著者

梅本 大輔 関谷 佳子 中川 浩 上林 清香 河本 紗弥 伊香賀 俊治

出版者

日本建築学会

雑誌

日本建築学会環境系論文集 (ISSN:13480685)

巻号頁・発行日

vol.88, no.807, pp.429-438, 2023-05-01 (Released:2023-05-01)

参考文献数

38

被引用文献数

1

---

The thermal environment of a house is a factor that affects sleep quality. Thus, for maintaining good health, it is important for houses to have an appropriate thermal environment. The influence of ventilation and air conditioning on a house’s thermal environment cannot be ignored. Here, we investigated differences in ventilation and air conditioning equipment by comparing and evaluating the sleep quality of residents using individual air conditioners or central air conditioning. The results suggested that the central air conditioning group had reduced sleep latency, which might increase sleep efficiency in summer.

著者

木村 洋 長谷川 麻子 小峯 裕己 鎌田 元康

出版者

日本建築学会

雑誌

日本建築学会計画系論文集 (ISSN:13404210)

巻号頁・発行日

vol.67, no.554, pp.27-34, 2002-04-30 (Released:2017-02-04)

参考文献数

10

---

To reduce the concentration after occupancy, the mitigation techniques by ventilation or air cleaning are effective. This paper reports the concentration reduction effects of the measures such as continuous mechanical ventilation, the passive product for removing gaseous HCHO and air cleaners for pollutants from the full-scale tests in the newly constructed multi-family residential building. The results are following; 1. The mechanical ventilation was most effective. 2. The sheet-form passive products were effective in the storage, besides the particulate products scarcely affect. 3. The operation of an air cleaner had a little influence on HCHO concentration in the room.

著者

野崎 淳夫 飯倉 一雄 坊垣 和明 吉澤 晋

出版者

日本建築学会

雑誌

日本建築学会計画系論文集 (ISSN:13404210)

巻号頁・発行日

vol.67, no.557, pp.73-79, 2002-07-30 (Released:2017-02-04)

参考文献数

14

---

A lot of paints, adhesives and chemical materials which are known to emit gaseous chemical pollutants are being used in buildings. These building materials are potential sources of indoor chemical substances. Bake-out has been as one mitigation method for such elevated formaldehyde concentrations. The bake-out procedure could increase the transfer of indoor chemical substance from sources to the outdoor. The bake-out hypothesis is that this source depletion is sufficient to cause formaldehyde emission rates to be significantly less than they would have been without bake-out. So, this study was conducted 1) to establish the bake-out procedure and evaluation methods used with test pieces and an environmental chamber, 2) to determine the effectiveness of the bake-out on formaldehyde reduction, and 3) to analyze the relationship between specification of building parts and the reduction effectiveness on the sources by the bake-out. From our results, it turned out that the emission rate of formaldehyde was decreased by 6.54〜55.6% after bake-out in a temperature of 38℃ for the period of 72 hours. And, if we wish to determine the effectiveness of bake-out on the VOCs, further experiments used by chambers should be needed.

著者

梅本 大輔 関谷 佳子 中川 浩 上林 清香 伊香賀 俊治

出版者

日本建築学会

雑誌

日本建築学会環境系論文集 (ISSN:13480685)

巻号頁・発行日

vol.88, no.806, pp.325-333, 2023-04-01 (Released:2023-04-01)

参考文献数

40

被引用文献数

1

---

Indoor temperature environment and air quality affect the health of residents of houses, and thus efforts are underway to improve the insulation of houses. In this study, we conducted a questionnaire survey to investigate changes in health symptoms and quality of life after moving into a house with a central air conditioner, floor heating, and room air conditioners. The results revealed that residents of houses with central air conditioning tended to have a higher rate of improvement in health symptoms and quality of life compared with other types of air conditioning.

著者

西郷 徹也

出版者

日本建築学会

雑誌

日本建築学会計画系論文集 (ISSN:13404210)

巻号頁・発行日

vol.77, no.671, pp.111-118, 2012-01-30 (Released:2012-03-05)

参考文献数

13

被引用文献数

1 1

---

The local detached housing industry is going to shift their business model toward the sustainable society.The first part of the paper is to clarify the recent business development of the detached housing industry.1. The detached housing is going to change its product architecture from closed-integral architecture to open-modular architecture.2. The key point of this change is the evolution of the manufacturing-process. The integral procedure in product development is most important for the total efficiency of the business.The second part is the future business model of local detached housing industry.1. For certain business development in the sustainable society, DCM market approach is suitable for the local detached housing industry rather than SCM.2. The local detached housing industry is waiting for the emergence of a new core business person.

