High-rise residence good in ventilation and lighting and capable of saving land

Abstract

The invention relates to a high-rise residence with good ventilation and lighting and land conservation, which belongs to a residential building plane design technology, and is characterized in that the design of a traditional high-rise residence is innovated, and the space in four households is designed in a shape like a Chinese character'pin 'on the spatial layout, so that the whole building is approximately square, and the building area is maximized; (in plane geometry, the area of a circle is the largest, and then a square is arranged), the space utilization rate is reasonably improved through design skills, and the effective building area is increased; a ventilation and lighting roadway is arranged between the indoor space of the rear two residential units and the elevator room, so that the indoor space of the rear unit has good lighting performance and ventilation performance, good ventilation and lighting performance are achieved, and the plot ratio is increased. Each layer is provided with a 35 m < 2 > fitness and neighborhood communication activity center, each unit (household) is provided with a 3 m < 2 > lattice layer type storage room, and the plot ratio is further improved and is increased by 50% compared with a traditional common design plot ratio.

Description

Technical Field

[0001] The invention belongs to the technical field of construction design, and in particular relates to a high-rise residential building with good ventilation and lighting and saving land. Background Art

[0002] Housing design is related to the rational use of land resources and the improvement of the living environment, and is very important to the national economy and people's livelihood. With the implementation of urbanization in my country, in order to save land resources, my country's housing design has gradually developed from the original multi-story one-elevator two-family to two-elevator multi-family high-rise buildings.

[0003] At present, the design of small-rise (high-rise) residential buildings generally adopts a design mode of combining two elevators and multiple households, and arranging them in a straight line and connecting them in an interlaced manner.

[0004] This traditional design model has the following problems: 1. Insufficient ventilation and lighting. Generally, each household has only 2 to 3 ventilation and lighting surfaces. The unit (household) in the middle has only two sides for lighting, and the ventilation conditions are also poor; 2. The spatial layout is not reasonable, and the effective land utilization rate is low; 3. The apartment design is at two extremes. The space of small and medium-sized apartments is small and the comfort is poor, while the area of ​​large apartments (luxury houses) is too large, and the total price makes it prohibitive for the middle and low-income groups; 4. For an area of ​​less than 130 square meters, the traditional design cannot design four bedrooms, two living rooms, two bathrooms and one kitchen with separate dynamic and quiet areas. The traditional design generally has poor privacy and lacks convenient and practical humanized design concepts. In view of this, this plan was created. Summary of the invention

[0005] In view of the deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a high-rise residential building with good ventilation and lighting and saving land. The high-rise residential building has the characteristics of good ventilation and lighting, spacious and bright, transparent and comfortable, reasonable layout, and moderate apartment type, providing support for improving the urban living environment.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a high-rise residential building with good ventilation and lighting and saving land, wherein each floor of the high-rise residential building is composed of two residential units and a public auxiliary unit, the two residential units are arranged in a front-to-back interval, each of the residential units has two indoor spaces, the four indoor spaces are arranged in a herringbone shape, the distance between the two residential units is 4.6-5 meters, the indoor spaces of the two households in the first residential unit are spliced ​​together, and the indoor spaces of the two households in the second residential unit are arranged in an interval, and the length of the second residential unit is 2.8-3.5 meters longer than that of the first residential unit;

[0007] The public ancillary unit includes an elevator vestibule and a public activity room. The elevator vestibule is located between the indoor spaces of four households. The indoor spaces of the four households are connected to the elevator vestibule. The public activity room is located behind the elevator vestibule. The public activity room is located between the indoor spaces of two households in the latter residential unit. A ventilation and lighting alley is formed between the indoor space of the latter residential unit and the public activity room.

[0008] Furthermore, the indoor spaces of the two households in the aforementioned residential unit have the same structure and are arranged in a mirror image. The aforementioned indoor space consists of four bedrooms, two bathrooms, a dining room, a living room and a kitchen. The four bedrooms are arranged in a matrix, and an aisle is formed between the four bedrooms. The living room, dining room and kitchen are arranged in sequence from front to back. The four bedrooms are located on the left side of the dining room, living room and kitchen. One of the bathrooms is located between the bedrooms in the first quadrant and the bedrooms in the second quadrant, and the other bathroom is located between the dining room and the bedroom. The two bedrooms near the side are provided with bay windows, the bay window of the bedroom located on the front side faces forward, and the bay window of the bedroom located on the back side faces sideways. The front side of the living room and the adjacent bedroom is provided with a balcony.

