JP7210252B2 - Structural calculation support system and program - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structural calculation support system and program for structural calculation of a building.

Conventionally, when designing a building, structural calculations (strength studies) are performed at all times and during earthquakes, and the resistance and deformation of each part are calculated. A structural calculation support system (program) is used to perform such calculations. Structural calculation is performed by inputting necessary data into the system.

As such a structural calculation support system, for example, there is a design support system in which a design verification support device and a design change device exchange data by communication (Patent Document 1).

On the other hand, in structures, a deck plate that serves as both a concrete floor slab formwork and a structure may be used. In the conventional design support system, instead of inputting the rigidity value of the steel frame beam of the structure in the structural calculation of the structure using such a deck plate, the steel frame beam and concrete are integrated in advance. Structural calculation of the structure was performed by separately calculating the stiffness value of the composite beam (for example, Patent Document 2) and inputting this stiffness value.

Japanese Patent Application Laid-Open No. 2002-230045 JP 2012-12788 A

In such a conventional structural design support system, it is necessary to input a lot of information used for calculation. For this reason, it is required to omit the labor of inputting as much as possible. In addition, a separate calculation process for determining the rigidity of the composite beam was required, which was time-consuming.

In addition, in the conventional design support system, in the frame calculation of the structure, the integrated structure calculation is performed using only the cross-sectional data of the input steel beam, and it is separately examined whether the horizontal buckling failure of the beam will occur. Judged the validity of the calculation of things. However, the examination of the lateral buckling failure of the beam was done separately from the frame calculation of the structure, so it took time and effort.

The present invention has been made in view of such problems, and provides a structural calculation support system and program for structural calculation of a building that can reduce the labor of inputting information and the labor of separate calculations. intended to

In order to achieve the aforementioned object, a first invention is a program capable of calculating the rigidity of a composite beam in which a floor slab and a steel frame beam are integrated by a computer, wherein shape information of the beam is input to the computer. beam information input means; deck plate type selection means for selecting the type of deck plate; floor slab information acquisition means for calculating or acquiring floor slab information corresponding to the selected deck plate type from a storage unit; stiffness information calculating means for calculating stiffness information of a composite beam obtained by synthesizing the beam and the floor slab based on the shape information of and the floor slab information; stiffness information output means for outputting the stiffness information of the composite beam; The beam information input means inputs the arrangement information of both the large beams and the small beams, and the floor slab information acquisition means calculates the direction of the deck plate from the shape of the space surrounded by the large beams and the small beams. and acquires the floor slab information corresponding to the direction, the deck plate has a strength against bending in the longitudinal direction that is greater than the strength against bending in the short side, and the floor slab information acquiring means comprises: 4 The program is characterized by determining the direction perpendicular to the small beam as the longitudinal direction of the deck plate for each area surrounded by the pillars of the book .
The rigidity information output means may output the costs of the parts used by linking unit price information to each part.
The stiffness information output means may further display results calculated under a plurality of conditions at the same time.

The rigidity information calculation means acquires from the storage unit basic composite beam stiffness information calculated in advance corresponding to the shape information of the beam and the floor slab information, and determines the composite beam based on the basic stiffness information of the composite beam. It is desirable to calculate stiffness information.

The storage unit stores a plurality of types of beam shape information, and the beam information input means can select and input beam shape information stored in the storage unit. good.

Appropriate beam type information corresponding to the type of the deck plate is linked and stored in the storage unit, and the beam shape information input by the beam information input means and the appropriate beam type information are stored. and a deck plate type selecting means for selecting a deck plate type that matches the shape information of the beam, and the deck plate type selecting means selects the deck plate types selected by the deck plate type selecting means. , the deck plate type may be selectable.

The stiffness information calculation means may calculate at least one of bending strength information of the composite beam, shear strength information of the composite beam, or lateral buckling strength information of the composite beam, in addition to the rigidity information of the composite beam.

Acquisition of required stiffness information of the structure required for the structure according to the type or use of the structure, and the stiffness information output means outputs a comparison result between the calculated stiffness information of the composite beam and the required stiffness information. It may be possible to output.

It is possible to acquire the strength information of the shear connector that integrates the beam and the floor slab, and calculate the required number of shear connectors from the rigidity information of the composite beam and the strength information of the shear connector. good too.

