Structural calculation device, structural calculation method, and structural calculation program for composite slab structure

Abstract

To provide a structural calculation device of a composite slab structure capable of visualizing a relation between a designed composite slab structure and a fireproof range.SOLUTION: A structural calculation device of a composite slab structure comprises: a communication unit 10 for acquiring design data related to at least a structure and fireproof of a designed composite slab structure to be designed which is inputted from a designer side terminal PC; a determination unit 20 for determining an authorized composite slab structure suitable for a designed composite slab structure among multiple authorized composite slab structures by comparing standardized data D_1-D_n including at least the structure and the fireproof of the multiple standardized, authorized composite slab structures; and an output control unit 30 for outputting the graph in which the fireproof range for each authorized composite slab structure based on the authorized data is displayed and the designed data are plotted, to the terminal PC.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a structural calculation device, a structural calculation method, and a structural calculation program for a composite slab structure. [Background technology]

[0002] Conventionally, for example, composite slabs are known that are installed as floor structures in buildings consisting of multiple stories. Composite slabs are supported by a plurality of H-shaped steel beams or the like extending horizontally on each story of the building. The composite slab comprises a deck plate, a metal plate installed below the deck plate, and concrete installed above the deck plate (for example, Patent Document 1).

[0003] On each floor of a building, a composite slab is supported on steel beams formed, for example, of rectangular shape and made of multiple H-shaped steel beams extending horizontally on each floor, forming a composite slab structure.

[0004] The design of a composite slab structure is based on the allowable load and allowable span of the floor structure to which it is applied, and fire resistance performance must also be taken into consideration, such as selecting products certified by the Minister of Land, Infrastructure, Transport and Tourism based on the fire-resistant structure (fire resistance conditions) defined in Article 2, Paragraph 7 of the Building Standards Act. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 2017-61779 Summary of the Invention [Problem to be solved by the invention]

[0006] Structural parts of a building, such as columns, walls, floors, and beams, that meet certain fire resistance requirements are called fire-resistant structures, and the required fire resistance performance may differ depending on the floor of the building, and the structural requirements of the floor structure also differ depending on the purpose of use. Furthermore, for example, even if the structural conditions and required fire resistance requirements differ between the same or different floors of a building, for reasons of workability and construction cost, it may be more efficient to use the same composite slab structure from among multiple certified composite slab structures.

[0007] However, when selecting the same composite slab structure for floor structures with different structural and fire resistance conditions, design calculations must be performed by changing the structural and fire resistance conditions of the composite slab structure to be designed from among composite slab structures with different fire resistance conditions, and there has been a demand for easier and faster structural design.

[0008] Therefore, the present invention has been made in consideration of the above-mentioned problems, and aims to provide a technology that can visualize the relationship between the composite slab structure to be designed and the designable range for each fire resistance certification. [Means for solving the problem]

[0009] In order to solve the above problems, the structural calculation device for composite slab structures of the present invention is characterized by comprising: a communication unit that acquires design data regarding at least the structure and fire resistance of the designed composite slab structure that the designer wants to design, which is input from the designer's terminal; a judgment unit that compares the design data with the standard data regarding at least the structure and fire resistance of a plurality of standardized standard composite slab structures, and determines the standard composite slab structure that is suitable for the designed composite slab from among the plurality of standard composite slabs; and an output control unit that displays the fire resistance range for each standard composite slab structure based on the standard data and outputs a graph on which the design data is plotted to the terminal.

[0010] In addition, in a structural calculation device according to one aspect of the present invention, the output control unit may distinguish between standard composite slab structures that are suitable for the design composite slab structure and standard composite slab structures that are not suitable for the design composite slab structure, and output the graph to the terminal.

[0011] In addition, in a structural calculation device according to one embodiment of the present invention, when a standard composite slab structure that is not suitable for the design composite slab structure is selected on the terminal, the output control unit may be capable of outputting the contents of the design data that are not suitable for the standard composite slab structure to the terminal.

[0012] Furthermore, a structural calculation device according to one aspect of the present invention may include a design calculation sheet creation unit that performs structural calculations based on the design data and creates design calculation sheet data for the designed composite slab structure, and the output control unit may display a design calculation sheet on the terminal based on the design calculation sheet data.

[0013] In addition, a structural calculation device according to one embodiment of the present invention may be provided with a memory unit in which the standard data for each of the plurality of standard composite slab structures is stored and which is capable of additionally storing standard data for new standard composite slab structures.

