Transactions of the Architectural Institute of Japan

[title in Japanese]

Article type: Cover
1969 Volume 158 Pages Cover1-
Published: April 30, 1969
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.158.0_Cover1

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[title in Japanese]

Article type: Cover
1969 Volume 158 Pages Cover2-
Published: April 30, 1969
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.158.0_Cover2

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[title in Japanese]

Article type: Index
1969 Volume 158 Pages Toc1-
Published: April 30, 1969
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.158.0_Toc1

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[title in Japanese]

Article type: Appendix
1969 Volume 158 Pages App1-
Published: April 30, 1969
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.158.0_App1

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EXPERIMENTAL STUDIES ON THE BOND STRENGTH AND PERSISTENCE BETWEEN THE CONCRETE AND STEEL BARS WHICH IS COATED WITH ZINC AND ALUMINUM : Outdoor Exposure Test

TADAO NISHI, YASUHIRO YAMAMOTO

Article type: Article
1969 Volume 158 Pages 1-4,71
Published: April 30, 1969
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.158.0_1

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Continuing from the former reports of the bond strength of the coated bars, this paper is intended to study the persistence of the steel bar coated with Zinc or Aluminium and embedded in the concrete. As the results of the outdoor exposure test, we find that the Zinc Coated bars have no corrosion on their surfaces in the plain concrete but they have some corrosion, white powder of ZnO in the concrete containing 2% calcum chloride. The aluminium coated bars have some corrosion in plain concrete, while corrosion of Al(OH)_3 and rust of FuO_2, but in the concrete containing calcium chloride, they have little corrosion.

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2-HR RATED FIRE PROTECTION CONSTRUCTION OF FLOOR AND BEAM ASSEMBLIES PROTECTED WITH MINERAL FIBER ACOUSTICAL CEILING

MASAAKI KAGAYAMA, [in Japanese], [in Japanese]

Article type: Article
1969 Volume 158 Pages 5-12,71
Published: April 30, 1969
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.158.0_5

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This report describes the construction and fire endurance test of floor and ceiling assemblies which achived a 2-hr fire resistance. There are many examples of fire resistance construction of Floor and Beam Protection in Japan, but greater parts of them are belong to contacting fire protection system. The method described in this report are belong to the membrance fire protection system, which consisting of steel unit reinforced concrete supported by beam protected with a nominal 15 mm thick mineral fiber acousticaltile ceiling. The object of this investigation was to establish the fire-resistance classification of the same floor and ceiling assemblies utilizing the 303 by 606 by 15 mm thick acoustical ceiling tile (Concealed Metal Suspension System) and 606 by 1, 212 by 15 mm thick acoustical lay-in tile (Exposed Metal Suspension System) by mean of the fire resistance test in accordance with the JIS A 1304 (Method of Fire Resistance Test for Structural Part of Building.) These method were authorised with 2-hr fire resistance construction F-2013 and F-2015 by the Ministry of Construction.

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STRESS ANALYSIS BY NON-EQUIDISTANT FINITE DIFFERENCE METHOD : Part 2 High Accuracy Method

KENJI SUGIHAARA

Article type: Article
1969 Volume 158 Pages 13-17,71
Published: April 30, 1969
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.158.0_13

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This method is the finite difference method based on non-equidistant mesh sides and applied to analize the stresses in plates, the plane stresses and the stress in shell etc.. As the 2nd stage of a series of research studies contemplated by the author, this paper is first deal with the theoretical aspect of the High Accuracy Method and then present some examples of theoretical analysis of a plate by the use of this method together with a brief discussion on the errors resulting from this approximation method.

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AN ANALYSIS FOR DOUBLE LAYER LATTICE PLATES : Part II. Stability of Unit Elements and Stresses of Constituent Members

KOICHIRO HEKI, TOSHITSUGU SAKA

Article type: Article
1969 Volume 158 Pages 19-23,72
Published: April 30, 1969
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.158.0_19

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In the foregoing paper (Part I.), the double layer lattice plates were treated as continua, which dealt with anisotropic plates. The method to derive all the equivalent rigidities of the lattice plates was described. In this paper, the degree of stability in the unit element of the corresponding plate has been discussed. And then, the stability of lattice plates, which were taken in the foregoing paper, has been investigated. The forces in members of the lattice plates have been determined from stress resultants and couples for the corresponding plates, by considering the shear forces only with respect to web-members. The conclusions are as follows; There are double layer lattice plates which are composed of stable or unstable elements. In case of unstable elements, it is noted that the additional eqations of equilibrium for stress resultants and couples exist besides five quations of equilibrium for a solid plate. The number of this equations coincides with that degree of instability. The lattice platees must be fixed at the boundaries not to cause the unstable deformation.

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RESIDUAL STRESS AND ELASTO-PLASTIC STABILITY OF STEEL PLATE [II]

MORIHISA FUJIMOTO, ICHIEI TSUGE, TAKESHI OKUMA

Article type: Article
1969 Volume 158 Pages 25-26,72
Published: April 30, 1969
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.158.0_25

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In this paper, the result obtained with the method which was appeared in this transaction No.149 are shown in Fig.-1〜Fig.-8. The following generall conclusion were reached. (1) Not only the magnitude but the shape of residual stress gives great effect for critical stress. (2) When the avarage strain (ε_x)_γ exceeds 2ε_y, the reisdual stress gives no effect for the critical strain ε_ch and critical width-thichness ratio b/h relationship. (3) The residual stress gives little effect for the boundary condition.

