4 1. A set of column base anchor structures according to any one of the preceding claims. Means 6When the supporting portion of the second specification rack supports the supported portion of the second specification form plate, a welding allowance for joining the supporting portion of the second specification rack and the second specification form plate is secured in the supporting portion of the second specification rack. Means 1 to 4 1. A set of column base anchor structures according to any one of the preceding claims. Means 7 When the supporting portion of the third specification rack supports the supported portion of the third specification form plate, a welding allowance for joining the supporting portion of the third specification rack and the third specification form plate is secured in the supporting portion of the third specification rack. Means 1 2 is a set of column base anchor structures according to the embodiment of the present invention. moreover Another invention may be the following. The column base anchor structure of 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 supporting parts supporting the form plate, and 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 spacing between the pair of supported parts increases in stages, including a specification in which the spacing is a first spacing, a specification in which the spacing is a second spacing that is one step larger than the first spacing, and a specification in which the spacing is a third spacing that is one step larger than the second spacing, and the spacing between inner ends of the pair of supporting parts is equal to or greater than the first spacing, and the spacing between outer ends of the pair of supporting parts is equal to or greater than the second spacing and is equal to or less than the third spacing.

[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 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 spacing between the pair of supported parts increases in stages, including a specification in which the spacing is a first spacing, a specification in which the spacing is a second spacing that is one step larger than the first spacing, and a specification in which the spacing is a third spacing that is one step larger than the second spacing, and the spacing between the inner ends of the pair of support parts is greater than or equal to the first spacing, and the spacing between the outer ends of the pair of support parts is greater than or equal to the second spacing and less than or equal to the third spacing.

[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 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 inner ends of the pair of supporting parts to be equal to or greater than the first 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 is possible to judge at the construction site whether or not the form plate constituting the column base anchor structure is the one selected at the time of design. [Brief description of the drawings]

[0012] [Figure 1] FIG. 2 is a perspective view of a column base anchor structure. [Diagram 2] 13A to 13C are diagrams illustrating the installation process of the column base anchor structure. [Diagram 3] 13A to 13C are diagrams illustrating the installation process of the column base anchor structure. [Figure 4] 13A to 13C are diagrams illustrating the installation process of the column base anchor structure. [Diagram 5] 13A to 13C 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. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. However, it goes without saying 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] 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 cross 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 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.

[0021] 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.

[0022] 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.

[0023] 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 34.

[0024] 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.

[0025] 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.

[0026] 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.

[0027] The upper part of the anchor bolt 32 is inserted into a bolt hole in the base plate 4. Then, a nut 34 is fastened to the anchor bolt 32, thereby fixing the base plate 4 to the foundation concrete.

[0028] [Column base anchor structure installation process] Next, the process of installing the column base anchor structure 1 will be described with reference to Figs.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] Once the foundation concrete 6 has hardened, the upper plate 35 is removed (see FIG. 4).

[0033] 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.

[0034] 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.

[0035] [Specifications for column base anchor structure] Next, the specifications of the column base anchor structure 1 will be described.

[0036] 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.

[0037] 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).

[0038] The lower form plate 31 is predetermined in stages according to the standard: 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.

[0039] 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.

[0040] 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.

[0041] FIG. 7 shows an example of standards for the mount 2 of the column base anchor structure 1, and shows some of the specifications (2A, 2B, 3C).

[0042] The mounts 2 are predetermined by standards as a 500×500 mount 2A, a 550×550 mount 2B, and a 600×600 mount 2C.

[0043] In the 500×500 stand 2A, the distance c between the outer ends of the pair of support parts 221 is 540 [mm], the distance d between the inner ends is 450 [mm], and the width e of the support parts 221 is 45 [mm]. In the 550×550 stand 2B, the distance c between the outer ends of the pair of support parts 221 is 590 [mm], the distance d between the inner ends is 500 [mm], and the width e of the support parts 221 is 45 [mm]. In the 600×600 stand 2C, the distance c between the outer ends of the pair of support parts 221 is 640 [mm], the distance d between the inner ends is 550 [mm], and the width of the support parts 221 is 45 [mm].

[0044] 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.

[0045] 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.

[0046] The distance c between the outer ends of the pair of supporting parts 221 of the 550×550 stand 2B is 590 [mm], and the distance b between the inner ends of the pair of supported parts 312 of the 550×550 lower plate 31B is 550 [mm]. In other words, each supporting part 221 supports the supported part 312 of the lower plate 31B with a width of 20 [mm].

