Transactions of the Architectural Institute of Japan
Online ISSN : 2433-0027
Print ISSN : 0387-1185
ISSN-L : 0387-1185
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Volume 164
Displaying 1-14 of 14 articles from this issue
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  • [title in Japanese]
    Article type: Cover
    1969Volume 164 Pages Cover1-
    Published: October 30, 1969
    Released on J-STAGE: August 22, 2017
    DOIhttps://doi.org/10.3130/aijsaxx.164.0_Cover1
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  • [title in Japanese]
    Article type: Cover
    1969Volume 164 Pages Cover2-
    Published: October 30, 1969
    Released on J-STAGE: August 22, 2017
    DOIhttps://doi.org/10.3130/aijsaxx.164.0_Cover2
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  • [title in Japanese]
    Article type: Index
    1969Volume 164 Pages Toc1-
    Published: October 30, 1969
    Released on J-STAGE: August 22, 2017
    DOIhttps://doi.org/10.3130/aijsaxx.164.0_Toc1
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  • [title in Japanese]
    Article type: Appendix
    1969Volume 164 Pages App1-
    Published: October 30, 1969
    Released on J-STAGE: August 22, 2017
    DOIhttps://doi.org/10.3130/aijsaxx.164.0_App1
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  • EXPERIMENTAL STUDIES ON DIRECT ELECTRIC CURING (PART II)
    REIICHIRO FUKUDA
    Article type: Article
    1969Volume 164 Pages 1-6
    Published: October 30, 1969
    Released on J-STAGE: August 22, 2017
    DOIhttps://doi.org/10.3130/aijsaxx.164.0_1
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    In the present paper experimental studes on driect electric curing is reported continuously in part I of this paper. Experimental studies was carried out with experimentatic programing L_18 (2^1+3^7) type on the subject of the reasonable specification about extractation of water and its the necessary time from concrete, temperature of concrete, and economy on a cut of electric power consumption. Reasonable specification on electric curing of concrete was decided by result of each work. Experimental primary factor are kind of aggregates (natural aggregate, natural light weight aggregate artificial light weight aggregate), kind of cements (portland cement, silica cement, portland blast furnace cement), activity agent (vinsol, pozzolis), sand aggregate ratio (35, 40, 45), volume of cement (230, 250, 270kg/m^3), volume of water (150, 170, 190l/m^3), and electric current (1A, 2A, 3A). Result of work, effect of current have the most favorable influence on it. Resonable specification on electric curing of concrete is such that; concrete is produced by portland blast furnace cement and its proportion is 210〜230kg/m^3. Proportion of water is 190l/m^3 and of sand aggregate ratio is 35〜45 percentage. Electric current is 1A (0.1 A/cm, 0.025 A/cm^2). Ion is educed from cathode plate by direct electric current. Volume of educe is calibrated by Faradey's Law. 6g of lead per 1g equivalence is educe. Chemical constituent of cohesion is shown table 4.
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  • THEORETICAL AND EXPERIMENTAL STUDY ON THE BEARING STRENGTH OF STEEL PLATES
    BEN KATO, HIROFUMI AOKI
    Article type: Article
    1969Volume 164 Pages 7-12
    Published: October 30, 1969
    Released on J-STAGE: August 22, 2017
    DOIhttps://doi.org/10.3130/aijsaxx.164.0_7
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    In this paper, bearing strength of the steel plates in single bolted connection was studied to clear mainly the effects of following factors; (1) edge distances of the plate from the centre of circular hole. (2) yield ratio of the material. Theoretical results were obtained by finite element method in elasticplastic-strain hardening range, and variations of yield ratio were assumed to be 0.5, 0.7 and 0.9. Theoretical values obtained were checked by the tests, in which grade of steel were adopted SS 41, SM 50 and SM 50 Y. The important results obtained from this study are as follows, (1) When the nominal stress of bearing (P/Dt, P : load, D : diameter of the bolt, t : thickness of the plate) is over 1.20 times as high as yield point, the specimen generally yields. (2) If ultimate strength of bearing is defined as the strength which corresponds to the equivalent plastic strain at any part of the plate becomes 0.2, it is 2.06 times as high as yield stress in the case when the yield ratio of the material is 0.7.
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  • BUCKLING OF THE PLANE AND SPACE STRUCTURE
    TAKESHI OHYA
    Article type: Article
    1969Volume 164 Pages 13-17
    Published: October 30, 1969
    Released on J-STAGE: August 22, 2017
    DOIhttps://doi.org/10.3130/aijsaxx.164.0_13
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    This paper describes studies on the buckling of the plane and space structure by the displacement method, and discussed the buckling loads of the plane and space structure due to electric digital computer. In this analysis, the following assumptions are employed : (1) The distribuled loads of the member are concentrated at the joint. (2) The members are assumed as straight, constnt, cross section on each dividcd part. (3) The shearing deformation of the members are neglected. (4) Beigungsverdrehung and local buckling of the members are neglected. (5) The members are able to be resisted to bending moment, twisting moment, axial force and shearing force. These results are as follow : (1) The buckling load of the gabled roof frame approches to one of the arched roof frame. Because the span and size of the column in the gabled roof frame are same to the one of the arched roof frame. (2) In the space structure, the buckling load of the H.P. type is larger than one of the pyramidal type at the same size. (3) In the rigid truss, the buckling load by the displacement method approaches to the result of the experiment.
