JP5241333B2 - Exposed-type column base design support system and exposed-type column base design support program - Google Patents

Description

The present invention provides a tool to improve the efficiency of design work, in particular, an exposed type column base design support how to support the determination of the dynamic situation in designing Exposed column base steel structures for performing exposure type column base design support system, and the exposed type column base design support program for performing the method.

When designing exposed column bases for steel structures, set the exposed column base type for each exposed column base, and then apply various load cases (combinations of vertical load and horizontal load) that act on the exposed column base. ) Calculate various stresses (axial force, bending moment, shearing force) and proof stress for each, test the degree of balance between stress and proof stress, and whether the exposed column base model set at the initial stage of design is appropriate The determination is made.
In recent years, an exposed column base design support system has been developed in which such a strength test of the exposed column base is performed using a computer.

Then, the inventor etc. displays the entire arrangement of the exposed column bases for the proof test on the display means so that the test results can be grasped in a short time, and also balances the stress and the proof stress of the entire exposed column base. An invention is disclosed in which the degree can be easily grasped visually.
That is, a diagram in which each of the plurality of exposed column bases subjected to the proof test is schematically arranged is displayed on the display unit, and each of the exposed column base marks indicating the exposed column bases in the diagram on the display unit is displayed. , The display type can be visually distinguished according to the test result of the corresponding exposed column base, and the test result of the exposed column base can be visually identified from the exposed column base mark on the display means. (For example, refer to Patent Document 1).

JP 2002-294867 A (page 4-7, FIG. 1)

Therefore, since the verification result can be visually identified, the designer can easily understand the balance between the stress and the proof stress of each exposed column base, and the time required for the design work can be shortened, and the efficiency of the design work can be reduced. Can be realized.
However, in order to determine the amount of column-type reinforcing bars, when trying to determine whether each exposed column base is “tension side” or “compression side”, the designer must Therefore, it is necessary to determine whether each column base is “tensile side” or “compression side” based on the yield strength diagram drawn on the above, and further reduction of the amount of work required for the design has been demanded.

The present invention responds to such a demand, and draws a proof diagram for each column base for each load condition, indicating whether each column base is “tension side” or “compression side”. it not, the the automatic determination for each column base, making it possible to visually display the automatic determination results for all the pedestal, for performing exposure type column base design support how, It is an object of the present invention to provide an exposed column base design support system and an exposed column base design support program for executing the method.

(1) The exposed column base design support system according to the present invention determines whether each exposed column base is on the compression side or the tension side by an axial force acting on each of the plurality of exposed column bases. And an exposed column base design support system for implementing an exposed column base design support method for supporting the design of an exposed column base configured to display the determination result on a display means,
Of the axial forces (N) acting under at least one load condition of the long-term load condition, the short-term load condition, or the ultimate load condition, at least one axial force (N) is the reference axial force (N3) under the at least one load condition. ) In the following cases (N3 ≧ N), the exposed column base is determined to be the tension side,
A diagram in which each of the plurality of exposed column bases to be judged is schematically arranged is displayed on the display means,
In the figure on the display means, an exposed column base mark that means the exposed column base corresponding to each of the exposed column bases and the determination result are displayed so as to be visually identifiable. And

(2) In addition, in the determination, when a tensile force acts on more than half of the plurality of fixing bolts for fixing the exposed column base, the exposed column base is on the tension side. It is characterized by.
(3) In the above (1) or (2), the exposed type column base is a four anchor bolt type, and a reference axial force (N3) is defined by the following equation:
N3 = (L2 / D) * N0-2 * T
L2 = (D-2 * d1) / 2
N0 = k * 1.1 * Fc * D * B
However, k = 4/9 (for long term)
k = 2/3 (when short-term)
k = 0.85 (when final)
T = As * F / 1.5 (for long term)
T = As * F (for short-term)
T = Ab * F (at the end)
Where D: Base plate width
B: Depth of base plate
d1: Distance from the center to the anchor bolt
Fc: Design standard strength of concrete
F: Anchor bolt design standard strength
As: Effective cross-sectional area of thread portion of anchor bolt
Ab: Cross-sectional area of the shaft portion of the anchor bolt
In the determination, for each of the exposed type column bases, at least one axial force (N) is selected from among axial forces (N) that act on at least one load condition of a long-term load condition, a short-term load condition, or an ultimate load condition. When the reference axial force (N3) is equal to or less than the reference axial force (N3) under the at least one load condition (N3 ≧ N), the exposed column base is determined to be the tension side.

  (4) Further, in the above (1) or (2), the exposed type column base is an eight anchor bolt type, and a reference axial force (N5) is defined by the following equation:
       N5 = (L3 / D) * N0-4 * T
       L3 = (D-2 * d2) / 2
       N0 = k * 1.1 * Fc * D * B
However, k = 4/9 (for long term)
         k = 2/3 (when short-term)
         k = 0.85 (when final)
         T = As * F / 1.5 (for long term)
         T = As * F (for short-term)
         T = Ab * F (at the end)
Where D: Base plate width
         B: Depth of base plate
       d2: Distance from the center to the inner anchor bolt
       Fc: Design standard strength of concrete
         F: Anchor bolt design standard strength
       As: Effective cross-sectional area of thread portion of anchor bolt
       Ab: Cross-sectional area of the shaft portion of the anchor bolt
  In the determination, for each of the exposed type column bases, at least one axial force (N) is selected from among axial forces (N) that act on at least one load condition of a long-term load condition, a short-term load condition, or an ultimate load condition. In the case where the reference axial force (N5) is equal to or less than the reference axial force (N5) under the at least one load condition (N5 ≧ N), the exposed column base is determined to be the tension side.
  (5) Further, in any one of (1) to (4), the visibility is improved visually by changing a display color of the display indicating the exposed column base mark or the determination result. To do.
  (6) In any one of (1) to (5), the exposed column base mark displayed on the display unit and the determination result are printed and output as desired.

