JP5309739B2 - Partitioning method for architectural space - Google Patents

Description

  The present invention relates to a partitioning method for a building space such as a building room.

In general, a substantially closed architectural space 1 on each floor of a building is partitioned by a partition wall 41 having a height extending from the floor to the ceiling and partitioned into a plurality of rooms (see Patent Document 1).
JP 2007-334683 A

  As the partition pattern, for example, as shown in the sketch of FIG. 1, a reference room 20 having an entrance 21 to the evacuation space 10 such as a common corridor, and a meeting room having an entrance 31 to the reference room 20 are attached. The reference room 20 is further divided into a reference room main part 22 such as a work room and a reference room passage 26 connecting the reference room main part 22 to the auxiliary room 30. Can be considered.

  When a fire breaks out in the attached room 30 in this partition pattern, first, as indicated by a dotted arrow in the figure, the smoke in the attached room 30 flows into the reference indoor passage part 26, passes through the reference indoor passage part 26, and passes through the reference indoor passage part 26. It flows into the main part 22.

  Here, in general, the reference indoor main portion 22 is often designed to have a larger floor area than the reference indoor passage portion 26, and accordingly, the volume becomes larger than the reference indoor passage portion 26 and its smoke storage capacity is increased. Also grows. In addition, when a smoke exhaust port is provided on the ceiling or the like, the amount of smoke exhausted is set based on the size of the floor area in accordance with the law. More than the passage portion 26. Therefore, in the case of this partition pattern, it is effective in terms of evacuation safety to guide the smoke in the auxiliary chamber 30 to the reference indoor main portion 22 via the reference indoor passage portion 26.

  However, if the flow path of smoke from the attached room 30 to the reference indoor main part 22 is long, the smoke fluidity deteriorates due to cooling of the smoke before reaching the reference indoor main part 22, that is, the smoke is the reference. It becomes difficult to reach the indoor main part 22. As a result, the large storable capacity of the reference indoor main section 22 or the amount of exhausted smoke cannot be used effectively, and the smoke stays in the reference indoor passage section 26, and the occupant evacuating from the attached room 30 The risk of being caught by smoke in the indoor passage portion 26 is increased.

  In addition, even when a fire breaks out in the reference room main part 22, if the distance from the attached room 30 to the reference room main part 22 is long, the fire awareness of the occupants in the attached room 30 may be delayed.

  The present invention has been made in view of such a conventional problem, and the building space is formed by a partition wall into a reference indoor main part, an accessory room, and a reference indoor passage part that connects the reference indoor main part to the auxiliary room. When it is partitioned, it is possible to suppress the accumulation of smoke in the reference indoor passage portion due to the fire of the attached room, and the occupants of the attached room can easily recognize the fire of the main part of the reference room, An object of the present invention is to provide a method for partitioning a building space with excellent evacuation safety.

In order to achieve this object, the partitioning method of the architectural space shown in claim 1 is:
A partitioning method for a building space in which a substantially closed building space in a building is partitioned by a partition wall having a height from the floor to the ceiling and divided into a plurality of rooms,
The building space is divided into a reference room having an entrance to an evacuation space and an attached room having an entrance to the reference room,
The reference room is divided into a reference indoor main part and a reference indoor passage part that connects the reference indoor main part to the attached room,
The reference indoor passage portion and the reference indoor main portion are connected so that smoke can be circulated at a boundary portion,
The reference indoor main part has a larger floor area than the reference indoor passage part,
The total value of the smoke exhaust air volume of the reference indoor main part is larger than the total value of the smoke exhaust air volume of the reference indoor passage part,
Finding the length of the flow path of the smoke from the boundary part to the farthest part of the attached room through the reference indoor passage part and the entrance / exit of the attached room,
The architectural space is partitioned so that the obtained length of the distribution route is a predetermined value or less.

Invention of Claim 2 is the partitioning method of the architectural space of Claim 1,
The reference indoor main part is a series of spaces overlooking the majority of the reference indoor main part from the boundary part.
According to the second aspect of the present invention, since the majority of the reference room main part can be seen from the boundary part, it is possible to detect the fire of the reference room main part at an early stage, and to quickly detect the fire and grasp the situation. . In addition, it is easy to recognize the evacuation direction in the main part of the reference room.

