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Article type: Cover
1982 Volume 313 Pages
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Published: March 30, 1982
Released on J-STAGE: August 22, 2017
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Article type: Cover
1982 Volume 313 Pages
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Published: March 30, 1982
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Article type: Index
1982 Volume 313 Pages
Toc1-
Published: March 30, 1982
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Article type: Appendix
1982 Volume 313 Pages
App1-
Published: March 30, 1982
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TOYOKAZU SHIIRE, SHIGEO CHINO
Article type: Article
1982 Volume 313 Pages
1-11
Published: March 30, 1982
Released on J-STAGE: August 22, 2017
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In the present investigation, the proctor penetration resistance of the concrete was studied by the following method of ASTM C 403. According to the above results, we considered the influnece of temperature on the setting and the hardening of cement concrete. The results of the preesnnt investigation have been interpreted as showing that the setting and the hardening of the cenent concrete are especially dependent on the curing temperature, among the temperature of making materials, the mixing temperature and the curing temperature, and impeded, when the mixing temperature or the temperature during the soculled dormant period of the cement hydration is higher.
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MICHIO KOIKE
Article type: Article
1982 Volume 313 Pages
12-18
Published: March 30, 1982
Released on J-STAGE: August 22, 2017
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Twelve kinds of two-part polyurethanes for roof and waterproof coating for building were experimentally produced controlling the ratios of amine/polyol-equivalents in the curing agents (Table 1), and examined of their movement capability during cure. They were applied on polypropylene substrates bridging butt joints at the center of the substrates, and, at the appropriate lapses of curing time at 20℃, the joints were opened to the shape of wedge by inserting spacing pieces of 0.5mm thickness in one end of the joints. The membranes thus formed and subjected to joint-opening were removed from the substrates after being cured and inspected of their failures (Fig. 3). The polyurethanes cured by amine-rich curing agents ruptured by joint-opening after several hours of age (Fig. 4). The characteristics of the polyurethanes during cure were also investigated by the drying recorder and the T. B. A., significant information relating movement capability, however, was not obtained from the results of them (Figs. 1 and 2). Next, the polyurethanes were applied on substrates of asbestos cement board and conducted by the same procedure as mentioned above, except the joints were opened to 0.5mm width in parallel. The membranes adhering on the substrates were inspected after cured for seven days at 20℃, and those without visual failure were evaluated of their movement capability by "expanding joint" and "cyclic opening/closing joint" (Tables 2 and 3). Finally, six types of reinforcing fabrics (Fig. 5 and Tables 4 and 5) were examined of their ability to prevent failures of the polyurethane during cure which showed one of the worst results in the previous examinations. Two types of the fabrics entirely prevented failures and the others improved the membrane to a little extent (Fig. 6), and the membranes without failure were evaluated by "expanding joint" (Table 6).
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Kozo WAKIYAMA, Akio TATSUMI
Article type: Article
1982 Volume 313 Pages
19-29
Published: March 30, 1982
Released on J-STAGE: August 22, 2017
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KIYOSHI KANETA, ISAO KOHZU
Article type: Article
1982 Volume 313 Pages
30-38
Published: March 30, 1982
Released on J-STAGE: August 22, 2017
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This experiment was carried out in order to examine cyclic inelastic actions and low-cycle fatigue properties of welded joints of steel structures. Base metals which consisted of mild to high tensile strength steel, namely, SS41 to HT80, were used. The welded joints were made by means of various kinds of butt welding processes. These base metals and the welded joints were fabricated and shaped into cylindrical specimens, and loaded cyclically by an uniaxial tension-compression method, to the point where the specimens were fractured. No significant differences between the base metal and the welded joint were observed at the steady-states. However, as for fatigue strength, some deterioration was observed at the lower cycles with regard to the welded joints of the base metals whose monotonic tensile strength is relatively high. New quantitative estimations with respect to energy absorption capacity and low-cycle fatigue strength deterioration are also proposed herein.