[0014] In the structural calculation apparatus according to one aspect of the present invention, the storage unit may store the graph and be capable of outputting it as desired.

[0015] Furthermore, in order to solve the above-mentioned problems, the structural calculation method for composite slab structures of the present invention is characterized by including the steps of acquiring design data regarding at least the structure and fire resistance of the designed composite slab structure to be designed, which is input from the designer's terminal; comparing the design data with standard data regarding at least the structure and fire resistance of a plurality of standardized standard composite slab structures, and determining from among the standard composite slab structures, the standard composite slab structure that is suitable for the designed composite slab structure; and outputting to the terminal a graph on which the fire resistance range for each standard composite slab structure based on the standard data is displayed and on which the design data is plotted.

[0016] Furthermore, in order to solve the above-mentioned problems, the structural calculation device for composite slab structures of the present invention is characterized in that it has a computer execute the following steps: acquiring design data regarding at least the structure and fire resistance of the designed composite slab structure that the designer wants to design, which is input from the designer's terminal; comparing the design data with standard data regarding at least the structure and fire resistance of a plurality of standardized standard composite slab structures, and determining from among the standard composite slab structures, the standard composite slab structure that is suitable for the designed composite slab; and outputting to the terminal a graph on which the fire resistance range for each standard composite slab structure based on the standard data is displayed and on which the design data is plotted. [Effects of the Invention]

[0017] According to the present invention, it is possible to visualize the relationship between the composite slab structure to be designed and the range of possible designs for each fire resistance certification. [Brief explanation of the drawings]

[0018] [Figure 1A] FIG. 1 is a perspective view showing a composite slab with the concrete portion partially removed. [Figure 1B] FIG. 1 is a cross-sectional view of a composite slab taken along the width direction. [Figure 2A] FIG. 1 is a cross-sectional view of a simple composite slab structure along its longitudinal direction. [Figure 2B] FIG. 1 is a cross-sectional view of a continuous composite slab structure along its longitudinal direction. [Figure 3] 1 is a diagram showing the overall configuration of a structural calculation system according to an embodiment of the present invention; [Figure 4] 1 is a diagram showing a configuration of a structural calculation apparatus according to an embodiment of the present invention; [Figure 5] 3 is a flowchart showing the operation flow of the structural calculation system according to the present embodiment. [Figure 6A] 10 is a schematic diagram showing a graph indicating the fire resistance certification range and input items displayed on the display unit of the terminal. FIG. [Figure 6B]FIG. 10 is a diagram showing a display unit in which input items that cause non-conformance are displayed on a graph. [Figure 7] FIG. 10 is a diagram showing a graph generated based on new design data. DETAILED DESCRIPTION OF THE INVENTION

[0019] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, components common to each embodiment will be designated by the same reference numerals, and repeated description will be omitted. It should be noted that the drawings are schematic, and the dimensional relationships and ratios of each element may differ from the actual ones. The drawings may also include portions with different dimensional relationships and ratios.

[0020] The structural calculation device 1 according to this embodiment is used when designing composite slab structures 500, 600. The composite slab 100 has a deck plate 200 and a concrete portion 300. The composite slab 100 functions as a formwork when concrete is poured into the deck plate 200, and after the concrete hardens, it becomes one with the concrete portion 300 and is supported on support beams 400 to form the composite slab structure 500, 600 that functions as a floor structure.

[0021] First, we will explain the composite slab 100 and the composite slab structures 500, 600. Fig. 1A is a perspective view showing the composite slab 100 with the concrete portion 300 partially removed. Fig. 1B is a cross-sectional view of the composite slab 100 taken along the width direction Y.

[0022] In the following, the direction in which the composite slab 100 is spanned across the beams 400 is referred to as the longitudinal direction X of the composite slab 100, and the direction in which the composite slab 100 extends, intersecting the longitudinal direction X, is referred to as the width direction Y. The deck plate 200 of the composite slab 100 has a peak portion 210 and a valley bottom portion 220, each extending in the longitudinal direction X, that are connected to each other in the width direction Y via an inclined portion 230, forming a wave-like shape.

[0023] The deck plate 200 is placed between beams 400, for example, made of H-shaped steel, arranged opposite each other in a structure. The deck plate 200 is a corrugated steel plate formed by roll forming a thin steel plate or the like. The deck plate 200 has a peak portion 210, a valley bottom portion 220, and an inclined portion 230. The deck plate 200 may or may not be plated.