著者

一ノ瀬 雅之 井上 隆 坂本 義仁

出版者

日本建築学会

雑誌

日本建築学会環境系論文集 (ISSN:13480685)

巻号頁・発行日

vol.74, no.640, pp.729-734, 2009-06-30 (Released:2010-01-18)

参考文献数

14

被引用文献数

1 1

---

This paper presents actual performance of high-reflectivity paints by environmental exposure test. Test panels were coated with high-reflectivity or conventional paints on site or in-factory at the manufacturing stage by a newly developed heat curing paint method. Our results reveal that solar reflectivity of the panels were degraded by up to 20 percent from initial status during first year, and this degradation is chiefly due to airborne contamination. This study also demonstrates that panels coated with high-reflectivity heat curing paint with a photocatalyst finish can preserve high reflectivity and therefore thermal conditioning effects longer than the panels painted on site.

著者

篠原 昌寿 五十田 博 清水 秀丸

出版者

日本建築学会

雑誌

日本建築学会構造系論文集 (ISSN:13404202)

巻号頁・発行日

vol.81, no.729, pp.1859-1868, 2016 (Released:2016-11-30)

参考文献数

28

被引用文献数

2 2

---

1. Introduction In Japan, high performance damping buildings and houses are required to improve seismic safety and to minimize damage, because of many occurrences of severe earthquakes. On the other hand, Japanese wooden houses do not have enough shear walls to keep large and many openings and semi-rigid timber portal frame has been developed and has increased. However, semi-rigid timber frame structure is relatively soft. This paper presents seismic performance of semi-rigid timber frame structure with damper through full-size shaking table tests. We compared response deformations during moderate and severe ground motions among only frame, frame with oil damper and frame with shear wall to verify damping effect of oil damper. 2. Overview of damping wall with oil damper Damping wall system consist of a oil damper set horizontally through a ∧ shape steel member installed between two columns and below a beam of wood (hereinafter, referred to as "∧-type damping wall"). ∧-type damping wall is a system where damper deformation becomes almost the same as the story deformation. ∧-type damping wall has a high damping force compared to other damping walls that exist in the field of wooden houses nowadays in Japan. Relief force of the oil damper is 12 kN and the relief velocity is 70 mm/sec. 3. Overview of shaking table tests Planar shape of box-shaped one-story specimen is 5460mm (direction of vibration) × 3640mm (Orthogonal direction of vibration), and its height is 2835mm. Ground motion is input in one direction. There are three types of structures set in series in the direction of vibration, the outer two structures are semi-rigid timber frames and the structure at the center is ∧-type damping wall or seismic wall of plywood. The detail for each structure is described as follows. (1)Semi-rigid timber frame with oil damper. (2)Semi-rigid timber frame with seismic wall of plywood. (3)Semi-rigid timber frame only. The total weight of specimen is 87.0kN. Moment resisting joint of semi-rigid timber frame is using lagscrewbolt, metal connector and nut. Procedure of construction is embedding the lagscrewbolt into the column and beam, and setting up a metal connector, and binds with nut. Size of column is 120mm × 300mm and wood specimen is engineering wood of European red pine (E105-F300). Size of beam is 120mm × 360mm and wood specimen is engineering wood of European red pine (E105-F300). For column base anchor bolt (M14, SNR490B) with growth capacity was used. Semi-rigid timber frame is considered to have a Co=0.51 seismic performance for elastic frame analysis. Seismic walls are placed in the center of structure row and are bonded both sides of plywood (t=12, N50 nail, @150). Seismic performance of this wall is almost equivalent to ∧-type damping wall. ∧-type damping wall and Seismic wall are considered to have a Co=0.11 seismic performance. Input seismic wave are three observation waves and one artificial wave. Observation waves are "ELCENTRO 1940 NS", "TAFT 1952 EW" "JMA Kobe 1995 NS". Artificial wave is "BSL wave" whose acceleration response spectrum is provided in the Building Standard Law. Seismic waves were scaled to two levels that represents medium and extreme earthquakes. 4. Results and Conclusions of shaking table tests Maximum response deformation of " Semi-rigid timber frame only " for Taft wave(25kine) is 1 / 106rad, for BSL wave(80%) is 1 / 45rad. This is large response deformation by specific seismic wave. "Semi-rigid timber frame with oil damper" reduces the response deformation for all evaluated seismic waves and can avoid damage to the structure.