Invention of Claim 3 is the partitioning method of the architectural space of Claim 1 or 2,
The distribution route is obtained as the sum of the length of the distribution route in the reference indoor passage portion and the length of the distribution route in the attached room,
The length of the flow path in the reference indoor passage portion is obtained as the length of the route along the center position in the width direction of the reference indoor passage portion,
The length of the distribution path in the attached room is obtained as a linear distance from the entrance / exit of the attached room to the farthest part.
According to the third aspect of the present invention, the length of the obtained distribution route is longer than the actual length of the smoke distribution route, so that it is designed on the safety side for evacuation safety.

Invention of Claim 4 is the partitioning method of the architectural space in any one of Claims 1 thru | or 3, Comprising:
When there are a plurality of the boundary portions,
The farthest portion may be determined starting from a nearest boundary portion among the plurality of boundary portions.
According to the fourth aspect of the present invention, the farthest portion satisfies the condition that the length of the distribution path is equal to or less than the predetermined value, with respect to one of the plurality of boundary portions. Therefore, it is possible to relax the partition design conditions and increase the degree of design freedom.

Invention of Claim 5 is the partitioning method of the building space in any one of Claims 1 thru | or 4, Comprising:
The entrances and exits are arranged for all the attached chambers so that the planar shape of the reference indoor passage portion extending from the entrance and exit of the attached chambers to the boundary portion is L-shaped or straight with only one bent portion. It is characterized by doing.
In general, when a fire breaks out in the main part of the reference room, the residents in the attached room take time to recognize the fire. With respect to this point, according to the invention described in claim 5 above, the plane shape of the reference indoor passage portion extending from the entrance / exit of the accessory chamber to the boundary portion is straight or L-shaped. The person can easily reach the boundary, and can quickly check the fire situation in the main part of the reference room.

Invention of Claim 6 is the partitioning method of the architectural space in any one of Claim 1 thru | or 5, Comprising:
The boundary portion and the entrance / exit are set in a planar positional relationship in which the entrance / exit to the evacuation space is visible from the boundary portion.
In general, when a fire breaks out in the main part of the reference room, there is a problem that the occupant in the attached room takes time to recognize the fire and it is difficult to recognize the evacuation direction. In this regard, according to the invention described in claim 6, the entrance to the evacuation space can be visually confirmed from the boundary portion. Therefore, the occupant in the attached room can easily grasp the evacuation direction as long as the occupant reaches the boundary.

Invention of Claim 7 is the partitioning method of the architectural space in any one of Claim 1 thru | or 6, Comprising:
The floor area of the reference indoor passage is determined according to the design capacity of the attached room.
Generally, if all the residents in the attached room start evacuation at the same time, the evacuation may be delayed in the reference indoor passage. In particular, when the attached room is a fire room, if the occupant cannot evacuate temporarily to the reference room passage, it will affect human life.
In this regard, according to the invention described in claim 7, the floor area of the reference indoor passage portion is determined according to the design capacity of the attached room, so that all the residents in the attached room temporarily move to the reference indoor passage portion. Evacuation is possible, and evacuation safety is excellent.

The invention shown in claim 8 is the partitioning method of the building space according to any one of claims 1 to 7,
The product of the height of the portion of the reference indoor passage portion that is 1.8 m or more from the floor and the passage width of the reference indoor passage portion is set to a value that is at least 1/50 of the floor area of the auxiliary room. It is characterized by.
According to the eighth aspect of the present invention, it is possible to effectively suppress the accumulation of smoke in the reference indoor passage portion.

The invention shown in claim 9 is the partitioning method of the building space according to any one of claims 1 to 8,
A volume of the reference indoor main portion is larger than a volume of the reference indoor passage portion.
According to the ninth aspect of the present invention, a large smoke storage capacity can be expected with respect to the reference indoor main part. Therefore, there is no problem even if the smoke leaked to the reference indoor passage portion due to the fire of the attached room is led to the main portion of the reference indoor portion, and it is possible to effectively suppress the accumulation of smoke in the reference indoor passage portion. .

