Transactions of the Architectural Institute of Japan

[title in Japanese]

Article type: Cover
1972 Volume 191 Pages Cover1-
Published: January 30, 1972
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.191.0_Cover1

JOURNAL FREE ACCESS

Download PDF (54K)
[title in Japanese]

Article type: Cover
1972 Volume 191 Pages Cover2-
Published: January 30, 1972
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.191.0_Cover2

JOURNAL FREE ACCESS

Download PDF (54K)
[title in Japanese]

Article type: Index
1972 Volume 191 Pages Toc1-
Published: January 30, 1972
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.191.0_Toc1

JOURNAL FREE ACCESS

Download PDF (55K)
[title in Japanese]

Article type: Appendix
1972 Volume 191 Pages App1-
Published: January 30, 1972
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.191.0_App1

JOURNAL FREE ACCESS

Download PDF (20K)
THEORY OF THE FRAME WITH ELASTIC JOINTS (3) : Analysis of the Frame with Elastic Joints According to the Four Moment Method

HOKATO EGAMI

Article type: Article
1972 Volume 191 Pages 1-5,97
Published: January 30, 1972
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.191.0_1

JOURNAL FREE ACCESS

Show abstractHide abstract

In the previous paper, the author reported the theory of the Chain Construction with Elastic Joints from the result of the experimental study on the Sandwich Curtain Wall. The present paper deals with the elastic analysis of the frame with Dry Joint which is often used in prefabricated structure, by the four moment method. In this frame, each of the structural member connected to a joint rotates in proportion to the bending moment acting on the end of the members.

View full abstract

Download PDF (577K)
STUDY ON TENSION TYPE JOINTS USING HIGH TENSILE BOLTS : Part 2-2 Theoretical Analysis of Split Tee Stub Joints Fastened with High Tensile Bolts.

MORIHISA FUJIMOTO, ATSUHIDE HASHIMOTO

Article type: Article
1972 Volume 191 Pages 7-18,97
Published: January 30, 1972
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.191.0_7

JOURNAL FREE ACCESS

Download PDF (1224K)
ENVIRONMENTAL ENGINEERING STUDIES ON THE STRUCTURE OF NATURAL WIND IN URBAN AREA AND ITS EFFECTS ON BUILDINGS Report No.6 : Study on the Characteristics of Wind Pressure on the Walls of Buildings

AKIRA SATO, SIGERU GOTO, TAKASHI SEKINE, TAKESHI SEKINE, JUSEI OKA, SU ...

Article type: Article
1972 Volume 191 Pages 19-25,97-98
Published: January 30, 1972
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.191.0_19

JOURNAL FREE ACCESS

Show abstractHide abstract

Wind pressure records, taken from two pressure transducers located at various levels of 30-40m tall buildings in Tokyo, are analyzed to determine mean pressure coefficients, spectiral function, cross-correlation functions and frequency response functions. Two differential pressure transducers, made of thin metal bellows with four-arm unbonded strain-gauge bridges, are used to measure the pressure differences between each of tapping points and the atmospheric pressure detector. The atmospheric pressure detector consists of pitot-static tube, nozzle and blowers. Jet. speed from the nozzle is about 60m/s and the atmospheric pressure can be detected when natural wind speed above the roof is less than 10m/s. Observational resuts are obtained as follows, i) The coefficient of variation of fluctuating wind pressure is proportional to the turbulent intensity of wind, and windward one is larger than leeward one. ii) Power spectral density of wall pressure is larger than that of natural wind above the roof in high frequency range. iii) Cross-correlation coefficient between windward pressure and natural wind speed is large at small time lag, and so is its coherency at low frequency band. Relating to leeward pressure, cross-correlation coefficient and coherency are small at small time lag and all frequency band respectively. iv) The values of amplitude gain and out of phase between windward pressure and square of natural wind speed are about 0.03 and zero respectively.

