-
Article type: Cover
1978 Volume 270 Pages
Cover1-
Published: August 30, 1978
Released on J-STAGE: August 22, 2017
JOURNAL
FREE ACCESS
-
Article type: Cover
1978 Volume 270 Pages
Cover2-
Published: August 30, 1978
Released on J-STAGE: August 22, 2017
JOURNAL
FREE ACCESS
-
Article type: Appendix
1978 Volume 270 Pages
App1-
Published: August 30, 1978
Released on J-STAGE: August 22, 2017
JOURNAL
FREE ACCESS
-
Article type: Index
1978 Volume 270 Pages
Toc1-
Published: August 30, 1978
Released on J-STAGE: August 22, 2017
JOURNAL
FREE ACCESS
-
Article type: Appendix
1978 Volume 270 Pages
App2-
Published: August 30, 1978
Released on J-STAGE: August 22, 2017
JOURNAL
FREE ACCESS
-
KIICHIRO MUTA
Article type: Article
1978 Volume 270 Pages
1-6
Published: August 30, 1978
Released on J-STAGE: August 22, 2017
JOURNAL
FREE ACCESS
As the pages are limited, this paper is separated into 3 parts. This Part 1 deals with rough estimation method of required pumping volume for the sprayed fire protection, based on the investigation research on the actual condition of high-rise buildings. The obtained results are as follows; a) The gross area (m^2) of fire protection for each building is nearly equal to one and quarter times of the gross area (m^2) of typical floor, and to ten times of the gross weight (ton) of the used steel frame. b) The required pumping volume can be estimated roughly upon the scheduling, utilizing the above relationship.
View full abstract
-
KUNIO YAMAGATA, SHINTARO YAO
Article type: Article
1978 Volume 270 Pages
7-15
Published: August 30, 1978
Released on J-STAGE: August 22, 2017
JOURNAL
FREE ACCESS
When vertical loading tests of single piles are conducted following problems should be considered. a) Definitions and interpretations about yielding load or ultimate bearing capacity are not sufficient. b) Differencies of mechanical behaviors characterized by pile materials, methods of setting the piles and scale effects can not be said to be clered up theoretically. c) Problems of technics in loading test using reaction piles or measuring settlements of piles and ground or so. d) Problems about differenceies between mechanical behaviors at loading tests and long term working load. This report deals with these probrems, and three examples (EX. 1, 2, 3) obserbed in siteare picked up here to discuss the applicabilities of author's theory shown in previous report (Part I) to these. Conclusions obtained are as follows. 1) Settlement behavior of driven piles can be recognized to be pure elastic and plastic considering pre-loads during pile driving as history. 2) EX. 1 and 2 are the cases of driven piles. In EX. 1 after R_f (frictional resistance) reached _uR_f (ultimate capacity of R_f) pile tip force can not reach it's ultimate because of it's closed end. But in EX. 2, after R_f reached _uR_f pile tip force soon reaches it's ultimate state because of it's opened end. 3) EX. 3 is the case of cast in place concrete pile. In this case both pile surface and pile tip shows true virgin load-settlement behaviors. Settlement is very large compared with driven piles, but the load-settlement mechanism is similar to that of driven piles. 4) Influences of using reaction piles on loading test data are very large when R_f is smaller than _uR_f.
View full abstract
-
MINORU YAMADA, BUNZO TSUJI
Article type: Article
1978 Volume 270 Pages
17-22
Published: August 30, 1978
Released on J-STAGE: August 22, 2017
JOURNAL
FREE ACCESS
For the analysis of elastic plastic cyclic behavior of structural steels, a new model is proposed modifying the Prager's kinematic hardening model. During the plastic flow, this model behaves as the kinematic hardening model or as the isotropic-kinematic hardening one. In the isotropic-kinematic hardening range, the combination parameter β is introduced. The isotropic hardening and the kinematic hardening behavior occur in the ratio of β and (1-β), respectively. β=1 corresponds to purely isotropic hardening and β=0 corresponds to purely kinematic hardening. Cyclic hardening behavior is observed at the first few cycles due to the expansion and translation of the yield surface and after that steady state behavior is observed due to the translation of the yield surface, under the cyclic straining with constant strain amplitudes. Generalized constitutive relationship of the model is obtained. Considering the Bauschinger's effect of the material, a series model is also proposed. This model consists of a collection of isotropic-kinematic hardening elements having different mechanical behaviors. Comparing with the experimental restlts obtained by Dr. Tanabashi et al., uniaxial stress-strain behavior by this model agrees fairly well with the experimental results.