  According to the tenth aspect of the present invention, the predetermined value is 30 m. In general, if it is within 30 m from the point where smoke is generated, smoke can be discharged from the smoke outlet by effectively using the buoyancy of the smoke itself, or it can be stored in the main part of the reference room. Therefore, according to the above configuration, the smoke generated by the fire in the attached room can be effectively discharged to the main part of the reference room through the boundary part, or can be stored effectively in the main part of the reference room, as a result. Thus, it is possible to more effectively suppress the accumulation of smoke in the reference indoor passage portion.

  According to the partitioning method of the building space according to the present invention, the building space is partitioned by the partition wall into a reference indoor main part, an accessory room, and a reference indoor passage part that connects the reference indoor main part to the accessory room. In this case, it is possible to suppress the accumulation of smoke in the reference indoor passage portion due to the fire of the attached room, and it becomes easy for the occupants of the attached room to notice the fire of the main part of the reference room.

=== First Embodiment ===
Hereinafter, the partitioning method according to the first embodiment will be described with reference to a sketch of the building space 1 of FIG. This sketch shows a corner of a predetermined floor of a building such as a building in plan view.

  This architectural space 1 is a substantially closed space in which the upper and lower sides are sandwiched between a ceiling and a floor (not shown) and the four sides are surrounded by side walls 11. The shared hallway 10 is adjacent to the side wall 11 through the side wall 11 on one side, and an entrance / exit 21 to the shared hallway 10 is provided on the side wall 11.

  The common corridor 10 is connected to an evacuation route such as an emergency staircase (not shown), and corresponds to an evacuation space 10 for evacuating from a fire in the building space 1. Moreover, the height of the side wall 11 extends from the floor to the ceiling, so that the shared corridor 10 and the building space 1 are blocked so that smoke cannot flow except the entrance 21. In the illustrated example, a door is provided at the entrance / exit 21, but it may be simply an opening without being provided.

  The building space 1 is first partitioned into a reference chamber 20 and one or more (eight in the illustrated example) auxiliary chambers 30 by a partition wall 41 having a height from the floor to the ceiling. Here, the reference room 20 is a room having an entrance / exit 21 to the shared corridor 10 serving as the evacuation space, and the attached room 30 is not provided with the entrance / exit 21 to the shared corridor 10 to the reference room 20. It is a room such as a meeting room having only the entrance 31. Each auxiliary chamber 30 is partitioned by a partition wall 41 so that smoke cannot be circulated from other than the entrance / exit 31. In the illustrated example, a door is provided at the entrance / exit 31, but it may be simply an opening without being provided.

  The reference chamber 20 further includes a reference indoor main portion 22 and a reference indoor passage that is a passage-like space connecting the reference indoor main portion 22 to the auxiliary chamber 30 by a partition wall 41 having a height from the floor to the ceiling. The unit 26 is partitioned. Here, the reference indoor main part 22 is, for example, that a person standing at the boundary portion 24 can look over the majority in the reference indoor main part 22 (more than half of the space in the reference indoor main part 22). It is a series of such spaces, so-called main rooms such as office rooms. Therefore, the floor area of the reference indoor main section 22 is larger than the floor areas of the reference indoor passage section 26 and each of the attached rooms 30.

  The reference indoor main portion 22 and the reference indoor passage portion 26 communicate with each other as a boundary portion 24 in an opening formed at a height from the floor to the ceiling in a part of the partition wall 41. That is, it is connected via the boundary portion 24 so that smoke can be distributed and people can pass therethrough. However, in a portion other than the boundary portion 24, a partition wall 41 exists between the reference indoor main portion 22 and the reference indoor passage portion 26, so that passage of smoke as well as passage of people is impossible. Is blocked.