[0009] The indoor spaces of the two households in the latter residential unit have the same structure and are arranged in a mirror image. The latter indoor space consists of three bedrooms, a study, two bathrooms, a living room, a dining room and a kitchen. The three bedrooms and the study are arranged in a matrix. The living room, the dining room and the kitchen are arranged in sequence from left to right and are located behind the bedrooms. One bathroom of the latter indoor space is located between the bedroom in the third quadrant and the study in the fourth quadrant. The other bathroom of the latter indoor space is located between the bedroom and the dining room. The two bedrooms on the outward side of the latter indoor space are respectively formed with bay windows and balconies; the living room of the latter indoor space is formed with a balcony on the front side;

[0010] The bedroom, bathroom, living room and study in the indoor space are provided with at least one bay window, balcony or ventilation window.

[0011] Furthermore, the bay window has a width of 80 cm and movable window sashes are arranged on the sides of the bay window.

[0012] Furthermore, the balcony located on the side is semi-enclosed, and movable window sashes are arranged on the side of the balcony located on the side.

[0013] Furthermore, the building density and indoor land space of the high-rise residential building are as follows:

[0014] Front unit: 12.0-13.1 meters long, 8.0-8.8 meters wide, excluding kitchen, building area 129-156 square meters;

[0015] Rear unit: 10.9-11.9 meters long, 8.0-8.9 meters wide, excluding kitchen, construction area 118-142.6 square meters;

[0016] Take the construction area of ​​each floor of a medium-sized apartment as an example: 531 square meters;

[0017] The floor space of this apartment is 31 meters long and 24.9 meters wide. With the distance between buildings being 35 meters and the spacing between buildings being 13 meters, the total floor space of this apartment is 2,636 square meters.

[0018] Building density = building area / land area = 531 / 2636 = 20.1%.

[0019] Furthermore, the volume ratio of the high-rise residential building is as follows: volume ratio = total building area / total land area = 531*18 / 2636 = 3.63. (As the length and width of other apartment types change, their areas also change accordingly, and the impact on the volume ratio, etc. is very small and can be ignored)

[0020] Furthermore, the public activity room includes a pedestrian stairwell and a fitness and neighborhood exchange activity center; four grid-type storage rooms, three of which are located on the right side of the pedestrian stairwell, and the other grid-type storage room is located on the rear side of the pedestrian stairwell, and the activity center is located on the right side of the three grid-type storage rooms.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. In terms of spatial layout, the indoor spaces of the four households adopt a Chinese-T-shaped design, making the entire building approach a square plan layout (four-unit combination). In plane geometry, the circle has the largest area, followed by the square. At the same time, full use is made of the ventilation and lighting alley between the indoor space of the rear residential unit and the public activity room, so that the indoor space of the rear residential unit has good lighting and ventilation. While meeting the requirements of residential building specifications, the design cleverly utilizes the space, increases the effective building area and improves the volume ratio, which is more than 50% higher than the average volume ratio of traditional ordinary designs.

[0023] 2. In order to improve the ventilation effect, some existing architectural elements (such as bay windows and side balconies) are utilized, the bay window width is increased to 80cm, and side (south-facing) movable window sashes are installed. The side balcony is designed to be semi-enclosed, and south-facing movable window sashes are also installed to adjust the direction of airflow. They are designed in part of the exterior wall to form an uneven scene. The movable fan is equivalent to a guide plate, which generates a pressure difference at the air outlet under the action of natural wind, promotes airflow movement and promotes air circulation inside and outside the room.

[0024] 3. Design a 3-square-meter grid storage room for each household next to the stairwell to solve the problem of small modern residential areas and nowhere to store temporary items. At the same time, design a 35-square-meter activity center on each floor, which can not only provide fitness and exercise, but also enhance the mutual communication, unity and coordination of modern building neighborhood relations. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the plan structure of a single-story residential unit and a public auxiliary unit in the present invention;

[0026] Figure 2 This is a schematic structural diagram of a high-rise residential building with good ventilation and lighting and saving land in the present invention;

[0027] Figure 3 It is a rear view (rear view) structural schematic diagram of a high-rise residential building with good ventilation and lighting and saving land in the present invention;

[0028] Figure 4 The side view schematic diagram of the structure of a high-rise residential building with good ventilation and lighting and saving land in the present invention.

