Evacuation safety performance evaluation method, evacuation safety performance evaluation system, program, and building

Abstract

In buildings with large habitable rooms, the evacuation safety performance should be appropriately evaluated. [Solution] A method for evaluating the evacuation safety performance of a building having a living room that is divided into multiple partitioned spaces by beams in a planar manner, comprising: a partitioned space setting step of setting the partitioned spaces; a fire source location setting step of setting the fire source location in the partitioned space; an effective exit setting step of setting an effective exit that is effective for evacuation from the living room; and the time t of completion of evacuation from the living room. escape A step for calculating the evacuation completion time, and the time t for the smoke layer temperature in the divided space (Xi, Yj) where the effective exit is located to reach a predetermined temperature. smoke This is an evacuation safety performance evaluation method comprising a step of calculating the smoke layer rise temperature and the time to reach a predetermined temperature for calculating (Xi, Yj).

Description

[Technical Field]

[0001] This invention relates to a method for evaluating evacuation safety performance, an evacuation safety performance evaluation system, a program, and a building. [Background technology]

[0002] In recent years, with increasing attention on decarbonization in buildings, there has been a growing demand for wooden construction. When a building is constructed of wood, the main structural elements such as columns and beams are sometimes left exposed. Exposed wood means finishing the surface of the main structural elements in the interior of a building in a way that reveals the material, thereby allowing the natural texture of wood to be incorporated into the building's interior. [Prior art documents] [Patent Documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2014-229052 [Overview of the project] [Problems that the invention aims to solve]

[0004] Incidentally, in the method for evaluating the evacuation safety performance of buildings where the main structural components are exposed wood, it is estimated that a flashover occurs when a portion of the building's living spaces, specifically the wood near the ceiling close to the fire source (for example, beams), ignites, rendering all exits in the living spaces unusable for evacuation. Therefore, it has been difficult to plan buildings where evacuation takes time, such as those with large living spaces. This problem also existed in buildings with large living spaces, even those that do not have exposed wood in their main structural components.

[0005] One example of the object of the present invention is to appropriately evaluate the evacuation safety performance in buildings having large living spaces. Other objects of the present invention will become apparent from the description herein. [Means for solving the problem]

[0006] One aspect of the present invention is a method for evaluating the evacuation safety performance of a building having a living room that is divided into a plurality of divided spaces by beams in a planar manner, the method including: a divided space setting step of setting the divided spaces; a fire source position setting step of setting a fire source position in the divided spaces; an effective exit setting step of setting an effective exit that is effective for evacuation from the living room; and a evacuation completion time calculation step of calculating the time t escape for the evacuation from the living room to be completed; and a smoke layer rising temperature predetermined temperature arrival time calculation step of calculating the time t smoke (Xi,Yj) for the rising temperature of the smoke layer in the divided space (Xi,Yj) having the effective exit to reach a predetermined temperature. The method for evaluating evacuation safety performance includes these steps.

[0007] Other features of the present invention will be clarified by the descriptions in the following specification and drawings.

Advantages of the Invention

[0008] According to the above aspect of the present invention, in a building having a living room with a large floor area, the evacuation safety performance can be appropriately evaluated.

Brief Description of the Drawings

[0009] [Figure 1] FIG. 1 is an explanatory diagram of a building 10. [Figure 2] FIG. 2 is a flowchart of the evacuation safety performance evaluation method according to the first embodiment. [Figure 3] [[ID=�2]]FIG. 3A is a plan view of a building 10 to which the evacuation safety performance evaluation method according to the first embodiment is applied. FIG. 3B is a cross-sectional view of the building 10 to which the evacuation safety performance evaluation method according to the first embodiment is applied. [Figure 4] FIG. 4 is an explanatory diagram of a two-layer zone model. [Figure 5] FIG. 5 is a flowchart of the evacuation safety performance evaluation method according to the second embodiment. [Figure 6]FIG. 6A is a plan view of a building 10 to which the evacuation safety performance evaluation method of the second embodiment is applied. FIG. 6B is a cross-sectional view of the building 10 to which the evacuation safety performance evaluation method of the second embodiment is applied.

Embodiments for Carrying Out the Invention

[0010] At least the following matters will become clear from the description in this specification and the attached drawings.

