Dry roof design system and dry roof design method

Abstract

To provide a dry roof design system and a dry roof design method capable of efficiently designing a dry roof.SOLUTION: In designing a dry roof 100, the specifications to be determined differ depending on whether a design involves a horizontal load being borne by a deck plate 1 or a horizontal load not being borne by the deck plate 1. Therefore, by having a selection unit 64 determines whether or not the deck plate 1 should bear the horizontal load of the dry roof 100, the subsequent design process can be performed smoothly. As a result, the dry roof 100 can be designed efficiently.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a dry roof design system and a dry roof design method. [Background technology]

[0002] A conventional dry roof for a steel frame structure is known from Patent Document 1. This dry roof for a steel frame structure has column members, beam members, and a deck plate. The column members bear vertical loads. The deck plate has resistance not only to vertical loads but also to horizontal loads. [Prior art documents] [Non-patent literature]

[0003] [Non-Patent Document 1] Japanese Patent Application Laid-Open No. 2012-87484 Summary of the Invention [Problem to be solved by the invention]

[0004] By designing the deck plate to bear horizontal loads, it is possible to expect a reduction in brace size and the number of braces required, resulting in greater efficiency in both structural performance and economic efficiency. However, the specifications for deck plates that bear horizontal loads vary widely, including the type, method of joining the deck plate to the beam, integration of deck plates with each other, and use in combination with braces. This can make selecting a deck plate complicated. Furthermore, some specifications cannot be adopted depending on the wishes of the user or operator. As such, there are many specifications that must be considered when designing a dry roof, and an efficient design was required.

[0005] The present invention has been made to solve such problems, and aims to provide a dry roof design system and a dry roof design method that can efficiently design dry roofs. [Means for solving the problem]

[0006] The dry roof design system of the present invention is a dry roof design system for designing a steel-framed dry roof, in which the dry roof has at least column members, beam members, and a deck plate, and is equipped with a selection unit that selects whether or not the deck plate should bear the horizontal load of the dry roof.

[0007] When designing a dry roof, the specifications to be determined differ depending on whether the deck plate is to bear horizontal loads or not. Therefore, by having the selection section determine whether or not the deck plate will bear the horizontal load of the dry roof, subsequent design steps can be carried out smoothly. This allows for efficient dry roof design.

[0008] When the selection unit selects that the deck plate should bear the horizontal load based on the selection result of the user or operator, the selection unit may further select whether or not to use a brace to bear the horizontal load based on the selection result of the user or operator. When the deck plate is to bear the horizontal load, there are two patterns: one in which only the deck plate is provided, and one in which both a brace and the deck plate are used. By having the selection unit make the above selection, it is possible to decide which pattern to use for the design, and the design can be carried out efficiently depending on the pattern to be adopted.

[0009] Even after the selection unit has once selected not to use braces based on the selection result of the user or operator, the selection unit may again select whether to use braces based on the selection result of the user or operator depending on the processing content. In this case, even if it has once been decided not to use braces, if it is preferable to use braces, the specifications can be changed smoothly.

[0010] The selection unit selects a predetermined specification for the deck plate based on the selection result of whether or not the deck plate should bear the horizontal load, and the design system may further include a required performance determination unit that determines whether the specification selected by the selection unit can satisfy the required performance of the dry roof. In this case, the predetermined specification for the deck plate can be adjusted while taking into account whether the required performance is satisfied. For example, by considering the predetermined specifications in order of least construction effort, it is possible to quickly determine a specification that requires little effort and meets the required performance.

[0011] The selection unit may select either the individual specification or the integrated specification based on the selection result of the user or operator as the predetermined specification. The individual specification eliminates the need for the process of joining deck plates together, so construction work is less labor-intensive, but the integrated specification provides greater strength. The selection unit can select the specification taking into account construction work and strength.

[0012] When the selection unit selects the integrated specification as the predetermined specification based on the selection result of the user or operator, the selection unit may further select the partial integrated specification or the full integrated specification based on the selection result of the user or operator. The partial integrated specification requires less construction work because there are fewer points where the deck plates need to be joined, but the full integrated specification provides greater strength. The selection unit can select the specification taking into account the construction work and strength.

[0013] The selection unit may select the number of joints of the deck plate based on the selection result of the user or operator as a predetermined specification. Fewer joints require less construction work, but more joints provide greater strength. The selection unit can select specifications taking into account construction work and strength.

[0014] The dry roof design method of the present invention is a dry roof design method for a steel-framed dry roof, which has at least column members, beam members, and a deck plate, and includes a selection process for selecting whether or not to have the deck plate bear the horizontal load of the dry roof.

[0015] According to the dry roof design method, the same effects and advantages as those of the above-mentioned design system can be obtained. [Effects of the Invention]

[0016] According to the present invention, a dry roof design system and a dry roof design method are provided that can efficiently design dry roofs. [Brief explanation of the drawings]

[0017] [Figure 1] FIG. 1 is a perspective view of a steel-framed dry roof according to an embodiment of the present invention. [Figure 2] FIG. 1 is a perspective view of a steel-framed dry roof with some deck plates omitted. [Figure 3] FIG. 1 is a plan view of one grid. [Figure 4] FIG. 2 is a diagram showing the joining structure of the deck plate. [Figure 5] The design system according to this embodiment will be described. [Figure 6] 10 is a flowchart showing the contents of information processing of the design system. [Figure 7] 10 is a flowchart showing specific processing contents of a deck plate specification selection flow. [Figure 8] 10 is a flowchart showing specific processing contents of a deck plate specification selection flow. [Figure 9] 10 is a flowchart showing specific processing contents of a deck plate specification selection flow. [Figure 10] 10 is a flowchart showing specific processing contents of a deck plate specification selection flow. [Figure 11] 10 is a flowchart showing specific processing contents of a deck plate specification selection flow. [Figure 12] FIG. 2 is a diagram illustrating joints of the deck plate. DETAILED DESCRIPTION OF THE INVENTION