[0029] Markings in the figure: 1. Ventilation and lighting alley; 2. Bay window; 3. Ventilation window; 4. Balcony; 5. Indoor space; 6. Public ancillary unit. DETAILED DESCRIPTION

[0030] In order to make the above features and advantages of the present invention more obvious and easy to understand, embodiments are given below with reference to the accompanying drawings for detailed description as follows.

[0031] This embodiment provides a high-rise residential building with good ventilation and lighting and saving land. In this embodiment, the high-rise residential building has 18 floors, and each floor is composed of two residential units and a public auxiliary unit 6.

[0032] The two residential units are spaced apart from each other, each of the residential units has two indoor spaces 5, the four indoor spaces 5 are arranged in a herringbone shape, the distance between the two residential units is 4.6-5 meters, the two indoor spaces 5 of the former residential unit are spliced ​​together, and the two indoor spaces 5 of the latter residential unit are spaced apart, and the length of the latter residential unit is 2.8-3.5 meters longer than that of the former residential unit.

[0033] The two indoor spaces 5 in the first residential unit have the same structure and are arranged in a mirror image. The first indoor space 5 consists of four bedrooms, two bathrooms, a dining room, a living room and a kitchen. The four bedrooms are arranged in a matrix, and a corridor is formed between the four bedrooms. The living room, dining room and kitchen are arranged in sequence from front to back. The four bedrooms are located on the left side of the dining room, living room and kitchen. One of the bathrooms is located between the bedrooms in the first quadrant and the bedrooms in the second quadrant, and the other bathroom is located between the dining room and the bedroom. The two bedrooms near the side are provided with bay windows 2. The bay window 2 of the bedroom located on the front side faces forward, and the bay window 2 of the bedroom located on the back side faces sideways. Specifically, the bay window 2 is 80 cm wide, and a movable window sash is arranged on the side of the bay window 2. The front side of the living room and the adjacent bedroom is provided with a balcony 4. The two indoor spaces 5 in the second residential unit have the same structure and are arranged in a mirror image. The bedroom, bathroom and living room in the indoor space 5 are provided with at least one bay window 2, balcony 4 or ventilation window 3.

[0034] The latter indoor space 5 consists of three bedrooms, a study, two bathrooms, a living room, a dining room and a kitchen. The three bedrooms and the study are arranged in a matrix. The living room, dining room and kitchen are arranged in sequence from left to right and are located behind the bedrooms. One bathroom of the latter indoor space 5 is located between the bedroom in the third quadrant and the study in the fourth quadrant. The other bathroom of the latter indoor space 5 is located between the bedroom and the dining room. The two bedrooms on the outward side of the latter indoor space 5 are respectively formed with a bay window 2 and a balcony 4; the bay window 2 is 80 cm wide, and movable window sashes are arranged on the side of the bay window 2. The balcony 4 located on the side is semi-enclosed, and movable window sashes are arranged on the side of the balcony 4 located on the side. The living room of the latter indoor space 5 is formed with a balcony 4 on the front side; the bedroom, bathroom, living room and study in the indoor space 5 are provided with at least one bay window 2, balcony 4 or ventilation window 3. In the latter indoor space 5, there are many electrical appliances in the living room, dining room and kitchen, and dynamic activities are frequent. These designs are assembled into one area (dynamic area) on the same axis. The bedroom and study need to be relatively quiet, and are designed in another gathering area (resting area). A partition door can be designed between the dynamic and static areas to separate the dynamic and static areas. The public toilet is located at the junction of the dynamic and static areas for the convenience of all parties and to improve the privacy of the room. Reduce mutual interference and the impact of electromagnetic radiation on the bedroom, create a comfortable and healthy living environment, and reflect humanistic care.