[0011] Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. The same or equivalent components, members, etc. shown in each drawing are denoted by the same reference numerals, and repeated explanations will be omitted as appropriate.

[0012] ===First Embodiment=== FIG. 1 is an explanatory view of a building 10.

[0013] <<Definition of Directions, etc.>> First, while referring to FIG. 1, directions, etc. in the building 10 that is the object of the evacuation safety performance evaluation method of the first embodiment will be defined.

[0014] As shown in FIG. 1, the vertical direction is the "up and down direction", the vertically upward direction is simply the "up direction", and the vertically downward direction is simply the "down direction". Also, among the horizontal directions, the mutually perpendicular directions are the "X direction" and the "Y direction". In this embodiment, the "X direction" and the "Y direction" are directions parallel to the direction in which the beam 13 (described later) of the building 10 extends. In FIG. 1, for the sake of easy understanding of the directions, etc. in the building 10, each of the up and down direction, X direction, and Y direction is represented by a line segment with double arrows.

[0015] The above definition of directions, etc. is common to other embodiments of this specification unless otherwise specified.

[0016] <<Overview>> Next, while referring to FIG. 1 again, an overview of the building 10 in this embodiment will be described.

[0017] The building 10 is made of wood, and in particular, its main structural components are exposed wood. In the building 10 of this embodiment, the main structural components are, for example, the columns 12 and beams 13, which will be described later. In other words, in the building 10 of this embodiment, the columns 12 and beams 13 are formed as exposed wood. However, only the surfaces of the columns 12 and beams 13 may be made of wood. In other words, only the surface material of the columns 12 and beams 13 may be wood, and the material other than the surface material of the columns 12 and beams 13 may be other than wood.

[0018] The building 10 has the aforementioned main structural components: columns 12 and beams 13, walls 14, ceiling 15, and floor 16. The space enclosed by the walls 14, ceiling 15, and floor 16 is called a "room," and a living room 11 is a room that is continuously used for purposes such as human habitation, work, assembly, and recreation. In this embodiment of the building 10, the columns 12 and beams 13 are formed as exposed wood, and the walls 14 and ceiling 15 are formed of semi-noncombustible material. Furthermore, there is no particular specification for the material of the floor 16, and any material can be used.

[0019] In the following, we will consider the case where, in the aforementioned building 10, a fire breaks out in a room 11 due to a fire source 18, as shown in Figure 1, and the occupant P evacuates from the room 11 towards the exit. In Figure 1, of the multiple columns 12 and beams 13, the columns 12 and beams 13 closer to the fire source 18 are designated as columns 12A and beams 13A, and the columns 12 and beams 13 further away from the fire source 18 are designated as columns 12B and beams 13B.

[0020] Incidentally, in typical wooden-finished rooms (for example, rooms where the walls and ceilings are made of wood), it has been observed that once the flames reach the ceiling, the wood tends to be exposed to the flames over a wide area and burn intensely. In a typical wooden-finished room during a fire, the combustion behavior progresses from wall ignition, ceiling ignition, and flame propagation from the ceiling to flashover. At this time, the heat generation rate, an indicator of the intensity of combustion, increases exponentially.

[0021] However, as in the building 10 of this embodiment, there has been no prior knowledge of the combustion behavior of a living room 11 during a fire when the main structural components such as columns 12 and beams 13 are left exposed wood. Therefore, in the method for evaluating the evacuation safety performance of a building when the main structural components are exposed wood, considering the combustion behavior of a typical living room with a wooden interior as described above, and taking safety precautions, it is necessary to estimate that a flashover occurred when a part of the living room 11 (for example, a beam 13A, which is wood near the ceiling close to the fire source 18) ignited, and that all exits in the living room 11 would become unusable for evacuation. In other words, with the conventional method for evaluating evacuation safety performance, if a fire occurs in the living room 11, it will be immediately judged as NG (Not Good). For this reason, it is difficult to plan buildings that require a long time to complete evacuation, such as buildings with large living rooms, and if a building with large living rooms is to be planned, it was necessary to make the exposed wood columns 12 and beams 13 fireproof.