View full abstract

Download PDF (949K)
ENVIRONMENTAL ENGINEERING STUDIES ON THE STRUCTURE OF NATURAL WIND IN URBAN AREA AND ITS EFFECTS ON BUILDINGS : Report No.7 : Convective Heat Transfer on External Surface of Building Walls Exposed to Natural Wind

AKIRA SATO, SIGERU GOTO, TAKASHI SEKINE, TAKESHI SEKINE, JUSEI OKA, SU ...

Article type: Article
1972 Volume 191 Pages 27-36,98
Published: January 30, 1972
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.191.0_27

JOURNAL FREE ACCESS

Show abstractHide abstract

Experimental results on the convection heat transfer coefficient on the outside surface of building in relation to the wind speed and direction are described. The twin heat flow panels as shown in Fig. 2.2-2.4 specifically designed for this study were mounted side by side on the outside wall of the test building. This principle eliminates the radiation exchange between the surface and atmosphere and between the surface and surroundings by having the surface temperatures of two panels adjusted to be slightly different, thus the convection portion of outside film coefficient can be obtained from equation (2.6). §3 discribes the experimental results with the building the north wall of which is faced with open field. The wind speed and direction was measured at 8 meters above the roof and air flow velocity near the surface at 30cm apart from the wall surface by hot-wire anemometer. For the windward surface the air flow velocity near the surface was found to be 1/3-1/5 times the wind speed and 1/8-1/10 for the leeward surface as shown in Fig. 3.4-3.6. The relationships between wind speed and convection heat-transfer coefficient are shown in Fig. 3.9-3.13, and the relationships between air flow velocity near the surface and convection heat-transfer coefficient are shown in Fig. 3.16-3.18.

View full abstract

Download PDF (1275K)
ENVIRONMENTAL ENGINEERING STUDIES ON THE STRUCTURE OF NATURAL WIND IN URBAN AREA AND ITS EFFECTS ON BUILDINGS Report No.8 : Convective Heat Transfer on External Surface of Building Walls exposed to Natural Wind

AKIRA SATO, SIGERU GOTO, TAKASHI SEKINE, TAKESHI SEKINE, JUSEI OKA, SU ...

Article type: Article
1972 Volume 191 Pages 37-43,99
Published: January 30, 1972
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.191.0_37

JOURNAL FREE ACCESS

Show abstractHide abstract

The results of the field measurements on the convection heat-transfer on the outside surface of two buildings in the built-up area are described in comparison with the case studied in the open field as in the preceding paper. The method and instrumentation of measurements are the same as used in the previous case; the relationships among the wind speed above the roof, air flow velocity near the surface and the convection heat-transfer coefficient turned out generally the same as obtained from the preceding experiments as shown in Fig. 4.3 through 4.12. It could be inferred that the air flow velocity near the surface beconsidered as the primary factor affecting the convection heat-transfer coefficient on the outside surface of the building. Some minor different characteristics were found with regard to the building shape, the degree of indention of building surfaces and the relative surface position in the entire wall. Being uncertain in this stage, however, these effects might be represented by the turbulence intensity of the air velocity near the surface as the secondary parameter, as the convection heat-transfer coefficient seems to decrease slightly with the increase of turbulence intensity as shown in Fig. 4.13. Fig. 5.3 shows that the relationship between the convection heat-transfer coefficient and the velocity of the air near the actual surface that behaves with irregular motion would be quite different with the one obtained from the conventional wind tunnel experiments where the air flow is parallel to the surface.

View full abstract

Download PDF (818K)
ENVIRONMENTAL ENGINEERING STUDIES ON THE STRUCTURE OF NATURAL WIND IN URBAN AREA AND ITS EFFECTS ON BUILDINGS : Report No.9 Contamination Concentration near Buildings in Relation to Air Flow around Them

AKIRA SATO, SIGERU GOTO, TAKASHI SEKINE, TAKESHI SEKINE, JUSEI OKA, SU ...