[0024] The deck plate 200 is composed of multiple peaks 210, multiple valleys 220, and two pairs of inclined portions 230, and is formed into a wave-shaped cross section along the width direction Y. The deck plate 200 may be end-closed at both ends in the longitudinal direction X.

[0025] The summit portion 210 is a flat portion located above the beam 400 when the composite slab 100 is laid across the beam 400, and is a plate-like portion extending in the longitudinal direction X.

[0026] The valley bottom 220 is parallel or approximately parallel to the peak 210, and is a flat portion that is placed on the beam 400 with respect to the peak 210 when the beam 400 is spanned. The valley bottom 220 is a plate-like portion that extends in the longitudinal direction A. The valley bottom 220 does not overlap with the peak 210 in the width direction W.

[0027] The inclined portions 230 are portions that connect the peak portions 210 and the valley bottom portions 220, and are plate-shaped portions that extend in the longitudinal direction X. The inclined portions 230 extend obliquely from both end sides of the peak portions 210 toward the valley bottom portions 220 in the width direction Y. The inclined portions 230 are inclined so as to form a predetermined angle, for example, an obtuse angle, with respect to the peak portions 210 and the valley bottom portions 220.

[0028] The concrete portion 300 is provided on the deck plate 200. The concrete portion 300 is formed by pouring concrete from the peak portion 210 to a predetermined height (hereinafter also referred to as "peak thickness"). The type of concrete that forms the concrete portion 300 is not particularly limited, and may be any known concrete, such as ordinary concrete, lightweight concrete type 1, lightweight concrete type 2, or the like.

[0029] Deformed reinforcing bars 350 that prevent cracks from expanding are provided inside the concrete section 300. A plurality of deformed reinforcing bars 350 are provided intersecting in the longitudinal direction X and the width direction Y, and are provided between the crest portion 210 of the deck plate 200 and the surface of the concrete section 300. Note that the composite slab 100 may have, instead of the deformed reinforcing bars 350, for example, welded wire mesh or fire-resistant reinforcing bars inside the concrete section 300.

[0030] Composite slab structures 500 and 600 are constructed by supporting composite slabs 100 across beams 400. Figure 2A is a cross-sectional view of the simple composite slab structure 500 along the longitudinal direction X. Figure 2B is a diagram showing a continuous composite slab structure 600.

[0031] When one composite slab 100 is supported in its longitudinal direction X by two beams 400, a simply supported simple composite slab structure 500 is constructed. When one composite slab 100 is supported in its longitudinal direction X by three or more beams 400, a continuously supported continuous composite slab structure 600 is constructed.

[0032] The beams 400 are formed, for example, as H-shaped steel beams, and when the composite slab 100 is supported between the beams 400, the distance between the beam centers of the beams 400 is referred to as the "span L (m)."

[0033] The joining method between the composite slab 100 and the beam 400 is not particularly limited and may be performed by a known method. For example, the composite slab 100 and the beam 400 may be joined to each other with headed studs 410, or alternatively, they may be joined to each other by burnt-out plug welding or driven rivets.

[0034] The composite slab 100 described above is required to have fire resistance in addition to structural conditions such as weight, load capacity, and cross-sectional performance. Fire resistance is defined in Article 2, Paragraph 1, Item 7 of the Building Standards Act as follows: "Fire-resistant structure: A structure of walls, columns, floors, and other parts of a building that is made of reinforced concrete, brick, or other materials that conform to the technical standards set forth by government ordinance regarding fire resistance (the performance required for parts of a building to prevent the collapse and spread of a building due to a normal fire until the fire is extinguished), and that uses a construction method specified by the Minister of Land, Infrastructure, Transport and Tourism or that has been certified by the Minister of Land, Infrastructure, Transport and Tourism."

