日本建築学会論文報告集

表紙

原稿種別: 表紙
1963 年 81 巻 p. Cover1-
発行日: 1963年
公開日: 2017/08/30

DOIhttps://doi.org/10.3130/aijsaxx.81.0_Cover1

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目次

原稿種別: 表紙
1963 年 81 巻 p. Cover2-
発行日: 1963年
公開日: 2017/08/30

DOIhttps://doi.org/10.3130/aijsaxx.81.0_Cover2

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周期頻度解析器

原稿種別: 付録等
1963 年 81 巻 p. App1-
発行日: 1963年
公開日: 2017/08/30

DOIhttps://doi.org/10.3130/aijsaxx.81.0_App1

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CONTENTS

原稿種別: 目次
1963 年 81 巻 p. Toc1-
発行日: 1963年
公開日: 2017/08/30

DOIhttps://doi.org/10.3130/aijsaxx.81.0_Toc1

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コンクリートのレオロジーに関する研究 : Maxwell, Burgers modelを用いた実験と解析

大岸佐吉

原稿種別: 本文
1963 年 81 巻 p. 1-6
発行日: 1963年
公開日: 2017/08/30

DOIhttps://doi.org/10.3130/aijsaxx.81.0_1

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On account of the concrete is an inelastic material, it is well known that the compressive strength and the strain of concrete vary by the loading speed. And even though the small stress is acted to concrete, it take with the continous flow deformation. Althoug the concrete is regarded as a hook body in the first approximate, the mechanism of viscous flow is assumed as a Maxwell liquid or Burgers body in case of we consider a rheological behavior of it. We carried into execution the experimetal study on the effect which the loading speed have influence upon the strength and the strain of the hardening concrete. From the experimental results we calculated the coefficient of viscosity η_M of concrete appling the Maxwell model. According to our analytical results, the values of η_M vary by the loading speed (10^1, 10^0, 10^<-1> kg/cm^2sec), and it was found out in order 10^<12>, 10^<13>, 10^<14> poise. And also from the creep strain of concrete observed in about three or ten years author analyzed the coefficeint of viscosity useing the Burgers model. According to the calculating results η was obtained as following. η_M=10^<19>〜10^<20>, η_K=10^<17>〜10^<19> poise. By the aboving fact we deduced that the component of viscosity η of concrete consiste of the many grade. Arelaxation time τ_M and retardation time τ_K leaded from these η is τ_M=10^1〜10^9 sec, τ_K=10^7〜10^8 sec. Therefore we think that the rheological behavior of concrete must be considered by the conception of distribution function of relaxation time or retardation time.

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中小現場のコンクリート強度の試験成績と日間変動について

正法院陽三

原稿種別: 本文
1963 年 81 巻 p. 7-11
発行日: 1963年
公開日: 2017/08/30

DOIhttps://doi.org/10.3130/aijsaxx.81.0_7

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This report is on the results of test made for four years (1958〜1961) in connection with middle & smale buildings constructed under the inspection and guidance of the Building & Repair Division of Kinki Regional Construction Bureao: the within day varition, the between day variation, the ratio of eligibility under required strength F_0, etc., in the compressive strength of concrete above referred to have been investigated and in view of the results thus obtained a study has been made of J.A.S.S. 5 regulations on guality control of concrete. The within day variations standard deuiation (σ_ω) of the compressive strength of concrete are smaller in each class than J.A.S.S. 5 values, that is, class A-10kg/cm^2, class B-22 kg/cm^2. The between day variation's standard deviation (σ_♭) of the compressive strength of concrete are: class A-25kg/cm^2, class B-45kg/cm^2, that is, in class A σ_♭ is nearly the same as J.A.S.S. 5 value, in class B that is 1.3 times as big as J.A.S.S. 5 value, and the ratio of eligibility under required strength F_0 is 50%, and in effecting quality control of concrete J.A.S.S. 5 regulations cannot assure the quality required. From this viewpoint there should be regulations in which the between day variation is fully considered. According to this study the standard deviations in each class are: class A-σ_ω&eDot;10kg/cm^2, σ_♭&eDot;25kg/cm^2, σ_<total>&eDot;27kg/cm^2, class B-σ_ω&eDot;22kg/cm^2, σ_♭&eDot;45kg/cm^2,σ_<Total>&eDot;50kg/cm^2.