One or more smoke exhaust ports (not shown) for discharging smoke to the outside in the event of a fire are installed on the ceiling of the reference indoor main section 22 and the ceiling of the reference indoor passage section 26, respectively. The total value of the smoke exhaust air volume (m ³ / min) of the smoke exhaust port of the reference indoor main section 22 and the total value of the smoke exhaust air volume of the smoke exhaust outlet of the standard indoor passage section 26 are respectively the size of the floor area. It is decided according to the size. Here, since the floor area of the reference indoor main portion 22 is larger than the reference indoor passage portion 26 as described above, the total value of the smoke exhaust air volume at the exhaust port of the reference indoor main portion 22 is calculated as the reference indoor passage. More than the total value of the amount of smoke discharged from the smoke outlet of the section 26. Further, based on the size relationship of the floor area, the volume of the reference indoor main portion 22 is larger than the volume of the reference indoor passage portion 26.

  Therefore, when a fire breaks out in the auxiliary chamber 30, the smoke in the auxiliary chamber 30 first flows into the reference indoor passage portion 26 as shown by the dotted arrow in the figure, and the smoke exhausted from the ceiling of the reference indoor passage portion 26 The smoke exhausted by the mouth but not exhausted is leaked to the reference indoor main section 22 having a large smoke storage capacity through the boundary portion 24 and the exhaust outlet of the reference indoor main section 22 Will be exhausted to the outside.

  However, the fluidity of the smoke is based on the buoyancy due to the temperature. Therefore, as the horizontal distance from the fire point increases, the smoke fluidity decreases due to the smoke temperature drop. That is, in the case of the building space 1 described above, if the distance from the fire point of the attached room 30 to the boundary part 24 is long, the fluidity of smoke to be stored or discharged in the reference room main part 22 is Therefore, the large smoke storage capacity or the amount of smoke exhausted in the reference indoor main section 22 cannot be effectively used. As a result, the smoke stays in the reference indoor passage section 26, and there is a high risk that the occupant evacuating from the attached room 30 will be wound on the smoke in the reference indoor passage section 26.

  In this regard, in the partitioning method according to the first embodiment, when the primary layout is determined at the level as described above, the following check is performed, and the layout change is repeated until this check is satisfied. Yes.

  That is, first, the length (horizontal length) of the smoke distribution path from the boundary portion 24 to the farthest part of the auxiliary chamber 30 is obtained via the reference indoor passage portion 26 and the entrance / exit 31 of the auxiliary chamber 30, and The obtained length is compared with a predetermined limit value (corresponding to a “predetermined value” in the claims). As will be described later, this limit value is set in advance to, for example, 30 m with reference to Article 126-3 of the Building Standard Law Enforcement Ordinance. If the length of the obtained distribution route is equal to or less than the limit value, it is determined that the distribution route is safe and the layout examination work ends. On the other hand, if the length exceeds the limit value, it is dangerous. It is determined that there is a layout change, and the above check is repeated for the layout plan after the change.

  Hereinafter, the contents of this check will be described using a specific example. In the case of the example of FIG. 1, the portion 33 of the auxiliary chamber 30 farthest from the boundary portion 24 (hereinafter referred to as the farthest portion 33) is a portion 33 indicated by a black triangle symbol. The smoke circulation path connecting the farthest portion 33 and the boundary 24 is a path indicated by a dotted arrow in FIG.

  Therefore, first, the length of the distribution route is obtained. As an example of the method, the length of the distribution route in the reference indoor passage portion 26 is set at the center position in the width direction of the reference indoor passage portion 26. As the length of the route along the passage, the length of the distribution route in the accessory chamber 30 is obtained as a linear distance from the farthest part 33 to the entrance / exit 31 of the accessory chamber 30, and the sum of the obtained lengths. A method for obtaining the length of the smoke distribution channel is mentioned. Here, since the actual smoke distribution path spreads concentrically from the fire point, it is considered to take a shortcut such as crossing the passage portion 26 diagonally without following a line parallel to the reference indoor passage portion 26. Therefore, according to the above calculation method, it is calculated longer than the actual distribution route of smoke, that is, it is calculated on the safe side in terms of evacuation safety, so there is no problem.