[0018] Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

[0019] FIG. 1 is a perspective view of a steel-framed dry roof 100 designed by a design system 200 according to an embodiment of the present invention. FIG. 2 is a perspective view of the steel-framed dry roof 100, with some deck plates 1 omitted. As shown in FIGS. 1 and 2, the dry roof 100 is a roof constructed using steel frame materials. The dry roof 100 has a plurality of grids GD. One horizontal direction is defined as a first direction D1, and the direction perpendicular to the first direction D1 is defined as a second direction D2. In this embodiment, the dry roof 100 has a total of nine grids GD1 to GD9, three in the first direction D1 and three in the second direction D2. The dry roof 100 has grids GD1, GD2, and GD3 in a first row in the first direction D1, grids GD4, GD5, and GD6 in a second row, and grids GD7, GD8, and GD9 in a third row.

[0020] In the following description, when simply referring to a "grid GD," this refers to the grids GD1 to GD9. Each grid GD is configured as a rectangular area when viewed from above and below. The number and arrangement of the grids GD on the dry roof 100 are not particularly limited. In other words, by arbitrarily setting the number and arrangement of the grids GD, a dry roof 100 of the desired shape and size can be obtained.

[0021] 3 is a plan view of one grid GD. When braces 22 are also used, at least one grid GD among the grids GD1 to GD9 has four column members 20, four beam members 21, a plurality of deck plates 1, and a plurality of braces 22. As will be described later, there are also cases where the braces 22 are not used.

[0022] The grid GD has a pillar member 20 at each of the four corners of its rectangular region. The pillar members 20 are steel pipes extending downward from the grid GD. Adjacent grids GD, GD share a pillar member 20. For example, grid GD1 and grid GD4, which are adjacent in the first direction D1, share a pair of pillar members 20. Grid GD1 and grid GD2, which are adjacent in the second direction D2, share a pair of pillar members 20.

[0023] The grid GD has four beam members 21 arranged between the column members 20. The grid GD has the beam members 21 at positions corresponding to the four sides of a rectangular area. The grid GD has a pair of beam members 21 extending in a first direction D1 and a pair of beam members 21 extending in a second direction D2. The beam members 21 extending in the first direction D1 are suspended between the pair of column members 20 spaced apart from each other in the first direction D1. The beam members 21 extending in the second direction D2 are suspended between the pair of column members 20 spaced apart from each other in the second direction D2. The column members 20 and the beam members 21 are connected via column-beam joints, which are omitted from FIG. 3, FIG. 1 and FIG. 2.

[0024] Multiple deck plates 1 cover the grid GD. The multiple deck plates 1 are arranged to cover a rectangular area surrounded by beam members 21 on all four sides. Each deck plate 1 extends longitudinally in a first direction D1. The multiple deck plates 1 are arranged side by side in a second direction D2. The deck plates 1 are joined to the beam members 21 with joining members 24 such as screws, rivets, burn-out plug welds, fillet welds, bolts, and high-strength bolts. The joints formed by the joining members 24 are provided in the bottom flange 2 of the deck plate 1 (see FIG. 4(a)). There is no limit to the number of joining points on the bottom flange 2. For example, a specification in which a joining member 24 is provided at one location on the lower flange 2 (single-joint specification) may be adopted (see JP1 in Figure 12(a) and Figure 12(b)), or a specification in which a joining member 24 is provided at two locations on the lower flange 2 (two-joint specification) may be adopted (see JP2 in Figure 12(a) and Figure 12(c)).

[0025] All deck plates 1 within the grid GD may be interconnected (integrated specification). Here, either a partial integrated specification or a full integrated specification may be adopted as the integration specification. When a partial integrated specification is adopted, some of the deck plates 1 within the grid GD are interconnected. When a full integrated specification is adopted, all of the deck plates 1 within the grid GD are interconnected. The deck plates 1 within the grid GD may not be connected to each other and may behave individually (individual specification). In the individual specification, the deck plates 1 may be fitted together. The deck plates 1 may be joined together using a screw fastening structure 70 (see FIG. 4(c)) or a welding joint structure 50 (see FIG. 4(b)). Welding may be performed using arc spot welding, fillet welding, or welding with round steel bars. The deck plates 1 may have protruding portions such as ribs or jaws on each side. The fitting portions of the deck plates 1 may be omitted. In this case, a structure in which the deck plate 1 is simply overlapped with another deck plate 1 may be adopted.

[0026] The deck plate 1 will be described in detail with reference to Figure 4(a). The deck plate 1 is formed by continuously bending a strip of steel plate in the width direction, with a horizontal lower flange 2 and a horizontal upper flange 3 bent and connected together by an inclined web 4. The deck plate 1 has arm portions 5 on both sides that are parallel to and on the same plane as the lower flange 2. The deck plate 1 has a joint structure 50 formed by fitting and welding. The joint structure 50 has fitting joints on the side edges of each arm portion 5 as fitting structures 51. One fitting joint is a female fitting joint 6 that opens downward. The other fitting joint is a male fitting joint 7 that protrudes upward, and the overall cross section has a trapezoidal rectangular waveform.

[0027] As shown in Figure 4(b), the female fitting joint 6 comprises an inner surface plate 6a rising from the arm portion 5, an upper surface plate 6b bent and connected integrally with the inner surface plate 6a, the tip of which is separated from the folding plate body and is parallel to the arm portion 5, and an inclined side surface plate 6c bent and connected integrally with the upper surface plate 6b and inclined downward to approach the arm portion 5. The inner surface plate 6a, the upper surface plate 6b, and the inclined side surface plate 6c form a dovetail groove 10 that opens downward. The inner surface plate 6a may also be provided so as to rise at an angle so as to approach the folding plate body side.