Article type: Article
1972 Volume 191 Pages 45-54,99-100
Published: January 30, 1972
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.191.0_45

JOURNAL FREE ACCESS

Show abstractHide abstract

In assuming the contamination concentration near buildings, the time fluctuation to be considered is theoretically analysed, hypothetical volume method is proposed, and experimental results of measurements near buildings are described. There are two kinds of variations of contamination around buildings : time fluctuations and space distributions. Considering the outdoor contamination as one of the main sources of indoor air contamination, the possible effect of time fluctuation of outdoor concentration on those of indoor air is analysed by deriving the frequency transfer functions (2-23), (2-24) and (2-25) from which the amplitude gains are obtained and shown in the Bode diagrams (Figs. 2-2, 2-3). Since average existing time length of contamination within room is, in case of air-conditionned or naturally ventilated buildings, in the range of 1/2-1/6 hours and if the fluctuations of outdoor contamination are of less than 0.3-1.0 cycle/hour the gain will be 20log P. If the fluctuation is more than 3-10 cycle/hour. the attenuation of more than 10 would be added and the influence of fluctuation on indoor concentration would become very small. It can be concluded that average concentration for 20-30 minutes would possibly be used without excessive negligence of possible influence of outdoor concentration fluctuations. In presupposing the outdoor concentration near buildings, a new method using hypothetical volume adjoining buildings is proposed. If the hypothetical air changes to this volume can be predicted in relation with types of the hypothetical volumes and other conditions such as wind speed and direction, and source strength, approximate values of contamination concentration due to sources near buildings can be calculated using equations (3-1) and (3-2). One of main sources of contamination near buildings is traffic exhaust and it is necessary to determine the amount generated within the hypothetical volume to predict the concentration. For this purpose the traffic should be taken into account as source strength instead of simple passing rate as usually done especially when traffic conditions change by time. In determining the source strength, a photographical method to determine the number of existing cars in the block in question or the traffic density was tried and compared with other method using the number of cars passing and driving speed. Traffic density or number of existing cars looks proportional to the number of passing cars to certain extent but, if any traffic congestion occurs for some reason, the relation of these two can become quite different. It was concluded either method can be utilised. Actual measurements of carbon monooxide concentration near buildings are carried out. Samples are taken at 3-4 levels from the ground as shown in Fig. 5-1 and analysed with an infra-red CO gas analyser. Wind speeds are also measured at several points near building using heated wire anemometer with linearzer and analysed by calculating auto-correlation functions and power spectral densities. The results of our mesurements are shown in Table 1 and Figs. 5-3, 5-10. From the CO concentration profiles (Figs. 5-10, 5-11), it seems that rather uniform concentration distribution exists vertically in the hypothetical volume in the leeward and this has the common characterisity with wind speed profiles which also shows rather uniform distribution in vertical direction and random characterisity without significant frequency. Since the wind speed near building is not very significantly influenced by general wind which was indicated by N. Ito et al, the traffic density should have strong influence on the CO concentration. From the results of measurement, as shown in Fig. 5-12, it seems that the concentration is related with traffic density. The hypothetical air changes calculated are also shown in Table 1. The values ranged from 10 to 40 changes/hour. The relation of the air
(View PDF for the rest of the abstract.)

View full abstract

Download PDF (1318K)
COST STUDY OF STRUCTURAL FRAME FOR SCHOOL BUILDINGS (Part II) : Prefabricated School Buildings

AKIO MATSUMOTO

Article type: Article
1972 Volume 191 Pages 55-63,101
Published: January 30, 1972
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.191.0_55

JOURNAL FREE ACCESS

Show abstractHide abstract

A comparative study of the economy and the labor on-site of ALC (Autoclaved Lightweight Concrete) curtain wall system, HPC (Hshaped steel and precast concrete pannel) system and PC (precast concrete) pannel system, which are suitable for the prefabricated school systems, are made with brief structural calculations and cost estimates. If 4-story schools are compared, the PC pannel system is 20% more expensive in comparison to the conventional concrete construction. And the ALC curtain wall system and the HPC system are approximately twice as much as the conventional method, The unit of labor on site, however, will be less in an order the conventional method, the ALC curtain wall system, the HPC system which is most prefabricated; therefore saves 35% labor on site in comparison to the conventional method. With the change of education system which is apparant, the space and the use of classrooms will eventually change from the present standard. Rather than designing fixed classrooms whith the antiseismic wall like Type I, free open classrooms like Type II will be more adaptable to the future education. From the educational and structural points of view, it is worse push forward the application of the ALC curtain wall system and the HPC systems of Type II as the future school building structures rather than cheaper PC pannel system of Type I.

