Transactions of the Architectural Institute of Japan

[title in Japanese]

Article type: Cover
1969 Volume 160 Pages Cover1-
Published: June 30, 1969
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.160.0_Cover1

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[title in Japanese]

Article type: Cover
1969 Volume 160 Pages Cover2-
Published: June 30, 1969
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.160.0_Cover2

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[title in Japanese]

Article type: Appendix
1969 Volume 160 Pages i-
Published: June 30, 1969
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.160.0_i_1

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[title in Japanese]

Article type: Index
1969 Volume 160 Pages Toc1-
Published: June 30, 1969
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.160.0_Toc1

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[title in Japanese]

Article type: Appendix
1969 Volume 160 Pages App1-
Published: June 30, 1969
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.160.0_App1

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[title in Japanese]

[in Japanese], [in Japanese]

Article type: Article
1969 Volume 160 Pages i-
Published: June 30, 1969
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.160.0_i_2

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EXPERIMEMTAL STUDIES ON VACCUMED CONCRETE

REIICHIRO FUKUDA

Article type: Article
1969 Volume 160 Pages 1-5,71
Published: June 30, 1969
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.160.0_1

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Experiments have been performed to investigated vaccum effect. In vaccum pacage aggregates and cement particles can be absorbed with water ideally. Generally some of cement particles contact with air or each other. This phenomena is undesirable as for as compressive strength of concrete. Then experimentes were carried out to improve absorption between water to aggregate and cement particle. First experiment was carried out on bond strength between cement paste and aggregates. Relationship between bond strength and age was shown in Fig. 2. Bond strength in vaccum was not greater than in air. Tested surface in vaccum was observed very clear and in air it was recognized void. (See photograph) Second experiment was carried out on compresive strength of vaccumed concrete. It was vaccumed after cement and and aggregates were cast in the place and three minutes later water was poured in it. Then concrete was mixed and cast in test piece. Consequently four percentage of water was reduced from concrete and water……cement ratio was improved four percentage. Specific gravity of vaccumed concrete was greater than in the air of concrete. Compresive strength of vaccumed concrete is greater 10〜20 percentage than in the air of concrete. Relationship between compresive strength and age is shown Fig. 10. Coefficient of contribution of water……cement and cement volume occupied neary 100 percentage. Vaccumed procedure and air content are not significant.

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ELASTIC ANALYSIS OF SHEAR WALLS LOADED ANTIMETRICALLY WITH REGARD TO THEIR LONGITUDINAL AND TRANSVERSAL CENTER LINES PART I : Airy's Stress Function, Stresses, Displacements, Etc.

MASAHIDE TOMII, IKUO TOKUHIRO

Article type: Article
1969 Volume 160 Pages 7-16,71
Published: June 30, 1969
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.160.0_7

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EXPERIMENTAL STUDY OF THE WIND PRESSURES ON STRUCTURES IN NATURAL WIND : Part.5. Some Considerations and Conclusions

MASAO TACHIKAWA

Article type: Article
1969 Volume 160 Pages 17-24,71
Published: June 30, 1969
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.160.0_17

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EVALUATION OF EARTHQUAKE INTENSITY BASED ON DAMAGE TO STRUCTURES

SUMIO NAGAHASHI, HIROYOSHI KOBAYASHI

Article type: Article
1969 Volume 160 Pages 25-34,72
Published: June 30, 1969
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.160.0_25

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Authors propose in this paper ascale for evaluating intensity of earthquake motions from the point of view of antiseismic design in which structure is permitted plastic deformation, and from the point of view of earthquake damage to structures. Usually, as this kind of scale, maxmimum magnitude of acceleratien and respones spectrum are used, but there were several cases in which little damage to structures are inconsistent with large values of maximum magnitude of acceleration and response spectrum. For example, maximum magnitude of acceleration of the earthquake motions recorded at Kushiro in 1962 is 513 gal, and its response spectrum shows remarkable peak at T=0.33 second (Fig.1), that is, 2.2g for 5 percent damping and 4.8g for 1 percent damping. But little structures suffered damage. Then they propose to understand these kind of phenomena by means of elasto plastic response of one mass system due to earthquake motions. About the earthquake motions at Kushiro, elastoplastic response for T=0.33 second decreases to one sixth of elastic response (Fig.7), and ductility factor is not so large (Fig.5). Elasto-plastic displacement responses expressed as same as response spectra have linear relation with T (in log scale) for T=0.1-1 second, so the value for T=1 second may be used as a scale for intensity of earthquake motions (Table 1). Elasto-plastic displacement responses are roughly constant for any ultimate strength Q_y within right range. This property mav be used for minimum required ultimate strength to allowable ductility factor of struture Eqs. (2), (3). As the values of Sa' may generally be got from elasto-plastic displacement responses of Q_y=0.3g, 0.4g. This method is good for 2-3 in ductility factor.