[0028] The male fitting joint 7 is equipped with an inclined side plate 7a that rises from the arm portion 5 at an angle so as to approach the folding plate main body, and an upper surface plate 7b that is bent and connected integrally with the side plate 7a, moves away from the folding plate main body, and is parallel to the arm portion 5. The upper end level of the upper surface plate 7b is generally the same as the level of the lower surface of the upper surface plate 6b of the female fitting joint 6, or is at a slightly higher level.

[0029] Deck plates 1 made of folded plates with joints are installed across beam members 21 (see Figure 3), and with one deck plate 1 installed, the dovetail groove 10 of the female mating joint 6 of the other deck plate 1 is positioned so as to cover the male mating joint 7 of one deck plate 1 from above, and the male mating joint 7 of one deck plate 1 and the female mating joint 6 of the other deck plate 1 are engaged so as to fit together, forming a joint mating portion 8.

[0030] Furthermore, joining members 12 are arranged so as to be partially or entirely housed between the inclined side panel 6c of the female fitting joint 6 of one deck plate 1 and the upper surface of the arm portion 5 of the other deck plate 1, and the joining members 12 are fixed to the arm portion 5 or inclined side panel 6c of each deck plate 1 by welding W, thereby integrating adjacent deck plates 1 in the horizontal direction via the joining members 12. Joining structure 50 has joining members 12 fixed by welding W as welded structure 52.

[0031] In the example shown in Figure 4(c), the deck plates 1 are joined together using a screw fastening structure 70. The screw fastening structure 70 is formed by fastening the adjacent deck plates 1 by driving screws 53 into the overlapping area E1 where their widthwise edges overlap. Note that screws may also be used to fasten the deck plates 1 where they overlap using an interlocking structure 51 as shown in Figure 4(b).

[0032] As shown in Figures 1 and 2, the cross-sectional shape of the peaks and valleys of the deck plate 1 extends in a first direction D1. The peaks and valleys of the deck plate 1 are aligned in a second direction D2. In this case, the first direction D1 corresponds to the span direction of the deck plate 1, and the second direction D2 corresponds to the width direction. In the example shown in Figures 1 and 2, the span direction and width direction are the same for the deck plates 1 of all grids GD1 to GD9.

[0033] As shown in FIG. 2, the grid GD has a plurality of braces 22 that are suspended across the surface of the grid GD. In this embodiment, the grid GD has a pair of braces 22. The braces 22 are formed by bending a steel rod or steel plate into an L or C shape. One brace 22 is suspended between a pair of diagonally opposed corners of the rectangular region of the grid GD. The other brace 22 is suspended between another pair of diagonally opposed corners of the rectangular region of the grid GD. Each end of the brace 22 is connected to the beam member 21 via a bracket provided at any position on the beam member 21. The deck plate 1 is provided so as to cover the braces 22 from above.

[0034] In the dry roof 100, whether to use only the deck plate 1 or to use the deck plate 1 and braces 22 together can be determined by design selection. Therefore, all of the grids GD among the plurality of grids GD1 to GD9 may have the deck plate 1 and the braces 22. Alternatively, at least one of the plurality of grids GD1 to GD9 may use the deck plate 1 and the braces 22 together, while the other grids GD do not have the braces 22. Alternatively, all of the plurality of grids GD1 to GD9 may have only the deck plate 1 without the braces 22. Alternatively, at least one of the grids GD1 to GD9 may use the deck plate 1 and the braces 22 together, while the other grids GD do not have the braces 22.

[0035] Next, a design system 200 according to this embodiment will be described with reference to FIG. 5 . The design system 200 is a system for designing a steel-framed dry roof 100. The design system 200 is a system that supports a user or operator who designs the dry roof 100, enabling the user or operator to easily perform the design. An example of the user or operator is a designer. The design system 200 includes a computing device 60, an input unit 61, and an output unit 62. The design system 200 may be configured as a general desktop or notebook personal computer, or as a mobile terminal such as a tablet terminal or a smartphone. The computing device 60 may be a server, and the input unit 61 and output unit 62 may be PCs.

[0036] The input unit 61 is a device that inputs information to the arithmetic device 60 through operation by a user or operator. The input unit 61 is configured by, for example, a keyboard, a mouse, etc. The output unit 62 is a device that outputs information from the arithmetic device 60 to the user or operator. The output unit 62 is configured by, for example, a monitor, a speaker, etc. It is also possible to employ a device in which the input unit 61 and the output unit 62 are integrated, such as a touch panel.

[0037] The arithmetic device 60 may be configured as a computer (also referred to as an on-board automatic control PC) including, for example, a processor, a memory, a storage, and a communication interface. The processor is a computing device such as a CPU (Central Processing Unit). The memory is a storage unit such as a ROM (Read Only Memory) or a RAM (Random Access Memory). The storage is a storage unit (storage medium) such as an HDD (Hard Disk Drive). The communication interface is a communication device that realizes data communication. The processor controls the memory, storage, and communication interface, and realizes the functions of the arithmetic device 60 described below. The arithmetic device 60 realizes various functions by, for example, loading a program stored in the ROM into the RAM and executing the program loaded into the RAM with the CPU. The number of computers constituting the arithmetic device 60 may be one or more.

[0038] The calculation device 60 includes an information acquisition unit 63 , a selection unit 64 , a required performance determination unit 66 , a calculation unit 67 , and a storage unit 68 .

[0039] The information acquisition unit 63 acquires various pieces of information necessary for design in response to the input unit 61 of the user or operator. The information acquisition unit 63 also queries the user or operator by outputting information necessary for design to the output unit 62. The information acquisition unit 63 acquires input information from the user or operator in response to the query. Details of what information the information acquisition unit 63 queries will be described later. The information acquisition unit 63 stores the acquired information in the storage unit 68.