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AKIRA MATSUO, YOSHIRO MUKUDAI
Article type: Article
1982 Volume 313 Pages
39-47
Published: March 30, 1982
Released on J-STAGE: August 22, 2017
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A new elastic plastic analysis based on the hybrid type Hellinger-Reissner's principle is extended to geometrically nonlinear analysis. This analysis is applied to dynamic response analysis of multi-storied frames. And the conclusions are obtained as follows. 1) This analysis is efficient enough to study the behavior of multi-storied frames. 2) Dynamic response of strain at the end of the beam is quite dependent upon mechanical properties of materials. 3) The influence of existence of vertical load on the beam is quite small to the response of inter-story displacement and nodal rotation, but it is quite large to the response of strain at the end of the beam. And if vertical load parameter κ on the beam is greater than 0.35, this local strain may accumulate. 4) Vertical motion of earthquake sometimes promotes accumulation of this local strain of the beam.
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YASUYUKI ARAI, TAKUJI SHIBATA
Article type: Article
1982 Volume 313 Pages
48-57
Published: March 30, 1982
Released on J-STAGE: August 22, 2017
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The shear walls with a U or L shaped section are commonly employed in building structures to resist the lateral forces imposed by earthquakes. In this paper, the three dimensional analysis of open-section shear walls included in frames is presented. The main features of the proposed theory are as follows; 1) The each plane walls which forms a non-planar shear wall is devided at each floors, and its wall elements have only in-plane stiffness and torsional stiffness. A beam theory is applied to the wall elements, but the expansion and contraction force which is contrived for the first time in this paper is existing on the edge of the wall elements. 2) A direction of the shearing stresses is taken into account as to the shearing stiffness of the wall elements. The proposed method of analysis appears to result in fairly good estimations of both deflection and plane stress in comparison with existing experimental test results.
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TOSHIO MAEDA, YASUAKI NAKAZAWA
Article type: Article
1982 Volume 313 Pages
58-66
Published: March 30, 1982
Released on J-STAGE: August 22, 2017
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A method to compose the expression of the transfer function of multi-layer wall is presented. The method depends on newly constituted matrices, containing Hadamard matrix, and the procedure to decide the expression of the function is as follows. i) Constituting matrices : Matrices are constituted by simple rules presented in this paper. ii) Forming the transfer function : The expression of the function is decided by means of matrix-products. In accordance with the above procedure, we can decide the expression of the function not only by hand calculation but also by using computer.
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Masahiko Araki, Shunsuke Hukushima, Tadao Sugimoto
Article type: Article
1982 Volume 313 Pages
67-76
Published: March 30, 1982
Released on J-STAGE: August 22, 2017
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Architectural spaces such as station environment and underground paths which are concealed from the physical information of open air space such as rows and corners along the street, according to the restrictions caused by the functional requirements, building and street networks are getting complex and intensive. These spaces are required signs and marks shown in the sign boards and maps for guiding, conducting and positioning. Although signs and maps are expressing in many ways, signs by letters are most frequently used, because they show the contents most clearly. So important signs such as "EMERGENCY EXIT" are increasing in numbers in order to attract attention, and other information from advertisement also trace the same way of presentation. This causes the increase of both quality and quantity of signs. Accordingly visual perception forces the accepting of excess information, and the complexity of signs causes refusal and mistake. In this paper, from the functional aspect of visual search tasks, sign complexity in the station emvironment and the under ground paths were investigated. Based on the result of the previous report in which probability characters during visual search tasks were reported, the way visual sense reacts to the elements which constitute signs was analysed by the preliminary experiment, and as a result the fact that they react to the contrast between elements was introduced. So by hypothesizing the probability of variable, processing time which is the scale showing the difficult level of the tasks is argued. That is, first of all, physical elements of signs in the models (signs subtended angle, angle between horizontal line of sight to the center of environmental representation, the oriented angle of the surface of a sign, reciprocals of subtended angles between the center of a given sign and each of the center of all other signs) are measured. And with these measured scales, informatinal amounts of each element of signs are to be searched. Second, the theoretical model of the processing time based on the empirical model introduced by analysing the relation between experimental processing time and information are proposed. Also by the correlation analysis between order of fixation and theoretical processing time, the hypothesis of the probability of variables during search process is concluded to be well fitted to the visual search tasks.