Then, when the obtained length is equal to or less than the limit value (30 m), it is determined that “there is no problem for evacuation safety” and the layout examination work is ended.
On the other hand, if the limit value is exceeded, it is determined that there is a problem with evacuation safety and the layout is changed. For example, in this example, a new boundary portion 24b is additionally provided as shown in FIG.

  Then, the above check is repeated under the condition that the new boundary portion 24b is additionally provided. At this time, the farthest part from the boundary part is redetermined from the nearest boundary part among the plurality of boundary parts 24 and 24b. This is the portion 33 of FIG. 2 because the original farthest portion was calculated from the boundary portion 24, but this portion 33 is closer to the other boundary portion 24b and the closer boundary portion. This is because if the length of the distribution path is calculated by counting 24b, it will be well within the limit value, and in this case, there is a possibility that a part that can be the farthest part may occur in another position.

  Therefore, when the farthest part from each boundary part 24, 24b is re-determined starting from the nearest boundary part among the plurality of boundary parts 24, 24b, first, the boundary part 24 is more than the boundary part 24b. As the nearest farthest portion, a portion 33a in FIG. 2 is newly selected. On the other hand, a portion 33b in FIG. 2 is selected as the farthest portion closer to the boundary portion 24b than to the boundary portion 24. And the farthest part 33b which concerns on the longest length among the length of the flow path from these boundary parts 24 to the farthest part 33a and the length of the flow path from the boundary part 24b to the farthest part 33b is , It is redetermined to be the farthest part from the boundary. Therefore, if the length of the distribution route from the farthest portion 33b to the boundary portion 24b is equal to or less than the limit value, the layout change is terminated, and if not, the layout change and check are repeated. Incidentally, it goes without saying that the entire layout may be reviewed without adding a new boundary as described above.

=== Second Embodiment ===
In the partitioning method according to the second embodiment, in addition to the condition that the length of the smoke circulation path from the boundary portion 24 to the farthest portion 33 is equal to or less than the limit value according to the first embodiment, The partition design is performed in consideration of the following four conditions. Of course, it is best if all conditions are taken into account, but it is not always necessary to satisfy all conditions, and any one of them may be used.

(1) First condition The first condition is that all the entrances / exits 31 such that the planar shape of the reference indoor passage portion 26 extending from the entrance / exit 31 of the accessory chamber 30 to the boundary portion 24 is linear or L-shaped. It is arranged with respect to the attached room 30.

  For example, when the primary layout is as shown in FIG. 3A, that is, when the route from the accessory chamber 30 to the boundary portion 24 is bent a plurality of times in a crank shape (see dotted arrows), The occupants of the attached room 30 have difficulty in reaching the reference room main part 22, and as a result, it takes time to detect a fire in the reference room main part 22, and conditions for solving this problem It is.

  Here, in order to satisfy the first condition with respect to the primary plan of FIG. 3A, as shown in the modified plan of FIG. 3B, the boundary portion 24 is closed and moved to the boundary portion 24a, and a new boundary portion 24b is added. Just set up. Then, the planar shape of the reference indoor passage portion 26 extending from the entrance / exit 31 provided in each auxiliary chamber 30 to at least one of the boundary portion 24a and the boundary portion 24b is equal to the bent portion for all the auxiliary chambers 30. As a result, the residents in any attached room 30 can easily reach the boundary portion 24a or the boundary portion 24b, and the fire condition of the reference indoor main portion 22 can be quickly determined. It becomes possible to confirm.

  In the case of this example, the same effect as the case where the entrance / exit 31 of the auxiliary chamber 30 is indirectly rearranged by the relocation of the boundary portion 24a and the additional installation of the boundary portion 24b was exhibited. The first condition may be satisfied by moving or adding the entrance / exit 31 of the attached chamber 30 without changing the portion 24.

(2) Second condition The second condition is that the boundary portions 24a, 24b and the entrance / exit are in such a plane positional relationship that the entrance / exit 21 to the shared corridor as the evacuation space 10 can be seen from any of the boundary portions 24a, 24b. 21 is set. "
In general, when a fire breaks out in the main part 22 of the reference room, the residents in the attached room 30 have a problem that it takes time to recognize the fire and it is difficult to recognize the evacuation direction. This is a condition for solving the problem.