[0040] The memory unit 68 stores various information including information input by the user or operator. The memory unit 68 stores various specifications set by the user or operator. When the selection unit 64, the required performance determination unit 66, and the calculation unit 67 perform various information processing, they read information from the memory unit 68 as needed and perform the information processing. The calculation unit 67 performs various calculations required for the information processing of the design system 200. The calculation unit 67 stores the calculation results in the memory unit 68.

[0041] The selection unit 64 selects whether or not the deck plate 1 will bear the horizontal load of the dry roof 100. Specifically, when designing the grid GD to be designed, the selection unit 64 selects whether to design the deck plate 1 so that it bears the horizontal load, or whether to design the deck plate 1 so that it does not bear the horizontal load. The selection unit 64 selects whether or not to have the deck plate 1 bear the horizontal load based on the selection result of the user or operator. This allows the user or operator to select one of the following designs from Pattern 1 to Pattern 3. In the following description, when it is said that the brace 22 is "used in combination," it means that Pattern 1 is adopted. Pattern 1: Deck plate 1 and brace 22 are installed on grid GD, and the deck plate 1 and brace 22 are used together to support horizontal loads. Pattern 2: Only deck plate 1 is installed on grid GD, and deck plate 1 is designed to bear the horizontal load. Pattern 3: Deck plate 1 and brace 22 are installed on grid GD, and the design is such that only brace 22 bears the horizontal load, and deck plate 1 does not bear the horizontal load.

[0042] When the selection unit 64 selects that the deck plate 1 should bear the horizontal load, it selects whether or not to use the braces 22 that bear the horizontal load. That is, the selection unit 64 selects whether to adopt Pattern 1 or Pattern 2. The selection unit 64 makes this selection based on the selection result of the user or operator. Even after the selection has been made to not use the braces 22, the selection unit 64 again selects whether or not to use the braces 22 in combination depending on the processing content. For example, even if the user or operator has selected not to use the braces 22 in combination, the selection unit 64 again selects whether or not to use the braces 22 in combination if, for example, the performance calculation results in the required performance being insufficient to use the braces 22 in combination.

[0043] The selection unit 64 selects a predetermined specification for the deck plate 1 based on the selection result of whether or not the deck plate 1 should bear a horizontal load. The required performance determination unit 66 determines whether the predetermined specification for the deck plate 1 selected by the selection unit 64 can satisfy the required performance of the dry roof 100. The selection unit 64 selects either the individual specification or the integrated specification as the predetermined specification based on the selection result of the user or operator. Furthermore, if the integration specification is selected as the predetermined specification, the selection unit 64 further selects either the partial integration specification or the full integration specification. The selection unit 64 selects the number of joints in the deck plate 1 as the predetermined specification. In this embodiment, the selection unit 64 selects between a one-joint specification and a two-joint specification.

[0044] Next, with reference to FIGS. 6 to 11, the details of information processing when a user or operator executes a design method for a dry roof 100 using the design system 200 will be described. FIG. 6 is a flowchart showing the details of information processing by the design system 200. As shown in FIG. 6, first, the selection unit 64 of the design system 200 selects whether or not to allow the deck plate 1 to bear a horizontal load (step S10). In step S10, the selection unit 64 queries the user or operator via the output unit 62. When the user or operator inputs a response via the input unit 61, the information acquisition unit 63 acquires the response as selection information and stores it in the memory unit 68. The selection unit 64 makes the selection in step S10 by referring to the selection information stored in the memory unit 68. As such, in the steps marked "Query" in the flowchart, the above-mentioned queries to the user or operator and selections based on the user's or operator's response are made. In the following explanation, a description of such information exchange will be omitted.

[0045] If it is selected that the deck plate 1 should not bear a horizontal load (NO in step S10), the design system 200 finalizes the brace specifications (step S20). This design pattern corresponds to the aforementioned "Pattern 3." The design system 200 finalizes the brace specifications by calculating the specifications of the brace 22 that satisfy the performance requirements requested by the user or operator. When step S20 is completed, the process shown in FIG. 6 ends.

[0046] If it is selected that the deck plate 1 should bear a horizontal load (YES in step S10), the design system 200 executes the deck plate specification selection flow (step S30). This design pattern corresponds to the aforementioned "Pattern 1" or "Pattern 2." The deck plate specification selection flow will be described in detail later. The required performance determination unit 66 determines whether the specifications of the deck plate 1 have been finalized (step S40). In step S40, the selection unit 64 and the required performance determination unit 66 make this determination by referring to the calculation results of whether the specifications have been finalized or deemed inapplicable in the deck plate specification selection flow. Note that in the steps marked "Calculation" in the flowchart, no inquiry is made to the user or operator, and processing is performed solely by calculation within the design system 200. As a result, if it is determined that the specifications cannot be finalized in "Pattern 1" or "Pattern 2" (NO in step S40), step S20 is executed. On the other hand, if it is determined that the specifications have been finalized (YES in step S40), the processing shown in FIG. 6 ends.

[0047] Next, the specific processing content of the deck plate specification selection flow will be described with reference to Figures 7 to 11. Figures 9 to 11 illustrate a flow different from the flow of Figures 7 and 8. When the flow of Figures 7 and 8 is adopted, smooth consideration can be made when it is determined whether or not to use braces. When the flow of Figures 9 to 11 is adopted, comprehensive consideration can be made when it is desired to reduce the construction work of the deck plate. Note that the order of each process in Figures 7 to 11 may be changed or omitted as appropriate. Furthermore, the deck plate specification selection flow is not limited to the content shown in Figures 7 to 11.

