Transactions of the Architectural Institute of Japan

[title in Japanese]

Article type: Cover
1962 Volume 71 Pages Cover1-
Published: April 30, 1962
Released on J-STAGE: August 30, 2017

DOIhttps://doi.org/10.3130/aijsaxx.71.0_Cover1

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[title in Japanese]

Article type: Cover
1962 Volume 71 Pages Cover2-
Published: April 30, 1962
Released on J-STAGE: August 30, 2017

DOIhttps://doi.org/10.3130/aijsaxx.71.0_Cover2

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[title in Japanese]

Article type: Appendix
1962 Volume 71 Pages App1-
Published: April 30, 1962
Released on J-STAGE: August 30, 2017

DOIhttps://doi.org/10.3130/aijsaxx.71.0_App1

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[title in Japanese]

Article type: Index
1962 Volume 71 Pages Toc1-
Published: April 30, 1962
Released on J-STAGE: August 30, 2017

DOIhttps://doi.org/10.3130/aijsaxx.71.0_Toc1

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1) THE ROTTING DEGREE OF WOOD IN SOUTHEN ASIA

SABURO SOSHIRODA

Article type: Article
1962 Volume 71 Pages 1-6
Published: April 30, 1962
Released on J-STAGE: August 30, 2017

DOIhttps://doi.org/10.3130/aijsaxx.71.0_1

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The test-pieces of wood in Southern Asia were treated by the hyphe of Poria Vaporaria Pers, which was artificially cultivated, during one month in 30℃, and three month in 25℃, constant temperature in an experimental tub. After that the test-piecs weretaken out and the comparative results were obtained as to their weight and strength changed by rot.

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2) EXPERIMENTAL STUDY OF THE FULL-SIZED REINFORCED CONCRETE BEAMS SUBJECTED TO THE ALTERNATE LOADING

TOSHIKAZU TAKEDA, [in Japanese]

Article type: Article
1962 Volume 71 Pages 7-12
Published: April 30, 1962
Released on J-STAGE: August 30, 2017

DOIhttps://doi.org/10.3130/aijsaxx.71.0_7

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This paper presents the results of the bending tests of full-sized reinforced concrete beams, reinforced with either of the three kinds of reinforcing bars, i.e. plain bars, high strength deformed bars and high strength cold twisted bars (pt=0.54%). Tests were carried out by alternate loading or by one-way loading (loading and unloading). The load to the simply supported beams was applied at one point or at two points. Summing up the results of this experiment, it was found that: 1) The strength of each beam is estimated by plastic theory. 2) Compared to beams with the plain bars, the yield strength and ultimate strength of the beams with high strength deformed bars increase in proportion to the ratio of the yield point of the deformed bars to that of the plain bars. 3) The ultimate strength of the beam with plain bars is ordmally estimated by their yield points. But as to the beam with coldtwisted bars, the ultimate strength is decided by the value of their tensile strength. 4) Wether the load to the beam was applied at one point or at two points, its yield moment and maximum bending moment are not affected by their loading method. 5) Whether tests were carried out by one-way loading or by alternate loading, its yield moment was almost same. But the maximu bending moment was somewhat smaller by alternate loading than by one-way loading. 6) In case of one-way loading, the load-deflection curve can be figured out by elastic-plastic theory. 7) For unloading-deflection curve, the ratio of the rigidity of the beam to theoretical elastic rigidity, according to the increasing of deflection, went down after yielding from 0.34 to 0.17.

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3) THE ULTIMATE STRENGTH OF THE FLOOR SLABS WITH GRID-BEAMS : Full Size Tests on the Panslabs (1st rept.)