[0022] The inventors conducted a full-scale combustion experiment with exposed wooden columns and beams (hereinafter sometimes referred to as "columns and beams") and confirmed that the surface of the columns and beams near the full-scale fire source burned intensely, but the rest of the columns and beams burned slowly. In other words, the inventors discovered that the combustion behavior in a living room with exposed wooden columns and beams during a fire is less intense compared to the combustion behavior in a living room with the general wooden interior described above.

[0023] The evacuation safety performance evaluation method of this embodiment will be described below. Note that the evacuation safety performance evaluation method of this embodiment can be applied to rooms other than those with exposed wooden columns and beams. According to the evacuation safety performance evaluation method of this embodiment, the evacuation safety performance can be appropriately evaluated in buildings with large floor-area rooms.

[0024] <<Evacuation Safety Performance Evaluation Method>> Figure 2 is a flowchart of the evacuation safety performance evaluation method of the first embodiment.

[0025] The calculations and processes described below can be easily performed using a general-purpose data processing device. As the data processing device, a standard computer (e.g., a personal computer) can be used, equipped with a processing unit (CPU), data storage devices such as a hard disk drive, output devices such as a monitor, data input devices such as a mouse and keyboard, and data reading devices such as an optical disc drive. The data processing device that executes the evacuation safety performance evaluation method of this embodiment is sometimes referred to as the "evacuation safety performance evaluation system." This is also the case in other embodiments described later.

[0026] Furthermore, the program for executing the evacuation safety performance evaluation method of this embodiment may be stored in advance in a data storage device, or the program stored on a data storage medium such as an optical disc may be read by a reading device. Alternatively, it may be downloaded from a communication line such as the Internet. The main component of the following operations is a data processing device (computer). This data processing device includes a setting unit that sets conditions, etc., based on data input, and an arithmetic processing unit that performs various calculations on the data. This is the same as in other embodiments described later.

[0027] In the evacuation safety performance evaluation method of this embodiment, as shown in Figure 2, first, a divided space 17 is set in the living room 11 of the building 10 (S001; divided space setting step). Below, the divided section 17 in the living room 11 of the building 10 will be explained with reference to the figure.

[0028] Figure 3A is a plan view of building 10 to which the evacuation safety performance evaluation method of the first embodiment is applied. Figure 3B is a cross-sectional view of building 10 to which the evacuation safety performance evaluation method of the first embodiment is applied.

[0029] As shown in Figure 3A, the living room 11 is divided into multiple sections in plan by beams 12. In the following description, these spaces divided into multiple sections in plan by beams 12 will be referred to as "divided spaces 17". The boundary lines of the divided spaces 17 are the central axis A of beams 12. The living room 11 has multiple divided spaces 17. Specifically, the living room 11 has a total of 15 divided spaces 17, 5 in the X direction and 3 in the Y direction. In the following description, a specific divided space 17 will be referred to by its order in the X and Y directions. For example, the third divided space 17 in the X direction and the second divided space 17 in the Y direction will be referred to as divided space (X3, Y2).

[0030] In the following explanation, when a fire occurs in room 11, the divided space 17 that is in a state that hinders evacuation will be referred to as an "unevacuable space." A "state that hinders evacuation" is determined by at least one of the following: the height of the lower end of the smoke layer, the rising temperature of the smoke layer (the rising temperature of the smoke layer 21 shown in Figure 4, described later), the radiant heat from the flame, and the flame contact conditions. In Figure 1, the divided space 17 that becomes an unevacuable space at a certain point in time, when the fire source 18 is set in the divided space (X1, Y1) as described later, is shaded. The occupant P in room 11 can evacuate without passing through the unevacuable space until they have completed their evacuation from room 11. In the evacuation safety performance evaluation method of this embodiment, assuming that occupants P are in all the divided spaces 17 of room 11, an OK rating is given if it can be evaluated that occupants P in each divided space 17 can evacuate without passing through the unevacuable space, and an NG rating is given if it can be evaluated that occupants P cannot evacuate without passing through the unevacuable space.

[0031] In this embodiment, the living room 11 is equipped with multiple exits 19A and 19B. Exits 19A and 19B are located in different partitioned spaces 17. Specifically, exit 19A is located in partitioned space (X4, Y1), and exit 19B is located in partitioned space (X1, Y2). In the following description, the multiple exits 19A and 19B together, or either one of them, may be referred to as "exit 19".

