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Article type: Cover
1977 Volume 253 Pages
Cover1-
Published: March 30, 1977
Released on J-STAGE: August 22, 2017
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Article type: Cover
1977 Volume 253 Pages
Cover2-
Published: March 30, 1977
Released on J-STAGE: August 22, 2017
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Article type: Appendix
1977 Volume 253 Pages
App1-
Published: March 30, 1977
Released on J-STAGE: August 22, 2017
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Article type: Index
1977 Volume 253 Pages
Toc1-
Published: March 30, 1977
Released on J-STAGE: August 22, 2017
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Article type: Appendix
1977 Volume 253 Pages
App2-
Published: March 30, 1977
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SHIGERU WAKAYAMA, MICHIO KAWANOBE, NORIO INOUE
Article type: Article
1977 Volume 253 Pages
1-7
Published: March 30, 1977
Released on J-STAGE: August 22, 2017
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The process of the production of PC-component at factory was analysed in the former reports, in this number five report the process of the erection at site is analysed. According to the result of memo-motion work study, the standard working time and man-hours on each component positions are settled, and the relationship between man-hours and component elements which are the position, the floor lebel, the size and the form is studied by multiple regression analysis. After that, the category and the method of the production analysis is studied theoreticaly again.
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TSUNEO IWASHITA
Article type: Article
1977 Volume 253 Pages
9-16
Published: March 30, 1977
Released on J-STAGE: August 22, 2017
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This paper presents a new technique of numerical analysis for the framed structures with shear walls and slabs. The principle of the technique is based on the displacement method of the stiffness matrix analysis. The stiffness matrix of a column can be obtained by the general procedure. The framed wall is idealized to be a single structural member which has four nodal points at the corners of boundary frames of wall. Each nodal point has six displacement components (u, v, w, θ_x, θ_y, θ_z). The stiffness matrix of the framed wall can be derived by the finite element method as the solutions of the simple problems of the forced displacement at the nodal point. The stiffness matrix of a slab is equivalent to that of the wall because the slab can be considered to be the wall which is placed horizontally. By summarizing the stiffness matrices of all members, the stiffness matrix of the full structure can be derived. So the solutions under the given boundary conditions can be obtained. Comparing the calculated results by this technique with the one by the finite element method for a few types of structures and also with the experimental results for shear walls, good agreements have been obtained, so that, in conclusion, this technique can be used for the analysis of two- or three-dimensional framed structures with shear walls and slabs under the arbitrary forces.
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MORIHISA FUJIMOTO, HIROFUMI AOKI, SHIRO KITAWAKI
Article type: Article
1977 Volume 253 Pages
17-29
Published: March 30, 1977
Released on J-STAGE: August 22, 2017
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NOBUYUKI SHIMIZU, SHIZUO YAMAMOTO, YOSHIHIKO KOORI
Article type: Article
1977 Volume 253 Pages
31-43
Published: March 30, 1977
Released on J-STAGE: August 22, 2017
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A computational method of the three-dimensional dynamic analysis of soil-structure system are studied. This is based on the Thin Layer Elemenet Method, the semi-analytical Finite Element Method, in the cylindrical coordinates.
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YUTAKA MATSUSHIMA
Article type: Article
1977 Volume 253 Pages
45-50
Published: March 30, 1977
Released on J-STAGE: August 22, 2017
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The movement of ground surface during an earthquake will not be identical even in relatively limited plane, but possible to have spatial variation. According to the reference 1), the mathematical form of the cross spectral density function between ground motions, where the statistic correlation decreases in an exponential manner as the distance increases, can be regarded as the most realistic idealization. The purpose of the paper is to investigate theoretically the stochastic response of the structure subjected to multiple excitations which have the above-mentioned characteristic. The paper mainly consists of the following contents. At first the system, where a rigid slab is supported by a lot of columns, the bottom ends of which are subjected to horizontal multiple inputs, is supposed, and then the frequency response functions of the absolute acceleration of a rigid slab and of the relative displacement of columns are mathematically derived. Next the stochastic response quantities are analytically evaluated in a frequency domain in case that ground motions are assumed to be band limited white noises with spatial variation. Finally the response values due to two different noises given concretely as the simulation of typical earthquake motions are numerically estimated as examples. In conclusion the essential point of the paper lies in the fact that the spatial variation of excitations is possible to have a great ifluence upon the response of structures.