[0035] All the indoor spaces 5 in this plan are carefully laid out, and the spatial positions of the kitchen and bathroom are reasonably designed. The kitchen is designed to be next to the entrance door outside the indoor space 5. In order to make the overall layout more reasonable, the design allows the public bathroom to occupy a small part of the dining room space, which solves the contradiction in spatial arrangement, makes the structure more compact and regular, avoids space waste, and frees up effective space to support the overall layout, expands the bedroom and living room area, and each unit has regular sides and a reasonable layout, organically combining beauty and practicality. The investment remains unchanged, and the utilization rate and comfort are significantly improved.

[0036] In order to improve the ventilation effect, some existing architectural elements (such as bay windows 2 and side balconies 4) are utilized, the width of the bay windows 2 is increased to 80 cm, and side (southward) movable window sashes are set, and the side balcony 4 is designed to be semi-enclosed. Southward movable window sashes are also set to adjust the direction of airflow. They are designed in part of the exterior wall to form an uneven scene. The movable sashes are equivalent to guide plates. The wind in nature appears in the form of gusts. When the air flows through a narrow place, the speed increases and the pressure decreases. The surrounding air follows up and replenishes in time to form an airflow. Such a setting can improve the ventilation efficiency of the indoor space 5.

[0037] In addition, each household is given a sky garden and entrance corridor (fire safety) with a total area of ​​4.8 square meters, allowing people to integrate more harmoniously with nature.

[0038] The public auxiliary unit 6 includes an elevator vestibule and a public activity center. The elevator vestibule is located between the four indoor spaces 5, which are connected to the elevator vestibule. The public activity center is located behind the elevator vestibule. The public activity center is located between the two indoor spaces 5 of the latter residential unit. A ventilation and lighting alley 1 is formed between the indoor space 5 of the latter residential unit and the public activity room. A 3-square-meter grid storage room is designed for each household next to the walking staircase to solve the problem of small modern residential areas and nowhere to store temporary storage. At the same time, a 35-square-meter activity center is designed on each floor, which can not only exercise but also enhance the communication, communication, unity and coordination of modern building neighborhood relations.

[0039] The building density of the high-rise residential building in this embodiment is as follows:

[0040] Front unit: 12.4 meters long, 8.3 meters wide, excluding kitchen, construction area 138.5 square meters;

[0041] Rear unit: 11.3 meters long, 8.3 meters wide, excluding kitchen, construction area 127 square meters;

[0042] Take a medium-sized apartment with a floor area of ​​531 square meters per floor as an example;

[0043] The floor space of this apartment is 31 meters long and 24.9 meters wide. With the distance between buildings being 35 meters and the spacing between buildings being 13 meters, the total floor space of this apartment is 2,636 square meters.

[0044] Building density = building area / land area = 531 / 2636 = 20.1%.

[0045] The floor area ratio of the high-rise residential building is as follows: floor area ratio = total building area / total land area = 531*18 / 2636 = 3.63.

[0046] According to the above calculation method, the plot ratio of a land area of ​​about 100 mu is calculated as follows:

[0047] The designed land is 59.9×5=299.5 meters long and 44x5=220 meters wide, with a total land area of ​​65890 square meters (about 99 acres). Based on 18 floors, the building area = 531×18×25 (buildings) = 238950㎡.

[0048] Floor area ratio = total building area / total land area = 238950 ÷ 65890 = 3.63. (Basically the same as the calculation of floor area ratio for a single building).

[0049] According to the requirements of residential building design specifications, when the overall design has better ventilation and lighting than the traditional model, the layout is optimized, the space utilization rate is improved, the effective building area is increased, the volume ratio is increased reasonably and legally, land resources are saved, and the contradiction between ventilation and lighting and land utilization rate is better resolved. According to the residential building capacity control index, and then according to the size of the land area, the height of the building, and the different lighting conditions, the building density and volume ratio of the specific project are determined after comprehensive evaluation. General reference value: if the land area is less than 30,000 square meters, the volume ratio of 10 to 18 floors is 2.6, and the building density is 25% or less; the land area is (30,000 to 80,000 square meters, (10 to 18 floors) The reference value of the volume ratio is 2.4, and the building density is 23% or less. This plan designs the indoor space 5 layout without affecting the overall ventilation and lighting and public activity space, thereby increasing the effective building area and further improving the volume ratio. The overall design increases the volume ratio by more than 50% compared with the traditional ordinary design.

