-
Article type: Cover
1979 Volume 276 Pages
Cover1-
Published: February 28, 1979
Released on J-STAGE: August 22, 2017
JOURNAL
FREE ACCESS
-
Article type: Cover
1979 Volume 276 Pages
Cover2-
Published: February 28, 1979
Released on J-STAGE: August 22, 2017
JOURNAL
FREE ACCESS
-
Article type: Appendix
1979 Volume 276 Pages
App1-
Published: February 28, 1979
Released on J-STAGE: August 22, 2017
JOURNAL
FREE ACCESS
-
Article type: Index
1979 Volume 276 Pages
Toc1-
Published: February 28, 1979
Released on J-STAGE: August 22, 2017
JOURNAL
FREE ACCESS
-
Article type: Appendix
1979 Volume 276 Pages
App2-
Published: February 28, 1979
Released on J-STAGE: August 22, 2017
JOURNAL
FREE ACCESS
-
JUN SHIINO
Article type: Article
1979 Volume 276 Pages
1-7
Published: February 28, 1979
Released on J-STAGE: August 22, 2017
JOURNAL
FREE ACCESS
This paper describes statistic analysis of time schedule of separate works for construction of prefabricated apartment houses of five stories. Standardized thirty-one works of the network frame of fourty-six projects were investigated, and the results obtained are as follows : (1) Linear relationship between construction period and the number of housing units or the number of buildings was observed. (2) A statistical linear model was established, and a regression equation was obtained for estimating time schedule of separate works by employing these as decision variables. (3) From this equation, a calculating diagram which enables predicting time schedule from insufficient information obtained at the stage of expecting an order was drawn.
View full abstract
-
SEIJI TESHIGAWARA, OSAMU MATSUOKA
Article type: Article
1979 Volume 276 Pages
9-16
Published: February 28, 1979
Released on J-STAGE: August 22, 2017
JOURNAL
FREE ACCESS
This paper is concerned with the solution of Cerruti's problem for a transversely-isotropy. This problem can be solved by superposition of foundamental solution and three solutions obtained by synthesis of nuclei of strain, which are obtained by partial differentiating equations (1-39), (2-1) with respect to x and operating [numerical formula] on equation (1-41). This solution shows the same inclination to Bussinesq's problem. The maximum stress appears in the 45°-direction to the xz axes in the plane. And stress and displacement show the following properties. The shear rigidity has larger effects on it than the rigidity in the z axes direction. On the four thesisses we are solved Boussinesq's and Cerruti's problem for a transversely-isotropy by synthesis of foundamental solutions which are obtained by using Fourier transform method.
View full abstract
-
BEN KATO, HIROSHI AKIYAMA, TETSURO INOUE
Article type: Article
1979 Volume 276 Pages
17-25
Published: February 28, 1979
Released on J-STAGE: August 22, 2017
JOURNAL
FREE ACCESS
Load-Deflection characteristics of H-shaped steel beams built up by welding as designed on the basis of the current allowable stress design specification were studied. In this experiment 14 pairs of portal frame connected with side beams were used. The behavior of the parallel main beams were observed up to their collapse state. Dimensions of main beams covered large variety of sectional shapes, slenderness and supporting conditions. In these specimens the width-to-thickness ratios of the web lied between 45 and 80, and the slenderness of the flange lied between 100 and 200. The result of the test is summarized as the followings. (1) The deformation capacity of beams restrained only by sub beams ranged from 1.0 to 2.3. (2) The deformation capacity of beams restrained only by slabs ranged from 1.5 to 3.5. (3) The deformation capacity was fairly improved by stiffening web against local buckling. Especially combined with restraint by slabs, the stiffening effect was considerable, and the deformation capacity could reach about 4.0. (4) Effects of end fixity provided by side beams on load-deflection characteristics was not obvious, and it was observed that even hinged connection of side beams can provide fairly large restraint on the stability of the main beam.