[0035] When the composite slab structure 500; 600 is used in a place where fire resistance is required in a building, for example, the specified use conditions (fire resistance classification (1-hour floor fire resistance structure or 2-hour floor fire resistance structure), support conditions (simple support or continuous support), allowable span L (m), allowable live load (kN / m 2 ), deck plate thickness (mm), concrete (top thickness (mm), ordinary concrete or lightweight concrete, design standard strength (N / mm 2 It is necessary to obtain certification from the Minister of Land, Infrastructure, Transport and Tourism according to specifications based on design data such as the specifications for the composite slab 100, reinforcement (specifications for welded wire mesh or deformed reinforcing bars, whether fire-resistant reinforcement is required), and the type of connection between the composite slab 100 and the beam 400 (headed studs 410, burnt-out plug welding, driven rivets). Hereinafter, the fire-resistant certified composite slab structure 500; 600 is also referred to as a standardized certified composite slab structure.

[0036] For example, when designing the floors of a building, it is necessary to design different composite slab structures 500, 600 for each story and each use. The structural calculation device 1 according to this embodiment is used to select a certified composite slab structure (standard composite slab structure) that has been fire-resistant certified and that conforms to the designed composite slab structure required by the designer U as a user.

[0037] 3 is a diagram showing the overall configuration of a structural calculation system Sys according to this embodiment. The structural calculation system Sys includes a terminal PC and a structural calculation apparatus 1, which is a server. The terminal PC and the structural calculation apparatus 1 are connected to each other so that they can communicate with each other via a network such as the Internet. The terminal PC is, for example, a computer configured to allow a user, a designer U, to input design data including at least the design structure and fire resistance performance, etc., related to a designed composite slab structure. The terminal PC is capable of communicating with the structural calculation apparatus 1, which will be described later, and is capable of transmitting the design data to the structural calculation apparatus 1.

[0038] The terminal PC in this embodiment is, for example, a personal computer. The terminal PC has an input unit En and a display unit Dis. The input unit En is, for example, a keyboard, which is used by the designer U to input design data and is configured to allow input of specific specifications of the designed composite slab structure.

[0039] The terminal PC is not limited to a personal computer, but may be, for example, a portable tablet terminal, a smartphone, or the like.

[0040] The display unit Dis is configured as a display capable of displaying information transmitted from the structural calculation apparatus 1, which will be described later.

[0041] The structural calculation device 1 according to this embodiment is characterized by comprising: a communication unit 10 that acquires design data relating to at least the structure and fire resistance of the designed composite slab structure input from a terminal PC on the designer U side; a determination unit 20 that compares standard data D_1 to D_n including at least the structure and fire resistance of a plurality of standardized certified composite slab structures to determine a certified composite slab structure suitable for the designed composite slab structure from among the plurality of certified composite slab structures; and an output control unit 30 that outputs to the terminal PC a graph displaying the fire resistance range for each certified composite slab structure based on the standard data and plotting the design data. The structural calculation device 1 will be described in detail below.

[0042] 4 is a diagram showing the configuration of a structural calculation apparatus 1 according to this embodiment. The structural calculation apparatus 1 identifies a certified composite slab structure that is compatible with a designed composite slab structure based on design data input by a designer U. The structural calculation apparatus 1 includes a communication unit 10, a determination unit 20, an output control unit 30, a calculation document creation unit 40, and a storage unit 50.

[0043] The communication unit 10 is a functional unit for communicating with the terminal PC. The communication unit 10 receives design data transmitted from the terminal PC and outputs it to the determination unit 20 and the calculation sheet creation unit 40, and also transmits various output data generated by the output control unit 30 to the display unit Dis of the terminal PC. The communication unit 10 is also a functional unit that comprehensively controls the determination unit 20, the output control unit 30, the calculation sheet creation unit 40, and the storage unit 50 based on commands transmitted from the terminal PC.

[0044] The determination unit 20 is a functional unit that compares the design data with the standard data D_1 to D_n for each certified composite slab structure stored in the memory unit 50, which will be described later. The determination unit 20 is realized by program processing by a program processing device (e.g., a microcontroller) including a processor (e.g., a CPU: Central Processing Unit or an MPU: Micro-Processing Unit) and a memory.

[0045] The determination unit 20 accesses the storage unit 50 and reads the standard data D_1 to D_n for each certified composite slab structure. The determination unit 20 is configured to determine a certified composite slab structure that conforms to the design data based on the read standard data D_1 to D_n.

[0046] The determination unit 20 compares the design data with the specification data D_1 to D_n, and generates determination data indicating which of the multiple certified composite slab structures conforms to the design data, etc. The determination unit 20 transmits the generated determination data to the output control unit 30.