[0048] First, an example of a deck plate specification selection flow shown in FIGS. 7 and 8 will be described. As shown in FIG. 7, the calculation unit 67 queries the user or operator to input grid information (step S50). The grid information includes the span length in the deck span direction, the span length in the deck width direction, and the presence or absence of joists. The calculation unit 67 queries the user or operator to select the specifications of the deck plate 1 to be used in the design and to set the required performance of the dry roof 100 (step S100). The output unit 62 may display selectable deck plate 1 specifications so that the user or operator can select a specification. The calculation unit 67 performs each selection and setting based on input from the user or operator via the input unit 61. The specifications of the deck plate 1 may include the type, plate thickness, and joining method of the deck plate 1. Among the specifications of the deck plate 1, specifications other than those listed as the predetermined specifications selected by the required performance determination unit 66 are selected. The required performance of each grid GD against horizontal loads is set as the required performance.

[0049] Next, the selection unit 64 selects whether or not to use the brace 22 in combination with the deck plate 1 (step S110). The selection unit 64 makes this selection based on the selection result in response to an inquiry to the user or operator.

[0050] If it is selected that the brace 22 and the deck plate 1 are to be used together (YES in step S110), the calculation unit 67 selects the specifications of the brace 22 to be used in the design by inquiring of the user or operator (step S120). At this time, the design in pattern 1 is adopted. The output unit 62 may display selectable candidate specifications of the brace 22 so that the user or operator can select a specification. The calculation unit 67 makes the selection based on input by the user or operator via the input unit 61. Here, the specifications of the brace 22 may include the size, material strength, material, shape, etc. of the brace 22.

[0051] Next, the required performance determination unit 66 determines whether the required performance of the dry roof 100 is met by selecting a specified specification for the deck plate 1 based on the selection results by the selection unit 64 in steps S100 and 110 and the selection results in step S120 (step S130).

[0052] Here, with reference to FIG. 8(a), the details of the brace combined use required performance determination flow of step S130 will be described. First, the required performance determination unit 66 determines whether the required performance is met by combining the brace 22 with the deck plate 1 with a single joint specification (step S300). Here, the deck plate 1 is selected to be an individual specification. If it is determined that the required performance is met (NO in step S300), the required performance determination unit 66 confirms the determination result that pattern 1 can be designed by combining the brace 22 and the deck plate 1 (step S360). Once step S360 is completed, the process shown in FIG. 8(a) ends. Note that if it is determined that the required performance is met (NO) in the subsequent determinations of steps S310 to S350, step S360 is executed, and therefore its description will be omitted.

[0053] On the other hand, if it is determined that the required performance is not met (YES in step S300), the required performance determination unit 66 determines whether the required performance is met by using the brace 22 in combination with the deck plate 1 with two-point joint specifications (step S310).

[0054] If it is determined that the individual specifications do not satisfy the required performance (YES in step S310), the required performance determination unit 66 determines whether the required performance is satisfied by using the brace 22 in combination with the deck plate 1 that is partially integrated and has a single joint (step S320).If it is determined that the required performance is not satisfied (YES in step S320), the required performance determination unit 66 determines whether the required performance is satisfied by using the brace 22 in combination with the deck plate 1 that is fully integrated and has a single joint (step S330).

[0055] If it is determined that the required performance is not satisfied with the integrated specification and one joint (YES in step S330), the required performance determination unit 66 determines whether the required performance is satisfied by using the brace 22 in combination with the deck plate 1 with the partial integrated specification and two joints (step S340).If it is determined that the required performance is not satisfied (YES in step S340), the required performance determination unit 66 determines whether the required performance is satisfied by using the brace 22 in combination with the deck plate 1 with the fully integrated specification and two joints (step S350).

[0056] If it is determined that the required performance is not satisfied no matter how the predetermined specifications are set (YES in step S350), the required performance determination unit 66 confirms the determination result that designing pattern 1 using the brace 22 and deck plate 1 in combination is not possible (step S370). When step S370 is completed, the process shown in FIG. 8(a) ends.

[0057] Returning to Figure 7, in step S130, if it is determined in the processing of Figure 8(a) that design for pattern 1 is possible (step S360), it is determined that the required performance is met (NO). At this time, the calculation unit 67 finalizes the specifications of the deck plate 1 and braces 22 for pattern 1 (step S150). When step S150 is completed, the processing shown in Figure 7 ends.

[0058] In step S130, if it is determined in the process of FIG. 8(a) that the design of pattern 1 is not possible (step S370), it is determined that the required performance is not met (YES). At this time, the selection unit 64 selects whether or not to review the specifications of the brace 22 (step S140). The selection unit 64 makes this selection based on the selection result in response to an inquiry to the user or operator. If it is selected that a review should be performed (NO in step S140), the process is repeated again from step S120.

[0059] If it is selected that no review will be performed (YES in step S140), the selection unit 64 selects whether or not to review the specifications and required performance of the deck plate 1 (step S160). The selection unit 64 makes this selection based on the selection result in response to the inquiry made to the user or operator. If it is selected that a review will be performed (NO in step S160), the processing is repeated again from step S100. If it is selected that no review will be performed (YES in step S160), the calculation unit 67 confirms the determination result that it is not possible to apply a design that causes the deck plate 1 to bear a horizontal load (step S170). Once step S170 is completed, the processing shown in FIG. 7 ends.

[0060] If it is selected that the brace 22 and deck plate 1 are not to be used together (NO in step S110), the required performance determination unit 66 determines whether the required performance of the dry roof 100 is met by selecting a specified specification of the deck plate 1 based on the determination result by the selection unit 64 in steps S100 and S110 (step S180).

[0061] Here, with reference to FIG. 8(b), the non-brace required performance determination flow of step S180 will be described in detail. First, the required performance determination unit 66 determines whether the required performance is satisfied by the deck plate 1 with a single joint specification (step S400). Here, an individual specification deck plate 1 is selected. If it is determined that the required performance is satisfied (NO in step S400), the required performance determination unit 66 confirms the determination result that pattern 1 can be designed using both braces 22 and deck plate 1 (step S460). Once step S460 is completed, the process shown in FIG. 8(b) ends. Note that if it is determined that the required performance is satisfied (NO) in the subsequent determinations of steps S410 to S450, step S460 is executed, and therefore its description will be omitted.