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MASAO AOKI, TAKAKAZU TOMOKIYO
Article type: Article
1982 Volume 313 Pages
77-84
Published: March 30, 1982
Released on J-STAGE: August 22, 2017
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I. To form the net work of medical facilities around a joint use type hospital all the practitioners in the district should be organized. II. The desirable joint use type hospital for organized practitioners is having full-time and consultant medical staffs, and the adequate number of beds considering the demands of the district. The joint use type hospital should have the function of the open medical staff system hospital in U.S.A. and that of the community hospital in England. III. The following points are necessary for practitioners when they perform many operations in the joint use type hospital. 1) The full-time medical staff should participate in the operation as an operator or the assistant of a practitioners. 2) The practitioner who sent the patient should participate in his operation. 3) The time of the operation should be set considering the practitioner's schedule, as far as it is not urgent.
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JUN UENO, S. M. HUANG
Article type: Article
1982 Volume 313 Pages
85-95
Published: March 30, 1982
Released on J-STAGE: August 22, 2017
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The purpose of these two papers are to investigate the relation between physical living environment and residential population in some patterns of housing districts. At first, we examine some patterns of old existing housing districts and select 10 objects from about 80 districts. This survey is based on extent of homogenious physical environment in 2〜5Ha, 200〜500 households. In the part (1), we give a concise report for survey results and refer the following subjects. (1) Method of survey and analysis In order to examine relation between residents and houses, we take the sensus of population and environment that based on official materials. Then we follow owner or renter, uses of house, conditions of environment etc to investigate the relation of residential structure. (2) Residential densities and living standard The density is a important parameter to assess the standard of living environment. There are two kinds of densities, one is the building-to-land ratio and another is total-floor-index. We take dwelling size for per resident (M^2/PERSON) to grade the residents' living standard. No matter where we survey there is a clear relation between density and standard that remain negative correlation. (3) Population structure Generally speaking, there are different composition of population between owner and renter, uses of house and conditions of environment. In this section, we examine above three subjects in details for the purpose of comparing the realities of old-existing housing districts and lately Planned housing estates (DANCHI).
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YASUO NISHIYAMA
Article type: Article
1982 Volume 313 Pages
96-104
Published: March 30, 1982
Released on J-STAGE: August 22, 2017
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In this paper, the auther intends to analyze the site planning theories of Sir Raymond Unwin (1863-1940), who is called the Father of British Town Planning. His main contribution was to establish the British-type of Urban Housing Style. The main characters of his ideas were 'Amenity Approach' and 'The revival of medieval towns and villages'. He made the site plans of New Earswick, Letchworth Garden City, and Hampstead Garden Suburb in the first decade of this century. These residential areas were composed of low-density ("Twelve to the Acre" was Unwin's slogan), low-rise houses. "Amenity Approach" had its origin in the criticism of bylaw housing by the 1875 Public Health Act. He stood at the turning point of the planning ideas from City Sanitary to City Beautiful, and contributed to this change. Also, he analyzed the German and English medieval towns and villages in detail in his classic, Town Planning in Practice (1909), and stressed the importance of the planned visual structure of the residential areas such as irregularity of townscape, bending roads, garden commons, quadrangle to shape housing group. He tried to attain the social goal; the rebuilding of the community life, through better planned environment and physical order. His site planning theories were supported by the middle class people and it may be said that they recognized his theories as the method of community-control of the environment for their benefit. The typical area was "Semi-detached London".
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KAZUHIKO NAITO
Article type: Article
1982 Volume 313 Pages
105-111
Published: March 30, 1982
Released on J-STAGE: August 22, 2017
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The purpose of this paper is to propose about an estimation-method on yearly total number of meetings and participants at a farm village area. This method is based on some rules. They are got from analysis of meetings at 23 farm villages. The outlines of these rules are as follows. 1. A meetings at a farm village have a clear objective area. 2. These objective areas are composed with some ranks. 3. Each areas in these ranks have about the same number of meetings and participants. Therefore, the estimation-method in this paper is as follows. (Objective area's number of meetings in each rank)×(Number of meetings and participants at one objective area)=(Each rank's number of meetings and participants) and, total number of meetings and participants are got by adding up these each rank's number. Besides, I applyed this method to one farm village, and confirmed that this result of the estimation-method is almost the same as the findings of the hearing investigation.