[0050] In order to more intuitively reflect the rationality and practicality of the design of the indoor space 5 of this embodiment, this design scheme is further explained in conjunction with a specific case.

[0051] Case 1 (medium-sized apartment): The front unit is 12.3 meters long and 8.5 meters wide (kitchen is not included), with an area of ​​12.3×8.5+12.5 (balcony 4, kitchen, etc.) = 117㎡. The building area of ​​this apartment is 117×1.2 (20% of the public area) = 140.5㎡. The back unit is 11.4 meters long and 8.2 meters wide, with an area of ​​11.4×8.2+11.5 (kitchen, balcony 4, etc.) = 105㎡. The building area is 105x1.2 = 126㎡.

[0052] Case 2 (large apartment): Front row unit: 12.8 meters long, 8.7 meters wide, area: 12.8×8.7+13.5 (kitchen, balcony 4, etc.) = 124.9㎡, construction area: 124.9×1.2 = 150㎡. Back row unit: 11.7 meters long, 8.4 meters wide, area: 11.7x8.4+12.5 = 110.8㎡, construction area = 110.8×1.2 = 133㎡.

[0053] Case 3 (small apartment): Front unit type: 12.2 meters long, 8.3 meters wide, area: 12.2×8.3+11.7 (kitchen, balcony 4, etc.) = 113㎡, construction area = 113×1.2 = 135.5㎡, back unit type: 11 meters long, 8.2 meters wide, area: 11×8.2+11.5 (kitchen, balcony 4, etc.) = 101.7㎡, construction area 101.7x1.2 = 122㎡ (living room width 3.9 meters).

[0054] Case 4: Front unit layout: 12.4 meters long, 8.6 meters wide, area: 12.4×8.6+12.5 (kitchen, balcony 4, etc.) = 119㎡, building area = 119x1.2 = 143㎡, back unit layout: 11.4 meters long, 8.3 meters wide, area: 11.4×8.3+12.5 (kitchen, balcony 4, etc.) = 107㎡, building area = 107x1.2 = 128.5㎡.

[0055] Case 5 (medium and large apartments): Front unit type: 12.7 meters long, 8.4 meters wide, area: 12.7×8.4+13 (kitchen, 4 balconies, etc.) = 119.7㎡, construction area: 119.7x1.2=143.6㎡, back unit type: 11.6 meters long, 8.3 meters wide, area: 11.6×8.3+12 (kitchen, 4 balconies, etc.) = 108.3㎡, construction area 108.3x1.2=130㎡.

[0056] Case 6 (medium and large apartments): Front unit type: 12.5 meters long, 8.4 meters wide, area: 12.5×8.4+12.5 (kitchen, balcony 4, etc.) = 118㎡, construction area: 118×1.2=141.6㎡, back unit type: 11.4 meters long, 8.4 meters wide, area: 11.4×8.4+12.5 (kitchen, balcony 4, etc.) = 108.3㎡, construction area 108.3x1.2=130㎡.

[0057] From the above data, we can know that the innovative effect of the present invention is compared with the existing traditional design techniques as follows: the density level of the traditional model is medium, and the density level of the present embodiment is low; the floor area ratio of the traditional model is low, and the floor area ratio of the present embodiment is relatively high; the lighting level of the traditional model is poor, and the lighting level of the present embodiment is good; the ventilation effect of the traditional model is poor, and the ventilation effect of the present embodiment is good; the common area of ​​the traditional model is high, and the common area of ​​the present embodiment is average; the privacy of the traditional model is poor, and the privacy of the present embodiment is good; the personalized design of the traditional model is low, and the personalized design of the present embodiment is high; the comfort of the traditional model is average, and the comfort of the present embodiment is high; the practicality of the traditional model is poor, and the practicality of the present embodiment is good; the rationality of the traditional model is average, and the rationality of the present embodiment is high; the added value of the traditional model is low, and the added value of the present embodiment is high; the cost performance of the traditional model is low, and the cost performance of the present embodiment is high.