[0032] Next, the fire source location is set in the divided space 17 (S002; fire source location setting step). In the evacuation safety performance evaluation method of this embodiment, as shown in Figures 3A and 3B, the fire source 18 is first set in the divided space (X1, Y1), and the following steps (S002 to S007) are executed. The size of the fire source 18 is set according to experimental results, for example. As will be described later, the following steps (S002 to S007) are executed until a fire source location is set in all divided spaces 17 (YES in S008).

[0033] Next, an effective exit is set (S003; effective exit setting step). An "effective exit" is an exit that can be used to evacuate from the living room 11. The effectiveness of the effective exit is determined in the effective exit determination step (S006) described later, and if the determination result is satisfactory (specifically, as described later, time t escape ≤ time t smoke The following steps (S003-S005) are executed until (Xi,Yj) is satisfied. Note that, as will be described later, in the case of the first effective exit setting step (S003), all exits 19 of the living room 11 are set as effective exits and the following steps (S003-S005) are executed.

[0034] Next, the time t when evacuation from room 11 is completed. escape The time t is calculated (S004; Evacuation Completion Time Calculation Step). Specifically, the time t escape This is calculated by summing at least some of the following: "time required from the start of the fire to its detection," "time to reach the entrance of the living space," "time to clear the dwelling at the entrance of the living space," "time to reach the entrance of the temporary evacuation area from the entrance of the living space," and "time spent at the entrance of the temporary evacuation area." Factors contributing to "fire detection" include "detection due to smoke rising overhead," "alarm triggered by smoke detector activation," and "information transmission by people." escape Alternatively, an upper limit on the time required to complete evacuation (for example, 5 minutes) may be set.

[0035] Here, time t escapeis the time when evacuation from the partition space farthest from a single effective exit is completed. For example, if only exit 19A is the effective exit, the farthest partition space 17 is the partition space (X1, Y3). In this case, time t escape is the time when evacuation from the partition space (X1, Y3) is completed. Also, for example, if only exit 19B is the effective exit, the farthest partition space 17 is the partition space (X5, Y1) or the partition space (X5, Y3). In this case, time t escape is the time when evacuation from the partition space (X5, Y1) or the partition space (X5, Y3) is completed.

[0036] Also, time t escape may be the time when evacuation from the said partition space farthest from a plurality of effective exits is completed. As described above, in the case of the first effective exit setting step (S003), either exit 19A or 19B is set as the effective exit. For example, if exit 19A and exit 19B are the effective exits, the farthest partition space 17 is the partition space (X5, Y3). In this case, time t escape is the time when evacuation from the partition space (X5, Y3) is completed.

[0037] Next, the time t smoke when the rising temperature of the smoke layer in the partition space (Xi, Yj) with an effective exit reaches a predetermined temperature is calculated for (Xi, Yj) (S005; smoke layer rising temperature predetermined temperature arrival time calculation step). Here, the predetermined temperature is 180°C, but it may be other temperatures. Also, when there are multiple effective exits, for each of the partition spaces 17 with effective exits, the time t smoke (Xi, Yj) is calculated. In this embodiment, for each of the partition space (X4, Y1) with exit 19A and the partition space (X1, Y2) with exit 19B, the time t smoke (Xi, Yj) is calculated. For the calculation, for example, a two - layer zone model is used.

[0038] Figure 4 is an explanatory diagram of the two - layer zone model.

[0039] The two-layer zone model, as shown in Figure 4, is a method of analyzing physical properties such as temperature and concentration within a building 10's living space 11 during a fire, by clearly dividing the upper part into a smoke layer 21 and the lower part into an air layer 22, and assuming that each layer has uniform properties. smoke (Xi, Yj) is the time it takes for the temperature of the smoke layer 21 to rise to a predetermined temperature (e.g., 180°C).

[0040] Next, time t escape ≤ time t smoke The effectiveness of the effective exit is determined by checking (Xi, Yj) (S006; effective exit determination step). Time t escape ≤ time t smoke If (Xi, Yj) is satisfied (YES in S006), proceed to the next step (S007). Time t escape ≤ time t smoke If (Xi, Yj) is not satisfied (NO in S006), that is, time t escape >Time t smoke If (Xi, Yj), return to the valid exit setting step (S003) and execute the subsequent steps.