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オクタプラッテの応力解析と実験(続)

加藤勉, 高梨晃一

原稿種別: 本文
1963 年 81 巻 p. 12-16
発行日: 1963年
公開日: 2017/08/30

DOIhttps://doi.org/10.3130/aijsaxx.81.0_12

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In the previous paper, the outlines of the methods for the theoretical stress analysis and the experimental stress analysis on "Oktaplatte", a kind of spaced frames, have been reported. In this report, the calculation method of the stresses of lattice members is imformed. Then, the calculations of the model of "Oktaplatte" are carried out for example, and the results are compared with the results of the load tests as before. Furthermore, tho outlines of vertical and horizontal load tests on the model is reported. From these data, we obtain the fact that the flexual rigidity of the model is rather smaller than that which is calculated by means of the previously described method, and the horizontal rigidity of the model is not larger than that of concrete diaphram, but larger than that of the diaphram which is usually used in the steel construction. It will be useful for designing "Oktaplatte".

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撓角法形式による骨組の弾塑性解析法とその応用(その2)

山田孝一郎

原稿種別: 本文
1963 年 81 巻 p. 17-21
発行日: 1963年
公開日: 2017/08/30

DOIhttps://doi.org/10.3130/aijsaxx.81.0_17

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This paper is the continuation of Part 1 written by the author in Transactions of A.I.J., No. 80, Dec. 1962. In the preceding paper, (1) Preface, (2) Relation between the bending moment and the curvature in reinforced concrete members, (3) A general equation of the member, in the system of the slope-deflection method, which causes the elastic and plastic deformations under the external force and (4) A elastic and plastic analysis of rigid-frames by the process of the slope-deflection method were discussed. In this paper the author deals with, using the principles discussed in Part 1, the application of the elastic and plastic analysis for the examples. The content consists of (5) The application for examples, (6) Summary, Gratitude and Reference. And the summary in english was represented in the preceding paper (Part 1).

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送電用鉄塔の実物実験について(1) : 台風により倒壊被害をうけた鉄塔の再現荷重試験

石崎溌雄, 石田昭, 川村純夫

原稿種別: 本文
1963 年 81 巻 p. 22-27
発行日: 1963年
公開日: 2017/08/30

DOIhttps://doi.org/10.3130/aijsaxx.81.0_22

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The stress distributions of the member, the deflections of typical points of the full sized model of a transmission tower which was damaged and overturned by the typhoon-ISEWAN On 26sept. 159 were measured by loading tes. The applied loads were equal to the actual dead load by angle effect of line tensions, the dead weight of tower, and the wind pressure on the wires and the tower. The tests were made by two cases (a) and (b). In the test (a), the wind direction was assumed to be normal to the transmission line, and the loading was limited in elastic range alone, and in the test (b), the wind direction was assumed to be inclined as 45°to the line, and the loading was applied up to the failure. The ultimate load reached up to 2.2 times of the design load, and this toad was equivalent to the wind pressure due to its velocity 70m/sec when the reduction factor of the velocity pressure on wires was assumed as 0.6 to that on the tower itself. The actual wind velocity at the site to the destroyed tower was supponsed to be about 65m/sec from some investigations. The collapse is considered to be caused by the bynamic effect of the wind together with the static wind pressure. The authors will show more detailed considerations on it in the following Part-2.

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室内気候の快適性に関する実験的研究

平山嵩, 真許喜久雄

原稿種別: 本文
1963 年 81 巻 p. 28-33
発行日: 1963年
公開日: 2017/08/30

DOIhttps://doi.org/10.3130/aijsaxx.81.0_28

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This experimental study has been carried out as a part of "the Study on Improvement of Environmental Conditions for Office Rooms" undertaken as a two-year plan by a research group organized under Dr. Hirayama. The achievements of Yaglou, etc. in their laboratory works on the relation of comfort with human sensation of warmth are quite well known to us ever since. However, in the actual application of their comfort chart, we have some questions such as: - (a) The influence of temperature difference between the air and walls is not implied. (b) Their chart being based on normal clothing, there remains some doubt in its application to the case of summer clothing. (c) Procedure of statistic analysis was not rendered. (d) The possible discrepancy in case of Japanese people has not been clear. In order to supplement with such informations as above, and at the same time to solve relevant questions such as cooling limit in summer air conditioning, etc., we carried out the experiments in 1961 and 1962, and this report is chiefly based on that in the summer of 1962 over a total period of three weeks on the total number of subjects of about 180 mostly consisting of university students. The statistic analysis of the results obtained has proved that the comfort percentages follow a pair of normal distribution curves, through linear transformation, of two different values of standard deviations applied to each side of the optimum line, respectively. When statistic variance is accounted, 50% level of comfort band extends from 19.7℃ to 23.8℃ of corrected effective temperature with the optimum line of 21.2℃ but 75% level only covers a narrow band of 1.6℃ from 20.6℃ to 22.2℃, and the lower limit of this optimum band may safely be taken as the cooling limit in ordinary summer air conditioning.