[0058] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrating the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A high-rise residential building with good ventilation and lighting and saving land, characterized by: Each floor of the high-rise residential building is composed of two residential units and a public auxiliary unit. The two residential units are spaced apart from each other. Each residential unit has two indoor spaces. The four indoor spaces are arranged in a herringbone shape. The distance between the two residential units is 4.6-5 meters. The indoor spaces of the two households in the first residential unit are combined, and the indoor spaces of the two households in the second residential unit are spaced apart. The width of the second residential unit is 2.8-3.5 meters longer than that of the first residential unit. The public ancillary unit includes an elevator vestibule and a public activity room. The elevator vestibule is located between the indoor spaces of four households. The four indoor spaces are connected to the elevator vestibule. The public activity room is located in front of the elevator vestibule. The public activity room is located between the indoor spaces of two households in the latter residential unit. A ventilation and lighting alley is formed between the indoor space of the latter residential unit and the public activity room.

2. A high-rise residential building with good ventilation and lighting and saving land according to claim 1, characterized in that: The indoor spaces of the two households in the aforementioned residential unit have the same structure and are arranged in a mirror image. The aforementioned indoor space consists of four bedrooms, two bathrooms, a dining room, a living room and a kitchen. The four bedrooms are arranged in a matrix, and a corridor is formed between the four bedrooms. The living room, dining room and kitchen are arranged in sequence from front to back. The four bedrooms are located on the left side of the dining room, living room and kitchen. One of the bathrooms is located between the bedrooms in the first quadrant and the bedrooms in the second quadrant, and the other bathroom is located between the dining room and the bedroom. The two bedrooms near the side are provided with bay windows, the bay window of the bedroom located on the front side faces forward, and the bay window of the bedroom located on the back side faces sideways. The front side of the living room and the adjacent bedroom is provided with a balcony. The indoor spaces of the two households in the latter residential unit have the same structure and are arranged in a mirror image. The latter indoor space consists of three bedrooms, a study, two bathrooms, a living room, a dining room and a kitchen. The three bedrooms and the study are arranged in a matrix. The living room, the dining room and the kitchen are arranged in sequence from left to right and are located behind the bedrooms. One bathroom of the latter indoor space is located between the bedroom in the third quadrant and the study in the fourth quadrant. The other bathroom of the latter indoor space is located between the bedroom and the dining room. The two bedrooms on the outward side of the latter indoor space are respectively formed with bay windows and balconies; the living room of the latter indoor space is formed with a balcony on the front side; The bedroom, bathroom, living room and study in the indoor space are provided with at least one bay window, balcony or ventilation window.

3. A high-rise residential building with good ventilation and lighting and saving land according to claim 2, characterized in that: The width of the bay window is 80 cm, and movable window sashes are arranged on the sides of the bay window.

4. A high-rise residential building with good ventilation and lighting and saving land according to claim 2, characterized in that: The balcony located at the side is semi-enclosed, and movable window sashes are arranged on the side of the balcony located at the side.

5. A high-rise residential building with good ventilation and lighting and saving land according to claim 1, characterized in that: The building density and indoor land space of the high-rise residential buildings are as follows: Front unit: 12.0-13.1 meters long, 8.0-8.8 meters wide, excluding kitchen, building area 129-156 square meters; Rear unit: 10.9-11.9 meters long, 8.0-8.9 meters wide, excluding kitchen, construction area 118-142.6 square meters; Take the example of a medium-sized apartment with a floor area of ​​531 square meters per floor: The floor space of this apartment is 31 meters long and 24.9 meters wide. With the distance between buildings being 35 meters and the spacing between buildings being 13 meters, the total floor space of this apartment is 2,636 square meters. Building density = building area / land area = 531 / 2636 = 20.1%.

6. A high-rise residential building with good ventilation and lighting and saving land according to claim 1, characterized in that: The floor area ratio of the high-rise residential building is as follows: floor area ratio = total building area / total land area = 531*18 / 2636 = 3.

63.

7. A high-rise residential building with good ventilation and lighting and saving land according to claim 1, characterized in that: The fitness and activity center is located on the right side of the walking stairwell, with four grid-type storage rooms and the activity center. Three of the grid-type storage rooms are located on the inner side of the walking stairwell, and the other attic-type storage room is located on the front side of the walking stairwell. The activity center is located on the right side of the three grid-type storage rooms.

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