According to the first invention, when calculating the strength characteristics of a beam, by inputting the types of the beam and the deck plate, the strength characteristics can be calculated as a composite beam that takes into account the strength characteristics of the concrete placed on the deck plate. can be calculated. Therefore, a separate calculation or the like is unnecessary, and an appropriate structural calculation can be performed.

In addition, as a method to calculate the stiffness information of composite joists, instead of calculating the stiffness of composite joists from scratch from beam shape information and floor slab information each time, composite joists corresponding to beam shape information and floor slab information By storing the basic rigidity information in advance in the storage unit and multiplying the composite beam basic rigidity information by parameters such as the width and length of the beam, for example, the rigidity information of the composite beam can be easily calculated.

Further, when inputting beam shape information, beam information can be easily input by selecting from a plurality of pieces of beam shape information stored in advance in the storage unit.

In addition, by linking the appropriate beam type information corresponding to the type of deck plate in advance, the deck plate type that matches the input beam can be selected, and the deck plate type can be selected from among them. , it becomes easy to select a desired deck plate from a large number of deck plate types.

Also, in addition to the stiffness information of composite girders, by calculating at least one of the bending strength information of composite girders, the shear strength information of composite girders, or the lateral buckling strength information of composite girders, more accurate structural calculation can be performed once. can be done.

In addition, by determining the direction of the deck plate from the shape of the space surrounded by the large beam and the small beam, it is not necessary to input the direction of the deck plate, and the trouble of inputting the direction of the deck plate can be saved. . Also, once the orientation of the deck plate is determined, the input of calculation conditions such as the floor load transmission direction can be omitted.

In addition, by comparing the required rigidity of the structure required for the structure according to the type or use of the structure and the calculated rigidity information of the composite beam, it is possible to determine how safe the calculated rigidity of the structure is. It is possible to easily determine whether it is a ratio or whether the selection of beams or the like is appropriate.

Also, by setting in advance the strength information of the shear connectors that integrate the beams and the floor slab, it is possible to grasp the required number of shear connectors necessary for the rigidity of the composite beam.

A second invention is a structural calculation support system capable of calculating the rigidity of a composite beam in which a floor slab and a steel frame beam are integrated by a computer, comprising a beam information input means for inputting beam shape information, and a deck plate. deck plate type selection means for selecting a type; floor slab information acquisition means for calculating or acquiring floor slab information corresponding to the deck plate type from a storage unit; beam shape information; composite beam stiffness information calculating means for calculating stiffness information of a composite beam obtained by combining the beam and the floor slab, and composite beam stiffness information output means for outputting the rigidity information of the composite beam. , the beam information input means inputs the arrangement information of both the large beams and the small beams, and the floor slab information acquisition means determines the direction of the deck plate from the shape of the space surrounded by the large beams and the small beams. , the floor slab information corresponding to the direction is acquired, the deck plate has a strength against bending in the longitudinal direction greater than the strength against bending on the short side, and the floor slab information acquiring means comprises four pillars. The structural calculation support system is characterized in that the direction perpendicular to the small beam is determined as the longitudinal direction of the deck plate for each region enclosed by .

According to the second invention, it is possible to provide a structural calculation support system capable of reducing input effort.

Advantageous Effects of Invention According to the present invention, it is possible to provide a structural calculation support system and a program for structural calculation of a building, which can reduce the trouble of inputting information and the trouble of separate calculation.

FIG. 2 is a perspective view showing the deck plate 1; (a) is a plan view showing the arrangement of a pillar 9, a large beam 11 and a small beam 13, and (b) is a plan view showing a state in which the deck plate 1 is arranged. The side view which shows the state which built the floor slab 15. FIG. 2 is a diagram showing the hardware configuration of a structural calculation support system 20; FIG. 4 is a flowchart showing processing of the structural calculation support system 20;

A structural calculation support system according to an embodiment of the present invention will be described below. FIG. 1 is a perspective view showing a deck plate 1. FIG. The deck plate 1 is composed of a plate 3, main reinforcing bars 5, auxiliary reinforcing bars 7, and the like.

The plate 3 is, for example, a steel plate formed with fine corrugations. A main reinforcing bar 5 is arranged and fixed along the longitudinal direction of the plate 3 . Further, a sub-reinforcing bar 7 is fixed at a predetermined angle with respect to the main reinforcing bar 5 . The deck plate 1 constructed in this way has a greater strength against bending in the longitudinal direction (A in the figure) than against bending in the lateral direction (B in the figure). That is, the deck plate 1 has different strength characteristics depending on its direction.