  That is, in the primary plan of FIG. 4A, the entrance / exit 21 to the evacuation space 10 can be seen from one boundary part 24a, but the partition wall 41 is obstructed from the other boundary part 24b, and the entrance / exit 21 cannot be seen, From the boundary portion 24b, it is difficult to recognize the evacuation direction in the reference indoor main portion 22. Therefore, in the proposed change, as shown in FIG. 4B, the entrance / exit 21 to the evacuation space 10 is moved to a position where it can be seen from the boundary portion 24b, thereby satisfying the second condition. Needless to say, the second condition may be satisfied by additionally installing the entrance 21 without being relocated.

(3) Third Condition The third condition is that “the floor area of the reference indoor passage portion 26 is determined according to the design capacity of the auxiliary chamber 30”.
In general, if all the residents in the attached room 30 start evacuation at the same time, there is a risk that the evacuation will be delayed in the reference indoor passage portion 26. In particular, when the attached room 30 is a fire room, if the occupant cannot temporarily evacuate to the reference indoor passage section 26, there is a risk of affecting human life. Therefore, the third condition is defined to solve this.

Here, the floor area A [m ² ] of the reference indoor passage section 26 according to the third condition is the designed capacity C [person] of the attached room 30 and the required residence area A ₀ [m ² / person] per person. Can be calculated by the following formula.
A ≧ A ₀ × C
The required residence area A ₀ in the above equation is given as 0.3 [m ² / person] based on the Evacuation Safety Verification Act (Ministry of Construction Notification No. 1441 in 2000).

(4) Fourth condition The fourth condition is that “when there are a plurality of the attached chambers 30, the height of a portion of the reference indoor passage portion 26 that is 1.8 m or more from the floor surface and the passage of the reference indoor passage portion 26. The product of the width and the width is set to a value of 1/50 or more of the maximum value of the floor area of the ancillary chamber 30 ".

The fourth condition is based on the following concept.
First, according to the standards for smoke exhausting equipment (Article 126-3 of the Building Standards Law Enforcement Ordinance), the area of the smoke exhaust port is required to be at least 1/50 of the floor area of the fire room.
Further, since the amount of smoke generated when a fire breaks out in the attached room 30 is considered to increase as the floor area of the attached room 30 increases, attention is paid to the attached room having the largest floor area among the plurality of attached rooms 30. It is appropriate to do.
Furthermore, in the Evacuation Safety Verification Law (Ministry of Construction Notification No. 1441 in 2000), the portion with a limit smoke layer height of 1.8 m or more is regarded as a smoke outlet. A portion where the limit smoke layer height is 1.8 m or more in 26 is regarded as a simulated smoke exhaust.

And considering these three ways of thinking, the standard of smoke exhaust equipment at the beginning (Article 126-3 of the Building Standard Law Enforcement Ordinance) is the passage height H of the reference indoor passage portion 26 and the passage width D of the passage portion 26. And the maximum value A _max of the floor area of the attached chamber 30 is expressed by the following formula (see the longitudinal sectional view of the reference indoor passage portion 26 in FIG. 5).
D (H-1.8) ≧ A _max / 50
And the above expression is expressed in words by the above fourth condition. Therefore, if this 4th condition is satisfied, the accumulation | storage of smoke in the reference | standard indoor channel | path part 26 can be suppressed more effectively, and evacuation safety performance can be improved.

=== Other Embodiments ===
As mentioned above, although embodiment of this invention was described, this invention is not limited to this embodiment, The deformation | transformation as shown below is possible in the range which does not deviate from the summary.

  In the first embodiment described above, as an example of a method for obtaining the length of the smoke circulation path from the boundary portion 24 to the farthest portion 33, “the length of the circulation path in the reference indoor passage portion 26 is referred to as the reference length. Although the method of “determining the length of the route along the center position in the width direction of the indoor passage portion 26” is shown, it is not limited to this, and the calculation method is appropriately changed according to the actual situation of the smoke circulation route. May be.

