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

Abstract

In buildings with large living spaces, the evacuation safety performance will be appropriately evaluated, and labor will be reduced. [Solution] The evacuation safety performance evaluation method is for a building having a living room that is divided into multiple partitioned spaces by beams in a planar manner, and includes the steps of setting up partitioned spaces, setting the location of the fire source in a partitioned space, setting an exit that will serve as an evacuation exit from the living room, and the time t required for evacuation from the living room to be completed. escape The steps involve calculating the time t for the smoke layer temperature in the divided space (Xi, Yj) where the outlet is located to reach a predetermined temperature. smoke The method includes the steps of calculating (Xi, Yj), and setting the fire source location in a divided space, which includes the steps of selecting a minimum divided space continuation route that connects evacuation routes between multiple exits in such a way that the number of divided spaces is minimized, and narrowing down the fire source location to an exit-equipped divided space having an exit or an intermediate point divided space located at the midpoint of the minimum divided space continuation route.

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 Initiative] [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 and reduce labor in buildings with large living spaces. Other objects of the present invention will become clear 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 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 to set the fire source location in the divided space, an exit setting step to set an exit that will be an escape route from the living room, and the time t for the 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 exit is located to reach a predetermined temperature. smoke The method for evaluating evacuation safety performance comprises: a smoke layer rise temperature determination time to reach a predetermined temperature, which calculates (Xi, Yj); the fire source location setting step comprises: a minimum divided space connection route selection step which selects an evacuation route connecting a plurality of exits to be a minimum divided space connection route that connects the divided spaces in such a way that the number of divided spaces is minimized; and a fire source location narrowing step which narrows down the fire source location to an exit-equipped divided space having an exit, or an intermediate point divided space located at an intermediate point of the minimum divided space connection route.

[0007] Other features of the present invention will be revealed in the specification and drawings described below. [Effects of the Invention]

[0008] According to the above embodiment of the present invention, in buildings having large living spaces, it is possible to appropriately evaluate the evacuation safety performance and reduce labor. [Brief explanation of the drawing]

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

Mode for Carrying Out the Invention

[0010] From the description in this specification and the attached drawings, at least the following matters become clear.

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

[0012] ===First Embodiment=== Figure 1 is an explanatory diagram of the building 10.

[0013] <<Definition of Directions, etc.>> First, while referring to Figure 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 Figure 1, the vertical direction is defined as the "up and down direction", the vertically upward direction is simply defined as the "up direction", and the vertically downward direction is simply defined as the "down direction". Also, among the horizontal directions, the directions perpendicular to each other are defined as 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 Figure 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] Regarding the above definition of directions, etc., unless otherwise specified, it is common to other embodiments of this specification.

[0016] <<Overview>> Next, with reference to Figure 1 again, the outline 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 escapeis calculated based on the total time of at least a part of "the time required from the occurrence of a fire to its detection", "the time to reach the entrance / exit of the living room", "the time to eliminate the stay at the entrance / exit of the living room", "the time to reach from the entrance / exit of the living room to the entrance / exit of the temporary evacuation site", and "the stay time at the entrance / exit of the temporary evacuation site". Note that the factors for "fire detection" include "detection due to smoke reaching above the head", "alarm due to the operation of a smoke detector", "information transmission by people", etc. Also, the time t escape as the upper limit time (for example, 5 minutes) of the evacuation completion time may be set.

[0035] Here, the time t escape is the time when the evacuation from the most distant divided space from one effective exit is completed. For example, assuming that only Exit 19A is the effective exit, the most distant divided space 17 is the divided space (X1, Y3). In this case, the time t escape is the time when the evacuation from the divided space (X1, Y3) is completed. Also, for example, assuming that only Exit 19B is the effective exit, the most distant divided space 17 is the divided space (X5, Y1) or the divided space (X5, Y3). In this case, the time t escape is the time when the evacuation from the divided space (X5, Y1) or the divided space (X5, Y3) is completed.

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

[0037] Next, the time t smoke(Xi, Yj) is calculated (S005; smoke layer rise temperature predetermined temperature arrival time calculation step). Here, the predetermined temperature is 180°C, but it may be any other temperature. Also, if there are multiple effective outlets, the time t is calculated for each of the divided spaces 17 that have an effective outlet. smoke (Xi, Yj) is calculated. In this embodiment, in each of the divided space (X4, Y1) where the exit 19A is located and the divided space (X1, Y2) where the exit 19B is located, time t smoke (Xi, Yj) is calculated. For example, a two-tiered zone model is used for the calculation.

[0038] Figure 4 is an explanatory diagram of the two-tiered 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 multiple 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 to set the fire source location in the divided space, an exit setting step to set an exit that will be an escape route from the living room, and the time t for the 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 exit is located to reach a predetermined temperature. smoke The method for evaluating evacuation safety performance comprises: a smoke layer rise temperature determination time to reach a predetermined temperature, which calculates (Xi, Yj); the fire source location setting step comprises: a minimum divided space connection route selection step which selects an evacuation route connecting a plurality of exits to be a minimum divided space connection route that connects the divided spaces in such a way that the number of divided spaces is minimized; and a fire source location narrowing step which narrows down the fire source location to an exit-equipped divided space having an exit, or an intermediate point divided space located at an intermediate point of the minimum divided space connection route.