[0047] The output control unit 30 creates a graph based on the judgment data generated by the judgment unit 20. The output control unit 30 is realized by program processing by a program processing device (for example, a microcontroller) including a processor (for example, a CPU: Central Processing Unit or an MPU: Micro-Processing Unit) and a memory.

[0048] The output control unit 30 creates a graph of a two-dimensional coordinate system with the vertical axis representing the allowable live load of the composite slab structure and the horizontal axis representing the span L at which the composite slab structure is supported. Furthermore, the output control unit 30 displays, on the created graph, the design data of the designed composite slab structure, particularly the allowable live load (kN / m 2 ) and span L(m) as a mark S to create output data. Hereinafter, the mark S on the graph will also be referred to simply as the "mark S of the designed composite slab structure."

[0049] The output control unit 30 is also configured to receive calculation data generated by the calculation sheet creation unit 40 (described later) and create calculation sheet data for a structural calculation sheet for the designed composite slab structure in a predetermined format. The output control unit 30 displays the output data and calculation sheet creation data on the display unit Dis of the terminal PC via the communication unit 10.

[0050] The calculation report creation unit 40 is configured to create a design calculation report for a designed composite slab structure. The calculation report creation unit 40 is realized by program processing by a program processing device (e.g., a microcontroller) including a processor (e.g., a CPU: Central Processing Unit or an MPU: Micro-Processing Unit) and a memory.

[0051] The calculation report creation unit 40 accesses the storage unit 50 to read formulas related to structural calculations (hereinafter also referred to as "structural calculation formulas"). The calculation report creation unit 40 performs structural calculations for the designed composite slab structure using the read structural calculation formulas.

[0052] The storage unit 50 is a functional unit for storing various programs and parameters for controlling the operation of the structural calculation device 1, each of the standard data D_1 to D_n relating to each of the multiple certified composite slab structures, structural calculation formulas, etc. In the following description, when there is no need to particularly distinguish between the standard data D_1 to D_n, they will simply be referred to as "standard data D."

[0053] The storage unit 50 may be configured with a non-transitory computer-readable storage medium. Here, the computer-readable storage medium may be a portable medium such as a magneto-optical disk, a ROM, a CD-ROM, or a flash memory, or a storage device such as a hard disk built into a computer system. Furthermore, this storage medium may be one that dynamically stores a program for a short period of time, or one that stores a program for a fixed period of time.

[0054] The standard data D stored in the storage unit 50 includes information related to fire-resistant structure certification and design. The standard data D includes, for example, specifications (size, mass, cross-sectional performance, material, standards, etc.) of the deck plate 200 in the certified composite slab structure, materials for fire-resistant structure certification and design of the certified composite slab structure (fire-resistance certification range, cross-sectional performance and weight of the composite slab 100, etc.), conditions for use of the certified composite slab structure (fire-resistance classification (1-hour floor fire-resistance structure or 2-hour floor fire-resistance structure), support conditions (simple support or continuous support), allowable span L (m), allowable live load (kN / m2 ), Deck plate 200 thickness (mm), Concrete (top thickness (mm), normal concrete or lightweight concrete, Design standard strength (N / mm 2 )), reinforcement (specifications of deformed steel bars or welded wire mesh, whether fire-resistant reinforcement is required), and the connection type between the composite slab 100 and the beam 400 (headed studs 410, burn-through plug welding, driven rivets).

[0055] Here, the "fire resistance certification range" refers to, for example, the allowable live load (kN / m 2 ) and span L (m), fire resistance time, support conditions (simple or continuous), joint conditions with support beams, type of concrete (normal or lightweight), type of deck plate, specifications of crack expansion prevention bars, and whether or not fire-resistant reinforcement bars are required, and this means the designable range for each fire resistance certification of certified composite slab structure certified by the Minister of Land, Infrastructure, Transport and Tourism.

[0056] For example, the fire resistance certification range for each certified composite slab structure is shown by the vertical axis representing the allowable live load (kN / m 2 ) and displayed on a graph with the horizontal axis representing the span L (m). Each certified composite slab structure has its own fire-resistance certification range, but even if different certified composite slab structures have the same fire-resistance certification range (see, for example, symbols "a1," "a2," and "a4" in Figure 6A), their fire-resistance structures, such as fire-resistance specifications, support conditions, concrete type, and whether or not fire-resistance reinforcement is required, may differ.