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  • LIMIT ANALYSIS OF BEAM-COLUMN CONNECTIONS (VI) : Cruciform Connections of Wideflange Members Subjected to Weak-Axis Bending and Axial Force
    Hisashi TANAKA, Akio FUKUSHIMA
    Article type: Article
    1969Volume 164 Pages 19-25
    Published: October 30, 1969
    Released on J-STAGE: August 22, 2017
    DOIhttps://doi.org/10.3130/aijsaxx.164.0_19
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  • STUDY ON TENSION-TYPE JOINT USING HIGH TENSILE BOLT : Part. 1. -No.1-Three Dimensional Analysis by Elastic Theory to Obtain Spring Constant of Bolted and Riveted Plate
    MORIHISA FUJIMOTO, ATSUHIDE HASHIMOTO
    Article type: Article
    1969Volume 164 Pages 27-33
    Published: October 30, 1969
    Released on J-STAGE: August 22, 2017
    DOIhttps://doi.org/10.3130/aijsaxx.164.0_27
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    The study of tension type joint sometemes involves the question of finding out the spring constant of the plate. Although this is a factor that greatly affects the strength of joint, no efficient approaches have been made so far for the solution except some attempts to determine an approximate value based on unverified hypotheses or by an reverse operation of values obtained by experiments covering the total joint area. To account for this situation is the absence of exact solution by means of which it is possible to find the range of stress distribution and elastic operation inside the bolted plates, as well as the amount of change in shape on the plate surface under pressure. This paper describes a procedure in which plates fastened with bolts were transformed into a model as shown in Fig. 1; the working of the circular load on the edge of the round hole on infinite plates with holes presented as three-dimensional axisymmetric problem in order to obtain exact solution by three-dimensional elastic theory and thus to seek the spring constant of plate mathematically. This analysis was made by obtaining a stress function by means of combinations of harmonic functions using cylindrical coordinates. Then mathemattical calculaions were made for four examples of combinations of variables of : bolt hole diameter, load area and plate thickness. Further, another calculation was made using one of these four examples through methods; finite element method of plane stress and three-dimensional axisymmetry. It has been found that the results using the three-dimensional axisymmetry of finite element method and experimental value concerning stress distribution agree very well with the theoretical value described in this paper.
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  • THE METHOD FOR ESTIMATING THE WATER TIGHTNESS OF SASH IN CONSIDERATION OF DYNAMIC PRESSURE
    HITOSHI MIYAUCHI
    Article type: Article
    1969Volume 164 Pages 35-40
    Published: October 30, 1969
    Released on J-STAGE: August 22, 2017
    DOIhttps://doi.org/10.3130/aijsaxx.164.0_35
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    With respect to static pressure, the water tightness is prescribed in the J. I. S. A-4706. However in order to determine it reasonably corresponding to the pressure of head of fluld, It should be corrected in consideration of the effect of dynamic pressure by the wind.
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  • RESEARCH ON THE WEAR OF FINISHINGS OF REINFORCED CONCRETE BUILDINGS STANDING IN THE MOUNTAIN OR SEASIDE.
    KIYOO MATSUSHITA, TADASHI EGUCHI, HIROSHI SATO, HIROSHI IIZUKA, SADATO ...
    Article type: Article
    1969Volume 164 Pages 41-49
    Published: October 30, 1969
    Released on J-STAGE: August 22, 2017
    DOIhttps://doi.org/10.3130/aijsaxx.164.0_41
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    This paper treats the wear of every parts of buildings, especially in the severe condition of nature in order to compare with general condition. It will be contributed to the fundamental data for building maintenance. In this case, 26 radio relay office buildings standing in the mountain or seaside were selected and the wear of finishings of them were surveyed by mainly outside observation. Particulaly, leaking of rain, crack, painting, etc. were observed precisely through grading (scale of gravity). The main results obtained were as follows. 1. Generally, the wear of finishings in such places are more progressive than in general places. 2. Cracks apper excessive in buildings aged more than 5 years and are accompanied with efflorescence particulaly. In columns which are shouldered with steel tower of micro antenna, cracks appeared horizontally a distance of 15-35cm. 3. As a relation with the rate of leaking of rain and ages, the one in such places are pretty progressive than in general places. But grade leaking of rain have no eviden relation with ages. 4. As the wear of painting, there are hardly change between in such places and in genneral places. But a height above the sea-level is one of the facter of wear. 5. It is necessary to practice a completion test and periodical test which is same as wear survey and to accumulate their career in order to apply their data above mentioned successfully for intended maintenance.
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  • THE STUDY OF THE RECEPTION ROOMS IN THE PROVISIONAL IMPERIAL PALACE DESIGNED BY C. DE BOINVILLE (Part 2)
    SHIGEKATSU ONOGI
    Article type: Article
    1969Volume 164 Pages 51-59
    Published: October 30, 1969
    Released on J-STAGE: August 22, 2017
    DOIhttps://doi.org/10.3130/aijsaxx.164.0_51
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    In the present paper, the plan, usage, outside view, style and interior decoration of the Reception Rooms in the provisional Imperial Palace, Akasaka, Tokyo are surveyed refering to the plans preserved in the Imperial Household Agency. This building was planned to be used for the audience and the reception to the foreign envoys and was the first Neo-Baroque style's building introduced in the Meiji era and the interior decoration in this building was designed very artistically.
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  • [title in Japanese]
    Article type: Appendix
    1969Volume 164 Pages 59-
    Published: October 30, 1969
    Released on J-STAGE: August 22, 2017
    DOIhttps://doi.org/10.3130/aijsaxx.164.0_59
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  • [title in Japanese]
    Article type: Bibliography
    1969Volume 164 Pages 61-63
    Published: October 30, 1969
    Released on J-STAGE: August 22, 2017
    DOIhttps://doi.org/10.3130/aijsaxx.164.0_61
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