[0053] According to the above-described embodiment, in buildings with large living spaces, it is possible to appropriately evaluate the evacuation safety performance and reduce labor costs.

[0054] (Aspect 2) In embodiment 2, the minimum partition space connection route selection step, if there are multiple minimum partition space connection routes, selects the route that has a large proportion of walls facing the living room.

[0055] According to the above-described embodiment, in buildings with large living spaces, it is possible to appropriately evaluate the evacuation safety performance and reduce labor costs.

[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 one of the effective exits.

[0057] According to the above-described embodiment, in buildings with large living spaces, it is possible to appropriately evaluate the evacuation safety performance and reduce labor costs.

[0058] (Aspect 4) In embodiment 4, the time tescape This is the time required for evacuation to be completed from the divided space furthest from the multiple effective exits.

[0059] According to the above-described embodiment, in buildings with large living spaces, it is possible to appropriately evaluate the evacuation safety performance and reduce labor costs.

[0060] (Aspect 5) In embodiment 5, 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).

[0061] According to the above-described embodiment, in buildings with large living spaces, it is possible to appropriately evaluate the evacuation safety performance and reduce labor costs.

[0062] (Aspect 6) In embodiment 6, in the first effective exit determination step, all exits of the living room are determined to be effective exits.

[0063] According to the above-described embodiment, in buildings with large living spaces, it is possible to appropriately evaluate the evacuation safety performance and reduce labor costs.

[0064] (Aspect 7) In embodiment 7, 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.

[0065] According to the above-described embodiment, in buildings with large living spaces, it is possible to appropriately evaluate the evacuation safety performance and reduce labor costs.

[0066] (Pattern 8) Embodiment 8 includes a safety confirmation step for the evacuation of occupants of the room, which confirms that the occupants of the room are not exposed to smoke until the evacuation from the room is completed.

[0067] According to the above-described embodiment, in buildings with large living spaces, it is possible to appropriately evaluate the evacuation safety performance and reduce labor costs.

[0068] (Aspect 9) In embodiment 9, the process ends when the fire source position is set in all of the divided spaces.

[0069] According to the above-described embodiment, in buildings with large living spaces, it is possible to appropriately evaluate the evacuation safety performance and reduce labor costs.

[0070] (Aspect 10) In embodiment 10, the effective outlet determination step is performed in the divided space in which the fire source position has not been set.

[0071] According to the above-described embodiment, in buildings with large living spaces, it is possible to appropriately evaluate the evacuation safety performance and reduce labor costs.

[0072] Furthermore, according to this specification, the following embodiments of evacuation safety performance evaluation systems are provided.

[0073] (Aspect 11) Embodiment 11 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 10.

[0074] According to the above-described embodiment, in buildings with large living spaces, it is possible to appropriately evaluate the evacuation safety performance and reduce labor costs.

[0075] Furthermore, according to this specification, the following embodiments of evacuation safety performance evaluation systems are provided.

[0076] (Aspect 12) Embodiment 12 is a program that causes a computer to execute the evacuation safety performance evaluation method described in any of Embodiments 1 to 10.

[0077] According to the above-described embodiment, in buildings with large living spaces, it is possible to appropriately evaluate the evacuation safety performance and reduce labor costs.

[0078] Furthermore, according to this specification, buildings of the following embodiments are provided.

[0079] (Aspect 13) Embodiment 13 is a building having a room that includes a plurality of partitioned 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 10 is performed.

[0080] According to the above-described embodiment, in buildings with large living spaces, it is possible to appropriately evaluate the evacuation safety performance and reduce labor costs.

[0081] ==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]

[0082] 10 Buildings 11 Room 12,12A,12B pillar 13,13A,13B Beam 14 Wall 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 (in the museum)

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, An exit setting step is to set an exit that will serve as an escape route from the aforementioned living 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 in the divided space (Xi, Yj) containing the 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), It has, The aforementioned fire source position setting step is, A minimum partitioned space continuation route selection step, which selects the evacuation route connecting multiple exits in such a way that the number of partitioned spaces is minimized, A fire source location narrowing step to narrow down the fire source location to the divided space with an outlet having the aforementioned outlet, or to the intermediate point divided space located at the midpoint of the minimum divided space connecting path, Having, Method for evaluating evacuation safety performance.

2. The minimum partition space connection route selection step, if there are multiple minimum partition space connection routes, selects the route that has the largest proportion of facing the walls of the living room. 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 one of the aforementioned exits. The method for evaluating evacuation safety performance according to claim 1.

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

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

6. In the case of the first exit effectiveness determination step, the effectiveness of all exits in the room is determined. The method for evaluating evacuation safety performance according to claim 5.

7. In the case of the second and subsequent outlet effectiveness 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 5.

8. 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.

9. 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.

10. In the divided space where the fire source location has not been set, the outlet effectiveness determination step is performed. The method for evaluating evacuation safety performance according to claim 5.

11. 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 10.

12. A program that causes a computer to execute the evacuation safety performance evaluation method described in any one of claims 1 to 10.

13. A building having a room that includes a plurality of partitioned 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 10 is performed.

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