View full abstract
-
Morihisa Fujimoto, Hirofumi Aoki, Fujio Asaoka
Article type: Article
1978 Volume 270 Pages
23-33
Published: August 30, 1978
Released on J-STAGE: August 22, 2017
JOURNAL
FREE ACCESS
-
KIYOSHI MUTO, TAKASHI UCHIDA, NOBUTSUGU OHMORI, ATSUHIKO YASAKA, AKIRA ...
Article type: Article
1978 Volume 270 Pages
35-42
Published: August 30, 1978
Released on J-STAGE: August 22, 2017
JOURNAL
FREE ACCESS
A reactor building is a large extraordinary structure consisting of thick walls and thick slabs. As the first step to establish a rational aseismic design procedure and construction method for such a particular structure, a BWR Mark II was chosen as a prototype. The object of the experiment was to grasp the overall behavior of the reactor building under earthquake forces. The specimen was a vertically split 1/25 scale model to which lateral forces were applied statically. The test made clear the strength and the deformation relationship, mode of failure, and the safety factors for design load. That is, the model failed in shear as anticipated, but possessed unexpected toughness and strength. The formula proposed by the authors for the strength-deformation relationships, which correspond moderately with other existing analytical load-deformation curves, represented extremely well the test results of the thick walled structure.
View full abstract
-
JUN SAKAMOTO, YOSHIRO KOHAMA, TOMIO YAMAZAKI
Article type: Article
1978 Volume 270 Pages
43-52
Published: August 30, 1978
Released on J-STAGE: August 22, 2017
JOURNAL
FREE ACCESS
It is the purpose of this paper to clarify inelastic dynamic behaviors of steel frames with bracings that have the degrading restoring-force characteristic. The outline of the study are as follows : (1) The reasonable lateral force bearing ratios of bracings and a frame in the plastic design process from the point of the pertinent dynamic charactericties. (2) The stationary random response of single-story braced frames subjected to the white excitation by the equivalent linearlization technique. (3) The dynamic behaviors of five-story, three-bay braced frames subjected to the non-white excitation by the Monte Carlo simulation technique.
View full abstract
-
HIROSHI YAMAHARA, KIYOTO SHIOYA
Article type: Article
1978 Volume 270 Pages
53-59
Published: August 30, 1978
Released on J-STAGE: August 22, 2017
JOURNAL
FREE ACCESS
Recently, the researches on the filtering effect of rigid foundation slab have become active in United States of America, keeping the development of a rational design method for nuclear power plants in mind. One of the authors presented this effect in 1969 using the observed earthquake records. In order to authorize the theory, this paper tried a proof of the filtering effect of foundation slab using two earthquake records at Hachinohe Technical College Bldg. during the after-shock of Tokachioki earthquake in 1968 and at Hollywood Storage Bldg. during San Fernando earthquake in 1971. The effective input motions to the building foundation were computed from the free field motions by passing through the numerical filter that represents the filtering effect of foundation slab. The foundation motions thus theoretically obtained were compared with the observed records at building foundation that obtained simultaneously with free field motions. The both were proved to be very similar to each other. It is well known that the earthquake response of structure is much or less influenced by the soil-structure interaction effect. However, the filtering effect should be distinguished from the soil-structure interaction effect. To make sure of the above, the building was represented by the mathematical model including foundation soil, and the transfer function of free field motion to the foundation response was presented. The transfer function thus theoretically obtained was proved not to be similar to that obtained from observed record. It was found that the transfer function in which the filtering effect and soil-structure interaction were taken into consideration gives the best similar tendency toward that obtained from observed record. In order to substantiate this effect for the design application, it is hoped that the additional research to make clear the general characteristics of this effect is promoted on the basis of several kinds of earthquake observation.
View full abstract
-
BEN KATO, HIROSHI AKIYAMA
Article type: Article
1978 Volume 270 Pages
61-68
Published: August 30, 1978
Released on J-STAGE: August 22, 2017
JOURNAL
FREE ACCESS
Total energy input into a structure exerted by an earthquake ground motion is scarcely affected by the strength and deformation characteristics of the structure. The distribution of damages, however, depends largely on the distribution of the strength of the structure. For the practical purpose of the structural design based on the ultimate strength design concept, it is essentially necessary to predict the concentration of damages which causes the collapse of the weakest story in a multi-story structure. In this paper, a basic law which governs the distribution of damages in shear-type multi-story steel buildings is derived through numerical response analyses, and is expressed in a simple empirical formula. Strain-hardening of structural steels is a preferable property to mitigate damage concentration. On the other hand, deterioration of restoring forces of the skeleton due to instability such as local buckling and flexural torsional buckling of structural members accelerates the concentration of damages. Thorough understanding and quantitative evaluation of these phenomena can be made by the analytical application of the proposed empirical formula.