  For example, the length of the smoke distribution route may be obtained as the shortest distance (distance on the shortest route) in the smoke distribution route from the boundary 24 to the farthest portion 33, as indicated by the dotted line in FIG. Although this method is designed to be more dangerous than the first embodiment described above, the degree of freedom in designing the partition can be increased.

  In the above-described first embodiment, 30 m is exemplified as an example of the limit value, but this value of 30 m is determined as an example based on the concept of Article 126-3 of the Building Standard Law Enforcement Ordinance for the purpose of clarifying the limit value. It may be changed as appropriate according to the actual situation and preconditions. That is, the above limit value is set according to the horizontal distance from the smoke outlet closest to the boundary portion 24 to the boundary portion 24 among the smoke outlets of the reference indoor main section 22 and the amount of smoke exhausted from the smoke outlet. It may be changed.

  For example, 30m, which is the “horizontal distance specified in Article 126-3, Paragraph 1, Item 3 of the Building Standards Law Enforcement Ordinance,” is a standard that does not require a planar shape. It can be considered as a limit value assuming a state of diffusing in four directions, that is, a situation where a temperature drop is likely to occur. On the other hand, the passage-like space such as the reference indoor passage portion 26 is generally covered with walls in two directions, and smoke diffusion is limited to the remaining two directions, so that the temperature is not easily lowered. Therefore, it is possible to make the limit value larger than 30 m in the passage-shaped space. Further, the length of the distribution path in the reference indoor passage portion 26 may be calculated as the effective length on the smoke flow.

The concept of Article 126-3 above is as follows. First, Article 126-3 (final revision: Decree No. 235 of August 3, 2007) stipulates as follows.
“For the smoke vents, the horizontal distance from each part of the smoke-proof section to one of the smoke-exhaust sections is 30 meters or less for each of the sections (smoke-proof sections) partitioned by the smoke barrier. , Install on the top of the ceiling or wall "
According to Article 126-3, if a smoke exhaust port is arranged on the ceiling within a horizontal distance of 30 m from the fire point, smoke can be exhausted from the smoke exhaust port without any problem. That is why this is the basis for setting the above-mentioned limit value of 30 m. Therefore, instead of the above description of “30 m”, the notation of the limit value can be rephrased as “the horizontal distance defined in Article 126-3, Paragraph 1, Item 3 of the Building Standard Law Enforcement Ordinance”.

  In the above-described embodiment, as an example of the partition pattern, as shown in FIGS. 1 to 4, the example in which the planar shape of the bent portion of the reference indoor passage portion 26 is a right angle is shown. For example, an acute angle or an obtuse angle may be used.

  In the above-described embodiment, the presence / absence of the installation of the smoke exhaust port in the auxiliary chamber 30 is not mentioned, but the smoke exhaust port may or may not be provided in the auxiliary chamber 30. However, evacuation safety can be improved by providing it.

  In the first embodiment described above, the reference indoor main portion 22 is defined as “a series of spaces over which the majority of the reference indoor main portion 22 can be seen from the boundary portion 24”, but is not limited thereto. Instead of this, for example, it may be defined as “a series of spaces without fixed objects that hinder the flow of smoke during a fire” or “a series of spaces without fixed objects for use”. Here, the “fixed matter that prevents the flow of smoke” is, for example, a thing with a height extending from the floor to the ceiling, and thus a partition with a height that does not extend from the floor to the ceiling. This does not apply to walls. And if it is a space without such a fixed object, smoke can be stored without hindering the flow of smoke, and if there is a smoke outlet, smoke can be exhausted effectively.