YOSHIKASU KANOH

Article type: Article
1962 Volume 71 Pages 13-18
Published: April 30, 1962
Released on J-STAGE: August 30, 2017

DOIhttps://doi.org/10.3130/aijsaxx.71.0_13

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Using properly shaped metal forms, the reinforced concrete slabs with grid-beams, call 'PANSLAB' hereafter, are constructed easily. And, this grid-slab is expected much stronger and more economical as compared with the conventional floor slab. Those superiority of the structure were examined experimentally by the full-size modeltests. Panslabs, with 12.5cm×25cm section grid-beams of 1m bay and with 5cm plain concrete slab on their upper surface, were compared with 11cm thick usual slabs about their strength and rigidity. Both were made of nearly the same amount of concrete, and were designed according to the same Japanese conventional design criteria under the same design condition. To examine the effect of the slab of a panslab, pure grid-beams were also tested for comparison. Model size were 4m×4m and 4m×5m, and in each group were tested three panslabs, one usual slab and one pure grid-beams. Each edge of the testpieces was framed into a rigid beam respectively so as to make it nearly in a clamped state. Testpieces were supported on 4 balls by the 4 corners and the equal concentrated loads were applied at each joint of the cross-beams. In this report we examined about the ultimate strength of the test-pieces experimentally and theoretically. The result was as follows: 1. At the design load, both panslabs and usual slabs do not show any defect about strength, rigidity and crack development. In the conventional design method, the steel used in a panslab is much less than than in a usual slab under the same design load. 2. Panslads are much stronger than usual slabs because of the tension resistance of the plain concrete slab. From this result, a more economical design method is suggested for panslabs. For these tests, the safety factor of the design load against the yield load of the panslabs was 5〜7 and this was more than 1.4 times the value of the usual slabs. 3. The slab failure of a panslab occures suddenly in a brittle state and after the yielding the bearing load of a panslab decreases to some stable value and then the panslab preserves a plastic tenacity, so we infer that it is reasonable to choose this plastic state as a standard of effective yielding point. The effective yield load of the panslabs in these tests were 0.7〜0.8 times the yield load. Again, for the same reason we should place a proper reinforcement in the upper slab of a panslab in case an excessive tension stress concentration would take place in the slab. 4. Effect of the temperature stress and shrinkage stress in the upper slab and the shear charcteristics of a panslab are not examined in these tests.

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4) EXPERIMENTAL STUDY ON ELEMENTAL UNIT FORM OF HYPERBOLIC PARABOLOIDICAL SHELL

YASUO TANAKA

Article type: Article
1962 Volume 71 Pages 19-24
Published: April 30, 1962
Released on J-STAGE: August 30, 2017

DOIhttps://doi.org/10.3130/aijsaxx.71.0_19

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This report concerns the behaviors of Hyperbolic Paraboloidical shells researched, mainly experimentally. To begin the research from a starting point, elemtal unit forms of H.P. shells (one quadrant of a complete, H.P. surface) supported rigidly on walls were considered. Usually, practical H.P. shell forms are consisted of the combinations of the unit forms and each shell of various types show very different structural behaviours and has more complicated characteristics than that of a unit form. Experiment was undertaken with the intention of checking the reliability of the conventional theoretical analyses, poth membrane and bending, and of researching the destruction processes of H.P. shells under vertical uniform load. Four models made of reinforced mortar which have the same plan (1m×1m), the same thickness (1.1cm) and different rises (0, 30cm, 60cm and 90cm) were used. The boundaries were connected to the tops of verticaly rigid walls (2cm thick). S.R. 4 wire staain gages were used for the measurement of stresses and dial gages were used for the measurement of vertical deflections of shell surface. The results of the experiment are summarized as follows: (a) Bending moment becomes more conspicuous as shell rises become smaller and membrane stress state, can not be expected. In this cace, the stress state becomes similar to that of plate. The whole surface of Soell (II) (rise: 30cm) is under the influence of bending moment and the stress states of Shell (III) (rise: 60cm) and Shell (IV) (rise: 90cm) were almost membrane one. These tendencies of strss distributions can be seen from the results of deflection measurements too. (b) In the destruction processes for each shell, the first cracks occured along the boundaries by the effect of bending moment and next cracks appeared just inside the first one in the parallel directions. (c) The ultimate strength of H.P. shell is rather low compared to that of usual shells such as cylindrical and rotational. This is because of the fact that the change of the Shell shape is rather largeand the surface is easy to be deformed to flat or concave form around the middle part of it.