[0041] In the first effective outlet determination step (S006), all outlets 19 in the living room 11 are determined to be effective outlets. In other words, in the first step, both outlets 19A and 19B are set as effective outlets. In the second and subsequent effective outlet determination steps (S006), the time at which the smoke layer temperature rises to a predetermined temperature (i.e., time t) is determined. smoke Exit 19 of the divided space 17 (from (Xi, Yj) onward) is considered an invalid exit and its validity is not determined. When occupant P evacuates, they cannot use the invalid exit 19 and must use the valid exit 19.

[0042] Time t escape ≤ time t smoke If (Xi, Yj) is satisfied (YES in S006), confirm that the occupant P in room 11 will not be exposed to smoke (S007; step to confirm the safety of occupant evacuation in room). Specifically, confirm that occupant P can evacuate without passing through the divided space 17, which would be impediment to evacuation, until they have completed their evacuation from room 11.

[0043] Finally, check whether a fire source position has been set in all divided spaces 17 (S008). If a fire source position has been set in all divided spaces 17 (YES in S007), terminate (END). If a fire source position has been set in all divided spaces 17 (NO in S007), that is, if there are divided spaces 17 for which a fire source position has not been set, return to the fire source position setting step (S002) and execute the subsequent steps.

[0044] ===Second Embodiment=== Figure 5 is a flowchart of the evacuation safety performance evaluation method of the second embodiment. Figure 6A is a plan view of building 10 to which the evacuation safety performance evaluation method of the second embodiment is applied. Figure 6B is a cross-sectional view of building 10 to which the evacuation safety performance evaluation method of the second embodiment is applied.

[0045] In the first embodiment of the evacuation safety performance evaluation method described above, it was necessary to set a fire source 18 in all divided spaces 17 in the fire source location setting step (S002). However, in the second embodiment of the evacuation safety performance evaluation method, labor can be reduced by narrowing down the divided spaces 17 in which the fire source 18 is set. According to the evacuation safety performance evaluation method of this embodiment, it is possible to appropriately evaluate the evacuation safety performance in buildings with large living spaces and to reduce labor.

[0046] The evacuation safety performance evaluation method of the second embodiment includes a fire source location setting step (S102) and an exit setting step (S103), which differ from the evacuation safety performance evaluation method of the first embodiment described above. The other steps (S101, S104~S108) are the same as S001, S004~S008 in the evacuation safety performance evaluation method of the first embodiment.

[0047] In the fire source location setting step (S102) of this embodiment, first, an evacuation route connecting multiple exits is selected to be a minimum divided space connection route that minimizes the number of divided spaces (S201; minimum divided space connection route selection step). In this embodiment, the minimum divided space connection route 20 is a route connecting exits 19A and 19B, as shown in Figure 5, and is a route that minimizes the number of divided spaces 17. However, if there are multiple minimum divided space connection routes, the route that has a large proportion facing the walls of the living room 11 is selected. In other words, in the example shown in Figure 5, in addition to the minimum partitioned space connection path 20, the path (X1,Y2) → partitioned space (X2,Y2) → partitioned space (X3,Y2) → partitioned space (X4,Y2) → partitioned space (X4,Y1) could also be a candidate for the minimum partitioned space connection path. However, in this case, the minimum partitioned space connection path 20 is selected because it is the path that faces the wall of room 11 the most.

[0048] Next, the planned location of the ignition source is narrowed down to the divided space with an outlet, or the intermediate divided space located at the midpoint of the minimum divided space connection path (S202; planned ignition source location narrowing step). In this embodiment, as shown in Figure 5, the divided spaces with an outlet include the divided space with outlet (X4, Y1) with outlet 19A and the divided space with outlet 19B (X1, Y2), and the intermediate divided space located at the midpoint of the minimum divided space connection path is the divided space (X2, Y1). The planned location of the ignition source is narrowed down to these divided spaces 17. That is, the planned location of ignition source 18 (hereinafter referred to as ignition source 18A) is narrowed down to the divided space (X4, Y1), the planned location of ignition source 18 (hereinafter referred to as ignition source 18B) is narrowed down to the divided space (X1, Y2), and the planned location of ignition source 18C (hereinafter referred to as ignition source 18C) is narrowed down to the divided space (X2, Y1). As a result, unlike the fire source position selection step (S002) of the first embodiment, it is not necessary to set a fire source 18 in all divided spaces 17 in this embodiment, thus saving labor.