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THE RESPONSE ANALYSIS FOR ELASTO-PLASTIC STEEL SPACE STRUCTURE DUE TO EARTHQUAKES

TAKASHI OHYA

Article type: Article
1969 Volume 160 Pages 35-39,72
Published: June 30, 1969
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.160.0_35

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Author calculated the response analysis on the vibration of the Elasto-plastic steel space structure due to the strong earthquake motions by using the electric digital computer, and discussed the influence of the displacements and the progression of yield members in the Elasto-plastic steel space structure. This paper is the sixth report of the series on the dynamic response analysis of the space structure for the earthquake. These results are as fallow : (1) It is shown that the maxmum displacement of the grid type due to Earthquakes is larger the one of folded, pyramidal and H. P. type. (2) In this case the yield members approach to the members of the maximum shearing force due to the dead load in the steel space structure.

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THEORY OF MULTILAYER PLATES ALLOWING FOR THE INFLUENCE OF TRANSVERSE SHEAR DEFORMATIONS

KOICHIRO HEKI, TOMOKO MIYAZAWA

Article type: Article
1969 Volume 160 Pages 41-49,72
Published: June 30, 1969
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.160.0_41

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The multilayer plates defined in this paper are made of materials obeying Hooke's iaw and Young's moduli of them vary over the thickness of the plate. A system of equations is developed for the theory of multilayer plates which takes into account the strectching, bending and shearing deformability. The manner in which the equations of the theory are obtained consists in an application of two well known variational principles (the complementary energy minimum princeple for stresses and the potential energy minimum principle for strains). The simultaneous use of different variational principles gives the upper and lower bounds of potential energy of elastic deformation of mutilayer plates.

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LIMIT ANALYSIS OF BEAM-COLUMN CONNECTIONS (III-2) : ┝ Type Connections of Wideflange Members Subjected to Strong-Axis Bending

Hisashi TANAKA, Yung Chuan LIN

Article type: Article
1969 Volume 160 Pages 51-55,73
Published: June 30, 1969
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.160.0_51

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COMPUTING DIAGRAMS FOR DIRECT DAYLIGHT FACTORS AFFECTING THE HORIZONTAL PLANE ILLUMINATED BY NON-UNIFORM SOURCE SURFACE

[in Japanese], SHUNTARO HIGA, MASAYASU UKAI, YASUO NISHI, SHUNJI OKAMO ...

Article type: Article
1969 Volume 160 Pages 57-64,73
Published: June 30, 1969
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.160.0_57

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Some formulae for computng the direct daylight factors which are attributable to source surfaces of a rectangular and a right-angled triangle shape in vertical and horizontal positions were introduced by the authors in the paper of the previous issue of this Transactions. The formulae are derived on the assumption that the brightness of source surfaces is so distributed that B(θ)=B_z(1+2sinθ)/3, where θ is the altitude of that part of the source surfaces where the brightness equals B(θ) and B_z is the brightness for θ identical with π/2. The present formulae are more complex, and therefore the calculation more tedious, than those derived on the assumption of the uniform brightness. The authors have worked out some computing diagrams for convenience of calculation. The diagrams for horizontal plane of illumination are given in this paper (Fig.1〜5). The examples of application are shown in TABLE-1 on page 57, together with the symbols used in the digrams. As an example of application, the authors have calculated the distribution of direct daylight factors on the horizontal plane illuminated by the veritical source surface of a rectangular shape. Some of the results of the calculation are given as charts. For convenience' sake they have also made another calculation of the formula to be applied in this calculation. Simplified results are given in TABLE-2 on page 64.

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SOME CONSIDERATIONS OF REGIONAL TENDENCIES ON ORNAMENTAL DETAILS OF THE SHRINES IN THE JAPANESE MIDDLE AGE : the 13th century〜the 14th century

SATOSHI MIYAZAWA

Article type: Article
1969 Volume 160 Pages 65-70,73
Published: June 30, 1969
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.160.0_65

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The buildings of the Japanese shrine develop into two courses. One of them is based on the Japanese Style from ancient times. The examples taking this course are Ise Zingu and Izumo Taisha and these shrines keep of ther initial style under no influences of the style of Buddist buildings. Taking another course the buildings of shrine have the ornamental detail of Buddist buildings. The majority of shrines in the middle age develop into the latter course. Nikko Toshogu is at the zenith of this course. The purpose of this paper is to investigate the ornamental details and its regional tedencies of the buildings of shrine. The ornamental details are employed actively in the buildings of shrine at the end of the 13th century and classified into following three types; (1) Wayo : This style is used from Nara periad in Japan. (2) Daibustuyo : These styles are introduced from China in early years of the 13th Century. (3) Zensyuyo : These styles are introduced from China in early years of the 13th Century. These apears the regional tendencies on the employment of the ornamental details after the 14th century. The shrines in Nara and Southern Kyoto have details of the Daibustu Style. In Osaka prefectures, the shrines have the details decorated gergeously. The details of the shrines in Siga prefecture are simpler and plainer than that in Osaka. The chronological tendencies after the 14th century in to be found the regional characters in the limited area.

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[title in Japanese]

Article type: Bibliography
1969 Volume 160 Pages 21-
Published: June 30, 1969
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.160.0_21

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