[0062] On the other hand, if it is determined that the required performance is not satisfied (YES in step S400), the required performance determination unit 66 determines whether the deck plate 1 with two-joint specifications satisfies the required performance (step S410).

[0063] If it is determined that the required performance is not satisfied with the individual specifications (YES in step S410), the required performance determination unit 66 determines whether the required performance is satisfied by a deck plate 1 with partial integration specifications and a single joint specification (step S420).If it is determined that the required performance is not satisfied (YES in step S420), the required performance determination unit 66 determines whether the required performance is satisfied by a deck plate 1 with full integration specifications and a single joint specification (step S430).

[0064] If it is determined that the required performance is not satisfied with the integrated specification and one joint (YES in step S430), the required performance determination unit 66 determines whether the required performance is satisfied by the deck plate 1 with the partial integrated specification and two joints (step S440).If it is determined that the required performance is not satisfied (YES in step S440), the required performance determination unit 66 determines whether the required performance is satisfied by the deck plate 1 with the fully integrated specification and two joints (step S450).

[0065] If it is determined that the required performance is not satisfied no matter how the predetermined specifications are set (YES in step S450), the required performance determination unit 66 confirms the determination result that designing pattern 2 using only deck plate 1 is not possible (step S470). When step S470 is completed, the process shown in FIG. 8(b) ends.

[0066] Returning to Figure 7, in step S180, if it is determined in the processing of Figure 8(b) that design of pattern 2 is possible (step S460), it is determined that the required performance is met (NO). At this time, the calculation unit 67 finalizes the specifications of the deck plate 1 for pattern 2 (step S210). When step S210 is completed, the processing shown in Figure 7 ends.

[0067] In step S180, if it is determined in the processing of FIG. 8(b) that the design of pattern 2 is not possible (step S470), it is determined that the required performance is not met (YES). At this time, the selection unit 64 selects whether or not to consider specifications for the combined use of the brace 22 and deck plate 1 (step S190). The selection unit 64 makes this selection based on the selection result in response to an inquiry to the user or operator. If it is selected that the combined use should be considered (NO in step S190), the processing is repeated again from step S120.

[0068] If it is selected that the combined use will not be considered (YES in step S190), the selection unit 64 selects whether or not to review the specifications and required performance of the deck plate 1 (step S200). The selection unit 64 makes this determination based on the selection result in response to the inquiry made to the user or operator. If it is selected that a review will be performed (NO in step S200), the processing is repeated again from step S100. If it is selected that a review will not be performed (YES in step S200), the calculation unit 67 confirms the determination result that it is not possible to apply a design that allows the deck plate 1 to bear a horizontal load (step S170). Once step S170 is completed, the processing shown in FIG. 7 ends.

[0069] Next, an example of a deck plate specification selection flow shown in Figures 9 to 11 will be described. As shown in Figure 9, the calculation unit 67 queries the user or operator to input grid information (step S490). The calculation unit 67 queries the user or operator to select the specifications of the deck plate 1 to be used in the design and sets the required performance of the dry roof 100 (step S500). Here, the same processing as step S100 in Figure 7 is performed.

[0070] The required performance determination unit 66 determines whether the required performance is satisfied by the deck plate 1 with a single joint specification (step S510). Here, an individual specification is selected for the deck plate 1. If it is determined that the required performance is satisfied (NO in step S510), the required performance determination unit 66 confirms the determination result that pattern 2 can be designed using only the deck plate 1 (step S520 in Figure 11). Once step S520 is completed, the processing shown in Figures 9 to 11 ends.

[0071] If it is determined that the required performance is not met (YES in step S510), the selection unit 64 selects whether or not to use the brace 22 and the deck plate 1 together (step S530). The selection unit 64 makes this selection based on the selection result in response to an inquiry to the user or operator.

[0072] If it is selected that the brace 22 and deck plate 1 are to be used together (NO in step S530), the required performance determination unit 66 determines whether the required performance is met by using the brace 22 in combination with the deck plate 1 with a single joint specification (step S540). In this case, the deck plate 1 is selected to be of an individual specification. If it is determined that the required performance is met (NO in step S540), the required performance determination unit 66 confirms the determination result that it is possible to design pattern 1 using the brace 22 and deck plate 1 in combination (step S560). Once step S560 is completed, the processing shown in Figures 9 to 11 ends.

[0073] If the determination in the subsequent steps S570, S600, S630, S670, and S700 determines that the required performance is met (NO), step S520 is executed, and therefore the description thereof will be omitted.If the determination in the subsequent steps S590, S620, S660, S690, and S720 determines that the required performance is met (NO), step S560 is executed, and therefore the description thereof will be omitted.

[0074] If it is selected that the brace 22 and the deck plate 1 are not to be used together (YES in step S530), or if it is determined that the required performance is not satisfied (YES in step S540), the required performance determination unit 66 determines whether the required performance is satisfied by the deck plate 1 with two joints (step S570). In this case, the individual specification is selected for the deck plate 1. If it is determined that the required performance is not satisfied (YES in step S570), the selection unit 64 selects whether the brace 22 and the deck plate 1 are to be used together (step S580). The selection unit 64 makes this selection based on the selection result in response to an inquiry to the user or operator. If it is selected that the brace 22 and the deck plate 1 are to be used together (NO in step S580), the required performance determination unit 66 determines whether the required performance is satisfied by the combined use of the brace 22 and the deck plate 1 with two joints (step S590). In this case, the individual specification is selected for the deck plate 1.