View full abstract
-
MORIHISA FUJIMOTO, NOBUHIRO SATOH, NOBUKADO MATSUTSUKA
Article type: Article
1979 Volume 276 Pages
27-32
Published: February 28, 1979
Released on J-STAGE: August 22, 2017
JOURNAL
FREE ACCESS
An approximate analysis of the strain concentration of the beam flange near the joint to the column flange at beam-to-column connections in steel structure is presented. The application of this analysis to the beam-to-column connection of which column has a heavy section and an H-shape cross section. The analysis is upon the incremental theory. Hence, strain is calculated by the integration along the loading pass. An elastic incremental strain is calculated on the geometrical condition and a plastic incremental strain is calculated on the geometrical condition, material condition and load hysteretic condition. The accurecy of the analysis was verified by the comparison of the calculated results with the experimental results.
View full abstract
-
TAKESHI UCHIYAMA, MASAIKI UEDA, YOSHIZO DOBASHI
Article type: Article
1979 Volume 276 Pages
33-41
Published: February 28, 1979
Released on J-STAGE: August 22, 2017
JOURNAL
FREE ACCESS
This report is descriptive of the elasto-plastic finite element analysis of reinforced concrete floor slabs using laminated elements. The accuracy of the solutions is reasonably maintained in comparison with the result of testloading of several slab models cast monolithically with massive supports at their edges.
View full abstract
-
TAKEO NAKA, KOJI MORITA, MASAHIKO TACHIBANA
Article type: Article
1979 Volume 276 Pages
43-51
Published: February 28, 1979
Released on J-STAGE: August 22, 2017
JOURNAL
FREE ACCESS
Following remarks are attained by beam-column tests of SRC columns whose steel element is pin-connected by anchor bolts at base. 1) Steel element and reinforced concrete element which compose SRC column work in a body until the flexural crack occur at base of column, but they work separately thereafter. 2) The inflection points of steel element and concrete element coincide approximately until the maximum strength of SRC columns. 3) The flexural cracking strength at the bese of column can be estimated by Eq. (1) by considering the model shwon in Fig.7, and the shear cracking strength at the base of column can also be estimated by Eq. (4) as well as Reinforced Concrete columns. 4) The flexural yield and maximum strength of the base of SRC columns can be estimated by considering the section shwon in Fig. 7 with the theory based on the Navier's assumption. The superposed flexural strength somewhat overestimates the flexural yield strength, but can estimate the flexural maximum strength.
View full abstract
-
YUTAKA MATSUSHIMA
Article type: Article
1979 Volume 276 Pages
53-58
Published: February 28, 1979
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 "general slip" hysteresis, when subjected to the Gaussian white excitation. The expressions presented herein cover those obtained in the previous papers as to the bilinear and the "pure slip" characteristics, since both restoring forces are two extreme cases of the "general slip" hysteresis. The theoretical expressions have been examined by the digital simulation. As the results, the analytical solution of R.M.S. displacement has coincided with the corresponding experimental one with sufficient accuracy except when either the input intensity is quite low or the plastic stiffness ratio is close to unity. The theoretical R.M.S. plastic deformations have been in good agreement with simulation estimates excluding the cases where either the input intensity or the plastic stiffness ratio is close to zero. The theoretical values of the expected accumulated plastic deformation have agreed quite well with simulated ones over the wide ranges of related parameters. In addition, it has been verified that the response of the system where both the bilinear and the "pure slip" hysteresis loops are mixed together can be well predicted by the solution of the equivalent "general slip" characteristic.
View full abstract
-
YOUICHI MINAKAWA
Article type: Article
1979 Volume 276 Pages
59-67
Published: February 28, 1979
Released on J-STAGE: August 22, 2017
JOURNAL
FREE ACCESS
Nonlinear vibration problems are reviewed in their aspect of their phenomenon and their basic nonlinear equations of motion. Many papers which deal with nonlinear vibrations in elastic systems depend on the Duffing equation or the Mathieu-Hill equation. But they do not include the general nonlinear equations of motion obtained by considering the finite deformation theory in elasticity, because the Duffing equation corresponds to the system which nonlinear springs are monotone functions of displacement and the Mathieu-Hill equation is the approximate equation derived by assuming separate variables. Then if we adopt the general nonlinear equations of motion as the basic equation for nonlinear vibrations, the treatment of nonlinear vibration problems is unified. In order to classify nonlinear vibrations it is necessary to grasp the global feature of unkowns in algebraic equations. The local feature of them have been precisely studied in the static nonlinear stability problems. Then applying the theory we construct the classification of the unkowns in algebraic equation and a global definition of the symmetric bifurcation.