It is a sketch of the building space 1 for demonstrating the partition method which concerns on 1st Embodiment. It is a sketch of the building space 1 for demonstrating the partition method which concerns on 1st Embodiment. It is a sketch of the building space 1 for demonstrating the partitioning method which concerns on 2nd Embodiment, Comprising: The primary plan of a layout is shown in FIG. 3A, The same change plan is shown in FIG. 3B. It is a sketch of the building space 1 for demonstrating the partition method which concerns on 2nd Embodiment, Comprising: The primary plan of a layout is shown to FIG. 4A, The same change plan is shown to FIG. 4B. It is a longitudinal cross-sectional view of the reference | standard indoor channel | path part 26 for demonstrating the partition method which concerns on 2nd Embodiment. It is a sketch of the building space 1 for demonstrating other embodiment.

Explanation of symbols

1 building space, 10 common corridor (evacuation space), 11 side walls,
20 reference rooms, 21 doorways, 22 reference room main parts,
24 boundary part, 24a boundary part, 24b boundary part,
26 reference indoor passage, 30 attached room, 31 doorway,
33 Farthest part (farthest part of the attached room),
33a The farthest part (the farthest part of the attached room),
33b The farthest part (the farthest part of the attached room),
41 partition wall

Claims (10)

A partitioning method for a building space in which a substantially closed building space in a building is partitioned by a partition wall having a height from the floor to the ceiling and divided into a plurality of rooms,
The building space is divided into a reference room having an entrance to an evacuation space and an attached room having an entrance to the reference room,
The reference room is divided into a reference indoor main part and a reference indoor passage part that connects the reference indoor main part to the attached room,
The reference indoor passage portion and the reference indoor main portion are connected so that smoke can be circulated at a boundary portion,
The reference indoor main part has a larger floor area than the reference indoor passage part,
The total value of the smoke exhaust air volume of the reference indoor main part is larger than the total value of the smoke exhaust air volume of the reference indoor passage part,
Finding the length of the flow path of the smoke from the boundary part to the farthest part of the attached room through the reference indoor passage part and the entrance / exit of the attached room,
A partitioning method for an architectural space, wherein the architectural space is partitioned so that the obtained length of the distribution route is equal to or less than a predetermined value. It is the partitioning method of the architectural space according to claim 1,
The partitioning method of building space, wherein the reference indoor main part is a series of spaces overlooking the majority of the reference indoor main part from the boundary part. A partitioning method for a building space according to claim 1 or 2,
The distribution route is obtained as the sum of the length of the distribution route in the reference indoor passage portion and the length of the distribution route in the attached room,
The length of the flow path in the reference indoor passage portion is obtained as the length of the route along the center position in the width direction of the reference indoor passage portion,
A partitioning method for a building space, wherein the length of the distribution path in the attached room is obtained as a linear distance from the entrance / exit of the attached room to the farthest part. A building space partitioning method according to any one of claims 1 to 3,
When there are a plurality of the boundary portions,
The partitioning method for an architectural space, wherein the farthest part is determined starting from the nearest boundary part among the plurality of boundary parts. A partitioning method for a building space according to any one of claims 1 to 4,
The entrances and exits are arranged for all the attached chambers so that the planar shape of the reference indoor passage portion extending from the entrance and exit of the attached chambers to the boundary portion is L-shaped or straight with only one bent portion. A partition method for an architectural space characterized by: A partitioning method for a building space according to any one of claims 1 to 5,
A partitioning method for an architectural space, wherein the boundary portion and the entrance / exit are set in a planar positional relationship in which the entrance / exit to the evacuation space can be seen from the boundary portion. A partitioning method for a building space according to any one of claims 1 to 6,
A partitioning method for a building space, wherein the floor area of the reference indoor passage is determined according to the design capacity of the attached room. A partitioning method for a building space according to any one of claims 1 to 7,
The product of the height of the portion of the reference indoor passage portion that is 1.8 m or more from the floor and the passage width of the reference indoor passage portion is set to a value that is at least 1/50 of the floor area of the auxiliary room. A partition method for building space characterized by A partitioning method for a building space according to any one of claims 1 to 8,
A partitioning method for a building space, wherein the volume of the main part of the reference room is larger than the volume of the passage part of the reference room. A partitioning method for a building space according to any one of claims 1 to 9 ,
The partitioning method according to claim 1, wherein the predetermined value is 30 m.