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APPROXIMATE STRESS ANALYSIS OF MULTISTORIED BUILDING FRAME IN CONSIDERATION ON AXIAL DEFORMATION OF COLUMNS BASED ON THE M. T. P. E, PRINCIPLE (Part. 2)

MINORU TOMIZAWA

Article type: Article
1969 Volume 158 Pages 27-33,72
Published: April 30, 1969
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.158.0_27

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STUDY ON COMPUTER-AIDED DESIGN

TOSHIHIKO OTA, SHYOICHI SATO

Article type: Article
1969 Volume 158 Pages 35-40,72-73
Published: April 30, 1969
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.158.0_35

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This report is concerned with the design method applying the consideration of architectural space to the practical design. In preceding papers, we reported the combinatorial analysis of planning (see the Transaction of the Architectural Institute of Japan No.74'62), then developing it in the present study, we tried to get the computer-aided design for planning pattern contains such the finite functions as the lavatory of office building. Though the two systems we programmed-the grid matrix system and the orthogonal coordinates system-have merits and demerits too, both of them are very useful to search the planning pattern if we regard it as the combination of functional space units. Generally, the design process of computer is so different from human procedure that the creative planning patterns, which the designer will never be able to find, are so easy to be discovered. Accordingly, these computer-aided design method is very effective way in the preliminary stage of design to be assumed the model of plan. The problem of architectural design is, however how to treat the space itself satisfies the functions of life. Then these method are not always useful to design every architecture, rather should be limited to the design of architecture described the inner functions clearly i. e. school or hospital building. In order to generalize these methods, there remain some problems how to make the briefs logical and to arrange them to be able to operate, or how to make the decision in a design process logical.

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TIME STUDIES ON USERS OF URBAN FACILITIES (Part 3)

KOHSEI OKADA, KATSUYUKI YOSHIDA, SHIRO KASHIHARA

Article type: Article
1969 Volume 158 Pages 41-46,73
Published: April 30, 1969
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.158.0_41

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In this paper, we report such results of time studies about theaters, auditoriums, baseball grounds, examination halls, factories as follows; 1 On the audience who arrive at theaters or halls, modes of concentration curves are between 5 and 10min. before the time when the curtains rise, and ratio of concentration in 5min., is about 15%. 2 On the spectators who arrive at baseball ground, modes of concentration curves are between 10 and 20min. befoe play ball time, and ratio of concentration in 5min., is about 13%. 3 On the persons who arrive at examination halls, modes of concentration cirves are between 25 and 35min. before biginning time of examination, and ratio of concentration in 5min. is about 15%. 4 On the persons who leave examination halls, modes of concentration curves are between 0 and 10min. after the end time of examinations, and ratio of concentration in 5min. is about 45%. 5 On the persons who leave factories, modes of concentration curves are between 20 and 25min. behind the end time of works, and ratio of concentration in 5min. is about 14%.

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LOCATION AND SIZE OF THE RADIOLOGY. Depatment : Studies in the Functions anb Design of Hospitals.

MAKOTO ITO, [in Japanese], [in Japanese]

Article type: Article
1969 Volume 158 Pages 47-51,73
Published: April 30, 1969
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.158.0_47

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This paper describes the investigation of the use of radiology department in general hospital to determine the location and size of it. The results of analysis are as follows : 1) The proportion of use between diagnostic X-ray and radiological therapy is 80/20. The relative importance of the latter is increasing year by year. 2) About 30〜40 per cent of total use is held by in-patients. As for the diagnostic X-ray use only, the proportion of in-patients is no more than 20〜30 per cent. 3) The proportion of the internal medicine is the best out of O.P.D. and the orthopedics is next. 4) The greater part of therapeutic radiology is held by in-patients. 5) In community general hospital, the number of patients using diagnostic radiology is 3〜4 a day per 100 beds and 6〜7 per 100 out-patients. Concerning the radiological therapy, the number of patients is 2.0 a day per 100 beds and 0.5 per 100 out-patients.

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STUDY ON THE SHORT-TERM FLUCTUATION OF THE BUILDING STARTS BY USE AND INDUSTRIES IN JAPAN : Mainly on the Seasonal Fluctuation

RYOICHI SHIMADA

Article type: Article
1969 Volume 158 Pages 53-60,73-74
Published: April 30, 1969
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.158.0_53

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This is the third study on the seasonal and irregular fluctuation of the building starts in Japan. By table 1, 2, 3 we can know the significance of the seasonal fluctuation pattern and the scale of seasonal and irregular factors. As each series has a trend, the value of trend at Jan. 1964 is selected for the comparison of the absolute amount of each series. For the F-test of meaningful seasonality, the F value of Table 1 is compared with F^10_120 (0.01)=2.47 (instead of F^11_168 (0.01) and the F value of Table 2 and 3 is compared with F^11_84 (0.01)=2.42 or F^11_84 (0.05)=1.91 The seasonal fluctuation patterns of building starts by major group are shown in Fig. 1-1〜Fig. 1-8. Only the significant seasonal patterns of the series in Table 2 and 3 are shown in Fig. 2-1-1〜Fig. 3-3. Series related with dwellings have high F values and each series has an unique seasonal pattern. Building for Agriculture, Forestry and Fishery and Educational Buildings also have high F values. Some of the other series have weak seasonality and some does not have at all, as shown in tables and figures. In order to know the details of the seasonal fluctuation of building starts, we must classify them into many small groups. However, small group usually has strong irregular fluctuation and this gives a difficulty for finding the meaningful seasonalyity patterns.

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THE USE OF TO-SANJO-DONO PALACE AT THE TAIKYO FESTIVAL : Part. 1

SEIROKU OTA

Article type: Article
1969 Volume 158 Pages 61-69,74
Published: April 30, 1969
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.158.0_61

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This study is how to make use of the aristcratic palace Tosanjo-dono, so-called Shindenzuknri, at Heian Period, about 1150 years ago.

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