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KOICHIRO HEKI, KUNIKAZU YAMANAKA, HIROMI KITANO
Article type: Article
1977 Volume 253 Pages
51-57
Published: March 30, 1977
Released on J-STAGE: August 22, 2017
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To grasp the structural characteristics of tall multi-storey buildings subjected to lateral loads, a method of approximate analysis is proposed treating them as bar-like continuum structures which deformed under the action of not only shearing and bending but also warpng. By this method, tall wall-frame structures, such as frames with core wall and coupled shear walls, can be analyzed. The warping deformation gives more effect on the displacement at the top of core wall structures than those by bending and shearing deformation in many cases. The restriction of warping at the top increases the lateral rigidity of core wall structures. It has shown in examples that the calculated results are good approximation and the computing times are remarkably decreased by this method, comparing with the exact discrete analysis method. This method may be useful for preliminary design.
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HARUJI TSUBOTA, MAKOTO AIZAWA
Article type: Article
1977 Volume 253 Pages
59-67
Published: March 30, 1977
Released on J-STAGE: August 22, 2017
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Following two kinds of analysis are essential to establish a theoretical erection system of cable net structures; 1) analysis for obtaining the normal ercetion state defined by excluding all imaginable errors arising in erection process 2) analysis for eliminating actual errors which deviate from this normal state. First of all, this paper presents the analytical method for calculating the normal erection state. Concretely, the cable tensions to be prestressed are selected as the main control parameter and these cable tensions are calculated successively according to the sequence of placing cables. In this analysis the unstrained length of cables or members is considered to be the known parameter and the geometrical shape of net surface and tension distribution are obtained from equilibrium equations at free nodes and compatibility equations of cables length. Furthermore, not only the usual analysis of clamped nodes type where the cables intersections are clamped but also the analysis of sliding nodes type where the cables intersections are able to slip against each other are developed in this paper. These two types of analysis are illustrated and compared by the example of H.P. type cable net structures. Finally, from this analysis we can certify a safety of erection procedure and specify a sequence of placing cables to avoid overstressing the supporting structures.
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KOHJI SUMINO, KIYOSHI AKIZUKI
Article type: Article
1977 Volume 253 Pages
69-79
Published: March 30, 1977
Released on J-STAGE: August 22, 2017
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Axisymmetrical snap buckling behavior of elastic clamped shallow spherical shells.-perfect and with axisymmetric initial imperfections-, are studied. An analysis has been treated by employing the Galerkin method based on the governing nonlinear differential equations with respect to meridional and normal displacements u, w and numerical results obtained here, are compared with those of previous analytical and experimental studies. Briefly speaking of a remarkable point, it is found that the snap buckling pressures are almost lower than Linear classical buckling pressure in the ranges of high waviness deformation modes.
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AKIHIKO MIYANO, SADANORI KOBAYASHI
Article type: Article
1977 Volume 253 Pages
81-89
Published: March 30, 1977
Released on J-STAGE: August 22, 2017
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This paper concerns the errors involved in measuring surface temperature by sticking a thermocouple on the surface of building materials or building walls. The main causes of the errors are as follows : (1) the radiation character of sticking materials; (2) the heat conductivity of sticking materials; (3) the heat conductivity of a thermocouple. The results of our experiments show i) that it is desirable to make the width of sticking materials as short as possible because the sticking materials disturb the distribution of surface temperature, ii) that when the sticking length of a thermocouple is 100 to 150 times the diameter of the thermocouple, the measurement value is almost constant, and iii) that the heat character of measurement objects, that of sticking materials, wind, and radiation have a considerable effect on the measurement temperature. Thus we have obtained a better measuring method of reducing the errors.
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TETSUMI HORIKOSHI, YOTARO KOBAYASHI
Article type: Article
1977 Volume 253 Pages
91-102
Published: March 30, 1977
Released on J-STAGE: August 22, 2017
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When the human body is assumed to be a rectangular solid (0.4m×0.2m×1.2m), configuration factors between the rectangular solid and a rectangular plane are obtained by numerical calculation. These results are illustrated in charts, and examples of their application are shown. Comparison of the above-mentioned configuration factors with others for the human body and equivalent simple solid models, or configuration factors between each plane α, β and γ of the rectangular solid R and a rectangular plane δ, will be presented by the authors in following papers.
