JP5164789B2 - Unit building, unit building structure analysis method and structure analysis apparatus - Google Patents

Description

  The present invention relates to a unit building, a structure analysis method and a structure analysis apparatus for the unit building.

Patent Document 1 below discloses an apparatus for analyzing the structural safety of a building. In this apparatus, a building is developed into frame data of a ramen structure, a structure is calculated based on the frame data, and the result is displayed on a display unit.
JP 2000-57181 A

  However, in the above prior art, since the analysis result is displayed in a table, it is difficult to confirm and determine the structural safety of the building.

  In view of the above facts, an object of the present invention is to obtain a unit building, a unit building structural analysis method, and a structural analysis device capable of easily confirming and determining structural safety.

  The unit building according to the invention of claim 1 has parameters of a load acting on the ceiling girder, a load acting on the floor girder, and a horizontal load acting on the stigma, and the horizontal load acting on the stigma is zero, When the load acting on the floor girder is zero, the value of the maximum allowable load acting on the ceiling girder is the first point, the horizontal load acting on the stigma is zero, and the load acting on the ceiling girder is zero. In the state where the value of the maximum allowable load acting on the floor girder in the case is set as the second point, the horizontal load acting on the stigma between the first point and the second point is zero. When the load acting on the ceiling girder is sequentially moved to the floor girder or between the second point and the first point, the horizontal load acting on the stigma is In this state, when the load acting on the floor girder is sequentially moved to the ceiling girder, the inside of the boundary line formed by continuously maintaining the maximum allowable load of the rigid frame structure is set as the design permissible region. Assume that it was built.

  The unit building according to a second aspect of the present invention is the unit building according to the first aspect, wherein an area inside the boundary line has a ramen performance that decreases with an increase in a horizontal load acting on the capital.

  The structural analysis method for a unit building according to the invention of claim 3 has parameters of a load acting on the ceiling beam, a load acting on the floor beam, and a horizontal load acting on the stigma, and a horizontal force acting on the stigma. When the load is zero and the load acting on the floor girder is zero, the maximum allowable load value of the ceiling girder is the first point, the horizontal load acting on the stigma is zero, and the load acting on the ceiling girder When the value of the maximum allowable load of the floor girder is zero as the second point and the horizontal load acting on the stigma is zero, the ceiling from the first point to the second point When the load acting on the girder is sequentially moved to the floor girder, the inner frame of the boundary line formed by continuously maintaining the maximum permissible load of the ramen structure is set as the design permissible region. Displays an ability view, it shall display the analysis result of the rigid frame structure of interest in the ramen Performance Figure.

  The structural analysis method for a unit building according to the invention of claim 4 has parameters of a load acting on the ceiling beam, a load acting on the floor beam, and a horizontal load acting on the stigma, and a horizontal force acting on the stigma. When the load is zero and the load acting on the floor girder is zero, the maximum allowable load value of the ceiling girder is the first point, the horizontal load acting on the stigma is zero, and the load acting on the ceiling girder In the state where the value of the maximum allowable load of the floor girder in the case of zero is the second point and the horizontal load acting on the stigma is zero, the floor is from the second point to the first point. When the load acting on the girder is sequentially moved to the ceiling girder, the inner side of the boundary line formed by continuously maintaining the maximum permissible load of the ramen structure is set as the design permissible region. Displays an ability view, it shall display the analysis result of the rigid frame structure of interest in the ramen Performance Figure.

  According to a fifth aspect of the present invention, in the structural analysis method for a unit building according to the fourth aspect, distributed loads based on specifications of the ceiling beam, the floor beam, and the stigma are included in the design allowable region. Is judged as “appropriate”.

  According to a sixth aspect of the present invention, in the structural analysis method for a unit building according to the fourth aspect, distributed loads based on specifications of the ceiling beam, the floor beam, and the stigma are included in the design allowable region. If not, it is determined as “unsuitable”.

  A structural analysis apparatus according to a seventh aspect of the present invention is a structural analysis apparatus in which the structural analysis method for a unit building according to any one of the third to sixth aspects is implemented, and the specification of the ramen structure body An input unit to which information is input; a ramen shaft unfolding unit that unfolds the frame model of the ramen structure based on the specification information; and a load acting on a ceiling beam in the frame model of the ramen structure In addition, a structure calculation unit that creates a ramen performance diagram in which the inner side of the boundary line is a design permissible region based on a load acting on the floor beam and a horizontal load acting on the stigma, and analyzing the ramen structure, And a display device for displaying the design allowable region of the boundary line and displaying the analysis result of the ramen structure.