[0057] <Structural calculation system operation> The operation of the structural calculation system Sys according to this embodiment will be described below with reference to Fig. 5 and Figs. 6A to 6C. Fig. 5 is a flowchart showing the operation flow of the structural calculation system Sys according to this embodiment. Fig. 6A is a schematic diagram of a display unit Dis on which a graph showing the fire resistance certification range and input items are displayed. Fig. 6B is a diagram showing a display unit Dis on which input items that cause non-compliance are displayed on a graph. The input items in the diagram are examples and may differ from the actual input items.

[0058] The fire resistance certification range shown on the graph in the figure is given for each certified composite slab structure, and for ease of explanation, each certified composite slab structure is indicated by the symbols "a1" to "a8" in the graph. Also, "single" or "continuous" displayed next to the symbol means the support condition, "single" means a simply supported composite slab structure, and "continuous" means a continuously supported composite slab structure.

[0059] The structural calculation system Sys starts operation when a designer U who designs a composite slab structure inputs the conditions related to the structure and fire resistance of the composite slab structure he / she wants to design. In step S1, the communication unit 10 of the structural calculation device 1 acquires design data related to the structure and fire resistance of the designed composite slab structure from the terminal PC. The communication unit 10 transmits the acquired design data to the judgment unit 20.

[0060] The design data acquired by the communication unit 10 includes, for example, fire resistance time (one-hour fire-resistant floor structure), thickness and surface treatment of the deck plate 200, deck support (continuous span (two or three consecutive spans, etc.) and span L (m)), concrete (type (normal or lightweight), thickness (mm) and presence or absence of fire-resistant reinforcement), live load (N / m 2 ) etc.

[0061] The design data acquired by the communication unit 10 is not limited to this, and may also acquire information such as the building type and the type of connection with the beam (headed stud, burnt plug welding, hammered rivet), for example.

[0062] In step S2, the judgment unit 20 compares the specification data D_1 to D_n stored in the memory unit 50 with the design data transmitted from the communication unit 10. By comparing the specification data D_1 to D_n with the design data, the judgment unit 20 judges which certified composite slab structure is suitable for the designed composite slab structure. The judgment unit 20 creates judgment data and transmits the judgment data to the output control unit 30.

[0063] In step S3, the output control unit 30 accesses the memory unit 50 to read data related to the fire resistance certification range, and generates output data in which a mark S for the designed composite slab structure is plotted in the fire resistance certification range. The output control unit 30 transmits the output data to the terminal PC via the communication unit 10, and displays a graph based on the output data on the display unit Dis of the terminal PC.

[0064] In the output data generated by the output control unit 30, symbols of certified composite slab structures that comply with the conditions of the designed composite slab structure based on the design data are displayed on a graph in a distinguishable manner from symbols of certified composite slab structures that do not comply. For example, symbols of certified composite structures that comply may be displayed in color (compliant), and symbols of certified composite slab structures that do not comply may be displayed in monochrome (non-compliant). In Figure 7, symbols representing "compliant" are displayed with hatching, and symbols representing "non-compliant" are displayed in white.

[0065] In Figure 6A, the mark S for the designed composite slab structure is located outside all fire resistance certification ranges, so there are no compliant certified composite slab structures, and all certified composite slab structures are non-compliant with the designed composite slab structure.

[0066] The designer U checks the relationship between the fire resistance certification range corresponding to the symbols a1 to a8 of each certified composite slab structure and the symbol S of the designed composite slab structure on the graph displayed on the display unit Dis. Specifically, the designer U checks whether the designed composite slab structure is compatible with the certified composite slab structure he or she wishes to select. On the display unit Dis, the designer U places the cursor, for example, on one of the symbols a1 to a8 indicating the certified composite slab structure he or she wishes to select.

[0067] When the designer U uses the cursor on the display unit Dis to select the symbol of the certified composite slab structure he or she intends to use (e.g., symbol a2) from at least one non-compliant certified composite slab structure (step S3: Non-compliant), information about the selected certified composite slab structure is sent to the communication unit 10.

[0068] In step S4, the determination unit 20 accesses the memory unit 50 and reads the standard data D2 relating to the certified composite slab structure of the selected symbol a2, which is non-compliant as a designed composite slab structure. The determination unit 20 compares the design data with the standard data D2 and transmits cause determination data to the output control unit 30, which determines the input items in the design data that caused the non-compliance.

