Transactions of the Architectural Institute of Japan

[title in Japanese]

Article type: Cover
1976 Volume 250 Pages Cover1-
Published: December 30, 1976
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.250.0_Cover1

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[title in Japanese]

Article type: Cover
1976 Volume 250 Pages Cover2-
Published: December 30, 1976
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.250.0_Cover2

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[title in Japanese]

Article type: Appendix
1976 Volume 250 Pages App1-
Published: December 30, 1976
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.250.0_App1

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[title in Japanese]

Article type: Index
1976 Volume 250 Pages Toc1-
Published: December 30, 1976
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.250.0_Toc1

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[title in Japanese]

Article type: Appendix
1976 Volume 250 Pages App2-
Published: December 30, 1976
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.250.0_App2

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ANALYSIS OF REINFORCED CONCRETE SECTIONS SUBJECTED TO BI-AXIAL BENDING MOMENTS

KATSUKI TAKIGUCHI, SEIJI KOKUSHO, KATSUMI KOBAYASHI

Article type: Article
1976 Volume 250 Pages 1-8
Published: December 30, 1976
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.250.0_1

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This study deals with the analysis of the test results on twenty-six specimens subjected to bi-axial bending moments. Specimens have 10cm square section or 15cm square section. Most part of experiments have been published in Trans. A.I.J. No.229 and No.247. The cross section is partitioned by a rectangular grid into a large number of small elemental areas. It is assumed that each element is uniaxially stressed and that the section remains plane after deformation. The moment-curvature relations are obtained by step-by-step application of force-deformation equations. In this sectional analysis, stress-strain hysteresis rules of concrete and reinforcing bar are postulated according to recent experimental studies on them. A part of analytical results are presented in this paper. Experimental and analytical results coincide quite well.

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STATIC AND DYNAMIC ANALYSES OF REINFORCED CONCRETE FRAMES WITH FRAMED SHEAR WALLS ARRANGED APART

Koji Yoshimura, Masafumi Inoue

Article type: Article
1976 Volume 250 Pages 9-17
Published: December 30, 1976
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.250.0_9

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Linear static and dynamic analyses of reinforced concrete frames with framed shear walls arranged apart are carried out for various arrangements of framed shear walls. Analytical results indicate that dynamic response of such frames during an earthquake can be approximately evaluated by the static analysis.

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AN AUTOMATIC ELASTIC-PLASTIC ANALYSIS OF PLANE FRAMES

MASAO NARUOKA, HIROYUKI KOJIMA, KIYOSHI HIRAO

Article type: Article
1976 Volume 250 Pages 19-29
Published: December 30, 1976
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.250.0_19

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This paper deals with a second-order elastic-plastic analysis of plane frames under proportional loading, in which the yield condition is used considering the combination of bending moment and axial force. Frames are assumed to consist of elastic-perfectly plastic material, and flow law of Mises criterion is assumed to be valid in plastic range. The nonlinear relationships of incremental forces and deflections at yield sections are replaced with linear ones by the methods of lower and upper bound procedures. The loading is changed by minimum load factor, and complete nonlinear load-deflection curve of a frame is traced up to collapse by mechanism or overall buckling. The nonlinear basic formulas of the deformation method for the members which have various end conditions are derived considering the instability effect of axial force, the change of geometry and the initial deformation of the member. The analytical procedure is programmed for digital computer FACOM 230-75. Numerical examples for portal frames are given, and the results are compared with the analytical data available in the literature to disscuss the validity of this analysis.

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INELASTIC BEHAVIOR OF HIGH STRENGTH STEEL FRAMES SUBJECTED TO CONSTANT VERTICAL AND ALTERNATING HORIZONTAL LOADS

CHIAKI MATSUI, ISAO MITANI

Article type: Article
1976 Volume 250 Pages 31-41
Published: December 30, 1976
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.250.0_31

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The behavior of high strength portal frames under constant vertical loads and alternating horizontal force was studied experimentally. Test frames were made by using welded wide flange sections of mild steel SM 41 and high strength steel SM 50, SM 58, respectively. Some obervations from the test results are as follows; (1) When vertical loads are large, the maximum restoring force at each cycle increases up to a certain value as the number of loading cycles increases, even in a region past the point of frame instability. The maximum restoring force depends on the magnitude of the ratios σ_y/σ_u of yield stress σ_y to tensile strength σ_u and P/P_y of column load P to column axial yield load P_y. The value of σ_y/σ_u becomes large, the ratio of the maximum restoring force to the theoretical plastic collapse load becomes small. (2) Both of the dimensionless accumulated plastic energy absorption capacity and dimensionless accumulated plastic deformation capacity of high strength steel frames were very small in comparison with the ones of mild steel frames. (3) High strength steel frames have not much advantage from the point of view of energy absoption capacity of a structure under alternating repeated loads. Experimental hysteretic behavior is fairly well predicted by elastic-plastic analysis based on the moment-curvature relations that take account of the effect of ratio σ_y/σ_u. The maximum restoring force and the limit value of average axial strain under repeated horizontal force are predicted by simple analytical method taking account of the effect of ratio σ_y/σ_u.