2A and 2B are plan views showing the arrangement of the deck plate 1, FIG. It is a figure which shows the state which carried out. As shown in FIG. 2( a ), large beams 11 are arranged between the four pillars 9 . A plurality of small beams 13 are fixed substantially parallel to the large beams 11 between the opposing large beams 11 .

When the small beams 13 are arranged in this manner, the distance between the small beams 13 (E in the figure) is shorter than the distance between the large beams 11 in the direction orthogonal to this (D in the figure). In this case, the deck plate 1 is arranged with the longitudinal direction of the deck plate 1 being the direction perpendicular to the small beams 13, which is the direction in which the distance between the beams is short. In FIG. 2(a), if the small beam 13 is not provided, the distance between the opposing large beams 11 (C or D in the figure), the direction with the shortest distance (for example, D in the figure) is the deck. The longitudinal direction of the plate 1 is assumed. By arranging in this way, it is advantageous to the strength of the structure and the like.

A plurality of shear connectors 17 are joined to the upper surface of the girders 11 . By using such a shear connector 17, the inertial force acting on the floor can be transmitted to the girder 11 even during an earthquake, and the floor slab can be securely fixed to the girder 11. In addition, since the upper flange of the steel beam made of H steel can be integrated with the floor slab, the floor slab contributes to the bending resistance of the steel beam as a composite beam combined with concrete, improving the rigidity as a whole. can be made

FIG. 3 shows a state in which concrete is placed above the deck plate 1 arranged in this way to construct a floor slab 15 . The floor slab 15 is integrated with the deck plate 1 and the girders 11 (shear connectors 17) and the like. Structural calculations are performed for the structural framework (pillars 9, large beams 11, small beams 13) and floor slab 15 in this state, and it is possible to confirm whether or not they have the desired bearing strength.

Next, a structural calculation support system for performing the above structural calculation will be described. FIG. 4 is a hardware configuration diagram showing the structural calculation support system 20. As shown in FIG. The structural calculation support system 20 is, for example, a computer, and includes a control unit 23, a storage unit 25, a media input/output unit 27, a communication control unit 29, an input unit 31, a display unit 33, a peripheral device I/F unit 35, and the like. , they are connected via a bus 37 .

The control unit 23 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like. The CPU calls a program stored in the storage unit 25, ROM, recording medium, etc. to a work memory area on the RAM and executes it, drives and controls each device connected via the bus 37, and operates the structural calculation support system 20. implements the processing performed by

The ROM is a non-volatile memory that permanently holds programs such as a computer boot program and BIOS, data, and the like. The RAM is a volatile memory that temporarily holds programs, data, and the like loaded from the storage unit 25, ROM, recording medium, etc., and has a work area that the control unit 23 uses to perform various processes.

The storage unit 25 is an HDD (Hard Disk Drive) or SSD (Solid State Drive), and stores programs executed by the control unit 23, data necessary for executing the programs, an OS (Operating System), and the like. As for programs, a control program corresponding to an OS (Operating System) and an application program corresponding to later-described processing are stored. These program codes are read by the control unit 23 as necessary, transferred to the RAM, read by the CPU, and executed as various means.

In addition, various data used in the present invention are stored in the storage unit 25 . For example, the strength characteristics of the columns 9, the large beams 11 and the small beams 13, the type of the deck plate, the strength characteristics in the longitudinal direction and the width direction of the deck plate 1, the floor slab information corresponding to the deck plate type, the beam It stores basic composite beam rigidity information corresponding to shape information and floor slab information, appropriate beam type information corresponding to the type of deck plate, required rigidity information of structures, strength information of shear connectors, and the like.

The media input/output unit 27 (drive device) inputs and outputs data, and includes, for example, a floppy (registered trademark) disk drive, a CD drive (-ROM, -R, RW, etc.), a DVD drive (-ROM, -R, -RW, etc.), and has a media input/output device such as an MO drive.

The communication control unit 29 has a communication control device, a communication port, etc., and is a communication interface that mediates communication between the computer and the network.

The input unit 31 inputs data, and includes input devices such as a keyboard, a pointing device such as a mouse, and a numeric keypad. Via the input unit 31, operation instructions, operation instructions, data input, etc. can be given to the computer.

The display unit 33 has a display device such as a CRT monitor and a liquid crystal panel, and a logic circuit (video adapter, etc.) for realizing the video function of the computer in cooperation with the display device.