[0069] In step S4, the output control unit 30 displays the cause determination data on the display unit Dis of the terminal PC via the communication unit 10. Specifically, the output control unit 30 displays the input items that caused the non-conformity for the certified composite slab structure of the selected symbol a2 (see Figure 6B).

[0070] The output control unit 30 displays, beside the symbol "a2", the following design data: "3 continuous" selected as the item for continuous span, "80 (mm)" entered as the item for concrete thickness, "none" selected as the item for fire-resistant reinforcement, "φ6-150×150" selected as the item for crack expansion prevention reinforcement (deformed reinforcing bar), and the load "15000 (N / m2 ) and finishing load "1000 (N / m 2 )" will be displayed on the display section Dis as an NG item that is non-compliant with the certified composite slab structure with the symbol "a2".

[0071] The designer U corrects the items displayed in the NG items as appropriate. Once the NG items are corrected, the corrected design data is transmitted from the terminal PC to the communication unit 10, and steps S1 to S3 are executed. Fig. 7 shows a graph generated based on the new design data.

[0072] As can be seen from a comparison with the graphs shown in Figures 6A and 6B, the position of the mark S for the new designed composite slab structure with revised design data (such as input values) has moved. The mark S is within the fire-resistance certification ranges corresponding to the symbols "a1," "a2," and "a8." This allows the certified composite slab structures with symbols "a1," "a2," and "a8" to be used as the new designed composite slab structure.

[0073] Due to modifications to the design data, the area requiring support has changed, and designer U can easily confirm whether the position of mark S on the designed composite slab structure is within the area requiring support.

[0074] Note that although the mark S for the designed composite slab structure is within the fire resistance certification range for the symbols "a3," "a4," and "a5," the certified composite slab structures for the symbols "a3," "a4," and "a5" have not been determined by the structural calculation device 1 as compliant certified composite slab structures. This is because some of the input data does not conform to the standard data D for the certified composite slab structures corresponding to the symbols "a3," "a4," and "a5." In this case, when the designer U places the cursor on any of the symbols "a3," "a4," and "a5," the NG items that are incompatible with the certified composite slab structure for the selected symbol are displayed on the display unit Dis.

[0075] In addition, in the process of step S4, information about the non-compliant certified composite slab structure may be transmitted from the terminal PC to the output control unit 30, in which case the judgment data received in step S2 is used.

[0076] In step S3, which is performed based on the revised design data, when the designer U uses the cursor on the display unit Dis to select the certified composite slab structure with symbol a2 (step S3: conformity), in step S5, when the designer U selects the "design calculation sheet" button on the display unit Dis (step S4: YES), the communication unit 10 instructs the calculation sheet creation unit 40 to create a design calculation sheet.

[0077] The calculation document creation unit 40 accesses the storage unit 50 and reads the standard data D2 and structural calculation formula of the certified composite slab structure symbol a2. The calculation document creation unit 40 generates design calculation document data related to the design calculation document based on the read standard data D2 and structural calculation formula, and transmits the design calculation document data to the output control unit 30.

[0078] In step S6, the output control unit 30 causes the display unit Dis to display a design calculation sheet based on the design calculation sheet data via the communication unit 10. Note that, at the instruction of the designer U, the design calculation sheet data of the displayed design calculation sheet can be saved in the storage unit 50, and the design calculation sheet can be printed. Through the above steps S1 to S5, the operation of the structural calculation system is completed.

[0079] If there is no instruction to output the design calculation document in step S5 (step S5: NO), the structural calculation system Sys ends its operation.

[0080] The structural calculation system Sys equipped with the structural calculation device 1 according to this embodiment can visualize at a glance the relationship between the designed composite slab structure based on the design data input by the designer U and the designable range for each certified composite slab structure for each fire resistance certification. This makes it possible to easily select a certified composite slab structure suitable for the designed composite slab structure from among multiple certified composite slab structures.

[0081] Furthermore, the display unit Dis of the terminal PC displays symbols of certified composite slab structures that are compatible with the designed composite slab structure and symbols of certified composite slab structures that are not compatible, so that the designer U can easily recognize certified composite slab structures that can be used for the designed composite slab structure.

[0082] Furthermore, if the designer U selects an incompatible certified composite slab structure in the display section Dis, the reason (item) for the incompatibility is displayed in the display section Dis, making it easy for the designer U to correct the design data. This makes it easy to select a unified certified composite slab.