(7) Further, the exposed column base design support program according to the present invention determines whether each exposed column base is on the compression side or the tension side by an axial force acting on each of the plurality of exposed column bases. An exposure type column base design support program for causing a computer to execute an exposure type column base design support method for making a determination and supporting the design of an exposure type column base configured to display the determination result on a display means There,
Of the axial forces (N) acting under at least one load condition of the long-term load condition, the short-term load condition, or the ultimate load condition, at least one axial force (N) is the reference axial force (N3) under the at least one load condition. ) In the following cases (N3 ≧ N), the exposed column base is determined to be the tension side,
A diagram in which each of the plurality of exposed column bases to be judged is schematically arranged is displayed on the display means,
In the figure on the display means, an exposed column base mark that means the exposed column base corresponding to each of the exposed column bases and the determination result are displayed so as to be visually identifiable. This makes the computer execute the exposed column base design support method.
(8) In the above (7), the determination is that when the tensile force acts on more than half of the plurality of fixing bolts for fixing the exposed column base, the exposed column base is pulled. It is characterized by being on the side.

(9) In (7) or (8), the exposed column base is a four anchor bolt type, and a reference axial force (N3) is defined by the following equation:
N3 = (L2 / D) * N0-2 * T
L2 = (D-2 * d1) / 2
N0 = k * 1.1 * Fc * D * B
However, k = 4/9 (for long term)
k = 2/3 (when short-term)
k = 0.85 (when final)
T = As * F / 1.5 (for long term)
T = As * F (for short-term)
T = Ab * F (at the end)
Where D: Base plate width
B: Depth of base plate
d1: Distance from the center to the anchor bolt
Fc: Design standard strength of concrete
F: Anchor bolt design standard strength
As: Effective cross-sectional area of thread portion of anchor bolt
Ab: Cross-sectional area of the shaft portion of the anchor bolt
In the determination, for each of the exposed type column bases, at least one axial force (N) is selected from among axial forces (N) that act on at least one load condition of a long-term load condition, a short-term load condition, or an ultimate load condition. When the reference axial force (N3) is equal to or less than the reference axial force (N3) under the at least one load condition (N3 ≧ N), the exposed column base is determined to be the tension side .

  (10) In the above (7) or (8), the exposed column base is an eight anchor bolt type, and a reference axial force (N5) is defined by the following equation:
       N5 = (L3 / D) * N0-4 * T
       L3 = (D-2 * d2) / 2
       N0 = k * 1.1 * Fc * D * B
However, k = 4/9 (for long term)
         k = 2/3 (when short-term)
         k = 0.85 (when final)
         T = As * F / 1.5 (for long term)
         T = As * F (for short-term)
         T = Ab * F (at the end)
Where D: Base plate width
         B: Depth of base plate
       d2: Distance from the center to the inner anchor bolt
       Fc: Design standard strength of concrete
         F: Anchor bolt design standard strength
       As: Effective cross-sectional area of thread portion of anchor bolt
       Ab: Cross-sectional area of the shaft portion of the anchor bolt
  In the determination, for each of the exposed type column bases, at least one axial force (N) is selected from among axial forces (N) that act on at least one load condition of a long-term load condition, a short-term load condition, or an ultimate load condition. In the case where the reference axial force (N5) is equal to or less than the reference axial force (N5) under the at least one load condition (N5 ≧ N), the exposed column base is determined to be the tension side.
  (11) Further, in any one of (7) to (10), the visibility is improved visually by changing a display color of the display indicating the exposed column base mark or the determination result. To do.
  (12) In any one of (7) to (11), the exposed column base mark displayed on the display unit and the determination result are printed and output as desired.

  The present invention is configured as described above, and for each of a plurality of exposed column bases to be subjected to a proof test, a diagram in which exposed column base marks corresponding to each of the exposed column bases are schematically arranged. Is displayed on the display means, and in order to visually display the determination result of whether it is “tensile side or compression side” in the figure, all without drawing a bearing diagram for each column base It is possible to automatically and quickly know the determination result for the exposed column base.

As described above, the invention disclosed in Patent Document 1 displays a diagram in which exposed column base marks are schematically arranged on the display means, and in the diagram, “test value” obtained by dividing stress by proof stress. Is displayed.
On the other hand, in the present invention, in addition to the test value or instead of the test value, the exposure type column base “displays the determination result as to whether it is the tension side or the compression side” is visually displayed. It is. Therefore, the present invention will be described below using the description of Patent Document 1. In addition, the content relevant to the said test value in the following description is not essential, and can be abbreviate | omitted. In addition, determining whether the exposed column base is on the compression side or the tension side may be referred to as “pressing determination”.

[Embodiment 1]
1 are illustrative of the exposed type column base design support program according to the first embodiment of the present invention, shown flowchart, in Figure 2 Figure 1 shows an example of a processing flow for implementing this It is a figure which shows an example of the screen transition in an exposure type | mold column base setting assistance program. In FIG. 2, a solid line arrow indicates a window transition flow, and a broken line arrow indicates a data flow. A portion indicated by a double frame is a characteristic portion of the present embodiment. FIG. 3 is a block diagram showing a configuration of an exposed column base design support system which is a device configuration for executing the exposed column base design support program.