  According to the first aspect of the present invention, there are parameters of the load acting on the ceiling beam, the load acting on the floor beam, and the horizontal load acting on the stigma, and the horizontal load acting on the stigma is zero. The value of the maximum allowable load of the ceiling beam when the load acting on the floor beam is zero is taken as the first point. Further, the second point is the value of the maximum allowable load of the floor girder when the horizontal load acting on the stigma is zero and the load acting on the ceiling girder is zero. When the load acting on the ceiling girder is sequentially moved to the floor girder while the horizontal load acting on the stigma is zero between the first point and the second point, the maximum allowable frame structure A design allowable region is an inner side of a boundary line (performance curved surface of the ramen structure) formed by continuously maintaining a value capable of maintaining a load. Or, when the load acting on the floor girder is sequentially moved to the ceiling girder while the horizontal load acting on the stigma is zero between the second point and the first point, the maximum allowable ramen structure A design allowable region is an inner side of a boundary line (performance curved surface of the ramen structure) formed by continuously maintaining a value capable of maintaining a load. As a result, the structural safety of the frame structure constituting the unit building can be easily confirmed visually.

  According to the second aspect of the present invention, the region inside the boundary line has a ramen performance that decreases with an increase in the horizontal load acting on the stigma, and the structural safety of the ramen structure is three-dimensional. It can be visualized as a curved surface.

  According to the third aspect of the present invention, the load has a parameter of a load acting on the ceiling beam, a load acting on the floor beam, and a horizontal load acting on the stigma, and the horizontal load acting on the stigma is zero. The value of the maximum allowable load of the ceiling beam when the load acting on the floor beam is zero is taken as the first point. Further, the second point is the value of the maximum allowable load of the floor girder when the horizontal load acting on the stigma is zero and the load acting on the ceiling girder is zero. When the horizontal load acting on the stigma is zero and the load acting on the ceiling girder is sequentially moved from the first point to the second point on the floor girder, the maximum allowable load of the frame structure is maintained. A ramen performance diagram with the inside of the boundary line formed by continuously forming possible values as a design allowable region is displayed, and an analysis result of the target ramen structure is displayed on the ramen performance diagram. Thereby, the structural safety of the ramen structure can be easily confirmed visually depending on whether the analysis result of the ramen structure in the ramen performance diagram is within the design allowable range.

  According to the fourth aspect of the present invention, the load has a parameter of a load acting on the ceiling beam, a load acting on the floor beam, and a horizontal load acting on the stigma, and the horizontal load acting on the stigma is zero. The value of the maximum allowable load of the ceiling beam when the load acting on the floor beam is zero is taken as the first point. Further, the second point is the value of the maximum allowable load of the floor girder when the horizontal load acting on the stigma is zero and the load acting on the ceiling girder is zero. When the load acting on the floor girder is sequentially moved from the second point to the first point with the horizontal load acting on the stigma being zero, the maximum allowable load of the frame structure is maintained. A ramen performance diagram with the inside of the boundary line formed by continuously forming possible values as a design allowable region is displayed, and an analysis result of the target ramen structure is displayed on the ramen performance diagram. Thereby, the structural safety of the ramen structure can be easily confirmed visually depending on whether the analysis result of the ramen structure in the ramen performance diagram is within the design allowable range.

  According to the fifth aspect of the present invention, when the distributed load based on the specifications of the ceiling beam, the floor beam and the stigma is included in the design allowable region in the ramen performance diagram, it is determined as “appropriate”. For this reason, the structural safety of the ramen structure can be more easily confirmed visually.

  According to the present invention described in claim 6, when the distributed loads based on the specifications of the ceiling beam, the floor beam and the stigma are not included in the design allowable region in the ramen performance diagram, it is determined as “unsuitable”. . For this reason, the structural safety of the ramen structure can be more easily confirmed visually.

  According to the seventh aspect of the present invention, the specification information of the rigid frame structure is input by the input unit, and the frame model of the rigid frame structure is expanded based on the specification information by the frame frame expansion unit. Furthermore, in the structural calculation unit, based on the load acting on the ceiling beam, the load acting on the floor beam and the horizontal load acting on the stigma in the frame model of the frame structure, the frame inside the boundary is the design allowable area. A performance diagram is created, and a ramen structure is analyzed. The design allowable area of the boundary line is displayed on the display device, and the analysis result of the ramen structure is displayed. Accordingly, the unit building structural analysis method according to any one of claims 3 to 6 is implemented, and whether or not the analysis result of the ramen structure is in the design allowable region inside the boundary line. The structural safety of the ramen structure can be visually confirmed.