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THE IMPROVED NON-LINEAR THEORY OF THIN ELASTIC SHELLS AND THOSE APPLICATION : PAPT II Approximation Based on the Standards of the Order Estimation

TOSHIO NISHIMURA, MITSUHARU KURATA

Article type: Article
1976 Volume 250 Pages 43-51
Published: December 30, 1976
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.250.0_43

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We obtained the lowest order non-linear basic equations. (i. e. the lowest strain tensors, the lowest two dimensionalized strain energy functions, the lowest constitutive equations, the lowest balance equations and the lowest mechanical boundary conditions) The main purpose of this paper is to approximate systematically non-linear basic equations derived in Part I. We proposed four standards for estimating about the order of magnitude with dimensionless parameters. (i. e. dimensionless displacements, dimensionless curveture and the wave length in shell region.) The derived non-linear basic equations in terms of displacements were approximated systematically on the basis of those.

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[title in Japanese]

Article type: Appendix
1976 Volume 250 Pages 51-
Published: December 30, 1976
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.250.0_51

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Research on Thermal Environments in Urbanized Areas : Part 2. Survey of Thermal Environments in Tokyo

TOSHIO OJIMA, TATSUO OKA

Article type: Article
1976 Volume 250 Pages 53-60
Published: December 30, 1976
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.250.0_53

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In the Tokyo district, there are 14 observatories evenly to make hourly meteorological observations. By recording these meteorological data on magnetic tapes at intervals of one hour throughout the year and analyzing them, it is thought possible to grasp positive thermal environments in urbanized areas. This paper consists of outlines of thermal environments in the Tokyo district, analyses of correlations between various meteorological factors and temperature and humidity distributions, analyses of correlations between areas of thermal environments and preparation of widearea thermal environment distribution maps. Temperature distribution are closely related to humidity distributions, and the intensity of these distributions is approximate proportional to the quantity of potential evapotranspiration. A sort of probability theory was used to draw distribution maps. At the center of Tokyo, there are rather many green tracts comparatively, therefore, high temperature areas appear around the center of the urbanized area in summer time, and the large heat-island phenomena are seen at the center of the city in winter time.

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INVESTIGATION OF THE METHOD OF CALCULATION OF WATER CONSUMPTION IN THE DESIGNING OF BUILDING EQUIPMENTS : Part 3 The Analysis of Flow Rate in Water Supply Pipes and Plumbing Fixtures

SABURO MURAKAWA

Article type: Article
1976 Volume 250 Pages 61-70
Published: December 30, 1976
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.250.0_61

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This paper is described the hydraulic basic deta of flow rate in faucets and closet valve which are used in the calculation of water consumption. Namely, flow rate out of faucets and closet valve, and change of flow rate caused by simultaneous uses are experimentally analysed, and standard flow rates used in the calculation are investigated.

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EXPERIMENT ON AUTODOORS USABILITY FOR VARIOUS TYPES OF THE PHYSICALLY HANDICAPPED AND BUILDING DESIGN : Studies on Horizontal Transportaion Media in Buildings for the Disabled : Part I

AKO YOSHIDA, TOMOKATSU HASHIMOTO, AKIRA YOSHIDA

Article type: Article
1976 Volume 250 Pages 71-80
Published: December 30, 1976
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.250.0_71

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STUDY ON THE PREDICTION ABOUT THE NUMBERS OF THE OUTBREAK OF FIRES CAUSED BY THE EARTHQUAKES

HIROYUKI MIZUNO, SABURO HORIUCHI

Article type: Article
1976 Volume 250 Pages 81-90
Published: December 30, 1976
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.250.0_81

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In this papers, using the relationship between the ratio of the outbreak of fires and the ratio of the totally destroyed dwelling houses considering the season and the time when the earthquake occurred, we tried the prediction about the numbers of the outbreak of fires caused by the earthquakes. And moreover, the numbers of the outbreak of fires predicted by means of this method are compared with the numbers of that predicted by another method used up to this time. The contents of this papers are as follows; §1. Introduction §2. The outline of the formula on the outbreak of fires caused by the earthquakes. §3. The reiability of the formula on the outbreak of fires. §4. Prediction about the numbers of the outbreak of fires. §5. Comparison with this method and another one used up to this time. §6. About the ratio of the numbers of flare-up fires to those of all fires, and also, the ratio of the numbers of small fires extinguished by citizens to those of all fires. §7. Summary.

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SYSTEM ANALYSIS FOR FIRE PROTECTION PLANNING : 1. The method of total evaluation of fire protection planning

SHIGERU WAKAYAMA

Article type: Article
1976 Volume 250 Pages 91-96
Published: December 30, 1976
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.250.0_91

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This study deals with a system evaluation for fire protection planning of buildings. The state of fired building could be analysed to the next four aspects, 1. fire, 2. information, 3. extinguishment, 4. refuge. All the elements which have a relationship to fire and refuge, were listed according to these 4 aspects, and were studied the function between each others. They were arranged as a diagram which express correlationship between those elements, and the program which simulate the state of fire, including smoke, discovery, information, refuge and extinguishment, was settled for the purpose of evaluation of fire protection plannings. For the first case-study a high story apartment house project which is thought to become a proto-type of housing in the cities, has been chosen. In this report, the result of refuge simulation and feed-back to the planning were explained.