[0075] If it is selected that the brace 22 and deck plate 1 are not to be used together (YES in step S580) or if it is determined that the required performance is not satisfied (YES in step S590), the required performance determination unit 66 determines whether the required performance is satisfied by the deck plate 1 with the partially integrated specification and single joint specification (step S600), as shown in FIG. 10 . If it is determined that the required performance is not satisfied (YES in step S600), the selection unit 64 selects whether the brace 22 and deck plate 1 are to be used together (step S610). The selection unit 64 makes this selection based on the selection result in response to an inquiry made to the user or operator. If it is selected that the brace 22 and deck plate 1 are to be used together (NO in step S610), the required performance determination unit 66 determines whether the required performance is satisfied by the combined use of the brace 22 and deck plate 1 with the partially integrated specification and single joint specification (step S620).

[0076] If it is selected that the brace 22 and the deck plate 1 are not to be used together (YES in step S610), or if it is determined that the required performance is not satisfied (YES in step S620), the required performance determination unit 66 determines whether the required performance is satisfied by the fully integrated deck plate 1 with a single joint (step S630). If it is determined that the required performance is not satisfied (YES in step S630), the selection unit 64 selects whether the brace 22 and the deck plate 1 are to be used together (step S640). The selection unit 64 makes this selection based on the selection result in response to an inquiry to the user or operator. If it is selected that the brace 22 and the deck plate 1 are to be used together (NO in step S640), the required performance determination unit 66 determines whether the required performance is satisfied by the combined use of the brace 22 and the fully integrated deck plate 1 with a single joint (step S660).

[0077] If it is selected that the brace 22 and the deck plate 1 are not to be used together (YES in step S640) or if it is determined that the required performance is not satisfied (YES in step S660), the required performance determination unit 66 determines whether the required performance is satisfied by the deck plate 1 with the partially integrated specification and two joints (step S670), as shown in FIG. 11 . If it is determined that the required performance is not satisfied (YES in step S670), the selection unit 64 selects whether the brace 22 and the deck plate 1 are to be used together (step S680). The selection unit 64 makes this selection based on the selection result in response to an inquiry to the user or operator. If it is selected that the brace 22 and the deck plate 1 are to be used together (NO in step S680), the required performance determination unit 66 determines whether the required performance is satisfied by the combined use of the brace 22 and the deck plate 1 with the partially integrated specification and two joints (step S690).

[0078] If it is selected that the braces 22 and the deck plate 1 are not to be used together (YES in step S6800), or if it is determined that the required performance is not satisfied (YES in step S690), the required performance determination unit 66 determines whether the required performance is satisfied by the fully integrated deck plate 1 with two joints (step S700). If it is determined that the required performance is not satisfied (YES in step S700), the selection unit 64 selects whether the braces 22 and the deck plate 1 are to be used together (step S710). The selection unit 64 makes this selection based on the selection result in response to an inquiry made to the user or operator. If it is selected that the braces 22 and the deck plate 1 are to be used together (NO in step S710), the required performance determination unit 66 determines whether the required performance is satisfied by the combined use of the braces 22 and the fully integrated deck plate 1 with two joints (step S720).

[0079] If it is selected that the braces 22 and the deck plate 1 are not to be used together (YES in step S7100), or if it is determined that the required performance is not met (YES in step S720), the selection unit 64 selects whether or not to review the specifications and required performance of the deck plate 1 (step S730). The selection unit 64 makes this selection based on the selection result in response to the inquiry made to the user or operator. If it is selected that a review is to be performed (NO in step S730), the processing is repeated again from step S500. If it is selected that a review is not to be performed (YES in step S730), the calculation unit 67 confirms the determination result that it is not possible to apply a design that allows the deck plate 1 to bear a horizontal load (step S740). Once step S740 is completed, the processing shown in Figures 9 to 11 ends.

[0080] Next, the operation and effect of the design system 200 and design method for a dry roof of a steel frame construction according to the embodiment of the present invention will be described.

[0081] When designing a dry roof 100, the specifications to be determined differ depending on whether the design involves the deck plate 1 bearing horizontal loads or not. Therefore, by having the selection unit 64 determine whether or not the deck plate 1 will bear the horizontal load of the dry roof 100, the subsequent design steps can be carried out smoothly. As described above, the design of the dry roof 100 can be carried out efficiently.

[0082] When the selection unit 64 selects that the deck plate 1 is to bear the horizontal load based on the selection result of the user or operator, it may select whether or not to also use braces 22 that bear the horizontal load. When the deck plate 1 is to bear the horizontal load, there are pattern 2 in which only the deck plate 1 is provided, and pattern 1 in which both braces and the deck plate 1 are used. By having the selection unit 64 make the above selection, it is possible to decide which pattern to use for the design, and to efficiently carry out the design depending on the pattern to be adopted.

[0083] Even after once selecting not to use the brace 22, the selection unit 64 may again select whether or not to use the brace 22 in combination depending on the processing content. In this case, even if it has been decided not to use the brace 22 in combination, if it is found that using the brace 22 in combination is preferable, the specifications can be smoothly changed.

[0084] The selection unit 64 selects predetermined specifications for the deck plate 1 based on the selection result of whether or not the deck plate should bear a horizontal load. The design system 200 may further include a required performance determination unit 66 that determines whether the specifications selected by the selection unit 64 can satisfy the required performance of the dry roof 100. In this case, the predetermined specifications for the deck plate 1 can be adjusted while taking into consideration whether the required performance is satisfied. For example, by considering the predetermined specifications in order of least construction effort, it is possible to quickly determine specifications that require little effort and satisfy the required performance.

[0085] The selection unit 64 may select either the individual specification or the integrated specification as the predetermined specification based on the selection result of the user or operator. The individual specification eliminates the need for the process of joining the deck plates 1, so construction work is less labor-intensive, but the integrated specification provides greater strength. The selection unit 64 can select the specification taking into account construction work and strength.

[0086] When the selection unit 64 selects the integrated specification as the predetermined specification based on the selection result of the user or operator, it may further select the partial integrated specification or the full integrated specification based on the selection result of the user or operator. The partial integrated specification requires less construction work because there are fewer points where the deck plates need to be joined, but the full integrated specification provides greater strength. The selection unit 64 can select the specification taking into account the construction work and strength.