[0047] Also, the distance d between the inner ends of the supporting portions 221 is 500 [mm]. That is, the distance b between the inner ends of the supported portions 312 of the lower plate 31B is longer than the distance d between the inner ends of the pair of supporting portions 221 of the frame 2B. Therefore, a welding allowance for joining the frame 2B and the lower plate 31B is secured on the upper surface of the supporting portion 221, and the frame 2 and the lower plate 31B can be joined via the welded portion 222. Therefore, the worker at the construction site can confirm that the appropriate lower plate 31B is placed on the frame 2B.

[0048] 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.

[0049] The distance d between the inner ends of the pair of supporting parts 221 of the 550×550 stand 2B is 500 [mm], and the distance b between the inner ends of the pair of supported parts 312 of the 500×500 lower plate 31A is 500 [mm]. In other words, the upper surface of the supporting part 221 of the stand 2B is covered by the lower plate 31A. Therefore, the lower plate 31A can be supported by the supporting part 221.

[0050] However, the upper surface of the support portion 221 is completely covered by the lower plate 31A, and a welding allowance for joining the frame 2B and the lower plate 31A cannot be secured on the upper surface of the support portion 221. Therefore, a worker at the construction site can notice that an appropriate lower plate is not placed on the frame 2B.

[0051] FIG. 12 is a plan view of the column base anchor structure 1 in a state where the 600×600 lower plate 31C is placed on the 550×550 rack 2B, and FIG. 13 is a view taken along the CC line in FIG. 12. 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.

[0052] 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 a welding allowance for joining the frame 2A and the lower plate 31A is secured on the upper surface of the support part 221. Therefore, the worker at the construction site can confirm that the appropriate lower plate 31A is placed on the frame 2A.

[0053] 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.

[0054] Furthermore, when the 600×600 mounting stand 2C and the 600×600 lower plate 31C are combined, the lower plate 31C can be placed on the mounting stand 2C, and a welding allowance for joining the mounting stand 2C and the lower plate 31C is secured on the upper surface of the support part 221. Therefore, workers at the construction site can confirm that an appropriate lower plate 31C is placed on the mounting stand 2C.

[0055] On the other hand, when the 600×600 rack 2C and the 550×550 lower plate 31B are combined, the distance d between the inner ends of the supporting portion 221 and the distance b between the inner ends of the supported portion 312 become the same. Therefore, it is not possible to secure a welding allowance for joining the rack 2C and the lower plate 31B on the upper surface of the supporting portion 221. Therefore, the workers at the construction site can notice that the lower plate 31B is not suitable for the rack 2C.

[0056] As described above, in one 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. Therefore, it is possible to prevent mounts 2 and anchor frames 3 with different specifications from being assembled erroneously.

[0057] 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. [Explanation of symbols]

[0058] 1 Column base anchor structure 2 Mounting stand 21 Post 22 Lateral member 221 Support part 222 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 a External dimensions b Spacing of supported parts c Outer edge spacing d Inner edge spacing e Width of support

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 distance between inner ends of the support parts being set to a first support part inner end distance that is smaller than the first supported part inner end distance, and the distance between outer ends of the support parts being set to a first support part outer end distance that is larger than the first supported part inner end distance; 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 distance between inner ends of the support parts being set to a second support part inner end distance that is smaller than the second supported part inner end distance, and the distance between outer ends of the support parts being set to a second support part outer end distance that is larger than the second supported part inner end distance; 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 distance between inner ends of the support parts being set to a third support part inner end distance that is smaller than the third supported part inner end distance, and the distance between outer ends of the support parts being set to a third support part outer end distance that is larger than the third supported part inner end distance; 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 less than the second supported portion inner end interval, the second supported portion inner end interval is equal to or smaller than the third supported portion inner 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 distance between inner ends of the support parts being set to a first support part inner end distance that is smaller than the first supported part inner end distance, and the distance between outer ends of the support parts being set to a first support part outer end distance that is larger than the first supported part inner end distance; 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 distance between inner ends of the support parts being set to a second support part inner end distance that is smaller than the second supported part inner end distance, and the distance between outer ends of the support parts being set to a second support part outer end distance that is larger than the second supported part inner end distance; 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 less than the second supported portion inner 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 set of column base anchor structures according to claim 1 or 2, characterized in that when the supporting portion of the first specification frame supports the supported portion of the first specification form plate, a welding allowance is secured in the supporting portion of the first specification frame for joining the supporting portion of the first specification frame and the first specification form plate.

4. The set of column base anchor structures according to claim 1 or 2, characterized in that when the supporting portion of the second specification frame supports the supported portion of the second specification form plate, a welding allowance is secured in the supporting portion of the second specification frame for joining the supporting portion of the second specification frame and the second specification form plate.

5. The set of column base anchor structures according to claim 1, characterized in that, when the supporting portion of the third specification frame supports the supported portion of the third specification form plate, a welding allowance is secured in the supporting portion of the third specification frame for joining the supporting portion of the third specification frame and the third specification form plate.

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