A peripheral device I/F (interface) unit 35 is a port for connecting a peripheral device to the computer, and the computer transmits and receives data to and from the peripheral device via the peripheral device I/F unit 35 .

A bus 37 is a path through which control signals, data signals, etc. are transferred between devices. Here, the structural calculation support system 20 is not limited to include all of the above configurations, and may have only the configuration necessary to achieve the functions of the present invention. For example, a mobile terminal including a part of the configuration described above can also be applied.

Next, the operation of the structural calculation support system 20 will be described. FIG. 5 is a flow chart showing the operation of the structural calculation support system 20. As shown in FIG. The structural calculation support system 20 calculates the yield strength, deformation, etc. of a building at all times and during an earthquake, and can confirm whether or not the structure has the desired strength.

(Step 101)
As described above, the structural calculation support system 20 is executed by a computer with a program capable of calculating the stiffness of composite beams in which floor slabs and steel beams are integrated. First, the input unit 31 inputs the type (or application) of the structure to be calculated, and the arrangement information and shape information of the columns 9 and beams (both the large beams 11 and the small beams 13) (beam information input means). .

The type of structure is, for example, a building such as a warehouse in which heavy objects are stored, or a building in which a vehicle runs, and can be selected using a pull-down menu, for example. Note that the storage unit 25 stores required stiffness information required for each structure according to the type of each structure. For example, in the case of a building in which a vehicle or the like runs, the required rigidity is set higher than that of a residential building.

The beam shape information is input for each of the large beam 11 and the small beam 13 . The beam shape information is information about the cross-sectional shape and length of the beam. Based on the beam shape information, the control unit 23 can calculate the section modulus, rigidity, and strength of the beam. The shape information of the beam may be the model number and size of the member used, or the strength etc. corresponding to the shape of the beam may be directly input. Alternatively, a plurality of types of beam shape information may be stored in the storage unit 25 in advance, and beam shape information may be selected from a list of beam shape information stored in the storage unit 25 and input. good.

(Steps 102, 103)
Next, the type of deck plate is selected by the input unit 31 (deck plate type selection means). The storage unit 25 stores the types of deck plates. The type of deck plate may be, for example, a model number, or shape parameters such as length and thickness. The user can select the type from the model number of the deck plate, for example, by using a pull-down menu.

The storage unit 25 stores in advance floor slab information corresponding to the type of deck plate selected. The floor slab information is information such as the rigidity of the floor slab when concrete having a thickness corresponding to the deck plate is cast.

Here, depending on the shape of the beam, the types of suitable and applicable deck plates are limited. For example, a thin deck plate with low rigidity cannot be applied to a beam of large size. Conversely, for smaller sized beams, there is no need to choose an overly thick deck plate. That is, there is a proper deck plate corresponding to each beam.

Appropriate beam type information corresponding to the type of deck plate is stored in advance in the storage unit 25 in association with it. When the beam shape information is input, the control unit 23 compares the beam shape information input by the beam information input means with the appropriate beam type information for each deck plate, and selects decks that match the beam shape information. The plate type is sorted (deck plate type sorting means). The deck plate type selecting means can select a deck plate type from the deck plate types selected by the deck plate type selecting means. In this way, by partially omitting unnecessary deck plate options and reducing the number of deck plate options, deck plate selection is facilitated, and labor at the time of input is reduced.

(Step 104)
Next, the control unit 23 determines whether or not there is a small beam 13 for each area surrounded by the four pillars 9 . When the beam 13 is present, the deck plate direction determination unit of the control unit 23 determines the direction perpendicular to the beam 13 as the longitudinal direction of the deck plate 1 . That is, when the small beams 13 are present, the interval between the small beams 13 is shorter than the distance between the large beams 11 perpendicular thereto.

On the other hand, when there is no small beam 13 , the deck plate direction determination unit of the control unit 23 determines the direction in which the distance between the large beams 11 is narrow as the longitudinal direction of the deck plate 1 . In addition, when the inter-beam distance is the same, the direction of the deck plate in the adjacent other region may be matched. In this way, the control unit 23 determines the direction of the deck plate 1 as the direction in which the distance between the beams is short, based on the shape of the space surrounded by the large beams 11 and the small beams 13 .

Thereafter, the control unit 23 acquires floor slab information corresponding to the selected deck plate 1 type and deck plate 1 direction from the storage unit 25 (floor slab information acquisition means). It should be noted that the floor slab information does not have to be listed in advance in the storage unit 25 for each type of deck plate. Floor slab information may be obtained.