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5) STATIC AND FATIGUE STRENGTH OF WELDED T JOINT

AKIRA TSURUTA, TOMIO KIMURA

Article type: Article
1962 Volume 71 Pages 25-29
Published: April 30, 1962
Released on J-STAGE: August 30, 2017

DOIhttps://doi.org/10.3130/aijsaxx.71.0_25

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This paper is a report on the results of the static and fatigue strength tests of the Welded T Joints. Twelve different types of the weld (A to J as shown in Fig. 1) are tested in the experiments. The results of the tests are summarized as follows: 1) In the static test, all specimens of the twelve types showed sufficient strength. 2) In the fatigue test, the Fillet Weld (A and B type in Fig. 1) was broken at the lowest stress, while the K-Groove Butt Weld (H and H_2 type) was broken at the highest stress. 3) The C-type joint showed not only the sufficient strength in the static test, but also in the fatigue test, it showed almost the same strength as the K-Groove Butt Weld.

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6) A STUDY ON THE STRESS DISTRIBUTION IN THE ALL-EDGE FIXED STAIR SLABS WITHOUT BEAMS

YOSHIZO DOBASHI

Article type: Article
1962 Volume 71 Pages 30-34
Published: April 30, 1962
Released on J-STAGE: August 30, 2017

DOIhttps://doi.org/10.3130/aijsaxx.71.0_30

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In case of stair slabs with subbeams and bridgeboards, landings and flights are usually designed as rectangular plates with all edge fixed. And in case of having only subbeams, they are designed as rectangular plates with three edges fixed and one free. It is noted that stairs are often designed without both subbeams and bridgeboards. Conventional solutions are brought about by the difficulty in analyzing the actions of these slab memders. The modes of stress distributions in stair slab with subbems and bridgeboards may be same as those in slabs with a slit and with a rectangular hole. In both cases flights should be treated as having two different rigidities in longitudinal and transversal directions. Approaches from this viewpoint seem not to have been made except by Dr. Yokoo who presented a solution by the method of difference for such a type of anisotropic flights with three edges fixed and one free and a type composed of anisotropic flights and isotropic landings with the inflexible beam between and witn three edges fixed and one free in all. The present paper presents solutions for a few cases of stair slair slab having only bridgeboards. The solution are obtained from simultane ous systems of difference equations concerning isotrpic (landing) parts and anisotropic (flights) parts and including the equations at the points in question relative to both these parts. The results of the experiment help those equations to be set up on the assumption that a stair slab be approximately treated as a holizontal plane body which is simply supported at the end of its slit instead of as a system of holizontal and sloping members.

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7) PRACTICAL MODIFICATION OF BEARING-CAPACITY FACTORS IN TERZAGHIS FORMULA

Yorihiko OSAKI

Article type: Article
1962 Volume 71 Pages 35-40
Published: April 30, 1962
Released on J-STAGE: August 30, 2017

DOIhttps://doi.org/10.3130/aijsaxx.71.0_35

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8) THE PLANNING OF LONG-STAY MEDICAL FACILITIES : Mainly on the length of stay of T.B. Sanatorium

YASUMI YOSHITAKE

Article type: Article
1962 Volume 71 Pages 41-46
Published: April 30, 1962
Released on J-STAGE: August 30, 2017

DOIhttps://doi.org/10.3130/aijsaxx.71.0_41

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It is significant to consider the analysis of the ^*Momentary Length of Stay in the planning of such long-stay medical facilities as Mental Hospital and Tuberculosis Sansatorium. Meanwhile there is more important problem on the ratio of circulation of beds than on the rate of bed occupancy in the society under social security. I found that the diagram of frequency distribution of Momentary Length of Stay of Tuberculosis putients consists of two exponential functions for the short-term and long-term patients of which each average length of stay is 1 or 5 years. Considering the conclusion mentioned sbove, I have studied the relation among the functional planning of wards, the ratio of circulation of beds and the apportionment of area in each department in the two sanatoriums which are planned to be reconverted into chest hospitals. In this study, I point out that the scales of nursing department and service department are proportional to the numbers of beds. On the contrary the scales of diagnostic facility and out-patients department are proportional to the number of new abmittance, that is (the ratio of circulation of beds)×(the number of beds). ^*The Momentary Length of Stay of a patient is difined here by the days which he has been staying for until inquire day from his entering, including both inquire and entering days.