(System configuration)
First, the configuration of the exposed column base design support system 1 will be described with reference to FIG.
The exposed column base design support system 1 includes a display means 3, a mouse 5 and a keyboard 7 as input means, a storage device (for example, an FD drive device, a CD-ROM drive device, etc.) 9, a memory 13, and a hard disk. 15, a printer 17, and a CPU 19 that manages and manages the exposed column base design support system.
The CPU 19 executes an exposed column base design support program installed on the hard disk 15 and performs processing based on the program. This exposed column base design support program is provided by a recording medium (for example, FD, CD-ROM, etc.) on which the program is recorded, and is installed in the installation 15 on the hard disk via the storage device 9.

(hard disk)
The hard disk 15 stores a column base / exposed type column base list table 16, a strength test table group 18, and a column base / street symbol definition table 20 that are associated with each other by a management ID (see FIG. 2). The column base / exposed type column base list table 16 and the strength test table group 18 are the same as the conventional column base / exposed type column base list table 101 and the strength test table group 102, respectively, and here, these exposures are shown. In the mold column base list table 101 and the proof test table group 102, it is assumed that various types of information regarding each of the plurality of exposed test pedestals subjected to the proof test are stored in advance.
Note that the exposed column base to be subjected to the proof test may be the entire exposed column base of the building or an exposed column base in an area arbitrarily selected by the designer. For example, an experienced designer can hit an exposed column base that is likely to have a problem with the balance between stress and proof stress from the design drawing. Will be selected.

(Column base / exposed type column base list table)
FIG. 4 is a view showing a column base / exposed type column base list table. In FIG. 4, the column base / exposed type column base list table 16 manages each of a plurality of exposed type column bases subject to the proof test (only one exposed type column base is shown in FIG. 4 for convenience). ID, X code and Y code to specify the exposed column base, column base code (column base material shape (square, circular, etc.), dimensions (diameter, plate thickness, etc.), material (strength, Sign that defines the combination of welding characteristics, etc.), steel pipe symbol (symbol representing the shape and dimensions of the steel pipe), and exposed column base type (external dimensions of base plate, bolt diameter of anchor bolt, base plate and anchor bolt, respectively) Are stored).

(Yield test table group)
5 to 7 are diagrams showing each table constituting the yield strength test table group. FIG. 5 is a stress / proof stress information table, FIG. 6 is an axial force test table, and FIGS. 7 (a) and 7 (b) are columns. The exposed column base test table is shown for each leg axis direction ((a) is in the X axis direction and (b) is in the Y axis direction).
The stress / proof strength information table shown in FIG. 5 includes a management ID and a column base axis for each of a plurality of exposed type column bases to be tested for strength (only one exposed type base is shown in FIG. 5 for convenience). For each direction (X-axis direction, Y-axis direction), axial force N, bending moment under various load conditions (long-term L, short-term L + S, short-term L + LW, short-term L + RW, short-term L + LE, short-term L + RE, final L + γLE, final L + γRE), The stress and the proof stress for each shear force are stored (for the axial force, only the stress).
As described above, since the present invention performs “pushing determination”, when specializing in “pushing determination”, the bending moment and shear force are deleted from the stress / proof stress information table. (Refer to Embodiment 2 described later).

(Axial force test table)
Further, in the axial force test table shown in FIG. 6, for each of the plurality of exposed type column bases to be proof tested (FIG. 6 shows only one exposed type column base for the sake of convenience), the management ID and the loading For each load (long-term, short-term, final), the compressive strength and tensile strength of the axial force are stored.

(Program operation)
The operation of the exposed column base setting support program according to the present embodiment will be described below with reference to FIGS.
Here, prior to the description of the flowchart of the exposed column base design support program, an outline of the characteristic part in the exposed column base design support program according to the present embodiment will be described. Details will be described later.
The exposed column base design support program according to the present embodiment visually displays the result of the compression determination according to the key plan which is the invention disclosed in Patent Document 1. That is, as shown in FIG. 12 to be described later, a diagram (hereinafter referred to as a key plan) schematically showing the arrangement of a plurality of exposed column bases that are objects of the overdrawing determination is displayed on the display means 3, Corresponding to the exposed column base mark that means an exposed column base on the key plan (so as to overlap), it is visually distinguished and displayed by characters, marks, tones, etc. that can identify the result of the overwhelming judgment. It has the characteristics in doing so. Therefore, with this key plan, the designer can easily grasp the result of the traction determination for each column base visually, so that the design work time can be shortened and the efficiency can be improved. It is.

  In the key plan, the position of the exposed column base on the design drawing is replaced with the position of the coordinate system of the key plan, and the exposed column base mark is displayed at the replaced position. For this reason, for example, even if the column base arrangement on the actual design drawing is arranged at each intersection of each axis in FIG. 9A, the key plan is as shown in FIG. 9B. It is organized and expressed in the coordinate system of the key plan. Here, a case where the coordinate system of the key plan is an XY orthogonal coordinate system is illustrated.

Now that the features of the first embodiment have been clarified, the operation of the exposed column base design support program will be described with reference to FIGS.
When the CPU 19 recognizes that the exposure type column base design support program has been activated by a click operation of the mouse 5 by the designer, etc., it displays a main window on the display means 3 (S1). In the main window, various windows shown in FIG. 2 can be displayed by operating the mouse 5. Here, a display instruction of a proof test window indicating the proof test result is given by the designer, and when the CPU 19 recognizes this instruction, the proof test window is displayed on the display means 3.