View full abstract
-
KIYOSHI MUTO, TOSHIO KOBAYASHI
Article type: Article
1979 Volume 276 Pages
69-77
Published: February 28, 1979
Released on J-STAGE: August 22, 2017
JOURNAL
FREE ACCESS
-
NOBUSUKE SAKATA, TAKUMASA YOSHIDA, HISAO TOKUYAMA, CHIAKI HARUTA, TORU ...
Article type: Article
1979 Volume 276 Pages
79-86
Published: February 28, 1979
Released on J-STAGE: August 22, 2017
JOURNAL
FREE ACCESS
Usually we use the percentage Articulation (Ar) to estimate the noise effect on the transmission of articulated syllables in noise field, and by using this Ar. we have discussed the effect only from the speaker's angle. But by analyzing the distribution characteristics of misheard syllables we can perform the quantitative analysis of the hearing efforts made by receivers in anechoic room in the Articulation tests. In this paper we discribe the transmission characteristics in view point of receivers by using information loss (H_i(j)) in noise field, and resultedin simple relation between (Ar) and (H_i(j)). That is (H_i(j))=m-m'(Ar)/(100) But this relation is available only in Octave Band noise field (centre frequency : 125, 250, …, 8k (Hz). In general case, we cannot use the relation because of the complexity of frequency characteristics of noise in actual life.
View full abstract
-
TATSUO OKA
Article type: Article
1979 Volume 276 Pages
87-93
Published: February 28, 1979
Released on J-STAGE: August 22, 2017
JOURNAL
FREE ACCESS
The results of observations of the heat island effect in Lund, Sweden, and comparisons of observed and calculated temperature are described. The horizontal and vertical temperature distributions are observed with automobile-mounted thermo-couples and a wire sonde. The results may be summarized as follows. 1. Lapse rates in rural are approximately proportional to those in urban, however the lapse rates in urban are almost neutral compared with those in rural. 2. Heat island intensities (⊿t_<u-r>) are approximately proportional to lapse rates in rural. 3. The highest temperatures are in fairly good agreement with predicted temperatures by Summer's model, however coincidences of the temperature distributions are not in good. 4. Calculated temperature distributions by the numerical method described previously are in good agreement with the observed results, where KEYPS Foumula is used to calculate distributions of wind velocity and eddy diffusivity. The correlation coefficients between calculated and observed temperatures are from 0.82 to 0.88.
View full abstract
-
MASAJI KANESHIMA, ICHIYA HAYAKAWA
Article type: Article
1979 Volume 276 Pages
95-103
Published: February 28, 1979
Released on J-STAGE: August 22, 2017
JOURNAL
FREE ACCESS
Thermal load of District Cooling and Heating was considered as an unconfirmed phenomenon. Thermal load was constituted of two phases. These were Short range fluctuating load in one week and Long range fluctuating load in one season. In this paper Short range fluctuating load was studied using the actual hourly operating data of one week in summer and winter to each building at Sapporo D. C. H. Plant. Consequently the concept of the diversity factor was obtained using the normal distribution curve for the fluctuating thermal load of each building. Furthermore, the proper thermal load of the piping network was gotten with multiplying the sum of each building's maximum hourly thermal load by the diversity factor of each pipe.
View full abstract
-
AKIHIKO WATANABE
Article type: Article
1979 Volume 276 Pages
105-114
Published: February 28, 1979
Released on J-STAGE: August 22, 2017
JOURNAL
FREE ACCESS
(1) Aim of this study. (2) Analysis of other theses. (3) Method and time of this investigation. (4) Way of calculation of utilization-rate by 'Parcelled Directional Districts'. (5) Main flow in peoples every day life in each districts Road system in each districts. Traffic system to each facilities. (6) Analysis of utilization-rate by parcelled directional districts-analysis by considering the distance to each facilities. (7) Analysis of the diagram about graded utilization-rate by graded distance. (8) General trend of utilization-rate by 'Parcelled Directional Districts'. I classify the next three areas. <I> Egg-shape area : high utilization-rate area because of being the facilityin theflow in people's every day life (ex. flow to the station, flow to the shopping area, etc.). <II> High utilization-rate caused by the traffic convenience (ex. roads, railways, etc.). <III> Round shape area being out of relation to the direction.