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A STUDY OF THE ALTERATIONS AFFECTED BY THE PROCESS OF TIME ON URBAN LAND USE : The comparative investigation for urban land use in Osaka with the pre war period and the post war period. (No.1) : The conditions of urban land use and the densities of population

YASUTOSHI MITSUZAKI

Article type: Article
1976 Volume 250 Pages 97-105
Published: December 30, 1976
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.250.0_97

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The following is to describe some of the principles of analyitcal method developed for this study, which investigates changing conditions of urban land use in Osaka from about the year 1935 to the year 1970. This study found that changes of land use have been affected by the progress of time, and by the enlarging and diminishing of the elements composing this city. Comparing the year 1935 to the year 1970, this study sought to find the interrelationship between the various elements of urban land use, especially analysing how the element of private urban land use, affected over-all urban land use in Osaka. Some results are shown as follows. 1) In Osaka in 1935, the net population density of private urban land use was remarkably high. 2) At the same time, except for the five central wards in Osaka, the ratio of green space was also high. 3) In Osaka after 1970, the net population density of private urban land use has fallen, and there's been a decrease in green space in the outer wards. These changes will greatly influence the civilians actions in daily life. Because of this great influence, it is important that this study continue, keeping abreast with changes in daily life as they happen.

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ON THE POPULATION STRUCTURE IN METROPOLITAN PUBLIC OPERATED HOUSES (Part One)

JUN UENO

Article type: Article
1976 Volume 250 Pages 107-116
Published: December 30, 1976
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.250.0_107

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This is a study on the population structure in Metropolitan Public Operated Houses. This research consists of two parts ; Part 1 reporting the yearly changings of population, and Part 2 reporting the population structure through the family-type analysis. The contents of this Part 1 are as follows : 1. Method of investiation. 2. Yearly Changings of the total population and the population composition. 3. Yearly Changings of the population of children. 4. Yearly changing of the population of the aged, and the number of the households which contain the aged.

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BASIC STUDY ON PUBLIC HOUSING : Part 3 Household Structure of Public Housing Residents

SHINGO TAMAKI

Article type: Article
1976 Volume 250 Pages 117-124
Published: December 30, 1976
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.250.0_117

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The purpose of this paper is to analyze the household structure of public housing residents, that is, age of household heads, household members and family type of household. The conclusions of analyses about the household structure in this paper and the social stratum in the last papers are integrated as follows, 1. The ratios of public housing stock are between 2〜7% to the total tenure of dwelling houses. Its ratio is higher in the metropolitan city than in the local city. However, these figures indicate 11〜13% to the total rented houses, so in the ratio to the rented houses, discrepancies in locality are very little. 2. The characteristics of the public housing residents in the social stratum and household structure are summarized as follows, that is, lower class in household income, labourer in occupation, younger in age of household head, fewer in household members and younger family nuclei in the family type of household. 3. Above-mentioned characteristics are more remarkably indicated in the local cities, and they are also indicated more in the second class public housing residents in comparison with the first class public housing residents. 4. However, among the different localities there are remarkable discrepancies in these above difinitions. In the metropolitan big city, the pattern of the public housing residents, especially the first class public housing residents are approximately equal to the ordinary citizen, that is, average dweller of all tenure of dwelling houses in the above-mentioned items. So, it is not appropriate to situate the public housing residents in the metropolitan city as a some specified class. 5. On the other hand, in the small rural city needy persons account for the considerable percentage of the public housing residents. They have following characteristics, that is, the lowest class in income, day or non-occupation in occupation, elder in age and one person household in family type of household.

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On "MURO" building

NORIKUNI KIMURA

Article type: Article
1976 Volume 250 Pages 125-133
Published: December 30, 1976
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.250.0_125

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This paper consists of the following two chapters, I. "Muro" buildings in 8th century literature. II. The architectural images of "Muro" buildings. This is the first half of the thesis "On 'Muro' building and 'Nifimuro-no-Utage'". The author will present a synopsis of the whole thesis in the next issue of "Transactions of A.I.J." in which the latter half of the thesis will be published.

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FARMER'S HOUSE OF ECHIZEN AREA, A STUDY OF HOUSE AND FAMILY RESISTRATION BOOKS (IHEBETSU JINBETSU CHO), 1719-1868 : Part 5・The relationships between the average floor area, and the average residents of each household

HIROYASU YAMADA

Article type: Article
1976 Volume 250 Pages 135-144
Published: December 30, 1976
Released on J-STAGE: August 22, 2017

DOIhttps://doi.org/10.3130/aijsaxx.250.0_135

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