(Step 105)
Next, the control unit 23 calculates stiffness information of a composite beam obtained by synthesizing the beam and the floor slab based on the shape information of the beam and the floor slab information (rigidity information calculation means). The composite beam stiffness information calculation means calculates the stiffness of the composite beam using a known formula based on the shape information of the beam and the floor slab information.

More specifically, the structural calculation of the beams and floor slabs is performed based on at least the strength characteristics of the large beams 11 and the small beams 13 read from the storage unit 25, the strength characteristics of the deck plate 1 in each direction, and the calculation conditions. I do. At this time, the strength characteristics of the deck plate 1 and the concrete placed on the deck plate 1 are also taken into consideration in the strength characteristics of the beam, and the strength of the composite beam on which the deck plate 1 is arranged is calculated. For example, in the conventional structural calculation, the strength of the beam and the strength characteristics of the floor slab 15 are calculated separately. The strength of the beam is calculated as a structure with By doing so, more accurate intensity calculation can be performed.

The composite beam stiffness (composite beam basic stiffness information) corresponding to the shape information of the beam and the floor slab information may be calculated in advance and stored in the storage unit 25 . In this case, the stiffness information calculation means acquires the composite beam basic stiffness information (for example, stiffness per unit length) calculated in advance from the storage unit 25, and adds the length of the beam to the composite beam basic stiffness information. By doing so, the stiffness information of the composite beam may be calculated.

In addition to the stiffness information of the composite beam, the rigidity information calculation means may calculate at least one of the bending strength information of the composite beam, the shear strength information of the composite beam, or the lateral buckling strength information of the composite beam. A known calculation formula is used for these calculations.

(Step 106)
Next, the control unit 23 calculates the shear strength required between the beam and the floor slab from the rigidity information of the composite beam. Further, the strength information of the shear connectors that integrate the beam and the floor slab is obtained from the storage unit 25, and the required number of shear connectors is calculated from the rigidity information of the composite beam and the strength information of the shear connectors. By doing so, it is possible to know the minimum number of shear connectors required, and it is possible to grasp the work time, cost, etc., including the welding work of the shear connectors.

(Steps 107, 108)
Next, the control unit 23 acquires the required stiffness information of the structure necessary for the structure according to the type of the structure or the application from the storage 25, Compare with stiffness information. The control unit 23 also controls the rigidity information of the composite beam, the bending resistance information of the composite beam, the shear strength information of the composite beam, or the lateral buckling resistance information of the composite beam, the number of shear connectors, the rigidity information of the composite beam, and the required rigidity information. Among the comparison results, etc., necessary items are output to the display unit 33 (stiffness information output means).

For example, as a comparison result between the stiffness information of the composite beam and the required stiffness information, a safety factor for the required stiffness can be output. Furthermore, by linking unit price information to each member, it is possible to output the cost of the member to be used. Furthermore, calculations can be performed under multiple conditions, and the results can be displayed simultaneously for comparison. Needless to say, the result of each item can be stored in the storage unit 25 and transmitted to a printer or other terminal.

As described above, according to the present embodiment, when structural calculation is performed, the rigidity of the composite beam is directly calculated by adding the strength characteristics of the deck plate 1 and the concrete placed on the deck plate 1 to the strength characteristics of the beam. Therefore, the strength of each of the large beam 11 and the small beam 13 can be calculated more accurately. In addition, since there is no need to separately calculate the stiffness of the composite beam, it is possible to save time and effort for calculation.

In addition, by selecting the deck plate corresponding to the shape of the beam, the selection of the deck plate becomes easy, and erroneous selection can be suppressed. Furthermore, since the arrangement direction of the deck plate 1 is automatically determined without the user inputting it into the system, the trouble of inputting can be saved. At this time, by making the side with the shorter beam interval the longitudinal direction of the deck plate 1, the direction of the deck plate 1 with high strength can be applied to the direction with weak strength of the structure, and the structure can be efficiently constructed. can improve the strength characteristics of

In addition, since the required structural rigidity and the calculated rigidity are compared according to the type and use of the structure, it is easy to understand whether the selected conditions are applicable and whether the design is excessive. be able to.

In addition, in order to calculate the number of shear connectors so that the floor slab can be fixed to the girders 11 with strength corresponding to the rigidity of the composite girders, the upper flanges of the steel beams must be efficiently integrated with the floor slabs. can be done.