  As described above, the unit building according to the first aspect of the present invention has an excellent effect that the structural safety of the ramen structure can be easily confirmed and determined visually.

  The unit building according to the second aspect of the present invention has an excellent effect that the structural safety of the ramen structure can be visualized as a three-dimensional curved surface.

  The structural analysis method for a unit building according to the third aspect of the present invention has an excellent effect that the structural safety of the ramen structure can be easily confirmed and judged visually.

  The structural analysis method for a unit building according to the present invention described in claim 4 has an excellent effect that the structural safety of the ramen structure can be easily confirmed and judged visually.

  The structural analysis method for a unit building according to the present invention described in claim 5 has an excellent effect that the structural safety of the ramen structure can be visually confirmed and determined more easily.

  The structural analysis method for a unit building according to the present invention described in claim 6 has an excellent effect that the structural safety of the ramen structure can be visually confirmed and determined more easily.

  The structural analysis apparatus according to the present invention described in claim 7 has an excellent effect that the structural safety of the ramen structure can be easily confirmed and judged visually.

  Hereinafter, an embodiment of a unit building according to the present invention will be described with reference to FIGS.

  FIG. 1 is a perspective view of a unit building according to the present embodiment. As shown in this figure, the unit building 10 is a two-story unit house composed of a plurality (eight in this embodiment) of building units 12. The unit building 10 is constructed by producing a plurality of box-type building units 12 at a factory, then carrying these building units 12 to the site and sequentially installing them with a crane.

  The building unit 12 includes a ceiling frame 24 and a floor frame 26 assembled in a rectangular frame shape, and is configured such that four pillars 14 are erected between them. The ceiling frame 24 includes ceiling joints (columns) 28 at four corners, and ends of the ceiling beams 16 having different lengths are welded to the ceiling joints 28.

  Similarly, the floor frame 26 is provided with floor joints (columns) 29 at four corners, and ends of the longitudinal beams 20 having different lengths are welded to the floor joints 29.

  The building unit 12 is configured as a ramen structure by the upper and lower ends of the column 14 being rigidly joined by welding between the ceiling joint portion 28 and the floor joint portion 29 that are arranged to face each other vertically. Is done. However, the unit configuration is not limited to the above, and other box-type structures may be used. In this embodiment, channel steel (grooved steel) having a U-shaped cross section is used for the ceiling beam 16 and the floor beam 20.

  An upper floor is formed by sequentially installing a plurality of building units 12 on a lower floor composed of a combination of a plurality of building units 12, and a unit building 10 having a plurality of floors (multiple layers) is constructed. can do. Although FIG. 1 shows a unit building 10 on the second floor (two layers), a unit building on the third floor (three layers) or more can be constructed.

  FIG. 2 shows a functional block diagram of a structural analysis apparatus used for structural analysis of the unit building 10 according to the present embodiment. As shown in this figure, the structural analysis device 30 includes a central processing unit 31. The central processing unit 31 includes a ramen definition unit 32, a ramen shaft unfolding unit 34, a structure calculation unit 36, and output control. Part 38. The structural analysis device 30 includes a member performance database 40 stored in the storage device and a ramen definition data file 42 stored in the storage device. Further, the structural analysis device 30 includes a keyboard 44 as an input unit and a mouse 46 connected to the keyboard 44, a result data file 48 in which analysis results are stored, a monitor 50 as a display device, a printer 52, It has.

  Data from the keyboard 44 is input to the ramen definition unit 32. The data output from the ramen definition unit 32 is input to the ramen definition data file 42 and the output control unit 38, respectively. Data output from the ramen definition data file 42 is input to the ramen shaft unfolding unit 34, and data output from the ramen shaft unfolding unit 34 is input to the structure calculating unit 36. Data output from the member performance database 40 is input to the structure calculation unit 36, and data output from the structure calculation unit 36 is input to the result data file 48. Further, data output from the result data file 48 is input to the output control unit 38, and data output from the output control unit 38 is input to the monitor 50 and the printer 52, respectively.