View full abstract
-
NAOTSUNE TAGA, NOBUO KIMATA
Article type: Article
1978 Volume 270 Pages
69-80
Published: August 30, 1978
Released on J-STAGE: August 22, 2017
JOURNAL
FREE ACCESS
A multi-pile reinforced soil layer is assumed to be composed of two solid composite. The fundamental dynamic properties and wave propagation characteristics of the mixture ground with complex configuration is given by applying the two phase medium mechanics. Theory is presented by averaging the physical quantities such as displacements, stresses and density. The characteristic behavior of pile reinforced ground as two solid medium is explained in terms of the difference of the relative displacements between two average solid ones-pile and soil. The dispersion due to geometrical configuration of pile ground is given and considerable in comparatively low frequency range. The wave transfer properties is numerically analysed and the coupling terms interacted between two solid interfaces are discussed.
View full abstract
-
TOSHIO MOCHIZUKI, MICHIO MIYANO, IWARE MATSUDA
Article type: Article
1978 Volume 270 Pages
81-90
Published: August 30, 1978
Released on J-STAGE: August 22, 2017
JOURNAL
FREE ACCESS
This paper investigates damage of the wooden houses due to the Great Kanto Earthquake, 1923. At firstt the relations among the epicentral distance, the landform (geology) and damage of the wooden houses were showed quantitatively. Then the difference between damages at the upthrown block and downthrown block of fault was investigated. On this occasion, the epicenter was assumed a line 85km long along the Sagami Trough on the strength of the recent geodesic researches.
View full abstract
-
YUTAKA MATSUSHIMA
Article type: Article
1978 Volume 270 Pages
91-97
Published: August 30, 1978
Released on J-STAGE: August 22, 2017
JOURNAL
FREE ACCESS
This paper is concerned with the analytical estimation of probabilistic properties of the stationary random response for the single-degree-of-freedom system with the slip hysteresis, when subjected to the Gaussian white excitation. Since the slip hysteretic oscillator with perfectly plastic stiffness as well as the general bilinear hysteretic one has been already analysed elsewhere, the slip hesteretic system whose plastic stiffness has arbitrary magnitude is dealt with herein through the approach similar to that adopted in the previous cases. The important expressions thus obtained have been examined by the digital simulation. As the results, it has been found that the analytical solution of the R.M.S. displacement coincides with the corresponding experimental one with sufficient accuracy, and that the theoretical R.M.S. plastic deformation gives the good information about its general tendency, although it does not always bring about the satisfactory quantative prediction in a strict sense. In addition, it has been concluded that the theoretical values of the expected accumulated plastic deformation agree quite well with the simulated ones over the wide ranges of related parameters.
View full abstract
-
GI HONG, HISASHI TANAKA
Article type: Article
1978 Volume 270 Pages
99-103
Published: August 30, 1978
Released on J-STAGE: August 22, 2017
JOURNAL
FREE ACCESS
A new analytical technique is presented for the estimation of probability distribution of hysteretic energy dissipation for the stationary response of bi-linear hysteretic single-degree-of-freedom system subjected to white noise excitation, and they are compared with the results by Monte-Carlo simulations.
View full abstract
-
MASAMICHI ENAI
Article type: Article
1978 Volume 270 Pages
105-109
Published: August 30, 1978
Released on J-STAGE: August 22, 2017
JOURNAL
FREE ACCESS
In this report, the author discussed a numerical method and turbulent kinematic viscosity for the computation of two-dimensional buoyant circulation in a heated medium-sized test room. In the first half, the difference equations are introducd for the transport equations of vorticity and temperature, and in the case of the equation of continuity, the band matrix equation is adopted for the stream function. As this numerical method is for the analysis of the averaged tnrbulent air flow in the heated room, the distribution of turbulent kinematic viscosity must be measured at certian points in the turbulent air circulation. This method would make it possible to save the computing time and memory, and to check the divergence of the solutions under the non-linear and time dependent calculation. And in the latter half, the following results are referred to the turblent air flow in the heated test room. By using the scale of vorticity 〓 and mean velocity u at a certain point, turbulent kinematic viscosity K_T can be expressed by the next equation. K_T∝〓・|u|
View full abstract
-
TOHRU MOCHIDA
Article type: Article
1978 Volume 270 Pages
111-116
Published: August 30, 1978
Released on J-STAGE: August 22, 2017
JOURNAL
FREE ACCESS
Kata thermometer invented by L. Hill as a man's thermal model has nowadays been used as an excellent anemometer especially useful for low air motion. In the present study, the Kata's convective and the radiative heat transfer coefficients in the formula for calculating air motion are analized on the basis of heat transfer theory. It is pointed out that the value of air movement obtained from Kata thermometer contains errors, when applying the calculating formula, which is derived based on Newton's cooling law, in the environment where air temperature is not equal to radiant temperature. An approach to measuring air movement and radiant temperature is proposed, by using both dry and wet Kata thermometers.