View full abstract

Download PDF (1095K)
A PROBABILISTIC ANALYSIS OF LENGTH OF STAY IN HOSPITAL

Hidehiko TANIMURA

Article type: Article
1972 Volume 191 Pages 65-76,101
Published: January 30, 1972
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.191.0_65

JOURNAL FREE ACCESS

Download PDF (984K)
A STUDY ON MAN-SPACE SYSTEM

RIYOZO NAKAMURA, HIROSHI WATANABE, HIROYUKI NAITOU, [in Japanese], [in ...

Article type: Article
1972 Volume 191 Pages 77-82,101
Published: January 30, 1972
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.191.0_77

JOURNAL FREE ACCESS

Show abstractHide abstract

We have been studying human-space systems and have already conducted surveys, analyzed our data, and made predictions. The purpose of this part of our study, the fourth, is to attempt to deal with problems of systems evaluation. The study has been conducted to identify inherent human factors affecting behavior in the space of the T Amusement Park; to establish some standard of value for these factors in our system through quantification; to thence evaluate human behavior; and finally, by feeding our findings back into the spatial plan, to make the human-space relationship a moer human as well as a more scientific one.

View full abstract

Download PDF (690K)
THE STUDY ON RETAIL LOCATION THROUGH THE CHOICE BEHAVIOR OF SHOPPING PLACES

YOSHIO KUMAGAI

Article type: Article
1972 Volume 191 Pages 83-88,102
Published: January 30, 1972
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.191.0_83

JOURNAL FREE ACCESS

Show abstractHide abstract

The object of this study is Retail Location through social scientific approach. In this study, the author is going to make chear the mechanism of choice behavior of shopping places through Marketing and Behavioral Science, analyzed the conflict among several shopping centers in time series, and planned Retail Location in the large area. In this part, the author explained the characteristic of the choice behavior of shopping centers by his study through the reference papers and the results of his own data for investigation. The study through the reference papers is divided into three parts. One is the theory of the construction of retail, another is the theory of trade area of shopping centers and the other is the theory of buying behavior. The survey through author's own data is divided into two parts. These are the patterns of users of shopping center and patterns of judgements of users.

View full abstract

Download PDF (837K)
A STUDY ON THE PROPORTIONAL SYSTEM IN JAPANESE TRADITIONAL STYLE

T. IWATATE

Article type: Article
1972 Volume 191 Pages 89-96,102
Published: January 30, 1972
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.191.0_89

JOURNAL FREE ACCESS

Show abstractHide abstract

As I have descrived in the previous paper, the ancient Architecture has a large error of dimensions. Therefor, if I have a order from this study, We can not assume this conclusion as a strict meaning. 1. At the budda halls in the Nara periods, the correlation of the each of bay towards front is almost never relation on the dimension of bay, but it is closely related to the each of bay towards the deep of halls. 2. In the correlation between bay and building Area, this meaning of the correlation exist the bay that it is the most proportional relation to increase and decrease of the buillding Area and its the bay is the middest one towers front. The bay of chancel (towards the Deep of Budd a halls=Length of Moya) seemes to the charcter of standard to the dimentional of relction. 3. The full bay of the Japanese towers seeme to become standerd at the correlation of the each of bay in the Nara periods, it seemes to decided the length of middest bay and ends with proportion to the full bay. 4. Generally speaking, the proportion of the each of bay at the tower of Horyuji temple seemes to play the standerd of the tower in the Nara periods.

View full abstract

Download PDF (1243K)

Register with J-STAGE for free!