  This structural analysis device 30 is a device used for structural analysis of the frame structure constituting the building unit 12, and confirms the structural safety of the unit building 10 during the basic design before the detailed design of the unit building 10 is performed. To do. When one or more of the three parameters of the load acting on the target ramen structure is changed, the target ramen structure is displayed on the performance surface of the ramen structure shown in FIG. The structural safety of the ramen structure can be confirmed.

  Next, a process of illustrating the possessing performance of the ramen structure constituting the building unit 12 will be described.

The following loads are mainly applied to the ramen structure constituting the building unit 12. They are,
(1) Uniformly distributed load acting on the ceiling beam 16
(2) Uniformly distributed load acting on the floor girder 20
(3) A horizontal load acting on the stigma (upper end of the pillar 14). In addition, when the unit building 10 is set back on the indoor side, when a middle pillar is provided, or when a pillar is not used, there is a concentrated load.

  FIG. 3 is a perspective view of the performance curved surface of the rigid frame structure using the above three parameters (1) to (3) as parameters. As shown in this figure, (1) the uniform load acting on the ceiling beam 16 is the X axis, (2) the uniform load acting on the floor beam 20 is the Y axis, and (3) the stigma (the upper end of the column 14). The horizontal load acting on the Z-axis is used as the Z-axis, and the stress analysis is performed using the three loads as parameters, thereby creating a performance curved surface of the rigid frame structure. The performance curved surface of the rigid frame structure is a substantially quadrangular pyramid-shaped three-dimensional curved surface with the above three parameters as axes. The performance curved surface is a concept including a plane.

  Specifically, as shown in FIG. 3, the value of the maximum allowable load of the ceiling beam 16 when the horizontal load acting on the stigma (the upper end portion of the column 14) is zero and the load of the floor beam 20 is zero. The first point 60 is assumed. The value of the maximum allowable load of the floor girder 20 when the horizontal load acting on the column head (the upper end of the column 14) is zero and the load of the ceiling girder 16 is zero is defined as a second point 62. Then, the load acting on the ceiling beam 16 was sequentially moved to the floor beam 20 from the first point 60 to the second point 62 in a state where the horizontal load acting on the stigma (the upper end portion of the column 14) was zero. At this time, by continuously forming values that can maintain the maximum allowable load of the ramen structure, the performance curve 64 of the ramen structure as a boundary line is formed. The right side of the figure from the corner of the performance curve 64 is a value determined by the both ends of the ceiling beam 16 reaching an allowable value, and the left side of the figure from the corner of the performance curve 64 at the both ends of the floor beam 20 reaches the allowable value. This value is determined by The corner portions (intersection points) of the performance curve 64 are in a state where these occur simultaneously.

  The load acting on the floor girder 20 was sequentially moved to the ceiling girder 16 from the second point 62 to the first point 60 with the horizontal load acting on the stigma (upper end of the column 14) being zero. In some cases, the performance curve 64 of the rigid frame structure as a boundary line may be formed by continuously forming values that can maintain the maximum allowable load of the rigid frame structure.

  FIG. 3 shows a three-dimensional curved surface when the interlayer deformation angle is 1/150 and when the interlayer deformation angle is 1/200. Here, the interlayer deformation angle is an angle represented by δ / h, where h is the unit height and δ is the amount of interlayer deformation (length). The region inside the performance curve 64 (boundary line) of the rigid frame structure (the region surrounded by the performance curve 64, the X axis, and the Y axis) increases the horizontal load acting on the stigma (upper end of the column 14). Has a reduced ramen performance

  FIG. 4 shows the performance curve 64 (boundary line) of the ramen structure when the interlayer deformation angle is 1/200, and the interlayer deformation angle 1/150 when cut at a specific Z coordinate. In this case, the performance curve 65 (boundary line) of the ramen structure is shown. The performance curve is a concept including a straight line. As shown in this figure, the portion surrounded by the X-axis and Y-axis and the performance curve (inner region including the performance curve) is a structurally safe OK zone (“suitable”), and the outer region of the performance curve. Represents an NG zone (“unsuitable”). Accordingly, if the loads on the ceiling beam 16 and the floor beam 20 are known, it is possible to immediately determine the structural safety of the rigid frame structure. At that time, the structural safety of the ramen structure can be determined by visually grasping the analysis result of the ramen structure from the figure (ramen performance chart) of the performance curve 64 (boundary line) of the ramen structure.

  Next, a processing flow of the entire system in the structural analysis of the rigid frame structure performed by the structural analysis apparatus 30 will be described. FIG. 5 is a flowchart showing a flow of processing for confirming and determining the structural stability of the ramen structure.