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MINORU KUWAHARA
Article type: Article
1982 Volume 313 Pages
112-126
Published: March 30, 1982
Released on J-STAGE: August 22, 2017
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Giving the instances, I have being considered these development processes about "Hiroma" type which was the old type of afarm houses at the southern district of Mt. Akagi in my first study. In this study I am going to persuade chronologically the relation between the plane and the structure and make clear the formation of "Kuichigai-yoma-dori" type, "Huseikeitanzi" type and "Tanozi" type which were being developed as the farm houses type afterwards.
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KEIZO NAKAMURA
Article type: Article
1982 Volume 313 Pages
127-137
Published: March 30, 1982
Released on J-STAGE: August 22, 2017
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CHARLES SCAWTHORN, YOSHIKAZU YAMADA, HIROKAZU IEMURA, MASAMI KOBAYASHI
Article type: Article
1982 Volume 313 Pages
138-144
Published: March 30, 1982
Released on J-STAGE: August 22, 2017
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A model for determination of post-earthquake fire hazard in urban regions is formulated, which considers building density and properties, wind velocity, fire fighting response and deterioration of this response with increasing seismic intensity. The model is applicable to specific earthquakes and can determine the annual expected losses due to fire spreading on a probabilistic basis. The model's results are compared with observed fire spreading in the 1923 Tokyo, 1948 Fukui and 1978 Miyagiken-oki earthquakes, with satisfactory agreement. Application of the model to the Osaka Japan region indicates fire spreading annual expected losses to be about half of structural shaking losses, although fire losses can exceed shaking losses under certain seismic conditions.
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EIJI MURO
Article type: Article
1982 Volume 313 Pages
145-154
Published: March 30, 1982
Released on J-STAGE: August 22, 2017
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This paper presents the study on some productivity in the Ashiyahama housing complex construction in order to contribute design and constrnction planning for long term and large scale projects with industrialized construction methods. The study was produced with collecting and analyzing daily site reports and time lapse research. As a result of this study, the learning effect and differences in capacity of a work team were found both in the super structure construction and in the interior finish works. In addition, it was recognized that man hour planning and outside order planning based on learning effect are useful in the super structure constructions. Meanwhile, it was realized that efficiency in the interion finish works depends on crew's experience, which resulted in that skill training as will as effective constitution of work teams is significant. Consequently the formula to predict man hour was defined to grasp many factors which influence man hour in works. Also selection and layout of cranes in connection with flat layout and component design have proven useful.
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YOSHIKAZU SASAKI
Article type: Article
1982 Volume 313 Pages
155-164
Published: March 30, 1982
Released on J-STAGE: August 22, 2017
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The Ashiyahama Housing Competition which included construction system as well as planning was carried out for the main purpose of the development of building techniques. This paper is intended to consider the purpose of the development and the problem which occured in the execution process. Every participator proposed its original superstructure system which aimed lightening, enlarging and standardization of the member of the frame-work considering the systems of the production and the transportation. Though the first prized proposal was put into practice on the whole, its planning was considerably modified by many reasons, one of which was the guidance by the goverment authorities and supplier considering safety and administration systems. Moreover, the construction systems was tolerably modified eventually. This showed the construction systems could be changed if the economical situation have changed. So the role of the expected contractor was important in technical development through the term of settlement of the working plans. By which, the proposed techniques were actualized and improved for the practical use. This type of condition for modification could highly occur in future projects which are aimed the development of techniques. Therefore, it is necessary to re-consider the situation of the construction systems in the proposal adding to the problem of the standard performance. Hereafter, We have to study the way in which both of the client and the contractor can make a certain profit by accelerating a technical development in construction terms as well as in planning terms.
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[in Japanese]
Article type: Article
1982 Volume 313 Pages
165-166
Published: March 30, 1982
Released on J-STAGE: August 22, 2017
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[in Japanese], [in Japanese]
Article type: Article
1982 Volume 313 Pages
167-168
Published: March 30, 1982
Released on J-STAGE: August 22, 2017
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Article type: Appendix
1982 Volume 313 Pages
App2-
Published: March 30, 1982
Released on J-STAGE: August 22, 2017
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