(Proof test window)
FIG. 10 is a diagram showing an example of a proof test window. This proof test window is a window configured based on the proof test table group 18 and has almost the same configuration as the conventional proof test window, but with an exposed column base position definition field 21 newly provided. Is different. The other parts except the exposed column base position definition field 21 are the same, and the description thereof is omitted because it is redundant.
The exposed column base position definition field 21 will be described in detail in the following corresponding sections. When the CPU 19 recognizes that the list button 23 of the strength test window has been clicked, the CPU 19 displays a column base / street symbol definition window superimposed on the strength test window (S2).

(Column base / street symbol definition window)
FIG. 11 is a diagram illustrating an example of the column base / street symbol definition window.
Usually, on the design drawing, a street symbol for identifying a column base position is attached to each column base column. For example, in the example of FIG. 9A, R1 to R3, X1 to X3, and S1 to S4 correspond to the symbols. In the column base / street symbol definition window, an input for defining such street symbols by the number of each coordinate axis in the coordinate system of the key plan (hereinafter referred to as the coordinate axis street number) is performed (S3).
In this way, by defining the street symbol by the number along the coordinate axis, a versatile design support system that can be applied to the proof test of a complicated column base arrangement as shown in FIG. It can be constructed. The symbols defined here are displayed on the respective coordinate axes displayed on the key plan.

  That is, in FIG. 11, the symbols X1 to X10 are input to the symbol input field 31 corresponding to the numbers 1 to 10 along the coordinate axis of the X axis, and the symbol input fields corresponding to numbers 1 to 10 according to the coordinate axis of the Y axis 32 shows a case where symbols Y1 to Y10 are input. In this case, the symbols are displayed on the key plan as shown in FIG.

  In addition, when inputting to the street symbol input fields 31 and 32, it may be directly input using the keyboard 7, or may be performed using the numbering setting support fields 33 to 35. Specifically, for example, when inputting X1 to X10 as shown in FIG. 11, first, an X axis radio button is selected in the axis selection field 36, and an initial is input in the numbering setting support field 33. By inputting X in the field 33a, 1 in the sequence number input field 33b, entering 1 and 10 in the sequence number start value setting field 33c and the sequence number start value setting field 34d, respectively, and pressing the numbering button 33e Thus, it is possible to automatically input X1 to X10 in the street symbol input field 31.

  Also, when it is desired to input the same number as the coordinate axis number, it is possible to input easily by using the numbering setting support field 34. That is, by inputting the number of the last cell to be set to the same value in the end cell input field 34a and pressing the numbering button 34b, in the symbol input field 31, from the current cell where the cursor is positioned to the end cell input field 34a. By the time the cell is input, the same value as the number along the coordinate axis is automatically input. The clear field 35 is for clearing all the contents entered in the cell entered in the cell designation field 35a from the current cell where the cursor is located by pressing the clear button 35b. Note that these numbering setting support functions are naturally provided by the exposed column base design support program.

  When the street symbol is input to the street symbol input fields 31 and 32 and the OK button 37 is pressed by the designer (S4), the CPU 19 writes the definition information input here to the hard disk 15, and Close the street symbol definition window and return the control to the strength test window.

(Proof test window)
As described above, the strength test window (see FIG. 10) is a newly-exposed column base position definition field 21 provided in the conventional strength test window. Each exposed column base position is defined.

More specifically, when the exposed column base specified by X1 and Y1 on the design drawing is defined on the strength test window, as shown in FIG. 10, X in the exposed column base position definition field is displayed. In the input field 21a and the Y input field 21b, the coordinate axis number 1 corresponding to the symbols X1 and Y1 is respectively input to specify the exposed column base position. Note that symbols are automatically displayed in the fields 22a and 22b next to the X input field 21a and the Y input field 21b, respectively.
The definition of the exposed column base position is performed with reference to the design drawing. The contents defined as described above are stored in the column base / street symbol definition table 20 in the hard disk 15. FIG. 8 is a diagram showing a column base / street symbol definition table. As shown in FIG. 8, in the column base / street symbol definition table 20, the above definition contents are managed for each management ID.

  After that, all the exposed column bases subjected to the compression determination are subjected to the compression determination (S6-1, which will be described in detail later), and the CPU 19 defines the proof stress test table group 18, column base / street symbol definitions. A key plan is generated based on the table 20 and displayed on the display means 3 (S7-2).

(Key plan)
12 to 16 are diagrams showing an example of the key plan. FIG. 12 shows the entire key plan, and FIGS. 13 to 16 show the key plan actually displayed on the display means 3. The key plan has been briefly described so far, but will be described in detail here.
In the key plan (see FIG. 12), coordinate axes based on a two-dimensional coordinate system (here, the X axis and the Y axis based on an orthogonal coordinate system) are displayed at predetermined intervals, and each axis has a column base / street symbol definition window. Symbols defined in (see FIG. 11) are displayed in order in the X-axis direction (right direction in the figure) and Y-axis direction (upward direction in the figure). Then, for all exposed column bases defined using the strength test window (see FIG. 10), the exposed column base marks □ are located at the intersections of the respective positions of the exposed column base positions, that is, the street symbols. Is displayed.