  In step 70 of FIG. 5, the operator uses the keyboard 44 of the structural analysis device 30 to input the number of ramen structures (the number of laminated frames). As a result, data input by the operator is taken into the ramen definition unit 32 of the structural analysis device 30. As the number of floors, for example, any one of the first to third floors is input while viewing the screen displayed on the monitor 50 of the structural analysis device 30. The rank data captured by the ramen definition unit 32 is input to the output control unit 38, displayed on the monitor 50 of the structural analysis device 30, and input to the ramen definition data file 42.

  In the next step 72, the operator similarly inputs the ramen shape of each floor using the keyboard 44 of the structural analysis device 30. Data input by the operator is taken into the ramen definition unit 32 of the structural analysis device 30. In the present embodiment, a plurality of ramen shapes called from the ramen definition data file 42 of the structural analysis device 30 are displayed on the monitor 50, and input by selecting an arbitrary ramen shape from the plurality of ramen shapes. Is set to

  In the next step 74, the operator similarly inputs the ramen size (span / floor height) of each floor using the keyboard 44 of the structural analysis device 30. Data input by the operator is taken into the ramen definition unit 32 of the structural analysis device 30. In this embodiment, the ramen size is set to be performed by selecting an arbitrary span / floor height from a plurality of spans (lengths) and a plurality of floor heights displayed on the monitor 50 of the structural analysis device 30. Has been. In the next step 76, similarly, using the keyboard 44 of the structural analysis device 30, the thicknesses of the columns and beams of the ramen on each floor are input. The data signal input in steps 72 to 76 is input from the ramen definition unit 32 to the ramen definition data file 42. The data signal output from the ramen definition data file 42 is input to the ramen shaft unfolding unit 34.

  Furthermore, in steps 78 to 84, each function of the functional block diagram is executed by software in the central processing unit 31 of the structural analysis device 30 based on the data input in the above steps 72 to 76. First, in step 78, based on the data input in the above steps 72 to 76, an analysis axis model is created by the ramen axis development unit 34 of the structural analysis device 30. The generated analysis axis model signal is input to the structure calculation unit 36 of the structure analysis apparatus 30. In the next step 80, allocation of each member performance value (rigidity / proof strength) is performed. The allocation of each member performance value (rigidity / proof strength) is performed by being drawn from the member performance database 40 of the structural analysis device 30.

  In the next step 82, stress analysis at the time of unit load of each part of the analysis framework model is performed. The stress analysis is performed by the structure calculation unit 36 of the structure analysis apparatus 30. In the next step 84, a performance curved surface of the ramen structure is created based on the ramen performance diagram as shown in FIG. The performance curved surface of the ramen structure is created by the structure calculation unit 36 of the structure analysis device 30. Steps 78 to 84 are executed by software, but may be executed by hardware.

  In the next step 86, when the operator inputs an instruction to save the performance curved surface and analysis result data of the ramen structure from the keyboard 44, the performance curved surface and analysis result data of the ramen structure are converted into the result data of the structural analysis device 30. Saved in file 48. The performance curved surface and analysis result data of the rigid frame structure are input to the output control unit 38 of the structural analysis device 30 and displayed on the monitor 50. The performance curved surface and analysis result data of the ramen structure can also be output by the printer 52 in response to an output instruction from the keyboard 44.

  As shown in FIG. 4, when the analysis result of the ramen structure is in a portion surrounded by the performance curve 64, the X axis, and the Y axis (an internal region including the performance curve 64), it is structurally safe. If the analysis result of the ramen structure is in the outer region of the performance curve 64, it is an NG zone. Thus, if the loads on the ceiling beam 16 and the floor beam 20 are known, the structural safety of the rigid frame structure can be easily determined or confirmed.

  As described above, the performance of the ramen structure can be expressed with versatility by plotting the performance of the ramen structure as shown in FIG. In addition, by using the performance chart of the rigid frame structure (ramen performance chart), it is possible to conduct cost analysis such as how much the thickness variation will occur in the new specification by prior examination when setting the load of the new specification. . Moreover, it can be easily confirmed whether the ramen structure which comprises the unit building 10 is overdesigned. In addition, it is easy to determine or confirm the structural safety when the load condition acting on the ramen structure is changed during extension or remodeling or application change. In addition, it will be easier to determine (whether or not it is ineligible) the conformity with existing laws after the revision of the Building Standards Law.