[0049] Then, a fire source location is selected from the planned fire source locations (S203; fire source location selection step). The narrowing down of planned fire source locations in S202 and the selection of a fire source location in S203 are sometimes collectively referred to as "narrowing down the fire source locations".

[0050] Furthermore, in the outlet setting step (S103) of this embodiment, unlike the effective outlet setting step (S003) of the first embodiment, the outlets in the divided space where the fire source 18 is set are always disabled (ineffective outlets), thereby saving labor.

[0051] ==Summary== According to this specification, the following methods for evaluating evacuation safety performance are provided.

[0052] (Aspect 1) Embodiment 1 is a method for evaluating the evacuation safety performance of a building having a living room that is divided into a plurality of divided spaces by beams in a planar manner, comprising: a divided space setting step of setting the divided spaces; a fire source location setting step of setting the fire source location in the divided space; an effective exit setting step of setting an effective exit that is effective for evacuation from the living room; and the time t of completion of evacuation from the living room. escape A step for calculating the evacuation completion time, and the time t for the smoke layer temperature in the divided space (Xi, Yj) where the effective exit is located to reach a predetermined temperature. smoke This is an evacuation safety performance evaluation method comprising a step of calculating the smoke layer rise temperature and the time to reach a predetermined temperature for calculating (Xi, Yj).

[0053] According to the above-described embodiment, the evacuation safety performance can be appropriately evaluated in buildings that have large living spaces.

[0054] (Aspect 2) In embodiment 2, the time t escape This is the time required for evacuation to be completed from the divided space furthest from one of the effective exits.

[0055] According to the above-described embodiment, the evacuation safety performance can be appropriately evaluated in buildings that have large living spaces.

[0056] (Aspect 3) In embodiment 3, the time t escape This is the time required for evacuation to be completed from the divided space furthest from the multiple effective exits.

[0057] According to the above-described embodiment, the evacuation safety performance can be appropriately evaluated in buildings that have large living spaces.

[0058] (Aspect 4) In embodiment 4, the time t escape ≤ the aforementioned time t smoke The system includes an effective outlet determination step in which the effectiveness of the effective outlet is determined by confirming (Xi, Yj).

[0059] According to the above-described embodiment, the evacuation safety performance can be appropriately evaluated in buildings that have large living spaces.

[0060] (Aspect 5) In embodiment 5, in the first effective exit determination step, all exits of the living room are determined to be effective exits.

[0061] According to the above-described embodiment, the evacuation safety performance can be appropriately evaluated in buildings that have large living spaces.

[0062] (Aspect 6) In embodiment 6, the effective outlet determination step, in the case of the second and subsequent effective outlet determination steps, determines the outlet of the divided space where the smoke layer rise temperature reaches a predetermined temperature, at time t smoke From (Xi, Yj) onward, invalid exits are not considered valid.

[0063] According to the above-described embodiment, the evacuation safety performance can be appropriately evaluated in buildings that have large living spaces.

[0064] (Aspect 7) Embodiment 7 includes a room occupant evacuation safety confirmation step that confirms that the occupants of the room are not exposed to smoke until the evacuation from the room is completed.

[0065] According to the above-described embodiment, the evacuation safety performance can be appropriately evaluated in buildings that have large living spaces.

[0066] (Pattern 8) In embodiment 8, the process ends when the fire source position is set in all of the divided spaces.

[0067] According to the above-described embodiment, the evacuation safety performance can be appropriately evaluated in buildings that have large living spaces.

[0068] (Aspect 9) In embodiment 9, the effective outlet determination step is performed in the divided space in which the fire source position has not been set.

[0069] According to the above-described embodiment, the evacuation safety performance can be appropriately evaluated in buildings that have large living spaces.

[0070] Furthermore, according to this specification, the following embodiments of evacuation safety performance evaluation systems are provided.

[0071] (Aspect 10) Embodiment 10 is an evacuation safety performance evaluation system that uses a computer to execute the evacuation safety performance evaluation method described in any of Embodiments 1 to 9.