(Pressure judgment)
For the pulling determination, at least one axial force (N) among the axial forces acting on each of the exposed column bases under at least one load condition of the long-term load condition, the short-term load condition, or the ultimate load condition is the least When the axial force is equal to or less than the reference axial force under the load condition 1, the exposed column base is determined to be the tension side.
Therefore, when the above determination is made under all long-term load conditions (X direction and Y direction), short-term load conditions (X direction and Y direction) or ultimate load conditions (X direction and Y direction) (6 cases). In some cases, the determination is performed by combining any of the load conditions, and the determination result is displayed corresponding to each load condition. For example, four cases of short-term load conditions (X direction and Y direction) and ultimate load conditions (X direction and Y direction) are determined. For example, two cases of short-term load conditions (X direction and Y direction) are determined. For example, the X direction of the ultimate load condition is determined.

The result of the evacuation determination is visually displayed by letters “compression” or “tensile” in the vicinity of the mark □ corresponding to the exposed column base mark □.
Note that the display procedure is not limited, and instead of characters, symbols indicating them or different colors may be added. Also, based on the result of the compression determination, the display color of the mark □ itself is changed, or the □ (square) shape is changed (for example, the compression side is □ (square shape) and the tension side is ◯ (round shape). )).

(Pressure determination: 4 anchor bolt type)
Next, the point of the drawing determination when the exposed column base is the four anchor bolt type will be described. FIG. 19 is a flowchart showing an example of the process of the compression determination (1 of S7 shown in FIG. 1) in the exposed column base design support program according to Embodiment 1 of the present invention.
First, a reference axial force (N3) under a long-term load condition is calculated. That is,
N3 = (L2 / D) * N0-2 * T (Formula 1)
L2 = (D-2 * d1) / 2 (Expression 2)
N0 = k * 1.1 * Fc * D * B (Formula 3)
However, k = 4/9 (formula 4 when long-term)
T = As * F / 1.5 (for long term, Equation 7)
Where D: Base plate width
B: Depth of base plate d1: Distance from anchor to anchor bolt Fc: Design standard strength of concrete
F: Design standard strength of anchor bolt As: Effective cross-sectional area of screw portion of anchor bolt Ab: Cross-sectional area of shaft portion of anchor bolt.
Then, for all the exposed column bases, the axial force acting on each of the exposed column bases is compared with the reference axial amount (N3) obtained by the calculation. For example, the axial force “20.00” in the X direction and the axial force “20.00” in the Y direction in FIG. 5 are compared with the reference axial amount (N3), and when any of them is “N3 ≧ N”, The exposed column base is determined to be the tension side under the long-term load condition.

Next, a reference axial force (N3) under a short-term load condition is calculated. That is,
N3 = (L2 / D) * N0-2 * T (Formula 1)
L2 = (D-2 * d1) / 2 (Expression 2)
N0 = k * 1.1 * Fc * D * B (Formula 3)
However, k = 2/3 (In the short term, Formula 5)
T = As * F (Equation 8 when short-term)
It is.
Then, for all the exposed column bases, the axial force acting on each of the exposed column bases is compared with the reference axial amount (N3) obtained by the calculation. For example, the axial force “20.10, 45.10, −4.51,...” And the axial force “20.10, 16.32, 4.51,. ”And the reference axis amount (N3), and if any one of“ N3 ≧ N ”, the exposed type column base is determined to be the tension side in the short-term load condition.

Further, the reference axial force (N3) under the ultimate load condition is calculated. That is,
N3 = (L2 / D) * N0-2 * T (Formula 1)
L2 = (D-2 * d1) / 2 (Expression 2)
N0 = k * 1.1 * Fc * D * B (Formula 3)
However, k = 0.85 (when it is final, Equation 6)
T = Ab * F (Equation 9 at the end)
It is.
Then, for all the exposed column bases, the axial force acting on each of the exposed column bases is compared with the reference axial amount (N3) obtained by the calculation. For example, the axial force “80.00, −40.00” in FIG. 5 and the axial force “44.00, −4.00” in the Y direction are compared with the reference axial amount (N3), and either Is “N3 ≧ N”, the exposed column base is determined to be the tension side in the ultimate load condition.

And, in any one of the long-term load condition, the short-term load condition and the ultimate load condition, when at least one axial force (N) is “N3 ≧ N”, the exposed column base is “tensile side”. Is determined. Therefore, when the determination of “tensile” is made under a specific load condition for a specific exposed column base, the comparison under other load conditions is stopped, and the exposed column base is “tensile side”. May be determined. In addition, the above comparison is performed sequentially about all the exposure type column bases.
In the above, determination is made for all of the long-term load condition, the short-term load condition, or the ultimate load condition, but the load condition to be determined can be selected as appropriate. Therefore, for example, when determining short-term load conditions or ultimate load conditions, calculations under long-term load conditions are not required, and when determining final load conditions, calculations under long-term load conditions and short-term load conditions are not required. Become.

(Pressure judgment: 8 anchor bolt type)
Further, when the exposed column base is an eight anchor bolt type, it is based on the case of the four anchor bolt type.
First, a reference axial force (N3) under a long-term load condition is calculated. That is,
N5 = (L3 / D) * N0-4 * T (Formula 11)
L3 = (D-2 * d2) / 2 (Expression 12)
N0 = k * 1.1 * Fc * D * B (Formula 13)
However, k = 4/9 (for a long term, Equation 14)
T = As * F / 1.5 (for long term, Equation 17)
It is.
Next, the reference axial force (N3) under the long-term load condition is calculated. That is,
N5 = (L3 / D) * N0-4 * T (Formula 11)
L3 = (D-2 * d2) / 2 (Expression 12)
N0 = k * 1.1 * Fc * D * B (Formula 13)
However, k = 2/3 (Equation 15 when short-term)
T = As * F (Equation 18 when short-term)
Further, the reference axial force (N3) under the ultimate load condition is calculated. That is,
N5 = (L3 / D) * N0-4 * T (Formula 11)
L3 = (D-2 * d2) / 2 (Expression 12)
N0 = k * 1.1 * Fc * D * B (Formula 13)
However, k = 0.85 (when it is final, Expression 16)
T = Ab * F (Equation 19 at the end)
It is.