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9) THE ANNUAL UTILIZATION BY THE INFANTS AND CHILDREN IN THE OUTDOOR PLAY AREA OF R.C. FLAT HOUSING : Connected with the rationalization of "the arrangement plan of buildings" in the flat housing

HIROKUNI TANIGUCHI

Article type: Article
1962 Volume 71 Pages 47-52
Published: April 30, 1962
Released on J-STAGE: August 30, 2017

DOIhttps://doi.org/10.3130/aijsaxx.71.0_47

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This investigation shows us how the playing of children changes with the seasonal influence, through an year in the outdoor area of R.C. Flat Housing. The coefficient of the shadow area of buildings was calculated as the basic data to get the correlation with the condition of sunshine, and, with using it, the correlation between the one and the other was analysed, 1) The distridution of the number of persons being out allday long varies with the season. These can be classified as the spring-autumn type, the winter type and the summer type. 2) In the spring-autumn type, there are two peaks in the morning and afternoon. They correspond to the playing hour of the infants and children. 3) Both winter pattern and summer pattern are influenced by the condition of sunshine, especially by the rate of the shadow area owing to houses and builbings. It is especially remarkable in the summer type. 4) As the rate of the shadow area is different with the direction angle of the building, it is necessary to make-45 degrees of the angle, for the purpose of much more approaching to the spring-autumn type than the present condition in the summer-playing of the infants and children. 5) Generally speaking, when the direction angle of the building is over forty-five degrees, the value of the rate of the shadow area in the model housing increases, and the change in the rate of all day is very 6) The relation between the distribution of the playing in the summer type and the rate of the shadow area is found almost in a straight line.

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10) PRUFUNG AUF DIE FAMILIENSTRUKTUR IN SIEDLUNGEN

RYOJI IKEDA

Article type: Article
1962 Volume 71 Pages 53-57
Published: April 30, 1962
Released on J-STAGE: August 30, 2017

DOIhttps://doi.org/10.3130/aijsaxx.71.0_53

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Seit 1955, hatte the Japan Housing Corporation (die offentliche Korporation fur Wohnungsbau) zahlreiche groβere Siedlungen im Vorort der groβten Stadte-Tokyo; Osaka, Nagoya, Fukuoka-verrichtet, zwar, aus Grunde der Miete-und Kostenbedingung, sind die Wohnungen leider noch klein und uniformirt. Die Bewohner dieser Wohnungen gehoren meistens in die jungere mittlere Klasse-white colar-und gegen das moderne Leben in der neueren Nachbarschaft, die von einer vernunftigen Stadtebauliches Idee angestaltet werden, sind die Burger nicht nicht gewohnnt. Wie werden sie ihren festen Wohnsitz haben, well solche neue Wohnumgebung von der japanischen traditionalen Wohnweise unterschieden ist? Und was fur eine soziale Nachbarschaft gestaltet wird, ist der Punkt dieser Forschung. Die Fragen sind: 1) Wie wachst die Einwohnerzahl an und wie verandern sich die Familientypus, in den eingeschrankten Raumen? 2) Wie ist der Lebensstandard der modernen Siedlungen? Was fur ein Unterschied zwischen dem Lebens-standard der gewohnlichen Wohnungen gibt es? 3) Wird die soziale Struktur jeder Siedlung eine charakteristische Eigenheit ziehen, die jeden regionalen Charaktur naher bringt? 4) Wie ziehen die Einwohner in der Nachbarschaft und Stadt um? Auf die obigen Frage, batten wir die Untersuchung gemacht, in den versuchten wir den charakteristischen Unterschied zwischen neueren, alteren und verschiedene regionalen Siedlungen. Im allgemeinen, sind die Einwohner mehr junger, und vielversprechender homogenere Generationen als die Allgemeinheit der Stadt. Auch ist die Zahl der Haushalte verhaltnismaβig klein (2-4 Personen/Familie) und ihr Einkommen groβer. Doch diese eine Masse die dringende Not gegen Wohnungen gelegentlich in der Siedlungen vorlaufig ausgehalten wird, ist bis jetzt die vertrauliche Nachbarschaft noch nicht ausgefuhrt, und wird nur ein Schlaf-Ort fur die Arbeiter zum Zentrum der Stadt. Wenn eine Genuge des Lebens in der Siedlung erwartet wird, muβ ihre zukunftige Umgebung mit vollen Einrichtungen und genugendem Entwurf der Wohnung zu halten werden.