[0087] The selection unit 64 may select the number of joints on the deck plate 1 based on the selection result of the user or operator as a predetermined specification. Fewer joints require less construction work, but more joints provide greater strength. The selection unit 64 can select specifications taking into account construction work and strength.

[0088] The design method for a dry roof 100 in this embodiment is a design method for a dry roof 100 for designing a steel-framed dry roof 100, which has at least a column member 20, a beam member 21, and a deck plate 1, and includes a selection process for selecting whether or not to have the deck plate 1 bear the horizontal load of the dry roof 100.

[0089] According to the design method for the dry roof 100, the same actions and effects as those of the design system 200 described above can be obtained.

[0090] Using the design system 200 offers the following advantages. For example, it may be necessary to consider the horizontal load borne by the deck plate 1 alone. In such cases, it is possible to consider combined specifications from the beginning. If the required performance is so high that it is clear that individual specifications are not possible, it is possible to consider integrated specifications from the beginning. A design using the brace 22 and deck plate 1 in combination may be unacceptable depending on the user or operator, and the design system 200 can accommodate such user or operator requests. For example, when designing a deck plate 1 with little track record as a combined type, the design system 200 can support a design that meets the user's or operator's intentions. Conversely, it is also possible for a user or operator to primarily prefer the combined use of the brace 22 and deck plate 1. For example, it is possible to accommodate a design that focuses on the well-proven brace 22 and uses the deck plate as a supplementary component. An integrated specification may be unacceptable depending on the user or operator due to the increased number of construction projects. By using the design system 200, the specifications of the deck plate 1 that bears horizontal loads can be efficiently considered in order of economy, thereby contributing to maximum cost reduction of the roof surface.

[0091] The present invention is not limited to the above-described embodiments.

[0092] [Form 1] A dry roof design system for designing a dry roof for a steel frame structure, The dry roof includes at least a column member, a beam member, and a deck plate, A dry roof design system comprising a selection unit for selecting whether or not the deck plate is to bear the horizontal load of the dry roof. [Form 2] The dry roof design system described in form 1, wherein the selection unit, when selecting to have the deck plate bear the horizontal load based on the selection result of the user or operator, further selects whether or not to use braces to bear the horizontal load based on the selection result of the user or operator. [Form 3] The dry roof design system of embodiment 2, wherein the selection unit, even after initially selecting not to use the braces based on the selection result of the user or operator, selects again whether to use the braces based on the selection result of the user or operator depending on the processing content. [Form 4] the selection unit selects a predetermined specification of the deck plate in response to a selection result of whether or not the deck plate should bear the horizontal load; A dry roof design system according to any one of aspects 1 to 3, further comprising a required performance determination unit that determines whether the specifications selected by the selection unit can satisfy the required performance of the dry roof. [Form 5] A dry roof design system as described in form 4, wherein the selection unit selects an individual specification or an integrated specification as the specified specification based on the selection result of a user or operator. [Form 6] A dry roof design system as described in form 5, wherein the selection unit, when selecting the integrated specification as the specified specification based on the selection result of the user or operator, further selects a partial integrated specification or a full integrated specification based on the selection result of the user or operator. [Form 7] A dry roof design system as described in form 4, wherein the selection unit selects the number of joints of the deck plate based on the selection result of the user or operator as the specified specification. [Form 8] A dry roof design system as described in form 6, wherein the selection unit selects the number of joints of the deck plate based on the selection result of the user or operator as the specified specification. [Form 9] A dry roof design method for designing a dry roof for a steel frame structure, comprising: The dry roof includes at least a column member, a beam member, and a deck plate, A method for designing a dry roof, comprising a selection step of selecting whether or not to allow the deck plate to bear the horizontal load of the dry roof. [Explanation of symbols]

[0093] 1...deck plate, 20...column member, 21...beam member, 22...brace, 64...selection section, 66...required performance determination section, 100...dry roof, 200...design system

Claims

1. A dry roof design system for designing a dry roof for a steel frame structure, The dry roof includes at least a column member, a beam member, and a deck plate, A dry roof design system comprising a selection unit for selecting whether or not the deck plate is to bear the horizontal load of the dry roof.

2. The dry roof design system of claim 1, wherein the selection unit, when selecting to have the deck plate bear the horizontal load based on the selection result of the user or operator, further selects whether or not to use braces to bear the horizontal load based on the selection result of the user or operator.

3. The dry roof design system of claim 2, wherein the selection unit selects whether or not to use the brace again based on the selection result of the user or operator depending on the processing content, even after once selecting not to use the brace based on the selection result of the user or operator.

4. the selection unit selects a predetermined specification of the deck plate in response to a selection result of whether or not the deck plate should bear the horizontal load; The dry roof design system according to claim 1 , further comprising a required performance determination unit that determines whether the specifications selected by the selection unit can satisfy the required performance of the dry roof.

5. The dry roof design system according to claim 4 , wherein the selection unit selects an individual specification or an integrated specification as the predetermined specification based on a selection result by a user or an operator.

6. The dry roof design system of claim 5, wherein the selection unit, when selecting the integrated specification based on the selection result of the user or operator as the specified specification, further selects a partial integrated specification or a full integrated specification based on the selection result of the user or operator.

7. The dry roof design system according to claim 4 , wherein the selection unit selects the number of joints of the deck plate based on a selection result of a user or operator as the predetermined specification.

8. The dry roof design system according to claim 6 , wherein the selection unit selects the number of joints of the deck plate based on a selection result of a user or operator as the predetermined specification.

9. A dry roof design method for designing a dry roof for a steel frame structure, comprising: The dry roof includes at least a column member, a beam member, and a deck plate, A method for designing a dry roof, comprising a selection step of selecting whether or not to allow the deck plate to bear the horizontal load of the dry roof.

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