(Bending moment display)
Here, the exposed column base mark □ indicates the bending moment M within □ and the shearing force Q indicates the frame, and the exposed column base mark □ is filled with the display color of the maximum test value of the bending moment M. The color of the exposed column base mark □ frame is displayed in the display color of the maximum test value of the shearing force Q.
Explaining in a specific example, the exposed column base 41 of coordinates X1, Y1 in FIG. 13 has a maximum value of 0.56 among the test values of the bending moment M, exceeding 0.5 and 0.75 or less. Since the maximum value of the test value of the shearing force Q is 0.97 and exceeds 0.75 and is 1.0 or less, the color definition in the reference numeral 51 in FIG. Will be filled with light blue, and the exposed column base mark □ frame will be displayed as a yellow line. In addition, each reference value (0.5, 0.75) which classifies a test value in FIG. 17 can be changed arbitrarily.

In addition, the CPU 19 sets the bending moment for each of the same exposure type column base type among a plurality of test values managed in the exposure type column base test table (see FIG. 7) of the proof stress test table group 18. The maximum value of M and the maximum value of the shearing force Q are respectively searched, and the color definition of reference numeral 52 in FIG. 17 is preferentially applied to the corresponding exposed column base.
That is, the exposed column base 42 in FIG. 14 has a maximum test value of the bending moment M of 1.28. Therefore, according to the color definition of reference numeral 51 in FIG. However, since the model is “□ -500-8M-42”, it corresponds to the exposed column base with the maximum bending moment M test value. Display in dark pink.
Further, the exposed type column base 43 of FIG. 15 has the maximum value of both the bending moment M and the shearing force Q among the types of “□ -500-8M-48”. The color definition of reference numeral 52 is applied to both the leg mark □ frame and the exposed column base mark □ frame, which are displayed in dark pink and red bold lines, respectively.

Next, the output contents of the table displayed at the upper right of the exposed column base mark □ will be described. FIG. 18 is an explanatory diagram of output contents. When the table is displayed, the display process performed by the CPU 19 is as follows.
For each exposed type column base, the CPU 19 extracts the column base code, the exposed type column base type, and the determination result from the yield strength test information table, and each of the bending moment M and the shearing force Q searched previously. The maximum test value, the load case that caused the maximum test value, and the determination result are extracted and displayed in a table format at the upper right of the corresponding exposed column base mark. In addition, about the test value exceeding 1, since design change is required, the information which can be identified is displayed. Specifically, the maximum value of the bending moment M of the exposed type column base 44 of FIG. 16 exceeds 1, and the content (* 3) is displayed in the table. Note that the output content table and the color definition table of FIG. 17 are also displayed on the key plan on the display means 3 as shown in FIG. 13 so that the designer can easily confirm.

The designer can visually grasp the result of the compression determination from the key plan configured as described above.
As described above, the key plan is confirmed, and the exposed column base design is completed (S8).

  10 to 13, the omnidirectional display tab 61 is selected and the key plan based on the test results for both the column base axis directions X and Y is displayed. It is also possible to switch to the key plan display when the display tab 62 or the Y direction display tab 63 is selected and the column base axis direction is limited to one direction. At this time, the CPU 19 receives an input from the designer, recognizes which tab is selected, obtains a strength test result for the recognized tab direction from the strength test table, generates a key plan, and displays the display means 3. Perform the process of displaying above.

  In addition, the key plan shown in FIGS. 12 to 16 is a key plan based on the test results for the column base axis directions in both the X and Y directions as described above, and both the bending moment and the shearing force are simultaneously measured. Although displayed, long-term load, short-term load, ultimate load consisting of a combination of horizontal load based on column base axis direction, stress type (bending moment, shear force), vertical load and horizontal force direction (right, left) It is also possible to display a limited number of combinations.

  When the exposed column base design is completed as described above, a print window is displayed by the designer's mouse 5 operation, and when a print instruction is input on the print window (S9), the CPU 19 displays it on the key plan window. The key plan being printed is printed by a printer and output (S10). The printed key plan corresponds to the key plan shown in FIG.

  When the CPU 19 recognizes that an instruction to display the column base / exposed-type column base list window is made by clicking the mouse 5 on the main window, the column base / exposed-type column base list window (not shown). ) Is displayed. This column base / exposed-type column base list window is a window generated based on the column base / exposed-type column base list information table. This is a list display screen.

  In addition, since the key plan can be printed, using this key plan as application materials for the building confirmation application procedure makes it easy to explain to the building manager and shortens the application procedure period. It becomes.

  In the first embodiment, the test result can be identified by the display color. However, this is only an example, and it may be a mark, a color tone, a pattern, or the like. From this, it is only necessary that the test results of the bending moment and the shearing force are displayed so that they can be visually identified.

  In the first embodiment, the exposed column base position in the design drawing is replaced with the coordinate system of the key plan so that the exposed column base mark is displayed at that position. However, the design drawing (plan view) remains as it is. A display format developed on the display means 3 may be used.