View full abstract
-
JADATOSHI SOH, TAKAMASA MIYAZAKI
Article type: Article
1978 Volume 270 Pages
117-125
Published: August 30, 1978
Released on J-STAGE: August 22, 2017
JOURNAL
FREE ACCESS
In this study we considered the conditions and regional structures that exists in various forms in the fishing villages, where production basis relys on the marine products industry, which is the main work of the regional inhabitants. We also considered the problems that being occured in the coastal regions, the arrangements of various movements in transitional prosess, the constitution of village units based on the adjustmant and preservation plan, mutual hierarchy and composite influence on territorial formation of the coastal region. Based onthese premises, we throw light on the specific characters and the interrelationship on unito and territorial constructions and hierarchy structure of a villages. We comprehend and analyze the tupical regional transition and its effect of basic factors the inside and the outside of villags. We aim to take the basic data for the planning of villages in the coastal regions.
View full abstract
-
MASAKI KUSAKA
Article type: Article
1978 Volume 270 Pages
127-134
Published: August 30, 1978
Released on J-STAGE: August 22, 2017
JOURNAL
FREE ACCESS
Finding out any preservation program of cultivated lands in urban district and adjusting further urban growth into agreeable on is the aim of this study. Basing on its aim, this report deals with the changing processes of farmers' actions for the urbanization. Coming down to facts, we trended the changing processes of farmers' employment status, their cultivated land use and proverty forms at Morikawachi in Higashi osaka city and Ozone in Toyonaka city.
View full abstract
-
NORIKUNI KIMURA
Article type: Article
1978 Volume 270 Pages
135-142
Published: August 30, 1978
Released on J-STAGE: August 22, 2017
JOURNAL
FREE ACCESS
This paper is the first half of the thesis 'On "Waga Yado". So the author will present the synopsis of the whole thesis in the next issue of "Transaction of A.I.J." in which the latter half of the thesis will be published.
View full abstract
-
HIROYUKI SUZUKI
Article type: Article
1978 Volume 270 Pages
143-149
Published: August 30, 1978
Released on J-STAGE: August 22, 2017
JOURNAL
FREE ACCESS
Many scholars are interested in the problem how the nineteenth century Victorian Gothic transfigured into International Modern style of 1920s. There are two ways of approach to make clear the process of the change. One is to go back into the origin of the International Modern, and the other is to trace the changing ideas of the Victorian Gothic itself. Here, it is intended to make clear theories on architectural styles at the final phase of the Victorian Gothic in England, especially the theory and practice of the "Queen Anne" style. In this first part, interpretations of the "Queen Anne" by contemporary architectual historians and architects, C. L. Eastlake and Sir G. G. Scott, as well as by modern historians like Sir John Betjeman, H. S. Goodhart-Rendel, J. Mordaunt-Crook, M. Seaborne, R. Maclead and M. Girouard are examined, so as to enable to look into works of the Queen Anne architects of the late nineteenth century.
View full abstract
-
[in Japanese]
Article type: Article
1978 Volume 270 Pages
151-152
Published: August 30, 1978
Released on J-STAGE: August 22, 2017
JOURNAL
FREE ACCESS
-
[in Japanese], [in Japanese]
Article type: Article
1978 Volume 270 Pages
152-153
Published: August 30, 1978
Released on J-STAGE: August 22, 2017
JOURNAL
FREE ACCESS
-
Article type: Bibliography
1978 Volume 270 Pages
153-
Published: August 30, 1978
Released on J-STAGE: August 22, 2017
JOURNAL
FREE ACCESS
-
[in Japanese]
Article type: Article
1978 Volume 270 Pages
154-155
Published: August 30, 1978
Released on J-STAGE: August 22, 2017
JOURNAL
FREE ACCESS
-
[in Japanese]
Article type: Article
1978 Volume 270 Pages
155-157
Published: August 30, 1978
Released on J-STAGE: August 22, 2017
JOURNAL
FREE ACCESS