著者

渡辺 康徳 渡辺 俊行 龍 有二 赤司 泰義 川上 司

出版者

日本建築学会

雑誌

日本建築学会計画系論文集 (ISSN:13404210)

巻号頁・発行日

vol.62, no.495, pp.21-29, 1997-05-30 (Released:2017-02-02)

参考文献数

8

被引用文献数

1

---

The purpose of this study is to analyze indoor thermal environment of a highly insulated airtight house in seasonal hot-humid area. In this paper, shelter performance, indoor thermal environment, and energy consumption of a highly insulated airtight house installed with central ventilation system and ordinary houses were investigated in Kitakyushu. The major conclusions of this measurement are as follows. l)This house is excellent in heat insulating and airtightness compared with the ordinary houses. The heat loss coefficient per floor area of the house is 2.53 W/(m^2・K) and equivalent leakage area per floor area of the house is 0.94 cm^2/m^2 measured by the pressrization method. (0.56 cm^2/m^2 by the depressurization method) 2)There is a room for improvement in the indoor thermal environment on air-conditioning during the summer, because this house had no consideration for solar shading and there are some problems about the position of thermosensor for air-conditioning and the balance of the air-flow below the floor level. 3)It is efficient to use the ventilation system installed with a sensible and latent heat exchanger at a highly insulated airtight house diring both summer and winter.

著者

大野 耕太郎 山田 悟史 宗本 晋作

出版者

日本建築学会

雑誌

日本建築学会計画系論文集 (ISSN:13404210)

巻号頁・発行日

vol.87, no.798, pp.1602-1611, 2022-08-01 (Released:2022-08-01)

参考文献数

17

---

This study aimed to estimate human willingness to visit cityscape images via artificial intelligence (AI) using multimodal deep learning. In this study, gaze information was acquired through subject experiments using a measurement device. We added gaze information when humans felt motivated to visit the cityscape image, and confirmed whether the estimation accuracy of AI would improve. We also created an AI model that generated gaze-view images, and used it for multimodal deep learning. We used pix2pix to generate the images. Finally, we verified the accuracy of the proposed multimodal deep learning approach, when the generated pseudo-gaze image was attached.

著者

坂田 弘安 山崎 義弘 笠井 和彦

出版者

日本建築学会

雑誌

日本建築学会構造系論文集 (ISSN:13404202)

巻号頁・発行日

vol.79, no.695, pp.103-112, 2014-01-30 (Released:2014-07-10)

参考文献数

27

被引用文献数

3 3

---

In order to mitigate seismic damage of timber houses, application of passive control devises is demanded. The authors have developed high performance shear walls with various types of dampers, which are called “energy dissipation walls”. For the future, new design method has to be proposed to generalize passively controlled timber structures. In this paper, a method to evaluate allowable strength of shear wall is proposed. Advantage of passively controlled structure is to reduce maximum deformation, and energy dissipation walls are added to a structure so that maximum deformation angle of the structure subjected to level2 earthquake is less than target deformation. Accuracy of the method is demonstrated through a lot of non linear time history analyses.

著者

竹内 晧

出版者

日本建築学会

雑誌

日本建築学会計画系論文集 (ISSN:13404210)

巻号頁・発行日

vol.71, no.606, pp.191-198, 2006-08-30 (Released:2017-02-17)

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In Finland many wooden churches were built in the 17^<th> and 18^<th> centuries. They are all comer-timbered buildings. The buildings, which I am interested in, have been built in the block-pillar style. Professor N. E. Wickwerg wrote in his book that the block-pillar style is very valuable from the architectural and artistic point of view. According to Wickberg, block-pillar churches were built only in the Bothnian area, mainly on the west coast of Finland. The corner-timbered building style was suitable for a normal house, but it was not originally suitable for the church with a large interior space. The block-pillar style solved this problem with a highly developed technique. It was constructed by block-pillars connected to beams and also A-shaped roof trusses. With this construction technique, the block-pillar style made long walls and high wooden vaults possible. I think that this technique was epoch-making advancement in the history of the Finnish wooden churches.