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11) FARM HOUSES IN YACHIO-MURA, Minami-Saku-District, Nagano-Prefecture

SEI YOSHIDA

Article type: Article
1962 Volume 71 Pages 58-63
Published: April 30, 1962
Released on J-STAGE: August 30, 2017

DOIhttps://doi.org/10.3130/aijsaxx.71.0_58

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This report is a summary of the investigarion on the old private houses in Yachio-Mura, Minami-Saku-District, Nagano-Pefecture. The investigation was made by the request of the department of social education of Nagano Prefectural Office, in July and August, 1961, by 10 members of graduate students (P. O's seminar) under the guidance of Professor Ohta and its result was ar anged and got into shape be Sei Yoshida. The report consists of the following three parts: 1. To interpret the plans and struchtu s of the houses which are considered to be the typical old farm houses in this area among other houses which are investigated. 2. The old farm houses have been rebuilt many times according to the transition in the way of living in the long history. The first step to our investigation on the old farm houses is to know their original condition when they were first built. With many actual examples, we interpret the restoration-to restore the original condition of the houses by studying the condition of the present houses which have been rebuilt. 3. To classify these restored old farm houses into cerfain types, arrange them in chronological order, and decide the orderr of the groups of houses according to the degree of development in style. As there are several houses among the objects of our study, of whom the date of establishment is known, we use them as the standard and correct the result of "the chronological classification in style" above mentioned, with the consideration of the classes of people who lived in the houses. As the result of these studies we have found that the date of establishment of these old farm houses investigated extends from the middle of the 18th (eighteenth) century to the late ninteenth century, and how the farm houses of the various classes in Yachio-Mura were developed during that period.

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12) A STUDY ON THE STONE ARCH BORIDGE "Reidai-Kyo"

SEIROKU OHTA

Article type: Article
1962 Volume 71 Pages 64-69
Published: April 30, 1962
Released on J-STAGE: August 30, 2017

DOIhttps://doi.org/10.3130/aijsaxx.71.0_64

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Many stone arch bridges are found all over Kyushu Island, and few of stone arch bridges are found other land in Japan. This work proves that Reidaikyo is the greatest single stone arch bridge in Japan, and fixed an age that this bridge was built. This arch form was showed by survey, it forms perfect semicircle.

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[title in Japanese]

[in Japanese]

Article type: Article
1962 Volume 71 Pages 70-
Published: April 30, 1962
Released on J-STAGE: August 30, 2017

DOIhttps://doi.org/10.3130/aijsaxx.71.0_70

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[title in Japanese]

[in Japanese]

Article type: Article
1962 Volume 71 Pages 71-73
Published: April 30, 1962
Released on J-STAGE: August 30, 2017

DOIhttps://doi.org/10.3130/aijsaxx.71.0_71

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[title in Japanese]

[in Japanese]

Article type: Article
1962 Volume 71 Pages 74-75
Published: April 30, 1962
Released on J-STAGE: August 30, 2017

DOIhttps://doi.org/10.3130/aijsaxx.71.0_74

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[title in Japanese]

[in Japanese]

Article type: Article
1962 Volume 71 Pages 76-
Published: April 30, 1962
Released on J-STAGE: August 30, 2017

DOIhttps://doi.org/10.3130/aijsaxx.71.0_76

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[title in Japanese]

Article type: Appendix
1962 Volume 71 Pages 77-
Published: April 30, 1962
Released on J-STAGE: August 30, 2017

DOIhttps://doi.org/10.3130/aijsaxx.71.0_77

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[title in Japanese]

Article type: Bibliography
1962 Volume 71 Pages 78-82
Published: April 30, 1962
Released on J-STAGE: August 30, 2017

DOIhttps://doi.org/10.3130/aijsaxx.71.0_78

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[title in Japanese]

Article type: Bibliography
1962 Volume 71 Pages 82-
Published: April 30, 1962
Released on J-STAGE: August 30, 2017

DOIhttps://doi.org/10.3130/aijsaxx.71.0_82

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