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BEHAVIOUR OF STORONG WIND IN CONFLAGRATION

亀井幸次郎

原稿種別: 本文
1963 年 81 巻 p. 34-39
発行日: 1963年
公開日: 2017/08/30

DOIhttps://doi.org/10.3130/aijsaxx.81.0_34

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X線透視による金色堂の研究

関野克, 登石健三, 石川陸郎

原稿種別: 本文
1963 年 81 巻 p. 40-45
発行日: 1963年
公開日: 2017/08/30

DOIhttps://doi.org/10.3130/aijsaxx.81.0_40

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Preceding the restoration work expected to be made at an early date, an x ray radiographical survey was carried out on the wooden materials of the konjikido building, the Chuson-ji Temple at Hiraizumi. The hardness of x ray used is of the order of 50kv, which is determined by the preliminary test to be most appropriate for the study of wooden member of thickness up to 50〜60cm. The bracket on each column in this building is piled up with wooden tenons only, instead of using a metal core. Contradicting with the traditional opinion that the four decorated columns of the central altar are hollow, the radiography revealed their structure as follows. In each column, eight pieces of board are fixed with iron nails to an octagonal core lumber to make a round piller, and the applied cover boards have been almost decayed by bacteria. Every one of those columns and also of other timbers of this building is covered with Japanese lacquer layer for the purpose of decoration. This lacquer layer seems to prevent aspiration of moisture of wood, and to make a favorable condition for propagation of the bacteria in the wood in summer time. The decay of the cover boards may be understood to have been the result of this effect. The core lumbers, however, to be almost free from decay. The narrow gap between the core and the applied cover boards, existence of which is easily seen on the radiographs, is thought to be responsible for losing the moldering consition thus invoked in the column. The presence of the lacquer layer, on the contrary, seems to have prevented invasion of insects from the surface. Insect damages can be seen at some of combined portions of part materials. But such damages seem to be rather smaller compared with the decay from fungi.

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福井県の近世民家の類型

宮沢智士

原稿種別: 本文
1963 年 81 巻 p. 46-51
発行日: 1963年
公開日: 2017/08/30

DOIhttps://doi.org/10.3130/aijsaxx.81.0_46

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This report forms a part of the studies on the farmhouses in Fukui-prefecture. We invastigated 34 farmhouses in various parts of Fukui prefecture. The date of farmhouses we invastigated extends from the 17th century to the 19th century. The first step to our investigation on the farmhouses is to know their original plan and constraction when they were first built. Next we tried comparing the plan and constraction in one place with them the other places. As the result of these studies we have found that the farmhouses in Fukui prefecture are grouped five types in style and form. The farmhouses that belong to first group are widely distributed in the Eehizen plains, the mountainaus district of Niu and these conected valley. The plan of these farmhouses are "Hiroma" style. The farmhouses that belong to the other four groups are distributed in the mountianaus distrct (Ohno-sanchi, Imadate-sanchi and East and West Wakasa district). The farmhouses that belong to the other four groups have their own features.

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東大地震研究所について : 研究所紹介・その12(学界情報)

大沢胖

原稿種別: 本文
1963 年 81 巻 p. 52-53
発行日: 1963年
公開日: 2017/08/30

DOIhttps://doi.org/10.3130/aijsaxx.81.0_52

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自治省消防研究所の現況 : 研究所紹介・その13(学界情報)

堀内三郎

原稿種別: 本文
1963 年 81 巻 p. 54-55
発行日: 1963年
公開日: 2017/08/30

DOIhttps://doi.org/10.3130/aijsaxx.81.0_54

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SYNOPSIS

原稿種別: 文献目録等
1963 年 81 巻 p. 56-58
発行日: 1963年
公開日: 2017/08/30

DOIhttps://doi.org/10.3130/aijsaxx.81.0_56

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