Although the embodiments of the present invention have been described above with reference to the accompanying drawings, the technical scope of the present invention is not influenced by the above-described embodiments. It is obvious that a person skilled in the art can conceive various modifications or modifications within the scope of the technical idea described in the claims, and these are naturally within the technical scope of the present invention. be understood to belong to

1……Deck plate 3……Plate 5……Main reinforcing bar 7……Secondary reinforcing bar 9……Column 11……Big beam 13……Small beam 15……Floor slab

Claims (10)

A program capable of calculating the rigidity of a composite beam that integrates a floor slab and a steel beam by a computer,
the computer,
beam information input means for inputting beam shape information;
deck plate type selection means for selecting the type of deck plate;
floor slab information acquisition means for calculating or acquiring floor slab information corresponding to the selected deck plate type from a storage unit;
stiffness information calculation means for calculating stiffness information of a composite beam obtained by combining the beam and the floor slab based on the shape information of the beam and the floor slab information;
functioning as stiffness information output means for outputting stiffness information of the composite beam ,
The beam information input means inputs the arrangement information of both the large beam and the small beam,
The floor slab information acquisition means determines the direction of the deck plate from the shape of the space surrounded by the large beams and the small beams, and acquires the floor slab information corresponding to the direction;
The deck plate has a strength against bending in the longitudinal direction that is greater than the strength against bending in the lateral direction,
The program , wherein the floor slab information acquisition means determines a direction perpendicular to the small beam as the longitudinal direction of the deck plate for each area surrounded by four pillars . 2. The program according to claim 1, wherein the rigidity information output means outputs the cost of the parts used by linking the unit price information to each part. 3. The program according to claim 2, wherein said stiffness information output means further displays results calculated under a plurality of conditions at the same time. The stiffness information calculation means is
Acquiring from a storage unit basic stiffness information of composite beams calculated in advance corresponding to the shape information of the beams and the information of the floor slab, and calculating the stiffness information of the composite beams based on the basic stiffness information of the composite beams. 4. A program according to any one of claims 1 to 3 . The storage section stores a plurality of types of beam shape information, and the beam information input means can select and input beam shape information stored in the storage section. 5. A program according to any one of claims 1 to 4 . The storage unit stores appropriate beam type information associated with the type of the deck plate,
deck plate type selection means for comparing the beam shape information input by the beam information input means and the appropriate beam type information, and selecting a deck plate type that matches the beam shape information;
6. The deck plate type selection means according to any one of claims 1 to 5 , wherein said deck plate type selection means enables selection of a deck plate type from the deck plate types selected by said deck plate type selection means. program. The rigidity information calculating means is characterized in that, in addition to the rigidity information of the composite beam, at least one of bending strength information of the composite beam, shear strength information of the composite beam, and lateral buckling strength information of the composite beam is calculated. 7. The program according to any one of claims 1 to 6 . Acquisition of required stiffness information of the structure required for the structure according to the type or use of the structure, and the stiffness information output means outputs a comparison result between the calculated stiffness information of the composite beam and the required stiffness information. 8. The program according to any one of claims 1 to 7 , which can be output. Acquiring strength information of a shear connector that integrates the beam and the floor slab,
9. The program according to any one of claims 1 to 8 , wherein the required number of shear connectors can be calculated from the rigidity information of the composite beam and the strength information of the shear connectors. A structural calculation support system that can calculate the rigidity of a composite beam that integrates a floor slab and a steel beam by a computer,
beam information input means for inputting beam shape information;
deck plate type selection means for selecting the type of deck plate;
floor slab information acquisition means for calculating or acquiring floor slab information corresponding to the type of the deck plate from a storage unit;
composite beam stiffness information calculation means for calculating stiffness information of a composite beam obtained by combining the beam and the floor slab based on the shape information of the beam and the floor slab information;
Composite beam stiffness information output means for outputting the composite beam stiffness information;
and
The beam information input means inputs the arrangement information of both the large beam and the small beam,
The floor slab information acquisition means determines the direction of the deck plate from the shape of the space surrounded by the large beams and the small beams, and acquires the floor slab information corresponding to the direction;
The deck plate has a strength against bending in the longitudinal direction that is greater than the strength against bending in the lateral direction,
The structural calculation support system , wherein the floor slab information acquisition means determines a direction perpendicular to the small beam as the longitudinal direction of the deck plate for each area surrounded by four pillars .

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