[Embodiment 2]
20 to 22 illustrate an exposed-type column base design support program according to Embodiment 2 of the present invention. FIG. 20 illustrates an exposed-type column base setting for executing the exposed-type column base design support method. The figure which shows an example of the screen transition in a support program (a solid line arrow shows the flow of a window transition, the broken line arrow shows the flow of data), FIG. 21 is a figure which shows an example of an axial force determination table, FIG. FIG. 23 is a diagram showing an example of a key plan that displays only the result of the compression determination, and FIG. 23 is a diagram showing an example of a display form of the result of the determination of the key plan. The same parts as those in the first embodiment are denoted by the same reference numerals, and a part of the description is omitted.

Since the exposed column base design support program according to the second embodiment visually displays only the result of the compression determination, portions related to the verification in the first embodiment are omitted.
An exposed column base design support system 2 that is a device configuration for executing the exposed column base design support method is the same as the exposed column base design support system 1 (Embodiment 1), and thus description thereof is omitted. .
That is, in FIG. 20, in the exposed column base design support system 2, the strength test table 18 (see FIG. 5) in the exposed column base design support system 1 is replaced with an axial force determination table 71 (see FIG. 21). . Further, the axial force determination table 71 shown in FIG. 21 is obtained by deleting values related to the bending moment and shear force from the yield strength test table 18 shown in FIG.

In the key plan shown in FIG. 22, only the characters “tensile” or “compressed” are displayed on the side of the exposed column base mark displayed in place of the coordinate system of the key plan.
Further, in FIG. 23, the results of the deflation determination are displayed by abbreviated characters, plus / minus symbols, and color coding (whether or not painting is performed).

(Action / Effect)
As described above, according to the second embodiment, the key plan schematically showing the arrangement of the exposed column bases to be pressed is displayed on the display unit 3, and each exposure on the display unit 3 is displayed. As the result of visual identification can be visually identified in the vicinity of the mold column mark, the designer can quickly and easily know which exposed column base of each exposed column base is on the tension side. become able to. Therefore, the time required for the design work can be shortened and the efficiency of the design work can be improved.

The present invention is as described above, and it is possible to improve the efficiency of the design work. Therefore , the exposed type for implementing the exposed column base design support method in the design of various forms of building structures and civil engineering structures. It can be widely used as a column base design support system and an exposed type column base design support program.

Flow chart illustrating an example of a process flow of exemplary engagement Ru Exposure type column base design support program to the first embodiment of the invention. The figure which shows an example of the screen transition in the exposure type column base setting assistance program shown in FIG. The block diagram which shows the structure of the exposure type | mold column base design support system which is an apparatus structure for performing the exposure type column base design support program shown in FIG. The figure which shows a column base and exposure type column base information list table. The figure which shows a stress and proof stress information table. The figure which shows the table for axial force test | inspection. The figure which shows the exposure type | mold column base test | inspection table according to column base axis direction. The figure which shows a column base and a street symbol definition table. Explanatory drawing of the column base arrangement | sequence on a design drawing, and the column base arrangement | sequence on a key plan. The figure which shows an example of a proof test window. The figure which shows an example of a column base and street symbol definition window. The figure which shows the whole key plan figure. The figure which shows the key plan window displayed on the display means (the 1). The figure which shows the key plan window displayed on the display means (the 2). The figure which shows the key plan window displayed on the display means (the 3). The figure which shows the key plan window displayed on the display means (the 4). The figure which shows a color definition table. Explanatory drawing of the output contents of the table displayed on the key plan. The flowchart which shows an example of the flow of a process of a drawing determination in the exposed type column base design assistance program which concerns on Embodiment 1 of this invention. Diagram showing an example of screen transition in the embodiment 2 in engagement Ru Exposure type column base setting support program of the present invention. The figure which shows an example of an axial force determination table. The figure which shows an example of the key plan which displayed only the overwhelming determination result. The figure which shows the example of the display form of the overthrowing determination result of a key plan.

Explanation of symbols

1 Exposed column base the design support system 2 exposed type column base design support system 3 display 5 mice 7 keyboard 9 storage device 13 memory 15 hard disk 16 exposed type column base list table 17 printer 18 Strength test table 20 the symbol definition table 21 Exposed-type column base position definition field 22a field 23 list button 24 input field 25 button 31 symbol input field 32 symbol input field 33 numbering setting support field 34 numbering setting support field 35 clear field 36 axis selection field 37 button 71 axial force determination table

Claims (12)