著者

平山 育男 梅嶋 修

出版者

日本建築学会

雑誌

日本建築学会計画系論文集 (ISSN:13404210)

巻号頁・発行日

vol.88, no.807, pp.1787-1793, 2023-05-01 (Released:2023-05-01)

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This article examines examples and background of the use of newsprint as materials for building since the mid-Meiji period. The following points become clear. Newspaper was widely used as protective paper for columns, underlayment for sliding doors and ceilings, and wallpaper after the middle of the Meiji period. The use as wallpaper was mainly in Manchuria and other regions.Newspaper was used for the underlining of sliding doors, replacing antique paper. In architectural research, finding newspaper as a building material provides a clue to the date of construction.

著者

平山 育男

出版者

日本建築学会

雑誌

日本建築学会計画系論文集 (ISSN:13404210)

巻号頁・発行日

vol.88, no.808, pp.1982-1988, 2023-06-01 (Released:2023-06-01)

参考文献数

3

---

This article considered the popularization of architectural sheet glass in modern Japan. The following points become clear.There is no correlation between the price and consumption of architectural sheet glass in modern times. However, a strong negative correlation can be seen after the middle of the Taisho period. Until Meiji 20s early, the consumption of architectural sheet glass in Japan satisfied the demand for Western-style architecture. From the mid-Taisho period onwards, the price of architectural sheet glass fell, and the popularization of architectural sheet glass was promoted for ordinary houses.

著者

坂本 圭司 赤崎 弘平

出版者

日本建築学会

雑誌

日本建築学会計画系論文集 (ISSN:13404210)

巻号頁・発行日

vol.66, no.548, pp.185-192, 2001-10-30 (Released:2017-02-04)

被引用文献数

4 2

---

The first building height limitation in Chicago was enacted in 1893. This paper is to review the process in enacting the limitation, from its drafts to the enacted limitation, and Chicago's own social context that enabled lawmakers to enact such a limit. Specifically, this paper is to focus on: 1) what urban problems were arising from the boom of "skyscrapers," 2) who took part in a series of discussion in conjunction with building height controls, for what intentions they agitated the matter, and whose intentions were brought into the enacted limitation, 3) what influence the limitation caused to the city and whether the lawmakers' intentions were realized.

著者

石川 敦雄

出版者

日本建築学会

雑誌

日本建築学会環境系論文集 (ISSN:13480685)

巻号頁・発行日

vol.87, no.802, pp.797-808, 2022-12-01 (Released:2022-12-01)

参考文献数

104

---

While surrounded by a built environment, various interpersonal cognitions and behaviors such as impression formation, communication, and cooperation are regulated and executed. It has become clear through many years of environmental psychology studies that the physical environment not only surrounds but also implicitly influences interpersonal cognition and behavior. This paper reviews the literature on the effects of visual environmental factors specifically brightness, color, and depth on interpersonal cognition and behavior in a little more than 20 years, clarifying the achievements and expansion of the research area, the challenges to be overcome, and the outlooks for the future directions.

著者

稲坂 まりな 對馬 聖菜 伊藤 滉彩 田辺 新一

出版者

日本建築学会

雑誌

日本建築学会環境系論文集 (ISSN:13480685)

巻号頁・発行日

vol.87, no.792, pp.113-122, 2022-02-01 (Released:2022-02-01)

参考文献数

45

被引用文献数

1

---

To improve indoor air quality, it’s necessary to accurately control the body odor emitted by humans living under various environmental conditions and lifestyles. The purpose of this study was to obtain a better understanding of the effects of changes in physical quantities due to insufficient sleep on the emission of human bioeffluents causing body odor and the perceived air quality. The experiment involved two conditions of sleep time. Different biogenic substance concentrations and sensory evaluations of the odor in the chamber were obtained when the occupants' sleep times was different, even for the same CO2 concentration in the room.

著者

佐藤 嘉明

出版者

日本建築学会

雑誌

日本建築学会計画系論文集 (ISSN:13404210)

巻号頁・発行日

vol.80, no.718, pp.2915-2922, 2015 (Released:2015-12-25)

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The Kanagawa Prefectural Office Building was designed by the local government official engineers and completed in 1928. And this design was based on the plan which Karo Obi got the first prize of design competition held in 1926. 1 So far, this building has been often mentioned as the first Imperial Crown Style (TEIKAN-YOSHIKI) which expresses Japanese nationalism. 2 By the comparative study between Obi's application plan to the competition and the great architect Frank Lloyd Wright's works, there exist several undeniable commons. 3 Karo Obi graduated architecture course of the Nagoya Technical College in 1921, and his graduate qualifying design obviously imitated one of Wright's masterpieces, the Midway Gardens in Chicago. 4 Owing to my study about design of the Kanagawa Prefectural Office Building, composition, shape of tower roof, statue of Buddha on the tower, decorative cantilevers, and other decorations, they show a strong influence of Frank Lloyd Wright's works, especially the Midway Gardens and the Imperial Hotel. 5 As a result, the Kanagawa Prefectural Office Building never stands for any ideologies such as nationalism, but simple homage architecture for Frank Lloyd Wright.