  In the above-described embodiment, the floor number, each floor ramen shape, each floor ramen size, and each floor ramen column beam thickness are input according to the flowchart shown in FIG.

It is a perspective view which shows the unit building which concerns on one Embodiment. It is a block diagram of the structural analysis apparatus used for the structural analysis of the frame structure which comprises the unit building which concerns on one Embodiment. It is a three-dimensional view showing a performance diagram of a rigid frame structure constituting a unit building according to an embodiment. It is a graph which shows the performance curve of the rigid frame structure which cut off the performance figure of the rigid frame structure shown in FIG. 3 by the specific Z-axis. It is a flowchart which shows the flow of the process for confirming the structural stability of the ramen structure which concerns on one Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Unit building 12 Building unit 14 Column 16 Ceiling girder 20 Floor girder 30 Structural analysis apparatus 34 Ramen frame deployment part 36 Structure calculation part 44 Keyboard (input part)
46 Mouse (input unit)
50 Monitor (display device)
60 First point 62 Second point 64 Performance curve

Claims (7)

It has parameters of the load acting on the ceiling beam, the load acting on the floor beam, and the horizontal load acting on the stigma.
The horizontal load acting on the stigma is zero, the maximum allowable load acting on the ceiling girder when the load acting on the floor girder is zero is the first point,
The horizontal load acting on the stigma is zero, the maximum allowable load acting on the floor girder when the load acting on the ceiling girder is zero is the second point,
Between the first point and the second point, with the horizontal load acting on the stigma being zero, when the load acting on the ceiling girder is sequentially moved to the floor girder,
Or, when the load acting on the floor girder is sequentially moved to the ceiling girder in a state where the horizontal load acting on the stigma is zero between the second point and the first point,
A unit building constructed with the design allowable area inside the boundary line formed by continuously maintaining the maximum allowable load of the rigid frame structure.   The unit building according to claim 1, wherein a region inside the boundary line has a ramen performance that decreases with an increase in a horizontal load acting on the capital. It has parameters of the load acting on the ceiling beam, the load acting on the floor beam, and the horizontal load acting on the stigma.
The horizontal load acting on the stigma is zero, the maximum allowable load value of the ceiling girder when the load acting on the floor girder is zero is the first point,
The horizontal load acting on the stigma is zero, the maximum allowable load value of the floor girder when the load acting on the ceiling girder is zero is the second point,
When the load acting on the ceiling girder is sequentially moved to the floor girder from the first point to the second point with the horizontal load acting on the stigma being zero, the maximum allowable frame structure A ramen performance diagram with the design allowable area inside the boundary line formed by continuously maintaining the load can be displayed, and the analysis result of the target ramen structure is displayed on the ramen performance diagram. Structural analysis method. It has parameters of the load acting on the ceiling beam, the load acting on the floor beam, and the horizontal load acting on the stigma.
The horizontal load acting on the stigma is zero, the maximum allowable load value of the ceiling girder when the load acting on the floor girder is zero is the first point,
The horizontal load acting on the stigma is zero, the maximum allowable load value of the floor girder when the load acting on the ceiling girder is zero is the second point,
When the horizontal load acting on the stigma is zero and the load acting on the floor girder is sequentially moved from the second point to the first point on the ceiling girder, the maximum allowable frame structure A ramen performance diagram with the design allowable area inside the boundary line formed by continuously maintaining the load can be displayed, and the analysis result of the target ramen structure is displayed on the ramen performance diagram. Structural analysis method.   5. The structural analysis method for a unit building according to claim 4, wherein when the distributed load based on the specifications of the ceiling beam, the floor beam, and the stigma is included in the design allowable region, it is determined as “appropriate”. .   5. The structural analysis of a unit building according to claim 4, wherein a distribution load based on the specifications of the ceiling beam, the floor beam, and the stigma is determined as “inappropriate” when it is not included in the design allowable region. Method. A structural analysis device in which the structural analysis method for a unit building according to any one of claims 3 to 6 is implemented,
An input unit for inputting the specification information of the ramen structure;
Based on the specification information, a ramen shaft unfolding unit for unfolding the frame model of the ramen structure,
Based on the load acting on the ceiling girder, the load acting on the floor girder, and the horizontal load acting on the stigma in the frame model of the ramen structure, create a ramen performance diagram where the inside of the boundary is the design allowable area And a structural calculation unit for analyzing the ramen structure,
A display device for displaying the design allowable region of the boundary line and displaying the analysis result of the ramen structure;
Structural analysis apparatus having

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