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SABURO MURAKAWA
Article type: Article
1977 Volume 253 Pages
103-112
Published: March 30, 1977
Released on J-STAGE: August 22, 2017
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This paper is described the probabilities of simultaneous uses and the calculation results of water load. The probabilities of simultaneous uses are analysed with the Monte Carlo Simulation and the results of the investigations. Based on these analysed results, the distributions of the probabilities are shown in the poisson distributions. And using the above results and basic deta, the following calculation results are shown and analysed. 1. The number of simultaneous uses of water in variable uses. 2. The number of sanitary fixtures to install in the buildings. 3. Water flow rates of simultaneous uses. 4. Water flow rates of consumption per hour in variable uses.
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KUNIO TAKAMIZAWA
Article type: Article
1977 Volume 253 Pages
113-120
Published: March 30, 1977
Released on J-STAGE: August 22, 2017
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This paper is primarily concerned with the renewal process of housing and housing sites in the urban residential areas. The areas surveyed are apparently considered to have desirable environments, but the urban renewal plans now under way have come to raise possibilities that may deteriorate the housing conditions there. The purpose of this study is to find the main factors involved in such urban renewal process. The researches on which this paper is based were conducted in Meguro and Setagaya Wards, which are typical of urban housing areas in Tokyo, and cover the periods 1962-1971 and 1969-1974 respectively. The findings obtained may be summarized as follows : (1) Housing reconstruction and land subdivision are the two factors that can be witnessed on an extensive scale in the areas surveyed. (2) The subdivision of housing sites and the increase in the number of apartment buildings in the areas covered have combined to deteriorate the housing conditions there. (3) The inhabitants in the areas concerned have shown a negative attitude toward the projected changes of environment.
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SHINGO TAMAKI, TAKESHI KANEKI
Article type: Article
1977 Volume 253 Pages
121-132
Published: March 30, 1977
Released on J-STAGE: August 22, 2017
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This report deals with the reason why dwellers have selected public housing, and the extent to which their living conditions have been improved by moving to public housing. The conclusions are as follows; 1) The level of living conditions of applicants for public housing has been improving slowly. The area of living space of applicants varies with the regions. It is higher in a provincial city than in a metropolis, which is a reflection of regional housing conditions. 2) In a metropolis, public housing dwellers have selected their present houses because their rents are lower. On the other hand, in a middle-sized city or a rural town, the reasons for their moving to public housing have been mainly because of marriage and occupational needs. 3) The low house rent is the major advantage which dwellers consider of public housing. More than a half of them appreciate its low rents. On the other hand, the dwellers who appreciate the living floor space of public housing are many in a metropolis, but few in a rural town. 4) That is, many dwellers have acquired better living conditions in comparison with their former by moving to public housing in a metropolis, but only a few in a provincial city or in a rural town. 5) Accordingly, the length the residents keep on living in public housing is longer in a metropolis and a industrial city than in a provincial city or a rural town.
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TORU HATSUDA
Article type: Article
1977 Volume 253 Pages
133-140
Published: March 30, 1977
Released on J-STAGE: August 22, 2017
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The objective of this study is to show historical characters of the Mitsui-gumi House at Kaiun-bashi that mixed the European style with the Japanese style in the early Meiji Era. The early Meiji Era was times when Japanese encountered European civilization and advanced European technology. A summary will be given as follows; 1) The House was built in 1872 as a social status symbol of the Mitsui-gumi. 2) The House had mixed styles : one copying the European style and another copying the Japanese style of the feudal times. 3) The owner meant to use the European style for the House, which would bring prosperity to him. 4) The owner used positively the Yatsumune-Zukuri for the roof of the House that was an element of Japanese castles in the feudal times.
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TETSUO TAMAI
Article type: Article
1977 Volume 253 Pages
141-148
Published: March 30, 1977
Released on J-STAGE: August 22, 2017
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1. Regional Distribution of Kokenkin (Price of the Residential Areas for Townsmen) 2. Chronological Change of Kokekin. 3. Rise of Kokenkin in the Genroku Era.
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