The axial force acting on each of the plurality of exposed column bases is used to determine whether each exposed column base is on the compression side or the tension side, and the determination result is displayed on the display means. An exposed column base design support system for carrying out an exposed column base design support method that supports the design of an exposed column base ,
Of the axial forces (N) acting under at least one load condition of the long-term load condition, the short-term load condition, or the ultimate load condition, at least one axial force (N) is the reference axial force (N3) under the at least one load condition. ) In the following cases (N3 ≧ N), the exposed column base is determined to be the tension side,
A diagram in which each of the plurality of exposed column bases to be judged is schematically arranged is displayed on the display means,
In the figure on the display means, an exposed column base mark that means the exposed column base corresponding to each of the exposed column bases and the determination result are displayed so as to be visually identifiable. Exposed-type column base design support system for carrying out the exposed-type column base design support method. The determination is characterized in that, when a tensile force is applied to more than half of the plurality of fixing bolts for fixing the exposed column base, the exposed column base is on the tension side. Item 1. The exposed column base design support system according to Item 1. The exposed column base is a four anchor bolt type, and a reference axial force (N3) is determined by the following equation:
N3 = (L2 / D) * N0-2 * T
L2 = (D-2 * d1) / 2
N0 = k * 1.1 * Fc * D * B
However, k = 4/9 (for long term)
k = 2/3 (when short-term)
k = 0.85 (when final)
T = As * F / 1.5 (for long term)
T = As * F (for short-term)
T = Ab * F (at the end)
Here, D: Base plate width B: Base plate depth d1: Distance from center to anchor bolt Fc: Design reference strength of concrete F: Anchor bolt design reference strength As: Effective cross-sectional area of anchor bolt screw part Ab: Anchor The cross-sectional area of the shaft portion of the bolt The determination is made for at least one of the axial forces (N) acting on each of the exposed column bases under at least one load condition of a long-term load condition, a short-term load condition, or an ultimate load condition. The exposed-type column base is determined to be a tension side when the axial force (N) is equal to or less than the reference axial force (N3) under the at least one load condition (N3 ≧ N). 3. The exposed column base design support system according to 1 or 2. The exposed type column base is an eight anchor bolt type, and a reference axial force (N5) is determined by the following equation:
N5 = (L3 / D) * N0-4 * T
L3 = (D-2 * d2) / 2
N0 = k * 1.1 * Fc * D * B
However, k = 4/9 (for long term)
k = 2/3 (when short-term)
k = 0.85 (when final)
T = As * F / 1.5 (for long term)
T = As * F (for short-term)
T = Ab * F (at the end)
here,
D: Base plate width B: Base plate depth d2: Distance from the center to the inner anchor bolt Fc: Design standard strength of concrete F: Anchor bolt design standard strength As: Effective cross-sectional area of anchor bolt screw part Ab: Anchor bolt The determination is made by determining at least one of the axial forces (N) acting on each of the exposed column bases under at least one load condition of a long-term load condition, a short-term load condition, or an ultimate load condition. The exposed column base is determined to be a tension side when the axial force (N) is equal to or less than the reference axial force (N5) under the at least one load condition (N5 ≧ N). Or the exposed type column base design support system of 2 description. 5. The exposed column base design support according to claim 1, wherein visibility is improved by changing a display color of the exposed column base mark or the display indicating the determination result. System . 6. The exposed column base design support system according to claim 1, wherein the exposed column base mark displayed on the display means and the determination result are printed and output as desired. The axial force acting on each of the plurality of exposed column bases is used to determine whether each exposed column base is on the compression side or the tension side, and the determination result is displayed on the display means. An exposed column base design support program for causing a computer to execute an exposed column base design support method for supporting the design of an exposed column base ,
Of the axial forces (N) acting under at least one load condition of the long-term load condition, the short-term load condition, or the ultimate load condition, at least one axial force (N) is the reference axial force (N3) under the at least one load condition. ) In the following cases (N3 ≧ N), the exposed column base is determined to be the tension side,
A diagram in which each of the plurality of exposed column bases to be judged is schematically arranged is displayed on the display means,
In the figure on the display means, an exposed column base mark that means the exposed column base corresponding to each of the exposed column bases and the determination result are displayed so as to be visually identifiable. An exposed column base design support program for causing a computer to execute the exposed column base design support method. The determination is characterized in that, when a tensile force is applied to more than half of the plurality of fixing bolts for fixing the exposed column base, the exposed column base is on the tension side. Item 8. The exposed column base design support program according to Item 7 . The exposed column base is a four anchor bolt type, and a reference axial force (N3) is determined by the following equation:
N3 = (L2 / D) * N0-2 * T
L2 = (D-2 * d1) / 2
N0 = k * 1.1 * Fc * D * B
However, k = 4/9 (for long term)
k = 2/3 (when short-term)
k = 0.85 (when final)
T = As * F / 1.5 (for long term)
T = As * F (for short-term)
T = Ab * F (at the end)
Here, D: Base plate width B: Base plate depth d1: Distance from center to anchor bolt Fc: Design reference strength of concrete F: Anchor bolt design reference strength As: Effective cross-sectional area of anchor bolt screw part Ab: Anchor The cross-sectional area of the shaft portion of the bolt The determination is made for at least one of the axial forces (N) acting on each of the exposed column bases under at least one load condition of a long-term load condition, a short-term load condition, or an ultimate load condition. The exposed-type column base is determined to be a tension side when the axial force (N) is equal to or less than the reference axial force (N3) under the at least one load condition (N3 ≧ N). The exposed column base design support program according to 7 or 8 . The exposed type column base is an eight anchor bolt type, and a reference axial force (N5) is determined by the following equation:
N5 = (L3 / D) * N0-4 * T
L3 = (D-2 * d2) / 2
N0 = k * 1.1 * Fc * D * B
However, k = 4/9 (for long term)
k = 2/3 (when short-term)
k = 0.85 (when final)
T = As * F / 1.5 (for long term)
T = As * F (for short-term)
T = Ab * F (at the end)
here,
D: Base plate width B: Base plate depth d2: Distance from the center to the inner anchor bolt Fc: Design standard strength of concrete F: Anchor bolt design standard strength As: Effective cross-sectional area of anchor bolt screw part Ab: Anchor bolt The determination is made by determining at least one of the axial forces (N) acting on each of the exposed column bases under at least one load condition of a long-term load condition, a short-term load condition, or an ultimate load condition. axial force (N) is, according to claim 7 wherein the reference axis force in the at least one loading condition (N5) in the following cases (N5 ≧ N), the exposed type column base, characterized in that the determining the tensile side or 8, wherein the exposed type column base design support program. Exposed column base design support according to any one of claims 7 to 10, characterized in that enhanced visual visibility by changing the display color of the display indicating the exposed type column base mark or the decision result Program . 12. The exposed column base design support program according to claim 7 , wherein the exposed column base mark displayed on the display means and the determination result are printed and output as desired.

Images