著者

中尾 方人 村上 雅英 山口 修由 宮澤 健二

出版者

日本建築学会

雑誌

日本建築学会構造系論文集 (ISSN:13404202)

巻号頁・発行日

vol.73, no.624, pp.291-298, 2008-02-28 (Released:2008-10-31)

参考文献数

24

被引用文献数

1

---

This paper proposes the evaluation method of seismic performance of shear resisting elements in timber construction with shear walls. Proposed new evaluation method uses two parameters of horizontal stiffness and potential energy of the shear walls. These two design values provide horizontal damage limit and safety limit strengths of stories that have equal quality to those by the summation of load-deformation curves of the shear walls. These strengths by this method have less variety than those by existing simple evaluation method. This method also provides Ds values of stories that consist of different type of shear walls. Ds values of the stories have not been provided by the existing simple evaluation method. Precise safety limit strengths and Ds-values of the stories realize to apply horizontal load-carrying capacity design method for the structures with different type of shear walls. This evaluation method would be possible to apply for other structures than the timber construction as a simplified method.

著者

平山 育男

出版者

日本建築学会

雑誌

日本建築学会計画系論文集 (ISSN:13404210)

巻号頁・発行日

vol.88, no.811, pp.2589-2594, 2023-09-01 (Released:2023-09-01)

参考文献数

3

---

This article examines the estimation of nails in building specifications and estimates in the official records of the Dajokan in the early Meiji period. The following points become clear.Nail estimates changed from a per nail estimate at an early stage to a coefficient, and then to a lump sum nail cost, an estimate included in the carpenter's manpower cost. This dizzying change in nail estimates was due to the introduction of new construction techniques and the spread of low-cost Western nails.

著者

中楚 洋介 立山 耕平 山田 浩之 川口 健一

出版者

日本建築学会

雑誌

日本建築学会構造系論文集 (ISSN:13404202)

巻号頁・発行日

vol.84, no.766, pp.1525-1532, 2019 (Released:2019-12-30)

参考文献数

14

被引用文献数

1

---

Finishing materials installed at the building surface closest to the living space of people often fall down and harm the life, body or property. Ceiling collapse especially occurs by the various reasons, e.g. the rain leaking, dew condensation, wind, traffic vibration, on a daily basis. In addition, the ceiling collapse tends to occur in the region where the seismic intensity is over five lower during earthquakes. The authors propose the quantitative evaluation method to assess the degree of risk of the ceiling collapse by comparing the impact force and the proper human tolerance. So far, we dropped the various ceilings having commercial size of 910 mm square from one to twenty meters high using the guide wires to hit to the dummy head remaining horizontal and measured the impact force with the load cell installed underneath of the dummy head. However, the experimental conditions are constrained. Therefore, the examination regarding the efficiency of ceiling size and impact angle is insufficient. To do the parametric study by the numerical analysis, the material properties of the finishing material in a wide range of strain rates are needed. However, few reports are available on the material properties of the finishing materials. In this study, a series of compressive tests, i.e. quasi-static tests, dynamic tests and impact tests by split Hopkinson pressure bar method, at various strain rate from 10-5 to 103 s-1 were conducted to examine the strain rate effect on the compressive property of the representative finishing materials: gypsum boards, calcium silicate boards and rock wool sound absorbing boards. The results obtained from this study are following: 1) The X-ray CT images show the internal structure of the finishing materials. The porosity of the gypsum boards is about 25%, and it was also slightly observed in the rock wool sound absorbing boards. On the contrary, it was found that the calcium silicate boards were the solid material with no void. 2) It was revealed that all materials used in this study have the strain rate dependence of the compressive strength at the strain rate from 10-4 to 103 s-1. In addition, it was found that the strength drastically rose at the strain rate of about 102 s-1, although it is not confirmed that the strain rate dependence is attributed to the material itself or its foam, i.e. open cell structure. 3) The constants for Cowper-Symonds constitutive equation (dynamic constants) of the representative finishing materials were identified by least-squares method based on the compressive test results. Due to this, it can be expected to improve simulation accuracy in the future.