[0072] According to the above-described embodiment, the evacuation safety performance can be appropriately evaluated in buildings that have large living spaces.

[0073] Furthermore, according to this specification, the following embodiments of evacuation safety performance evaluation systems are provided.

[0074] (Aspect 11) Embodiment 11 is a program that causes a computer to execute the evacuation safety performance evaluation method described in any of Embodiments 1 to 9.

[0075] According to the above-described embodiment, the evacuation safety performance can be appropriately evaluated in buildings that have large living spaces.

[0076] Furthermore, according to this specification, buildings of the following embodiments are provided.

[0077] (Aspect 12) Embodiment 12 is a building having a room that includes a plurality of divided spaces divided in a planar manner by beams, and an exit, to which the evacuation safety performance evaluation method described in any of Embodiments 1 to 9 is performed.

[0078] According to the above-described embodiment, the evacuation safety performance can be appropriately evaluated in buildings that have large living spaces.

[0079] ==Other== The embodiments described above are provided to facilitate understanding of the present invention and are not intended to limit its interpretation. Furthermore, the present invention may be modified or improved without departing from its spirit, and it goes without saying that the present invention includes equivalents thereof. [Explanation of Symbols]

[0080] 10 Buildings 11 Room 12,12A,12B pillar 13,13A,13B Beam 14 Walls 15 Ceiling 16 beds 17 divided sections 18,18A,18B,18C Fire source 19A,19B Exit 20 Minimum partitioned spatial connection paths 21 Smoke layer 22 Air layer A central axis of the beam P Residents

Claims

1. A method for evaluating the evacuation safety performance of a building having living spaces that are divided into multiple partitioned spaces by beams in a planar manner, A division space setting step for setting the aforementioned division space, A fire source position setting step in which the fire source position is set in the divided space, A step of setting an effective exit that is effective for evacuation from the aforementioned room, The time t when evacuation from the aforementioned room is completed. escape The steps for calculating the evacuation completion time, The time t in which the smoke layer temperature rises in the divided space (Xi, Yj) containing the effective outlet reaches a predetermined temperature smoke A step to calculate the smoke layer rise temperature and the time to reach a predetermined temperature, which calculates (Xi, Yj), A method for evaluating evacuation safety performance.

2. The aforementioned time t escape This is the time it takes for evacuation to be completed from the divided space furthest from one of the effective exits. The method for evaluating evacuation safety performance according to claim 1.

3. The aforementioned time t escape This is the time it takes for evacuation to be completed from the divided space furthest from the multiple effective exits. The method for evaluating evacuation safety performance according to claim 1.

4. The aforementioned time t escape ≤ the aforementioned time t smoke The system includes an effective outlet determination step, which determines the effectiveness of the effective outlet by confirming (Xi, Yj). The method for evaluating evacuation safety performance according to claim 1.

5. In the first effective exit determination step, the effective exit determination step determines the effectiveness of all exits in the room as effective exits. The method for evaluating evacuation safety performance according to claim 4.

6. In the case of the second and subsequent effective outlet determination steps, the outlet of the divided space where the smoke layer temperature rises to a predetermined temperature is determined at the time t smoke From (Xi, Yj) onward, invalid exits are not considered valid. The method for evaluating evacuation safety performance according to claim 4.

7. The system includes a safety confirmation step for occupants of a room, which confirms that the occupants of the room are not exposed to smoke until the evacuation from the room is completed. The method for evaluating evacuation safety performance according to claim 1.

8. The process ends when the fire source position is set in all of the divided spaces. The method for evaluating evacuation safety performance according to claim 1.

9. In the divided space where the fire source location has not been set, the effective exit determination step is performed. The method for evaluating evacuation safety performance according to claim 4.

10. An evacuation safety performance evaluation system that uses a computer to perform the evacuation safety performance evaluation method described in any one of claims 1 to 9.

11. A program that causes a computer to execute the evacuation safety performance evaluation method described in any one of claims 1 to 9.

12. A building having a living room comprising a plurality of divided spaces divided in a planar manner by beams, and an exit, wherein the evacuation safety performance evaluation method according to any one of claims 1 to 9 is performed.

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