View full abstract
-
MASAKI KATAOKA, YOSHITOMO MURAKAMI
Article type: Article
1979 Volume 276 Pages
115-122
Published: February 28, 1979
Released on J-STAGE: August 22, 2017
JOURNAL
FREE ACCESS
The conclusion in a series of those reports is that the dwelling unit for the wheelchair user and the bedfast must be the one which built for the public housing designed for the handicapped. Main parts of the guide to plan the dwelling unit are as follows : For the Wheelchair User (1) The space that the wheelchair user is able to drive must be extended. (2) A Western room at least must be prepared in addition the (L) DK. (3) Each room must be able to be approached by the wheelchair user, but to pass through the other room must not be permitted. A room passed through must not be permitted to set (4) Two routes to a safe place must be secured in a unit. (5) The (L) DK should be connected with an adjecent room on the south side. (6) An isolated room should be secured in a unit. For the Bedfast Use (1) The room arrangement must be planned for the handicapped in order to take part in meals and a happy home circle with their household. (2) The DK should be connected with an adjacent Japanese style room on the south side. (3) The distance from the south room to the kitchen must be shorten. (4) An isolated room should be secured in a unit, but the sleeping room for the handicapped should be maintained to be connected with the adjacent helper's room
View full abstract
-
NOBUKO OGAWA, JUNKO ISHII, SACHIKO SAITO
Article type: Article
1979 Volume 276 Pages
123-131
Published: February 28, 1979
Released on J-STAGE: August 22, 2017
JOURNAL
FREE ACCESS
The report is a second part of the series work about nursery school planning, and here we would like to advance our study on the space separation. We have surveyed 6 facilities in Tokyo and examined whole day activities on each place. The main results from our reserches are following; 1) The activities of infants and babies are differnt Basic flow of daily activities of both infants and babies is FreePlay (it is not arranged under the specific guidances by staff)-Care with a Certain Intention (for instance, drawing, singing, gymnastics etc.)-Feeding-Dressing-Nap-Dressing-Feeding-Free-Play. These activities are overlaped a little and this phenomina is much more evident on babies' activities. Babies take highter rate of time for Feeding, Nap and Dressing comparing with infants, and infants spend their time with a Care of Certain Intention longer than babies. As for relations between children and staffs, babies' is completely different from infants'. Babies require individual contact and infants prefer to contact in the group. These differncese come from alternative steps of child's development mentally and physically. 2) No separation of spaces Almost every kinds of activities of both infants and babies are done at one nurseryroom. It causes confusions of space utelization, because several kinds of activitices have to be done in one room. The worst condition appears at the changing point of activies, for instance, from Feeding to Nap, from Nap to Dressing.
View full abstract
-
MOTOO ANDO
Article type: Article
1979 Volume 276 Pages
133-145
Published: February 28, 1979
Released on J-STAGE: August 22, 2017
JOURNAL
FREE ACCESS
The purpose of this paper is to appraise the local law of the special industrial zone. The contents of this paper are as follows; (1) Introduction : The method to improve the environmental quality in areas. (2) Types of special industrial zone districts in Japan. (3) Types of the local law of the special industial zone (the mollifying type and the intensifying type of the restriction in this law). (4) The effect of this law.
View full abstract
-
REIJI OBASE
Article type: Article
1979 Volume 276 Pages
147-157
Published: February 28, 1979
Released on J-STAGE: August 22, 2017
JOURNAL
FREE ACCESS
In this study, I account for the following subject. In a cmmunity area (=neighbourhoods area), how the roads to be utilized by pedestrians, vehicles or playing children? (1) Pedestrians take the shortest route to their destination, even if the route is dangerous by vehicles. (2) The routes which pedestrians take, are not cut off by heavey traffic. (3) Heavey traffic way interrups the playing children form crossing it to go to playing place.
View full abstract