[0083] Furthermore, at the command of designer U, structural calculations for the designed composite slab structure can be carried out and structural calculation reports can be easily created.

[0084] Furthermore, the storage unit 50 can additionally store standard data D relating to newly certified composite slab structures, so that the designer U can always design a composite slab structure based on the latest information (fire-resistance certification, etc.) by using the structural calculation system Sys according to this embodiment. For example, data may be directly transmitted and received between the communication unit 10 and the storage unit 50.

[0085] Furthermore, the memory unit 50 can store graphs based on previously used design data, and past design data can be repeatedly called up, eliminating the need to re-enter design data and reducing the workload.

[0086] <Other> While the preferred embodiments of the present invention have been described above, the present invention is not limited to these embodiments and includes all aspects encompassed by the concept and scope of the claims. Furthermore, various configurations may be selectively combined as appropriate to achieve at least some of the above-described problems and advantages. Furthermore, for example, the shape, material, arrangement, size, etc. of each component in the above-described embodiments may be modified as appropriate depending on the specific application of the present invention. For example, the structural calculation apparatus 1 according to this embodiment is used for a composite slab 100 using a deck plate 200, but this is not limiting. The structural calculation apparatus 1, structural calculation method, and structural calculation system Sys according to this embodiment can also be used for slabs using deck plates with flat top surfaces, or for construction methods using deck plates 200 without pouring concrete. [Explanation of symbols]

[0087] 1...Structural calculation device 10. Communications Department 20... Judgment section 30 Output control section 40. Accounting Department 50...Storage section 500···Simple composite slab structure 600···Continuous composite slab structure

Claims

1. A communication unit that acquires design data relating to at least the structure and fire resistance of the composite slab structure that the designer wishes to design, which is input from a terminal on the designer's side; A determination unit that compares the design data with standard data on at least the structure and fire resistance of a plurality of standardized standard composite slab structures, and determines the standard composite slab structure that is suitable for the designed composite slab structure from among the plurality of standard composite slab structures; an output control unit that displays the fire resistance range for each standard composite slab structure based on the standard data and outputs a graph on which the design data is plotted to the terminal; A structural calculation device for a composite slab structure, comprising:

2. The structural calculation device for a composite slab structure as described in claim 1, characterized in that the output control unit distinguishes between standard composite slab structures that are suitable for the design composite slab structure and standard composite slab structures that are not suitable for the design composite slab structure and outputs the graph to the terminal.

3. A structural calculation device for a composite slab structure as described in claim 1 or 2, characterized in that when a standard composite slab structure that is not suitable for the designed composite slab structure is selected on the terminal, the output control unit is capable of outputting the contents of the design data that are not suitable for the standard composite slab structure to the terminal.

4. a design calculation sheet creation unit that performs structural calculations based on the design data and creates design calculation sheet data for the designed composite slab structure; The output control unit displays a design calculation sheet on the terminal based on the design calculation sheet data.

4. A structural calculation device for a composite slab structure according to claim 1.

5. A structural calculation device for a composite slab structure as described in any one of claims 1 to 4, characterized in that the standard data for each of the multiple standard composite slab structures is stored and a memory unit is provided that can additionally store standard data for new standard composite slab structures.

6. 6. The structural calculation device for a composite slab structure according to claim 5, wherein the storage unit stores the graph and can output it arbitrarily.

7. A step of acquiring design data relating to at least the structure and fire resistance of the composite slab structure to be designed, which is input from a terminal on the designer's side; A step of comparing the design data with standard data on at least the structure and fire resistance of a plurality of standardized standard composite slab structures, and determining the standard composite slab structure that is suitable for the designed composite slab structure from among the standard composite slab structures; a step of outputting to the terminal a graph on which the fire resistance range for each standard composite slab structure based on the standard data is displayed and on which the design data is plotted; A structural calculation method for a composite slab structure, comprising:

8. A step of acquiring design data relating to at least the structure and fire resistance of the composite slab structure to be designed, which is input from a terminal on the designer's side; A step of comparing the design data with standard data on at least the structure and fire resistance of a plurality of standardized standard composite slab structures, and determining the standard composite slab structure that is suitable for the designed composite slab structure from among the standard composite slab structures; a step of outputting to the terminal a graph on which the fire resistance range for each standard composite slab structure based on the standard data is displayed and on which the design data is plotted; A structural calculation program for composite slab structures, characterized by causing a computer to execute the above.

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